JPS6356225A - Soil covering apparatus of mulching work machine - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a soil covering device for a mulch work machine.

(Prior art) A ridge former for forming a plurality of ridges behind a rotary tiller of a rotary device, a membrane covering device for covering the ridges formed by the ridge with a membrane, and a rotary tiller for scattering the rotary tiller. A mulch work machine equipped with a soil-covering chute for supplying a portion of soil onto the membrane of the furrow is already known from Japanese Utility Model Application Publication No. 48-4801.

(Problems to be Solved by the Invention) In this type of multi-purpose work machine, the soil covering chute is provided above the membrane feeding section of the membrane covering device, but conventionally the soil covering chute was fixed. There was a problem in which soil adhered to the inner surface of the soil-covering chute, making it impossible to secure a sufficient amount of soil-covering.

In other words, if the soil-covering chute is fixed, depending on soil moisture, soil quality, etc., soil may easily adhere to the inner surface of the soil-covering chute.
Once it is attached, new soil is attached and grows, which limits the opening of the soil covering chute and reduces the amount of soil covered.

The present invention aims to solve these conventional problems.

(Means for Solving the Problems) As a means for solving the above problems, the present invention provides a plurality of ridges 1 behind the rotary tilling section 8 of the rotary device 5.
5, a membrane coating device 32 for coating the membrane 18 on the ridges 15 formed by this, and a membrane coating device 32 for coating the membrane 18 on the ridges 15 formed by the ridge forming device 14; In the multi-purpose work machine, the soil covering chute 33 is provided so as to be movable back and forth, and
A vibration mechanism 40 is provided to vibrate the soil covering chute 33 in the front-rear direction in synchronization with the rotation of the rotary tilling section 8 so that the soil covering chute 33 approaches the rotary tilling section 8 side when the rotary tilling section 8 is raised. It is something that

(Function) During work, after tilling with the rotary tilling section 8, a plurality of ridges 15 are formed using the ridge former 14, and the membrane 18 is paid out onto the ridges 15 from the membrane roll 17 of the membrane feeding section 19. , tread axis 2
Step 7 to cover it. Then, a part of the scattered soil raked up by the rotary tiller 8 passes through the soil covering chute 33 and covers the membrane body 18 of the ridge 31 with soil. At this time, the soil-covering chute 33 is vibrating in the front-rear direction by the vibration mechanism 40, so
It is difficult for soil to adhere to the inner surface of the soil-covering chute 33 (and even if it does, it will fall off due to vibration and will not grow. Also, the soil-covering chute 33 vibrates in synchronization with the rotation of the rotary tiller 8, When the soil covering section 8 throws up soil, the soil covering chute 33 approaches the rotary tilling section 8. Therefore, the amount of soil covering does not decrease due to vibration.

(Example) Hereinafter, the present invention will be described in detail with reference to the illustrated example.
In the figures to FIG. 3, reference numeral 5 denotes a rotary device attached to the rear of the tractor via a three-point linkage mechanism 6;
It consists of a rotary tiller 8, a main cover 9, etc. The rotary tiller 8 comprises a pawl shaft 11 and a large number of tilling pawls 12. The pawl shaft 11 is supported in the center by a transmission case 13 of the machine frame 7, and through a transmission mechanism inside the transmission case 13, the pawl shaft 11 is provided with a plurality of tilling pawls 12. Rotationally driven in direction a.

Reference numeral 14 denotes a ridge forming machine, which is arranged at the rear side of the rotary cultivating section 8 and extends in the left-right direction so as to form three ridges 15 at the same time on the lower rear side of the forming front plate 10 which is pivotally connected to the main cover 9. Three pieces are installed at equal intervals. Each ridge shaper 14 is provided with a pair of left and right membrane guide rods 16 corresponding to both sides of the top of the ridge 15 so as to protrude rearward.

Reference numeral 17 denotes a membrane roll obtained by winding a membrane 18 into a roll, and the membrane 18 has a width sufficient to cover the three ridges 15. Reference numeral 19 rotatably supports the membrane roll 17 and supports the membrane body 18.
A membrane feeding unit for feeding out the membrane roll 17, which includes a pair of left and right support rollers 20 that support the membrane roll 17 from below, and a pair of left and right roll supports 21 that fit on both left and right ends of the membrane roll 17. has. The support rollers 20 consist of a pair of front and rear support rollers, and the support rollers 20 are attached to a frame 22 that is attached to a frame 22 that is laterally attached to the upper and lower intermediate portions of the molded front plate 10.
It is rotatably supported via 3. Roll support 2
Reference numeral 1 is for supporting the membrane roll 17 so that it does not fall off the support roller 20, and is provided at the rear end of a swing arm 24 attached to the frame 22 side.

