JPH10304749A - Sorting shelf driving device for thresher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the sorting shelf driving device of a thresher for simplifying a structure, improving a spread state, improving carrying ability and improving sorting performance by reciprocatingly moving a sorting shelf back and forth and sorting grains and waste straw. SOLUTION: A rotationally driven eccentric drive shaft 38 and a supporting metal 44 for pivotally supporting an eccentric part 43 at the horizontal direction almost center part of the eccentric drive shaft 38 are provided on the front part of the sorting shelf 37 for receiving and sorting the grains and the waste straw, etc. The front receiving part 45 of the front part connected to the supporting metal 44 and the vertical direction almost center part of sorting arms 46 provided on both left and right sides are pivotally supported by a supporting shaft 47, the upper end part 48 is supported by a sorting shelf receiving metal 49 at the front part of the sorting shelf 37, the lower end part 50 is supported by the threshing receiving metal 51 of the front machine wall 27a of the thresher 2, the sorting shelf 37 is reciprocatingly moved back and forth and the grains and the waste straw are sorted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support metal receiving portion for receiving an eccentric portion of a rotationally driven eccentric drive shaft at the front of a sorting shelf for sorting and receiving grains, straw chips, and the like. The upper and lower ends of the sorting arm are supported by a sorting shelf receiving metal of the sorting shelf, and the lower end of the sorting arm is supported by a threshing receiving metal of the threshing machine. The present invention relates to a sorting rack driving device that reciprocates to separate grains and straw waste.

[0002]

2. Description of the Related Art Threshed grains, straw chips and the like are supplied onto an oscillating sorting shelf, and an eccentric cam provided on a drive shaft that is rotationally driven has a supporting metal provided on the oscillating sorting shelf. And the swing sorting shelf is suspended and supported by a support rod, so that when the drive shaft is driven to rotate, the swing sorting shelf is interposed via the eccentric cam and the support metal. It swings up and down and back and forth, and is sorted into grains and straw chips, and the sorted grains are collected and the straw chips are discharged outside the machine.

[0003]

Since the swing sorting shelf is supported in a suspended state, the structure is complicated and there is a problem in strength, and the supplied grains and straw waste However, the present invention is intended to solve these problems, which are sometimes poor in the state of diffusion and low in transportability.

[0004]

To this end, the present invention provides an eccentric drive shaft 38 which is driven in rotation at the front of a sorting shelf 37 for sorting and receiving grains and straw chips, and the like. Support metal 4 for supporting the eccentric part 43 at the substantially central part in the left-right direction
And a front support portion 45 connected to the support metal 44 and a substantially central portion in the vertical direction of a selection arm 46 provided on both left and right sides are supported by a support shaft 47 to form an upper end portion 4.
8 is supported by a sorting shelf receiving metal 49 at the front of the sorting shelf 37;
The lower end portion 50 of the threshing machine 2 is supported by a threshing receiving metal 51 on the front wall 27a of the threshing machine 2 and reciprocates the sorting shelf 37 back and forth to sort the grains and straw waste. The structure of the sorting shelf drive device is adopted.

[0005]

The grain and straw chips subjected to the threshing process are supplied onto a sorting shelf 37, and a supporting metal 44 pivotally supporting an eccentric portion 43 of an eccentric drive shaft 38 which is driven to rotate rotates. The front receiving portion 45 connected to the supporting metal 44 and the upper and lower central portions of the sorting arms 46 provided on the left and right sides are connected to a supporting shaft 47.
The upper end 48 is supported by a sorting shelf receiving metal 49 in front of the sorting shelf 37, and the lower end 50 is supported by a threshing receiving metal 51 on the front wall 27a of the threshing machine 2. When the eccentric drive shaft 38 is rotationally driven, the sorting shelf 37 reciprocates in the front-rear direction via the support metal 44 and the sorting arms 46, 46, and is sorted into grains and straw chips. The collected grains are collected, and the straw waste is discharged outside the machine.

[0006]

The support metal 4 supporting the eccentric drive shaft 38
And a sorting arm 4 supported by the supporting metal 44.
6 and 46, the sorting shelf 37 is supported, so that the configuration is simple. Also, by moving the sorting shelf 37 back and forth, the straw waste floats on the sorting shelf 37, For this reason, the diffusion state became favorable, and the transporting ability was further improved, thereby improving the sorting performance.

