JP2005304403A - Farm equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide farm equipment hardly causing bad condition of blocking a bolt from being pulled out when a winding-preventing body is bent. <P>SOLUTION: The farm equipment 1 has an equipment body 2 having shaft-supporting parts 12, 14. The farm equipment 1 has a shaft part 25 supported by the shaft-supporting parts 12, 14, and a rotary shaft body 21 having flange part 26 for a claw, protruded from the shaft part 25. The tillage claw 27 is attached to the flange part 26 for the claw, and a claw-checking body 33 for checking the tillage claw 27 is also attached to the flange part 26. The claw-checking body 33 has the winding-preventing body 35 for preventing the winding of a foreign material on the shaft-supporting parts 12, 14. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an agricultural machine capable of preventing the occurrence of a problem that a bolt cannot be removed when a winding prevention body is bent.

Conventionally, for example, a work machine body having a shaft support portion at each lower end of a chain case and a bracket, a shaft portion rotatably supported by the shaft support portion, and a rotating shaft having a claw flange portion protruding from the shaft portion Body, tilling claws attached to the claw flanges with bolts and nuts, and rod-shaped rods that are provided at the tips of the screw threads of the bolts to prevent wrapping of miscellaneous substances such as rice straw around the outer periphery of the shaft support part A farm work machine provided with a winding prevention object is known (for example, refer to patent documents 1).
Japanese Utility Model Publication No. 48-36889

  However, in the conventional farm work machine, since the anti-winding body is provided at the tip of the screw portion of the bolt, there is a possibility that the bolt cannot be removed when the anti-winding body is bent.

  This invention is made | formed in view of such a point, and it aims at providing the agricultural machine which can prevent generation | occurrence | production of the malfunction that a volt | bolt cannot be pulled out if a winding prevention body bends.

  The agricultural machine according to claim 1, a work machine body having a shaft support portion, a shaft portion rotatably supported by the shaft support portion, and a rotary shaft body having a protruding portion protruding from the shaft portion, A tilling nail attached to the protruding portion, a nail presser attached to the protruding portion and supporting the tilling nail, and a nail presser provided on the nail presser to wind up miscellaneous items around the outer periphery of the shaft support portion. It is provided with a wrapping preventing body to prevent.

  And since the winding prevention body is provided in the nail presser body, it becomes possible to prevent the occurrence of a problem that the bolt cannot be removed when the winding prevention body is bent.

  The agricultural machine according to claim 2, a work machine body having a shaft support portion, a shaft portion rotatably supported by the shaft support portion, and a rotary shaft body having a projecting portion protruding from the shaft portion, A tilling claw attached to the projecting portion with a bolt and a nut, and a wrapping preventing body provided on the nut and preventing wrapping of foreign matters around the outer peripheral portion of the shaft support portion.

  And since the winding prevention body is provided in the nut, it becomes possible to prevent the occurrence of a problem that the bolt cannot be removed when the winding prevention body is bent.

  The agricultural machine according to claim 3, wherein the working machine body having a shaft support portion, a shaft portion rotatably supported by the shaft support portion, and a rotating shaft body having a protruding portion protruding from the shaft portion; A tilling claw attached to the projecting portion, and a winding preventing body provided on the projecting portion and preventing a foreign matter from being wound around the outer peripheral portion of the shaft support portion.

  And since the winding prevention body is provided in the protrusion part of the rotating shaft body, when the winding prevention body bends, it will become possible to prevent generation | occurrence | production of the malfunction that a volt | bolt will not come off.

  The farm work machine according to claim 4, a work machine body having a shaft support portion, a shaft portion rotatably supported by the shaft support portion, and a rotary shaft body having a protruding portion protruding from the shaft portion, A tilling claw attached to the projecting portion, and a winding preventing body provided on the tilling nail and preventing a foreign matter from being wound around the outer peripheral portion of the shaft support portion.

  And since the winding prevention body is provided in the tilling nail, it becomes possible to prevent the occurrence of a problem that the bolt cannot be removed when the winding prevention body is bent.

