JPH026725Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention relates to a seeding machine lowering device that elastically supports downward a seeding machine whose front end is connected to a main shaft horizontally mounted on a machine frame.

(Prior art) This type of conventional seeding machine reduction device has a
There is an idea described in the -35041 publication.

(Problems to be solved by the invention) In the conventional seeding machine rolling down device described above, when the pressure roller at the rear end of the seeding machine reaches the convex part of the field,
Accordingly, the receiver on the rear base metal of the seeding machine moves forward by sliding on the support rod against the elasticity of the spring, and the base frame with the connecting metal supports the main shaft or the pivot pin at the front end of the underframe as a fulcrum. Rotate upward.

Therefore, in that case, when the seeding machine rotates and rises, the rear end of the support rod protrudes rearward from the receiving tube and remains, so the rear protrusion of the support rod becomes a hindrance to the work. Moreover, it is also dangerous for safety.

(Means for solving the problem) Therefore, in order to solve the above-mentioned problem by allowing the seeding machine to move up and down without the support rod protruding rearward, this invention has been developed by attaching the machine frame 1 to the tractor. The main shaft 2 is horizontally mounted and a horizontal bar 3 is provided above, and the seeding machine a
The front end of the front connecting rod 5 of the underframe 4 is rotatably fitted onto the main shaft 2, the support 7 is provided at the upper end of the column 6 on the underframe 4, and the hanging rod 8 has its front end attached to the horizontal bar 3. A joint pipe 9 is fixed to the rear end, the front end of the actuating rod 10 whose rear end is attached to the receiver 7 is slidably inserted into the joint pipe 9, and a stopper 11 is provided on the front protrusion.
A spring 12 fitted to an actuation rod 10 is interposed between the receiver 7 and the joint pipe 9.

(Function) When working by towing the seeding machine a with a tractor, the pressure roller 1 behind the underframe 4 of the seeding machine a
When the seeding machine 3 reaches the convex part of the field, the operating rod 10 of the seeding machine a slides on the joint pipe 9 against the elasticity of the spring 12 and moves forward, and the seeding machine a moves forward on the underframe 4. The front leveling roller 14 rotates upward about the roller shaft 15 as a fulcrum.

(Example) The drawing shows a multi-row fertilization seeding machine according to an embodiment of this invention, 1 is a machine frame of the multi-row fertilization seeding machine, and the top and bottom of the triangular mounting frame 16 fixed on the center of the front end are shown. ,
Although not shown, the tractor's three-point link hitch 17
The main shaft 2 is rotatably mounted horizontally on the front part of the machine frame 1, and a horizontal beam 3 is fixedly installed above.

b shows several fertilizer applicators installed side by side in the left and right direction at the front of the machine frame 1, 18 is the fertilizer tank of the fertilizer applicator b, the upper part of the wall is fixed to the horizontal bar 3, and the rotating shaft 19 is installed in the bottom. Although not shown, a rotating agitation splash body is provided. Reference numeral 20 denotes a ∧-shaped fertilization groove cutter disposed below the fertilizer tank 18 when viewed from above, and 21 denotes a fertilizer drop gutter arranged vertically with its upper opening facing the rear of the delivery port of the fertilizer tank 18; faces into the rear of the fertilizing furrow cutter 20. Reference numeral 22 denotes a dish-shaped soil-covering disk that is rotatably supported and arranged in a V-shape that expands at the front when viewed from above, immediately after the fertilizing furrow cutter 20.

A indicates a seeding machine placed behind each fertilizer applicator b, 4 is the underframe of the seeding machine a, and pillars 23 and 6 each having a bifurcated upper part are fixed to the front and rear of the frame, respectively. A receiver 7 is placed in the upper end of the support column 6.
is rotatably supported. On the other hand, the seeding box 2 is placed on the underframe 4.
4 and place the seed tank 25 on the sowing box 24.
Although not shown, a seed dispensing disk that is rotated by transmission from an input shaft 26 horizontally mounted on the front part of the sowing box 24 is housed inside the sowing box 24, and disks on both sides are installed below the sowing box 24. A seeding furrow cutter 27 arranged in a V-shape that widens at the rear when viewed from above and rotatably supported by a shaft.
is provided so that the lower mouth of the seed drop gutter 28 of the seeding box 24 faces into the rear of the seeding groove cutter 27.

Reference numerals 29 and 30 denote front and rear support frames of the shape, and the tips of their horizontal pieces are rotatably supported on the front and rear ends of the underframe 4, respectively. The upper end is connected by a seeding depth adjustment bolt 31 with a handle, and its front support frame 29
A leveling roller 14 is attached to the lower end of the vertical piece of the roller shaft 15.
Accordingly, the pressure rollers 13 are rotatably supported at the lower ends of the vertical pieces of the rear support frame 30 by roller shafts 32, respectively. Reference numeral 33 denotes soil covering metal on both sides arranged behind the seeding furrow cutter 27.

