JP2017000114A - Tillage work machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tillage work machine capable of tilling tilled soil finely without requiring repeated tillage travel.SOLUTION: The tillage work machine includes: a tillage shaft 2 extended in a tillage width direction and supported pivotally so as to be driven rotatably; plural tillage jaws 3 arranged radially from the tillage shaft 2. The tillage jaw 3 is constituted by: an arm 3a extended in a radial direction from the tillage shaft 2; and a jaw 3b bent from an edge of the arm 3a and performing tillage actions with a predetermined action width w in a farm field. The tillage jaws 3 are arranged so that the action widths W of the tillage jaws 3 at rotation positions adjacent to each other in an axial direction of the tillage shaft 2 are superimposed with each other at least partially, thereby both jaws 3b act in and till a superimposed range.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a rotary type tilling machine that is attached to a work vehicle such as a tractor to plow a field.

  As shown in Patent Document 1, a rotary type tilling work machine arranges a plurality of tilling claws that work with a constant radius at equal intervals along the tilling axis, and each of the claw portions is equally spaced about the entire circumference of the rotation. There is known a technique that improves the left-right balance during tillage traveling and reduces vibration due to rotation by arranging at the angular position.

Japanese Patent Laid-Open No. 10-210801

  However, in the cultivation machine having the above-described configuration, when the cultivated soil must be finely cultivated by crops, for example, root vegetables such as carrots are hindered from growing by the soil mass, leading to a decrease in quality. In addition, a lot of time was required for the work of repeating the tillage traveling several times for the same place.

  An object of the present invention is to provide a tilling work machine capable of finely cultivating cultivated soil without requiring repeated tillage traveling.

  The invention according to claim 1 includes a tilling shaft (2) that extends in the tilling width direction and is rotatably supported, and a plurality of tilling claws (3) provided radially from the tilling shaft (2). The tilling claws (3 ...) are bent from the end of the arm part (3a) and the arm part (3a) in the radial direction from the tilling shaft (2), respectively, with a predetermined working width (W). In the tilling work machine composed of a claw portion (3b) that performs a tilling action, the tilling claw (3) is respectively connected to a tilling claw (3) at a rotational position adjacent to the axis of the tilling shaft (2). It is characterized in that at least a part of the working width (W) is arranged so as to overlap each other.

  The invention according to claim 2 is the invention according to claim 1, wherein the tilling claws (3) are arranged at different rotation angle positions with respect to the tilling shaft (2) between the adjacent tilling claws (3). It is characterized by becoming.

  The invention according to claim 3 is the invention according to claim 1 or claim 2, wherein the tilling claw (3) has the working width (W) from a base end position to a terminal position of the claw portion (3b). Opposed tilling claws that are formed in an inclined posture that brings the cultivated soil to one side and that are arranged opposite to each other so that the cultivating soil is concentrated at the center position of the cultivating action range, with the rotation positions adjacent to each other as a unit. A group (G) is formed, and the opposing tillage nail group (G) is formed at a plurality of positions.

  The invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein the plurality of tilling claws (3 ...) are different from each other in the rotational circumferential direction of the tilling shaft (2), etc. It is characterized by being arranged at a frequency division angle position.

  According to the first aspect of the present invention, the plurality of tilling claws (3 ...) are integrally rotated by the rotation drive of the tilling shaft (2), and the respective claw portions (3b) are placed on the field with a predetermined working width (W). The field is cultivated by plowing, and at this time, both cultivating claws (3, 3) are overlapped with respect to at least part of the overlapping range (W) of each of the adjacent two cultivating claws (3, 3). Can be cultivated and crushed finely.

  According to the invention according to claim 2, in addition to the effect of the invention according to claim 1, by arranging the adjacent tilling claws (3, 3) at positions shifted in the circumferential direction, both tilling claws (3, 3) ) Can be prevented and tillage can be ensured.

  According to the invention according to claim 3, in addition to the effect of the invention according to claim 1 or claim 2, during cultivation, the cultivation soil acts along the claw portion (3b) in the inclined posture by rotation of the cultivation claw (3). One tilling bank is formed for each group of opposing tilling claws (G) made up of a plurality of tilling claws (3...) That are brought to one side to the width (W) position and are arranged so as to collect tilling soil. Since the tilling full width is divided by the opposing tilling nail groups (G...) And a plurality of tilling embankments are formed, unevenness of tilling marks can be suppressed to be small.

  By the invention according to claim 4, in addition to the effect of the invention according to any one of claims 1 to 3, a plurality of tilling claws (3) are arranged at different angular positions at equal intervals in the rotation circumferential direction. Since the rotation imbalance can be kept small, vibration during the rotary work can be reduced and the tilling work can be performed satisfactorily.