[0007]

An embodiment of the present invention will be described below with reference to the drawings. The sorting shelf driving device 3 of the sorting shelf 37 installed in the threshing machine 2 mounted on the combine 1 will be illustrated and described. A traveling device 6 in which a pair of left and right traveling crawlers 5 traveling on the soil surface is stretched under the chassis 4 of the combine 1.
A grain storage tank 8 is provided above the chassis 4 for threshing the harvested culm which is conveyed while being sandwiched by the feed chain 7, and for selectively collecting and recovering the threshed grains for temporary storage. Threshing machine 2 is mounted.

At the front of the threshing machine 2, a weeding body 9 for weeding the trichomes from the front end position, a raising device 10 for raising the weeded culms, and a raised culm 10 A cutting blade device 11 for cutting and conveying the cut stalks rearward,
The reaper 13 provided with the grain stalk raking and conveying device 12 and the like to be delivered to the feed chain 7 is moved by the hydraulically driven telescopic cylinder 1.
By means of 4, it is configured to be able to move up and down on the soil surface.

On one side of the threshing machine 2, an operating device 15 for controlling the operation of the combine 1 and a cockpit 16 on which an operator rides are provided, and an engine 17 is mounted below the cockpit 16. At the same time, a grain storage tank 8 is installed at the rear. These traveling device 6, threshing machine 2, reaper 13,
The body 18 of the combine 1 is constituted by the engine 17 and the like.

In the grain culm transporting path formed by the grain stalk raking and conveying device 12 of the reaper 13, the culm is supplied to the threshing machine 2 by contacting the grain culm to be cut and conveyed. And a grain stalk sensor 19 for detecting
Transmission mission case 2 mounted on the front end of chassis 4
A vehicle speed sensor 21 for detecting the traveling vehicle speed based on the output rotation speed is provided in the transmission path of 0.

The threshing machine 2 is shown in FIGS. 1 to 4 and FIGS.
As shown in FIG. 10, the threshing chamber 22 and the dust treatment chamber 2
Third and second processing chambers 24 are provided, and sorting chambers 25 are arranged at the bottom. In the threshing room 22, a large number of various handling teeth 26a are planted, and a handling cylinder 26 for threshing the grain stalks.
Are mounted on the front machine wall 27a and the middle machine wall 27b in the front-rear direction by a handle cylinder shaft 28.

In a second processing chamber 24 located in front of the threshing chamber 22 in parallel with the right side of the threshing chamber 22, the unthreshed processed material (secondary material) to be reduced is transported forward while being processed. do it,
The second processing cylinder 29 in which a large number of processing teeth 29a to be leaked to the sorting chamber 25 are planted, and the dust processing chamber 23 located on the rear side.
Inside, a dust processing cylinder 30 in which a number of various processing teeth 30a for reprocessing a part of the unthreshing processing material supplied from the threshing chamber 22 are connected to a coaxial processing cylinder shaft 31. Then, it is configured to extend rearward from the threshing room 22 and to be internally mounted on the shaft by the processing cylinder shaft 31.

The second processing chamber 24 is provided with a grain sensor 24a for detecting a grain mixed in an unthreshed processed material (second material) supplied in a reduced manner. Reference numeral 24a denotes an ON-OFF switch type that is turned ON when a grain hits, and is configured to detect the amount of grain mixed in the second product based on the number of ONs within a predetermined time. A feed chain 7 for pinching and transporting the grain stalk and a holding rod 32 for pinching the grain stalk are arranged along the handle 22a on the left side of the threshing chamber 22 in plan view, and the feed cylinder 7
, A handling net 34 surrounding the lower part of the outer peripheral edge of the handling teeth 26a to the handling cylinder cover 33, a handling cylinder processing receiving plate 34b formed in a lattice shape on the transfer terminal end side, and processing teeth of the second processing cylinder 29. 2
9a, a processing net 35a that surrounds the lower part of each outer peripheral edge of the processing teeth 30a of the dust processing cylinder 30 with a step, and a dust processing processing receiving plate 35b are provided respectively. Dust receiving plate 35
b has a configuration in which a plurality of dust guide rods 35c for guiding a falling object are provided from the middle part in the transport direction to the rear side while being formed in a lattice shape. At the transfer end portion of the dust processing chamber 23, the waste such as straw chips and culms, etc., processed in the dust processing chamber 23 are discharged toward the horizontal body as shown in FIG. Discharge port 36 is provided.

