JP2007151417A - Mounting converter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mounting converter divertible as a rotary working implement for standard three-point use by mounting on a rotary working implement of special three-point link use. <P>SOLUTION: The mounting converter 5, with a first bracket 31 and a second bracket 41 as the main parts, is such as to be usable as a rotary working implement for standard three-point use by mounting on a rotary working implement 1 of special three-point link use detached from a tractor 2. Furthermore, a gauge wheel 56 is retractilely supported on the underside of this mounting converter 5, enabling the working plane height of the rotary working implement 1 to be adjusted. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a rotary working machine, and more particularly, to a mounting conversion device capable of converting into a rotary working machine for a standard three-point link on the basis of mounting on a rotary working machine for a special three-point link.

  A rotary working machine used in a field is connected to the rear part of a tractor and used to cultivate soil in the field (Patent Document 1). As a method of attaching this rotary work machine to the tractor, there are a standard three-point link defined by Japanese Industrial Standards (JIS) and a special three-point link that is generalized by Japanese manufacturers. Tilling work is performed by selecting one of the link methods according to the work purpose.

JP 2001-269011 A

  The special three-point link has an advantage that a paddy field with less headland can be obtained by improving the turning performance of the tractor by bringing the rotary work machine closer to the tractor in accordance with the actual situation in Japan where there are many paddy fields. However, with a rotary work machine with a special three-point link, it is difficult to adjust the work posture because the distance between the tractor and the work machine is narrow, and in order to cope with shallow tillage, etc. of paddy fields, rotary work according to the work It was necessary to change to a machine. On the other hand, although the standard three-point link is inferior in the turning performance of the tractor, it can be easily connected and exchanged with other general-purpose work machines by the unified standard link mechanism, and covers a variety of farm work machines with one standard three-point link. It is possible. In a Japanese agricultural environment where these special three-point links and standard three-point links coexist, there is a need for means that can be used as standard three-point link rotary work machines even for special three-point link rotary work machines. .

  Therefore, the present invention is based on the mounting of a rotary work machine on a special three-point link, and can be easily converted into a standard three-point link rotary work machine by adding a few accessory parts. Is intended to provide.

In order to achieve the above object, the present invention according to claim 1 is detachably attached to a rotary working machine (1), and the rotary working machine is connected to a standard three-point link (4) and a special three-point link (3). A wearing conversion device (5) that can be converted into
A hole (removably fixed to a plate (10) to which the lower link connecting pin (10a) is attached when the special three-point link of the rotary work machine (1) is mounted, and the lower link connecting pin is attached to the tip portion ( A pair of first brackets (31) having 33a);
A support hole that can be detachably fixed to a top mast (11) to which a top link connecting pin is attached when the special three-point link of the rotary work machine (1) is mounted, and the top link connecting pin is attached to a tip portion. A second bracket (41) having (43a);
In the rotary work machine (1) when the special three-point link is mounted, the top mast (11) and the plate (10) are connected, and the first bracket (31) and the second bracket (41) are connected. A connection plate (46, 46) that can be connected,
There exists in the mounting conversion apparatus (5) characterized by the above.

The present invention according to claim 2 includes a support member (50) fixed integrally to the first bracket (31),
A pair of adjustment members (55) supported by the support member so as to be movable in the vertical direction and fixed to a predetermined position;
A gauge wheel (56) rotatably supported at the tip of the adjustment member,
It exists in the mounting | wearing conversion apparatus (5) of Claim 1.

  The reference numerals in the parentheses are for reference to the drawings and do not limit the present invention.

  According to the first aspect of the present invention, by attaching the first bracket and the second bracket to the rotary working machine for attaching the special three-point link, and connecting the first bracket and the second bracket by the connecting plate, The rotary working machine can be easily converted for standard three-point link mounting, and the rotary working machine can be easily converted into a special three-point link mounting specification and a standard link mounting specification.

  Furthermore, just by holding the first bracket and the second bracket as accessory parts, the lower link connection pin and the top link connection pin can be shared and the connection plate can be shared. The standard three-point link mounting specifications are all used as they are, and only a small number of parts such as the first and second brackets are sufficient.