A lifting roller 25 lifts and guides the center of the membrane 18 fed out from the membrane roll 17, and is disposed near the rear of the membrane roll 17 at the left and right center of the membrane feeding section 19. It is rotatably supported by a support rod 26 passing under the body roll 17.

Reference numeral 27 denotes treading shafts for stepping on the film body 18 drawn out on the ridge 15 on both the left and right sides of the ridge 15. Four treading shafts 27 are arranged in the left and right direction, and each of the treading shafts 27 has a support bent in a dogleg shape. It is rotatably supported at the rear end of the rod 28. Each support rod 28 is pivotally supported by a bracket 29 at the upper end of the molded front plate 10 so as to be able to swing up and down, and is biased downward by a spring 30. Among the four treading shafts 27, two treading shafts 27 located between the ridges 15
are arranged slightly forward of the treading shafts 27 at both left and right ends, and after stepping on the treading shafts 27 between the ridges 15 into the ridge groove 31 so that the membrane body 18 is in close contact with the central ridge 15, It is configured to tread both left and right ends of the membrane body 18 so as to be in close contact with the left and right ridges 15 with the tread shafts 27 at both left and right ends. Note that a membrane covering device 32 is constituted by the membrane feeding portion 19, the stepping shaft 27, and the like.

Reference numeral 33 denotes a soil covering chute for discharging soil raked up by the tilling claws 12 of the rotary tilling unit 8 to the rear and covering the membrane body 18 on both left and right sides of the ridge 15, and is formed on the upper side of the molded front plate 10. Four openings 34 are provided in the left-right direction to face the openings 34 . As shown in FIG. 4, a receiving plate 37 is provided on the top plate 36 side of each soil-covering chute 33 so as to protrude further forward toward the rotary tiller 8 than the molded front plate 10. In addition, the four soil covering chutes 33 are connected to a bottom plate 38 in the left and right direction provided below spanning each of these soil covering chutes 33.
is fixed. The bottom plate 38 is inclined backwardly and is supported by a parallel link mechanism 39 on the upper center side of the molded front plate 10 so as to be swingable back and forth, and the vibration mechanism 4
0 in synchronization with the rotation of the pawl shaft 11 in the front-back direction.

The parallel link mechanism 39 includes a fixed bracket 41 that protrudes rearward from the molded front plate 10 and a bracket 42 on the bottom plate 38.
and are connected by vertical links 43 and 44.

The vibration mechanism 40 has a pair on the left and right, and includes a disk 45 fixed to the outer end of the claw shaft 11, an eccentric bottle 46 fixed to the disk 45, and a bottle fixed to brackets 47 at both ends of the bottom plate 38. 4, and a rod 49 that connects these eccentric bins 46 and 48, and the rotation of the claw shaft 11? In synchronization with the above, when soil is thrown up by the tilling claws 12 of the rotary tilling section 8, the soil covering chute 33 moves forward and the receiving plate 37 approaches the rotary tilling section 8 through the bottom plate 38. The soil covering chute 33 is configured to vibrate in the front-back direction 4. On the other hand, inside the tilling claws 12 of the rotary tilling section 8, 4
The tilling claw 12 in the portion corresponding to each soil covering chute 33 has a wing-shaped upper flip-up portion 5 to make it easier to jump up the tilled soil.
0 is attached to the side. Incidentally, the upper flip-up portions 50 are provided on the two tilling claws 12 at substantially symmetrical positions to maintain the dynamic balance during tilling. A fixed receiving plate 51 is attached to the molded front plate 10 on the lower edge side of the opening 34 so as to receive the front end of the bottom plate 38 from below. 52 is a gauge wheel.

In the above configuration, during work, the field is tilled by the rotary tilling section 8 of the rotary device 5, and the tilled soil is guided to the side of each ridge former 14 provided on the shaping front plate 10, and the tilled soil is divided into 3 by each ridge former 14. The ridges 15 of the strips are formed at the same time. Then, three ridges 15 are formed from the membrane roll 17 of the membrane feeding unit 19.
The membrane body I8 is stepped on on both sides of number 15 with four tread wheels 27, and the membrane body 18
Closely attach it to number 15. That is, after lifting the central part of the membrane body 18 fed out from the membrane roll 17 with the lifting roller 25 to loosen the central part of the membrane body 18, the central part side of the membrane body 18 is lifted. It is pressed into the ridge groove part 31 with the tread wheels 27 so as to be in close contact with the ridge 15 on both the left and right sides of the central ridge 15.

