JPS632Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] (Industrial field of application) The present invention relates to a tilling soil crusher, and is mainly used for rotary work when performing forward work and backward work without changing the direction of the tilling soil crusher. This invention relates to an improved cover body that covers the upper part of the body.

(Prior Art) Conventionally, tillage crushers for creating transplant beds, seed beds, etc. for transplanting crops are usually provided with a rotary work body rotatably mounted on the machine frame, and the upper part of the rotary work body is provided with a fixed cover. A flat plate is connected to the rear end of the fixed cover so as to be movable up and down. However, according to this structure, when the tiller is moved forward, the leveling plate is located at the rear in the direction of movement, allowing for good soil leveling work. When traveling backwards, the leveling plate is located at the front in the direction of movement of the rotary work body when traveling backwards, so this leveling plate sticks into the soil and creates a large resistance, making it impossible to work. This poses a problem in that the structure of the conventional soil tiller and crusher cannot be moved forward or backward without changing direction.

Therefore, as described in Japanese Utility Model Application Publication No. 53-103812, a cover holder is fixed to the side frame of the rotary work body, and an upper cover with front and rear covers pivoted back and forth to this cover holder is attached. A structure has been proposed in which the upper cover is engaged so as to be movable forward and backward, and one of the front cover or the rear cover of the upper cover is set to be in contact with the ground, and the upper cover is fixed to the side frame with a plurality of bolts. ing.

(Problems to be solved by the invention) According to the structure described in the above publication, the mounting position of the cover body with respect to the rotary work body is changed, and either the front or rear part of the cover body is selectively grounded. However, when changing the setting position of this cover body, it is necessary to attach and detach multiple bolts each time, which requires an extremely large number of steps. Therefore, when the work equipment is moved backwards without changing its direction, the set position of the cover body must be changed every stroke by attaching and removing bolts, so the work must be done continuously. There is a problem in that it is not possible to do so, which is unfavorable in terms of work efficiency.

Therefore, the present invention was developed in view of these points, and it is possible to easily install a cover body opposite to the rear part of the rotary work body in the direction of travel according to the direction of travel of the rotary work body, thereby making it possible to change the direction. It is an object of the present invention to provide a tiller and crusher that can perform reciprocating tillage in a highly efficient tilling operation without having to do so.

[Structure of the idea]

(Means for Solving the Problems) The tilling and crushing machine of the present invention includes a machine frame, a rotary work body rotatably provided on the machine frame, and an upper part of the rotary work body attached to the machine frame. a fixed cover that covers the fixed cover and has a plurality of long guide grooves formed in the front and back direction at predetermined intervals in the width direction, and a plurality of guide protrusions that are inserted from below into the plurality of guide long grooves on the lower surface of the fixed cover. between a slide cover that is slidably attached in the front and back direction through the slide cover and has an extension section opposite to the front or rear part of the rotary work body at the front and rear sides, and the upper part of each of the guide protrusions of the slide cover. an operating rod whose lower end is rotatably attached to a horizontally suspended interlocking rod, has an operating handle at its upper end, and is rotatably supported by a support shaft in the middle; By rotating the rod, the extension on one side of the slide cover is arranged opposite to the rear portion of the rotary work body in the direction of movement.

(Function) In the tilling and crushing machine of the present invention, when the machine is driven forward by a tractor, for example, when the operating handle is operated and the operating lever is rotated forward about the supporting shaft, the lower end of the operating lever is rotated. Each guide protrusion is moved rearward in its respective long guide groove through an interlocking rod connected to the section, and the slide cover having each guide protrusion is slid rearward along the lower surface of the fixed cover, The rear extension portion of the slide cover protrudes significantly downward from the rear end edge of the fixed cover, thereby closing the rear portion of the rotary work body and opening the front portion of the rotary work body.

Next, if you want to drive the machine backwards with the tractor without changing the direction of the tractor, turn the operating handle and operating rod backwards in the opposite direction to the above case, and the slide cover will move as shown in the above case. The front extension of the slide cover is slid forward in the opposite direction, and the front extension of the slide cover protrudes significantly downward from the front edge of the fixed cover, and the rear extension is pulled up toward the fixed cover. The rear part is opened and the front part of the rotary work body is closed.

