JPH0330331Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field This invention relates to a direction changing device for a helical grain lifting device that transports grains etc. to appropriate positions.

Problems to be solved by the invention: The upper and lower grain transfer tubes are connected by a horizontal grain transfer tube, and the horizontal grain transfer tubes are connected in the middle so that they can rotate freely around this axis. When rotating this joint to change the grain release direction of the upper grain transfer tube, this joint cannot be firmly connected because it needs to be configured to be rotatable, and the upper Due to the load of the grain transfer tube, a gap is generated at the joint, and the grains get stuck in the gap, making it difficult to rotate smoothly at the joint. In addition, the grains that get stuck in the grains obstruct the transport of the grains.

In particular, with this type of grain transfer tube, residual grains often accumulate on the horizontal portion, and this must be removed.
It was difficult to clean.

Means for Solving the Problem This invention consists of upper and lower grain transfer cylinders 4 and 6 which are internally installed to rotate the helices 1, 2 and 3, and a horizontal structure located between these upper and lower grain transfer cylinders 4 and 6. The grain transfer cylinders 5 are connected together, and the horizontal grain transfer cylinders 5 are joined in the middle so as to be freely rotatable around this shaft 40, and the sleeve 5 is connected to the inner peripheral surface of this joint part.
0 are fitted together, and the flanges 47, 47 formed on the outer periphery of the joint portion are held and connected to the locking tools 49, 49 to form a direction changing device for a helical grain lifting device.

Effects and effects of the invention Grain transfer tube 4 with helices 1, 2, and 3 inside,
5 and 6, but when changing the grain discharge direction of the upper grain transfer cylinder 6,
A horizontal grain transfer tube 5 connecting the grain transfer tube 6 at one end is rotated around a shaft 40 at a joint in the middle to rotate the grain transfer tube 6 up and down.

This joint part of the grain transfer tube 5 rotates under the load of the upper grain transfer tube 6, and
Since the joints are connected relatively loosely to allow rotation, gaps are likely to occur, and grains may fit into the gaps and the rotation may not be performed smoothly, or may be obstructed by the grains that fit into the gaps. However, in this invention, the sleeve 50 that fits over the inner circumferential surface of this joint prevents the generation of a gap. That is, since the load of the upper grain transfer tube 6 is supported by the sleeve 50 that fits over the inner peripheral surface of the joint, and the sleeve 50 has a sealing function to close the joint,
To prevent the generation of gaps, and even if gaps occur, to prevent grains from fitting into the gaps.

Therefore, in this invention, when the direction of the upper grain transfer tube 6 is changed by rotating it around the shaft 40 midway through the horizontal grain transfer tube 5, the grain transfer tube 5 A sleeve 5 that fits over the inner circumferential surface of the joint.
0, in order to receive the load of the upper grain transfer tube 6 and close the joint to perform a sealing function, rotation at the joint is performed smoothly and a gap is created in the joint. It is difficult for this to occur, and even if a gap occurs, grains can be prevented from getting stuck in the gap, and the grains can be transferred smoothly.

Moreover, since the grain transfer cylinder has a structure in which the horizontal part is divided into two parts and joined together, it has the feature that it can be disassembled and assembled relatively easily, and it is extremely convenient to clean the residual grains inside.

Embodiment The illustrated example shows the device of the present invention applied to a grain frying device in a combine harvester, in which the grain culms harvested by the reaping and conveying device 12 at the front of the machine stand 11 are mounted on the upper part of the machine stand 11. The threshing device 13 is configured to perform the threshing process.

Numeral 14 is a tank for storing grains harvested by the threshing device 13, and a grain removal cylinder 15 is connected to the lower part of the tank 14 so that the grains in the tank 14 can be taken out.

At the outer end of the grain removal tube 15, a grain transfer tube 4 having a helix 1 therein is installed to allow the grains supplied from the removal tube 15 to be fried. 4 At the upper end, there is a grain transfer tube 5 with a helix 2 inside.
is arranged horizontally toward the inside of the machine base 11 of the combine, and furthermore, a transfer helix 3 is installed inside the end of the grain transfer cylinder 5, and the grain is discharged from the tip of the machine base 11. A grain transfer cylinder 6 with a cylinder 16 is provided.

