JPH046511Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention provides a first endless rotating band for pinching and conveying grain culms from a reaping device to a grain culm pinching and conveying device for threshing, with the pinching surface being perpendicular to the pinching surface of the conveying device. Alternatively, a second belt is provided which is substantially orthogonal to each other and is swingable in the direction of the culm around the axis on the conveyance starting end side, and which relays and conveys the grain culm from the first belt to the conveyance device. The present invention relates to a grain culm conveying device for a combine harvester, in which an endless rotating belt-like body is provided with a clamping surface perpendicular or almost perpendicular to a clamping surface of the conveying device.

The above-mentioned grain culm conveying device is configured such that the handling depth is adjusted by changing and adjusting the position where the threshing conveying device transfers and clamps in the direction of the culm by adjusting the swing of the first belt-shaped body. If grain culm is directly supplied from the grain culm to the threshing conveyance device, when the conveyance end of the first strip is far away from the threshing conveyance device, that is, when the culm is long, the threshing conveyance device In order to transfer and hold the grain culms from the grains, it is necessary to do so at a position farther away from the grain tip side than the gripping position by the first belt-shaped body, and in general, when the grain culms are transferred to the threshing conveyance device, the grain culms are Since the grain culm is changed from an upright position to a sideways position, transportation problems such as disturbed grain culm posture are likely to occur. This arrangement is designed to avoid the above-mentioned transportation troubles by relaying the materials.
However, conventionally, because the second strip or the body is located above and below the conveyance terminal side of the first strip, the swing stroke of the first strip cannot be made sufficiently large, and the handling depth adjustment range is limited. had become relatively small.

The purpose of the present invention is to make it possible to widen the adjustment range of handling depth and to make it easy to modify.

A characteristic configuration of the present invention is that in the above-mentioned grain culm conveying device for a combine harvester, the supporting member of the second belt-shaped body is divided into a conveyance start end side portion and a conveyance end side portion, and the conveyance end side of the support member is formed separately. The part is swingable around a fulcrum on the conveyance start end side so that the conveyance end portion of the second endless rotating belt-like body can be moved in a direction in which the conveyance end portion approaches and moves away from the conveyance end portion in the direction along the conveyance clamping surface of the conveyance device. a driving wheel body of the second endless rotating belt-shaped body,
This is because it is attached to the transport start end side portion of the support member.

In other words, when the conveyance end portion of the second belt-shaped body is swung toward and away from the threshing conveyance device, the gripping position of the grain culm from the second belt-shaped body by the threshing conveyance device changes in the direction of the culm. . Moreover, the second
Since the position of the transport start end side of the endless rotating belt does not change, the transfer and clamping position from the first endless rotating belt remains constant regardless of the above-described swinging movement towards and away from the transport end side. Therefore, the first priority is to adjust the handling depth.
Two types: one using a band-like body and one using a second band-like body.
It has become possible to advantageously adjust the handling depth by being able to do it in stages, ensuring a wide adjustment range, and keeping the handling depth constant even if the grain culm length changes widely.

Moreover, in order to enable two-step adjustment, it is necessary to divide the first belt-like body into a conveyance start end side portion and a conveyance end side portion, and to configure a means in which both of these portions can be swing-adjusted; It is conceivable to configure the entire band-like body so that it can be adjusted in swing.
In the former case, it is necessary to make the conveyance system using the first belt-shaped body into two conveyance systems, and to provide a flexible part in the drive system of both conveyance systems to enable the belt-shaped body to swing. In this case, it is necessary to provide the drive system with a flexible part that allows the second band-shaped body to swing, and in any case, a problem arises that is economically disadvantageous. In contrast, as in the present invention, if only the portion of the second belt-shaped body on the conveyance end side that is not wound around the drive wheel is changed in position, there is no need to use two conveyance systems. There is no need to provide a flexible part in the drive system, and a simple modification of just dividing the band support member into the two parts can be completed, which is advantageous from an economic point of view.

