JP2012200174A - Plowing implement - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plowing implement that allows a mulching plate to be easily attached to and removed from an implement body, while saving the trouble of going to a warehouse or the like to take the mulching plate when installing the mulching plate.SOLUTION: A soil puddling machine 1 is mounted in the rear of a traveling machine body having wheels and capable of traveling, and moves to plow a field while rotating a plowing rotor 13 as the traveling machine body travels forward. The implement body 5 rotatably supporting the plowing rotor 13 is provided with a mulching plate 50 capable of pulling earth over a recess formed in the surface of the field by the passage of the wheels of the traveling machine body. The mulching plate 50 is selectively removably installed in either an mulching position Ps of the implement body 5 where it is installed when pulling earth over the recess, or a storage position Pk of the implement body 5 where it is installed when the mulching plate 50 is stored in the implement body 5.

Description

  The present invention relates to a tilling work machine that advances a field while rotating a tilling rotor to plow a field.

  For example, as described in Patent Document 1, such a tilling work machine is attached to the rear part of a traveling machine body that has wheels and can travel, and allows the traveling machine body to travel forward while rotating the tilling rotor. Along with this, there is a tiller working machine for plowing to plow the field.

  This tillage working machine has an apron (leveling body in the literature) supported on the rear end of the shield cover that covers the top of the tillage rotor, and a vertical end on the apron. A leveler connected to each other, and the aprons and levelers level the surface of the field.

  However, in this tillage work machine, when the traveling machine body travels in the field, the tire marks of the traveling machine body are formed in the field and the soil is displaced, and the leveling work by the apron and the leveler may be insufficient. .

  In view of this, this tilling work machine is provided with a shredder plate that rotatably supports the tilling rotor and moves the soil to the lower part of the transmission case that transmits the driving force.

JP 2005-110613 A

  Since this mulch plate is attached to the transmission case via a plurality of bolts, if the mulch plate is not required depending on the field, it is necessary to remove the plurality of bolts from the transmission case. When attaching to the head, it is necessary to fasten a plurality of bolts. The work of attaching and detaching the plurality of bolts is troublesome for the operator. The removed mulch board is stored in a warehouse or the like, but it is troublesome to go to the warehouse or the like when necessary.

  The present invention has been made in view of such a problem, and the evacuation plate can be attached to and detached from the machine body without bothering the operator, and when the evacuation plate is attached, the evacuation plate is taken to a warehouse or the like. An object is to provide a tilling machine that does not bother you.

  In order to solve such a problem, the tillage working machine of the present invention (the shaving work machine 1 in the embodiment) is attached to the rear part of the traveling machine body that has the traveling device (the tire 90a in the embodiment) and can travel. A recess formed on the surface of the field by passing the traveling device of the traveling machine body in the machine body that rotates as the traveling machine body advances while the traveling machine body rotates and cultivates the farm field and rotatably supports the tilling rotor. (Tire mark A in the embodiment) A tilling work machine provided with a digging plate capable of collecting soil, the mulching plate being arranged when the soil is moved to the recess, The board is selectively detachably mounted at a storage position of the body to be mounted when the plate is stored in the body (Claim 1).

  Further, the present invention is characterized in that a mounting receiving portion having the same shape for detachably mounting a mulching plate is provided at the squeezing position and the storage position of the airframe (claim 2).

  Further, the present invention is characterized in that the mounting receiving portion provided at the earthing position is a stand mounting seat to which a stand for supporting the airframe is attached (Claim 3).

  Furthermore, the stand mounting seat of the present invention has a support plate that protrudes forward from the airframe in the traveling direction and is provided with an engaged portion (engagement recess 45a in the embodiment) on the upper portion. A pair of projecting plates arranged side by side with a gap into which the support plate can be inserted on the surface opposite to the surface on which the soil of the plate-shaped portion is approached (back surface 53d in the embodiment), An engaging portion (shaft portion 51 in the embodiment) laid between the ends on one side of the pair of protruding plates, and an elastic body (leaf spring in the embodiment) provided between the other sides of the pair of protruding plates 58), and the earthing plate is held by the support plate inserted between the pair of protruding plates on the other side of the earthing plate via the elastic body with the engaging portion locked to the engaged portion of the supporting plate. And mounted on a support plate (claim 4).