  The agricultural machine according to claim 5, wherein the working machine body having a shaft support portion, a shaft portion rotatably supported by the shaft support portion, and a rotating shaft body having a protruding portion protruding from the shaft portion, A tilling claw attached to the projecting portion, and a winding preventing body provided on the shaft portion and preventing a foreign matter from being wound around the outer peripheral portion of the shaft support portion.

  And since the winding prevention body is provided in the shaft part of the rotating shaft body, it becomes possible to prevent the occurrence of a problem that the bolt cannot be removed when the winding prevention body is bent.

  The agricultural working machine according to claim 6, a work machine body having a shaft support portion, a shaft portion rotatably supported by the shaft support portion, and a rotary shaft body having a protruding portion protruding from the shaft portion, A tilling claw attached to the projecting portion, an attachment body attached to the shaft portion, and an anti-winding body provided on the attachment body and preventing wrapping of foreign matters around the outer peripheral portion of the shaft support portion; Is provided.

  And since the winding prevention body is provided in the attachment body attached to the axial part, it is possible to prevent the occurrence of a problem that the bolt cannot be removed when the winding prevention body is bent.

  According to the first aspect of the present invention, since the anti-winding body is provided on the claw presser, it is possible to prevent the occurrence of a problem that the bolt cannot be removed when the anti-winding body is bent.

  According to the invention which concerns on Claim 2, since the winding prevention body is provided in the nut, generation | occurrence | production of the malfunction that a volt | bolt cannot be pulled out if a winding prevention body bends can be prevented.

  According to the invention which concerns on Claim 3, since the winding prevention body is provided in the protrusion part of the rotating shaft body, generation | occurrence | production of the malfunction that a volt | bolt cannot be pulled out when a winding prevention body bends can be prevented.

  According to the invention which concerns on Claim 4, since the winding prevention body is provided in the tilling nail | claw, generation | occurrence | production of the malfunction that a volt | bolt cannot be pulled out if a winding prevention body bends can be prevented.

  According to the invention which concerns on Claim 5, since the winding prevention body is provided in the axial part of the rotating shaft body, generation | occurrence | production of the malfunction that a volt | bolt cannot be pulled out when a winding prevention body bends can be prevented.

  According to the invention which concerns on Claim 6, since the winding prevention body is provided in the attachment body attached to the axial part, generation | occurrence | production of the malfunction that a volt | bolt cannot be removed when a winding prevention body bends can be prevented.

  An embodiment of an agricultural machine according to the present invention will be described with reference to the drawings.

  In FIG. 1, reference numeral 1 denotes an agricultural machine. The agricultural machine 1 is connected to a tractor (not shown) that is a traveling vehicle. It is a tillage leveling device.

  The farm work machine 1 includes a work machine body 2. The work machine body 2 has a three-point connecting portion (not shown), and the three-point connecting portion is connected to the three-point link portion at the rear of the tractor. The work implement body 2 has an input shaft holding portion (gear box) 4 at the center in the left-right direction. The input shaft holding portion 4 is provided with an input shaft 5 for inputting power from the tractor side so as to be rotatable. Yes. The input shaft 5 is connected to the PTO shaft of the tractor via a transmission shaft or the like.

  The working machine body 2 includes a cultivating means 6 that performs a cultivating work while rotating in a predetermined direction based on power from the input shaft 5 side, and a grading means that performs a grading work at a position behind the cultivating means 6 (FIG. (Not shown).

  Here, the work machine main body 2 has a chain case (transmission case) 8 and a bracket 9 which are opposed to each other at the left and right ends.

  A substantially cylindrical shaft support portion (boss portion) 12 is fixed to the lower end portion of the substantially box-shaped case body portion 11 of the chain case 8, and this shaft support portion 12 is formed from the inner surface of the lower end portion of the case body portion 11. It protrudes inward that is the bracket 9 side. Similarly, a substantially cylindrical shaft support portion (boss portion) 14 is fixed to the lower end portion of the substantially plate-shaped bracket body portion 13 of the bracket 9, and this shaft support portion 14 is the lower end portion of the bracket body portion 13. It protrudes inward from the inner surface, which is the chain case 8 side.