In the sorting room 25, threshing is performed in the threshing room 22, threshed from the handling net 34 and the handling room processing receiving plate 34 b, and threshing is performed in the second processing room 24 and the dust processing room 23. A vertically long sorter that sorts while transferring the processed materials that have been processed and leaked from the processing nets 35a and the dust receiving plate 35b and the dust discharged from the outlet 36 of the dust processing chamber 23. The sorting shelf 37 driven by the shelf driving device 3 is arranged along the axial direction of the handling cylinder 26, with the front part facing upward, the eccentric drive shaft 38 provided on the front side part, and extended rearward. And a receiving cam 39 provided at the rear end thereof to reciprocate.

A plurality of blower blades 42a provided inside a blower cylinder 40 are mounted on the lower part of the sorting shelf 37 at the start end (upper side) in the transfer direction, and the sorting wind path is generated by generating a sorting wind by rotation. A blower 42 for blowing air to 41 is provided. The sorting shelf drive device 3 is provided with a support metal 44 in which a bearing 44a for supporting an eccentric portion 43 substantially at the center in the left-right direction of the eccentric drive shaft 38 that is driven to rotate is fitted, and the eccentric portion 43 is pivoted by the bearing 44a. It is supported. The support metal 44 is provided with a front receiving part 45 projecting to the front part connected thereto, and has a configuration in which an insertion hole 45 a is provided in the center part of the front receiving part 45.

On the left and right sides of the front receiving portion 45 of the support metal 44, sorting arms 46, 46 are provided.
Insertion holes 46a, 4 provided substantially at the center in the vertical direction of
6a and an insertion hole 45 of the front receiving portion 45 of the support metal 44.
a, a support shaft 47 is inserted and the sorting arms 46, 46 are supported by the support shaft 47.
It has a configuration with retaining.

Support pins 49b are inserted into the insertion holes 48a, 48a of the upper end 48 of the selection arms 46, 46, and the insertion holes 49a of the selection shelf receiving metal 49 provided on the front plate 37b of the selection shelf 37. The sorting shelf receiving metal 49 is supported on both left and right sides, and the insertion holes 50a, 50a of the lower end 50 are provided.
Threshing receiving metal 51 provided on front wall 27a of threshing machine 2
A support pin 51b is inserted into the insertion hole 51a, and is supported on the left and right sides of the threshing receiving metal 51. The support pins 49b and 51b are configured to be prevented from falling off.

At the end of the sorting shelf 37 in the transfer direction, on the left and right sides of the lower side of a second sorting shelf 70 described later on the lower side, the supporting rods 3 project from the second sorting shelf 70 in the left-right direction.
The receiving cams 39, 39 are rotatably supported at 9a, 39a,
The left and right receiving cams 39, 39 are configured to slide back and forth within sliding plates 39b, 39b provided on the left and right machine walls 27c, 27d of the threshing machine 2. The rotation of the eccentric drive shaft 38 causes the selection shelf 37 to reciprocate in the front-rear direction (upper side and lower side) via the support metal 44 and the selection arms 46, 46 and the like. The eccentric drive shaft 38 uses the feed chain 7 as a drive source (not shown).

As shown in FIG. 11, threshing receiving support plate 52
Is to bend the left and right sides of the U-shaped front end sideways,
A plurality of bolts 52a and the like are fixed to the bent portion, and support pins 52b,
The support pins 52, 52 support the lower ends 50 of the sorting arms 46, 46, and the bolts 52a are inserted into the front wall 27a of the threshing machine 2 and nuts (not shown). ), Etc., so as to facilitate attachment and detachment.

The sorting shelf 37 includes left and right machine walls 27c,
A rack-shaped transfer shelf 53 for transferring threshed and processed material toward the terminal end (lower side) in the transfer direction in the upper region of the blower 42, and a lower side following the transfer shelf 53 The opening and closing operation of each of the door-like blades 54a determines the amount of leakage of the threshed material and the processed material.
The handling net 34 and the chief sheave 54, which can change and adjust the gap (SA) between the a and 54a, and the contaminants that do not leak from the chief sheave 54 from the rear end of the chief sheave 54 to the lower side. Straw chips and culm discharged from the discharge port 36 of the dust treatment chamber 23 without leaking from the processing nets 35a and 35b, and some grains and twigs mixed in these straw chips and culm cuts. A saw-shaped straw rack 55 for receiving and receiving coarsely separated waste particles is arranged on the upper stage, and a mesh-shaped sieve 56 for medium-separating the coarsely-separated material leaked from the chaff sheave 54 is provided at the lower stage. The arrangement is arranged.