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, a crawler-type traveling machine body having a threshing section 1 and a driving section 2 is provided at the front part with lifting devices 3a to 3d for the planted grain culm and a reaping device 4, and the reaped grain culm is placed at the rear of the machine body. A combine harvester is constructed by connecting a reaping section including a vertical conveying device 5 for conveying and supplying the grain to the starting end of the threshing section 1.

As shown in FIGS. 1 and 2, the vertical conveyance device 5 consists of two sets of lifting devices 3a and 3b on the left side of the machine to merge the harvested grain culms and move them to the rear of the machine. A pair of first rotating bodies 6, 6, which are pulled into the machine, two sets of lifting devices 3c, 3 on the right
a pair of second rotating bodies 7 that are caused by d to merge the harvested grain culms and scrape them toward the rear of the machine;
7. A first conveying section for transporting grain stems from the first rotary bodies 6, 6 to the rear of the machine by cooperation of the stock side clamping endless rotation chain 8 and the ear side locking endless rotation chain 9; It consists of a base side clamping endless rotation chain 10 and a tip side locking endless rotation chain 11, and the second
A second conveyor configured to convey the grain stems from the rotating bodies 7, 7 to the rear of the machine, and to merge the grain stems from the first conveyance section to the conveyance terminal end of the stock side chain 10. part, the stock side first endless rotary chain 12 having a grain culm clamping surface substantially orthogonal to the grain culm clamping surface of the threshing feed chain 1a, and a grain culm clamping surface of the threshing feed chain 1a that is perpendicular or almost perpendicular to the grain culm clamping surface; A second endless rotary chain 13 on the plant side side which has a clamping surface and relays and conveys the grain culm from the first chain 12 to the threshing feed chain 1a, the above-mentioned ear end side locking chain 11, and threshing from the second chain 13. It consists of a stock removal device 14 etc. that pushes out the stock side of the grain stalks supplied to the feed chain 1a so as to turn sideways, and it transports the grain stalks from the second conveyance section to the rear of the machine, and at the end of the conveyance. , the third conveying section supplies the grain culm to the starting end of the threshing feed chain 1a in a sideways posture by widening the interval between the second chain 13 and the ear-side chain 11 from the conveying starting end side. is provided.

The stock side first chain 12 is configured to be swingable in the direction of the culm of the grain culm to be transported around the axis P on the transport start end side by a hydraulic cylinder (not shown), and by the swinging operation. , the gripping position of the second chain 13 on the grain culm from the first chain 12 can be changed and adjusted in the direction of the culm.

As shown in FIGS. 1 and 2, the three grain culm contact rocking centers 15 are arranged vertically in parallel, and each sensor 15 is raised to act on the grain culm. The switch 16 is provided in the reaping section so as to protrude into the lifting path of the left-side lifting device 3a, and the switch 16 is connected to each sensor 15 so as to be turned on and off in conjunction with the rocking of the sensor. The culm length detecting device is configured to determine whether the grain culm length is standard, longer or shorter by knowing whether the grain is in the cutting or cutting state, and the culm length detecting device and the first Based on the information from the volume (not shown) that detects the swing angle of the chain 12, the control valve (not shown) of the cylinder is automatically operated so that the insertion length of the grain culm into the handling chamber is within the set range. A control mechanism (not shown) is installed to allow the work to be done while keeping the handling depth approximately constant regardless of changes in grain culm length.

As shown in FIG. 8, a member 20 supports the second chain 13 via a driving sprocket 17 and a pair of idler sprockets 18 and 19.
is divided into a part 20a to which the drive sprocket 17 and the idler sprocket 18 at the transport start end side are attached and fixed to the machine body, and a part 20b to which the idler sprocket 19 at the transport end side is attached, and the The terminal end side support member portion 20b,
The pivot shaft 21 and a pair of bolts 22, 22 each inserted into a pair of elongated holes in the starting end side support member portion 20a.
Accordingly, by freely connecting the starting end side support member portion 20a around the pivot shaft 21 as an example of a fulcrum and fixing with the bolt 22, and by changing the mounting position, As shown in FIGS. 3A and 3B, the conveying end portion of the second chain 13 approaches and separates from the threshing feed chain 1a in the direction along its clamping surface, and the threshing feed chain 13 moves toward and away from the grain culm. The structure is such that the position of the eed chain 1a held by the eed chain 1a can be changed and adjusted in the direction of the culm. That is, the reference handling depth maintained by the automatic control is changed and set by the second chain 13.