Side view of the tillage work machine attached to the work vehicle Side view of the tillage machine with upright equipment Claw arrangement development of the tillage section developed about the tillage axis Circumferential layout of all tillage nails Side view of tilling claws in block units (ad) Claw arrangement development view of tillage part configuration example and cross section of tillage trace (ac) Nail arrangement partial development view of the variation of the tillage part (ad) Claw arrangement development view and cross-sectional view (a, b) of the configuration example of the tillage parts A1, A2 Claw arrangement development view and cross-sectional view (a to c) of the configuration example of the tillage parts A3 and A4 Axial expansion arrangement diagram (a, b) of tillage part of multiple tillage claw rotation configuration example Example of partial nail arrangement of tillage part with multiple rotation configuration (ac) Claw arrangement example development of tillage part of flange type configuration (ac)

Embodiments specifically configured based on the above technical idea will be described below with reference to the drawings.
As shown in FIG. 1, a side view of the tilling work machine 1 attached to the work vehicle is provided on the field with a fixed radius by a plurality of tilling claws 3 to be described later provided on the tilling shaft 2 connected to the chain transmission portion 2a. A plowing portion A having a pulverizing configuration with plowing action and covers 1a, 1b and the like covering both sides and a rear portion thereof are connected to the work vehicle 11 so as to be movable up and down by a lower link 12, a top link 13, etc. 14 receives rotational power.

  Further, in order to perform the upright work together with the tillage work, as shown in FIG. 2, a side view of the tillage work machine equipped with the upright equipment, the rear cover 1 b of the tillage work machine 1 is pulled up to shape both side surfaces and the upper surface of the work. The vertical machine 1c, which is performed together, is configured to be mountable.

  As shown in FIG. 3, the cultivating part A having a pulverized configuration has a plurality of sheath-like holders 2 b provided radially from the cultivating shaft 2 extending in the cultivating width direction as shown in FIG. 3. The tilling claws 3 are provided in a replaceable manner.

Each holder 2b ... is arrange | positioned in the rotational position which adjoins with the fixed pitch P about the axial direction of the tilling axis | shaft 2. As shown in FIG.
The tilling claw 3 is composed of an arm portion 3a extending in the radial direction via each holder 2b, and a claw portion 3b that is bent from the end thereof, extends in an arc shape with a predetermined action width W, and plows on the field. .

  The tilling claw 3 will be described in detail. The claw portion 3b is formed in an inclined posture in which the cultivation soil is moved to one side by the rotation of the arm portion 3a to the position of the one side operation width W, and then the axial direction of the tilling shaft 2 The action width W of each claw portion 3b is formed larger than the adjacent pitch P of the holders 2b... So that at least a part of each action width W overlaps with the tilling claw 3 at the rotation position adjacent to the holder c. .

  When the tilling shaft 2 is rotationally driven, the tiller portion A having the above-described configuration is driven to rotate integrally with the plurality of arm portions 3a extending in the radial direction from the tilling shaft 2, and the claw portions 3b each rotate. The base end position of the claw portion 3b that continues from 3a is plowed on the field, and gradually moves to the side as it rotates to move the cultivated soil to one side from the rotation position of the arm portion 3a to the position of the action width W. The field is cultivated so that it approaches, and the cultivating action position reaches the action range of the cultivating claw 3 at the adjacent rotation position.

  In this way, by configuring the working width W of at least part of the two tilling claws 3 and 3 at the rotation positions adjacent to each other to overlap each other, the claws 3b of both the tilling claws 3 and 3 in the overlapping range. , 3b can cultivate the field and finely pulverize the soil.

  In this case, the tilling claws 3 are arranged at positions shifted from each other in the rotational circumferential direction as different rotation angle positions with respect to the tilling shaft 2 with respect to the tilling claws 3 at the adjacent rotation positions. Contact can be prevented to ensure tillage.

(Opposite tillage nail group)
Further, with the plurality of tilling claws 3... Adjacent to each other as rotation units, the opposing tilling claws group G is formed by arranging them in an opposing posture so that the soil is concentrated at the center position of the cultivation action range. By dividing the total tillage width into a plurality of opposing tilling nail groups G, unevenness due to tilling embankment of tilling marks can be averaged.

  In the illustrated example, 52 tilling claws 3 are arranged at 45 rotational positions adjacent to each other at a constant pitch in the axial direction of the tilling shaft 2, and four or three places from the end of the shaft are arranged on the pawl portion 3a. Blocks having a uniform posture are formed, and an opposing tilling claw group G in which two adjacent blocks are opposed to each other is formed and arranged at a plurality of positions on the tilling shaft 2.