The length between the end of the grain removal cylinder 15 and the lower end of the grain transfer cylinder 4 is L.
They are connected by a letter-shaped connecting cylinder 17, and inside the connecting cylinder 17 there is a spiral 1 installed inside the grain removal cylinder 15.
8, a bevel gear 20 fixed to the shaft 19, and a grain transfer cylinder 4.
A bevel gear 22 at an end of a shaft 21 of a transfer helix installed inside the transfer helix 1 is meshed with the bevel gear 22 so that power can be transmitted from the helix 18 to the transfer helix 1.

Further, a grain passage 23 is formed above the connecting cylinder 17, and a transfer blade 2 is provided at the lower end of the single helical shaft 21.
4 is hanging down. The starting end of the helix 1 is constructed with double helical blades wound around it to ensure good grain inheritance.

The connecting cylinder 17 and the take-out cylinder 15 are fastened with screws 25, and the connecting cylinder 17 and the grain transfer cylinder 4 are fixed to the lower end of the grain transport cylinder 4, forming a bevel gear 26 on the outer periphery, and the lower end is connected to the connecting cylinder. The two are rotatably connected by a ring-shaped member 27 that fits into the ring 17.

Reference numeral 28 denotes a hydraulic cylinder, which is supported by a machine frame 29, and a sliding rod 32 having a rack 31 formed on one side is connected to the tip of an internal piston rod 30. 33 is a shaft 34 supported on the machine frame 29
The shaft 34 is a pinion that is fixedly attached to the pinion and is configured to mesh with the rack 31, and a bevel gear 35 that meshes with the bevel gear 26 is fixed to the end of the shaft 34. 36
is a bearing which pivotally supports the other end of the shaft 34.

37, 37 are guide metals for the sliding rod 32, whose bases are rotatably supported on the shaft 34, and are designed to guide the sliding rod 32 at the upper and lower positions of the meshing portion of the rack 31 and the pinion 33. It is configured.

The upper end of the grain transfer cylinder 4 is connected and fixed to the lower opening 38 at one end of the grain transfer cylinder 5, and also has a bevel gear 39 fixed to the upper end of the shaft 21 of the internal helix 1.
A fixed bevel gear 41 is meshed with one end of the shaft 40 of the transfer helix 2 installed in the grain transfer tube 5 to enable transmission. Further, the shafts 20 and 40 are cylindrical shafts, and square holes 44 and 45 are formed in metals 42 and 43 that are fitted and fixed inside the ends of these shaft cylinders 21 and 40,
Square shafts 21a and 40a that fit into the square holes 44 and 45
Bevel gears 39 and 41 are fixed to the respective sides.

The blades 7 are fixed outwardly to the upper end of the metal 42 and are used to splash the grains lifted by the transfer helix 1 to the grain transfer cylinder 5. A cleaning port 9 is provided in the grain transfer tube 4 corresponding to the blade 7 and is normally closed by a lid 46.

The grain transfer tube 5 is separated left and right from the middle portion and divided into a right grain transfer tube 5a and a left grain transfer tube 5b, which are rotatably joined at the intermediate joining flanges 47, 47, The left and right grain transfer tubes 5a, 5b are connected by a locking tool 49 that is secured to the flanges 47, 47 of the opposing transfer tubes 5a, 5b by screws 48.

The sleeve 50 is fitted over the inner circumferential surface of the joint between the grain transfer tubes 5a and 5b, and is embedded so that its surface is flush with the inner circumferential surface of the grain transfer tube 5.

The lower end of the grain transfer cylinder 6 is connected and fixed to the opening formed on the peripheral surface of the other end of the grain transfer cylinder 5, and a bevel gear 5 is fixed to the other end of the shaft 40 of the helix 2 installed inside.
1 and a fixed bevel gear 53 are meshed with the end of the shaft 52 of the helix 3. The shaft 52 is also a cylindrical shaft, and the cylindrical shaft 4
Metals 54 and 55 that fit and secure inside the 0 and 52 ends
Square holes 56 and 57 are formed in the square holes 56 and 57, and bevel gears 51 and 53 are fixed to square shafts 40a and 52a that fit into the square holes 56 and 57, respectively.