The straw racks 55 are sequentially provided at predetermined intervals in the front and rear direction of the transfer direction at the end of the sorting shelf 37 in the transfer direction. The mechanism for opening and closing the blade 54a of the chaff sheave 54 is provided between the swinging side plates 37a, 37a on both the left and right sides of the sorting shelf 37, while supporting both ends of the upper support shaft 58a of the numerous door-like blades 54a. ,
With the upper support shaft 58a as a fulcrum, each of the blades 54a
A guide groove 59 for rotatably guiding the lower support shaft 58b is provided. The configuration is such that the gap (SA) can be adjusted by rotatably connecting the connecting plates 60 at both ends of the lower support shaft 58b of each of the blades 54a of the chaff sheave 54, so that the amount of grains that leak can be adjusted. It has a configuration that can be used.

One end of the upper and lower support shafts 58a and 58b of the blade 54a at the front end of the chief sheave 54 is fixed to the opening / closing arm 61, and the driving pin 61a at the lower end of the opening / closing arm 61 and the blade 54a are opened and closed. The operation arm 62 a of the actuator 62 (blade motor) is connected by a wire 63. The blade 54
A closing stopper 64a for stopping the opening / closing arm 61 when the shutter a is closed and an opening stopper 64b for stopping the opening / closing arm 61 when the shutter is opened are fixed to the side plate 37a, and a return spring 57 is stretched on the opening / closing arm 61. And

Below the above-mentioned grain sieve 56, the middle sifted material which has leaked from the grain sieve 56 is blown from the blower 42 on a fixed first sorting shelf 69 to wind sort and sort the first grain. In addition to providing a sorting unit, a second sorting unit that roughly sorts the second product by blowing air from the blower 42 on the fixed second sorting shelf 70 on the rough sorted material leaked from the straw rack 55 is provided. In the first and second sorting units, there are formed sorting air passages 41 through which the blowers 42 blow air.

The lower side of the bottom plate of the blower drum 40 is extended linearly to form a lower lip portion 40a of the blower outlet, and the tip of the lower lip portion 40a is sorted down from the first sorting shelf 69. Is connected to the upper side of the first receiving gutter 72 which accommodates the first grain and is fed sideways by the first spiral 71, and the lower side thereof is connected to the lower end of the first sorting shelf 69. Sorting shelf 6
In the lower part near the upper end of the upper part 9, an unthreshed processed material (secondary material) which is sorted down from the second sorting shelf 70 is accommodated, and a second spiral 73 is provided.
Thereby, the upper end of the upper side of the second receiving gutter 74 to be fed laterally is located at an appropriate interval, and the lower side thereof is provided with an appropriate interval at the lower side near the lower end of the second sorting shelf 70, It is configured to be located in a double contact state.

The unthreshed processed material (secondary material) laterally transported by the second spiral 73 is taken over and fed to the upper part of the upper second processing chamber 24 to be supplied. The second reduction cylinder 7 having a pumping spiral 75a having a reduction blade (not shown) at its upper end.
5 is obliquely provided on the right wall 27d of the threshing machine 2 in plan view, and the return port 75b of the second reduction cylinder 75 is fed with the second reduced product pumped to the second processing cylinder 29 of the second processing chamber 24. It is configured to open to return to the rear end position.

On the upper side of the terminal end of the sorting shelf 37, both the sorting wind of the blower 42 and the sorting dust by the swing sorting of the sorting shelf 37 are discharged by a centrifugal fan or the like which discharges the dust outside the machine. The configuration is such that a fan 76 is provided. At the bottom of the grain storage tank 8, a horizontal transfer spiral (not shown) for feeding the sorted and stored grains is provided.
A grain discharging gear case (not shown) for taking over the laterally fed grains and transferring the direction to a vertical transport spiral (not shown) is fixed to one side of the tank 8. An excavating support cylinder 77 containing the vertical transfer spiral is rotatably supported in a vertical position and provided at the upper end of the extruding support cylinder 77 as a fulcrum. A discharge auger 78 internally provided with a discharge spiral (not shown) for discharging kernels is arranged in a lateral direction so as to be able to turn up and down and turn left and right.

