JPH022704Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present application relates to an invention related to a connector for a harvester for harvesting underground crops, such as beets and potatoes.

(Conventional technology and its problems) Conventional towed harvesters for underground crops are
Transportation from garages etc. to farmland was carried out by being pulled by tractors or trucks.

However, since the digging blade at the front end of the harvester for digging up the harvested material is vertically installed at a position just below the ground surface, the digging blade may be exposed to obstacles on the road surface during transportation as described above. For example, there was a problem of damage due to contact with stones, protrusions, etc.

(Technical problem to be solved by the invention) The technical problem to be solved by the invention to solve the above problem is that when a towed harvester is transported from a garage etc. This is to prevent the blade from coming into contact with obstacles on the road surface.

(Technical means for achieving the technical problem) The technical means of the present invention for achieving the above-mentioned technical problem is to suspend a mounting shaft from the tip of the machine frame, and to A connecting shaft connected to a traction shaft at the rear of the tractor is rotatably provided at the lower end, and the mounting shaft and the connecting shaft are connected via a cylinder.

(Function) When the cinder is extended with the connecting shaft of the towed harvester connected to the traction shaft at the rear of the tractor, the front part of the towed harvester rises, and the harvester tilts rearward and connects with the tractor. Concatenated. Also, when the extended cylinder is contracted, the raised front part descends and returns to a horizontal state.

(Effects of the invention) The invention has the above-described configuration, so that when towing a towed harvester, the front side of the harvester is raised and the rear side is tilted downward. Therefore, it is possible to prevent the digging blade from coming into contact with obstacles on the road surface.

(Example) An embodiment of the present invention will be described with reference to the drawings.

The towed harvester A is for digging up and harvesting underground crops such as beets or potatoes, and the towing shaft n of the tractor B is attached to the tip of the machine frame m.
It is provided with a coupler 1 for connection with the excavator blade 5, a lower chain conveyor 6, a guide 7, a rotary bucket conveyor 8, an upper carry-in conveyor 9, and a loading platform 10.

The coupler 1 has a mounting shaft 2, a connecting shaft 3,
A connecting shaft 3 having a connecting piece 3a connected to the traction shaft n of the tractor B is rotatably provided at the lower end of the mounting shaft 2, which consists of a cylinder 4 and is vertically installed at the tip of the machine frame m. The upper front side of the attached shaft 2 and the upper front side of the connecting shaft 3 are connected via a cylinder 4, and the expansion and contraction of the cylinder 4 causes the connecting shaft 3 to rotate in the vertical direction around the lower end of the attached shaft 2. do.

The cylinder 4 is a hydraulic or air cylinder, and is extended and contracted from the driver's seat of the tractor B to raise and lower the front part of the harvester 1.

It should be noted that the traction shaft n installed at the rear of the tractor B is attached to be rotatable in the vertical direction.

The digging blade 5 is vertically installed at the front of the machine frame 1, and as the harvester A moves, it digs up beets, potatoes, etc. together with the soil.

The chain conveyor 6 consists of the conveyor 60 and a rear conveyor 61. The front end of the front conveyor 60 is located directly behind the digging blade 5, and the beets, potatoes, etc. to be dug are transported between the upper and lower chain belt parts. The soil is conveyed to the rear conveyor 61 while being held between the two and efficiently separating and sieving the soil. Therefore, it is desirable that the front conveyor 60 vibrates up and down.

The rear conveyor 61 has a rear end extending to the rear of the machine frame m, and conveys beets, potatoes, etc. sent from the front conveyor 60 to the rotary bucket conveyor 8 at the rear of the machine frame m.

The guide 7 is located on the chain belt section at the rear end of the rear conveyor 61, and guides beets, potatoes, etc. toward the bucket section 80 of the rotary bucket conveyor 8, and dumps unnecessary stems and leaves such as beets to the rear of the machine frame m. do.

The rotary bucket conveyor 8 is located so as to surround the rear end of the lower rear conveyor 61 and the upper carry-in conveyor 9, and a bucket section 80 for beets, potatoes, etc. that is guided by the guide 7 and falls.
The cargo is received by the carrier, lifted onto the carry-in conveyor 9, and dropped onto the same conveyor for conveyance. Therefore, the rotary bucket conveyor 8 has a shielding plate 8 along the inner peripheral surface where it can be opened.
3... is provided with bucket parts 80 divided at equal intervals, and an endless toothed band 81 is provided along the center on the outer circumferential side, and endless guide bands 82 are provided on both sides of the toothed band 81 from the tooth height. It is also tall and integrated. The rotary bucket conveyor 8 is supported by a plurality of lower drive gears 11, 11 meshing with the tooth band 81 from three sides and an upper idler gear 12.

The drive gears 11, 11 and the idler gear 12 are attached to the machine frame m by shafts 13, 14, 15 so as to be located at approximately equal angles on three sides of the outer periphery of the rotary bucket conveyor 8, and the drive gears 11, 11 is connected to a motor 16 or other power source, and supports the rotary bucket conveyor 8 so as to be rotatably driven by meshing with its tooth band 81. The upper carry-in conveyor 9 has its front end facing into the loading platform 10 on the machine frame m, and carries the beats, which are loaded and sent by the rotary bucket conveyor 8, into the loading platform 10.

[Brief explanation of the drawing]

FIG. 1 is a front view of the towed harvester of the present invention connected to a tractor, and FIG. 2 is a front view of the connector cylinder extended and the front of the harvester raised upward. In addition, in the diagram, A... Towed harvester, B...
Tractor, 1...Coupler, 2...Mounting shaft, 3...Connection shaft, 4...Cylinder, m
. . . machine frame, n . . . traction shaft, respectively.

Claims (1)

[Scope of utility model registration request] A mounting shaft is vertically disposed at the tip of the machine frame, and a connecting shaft rotatably connected to the traction shaft at the rear of the tractor is rotatably provided at the lower end of the mounting shaft, and the mounting shaft and the connecting shaft are connected to the cylinder. A towed harvester coupler connected via.