Reference numeral 5 denotes a connecting rod, the front end of which is rotatably fitted to the main shaft 2, and the rear end to the input shaft 26, respectively. Reference numeral 8 denotes a hanging rod, and a U-shaped fitting 34 at the front end of the rod is fitted onto the horizontal beam 3, which is then fitted with a bolt 35, and a connecting pipe 9 is fixed to the lower surface of the rear end. Reference numeral 10 denotes an actuating rod, whose rear end is inserted into a through hole in the receiver 7 and fixed to the receiver 7 by tightening nuts 36, 36 screwed onto the screws, and whose front end is slidable into the connecting pipe 9. A stopper 11 is provided on the front protrusion by fitting, and a spring 12 fitted on the actuating rod 10 is interposed between the receiver 7 and the connecting pipe 9.

37 is a wheel pivotally supported on both sides of the middle part of the machine frame 1;
The axle 38 and main shaft 2, the main shaft 2 and rotating shaft 19, and the input shaft 26 are connected to chain transmission mechanisms 39 and 4, respectively.
Connected by 0,41.

Next, its effect will be explained. When the machine is put into the field, fertilizer is put into the tank 18 and seeds are put into the sowing box 24 from the tank 25, and the tractor is started and the machine is moved forward, the wheels 3
7 rotates on the ground, and from its axle 38 a transmission mechanism 39
The main shaft 2 rotates through the main shaft 2, and the transmission mechanism 4
0. At the same time, the stirring body in the tank 18 is driven through the rotating shaft 19, and at the same time, the transmission mechanism 4 is driven from the main shaft 2.
1. Drive the feeding disk in the seeding box 24 via the input shaft 26.

Therefore, the fertilizer in the tank 18 is gradually stirred by the stirring splash body and splashed into the falling gutter 21, and the fertilizer flows down from the lower end of the falling tube 21 into the fertilizing groove made by the groove cutter 20. After that, the fertilization groove is covered with soil by a subsequent soil covering disk 22. on the other hand,
The seeding machine a moves while the underframe 4 with the seeding box 24 is supported by the rotation of the ground leveling roller 14 and the pressure roller 13, and the seeding machine A sequentially sows seeds while leveling the soil on the covered soil after fertilization with the rollers 14. The seeds in the box 24 are sent into the falling gutter 28 by a feeding disk,
The seeds are sown by falling from the lower end of the falling gutter 28 into the seeding groove made on the covering soil using the groove cutter 27, and then the seeding groove is covered with soil by subsequent side covering metals 33, and the top is covered with a roller. At 13, the area is subdued and fertilization and seeding operations are carried out.

During the work, when the pressure roller 13 reaches a convex part of the field, the actuating rod 10 of the seeding machine a slides on the joint pipe 9 against the elasticity of the spring 12 and moves forward, sowing seeds. The machine a rotates upward about the roller shaft 15 of the leveling roller 14 as a fulcrum.

Thereafter, when the pressure roller 13 passes over the convex part of the field, the weight of the sowing machine a and the elasticity of the spring 12 combine to cause the seeding machine a to rotate downward in the opposite direction. After the stopper 11 hits the joint pipe 9, downward rotation of the seeding machine a is prevented.

(Effects of the invention) The seeding machine reduction device of this invention has the following remarkable effects.

(1) When the pressure roller at the rear end of the seeding machine reaches the convex part of the field, the operating rod on the support of the seeding machine slides into the joint pipe against the elasticity of the spring and moves forward. The seeding machine rotates upward using the front end of its frame as a fulcrum. Therefore, (a) Regardless of the vertical movement of the seeding machine, there is no risk that the hanging rod will protrude rearward from the support and become an obstruction.

(b) It is safe to work with.

(2) It has a simple structure, can be manufactured easily and inexpensively, operates light and smoothly, and is firmly fixed.

[Brief explanation of the drawing]

FIG. 1 is a side view of a multi-row fertilization seeding machine according to an embodiment of the present invention, and FIG. 2 is an enlarged side view of the hanging main part of the seeding machine, with a part cut away. Figure 3 is the second
It is a sectional view taken along the - line in the figure. a... Seeding machine, 1... Machine frame, 2... Main shaft, 3...
...Horizontal beam, 4...Underframe, 5...Front connecting rod, 6...
Post, 7... Receiver, 8... Hanging rod, 9... Joint pipe, 10... Operating rod, 11... Stopper, 12
……spring.

Claims (1)

[Scope of utility model registration request] The main shaft is suspended horizontally on the machine frame that is attached to the tractor, a horizontal beam is provided above, and the front end of the front connecting rod of the underframe of the seeding machine is rotatably fitted to the main shaft, and the upper end of the support on the underframe is attached. A support is provided, a joint pipe is fixed to the rear end of the hanging rod whose front end is attached to the horizontal beam, and the front end of the operating rod whose rear end is attached to the support is slidably fitted into the joint pipe. A seeding machine lowering device is provided with a stopper on the front protruding portion of the seeding machine, and a spring fitted to an operating rod is interposed between the receiver and the connecting pipe.