After the membrane body 18 is brought into close contact with the central ridge 15 in this manner, both left and right ends of the membrane body 18 are stepped on with the tread wheels 27 at both left and right ends, and the membrane body 18 is pressed against the ridges 15 on both the left and right sides. Close contact. Therefore, the membrane body 18 is formed between the ridges 15 and the ridges 31.
The film body 18 can be brought into close contact with the three ridges 15 without floating up.

After the membrane body 18 is trampled, a part of the scattered soil raked up by the rotary plowing section 8 is received by the receiving plate 37 and the soil covering chute 3 is trampled.
The soil is guided to the third side and discharged backward through the soil covering chute 27.
Cover the membrane 18 with soil 57 and press the membrane 18 down. As a result, as shown in FIG. 5, the number 15 can be covered with the membrane 18 in close contact, and even if the membrane 18 is stepped on with the tread wheel 27, the membrane 18 will not be torn.

On the other hand, when the claw shaft 11 rotates, the tilling claws 12 in the portion corresponding to the soil covering chute 33 actively lift up the tilled soil with the upper flip-up portion 50, and the crank movement of the rod 49 causes the tilling claws 12 in the portion corresponding to the soil covering chute 33 to lift up the tilled soil through the bottom plate 38. The soil-covering chute 33 fixed thereto vibrates in the front-rear direction. Therefore, the soil thrown backward through the soil-covering chute 33 becomes difficult to adhere to the inner surface of the soil-covering chute 33, and even if it does adhere, it is easily destroyed due to vibration, and the opening area of the soil-covering chute 33 is limited to the area on which the soil adheres. It will not become smaller due to The soil covering chute 33 vibrates back and forth, but since the soil covering chute 33 moves forward when soil is thrown up by the tilling claws 12, the thrown up soil can be reliably received by the receiving plate 39, and the amount of soil covered is increased by the vibration. Therefore, a predetermined amount of soil can always be secured.

In addition, in the embodiment, a three-row type is illustrated, but a two-row type may also be used, and as a means for covering both left and right ends of the membrane body 18, a soil-covering ring may be used instead of the soil-covering chute 33. May be used.

Furthermore, the bottom plate 3 may be supported by the parallel link mechanism 39, or may be provided with a guide rail so that it can slide linearly.

Further, the vibration mechanism 40 may be configured such that a PTO shaft protruding rearward is provided in the input gear case at the center of the upper part of the rotary device 5, and the soil covering chute 33 is vibrated by rotational power from the PTO shaft.

(Effects of the Invention) According to the present invention, since the soil covering chute 33 is vibrated in the front and back direction by the vibration mechanism 40, soil does not adhere to and grow on the inner surface of the soil covering chute 33, and therefore, the soil does not adhere to the inner surface of the soil covering chute 33 and grow. It is possible to prevent the opening area of the soil covering chute 33 from being restricted by soil. Moreover, since the soil covering chute 33 vibrates in synchronization with the rotation of the rotary tilling section 8 so as to approach the rotary tilling section 8 side when the rotary tilling section 8 is raised upward, the amount of soil covered is reduced due to the vibration of the soil covering chute 33. This will ensure that the specified amount of soil is covered at all times.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is an overall side view, Fig. 2 is an overall rear view, Fig. 3 is an overall side view, and Fig. 4 is a main part. FIG. 5 is an enlarged cross-sectional view of the device covered with a film body. 5... Rotary device, 8... Rotary tilling section, 1o
... Molding front plate, 14... Ridge forming machine, 15... Ridge, 18... Membrane body, 19... Membrane body feeding part, 27...
Tread transport, 32... Membrane covering device, 33... Soil covering chute, 38... Bottom plate, 39... Parallel link mechanism, 4
0... Vibration mechanism. Patent applicant: Kubota Iron Works Co., Ltd. Same as above: Sukigara Agricultural Machinery Co., Ltd.

Claims (1)

[Claims] (1) A ridge forming device 14 that forms a plurality of ridges 15 behind the rotary tilling section 8 of the rotary device 5, and a membrane coating device 32 that covers the formed ridges 15 with the membrane 18.
and a soil covering chute 33 that supplies part of the scattered soil from the rotary tilling section 8 onto the membrane body 18 of the ridge 31. A vibration mechanism 40 is provided for vibrating the soil-covering chute 33 in the front-rear direction in synchronization with the rotation of the rotary tilling section 8 so that the soil-covering chute 33 approaches the rotary tilling section 8 when soil is thrown up in step 8. Soil covering device for mulch work machines featuring: