JPH026751Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is mainly a rice grain transfer device used in a grain tank mounted on a combine harvester. Specifically, the rice grain transfer device is provided with a folding side conveyor that can be stored by bending, and between the conveyor and the base side conveyor. , relates to a paddy transfer device with a drive connection connected when assembled in a straight line.

Mainly in large combine harvesters, etc., a grain tank is mounted on the side of the threshing section, a vertical conveyor is provided on the side of the tank, and a horizontal conveyor is installed above the tank, which communicates with the vertical conveyor. The paddy threshed in the threshing section is supplied and stored in the tank, and the paddy in the tank is transferred upward by the vertical conveyor and supplied to the horizontal conveyor. The paddy is transferred laterally and discharged to the outside from a discharge port provided at the side end of the traverse conveyor.

By the way, the cross conveyor is installed horizontally at the top of the grain tank and is long, so when it is stored, a part of the conveyor protrudes outside of the grain tank, which not only gets in the way but also detracts from its appearance. It's bad.

Therefore, the traverse conveyor is divided into a base side and a bending side, and the bending side conveyor is bendably connected to the base side conveyor, and a driving connection part is provided between both the conveyors, When discharging paddy from the grain tank, both the conveyors are connected in a straight line, and rotational power is transmitted from the base side conveyor to the bending side conveyor via the drive connection part, so that the rice grains can be discharged through each conveyor. It is known that the folding side conveyor is bent with respect to the base side conveyor and compactly stored in the upper part of the grain tank when the rice is not being discharged.

However, when the above-mentioned cross conveyor is stored, when the folding side conveyor is folded and stored with respect to the base side conveyor, if the cross conveyor is operated by mistake, the base side conveyor may be damaged. The paddy is discharged from the tip, resulting in a loss of paddy.Moreover, since the conveyor is driven with the tip of the section side conveyor open,
It was extremely dangerous.

This invention was devised in view of the above problems, and its purpose is to automatically cut off the power transmitted to the base conveyor when the bending side conveyor is folded and stored relative to the base side conveyor. By doing so, it is an object of the present invention to provide a paddy transporting device that can prevent the loss of paddy and is highly safe.

Therefore, the configuration of the present invention is such that the drive shaft of the base conveyor is movable in the axial direction so that it moves toward the base end of the base conveyor when the drive coupling section is connected, and the base end of the base conveyor is A power relay body that interlocks with the input shaft is provided in the section, a clutch is provided between the relay body and the drive shaft that is engaged when the drive shaft moves, and a bending side conveyor is connected to the base side conveyor. When discharging paddy by connecting the two conveyors in a straight line, the drive shaft of the base conveyor is moved toward the base end using the drive connection section provided between the two conveyors, and the clutch is engaged. Rotational power is transmitted from the input shaft to both of the conveyors to perform the paddy discharge operation, and when the paddy is stored other than during the paddy discharge operation, the bending side conveyor is bent relative to the base side conveyor to control the drive. The shaft is moved axially outward to disengage the clutch and cut off power transmission from the input shaft to the drive shaft.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The paddy transfer device according to the present invention will be explained below with reference to embodiments of the drawings.

The combine shown in the drawing has a traveling device 2 at the bottom of a machine body 1, a threshing section 3 and a grain tank 4 mounted in parallel on the top, and a reaping section 5 at the front of the machine body 1. A steering column 6 and a driver's seat 7 are provided at the upper part of the machine body 1 and behind the reaping section 5.

The grain tank 4 is equipped with a paddy transfer device 8, which includes a screw conveyor (not shown) provided at the inner bottom of the tank 4 in the longitudinal direction of the machine body, and A vertical conveyor 9 is provided vertically in communication with the outer end of the conveyor in the paddy transfer direction on the outside, and a vertical conveyor 9 is disposed above the tank 4, and a side end is connected to the upper part of the vertical conveyor 9 for horizontal and vertical movement. The transverse conveyor 10 is connected to the transverse conveyor 10 in an internally communicating manner.

The paddy harvested in the reaping section 5, threshed in the threshing section 3, and supplied and stored in the grain tank 4 is transferred upward by the vertical conveyor 9 and supplied to the horizontal conveyor 10. However, it is intended to be transferred laterally by this transverse conveyor 10 and discharged to the outside from a discharge port 10a at the tip end of the conveyor 10.

The transverse conveyor 10 is divided into two parts, a base side and a bending side, and a bending side second conveyor 12 is bendably connected to the base side first conveyor 11. The edges of the guide tube 11a of the first conveyor 11 and the guide tube 12a of the second conveyor 12 are connected by a thread 13, and the first conveyor 1
A second conveyor 12 is bendably connected to the first conveyor 11, and a drive shaft 11c having a spiral 11b is provided in the guide tube 11a of the first conveyor 11,
In addition, a driven shaft 12c having a spiral 12b is provided in the guide tube 12a of the second conveyor 12, and a female,
Drive connection section 14 consisting of male connection bodies 14a, 14b
When the second conveyor 12 is linearly connected to the first conveyor 11 with a , each spiraler 11b, 12b is rotated to transfer the paddy, and the second conveyor 11 is connected to the first conveyor 11.
When the conveyor 12 is bent, the female and male connectors 1
4a and 14b are separated, and the driven shaft 12c is disconnected from the drive shaft 11c.
The conveyor 12 is bent.

Therefore, in the transverse conveyor 10 of the paddy transfer device 8 as described above, the drive shaft 1 of the first conveyor 11
1c is movably supported in the axial direction via a bearing body 15, and when the second conveyor 12 is connected to the first conveyor 11, the drive shaft 11c is moved toward the base end side of the first conveyor 11. , a power relay body 17 interlocked with the input shaft 16 is provided at the base end of the first conveyor 11, and a clutch is provided between the relay body 17 and the drive shaft 11c that is engaged by movement of the drive shaft 11c. 18 were established.

Specifically, the relay body 17 is composed of a first bevel gear 17a and a second bevel gear 17b that meshes with the gear 17a, and the first gear 17a is arranged on the base side of the guide cylinder 11a of the first conveyor 11. The second gear 17b is fixed to the input shaft 16 supported orthogonally to the drive shaft 11c.
is inserted into the base side of the drive shaft 11c to be freely rotatable and movable in the axial direction, and the second gear 17b is connected to the second gear 17b.
The drive shaft 11c can be moved in the axial direction.

Further, the second gear 17b is mounted on the drive shaft 11cc.
A clutch plate 19 is fixed at a position facing the second gear 17b, and pawl clutches 18, 18 which can engage with each other are provided on opposing surfaces of the clutch plate 19 and the second gear 17b. A spring 20 is interposed between the drive shafts 17b and 17b to constantly urge the drive shaft 11c outward in the axial direction, so that when the second conveyor 12 is connected to the first conveyor 11,
The driven shaft 12c of the conveyor 12 moves the drive shaft 11c of the first conveyor 11 toward the proximal end in the axial direction against the spring 20, and engages each of the pawl clutches 18 to engage the first gear 17a of the input shaft 16. The rotational power transmitted from the drive shaft to the second gear 17b is transmitted to the drive shaft 11c via the pawl clutches 18 and the clutch plate 19, and from the drive shaft 11c to the driven shaft 12c via the drive connection portion 14. Do it as you please. When the second conveyor 12 is folded and stored with respect to the first conveyor 11, the pushing force of the driven shaft 12c on the drive shaft 11c is released, and the spring 20 moves the drive shaft 11c axially outward. Then, each pawl clutch 18
are separated from each other to cut off power transmission from the input shaft 16 to the drive shaft 11c.

In the embodiment, the clutch plate 19 and the second gear 1
Although a pawl clutch 18 is provided between the pawl clutch 18 and the pawl clutch 18, a friction clutch may also be used as the pawl clutch 18. When this friction clutch is used, the first and second conveyors 11 and 12 are connected to transfer the paddy. When a blockage of paddy occurs inside the clutch, the clutch rotates idly due to the resistance of the paddy applied to each spiraler 11b, 12b, and the drive shaft 11
By cutting off the power transmission to the drive shaft 12c and the driven shaft 12c, damage to the first and second conveyors 11 and 12 can be prevented.