  According to the second aspect of the present invention, since the gauge wheel is attached to the first bracket, the gauge wheel can be easily attached when used as a standard three-point link mounting specification.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. 1 to 6 show an embodiment of the present invention. FIG. 1 is a side view showing a state where a rotary working machine for attaching a special three-point link is connected to a tractor, and FIG. FIG. 3 is a side view showing a state in which a mounting conversion device is mounted on a rotary mounting machine for link mounting and connected to a tractor via a standard three-point link. FIG. 3 is a diagram of a single rotary working machine for mounting a special three-point link. Fig. 4 is a plan view of a rotary work machine for mounting a special three-point link, and Fig. 5 is a standard three-point link mounted with a mounting conversion device attached to the rotary work machine for mounting a special three-point link. 6 is a side view showing a state converted into a rotary work machine for a machine, and FIG. 6 shows a state converted to a rotary work machine for mounting a standard three-point link by attaching a mounting conversion device to the rotary work machine for mounting a special three-point link. FIG.

  As shown in FIGS. 1 and 2, the rotary work machine 1 is attached to the rear portion of the tractor 2 via a special three-point link 3 or a standard three-point link 4 and is used for farming work in a field.

  As shown in FIGS. 1, 3 and 4, the rotary working machine 1 for the special three-point link has a cylindrical main frame 12 extending in the horizontal direction of the ground with respect to the traveling direction of the tractor 2 ( 4), a pair of lower link connecting plates 10 and 10 are provided in the traveling direction at positions spaced apart from the central portion of the main frame 12. A top mast 11 is erected upward from the center of the main frame 12. The front portions of the lower link connecting plates 10 and 10 and the front portion of the top mast 11 are connected by connecting plates 46 and 46, and the lower links 6 and 6 'and the top links 7 and 7' to be described later. Connected to the tractor 2.

  As shown in detail in FIG. 3, an input shaft 15 projects forward from the center of the main frame 12 of the rotary work machine 1, and is connected to power transmitted from the PTO shaft of the tractor. The driving force is transmitted to both ends of the main frame 12 by a driving shaft (not shown) in the main frame 12. The chain case 13 and the upper end of the bracket 14 are fixed to both ends of the main frame 12, and the driving force from the drive shaft is passed through a power transmission device (not shown) in the chain case 13, and The tilling work proceeds by rotating the tilling rotary 16 disposed rotatably at the lower end of the bracket 14.

  A front cover 23 attached to the main frame 12 hangs down on the front upper surface of the tilling rotary 16 corresponding to the lower portion of the main frame 12, and the front surface of the tilling rotary 16 is covered by the front cover 23.

  At the rear edge of the front cover 23, a pair of arms 18, 18 extend from a position having the same width as the attachment of the lower link connecting plates 10, 10 toward the rear side. A substantially rectangular plate-like rear cover 17 extending in parallel with the frame 12 is slidably attached to the field scene.

  Between the tilling rotary 16 and the rear cover 17, a subframe 22 extending in parallel with the main frame 12 is provided, and a subsoiler 20 is fixed to the subframe 22 via a subsoiler arm 21. The subsoiler 20 is connected to a subsoiler operation lever 23 provided at the center of the main frame 12 through a link mechanism so as to be vertically movable.

  The rotary working machine 1 for mounting the special three-point link configured as described above is connected to the tractor 2 so as to be swingable in the vertical direction via the special three-point link 3 shown in FIG. The special three-point link 3 includes a pair of lower links 6 ′ and 6 ′ that are rotatably connected to the lower rear end of the machine base of the tractor 2 via a coupling pin, and a middle portion of the lower links 6 ′ and 6 ′. The lift rods 8 ′ and 8 ′ supported so as to be swingable by the coupling pin and connected to the rear upper part of the tractor 2 and the tractor mounting plate 9 ′ attached to the middle stage of the rear end of the tractor 2 can be rotated via the coupling pin. It is comprised by the top link 7 'attached to. The rear ends of these lower links 6 ′ and 6 ′ are fitted to lower link connecting plate pins 10 a and 10 a inserted in the left and right outward directions at the front ends of the lower link connecting plates 10 and 10 of the rotary work machine 1. The rear end of the top link 7 ′ is rotatably connected to a top mast support hole 11 a drilled in the front end of the top mast 11 via a connection pin.

  The configuration of the rotary working machine 1 for mounting the special three-point link has been described above. Next, a mechanism for converting to the rotary working machine for mounting the standard three-point link will be described. In the following, since the rotary working machine 1 for attaching the special three-point link and the standard three-point link is the same, the description of the overlapping configuration is omitted.