In addition, 23 shown in FIG. 3 is a tension wheel for the second chain 13, 24 is a safety cover that covers the upper side of the sprocket 19 side of the second chain 13, and 25 is a grain culm clamping tool. and,
The safety cover 24 has the bolts 22, 22 inserted through its elongated holes, and the support shaft 26 of the sprocket 19.
As a result, the support shaft 26 is attached to the terminal end side support member portion 20b.
The second chain 13 can be freely changed in position and fixed with bolts 22 around the second chain 13, so that when the second chain 13 is changed in position, the second chain 13 can be moved to a predetermined working position or to avoid interference with other devices. is being used. In addition, the grain culm clamping tool 25 has a pivot shaft 28 attached to a support member 27 that is biased toward the second chain 13, and a bolt 2 that is inserted into a long hole of the clamping tool 25.
9, the position can be freely changed around the pivot shaft 28 and fixed by the bolt 29,
As the position of the second chain 13 is changed, the attachment position can be adjusted along the second chain 13.

Further, the operating lever 30 shown in FIG. 2 is for operating the threshing clutch.
1 is for operating the reaping clutch.
As shown in FIG. 4, when the reaping clutch lever 31 is operated to the on position (ON), the pushing force of these levers 30 and 31 causes the threshing clutch lever 30 to be placed in the off position (OFF). The culms are shaped so that they are in contact with each other so that they can be operated to the ON position even when the culms are in place.

The chain 1a, the first chain 12 and the second chain
Each of the chains 13 can be changed to a belt or the like, and the threshing feed chain 1a is referred to as the grain culm clamping and conveying device 1a for threshing, the first chain 12 is referred to as the first endless rotation belt-like body 12, and the second chain 13 is referred to as the second endless rotating band 13, and the sprocket 17
is referred to as the driving wheel body 17.

The present invention can also be applied when the first chain 12 is provided for manual operation.

[Brief explanation of the drawing]

The drawings show an embodiment of the grain culm conveying device for a combine harvester according to the present invention, FIG. 1 is a side view of the front part of the combine, FIG. 2 is a schematic plan view of the vertical conveying device, and FIG. FIG. 4 is a plan view of the chain arrangement section and a perspective view of the clutch lever. 1a...Transport device for threshing, 4...Reaping device, 1
2... First endless rotating belt, 13... Second endless rotating band, 17... Driving wheel, 20... Supporting member, 20a... Starting end side support member portion, 21... Fulcrum, 20b...Terminal side support member portion, P...Axis core.

Claims (1)

[Scope of utility model registration request] A first endless rotating belt-like body 12 that pinches and conveys the grain culm from the reaping device 4 to the threshing grain culm clamping and conveying device 1a side.
is provided with a clamping surface perpendicular or almost perpendicular to the clamping surface of the conveyance device 1a, and is swingable in the direction of the culm around the axis P on the conveyance starting end side, and the first endless A combine harvester in which a second endless rotating band 13 for relaying grain culms from the rotating band 12 to the conveying device 1a is provided in such a state that its clamping surface is perpendicular or almost perpendicular to the clamping surface of the conveying device 1a. In the grain culm conveying device, the support member 20 of the second endless rotating belt-like body 13 is divided into a conveyance start end side portion 20a and a conveyance end side portion 20b,
The conveyance terminal end side portion 20b of the support member 20 can be freely changed in position in a direction in which the conveyance terminal end of the second endless rotating strip 13 approaches and separates in a direction along the conveyance clamping surface of the conveyance device 1a. , the conveyance start end side part 2 can swing around the fulcrum 21 on the conveyance start end side.
0a, and the driving wheel body 17 of the second endless rotation belt-shaped body 13 is connected to the support member 2.
Grain culm conveying device of a combine attached to the conveyance start end side portion 20a of 0.