  Moreover, the two opposing tilling nail groups G and G adjacent to each other are configured such that the entire tilling width of the tilling portion A can be divided and tilled by overlappingly arranging the tilling claws 3 and 3 at a common rotational position.

  Further, each of the tilling claws 3 is arranged at equally divided angular positions different from each other in the entire turning area of the tilling shaft 2 as shown in FIG. However, in the same figure, each tilling claw is specified by the number of each rotation position from the shaft end of the tillage shaft 2 ("R" indicates the cultivation claws 3 arranged in duplicate at the same rotation position), and the angular position Is the position of the holder 2b which fixes each arm part 3a ....

  Specifically, as shown in FIGS. 5A to 5D, the side view of the block unit tillage nail is from No1 to No4 of the block 1 at the shaft end to No5 to No8 of the block 2 and No8R of the block 3. .. To No. 10 and No. 11 to No. 13 of the block 4, and similarly, all tillage claws 3... Are sequentially arranged at different equally divided angular positions up to the block 16 at the other shaft end.

  Moreover, with respect to the counter tilling nail group G constituted by the No. 1 to No. 8 tilling claws 3 of the block 1 and the block 2, the opposite tilling claws constituted of the No. 8R to No. 13 tilling claws 3 of the block 3 and the block 4 are arranged. The group G is adjacent to the No. 8 and No. 8R tilling claws 3 and 3 as a common rotational position, and the opposite tilling claws group G is adjacently configured in the same manner.

  Next, the action width of the tilling nail will be described in comparison with the nail arrangement development view of the cultivation part configuration example in FIG. 6 and the cross-sectional view of the tilling trace. 6 (a), the action width W0 of the claw portion 3b is equal to or less than the adjacent pitch P0. With this as a reference, the crushing configuration example shown in the claw arrangement development view of FIG. By setting the pitch P to P0 / 2, the soil mass is halved, and by setting the action width W to be twice as long as the adjacent pitch P, the soil mass to be cultivated is reduced to the standard rotary ratio 1 / 4 can be crushed. As shown in FIG. 6C, the unevenness of the tilling trace according to this pulverization configuration example can be reduced by the tilling embankment corresponding to the plurality of opposing tilling nail groups G.

  Compared with specific examples, as shown in FIG. 7 (a to d), the nail arrangement partial development view of the variation of the tillage portion is based on the standard rotary with the adjacent pitch P0 = 60 mm and the action width W0 = 60 mm. Is 30 mm, which is half of P0, and the working width W is 60, 90, 120, 150 mm, that is, 2, 3, 4, 5 pitch width, so that the standard rotary ratio is 1/4, 1/6. 1/8, 1/10 can be achieved.

  In addition to the above, for a variation in which the adjacent pitch P is 20 mm and the working width W is 40, 60, 100 mm, it is possible to achieve a ground breaking effect with standard rotary ratios of 1/6, 1/9, 1/15. it can.

(Multi-rotation configuration)
Next, a multiple rotation configuration in which a plurality of tilling claws 3 are provided at each rotation position of the tilling shaft 2 will be described.
FIG. 8 (a) shows an axial development of the tilling part A1, and this tilling part A1 has two tilling claws 4a and 4b provided at the respective rotational positions of the tilling shaft 2, and one tilling claw 4a has an action. By making the width Wa the adjacent pitch P and the other tilling claw 4b having the action width Wb twice as long as the adjacent pitch P, it is possible to ensure three times of tilling action at the same location.

  FIG. 8 (b) shows an axial development view of the tilling portion A2, and this tilling portion A2 has two rotation claws 5a and 5b provided at respective rotational positions of the tilling shaft 2 and their rotational diameters Ra, By making the difference between Rb long and short, the tilling claw 5a with a long rotation diameter Ra tills to a deep range, and the tilling claw 5b with a short rotation diameter Rb only cultivates only in a shallow range, thereby making the upper layer finer and lower layer lower Since it can be cultivated roughly, it is possible to form an optimum soil for planting vegetables.

  Moreover, Fig.9 (a) shows the axis line expanded view of tilling part A3, and this tilling part A3 is long-diameter on both sides of tilling part A3 about two tilling claws provided in each rotation position of tilling axis 2. The tilling claws 5a, 5a and the central part are the long and short diameter tilling claws 5a, 5b. It can be constituted by the tilling shaft 2.