  As shown in FIGS. 2, 5, and 6, the rotary work used for attaching the special three-point link by attaching the mounting conversion device 5, which is a feature of the present invention, to the front portion of the rotary working machine 1 described above. The machine can be used as a rotary work machine for mounting a standard three-point link. Further, the rotary working machine 1 for attaching the standard three-point link is characterized in that a gauge wheel 56 for adjusting the distance between the farm scene and the tilling rotary 16 of the rotary working machine can be attached.

  The mounting conversion device 5 includes a pair of first brackets 31 and 31 and a second bracket 41 as basic components, and includes connecting plates 46 and 46 and gauge wheel components that are attached thereto.

  The first brackets 31, 31 are first extension plates 33, 33 that are mounted flush with the lower link connection plate in front of the lower link connection plates 10, 10, and the lower link connection plates 10, 10 and the first extension plate 33. , 33 from the outer surface of the first mounting plates 32, 32 overlapping the both plates. The second half of the first extension plates 33, 33 and the first half of the first mounting plates 32, 32 are fastened together by a plurality of bolts and nuts 35, and the latter half of the first mounting plates 32, 32 is integrated. A plurality of mounting holes are provided, and one of the mounting holes overlaps with the hole from which the lower link connecting plate pin 10a has been removed from the lower link connecting plate 10, and can be detachably fastened by the bolt nut 34. A perforation 33a is formed at the front ends of the first extension plates 33, 33, and the lower link connection plate pin 10a removed from the lower link connection plate 10 can be diverted to be reinserted into the perforation 33a. By mounting the first brackets 31, 31, the entire length of the lower link connecting plate 10 is extended to the length of the first extension plates 33, 33.

  Next, the second bracket 41 is positioned in front of the top mast 11 and sandwiches the top mast 11 so that the top mast 11 can be removed from the outside, and a pair of second mounting plates 42 and 42 at the tips of the second mounting plates 42 and 42. It consists of the 2nd extension plates 43 and 43 fixed to the outer surface of the top mast 11 and the same surface. A plurality of mounting holes are provided at the rear end portions of the second mounting plates 42, 42, and one of the mounting holes overlaps with the support hole 11 a drilled in the top mast 11, and the top through the bolt nut 44. The mast 11 can be detachably fastened. At the front ends of the second extension plates 43, 43, support holes 43a, 43a for attaching the connecting pins are perforated, and the support holes 43a are connected by a cylindrical member. Thereby, the top mast 11 is extended in the forward direction to the length of the second bracket 41.

  The first brackets 31 and 31 and the second bracket 41 are integrated by connecting the vicinity of the perforations 33a and 43a provided at the front ends thereof by the connection plates 46 and 46. In the rotary working machine 1 for the special three-point link, the top mast 11 and the lower link connecting plates 10 and 10 are connected to each other, and the first brackets 31 and 31 are removed from the rotary working machine 1. And the connection plate 46 of the second bracket 41 can be diverted.

  Next, the gauge wheel component that can be attached to the lower part of the mounting conversion device 5 will be described. The gauge wheel component is a member attached between the rotary work machine 1 and the tractor 2, and includes a support member 50, an adjustment unit 55, and a gauge wheel 56.

  The support member 50 is fixed to the lower part of the position where the first extension plates 33, 33 of the first brackets 31, 31 and the first mounting plates 32, 32 overlap each other, and has a tubular shape extending in parallel with the main frame 12. The frame includes a support frame 51 and support plates 52 and 52 fixed to the outside of the fixing position of the support frame 51. The support plates 52 and 52 are fastened to the support frame 51 via U bolts or plate members, etc., but are supported by sliding on the support frame 51 in the left-right direction by adjusting the bolt fastening as necessary. The distance between the plates can be changed. Further, insertion tube portions 53 and 53 that extend in a substantially vertical direction are fixed to the front end portions of the support plates 52 and 52, and become adjustment members 55 and 55 in cooperation with insertion rods 54 and 54 described below. Bar-shaped insertion rods 54, 54 are inserted into the insertion tube portions 53, 53, and a plurality of through holes arranged in the longitudinal direction provided in the insertion rods 54, 54 and the side surfaces of the insertion tube portions 53, 53 are perforated. The height of the adjusting member 55 can be adjusted by inserting a pin with the formed hole. Wheel shafts 57, 57 are fixed to the lowermost portions of the insertion rods 54, 54 in parallel with the main frame 12, and gauge wheels 56, 56 are rotatably attached to the wheel shafts 57, 57. .