  The tilling means 6 has a rotating shaft 21 that is rotatably disposed between the chain case 8 and the bracket 9.

  The rotary shaft body 21 includes a shaft portion 25 that is longitudinally supported in the left-right direction and is rotatably supported by a shaft support portion 12 of the chain case 8 and a shaft support portion 14 of the bracket 9 via a bearing 22 and a seal 23 with a shaft. The claw flange portion 26, which is a plurality of substantially annular projecting portions, projects from the outer peripheral portion of the shaft portion 25 at intervals in the left-right direction.

  As shown in FIGS. 1 to 3, each of the plurality of claw flange portions 26 includes a plurality of tilling claws 27 that rotate in a predetermined direction together with the rotary shaft body 21 to perform a tilling operation, and a bolt 28 and The nut 29 is detachably attached. The nut 29 is a special nut composed of, for example, a slightly long base plate portion 30 and nut portions 31 fixed to both ends of the base plate portion 30.

  Of the plurality of claw flanges 26, the claw flange 26 closest to the chain case 8 has a plurality of, for example, two claw pressers (claw presser nuts) 33 for supporting the tilling claw 27 by bolts 34. Removably attached to each nail retainer 33, a stick-like, projecting winding that prevents winding of straws and other miscellaneous matter (not shown) around the outer periphery of the shaft support 12 of the chain case 8 The prevention body 35 is fixed in a protruding manner toward the chain case 8 side.

  The claw presser 33 has, for example, a slightly long base plate portion 36, and nut portions 37 are fixed to both ends of the base plate portion 36, and one end surface of the base plate portion 36 is in contact with and supported by the nut plate 37. The surface 38 is in contact with the tilling claw 27.

  Further, the wrapping preventing body 35 is constituted by, for example, a straight rod-shaped member 41 having a substantially circular cross section, and a part of the outer periphery at the base end portion of the rod-shaped member 41 is on the side of the base plate portion 36 of the claw presser 33. It is fixed to the edge by welding or the like. The tip of the rod-shaped member 41 is located in the vicinity of the inner surface of the case main body 11 of the chain case 8.

  As shown in FIG. 1, an anti-winding body 35 and the like are provided on the claw flange portion 26 side closest to the bracket 9 among the plurality of claw flange portions 26, similarly to the chain case 8 side. Yes. Further, a sprocket 42 is provided at an end portion of the rotating shaft body 21 located in the case main body 11 of the chain case 8, and a chain (not shown) is spanned around the sprocket 42.

  The tilling means 6 is composed of a rotary shaft 21 and a tilling claw 27 and the like, and the leveling means is composed of a leveling plate or the like provided at the rear end portion of the tillage cover so as to be vertically rotatable.

  Next, the operation and the like of the farm work machine 1 will be described.

  When the farm equipment 1 is moved forward together with the tractor by traveling of the tractor, the tilling work is performed by the plurality of tilling claws 27 of the tilling means 6, and the leveling work is performed by the leveling means.

  At this time, the anti-winding body 35 provided on the claw presser body 33 pivots along the outer peripheral portion at a position near the outer peripheral portion of the shaft support portions 12 and 14, so The wrapping of miscellaneous matters such as rice straw around the outer peripheral portions of the support portions 12 and 14 is prevented.

  And according to the said agricultural working machine 1, since the anti-winding body 35 comprised by the rod-shaped member 41 is provided in the nail | claw presser body 33, when the anti-winding body produced conventionally bends, at the time of replacement | exchange of a cultivation nail | claw Thus, it is possible to prevent the occurrence of a problem that the bolt cannot be removed, and even if the winding preventing body 35 is slightly bent, no problem occurs.