(Example) An example of the present invention will be described below based on the accompanying drawings.

In the figure, reference numeral 1 denotes a main frame extending left and right, and the upper part of a chain case 2 is attached to one end of the main frame 1, and a chain case 2 facing the chain case 2 is attached to the other end of the main frame 1. The upper part of the bracket 3 is attached, and the main frame 1, the chain case 2, and the bracket 3 constitute a machine frame.

Next, a rotary work body 4 is rotatably mounted on a shaft between the chain case 2 and the lower part of the bracket 3. This rotary work body 4 includes a tilling shaft 8 rotatably mounted between the lower ends of the chain case 2 and the bracket 3, and a large number of tilling claws arranged radially on the circumferential side of the tilling shaft 8 in the axial direction. It is structured prominently.

Furthermore, a transmission 6 with an input shaft 5 protruding forward is attached to the intermediate portion of the main frame 1, and this transmission 6 switches the input power between the forward rotation direction and the reverse rotation direction by a switching mechanism (not shown) and transmits the power. It is now possible to do so. The output shaft 7 of the transmission 6 is rotatably provided within the main frame 1, and its outer output end protrudes into the upper part of the chain case 2. The input end of the tilling shaft 8 protruding into the lower part of the chain case 2 of No. 4 is rotatably connected to the input end of the tilling shaft 8 through sprockets provided respectively and a chain 9 suspended between the sprockets.

Next, a fixed cover 10 covering the upper part of the rotary work body 4 is fixed between the chain case 2 and the bracket 3. The fixed cover 10 is curved into a substantially semicircular shape, and a plurality of guide grooves 11 are formed in parallel at predetermined intervals in the width direction from the middle part of the upper surface part to the front side part. Further, on the lower surface of this fixed cover 10, a mounting plate 12 which is curved into a substantially semicircular shape is arranged so as to be slidable in the front and back direction, and protrusions are provided at predetermined intervals in the width direction of this mounting plate 12. A plurality of guide protrusions 13 are slidably protruded from below to above in each of the guide long grooves 11, and an interlocking rod 14 extending laterally is connected to the upper part of each guide protrusion 13. ing. Furthermore, a slide cover 1 made of a flexible member such as a rubber plate is attached to the lower surface of the mounting plate 12.
5 are fixed together, and this slide cover 15
is formed larger than the fixed cover 10, and has extension portions 16 and 17 at its front and rear portions that protrude from the front and rear edges of the fixed cover 10 and largely protrude downward so that they can alternately level the ground. It is formed as follows.

Next, lower pins 1 are attached to the left and right sides of the main frame 1.
A lower arm 19 having a tip 8 at its tip protrudes forward, and an upper arm 21 having a connecting portion 20 at its tip protrudes to the mission 6, and this upper arm 21 and the lower It is connected to the arm 19 by a stay 22. In addition, an operating rod 23 is located in the middle of the upper arm 21.
The middle part of is rotatably mounted on a support shaft 24,
An operating handle 25 is attached to the upper part of the operating rod 23, and an intermediate portion of the interlocking rod 14 is rotatably connected to a connecting portion 26 formed at the lower end of the operating rod 23.

Next, the operation of the above structure will be explained.

The lower pins 18 at the bottom on both sides and the connection section 20 at the top are connected to the three-point suspension mechanism of the tractor, and the input shaft 5 is connected to the power take-off shaft of the tractor via a power transmission shaft having universal joints at both ends. .

When moving the machine forward with a tractor, operate the operating handle 25 and press the operating rod 23.
When rotated forward about the support shaft 24, each guide protrusion 13 is moved rearward within its respective guide groove 11 via the interlocking rod 14 connected to the lower end of the operating rod 23. The slide cover 15 is slid backward along the lower surface of the fixed cover 10 via the mounting plate 12 having each guide protrusion 13,
Therefore, as shown by solid lines in FIG. It protrudes significantly downward, thereby closing the rear part of the rotary work body 4 and opening the front part of the rotary work body 4.