  Next, a description will be given of a link mechanism when the mounting conversion device 5 described above is mounted on the rotary work machine 1 and used for a standard three-point link. FIG. 2 shows a state in which the standard three-point link 4 is attached to the rear portion of the tractor 2 and is connected to the mounting conversion device 5.

  The standard three-point link 4 includes a pair of lower links 6 and 6 that are rotatably connected from the lower rear end of the machine base of the tractor 2 via a connecting pin, and a middle pin of the lower link 6 and 6 swings by a connecting pin. Lift rods 8 and 8 that are movably supported and are connected to the rear upper portion of the tractor 2, and a top link 7 that is pivotally attached to a tractor attachment plate 9 attached to a middle stage of the rear end of the tractor 2 via a coupling pin. It consists of. The rear ends of the lower links 6, 6 are fitted to lower link connecting plate pins 10 a, 10 a inserted from the front ends of the first brackets 31, 31 of the mounting conversion device 5 toward the left and right outward directions, and the top link 7 is rotatably connected to a support hole 43a drilled in the front end of the second bracket 41 via a connecting pin. With these two connecting pin connections, the rotary work machine 1 can be rotated around the connection point between the lower links 6, 6 and the top link 7, and is connected to the rear of the tractor 2 so as to be movable up and down. Further, as a feature of the standard three-point link 4, the top link 7 is a turn buckle that can extend and contract its entire length, and the vertical position of the rotary work machine 1 is changed by adjusting the length of the top link 7. be able to.

  Next, after describing the mounting of the mounting conversion device 5 having the above structure, the operation of the rotary working machine 1 for the standard three-point link will be described.

  First, the connecting pin inserted in the top mast 11 is removed from the top mast support hole 11a from the rotary working machine 1 for the special three-point link 3 shown in FIG. 1, and the top link 7 'and the top mast 11 are connected. At the same time, the lower link connecting plate pins 10a and 10a into which the lower link connecting plates 10 and 10 are inserted are extracted, and the connection between the lower links 6 'and 6' and the lower link connecting plates 10 and 10 is released. As a result, the rotary work machine 1 becomes a single unit and the mounting conversion device 5 can be mounted. Next, the connecting plates 46 and 46 that connect the top mast 11 and the lower link connecting plates 10 and 10 are removed by releasing the bolt fastening. These lower link connecting plate pins 10a and 10a and the connecting plates 46 and 46 are connected to each other. This will later become a part that will be diverted for standard three-point links. At this time, the special three-point link 3 attached to the tractor 2 is replaced with the standard three-point link 4.

  Next, in the mounting of the mounting conversion device 5, the first bracket 31 first fastens the first extension plate 33 and the first mounting plate 32 with the bolts and nuts 35 using the mounting holes provided in the first bracket 31. The rear end of the mounting plate 32 is overlapped with the lower link connecting plate 10 and fastened by a bolt and nut 34. In this case, the hole into which the lower link connecting plate pin 10a has been inserted is used as an attachment hole.

  Similarly, after the second bracket 41 is fastened by the bolt nut 44 using the support hole 11a of the top mast 11, the connecting plate in which the tip end portion of the first bracket 31 and the tip end portion of the second bracket 41 are removed first. By connecting with 46, the mounting of the mounting conversion device 5 is completed.

  Next, the insertion rods 54 and 54 to which the gauge wheel 56 is attached are inserted from below the insertion tube portions 53 and 53, and are fixed with pins as the length of the insertion rod 54 according to the tilling depth of the tilling rotary 16. .

  As described above, the rotary working machine 1 for the special three-point link is converted as a rotary working machine for the standard three-point link, and can be connected to the standard three-point link 4 of the tractor 2 and attached. To connect the conversion device 5, the rear ends of the lower links 6 and 6 of the standard three-point link are attached to the first of the conversion device 5, contrary to the procedure for releasing the connection from the special three-point link 3 described above. The lower link connecting plate pin 10a is inserted and connected with the hole 33a at the tip of the bracket 31, and the rear end of the top link 7 is overlapped with the support hole 43a at the tip of the second bracket 41 to connect the pin. Insert and connect.