As shown in FIG. 12, the front wall 27a of the threshing machine 2
Is divided into upper and lower parts, and a connecting part connecting the upper vertical parting wall 79a and the lower inclined parting wall 79b is provided with a horizontal rail 79c. 79c
A vertical bar 79d is fixedly provided on the outer side of the
9c and the vertical rail 79d, the front lower machine wall 79 divided
The threshing receiving support plate 52 is inserted and mounted in each of the mounting holes 79e provided in the horizontal bar 79c and the vertical bar 79d. Has a configuration in which the lower ends 50 of the sorting arms 46, 46 are mounted.

As a result, the divided front lower machine wall 79 is
The horizontal rail 79c and the vertical rail 79d increase rigidity,
The configuration can sufficiently cope with the vibration of the sorting shelf 37. FIG.
3, and the upper end portion 48 of the sorting arm 46 as shown in FIG.
A stopper 48b is provided at a position on the front side of the portion where the outer peripheral portion of the sorting shelf receiving metal 49 is received, and the sorting arm 46 is formed of a resin material or the like to facilitate attachment and detachment of the sorting shelf 37. The impact of the reciprocating movement of the sorting shelf 37 is reduced, and the weight is reduced.

As shown in FIG. 15, one end of a support pin 49b for supporting the upper ends 48 of the sorting arms 46, 46 on both left and right sides of the sorting shelf receiving metal 49 is protruded.
A U-shaped handle 49c is provided.
The one side of the support arm 47 projects one side of a support shaft 47 for supporting the center in the vertical direction of the sorting arms 46, 46 on the left and right sides of the front receiving part 45 of the support metal 44, and abuts the protrusion. , And is designed to be a detent.

Thus, the support pin 49b can be easily inserted and removed, and the separation shelf 37 can be easily attached and detached, and the support pin 49b can be held at a predetermined position, so that maintenance is improved. Was.

[Brief description of the drawings]

FIG. 1 is an enlarged side view of a main part to be partially sectioned.

FIG. 2 is an enlarged plan view of a main part to be partially sectioned;

FIG. 3 is an enlarged sectional side view of the threshing machine, which can be partially broken.

FIG. 4 is a side view of a chaff sheave portion.

FIG. 5 is an overall side view of the combine.

FIG. 6 is a sectional view taken along line AA of FIG. 3;

FIG. 7 is a sectional view taken along line BB of FIG. 3;

8 is a sectional view taken along the line CC in FIG. 3;

FIG. 9 is a sectional view taken along line DD in FIG. 3;

FIG. 10 is a sectional view taken along line EE of FIG. 3;

FIG. 11 is a view showing another embodiment, and is an enlarged front perspective view of a threshing receiving support plate.

FIG. 12 is a view showing another embodiment, and is an enlarged front perspective view of the wall of the lower front machine.

FIG. 13 is a view showing another embodiment, and is an enlarged side view of a sorting arm part partially sectioned.

FIG. 14 is a view showing another embodiment, and is an enlarged plan view of a sorting arm portion partially sectioned.

FIG. 15 is a view showing another embodiment, and is an enlarged plan view of a sorting arm part partially sectioned.

[Explanation of symbols]

 2 Threshing machine 27a Front wall 37 Sorting shelf 38 Eccentric drive shaft 43 Eccentric part 44 Support metal 45 Front receiving part 46 Sorting arm 47 Supporting shaft 48 Upper end part 49 Sorting shelf receiving metal 50 Lower end part 51 Threshing receiving metal

Claims (1)

[Claims] 1. An eccentric drive shaft 38, which is rotationally driven, and an eccentric portion 43 substantially at the center in the left-right direction of the eccentric drive shaft 38 are supported at the front of a sorting shelf 37 for sorting and receiving grains and straw chips. A supporting metal 44 is provided, and a front receiving portion 45 connected to the supporting metal 44 and a substantially central portion in the vertical direction of a sorting arm 46 provided on both left and right sides are pivotally supported by a supporting shaft 47 so that an upper end thereof is provided. The part 48 is a sorting shelf receiving metal 49 in front of the sorting shelf 37.
The lower end 50 is supported by the threshing receiving metal 51 on the front wall 27a of the threshing machine 2 and the sorting shelf 37 is reciprocated back and forth to sort the kernels and straw waste. Shelves for sorting machines.