A plurality of blades 8 are fixed to the outer periphery of the metal 55 of the transfer helix 3, and are used to scrape the grains sent by the transfer helix 2 into the grain transfer cylinder 6, and also to scrape the grains sent by the transfer helix 2 into the grain transfer tube 6. A cleaning port 10 is opened in the transfer tube 6 and is normally closed by a lid 58.

59 is a hydraulic cylinder, the base of which is pivotally supported on the upper part of the grain transfer cylinder 4, and the tip of a piston rod 60 installed therein is pivotally connected to a protruding rod 61 that projects laterally from the grain transfer cylinder 6. be. Reference numeral 62 is a supporting frame, which pivotally connects the other end of the protruding rod 61 and the end of the grain transfer tube 5.

The grains in the tank 14 are transferred from the grain removal tube 15 to the grain transfer tube 4 via the grain passage 23 of the connecting tube 17 by the helix 18, and are fried by the transfer helix 1.

The grains fried onto the upper end of the grain transfer tube 4 by the transfer helix 1 are supplied to the grain transfer tube 5 on the side by rotation of the blades 7. The blades 7 allow the grains to be transferred smoothly to the grain transfer tube 5 which bends laterally, but if the blades 7 become entangled with straw, etc., the lid 46 must be removed. This straw waste etc. can be easily removed from the cleaning opening 7.

The grains in the grain transfer tube 5 are transferred by the transfer helix 2 and supplied to the grain transfer tube 6, but the blades 8 located at the lower end of the transfer helix 3 ensure that the grains are transferred. Then, it is transferred by the transfer helix 3 and taken out from the discharge cylinder 16.

If the mixed straw etc. gets wrapped around the blade 8,
These straw debris can be easily removed from the cleaning port 10 by removing the lid 58.

Next, when it is desired to release the grains to the side of the combine, the hydraulic cylinder 28 is operated and the piston rod 30 is slid up and down, and the sliding rod 32 slides and the rack 31 of the sliding rod 32 Pinion 3 meshing
3 is rotated. Therefore, the shaft 34 to which the pinion 33 is fixed is rotated, and the bevel gear 35 fixed to the end of the shaft 34 rotationally drives the bevel gear 26 at the lower end of the grain transfer tube 4, so that the grain transfer tube 4 is connected. The ejection tube 1 is rotated around a ring-shaped member 27 that fits into the tube 17.
6 can be rotated to an appropriate position in the horizontal plane.

Further, the upper and lower positions of the meshing portion of the rack 31 of the sliding rod 32 and the pinion 33 are guided by guide metals 37, 37, so that they can slide accurately. Since the base is rotatably supported, the engagement between the rack 31 and the pinion 33 remains constant even if the pinion shaft 34 and sliding rod 32 are bent due to overload.

Next, when it is desired to change the vertical position of the discharge tube 16, the hydraulic cylinder 59 is operated to extend and retract the piston rod 60, and the grain transfer tube 6 is driven by the protruding rod 61, so the grain transfer tube 5a , 5b rotates at the joint flanges 47, 47, and the discharge tube 1
The vertical position of 6 can be adjusted.

The joint portions of the left and right grain transfer cylinders 5a, 5b are configured to be rotatable by joint flanges 44, 47, but the left and right connections are relatively loose, and the grain transfer cylinders 6, which are heavy, A gap is likely to occur between the joining flanges 47 and 47 due to the applied load, but since the sleeve 50 is fitted across the joint, grains will fit into this gap and will hinder rotational movement. It never happens.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, in which Fig. 1 is a sectional view of the main parts developed, Fig. 2 is a perspective view,
FIG. 3 is a side sectional view, and FIG. 4 is a rear view. In the figure, numerals 1, 2, 3 are transfer helices, 4, 5,
6 is a grain transfer cylinder, 40 is a shaft, and 50 is a sleeve.

Claims (1)

[Scope of utility model registration request] The upper and lower grain transfer tubes installed internally to interlock the rotation of the helix and the horizontal grain transfer tubes located between these upper and lower grain transfer tubes are connected, and the horizontal grain transfer tube is connected to the upper and lower grain transfer tubes in the middle. A helical screw that is joined so as to be rotatable around an axis, a sleeve is fitted over the inner circumferential surface of this joined part, and a flange formed on the outer periphery of the joined part is held and connected by a locking tool. Direction change device for grain frying equipment.