  According to the tillage working machine according to the present invention, the mulching plate is selected as the mulching position of the machine body that is mounted when the soil is moved to the recess, and the storage position of the machine body that is mounted when the mulching plate is stored in the machine body. A cultivating work machine that can be easily attached to the machine without bothering the operator and that does not bother to go to the warehouse etc. Can be provided.

The side view of the working machine main body of the scribing work machine provided with the shredder board concerning one Embodiment of this invention is shown. A plan view of this shaving machine is shown. The fragmentary top view of the scuffing machine for demonstrating the earthing position and the storage position is shown. FIG. 2A is a plan view of the lining plate, FIG. 2B is a side view of one side of the lining plate, and FIG. 1C is a side view of the other side of the lining plate. FIG. 6D is a front view of the lining plate.

  Hereinafter, a preferred embodiment of the present invention will be described with reference to FIGS. The tillage working machine according to the present invention is described with respect to a shaving work machine that is an example of a tilling work machine, and in particular, an example in which left and right work bodies are provided on both sides of the work machine body so as to be folded and unfoldable. To do.

  As shown in FIG. 1 (side view) and FIG. 2 (plan view), the substitute working machine 1 is attached to the rear part of the traveling machine body 90 and advances along with the forward traveling of the traveling machine body 90 to perform the writing work. The working machine main body 2 disposed at the center in the left-right direction with respect to the forward direction of the machine, and the left working body 20L and the right working body 20R attached to the left and right ends so as to be vertically rotatable, The work machine body 2, the left work body 20L, and the right work body 20R form a three-part structure.

  The work machine body 2 is connected to a front part of a machine body 5 having a main frame 3 extending in the left-right direction, and a three-point link coupling mechanism (not shown) provided at the rear part of the travel machine body 90 is connected to the rear part of the travel machine body 90. On the other hand, it is mounted so that it can be lifted. A gear box 6 having an input shaft 6a protruding forward is provided at the center in the left-right direction of the main frame 3, and power is input from the PTO shaft of the traveling machine body 90 through a power transmission means such as a universal joint to the input shaft 6a. To be communicated to.

  A transmission frame (chain case) 8 and a side frame 9 are suspended from the left and right ends of the main frame 3, and a number of tilling claws are attached between the transmission frame (chain case) 8 and the lower portion of the side frame 9. The tilling rotor 13 is rotatably supported. A transmission mechanism is provided in the main frame 3, and this transmission mechanism is coupled to a transmission mechanism in the transmission frame (chain case) 8, so that the power transmitted to the input shaft 6 a is transmitted to the work machine via these transmission mechanisms. The power is transmitted to the tilling rotor 13, the left working body 20L, and the right working body 20R of the main body 2, and the tilling rotor 13, the left working body 20L, and the right working body 20R of the working machine body 2 are provided to the tilling rotor. The rotor is configured to rotate in a predetermined direction.

  A shield cover 10 is provided between the transmission frame (chain case) 8 and the side frame 9 to cover the top of the tilling rotor 13. A first leveling plate 11 is attached to the rear end portion of the shield cover 10 so that the front end portion is rotatably attached in the vertical direction and the rear side extends obliquely downward. The rear end portion of the first leveling plate 11 cultivates the soil. The surface is leveled. A second leveling plate 12 is attached to the rear end portion of the first leveling plate 11 so as to be rotatable in the vertical direction, and the cultivated soil surface of the field is leveled by the second leveling plate 12.

  As shown in FIGS. 1 and 3, brackets 16 extending forward in the traveling direction are provided at both ends of the main frame 3 of the work machine body 2. A stand attachment seat 40 for attaching a stand or an earthing plate 50 to be described later is provided at the tip of the bracket 16. When the traveling machine body 90 travels in the farm field, the tire marks A (see FIG. 2) of the tires 90a of the traveling machine body 90 are formed in the farm field, and the soil is offset. When attached, the soil surface can be leveled by returning the side of the soil by the earthing plate 50. Hereinafter, the position of the stand mounting seat 40 with respect to the airframe 5 will be referred to as “earthing position Ps”. In this embodiment, the brackets 16 are provided at both ends of the main frame 3, but this is a position that takes into account the size of the traveling machine body 9 to which the work machine body 2 is mounted. It is not limited to both ends.

  The stand mounting seat 40 is disposed with a predetermined interval in the left-right direction, protrudes forward and extends in the up-down direction, and between the rear end portions of the support plates 41, 41 ′. It has the board | substrate 42 to connect, and is formed in the reverse U shape in the front view. The pair of support plates 41 and 41 ′ have substantially the same shape and are formed in a rectangular shape in a side view. An arcuate engagement concave portion 41a (engaged portion) for latching the shaft portion 51 (engagement portion) of the earthing plate 50 is provided on the upper portions of the support plates 41 and 41 ′.

  On the shield cover 10 above the stand mounting seat 40, a mounting receiving portion 45 having the same shape as the stand mounting seat 40 is provided. The mounting receiving portion 45 is disposed so that the engaging recess 41a is positioned on the side of the work machine body 2 in the left-right direction, and the pair of support plates 46, 46 ′ extend in the left-right direction. When the earth retaining plate 50 is attached to the attachment receiving portion 45, the earth retaining plate 50 can be stored in the machine body 5 of the substitute working machine 1. Hereinafter, the position of the mounting receiving portion 45 with respect to the machine body 5 is referred to as a “storage position Pk”. The mulching plate 50 is selectively mounted at the digging position Ps and the storage position Pk. Details of the lining plate 50 will be described later.

  The left and right ends of the work implement body 2 are provided with shaft portions 14 extending in the front-rear direction at positions above the shield cover 10, and the left work body 20 </ b> L and the right work body 20 </ b> R rotate up and down around the shaft portion 14. It is provided freely. An electro-hydraulic hydraulic cylinder 15 is provided between the work machine main body 2 and the upper part of the left working body 20L and the right working body 20R via a rotating plate 17 rotatably provided on the shaft portion 14. By the expansion and contraction of the cylinder 15, the left working body 20L and the right working body 20R are expanded to the upper side of the working machine body 2, and the left working body 20L and the right working body 20R are deployed to the side of the working machine body 2. It moves between the development positions Pt (see FIG. 2).

  As shown in FIG. 2, the left working body 20L and the right working body 20R have a symmetrical structure. When the left working body 20L is described, side frames 22L and 23L are arranged on both the left and right sides. A tilling rotor is rotatably supported between the lower portions of the portion frames 22L and 23L, and a shield cover left 24L is provided between the upper portions of the side frames 22L and 23L to cover the upper portion of the tilling rotor. The first leveling plate left is attached to the rear end of the shield cover left 24L so as to be rotatable in the vertical direction, and the second leveling plate left is freely rotatable in the vertical direction at the rear end of the first leveling plate. It is attached.

  The first leveling plate left and the second leveling plate left are hooks that are joined to the first leveling plate 11 and the second leveling plate 12 of the work machine body 2 and interlocked with the rotating plate 17 when the left working body 20L is deployed. 18 (see FIG. 3), and when the left working body 20L is folded, the connection of the hook 18 is released, and the left of the first leveling plate and the left of the second leveling plate are separated from the outer end portion of the work machine body 2. Thus, the joint between the first leveling plate 11 and the second leveling plate 12 is released.

  As shown in FIG. 4 (a) (plan view), FIG. 4 (b) (left side view), FIG. 4 (c) (right side view), and FIG. 4 (d) (front view), The plate-like portion 53 that draws the soil, and the gap 57 into which the stand mounting seat 40 and the support plate 41 of the mounting receiving portion 45 can be inserted on the back surface 53d opposite to the surface of the plate-like portion 53 that draws the soil. A pair of projecting plates 55 and 56 arranged side by side, and a shaft portion 51 laid between ends of one side in the longitudinal direction of the pair of projecting plates 55 and 56 and the other side in the longitudinal direction of the pair of projecting plates 55 and 56 And a plurality of leaf springs 58 disposed therebetween.

  The plate-like portion 53 is formed in a substantially rectangular shape in plan view with a notch 53c formed in a corner portion on one side. The pair of protruding plates 55 and 56 are arranged from one end side to the other end side of the plate-like portion 53 along the long side 53a of the plate-like portion 53 opposite to the side where the notch 53c of the back surface 53d of the plate-like portion 53 is provided. Are provided. These protruding plates 55 and 56 are attached to the rear surface 53d with an inclination angle θ (about 70 ° in the drawing) (see FIG. 4D). A shaft portion 51 extending in a direction orthogonal to the protruding plates 55 and 56 is inserted into the upper part of one end side in the longitudinal direction of the pair of protruding plates 55 and 56. For this reason, the plate-like portion 53 is inclined with respect to the shaft portion 51 with an inclination angle α (90 ° −θ °). Accordingly, when the shaft portion 51 is held horizontally, the plate-like portion 53 is inclined with the inclination angle α. The inclination angle α of the plate-like portion 53 is determined in consideration of the traveling speed of the traveling expectation 90, the function of bringing soil, and the like.

  The height of the protruding plates 55 and 56 is formed such that the shaft portion side is higher than the longitudinal direction of the protruding plates 55 and 56 and the side away from the shaft portion 51 is temporarily lowered. A leaf spring 58 extending toward the plate-like portion 53 is fixed to the inner surface of the protruding plate 56 disposed on the inside by bolts and nuts. The leaf springs 58 are provided at two locations on the shaft portion 51 side in the longitudinal direction of the protruding plate 56 and the side away from the shaft portion 51. The leaf springs 58 are not limited to two places, and three or more places may be provided, and one wide leaf spring may be provided.

  The leaf spring 58 is bent to the side of the protruding plate 55 disposed on the outer side, and extends to a position close to the protruding plate 55 (see FIG. 4D). For this reason, when the support plate 41 of the stand mounting seat 40 is inserted between the pair of projecting plates 55 and 56, the leaf spring 58 is elastically deformed, and the earthing plate 50 can be held on the support plate 41.

  When mounting the earthing plate 50 at the earthing position Ps, first, as shown in FIGS. 1 and 3, the shaft portion 51 of the earthing plate 50 is latched to the engaging recess 41 a of the support plate 41 of the stand mounting seat 40. To do. Then, the support plate 41 inserted between the pair of projecting plates 55 and 56 of the mulching plate 50 is rotated around the shaft portion 51 toward the stand mounting seat 40 side. The protrusions 55 and 56 are held via the leaf spring 58. Therefore, the shaft portion 51 side of the mulching plate 50 is supported by the engaging recess 41a, and the other side of the shaft portion 51 of the mulching plate 50 is held by the support plate 41 via the leaf spring 58, so that the mulching plate 50 is supported by the stand. It can be attached to the mounting seat 40.

  Therefore, in order to mount the earthing plate 50 at the earthing position Ps, after the shaft portion 51 of the earthing plate 50 is hooked on the engaging recess 41a, the earthing plate 50 is rotated around the shaft portion 51 toward the stand mounting seat 40 side. It is only necessary to perform the operation to move. For this reason, the operation | work which mounts the mulching board 50 in the digging position Ps is easy, and the installation work of this mulching board 50 does not bother an operator.

  On the other hand, in order to remove the earth retaining plate 50 mounted at the earth retaining position Ps from the stand mounting seat 40, the other side of the earth retaining plate 50 is rotated in the direction away from the stand mounting seat 40 around the shaft portion 51 to be supported. The holding | maintenance of the other side of the earthing board 50 with respect to the board 41 is released, and the axial part 51 of the earthing board 50 is removed from the engagement recessed part 41a.

  Therefore, when removing the earthing plate 50 from the earthing position Ps, an operation of rotating the earthing plate 50 away from the stand mounting seat 40 about the shaft portion 51 to remove the shaft portion 51 from the engaging recess 41a. Just do it. For this reason, the work of removing the earthing board 50 from the earthing position Ps is easy, and the work of removing the earthing board does not bother the operator.

  Further, in the substitute working machine 1 of the present invention, as shown in FIG. 3, the shield cover 10 is provided with a mounting receiving portion 45 having the same shape as the stand mounting seat 40. For this reason, when the mulch plate 50 is not used, the mulch plate 50 can be mounted on the mounting receiving portion 45 and stored in the substitute working machine 1. For this reason, when using the mulching plate 50, the mulching plate 50 mounted at the storage position Pk may be removed and mounted at the digging position Ps, thereby eliminating the troublesomeness of taking the mulching plate 50 to a warehouse or the like. can do.

  In the above-described embodiment, the traveling machine body 90 includes the tire 90a that can travel, but a traveling machine body having a crawler type traveling device instead of the tire 90a may be used.

  Further, in the above-described embodiment, the mounting receiving portion 45 is provided on the shield cover 10 above the earthing position Ps. However, the position at which the mounting receiving portion 45 is provided is not limited to this position, and the mounting receiving portion is provided during the scraping operation. The position 45 does not obstruct, and even if the left working body 20L or the right working body 20R is moved to the folded storage position, there is no possibility that the mounting receiving portion 45 may come into contact with these working bodies. For example, the mounting receiver 45 may be provided at any position on the machine body.

  Furthermore, in the above-described embodiment, the left working body 20L and the right working body 20R have been exemplified as the substitute working machine 1 having a structure in which the left working body 20L and the right working body 20R can be folded with respect to the working machine body 2. It is also possible to use a grabber working machine that is configured such that the extension leveling plate left and the extension leveling plate right are rotatably attached to the end of the work machine body 2 in the width direction.

1st shaving machine (cultivation machine)
5 Airframe 13 Tilling rotor 40 Stand mounting seat 45 Mounting receiving portion 45a Engaging recess (engaged portion)
46, 46 'Support plate 50 Digging plate 51 Shaft (engagement portion)
53 Plate-like part 53d Back surface (surface)
55, 56 Protruding plate 57 Clearance 58 Leaf spring (elastic body)
90 traveling machine body 90a tire (traveling device)
A tire mark (concave)
Pk storage position Ps Earthing position

Claims (4)

A machine body that is mounted on the rear part of a traveling machine body that has a traveling device and that can travel, and that advances as the traveling machine body advances while rotating the tilling rotor, tills the field, and rotatably supports the tilling rotor. In addition, a tilling work machine provided with a shredder plate capable of bringing soil into a recess formed on the field surface by passing the travel device of the travel machine body,
The earthing board can be selectively attached to and detached from the earthing position of the airframe to be attached when the earth is brought into the recess and the storage position of the airframe to be attached when the earthing board is stored in the airframe. Tillage work machine characterized by being mounted.   The tilling work machine according to claim 1, wherein an attachment receiving portion having the same shape for detachably attaching the earthing board is provided at the earthing position and the storage position of the machine body.   The tilling work machine according to claim 2, wherein the mounting receiving portion provided at the earthing position is a stand mounting seat to which a stand for supporting the machine body is attached. The stand mounting seat has a support plate that protrudes forward in the direction of travel from the aircraft and has an engaged portion on the top.
The earthing plate is a pair of projecting plates arranged side by side with a plate-like portion that draws soil, and a gap that allows the support plate to be inserted into a surface on the opposite side of the plate-side portion of the plate-like portion. And an engaging portion laid between one end portions of the pair of protruding plates, and an elastic body provided between the other sides of the pair of protruding plates,
The earthing plate is held via the elastic body on the support plate in which the engaging portion is locked to the engaged portion of the supporting plate and the other side of the earthing plate is inserted between a pair of protruding plates. The tilling work machine according to claim 3, wherein the tilling work machine is attached to the support plate.

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