The paddy transfer device of the present invention is constructed as described above, and when taking out the paddy in the grain tank 4 to the outside, as shown in FIG. is connected to the first conveyor 11 in a straight line.

By doing so, the driven shaft 12c of the second conveyor 12 is coupled to the drive shaft 11c of the first conveyor 11 via the drive connection part 14, and at the same time, the driven shaft 12c moves the drive shaft 11c to the base end side in the axial direction. , each pawl clutch 18 between the second gear 17b and the clutch plate 19 constituting the power relay body 17 is engaged, and the first gear 17a is pushed from the input shaft 16.
The rotational power transmitted to the second gear 17b via the clutches 18 and the clutch plate 19 is transmitted to the drive shaft 11c.
1c to the driven shaft 12c via the connecting portion 14, and the first and second conveyors 11, 12
The spirals 11b and 12b are rotated.

In this way, the paddy in the grain tank 4 is transferred upward by the vertical conveyor 9, supplied to the first conveyor 11 of the horizontal conveyor 10, and then transferred from the first conveyor 11 to the second conveyor 12. Then, it is discharged to the outside from the side end of the second conveyor 12.

In addition, when the paddy is not being taken out, the second conveyor 12 of the transverse conveyor 10 is bent and stored with respect to the first conveyor 11, and when stored, as shown in FIG. The drive shaft 11 of the first conveyor 11 by the driven shaft 12c of
The pushing force on c is released, and the drive shaft 11c is moved axially outward by the spring 20,
The pawl clutches 18 provided between the second gear 17b and the clutch plate 19 are separated, and the rotational power from the input shaft 16 to the drive shaft 11c is cut off.

As explained above, in the paddy transfer device of the present invention, the drive shaft of the base side conveyor is movable in the axial direction, and when the bending side conveyor is connected to the conveyor, the drive shaft is moved toward the base end side in the axial direction. , a power relay body interlocked with the input shaft is provided at the base end of the base side conveyor, and a clutch is provided between the relay body and the drive shaft that is engaged when the drive shaft moves; When the bending side conveyor is folded and stored with respect to the base side conveyor other than during operation, the drive shaft is moved axially outward and the clutch is separated, thereby removing the drive from the input shaft. Since the rotational power reaching the shaft is cut off, when the bending side conveyor is folded and stored,
In other words, when the side end of the base side conveyor is open, the drive shaft is not driven, that is, the base side conveyor is not operated by mistake, and the paddy is removed from the side end open part of the base side conveyor. This can prevent the paddy from being discharged and resulting in loss of paddy, and in addition, when the side end of the base side conveyor is open, the drive shaft is not driven, which can lead to personal accidents during inspections, etc. This resulted in a product with excellent safety.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a combine harvester incorporating the paddy transfer device of the present invention, Figs. 2 and 3 are enlarged sectional views of the same transfer device, and Fig. 2 is a state of connection between the base side conveyor and the bending side conveyor. FIG. 3 is a diagram showing a state in which the folding side conveyor is folded and stored with respect to the base side conveyor. 11... Base side conveyor, 11c... Drive shaft,
12...Bending side conveyor, 14...Drive connection part,
16...Input shaft, 17...Power relay body, 18...
Clutch.

Claims (1)

[Scope of utility model registration request] A folding side conveyor 12 that can be stored by folding is provided, and the conveyor 12 and the base side conveyor 1 are connected to each other.
1, the paddy transfer device is equipped with a drive connecting portion 14 connected to the base conveyor 11 when assembled linearly, and the drive shaft 11c of the base side conveyor 11 is movable in the axial direction, and the connecting portion 14 When connected, a power relay body 17 is provided at the base end of the base side conveyor 11 to move toward the base end side of the base side conveyor 11, and a power relay body 17 that interlocks with the input shaft 16 is provided. Between the drive shaft 11c,
A paddy transfer device characterized by being provided with a clutch 18 that is engaged when the drive shaft 11c moves.