In this state, the machine is towed by the tractor and travels forward, and when the rotary work body 4 is rotated in the down-cut direction by the power input from the tractor, the rotary work body 4 As the cultivated soil is gradually tilled and crushed,
The rear extension 17 of the slide cover 15 is curved rearward, and the leveling effect of the curved surface 17a ensures that the surface of the tilled soil is leveled.

Next, if you want to drive the machine backwards with a tractor without changing the direction of the tractor, turn the operating handle 25 and the operating rod 23 backward in the opposite direction to the above case, and the slide cover 15 will open. The sliding cover 15 is slid forward in the opposite direction to the above case, and as shown by the chain line in FIG. The portion 17 is pulled up toward the fixed cover 10, thereby opening the rear portion of the rotary work body 4 and closing the front portion of the rotary work body 4.

In this state, when the tractor moves backward and the rotary work body 4 is rotated in the up-cut direction, the rotary work body 4 removes the remaining rod, if any. While the tilled soil is being tilled and crushed one by one while the
6 is curved backward in the traveling direction, and its curved surface 16a
The surface area of the tilled soil is leveled by the leveling effect of this method. In the above case, since the slide cover 15 is made of a flexible member such as rubber, it is difficult for dirt to adhere to it, the attached soil is removed by the slide, and the impact against stones and the like is reduced.

Furthermore, when the machine is driven backwards due to the tractor reversing, the rotary work body 4 is rotated in the downcut direction by switching the transmission switching mechanism and switching the power input from the tractor to the reverse direction. In this state, the machine may be made to travel backwards by reversing the tractor. At this time, the slide cover 15 slides in the same way as in the previous case, and the extension part 16 of the front part protrudes greatly downward, and the extension part 16 of the front part is moved in the traveling direction of the rotary work body 4 when the rotary work body 4 moves backward. It is installed opposite to the rear part of.

[Effect of idea]

According to the present invention, the sliding cover can be slid back and forth with respect to the fixed cover via the operating rod by rotating the operating handle, so rotary work can be performed by rotating forward and backward without changing direction. The extension on one side of the slide cover can be easily installed opposite to the rear part of the moving direction depending on the direction of movement of the body, which makes reciprocating plowing possible without changing direction. It can be done efficiently. Further, the tilled soil that is thrown away from the rotary work body and guided downward to the rear side by the extension portion of the rear portion in the traveling direction of the rotary work body can be reliably leveled by its leveling action. Furthermore, by sliding the slide cover relative to the fixed cover at the time of switching, soil attached to the slide cover due to vibrations caused by the slide can be easily removed.

[Brief explanation of drawings]

The figures show one embodiment of the present invention, in which Fig. 1 is a perspective view of a tiller and crusher, and Fig. 2 is a partially cutaway side view of the same. 1, 2, 3...Machine frame, 4...Rotary work body,
10... Fixed cover, 11... Guide long groove, 13...
...Guiding protrusion, 14... Interlocking rod, 15... Slide cover, 16, 17... Extension part, 23... Operating rod, 24... Support shaft, 25... Operating handle, 26
...Connection part.

Claims (1)

[Scope of utility model registration request] A machine frame, a rotary work body rotatably provided on the machine frame, and a plurality of long guide grooves attached to the machine frame and covering the upper part of the rotary work body and spaced at predetermined intervals in the width direction. A fixed cover formed in the front and back direction is attached to the lower surface of the fixed cover so as to be slidable in the front and back direction via a plurality of guide protrusions inserted from below into the plurality of long guide grooves. A slide cover having an extension section opposite to the front or rear part of the body, and an interlocking rod extending horizontally between the upper parts of the guide protrusions of the slide cover, the lower end of which is rotatably attached to the upper end of the slide cover. an operating rod that has an operating handle on a portion thereof and is rotatably supported on a support shaft in the middle, and by rotating the operating rod, the extension portion on one side of the slide cover is moved to the rotary shaft. A tilling and crushing machine characterized by being installed opposite to the rear part of the working body in the direction of movement.