  FIG. 9 (b) shows an axial development view of the tillage portion A4. The tillage portion A4 has a long-diameter central portion of the tillage shaft 2 with respect to the two tilling claws provided at each rotation position of the tillage shaft 2. By making the tilling claws 5a, 5a and the short-side tilling claws 5b, 5b on both sides, deep cultivation can be performed only in the central portion.

  Further, when the high tiller forming machine 1c is mounted on the tillage portion A4, as shown in the sectional view of the forming rod in FIG. 9 (c), the central portion has the long diameter tilling claws 5a and 5a, and both side portions have the short diameter. The depth H2 at which the root vegetables grows by cultivating the central portion deeper than the bottom of the paddle, exceeding the forming height H1 by the vertical machine 1c by plowing with the cultivating part A4 as the cultivating claws 5b, 5b. Can be molded.

  Next, the tilling action of the tilling nail in the case of a multi-rotation configuration will be compared and explained with reference to the axial development arrangement diagram of FIG. 10. As shown in FIG. As shown in FIG. 10 (b), when the action width W0 of the claw portion 3b of the rotary configuration is equivalent to the adjacent pitch P0 and the double-action tillage is used as a comparison reference, the adjoining pitch P is set to P0 / 2 as shown in FIG. Furthermore, when the action width W is twice as long as the adjacent pitch P, the four-time tillage is possible.

  Comparing variations of multiple rotation configurations with specific examples in which the adjacent pitch is common, the standard rotary has a claw arrangement partial view as shown in FIG. 11 (a), with an adjacent pitch P0 = 69 mm and an action width W0 = 69 mm. Plowing is performed twice, while the action width W is twice or three times the adjacent pitch P. As shown in FIG. 11B and FIG. It becomes possible to plow.

(Flange type configuration)
Next, in the case of a flange-type configuration in which a plurality of tilling claws are provided via flanges at respective rotational positions of the tillage shaft 2, the tilling action of the tilling claws will be described in comparison with the standard configuration. As shown in FIG. 12 (a), the nail arrangement development view shows that when two tilling claws 3 and 3 having an action width W0 of the nail portion 3b half of the adjacent pitch P0 are provided, a single action tillage is performed. .
In addition, when four or six tilling claws 3 are provided on each flange 2c, two-time and three-time tilling is performed.

As shown in FIG. 12 (b), the developed view of the claw arrangement example 1 with respect to the standard rotary is operated twice by setting the action width W to be 1 time longer than the adjacent pitch P, and the standard rotary ratio is 1 / 2 tillage is possible.
In addition, when four or six tilling claws 3 are provided on each flange 2c, four-time and six-time tilling is possible.

  Subsequently, as shown in a developed view of the nail arrangement example 2 in FIG. 12 (c), the action width W is set to 1.5 times the adjacent pitch P, so that the three-time tillage is possible, and the standard rotary ratio 1/3 can be cultivated, and when four tilling claws 3 are provided on each flange 2c, six times of action can be achieved, and when six tilling claws 3 are provided, nine times of tilling are possible. Become.

DESCRIPTION OF SYMBOLS 1 Tillage working machine 2 Tillage axis 2b Holder 3 Tillage claw 3a Arm part 3b Claw part G Opposite tillage claw group P Rotation position pitch W Action width

Claims (4)

A cultivating shaft (2) that extends in the cultivating width direction and is rotatably supported, and a plurality of cultivating claws (3 ...) provided radially from the cultivating shaft (2), the cultivating claw (3 ...) Are each an arm portion (3a) extending in the radial direction from the tilling shaft (2) and a claw portion (3b) which is bent from the end of the arm portion (3a) and plows on the field with a predetermined operating width (w). )
The tilling claw (3) is arranged such that at least a part of each working width (W) is overlapped with each other between the tilling claw (3) at the rotational position adjacent to the axis of the tilling shaft (2). A tilling machine characterized by   The said tilling nail | claw (3) arrange | positions in the rotation angle position mutually different about the said tilling axis | shaft (2) between the said adjacent tilling nail | claw (3), The tilling operation | work of Claim 1 characterized by the above-mentioned. Machine.   The tilling claw (3) is formed in an inclined posture in which the working width (W) extends from the proximal end position to the distal end position of the claw portion (3b), and the rotation position is adjacent to each other. Using the tilling claws (3) as a unit, an opposing tilling nail group (G) is formed so as to be opposed so that the soil is concentrated at the center of the range of the tilling action. The tillage working machine according to claim 1 or 2, wherein the tilling work machine is formed into a shape. The plurality of tilling claws (3 ...) are arranged at equally divided angular positions different from each other in the rotational circumferential direction of the tilling shaft (2). Tillage working machine according to crab.

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