JPH04110401U - Work equipment attachment device for rotary tilling section - Google Patents

Abstract

(57) [Summary] (with amendments) [Purpose] To provide a work equipment mounting device for a rotary tiller section, which allows once the rear cover position is set, and thereafter the rear cover and the work equipment can be set in an inseparable relationship. . [Configuration] The work machine attached to the rear of the rotary tiller is
It is attached to a mounting hitch provided at the rear of the rotating frame, and the upper end of the rear cover is moved together with the rotating frame that pivots. [Effect] Once the rear cover position is set by moving the rotating frame back and forth, the rear cover and the working machine can be changed from now on as they are inseparable.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention uses a rotating frame that is movable back and forth along the curved surface of the main cover. It is connected to a rotary tiller with the upper end of the rear cover pivoted at the rear end, and rotates the work equipment. Construction of a rotary tiller that is attached to a mounting hitch attached to the rear of the frame. Regarding industrial machine mounting equipment.

0002

[Conventional technology]

Conventionally, as a rear cover vertical adjustment structure for a rotary tiller, the rear cover was placed at the rear end. Move the main cover, which pivots at the top end, back and forth along an arc trajectory centered on the rotary shaft. Those with a rotatable and fixed support structure are already known. This known rear cover vertical adjustment structure can be used not only for the rear cover but also for the main cover. Since it also adjusts its movement, it requires a strong support structure and requires a large amount of power. Because of this drawback, the rotating frame that can be moved and fixed along the main cover is The rear end has a rotating frame that supports the upper end of the rear cover and allows for easy movement. A system-based system has also been proposed. In this type, the rotating frame is attached to the main cover. By moving the bar forward and backward along the curved surface, the rear cover position can be moved up and down. The plowing depth of the rotary plowing section can be set.

0003 This rotary tiller is generally attached to an agricultural tractor via a three-point linkage mechanism. However, the switching valve of the hydraulic lifting mechanism that raises and lowers this three-point linkage mechanism and the rear cover are A known automatic plowing depth control device is interposed between the bar and the tillage depth control device, which is based on the angular displacement of the rear cover. By switching the switching valve, the entire rotary tilling section is raised and lowered, and the tillage depth is controlled to be approximately constant. It is becoming more and more common.

0004 In a rotary tiller equipped with this automatic tillage depth control device, the rotation trajectory of the tiller claws Since the rear cover is structured to angularly displace around the upper fulcrum, shallow plowing is possible. In this case, the rear cover will be too close to the rotational trajectory of the tiller claws, so extend the rear cover downward. Also, when plowing deeply, the rear cover will be too far away, so it should be pointed upwards. It has become a shortened form. (Tailwheel-type robots that do not have this automatic tillage depth control device) The same goes for the tillage section. ) In addition, the rotary tiller has a tool bar for attaching work equipment that extends toward the rear. For example, seeder, compaction roller, grading carrier, ridge Attach auxiliary work equipment such as vertical tools and shaping mulchers, and install each at the same time as rotary tilling. You can perform multiple banding tasks.

[0005]

[Problem that the invention attempts to solve]

By the way, in order to make this method even more convenient, the above-mentioned rotating frame format has been proposed. Regardless of the proposed plan, working equipment attached to the rear of the rotary tiller is still It is attached to a well-known toolbar. The work equipment attached to this toolbar is Even if the set position of the rear cover changes due to rotation of the rotation frame, it will not synchronize with this. Since the rear cover remains fixed in the same position without changing, the rear cover is not set. Reset each time according to the standard height position of the ground surface (sensing neutral position). However, there was a problem in that the operation was extremely troublesome.

[0006] Therefore, in view of the above-mentioned conventional situation, this invention was devised to solve the problem. The hitch for mounting the work equipment can be moved back and forth by supporting the upper end of the rear cover. By providing it at the rear end of the movable rotating frame, it is possible to operate the rotating frame back and forth. Once the rear cover position is set, the rear cover and work machine will be aligned from then on. To provide a work equipment mounting device for a rotary tiller part whose setting can be changed due to an inseparable relationship. This is the purpose of implementation.

[0007]

[Means to solve the problem]

The present invention achieves the above object by moving the main cover 1 back and forth along the curved surface. At the rear end of the rotary frame 15 provided in the In the tilling part R, the working machine S attached to the rear of the rotary tilling part R is Attach it to the mounting hitch 25 provided at the rear of the frame 15, and attach it to the top of the rear cover 2. It is moved integrally with a rotating frame 15 that pivotally supports the end.