  In the rotary work machine 1 for the standard three-point link, the engine power from the tractor 2 rotates the tillage rotary 16 via the input shaft 15, the drive shaft, and the power transmission device, so that the tillering work can proceed in the field. proceed. During the tilling work, the height of the gauge wheel 56 can be adjusted by selecting the through hole provided in the insertion rod 54 and the position of the hole drilled in the insertion tube portions 53, 53. The height can also be adjusted by changing the expansion / contraction length of the top link 7. The rotary working machine for the standard three-point link in the field has a tilling depth by adjusting the front edge height of the rear cover 17 by rotating the leveling body operating lever 19 at the center of the rotary working machine. After the adjustment, the field is plowed by the tractor 2.

  When a certain tillage work is completed and the next field is reached, the rear part of the rotary work machine 1 is lifted by the force of a hydraulic cylinder or the like because the rear part of the rotary work machine 1 needs to be lifted from the cultivation surface and get over the aze. . The first bracket 31 in this case rotates with the lower link 6 of the standard three-point link 4 as a radius, while the second bracket 41 has a smaller rotation diameter due to the top link 7 having a shorter length than the lower link 6. Since it rotates, the rotary working machine can form a forward leaning posture in which the top mast 11 moves forward while moving up, and the rear part can be lifted greatly by the movement of two different rotation diameters.

  As described above, the mounting conversion device 5 according to the present invention can be easily converted into a standard three-point rotary working machine by being mounted on a special three-point rotary working machine, and can also be converted into a special three-point rotary working machine. Since the lower link connecting pin 10a, the top link connecting pin, and the connecting plate 46 used in the rotary work machine for the link can be shared, a few parts of the first bracket 31 and the second bracket 41 are added. That's enough. Moreover, since the gauge wheel 56 which adjusts the height of a rotary working machine can be easily attached to the lower part of the mounting | wearing conversion apparatus 5, it becomes possible to change a tilling depth freely.

  Finally, the above-described embodiment according to the present invention describes the best mode of a mounting conversion device that can be used for a rotary working machine for a special three-point link as an embodiment. Note that can be diverted to work machines widely used in the field.

It is a side view in the state where the rotary work machine for special 3 point link attachment was connected to the tractor. It is a side view in a state where a mounting conversion device is mounted on a rotary working machine for mounting a special three-point link and is connected to a tractor via a standard three-point link. It is a side view of the rotary work machine single unit for special 3 point links attachment. It is a top view of the rotary working machine single unit for special 3 point links mounting. It is a side view in the state where a mounting conversion device is attached to a rotary working machine for mounting a special three-point link and converted to a rotary working machine for mounting a standard three-point link. FIG. 5 is a plan view showing a state in which a mounting conversion device is attached to a rotary working machine for mounting a special three-point link and converted into a rotary working machine for mounting a standard three-point link.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Rotary work machine 2 Tractor 3 Special 3 point link 4 Standard 3 point link 5 Mounting conversion device 10, 10 Lower link connection plate 10a Lower link connection plate pin 11 Top mast 11a Support hole 31 First bracket 32 First mounting plate 33 First 1 Extension plate 33a Perforation 41 Second bracket 42 Second mounting plate 43 Second extension plate 43a Support hole 46 Connection plate 56 Gauge wheel

Claims (2)

A mounting conversion device that is detachably attached to a rotary working machine, and that can be mounted by converting the rotary working machine into a standard three-point link and a special three-point link,
A pair of first brackets that are detachably fixed to a plate to which a lower link connecting pin is mounted when the special three-point link of the rotary working machine is mounted, and that has a hole for attaching the lower link connecting pin to a tip portion;
A second bracket having a support hole that can be detachably fixed to a top mast to which a top link connecting pin is attached when the special three-point link of the rotary working machine is mounted; ,
In the rotary working machine when the special three-point link is mounted, the top working mast is connected to the plate, and the connecting plate is capable of connecting the first bracket and the second bracket.
A wearing conversion device characterized by that. A support member fixed integrally to the first bracket;
A pair of adjustment members supported by the support member so as to be movable in the vertical direction and fixed to a predetermined position;
A gauge wheel rotatably supported at the tip of the adjustment member,
The wearing conversion device according to claim 1.

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