  In the above-described embodiment, the configuration in which the anti-winding body 35 is provided integrally with the claw presser body 33 has been described. However, for example, as shown by the two-dot chain line in FIG. A configuration integrally provided with the nut 29 which is a special nut may be employed. The anti-winding body 35 provided on the nut 29 is constituted by, for example, a straight rod-shaped member 41 having a substantially circular cross section, and a part of the outer periphery at the base end portion of the rod-shaped member 41 is a base plate portion of the nut 29. It is fixed to the side edge of 30 by welding or the like, and the tip end portion of this rod-like member 41 is located in the vicinity of each inner surface of the chain case 8 and the bracket 9.

  As shown in FIGS. 4 and 5, the farm work machine 1 may have a configuration in which the winding preventing body 35 is integrally provided on the outer peripheral portion of the claw flange portion 26 of the rotating shaft body 21. The anti-winding body 35 provided in the claw flange portion 26 is constituted by, for example, a straight rod-like member 41 having a substantially circular cross section, and a part of the outer periphery at the base end portion of the rod-like member 41 is a claw flange. The rod 26 is fixed to the outer peripheral edge of the portion 26 by welding or the like, and the tip of the rod-like member 41 is located near the inner surfaces of the chain case 8 and the bracket 9.

  Furthermore, as shown in FIGS. 6 and 7, the farm work machine 1 may have a configuration in which the wrapping prevention body 35 is integrally provided at the base end portion of the tilling claw 27. The anti-winding body 35 provided on the tillage claw 27 is constituted by, for example, a straight rod-like member 41 having a substantially circular cross section, and the end surface of the proximal end portion of the rod-like member 41 is at the proximal end portion of the tillage claw 27. The rod-like member 41 is fixed by welding or the like, and the distal end portion of the rod-like member 41 is positioned in the vicinity of the inner surfaces of the chain case 8 and the bracket 9.

  Further, as shown in FIG. 8, the farm work machine 1 may be configured such that the winding preventing body 35 is integrally provided at the end portion of the shaft portion 25 of the rotating shaft body 21. The anti-winding body 35 provided on the shaft portion 25 is constituted by, for example, a rod-shaped member 41 having a substantially L shape and a substantially circular cross section, and the end surface of the base end portion of the rod-shaped member 41 is an end portion of the shaft portion 25. The rod-like member 41 is fixed to the outer peripheral surface by welding or the like, and the distal end portion of the rod-like member 41 is positioned in the vicinity of the inner surfaces of the chain case 8 and the bracket 9.

  Further, as shown in FIG. 9, the anti-winding body 35 is inserted into the hole 36 a formed in the base plate portion 36 of the nail pressing body 33 by inserting a rod-like member 41 as the anti-winding body 35. The configuration provided in 33 may be used. Although not shown in the drawings, the anti-winding body 35 may be provided by inserting the rod-like member 41 in the other embodiments described above. In any of the above embodiments, the anti-winding body 35 is provided with the nail presser body 33 and the like. It may be provided integrally or detachably.

  Moreover, as shown in FIG. 10, the structure which provided the winding | wrapping prevention body 35 in three places of the outer peripheral part of the nail | claw flange part 26 may be sufficient, and as shown in FIG. The structure provided with the winding prevention body 35 may be sufficient. That is, in any of the embodiments, the number of the anti-winding body 35 is arbitrary and may be one or a plurality. Further, the anti-winding body 35 may be formed of a rigid body and elastic such as rubber. It may be composed of a body.

  As shown in FIGS. 12 and 13, the agricultural machine 1 has a protruding attachment in which the wrapping preventing body 35 is fixedly attached to the outer peripheral portion of the end portion of the shaft portion 25 of the rotating shaft body 21 by welding or the like. The structure provided so that attachment or detachment to the attachment plate 46 which is a body may be sufficient. The anti-winding body 35 provided on the mounting plate 46 is composed of, for example, a bolt 47 and a nut 48. That is, a bolt hole 46a is formed in the mounting plate 46, a shaft 47a of a bolt 47 is inserted into the bolt hole 46a, and a nut 48 is screwed into the shaft 47a of the bolt 47. The nut 48 is a high nut having a large axial length, and the end of the nut 48 opposite to the bolt 47 side is located near the inner surfaces of the chain case 8 and the bracket 9. A plurality of substantially cylindrical protruding portions 26a, which are projecting substantially cylindrical, protrude from the outer peripheral portion of the shaft portion 25 of the rotary shaft body 21 shown in FIG. 12, and a tilling nail 27 is attached to each nail holder portion 26a. It is done.