[0008]

[Effect]

Therefore, the rotating frame is provided so that it can rotate back and forth along the curved surface of the main cover 1. The mounting hitch 25 is attached to the rear of the rotation frame 15 by effectively utilizing the frame 15. It will be done. Attach the work machine S to be attached to the rear of the rotary tiller R to this mounting hitch 25. As a result, the rotating frame 15 that pivots the support shaft 24 of the rear cover 2 and the mounting hitch 2 The work machine S attached to 5 moves together.

[0009] Therefore, the rear cover 2 position can be set once by operating the rotating frame 15 back and forth. If you do so, you can change the set from now on as the rear cover 2 and work machine S are inseparable. be done. In addition, the rotary tiller R is connected to an agricultural tractor T equipped with an automatic tillage depth control device. In this case, the automatic tilling depth control device adjusts the working machine according to the tilling depth of the rotary tilling section R. The working depth is also controlled to be approximately constant.

0010

【Example】

Hereinafter, drawings showing the present invention as an embodiment will be explained. As shown in Figure 1, agricultural There is a top on the rear of the transmission case M that makes up the monokotsuk body of the tractor T. A three-point link mechanism consisting of a link 39 and a lower link 40 is connected, and the three points A rotary tiller R is connected to the rear of the link mechanism. In addition, the above-mentioned mission The rear of the SM is equipped with a hydraulic lifting mechanism (not shown) consisting of a hydraulic cylinder and a piston. and swings vertically around the drive shaft driven by this hydraulic lifting mechanism. A lift arm 41 is provided between the lift arm 41 and the approximately intermediate portion of the lower link 40 in the longitudinal direction. It is pivotally connected by a grout 43, and when the lift arm 41 is driven, the load is lifted. The tiller R moves up and down. This hydraulic lifting mechanism includes a switching valve (not shown) and a rotor (described later). A known automatic tillage depth control mechanism is interposed between the rear cover 2 and the tillage section R. The rear cover 2 serves as a plowing depth sensor.

[0011] In addition, the rotary tiller R has a main cover that covers the upper surface side of the rotation locus K by the tiller claws. It is equipped with a bar 1 and a rear cover 2 that covers the rear side, and the side side is covered with a side cover 3. ing. A tool bar 5 is provided that extends rearward from the rear of the gear case 4, and then By attaching various working machines S to the end, it is possible to carry out work associated with rotary tilling. to A toolbar adjustment screw 7 is pivotally supported between the toolbar mast 6 and the toolbar 5, and is used for adjustment. By turning the handle, you can arbitrarily position the work machine S relative to the rotary tiller R. Can be changed.

0012 The power of the agricultural tractor T is generated by driving the rear wheels on the one hand while driving the tractor on the other hand. Cultivation is carried out from the PTO shaft via the gear case 4 and chain case 8 of the rotary tiller R. The soil is tilled by driving the section 9. As shown in FIG. It is constructed separately from the frame 10, and on the outside of the main cover 1 there are paired front and rear panels. The bracket 13 which supports the guide roller 11 on the horizontal shaft 12 is spaced apart in the horizontal direction. There are multiple sets available. As shown in FIGS. 4 and 5, the guide roller 11 Guided by it, it moves back and forth along the arcuate curved surface of the main cover 1, and pairs up on the left and right sides. The rail frames 10 of the By connecting the horizontal frame 14 in the horizontal direction, the rotating frame shown in FIG. The system 15 is integrally constructed. On the rear surface of this horizontal frame 14, there is a A bearing portion 16 that rotatably supports a support shaft 24 provided at the end is fixed.

[0013] As shown in FIGS. 1 and 2, the top mast 6 and the horizontal frame 14 are approximately centered in the longitudinal direction. An electric cylinder 19 and a ram 20 are installed between the brackets 17 protruding from the Since a drive mechanism is interposed to move the moving frame 15 back and forth, the ram When the length of 20 is extended, the rotating frame 15 moves rearward and the rear cover 2 lowers. The plowing depth can be set shallow, and conversely, when it is shortened, the rotating frame 15 moves forward and the rear Bar 2 rises, allowing you to set a deeper plowing depth.

[0014] As shown in FIGS. 2 and 3, the upper surface of the rail frame 10 and the horizontal frame 14 are also A pair of left and right rod support brackets 21 facing each other are fixed to each other and are aligned on the same line. A hanging rod 23 is installed between the hanging rod receiver 22 provided on the rear cover 2 side of the Since it is arranged so that it can be expanded and contracted, when the hanging rod 23 is extended, the rear cover 2 will be moved to the upper part. Rotates around the support shaft 24 of the rod, closes the angle and increases the resistance of the soil, and the hanging rod 23, the angle of the rear cover 2 opens to make it easier for soil to escape. The rod 23 has respective springs that urge the rear cover 2 downward at a predetermined pressure. ring 28 is attached.

[0015] Further, as shown in FIG. 7, on the rear surface of the horizontal frame 14, there is a A mounting hitch 25 to be installed is fixed via a connecting bracket 26, and this mounting hitch 25 by attaching the front hitch 27 of each work machine S to the hitch pin 29. and each work machine S is attached to the rear of the rotating frame 15 that can be moved back and forth. I can do it. In the embodiment, an example is shown in which the mounting hitch 25 is fixed to the rear surface of the horizontal frame 14. However, this mounting hitch 25 may be provided on the horizontal frame 14 in a detachable manner. It is something.

[0016] Additionally, a detection mechanism J on the rail frame 10 connected to the rear cover 2 and a lift A known plowing depth automatic control is provided between the switching valve of the hydraulic lifting mechanism that lifts and lowers the toe arm 41. Since a device (not shown) is installed, the plowing depth will be deeper than the preset depth and the rear cover will be removed. -2 swings backwards by a predetermined angle around the support shaft 24, it will be cut in conjunction with this. The switching valve is switched to the upward side, the rotary tilling section R rises, and the set tilling depth is maintained. However, on the contrary, the plowing depth becomes shallower than the set plowing depth, and the rear cover 2 is centered around the support shaft 24. When it swings forward by a predetermined angle, the switching valve is switched to the downward side in conjunction with this. The rotary tiller R descends and the set tillage depth is maintained. This work equipment mounting device It can also be used in tail wheel type rotary tillers that do not have an automatic tillage depth control device.

[0017] As shown in Fig. 8, when the seeding machine 30 is attached to the mounting hitch 25, the plowing depth detection sensor The rotor is controlled by an automatic plowing depth control device that makes effective use of the rear cover 2 constructed on the sensor. The plowing depth and sowing depth (working depth) of the re-tilling section R can be controlled to be approximately constant, improving the germination rate. In addition, the mounting position can be set forward from the rear end of the tool bar 5. The lack of lift in the point linkage mechanism can also be resolved at the same time.

[0018] Furthermore, as shown in FIG. 9, by attaching the pressure roller 31 to the mounting hitch 25, It is possible to carry out taming work such as soiling, wheat filtration, and land leveling. In this case, the rubber plate 44 and The cover 2 is removed and the ram 20 of the electric cylinder 19 is expanded and contracted by manual operation. Move the pressing roller 31 on an arcuate trajectory in the direction of the arrow shown in the figure within the range where the tilling claws do not touch the ground. By moving , you can move up and down and back and forth steplessly. This pressure roller The lack of lift in the three-point linkage mechanism can be overcome by moving the 31 back and forth, and the vertical movement The degree of suppression can be made stronger or weaker.

[0019] As shown in Figure 10, the rear cover 2 is removed and the ground leveling carrier 32 is installed. By attaching it to 25, you can level the land at the same time as the tilling work by the rotary tiller R. can be done. In this case, the rubber plate 44 attached to the rear end of the main cover 1 This prevents soil from scattering backwards, and by removing this rubber plate 44, the ground leveling carrier 32 can be used as a single unit. It can also be used. Also, when installing the ground leveling carrier 32, it is necessary to attach it to the horizontal frame 14. The mounting hitch 25 to be attached is a ground leveling carrier different from the one for normal work equipment mounting shown in Fig. 7. Exchange it for 32 only. In addition, as shown in FIG. If you plow with the accumulated soil D that was blown away by the plowing claws, you can suppress the plowing marks. This soil D is collected by retracting the ram 20 and slightly lifting the entire rotary tilling section R as shown in Figure 11. Taking advantage of the steep inclination of the ground leveling carrier body 33 by lifting the ground, move it in the direction of the arrow shown by the dotted line. Can be easily discharged.

[0020] As shown in FIG. 12, by attaching the ridge erector 34 to the mounting hitch 25, the Furrowing can be done at the same time as the tilling work by the tarry tillage section R. In this case, the plowing depth detection The automatic plowing depth control mechanism makes effective use of the rear cover 2 that is built into the sensor. The plowing depth of the tari tilling section R and the furrowing depth (working depth) by the furrowing device 34 are controlled to be approximately constant. At the same time, it can be installed forward of the rear end of the tool bar 5, so it can be mounted on a three-point link machine. The lack of lift in the structure can also be resolved.

[0021] As shown in FIG. 13, the ridge shaping machine consists of a ridge shaping device A and a multi-film covering device B. By attaching the Lucia 35 to the mounting hitch 25, it is possible to perform rotary tillage at the same time. Can be used for shaping and film mulching at the same time. In this case, ram 2 by hand operation The working depth of the ridge shaping multilayer 35 can be adjusted by expanding and contracting 0, and the toolbar Since it can be installed further forward than when it is installed at the rear end of 5, it reduces the influence of wind and Illum multi is possible. In addition, in this case, when the rotating frame 15 rotates, the ridges are leveled. The angle to the ground (installation angle) of the Type Multilayer 35 also changes, but as shown in Figure 14, the tightening By operating the bolt 36, the angle of the support column 37 can be adjusted around the mounting pin 38. This makes it easy to correct the ground angle.

[0022] Further, as shown in FIG. 3, a rubber plate 44 whose front end is attached to the rear end of the main cover 1 extends rearward so that its rear end overlaps the inside of the rear cover 2 for a predetermined length. At the same time, the lower end of the horizontal frame 14 passes below the bearing part 16 of the rear cover 2. The front side of a plate 45 extending rearward is fixed, and these rubber plates 44 and The rotation fulcrum of the rear cover 2 is waterproofed by the plate 45 and the gap is protected from the water. This prevents muddy water from splashing up. Note that 46 in the figure is rotatably supported on a vertical shaft 47. The supported guide rollers guide the back and forth movement of the rail frame 10.

[0023]

[Effect of the idea]

As explained above, this invention allows for free rotation and fixation of the main cover along the main cover. Using the rotating frame provided in the A channel can be provided. The work of attaching the mounting hitch provided on this rotating frame to the rear of the rotary tiller. By attaching the machine, the work machine can be attached to a rotating frame that pivots the upper end of the rear cover. Can move together.

[0024] Therefore, move the rotating frame back and forth and set the rear cover position once. If so, the rear cover and the work machine can be changed as they are inseparable from each other.

[Brief explanation of drawings]

FIG. 1 is a side view of a rotary tiller shown without a working implement attached thereto.

FIG. 2 is a perspective view of the rotary tilling device shown without a work implement attached thereto.

FIG. 3 is an enlarged side view of the rear cover attachment part.

FIG. 4 is a longitudinal sectional view of the rail frame showing a guide roller provided on the horizontal axis.

FIG. 5 is a longitudinal sectional view of the rail frame showing guide rollers provided on the vertical axis.

FIG. 6 is an exploded perspective view of the main cover and the rail frame.

FIG. 7 is a perspective view of a mounting hitch and a rotating frame.

FIG. 8 is a side view of the rotary tiller with a seeding machine attached.

FIG. 9 is a side view of the rotary tiller with a pressure roller attached.

FIG. 10 is a side view of the rotary tiller with a soil leveling carrier attached.

FIG. 11 is a side view illustrating the operation of a steeply inclined ground leveling carrier body.

FIG. 12 is a side view of the rotary tillage device showing a state in which a ridge erector is attached.

FIG. 13 is a side view of the rotary tiller with a shaping mulcher attached.

FIG. 14 is an enlarged plan view showing the front hitch of the shaping multilayer.

[Explanation of symbols]

T Agricultural tractor R Rotary tilling section 1 Main cover 2 Rear cover 5 Tool bar 9 Tilling section 10 Rail frame 14 Lateral frame 15 Rotating frame 24 Support shaft 25
Mounting hitch S Work equipment 27 Front hitch 29 Hitch pin 3
0 Seeding machine 31 Squeezing roller 32 Land leveling carrier 34 Ridge erector
35 Ridge shaping multilayer.

Claims (1)

[Scope of utility model registration request] Claim 1: In a rotary tilling section in which the upper end of the rear cover is pivotally supported at the rear end of a rotating frame provided so as to be movable back and forth along the main cover, a working machine is attached to the rear of the rotary tilling section. A work equipment mounting device for a rotary tiller section, which is attached to a mounting hitch provided at the rear of a moving frame and is moved integrally with a rotating frame that pivots the upper end of a rear cover.