  Further, the anti-winding body 35 of each of the above embodiments may be appropriately combined. For example, the anti-winding body 35 is provided on the nail presser body 33 and the nut 29, or the anti-winding body 35 is provided on the nail presser body 33. Also, a configuration provided on the tilling claw 27 may be used.

It is a fragmentary sectional view of one embodiment of the agricultural machine of the present invention. It is a principal part cross-section part of an agricultural working machine same as the above. It is a principal part side view of an agricultural working machine same as the above. It is a principal part cross-sectional part of other embodiment of the agricultural machine of this invention. It is a principal part side view of an agricultural working machine same as the above. It is a principal part cross-section part of further another embodiment of the agricultural machine of this invention. It is a principal part side view of an agricultural working machine same as the above. It is a schematic diagram of other embodiment of the agricultural machine of this invention. It is a principal part side view of further another embodiment of the agricultural machine of this invention. It is a principal part side view of further another embodiment of the agricultural machine of this invention. It is a principal part side view of further another embodiment of the agricultural machine of this invention. It is a principal part side view of further another embodiment of the agricultural machine of this invention. It is a principal part side view of further another embodiment of the agricultural machine of this invention.

Explanation of symbols

1 Agricultural work machine 2 Work machine body
12, 14 shaft support
21 Rotating shaft
25 Shaft
26 Claw flange that is a protrusion
26a Claw holder that is a protrusion
27 Claw
28 volts
29 nuts
33 Nail presser
35 Anti-winding body
46 Mounting plate as mounting body

Claims (6)

A work machine body having a shaft support;
A rotating shaft body having a shaft portion rotatably supported by the shaft support portion and a protruding portion protruding from the shaft portion;
A tilling claw attached to the protrusion,
A nail presser attached to the protrusion and supporting the tilling nail,
An agricultural machine, comprising: a claw-preventing body that is provided on the claw presser body and prevents a foreign matter from being wound around the outer peripheral portion of the shaft support portion. A work machine body having a shaft support;
A rotating shaft body having a shaft portion rotatably supported by the shaft support portion and a protruding portion protruding from the shaft portion;
Tillage claws attached to the protrusions with bolts and nuts;
An agricultural work machine comprising: an anti-winding body that is provided on the nut and prevents a foreign matter from being wound around an outer peripheral portion of the shaft support portion. A work machine body having a shaft support;
A rotating shaft body having a shaft portion rotatably supported by the shaft support portion and a protruding portion protruding from the shaft portion;
A tilling claw attached to the protrusion,
An anti-winding machine provided with the anti-winding body provided on the projecting portion and preventing the wrapping of miscellaneous matter around the outer periphery of the shaft support portion. A work machine body having a shaft support;
A rotating shaft body having a shaft portion rotatably supported by the shaft support portion and a protruding portion protruding from the shaft portion;
A tilling claw attached to the protrusion,
An agricultural work machine comprising: an anti-winding body that is provided on the tillage nail and prevents a foreign matter from being wound around the outer peripheral portion of the shaft support portion. A work machine body having a shaft support;
A rotating shaft body having a shaft portion rotatably supported by the shaft support portion and a protruding portion protruding from the shaft portion;
A tilling claw attached to the protrusion,
An agricultural work machine comprising: an anti-winding body that is provided on the shaft portion and prevents a foreign matter from being wound around an outer peripheral portion of the shaft support portion. A work machine body having a shaft support;
A rotating shaft body having a shaft portion rotatably supported by the shaft support portion and a protruding portion protruding from the shaft portion;
A tilling claw attached to the protrusion,
An attachment body attached to the shaft portion;
An agricultural work machine comprising: an anti-winding body that is provided on the attachment body and prevents a foreign matter from being wound around the outer peripheral portion of the shaft support portion.

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