JPS5938111Y2 - Combine culm conveying device - Google Patents

Description

[Detailed description of the invention] The present invention includes, for example, a relatively long husk conveying chain that includes a reaping section and a threshing section, and supplies the husk culm cut by a cutting blade to a feed chain. The present invention relates to a culm conveying device for a combine harvester in which a sandwich plate member is constructed so as to be able to approach and separate, and a culm is pinched and conveyed by the chain and the sandwich plate member.

Conventionally, there has been a technique in which a plurality of elastic clamping rods are provided in series on a clamping frame that is supported by pressure (for example, Japanese Utility Model Publication No. 15033/1983). If the clamping force of the culm is increased by increasing the crimping force of the culm or by making the culm engaging piece of the culm conveying chain longer, the clamping force of the conveying culm becomes stronger than necessary, and the clamping part It is difficult to bend the shell culm into a dogleg shape and support the shell culm in a direction perpendicular to the culm conveying chain, which has the drawback of causing desugarization and culm breakage.

The present invention solves the above-mentioned conventional drawbacks, and includes a device in which a culm conveying chain that clamps and conveys shell culms is elastically supported with a clamping bar via a spring so as to be movable back and forth. A pair of clamping plates are provided approximately parallel to the culm conveying chain, and each clamping plate is supported by a spring on both sides of the culm conveying chain so as to protrude and move forward and backward. A culm conveying chain and a clamping part are inserted between each clamping plate with a weak force, and the culm is inserted from the same direction as the clamping bar to the shell culm on both sides of the clamping part by the said culm conveying chain and clamping bar. The clamping plates may be brought into pressure contact with each other, and each part of the tip and culm base of the culm, which is bent into a dogleg shape by the clamping of the chain and the clamping rod, can be bent in the opposite direction by the clamping plates, and the chain An object of the present invention is to provide a culm conveying device for a combine harvester that can constantly clamp and support the culm in a direction orthogonal to the culm, prevent desugarization, culm breakage, etc., and transport the culm more reliably than before. It is something to do.

An embodiment of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a schematic side view of the combine harvester, and FIG. 2 is an open plan view of the combine harvester. 4 is a threshing unit with a feed chain 5 installed on the left side and a built-in handling cylinder 6;
Reference numeral 7 denotes a reaping section which is provided in front of the threshing section 4 and is rotated up and down by a hydraulic cylinder 9 around a rotational fulcrum shaft 8 at the front end thereof, and 10 is a cylinder type straw which is fixedly installed on the rear surface of the threshing section 4. A cutter 11 is a straw collecting table arranged on the right side of the cutter 10, and a straw collecting table 12 is a straw collecting table arranged on the right side of the cutter 10. 13 is a paddy pedestal installed on the right rear side of the shelling section 4 to face the hoisting cylinder 14; 15 is an engine part mounted on the machine base 1 in front of the paddy pedestal 13; 16 1 is a driver's seat provided on the upper surface of the engine section 15, 17 is a driver's cab, and 18 is a driving operation section to which a side clutch lever ICl3 and the like are attached.

The reaping section 7 has a reaping frame 2 whose base end is attached to the rotational fulcrum shaft 8 and a hydraulic cylinder 9 for lifting and lowering is connected to the intermediate part.
0, grass dividing board 21..., and culm lifting tine 22.2
2, the left and right raking drums 23° 23, the lower conveyance chain 24 arranged in parallel below the left raking drum 23, and the cutting blade 25.
, left and right culm guides 26, 27, and vertical conveyance chain 28
The tips of the uncut culms that are inserted between the weed dividing plates 21 are pulled up to the tines 22, and the culm bases are held between the drums 23 and 23 and the chain 24, and the culm bases are The cut husk is cut by the cutting blade 25, and the cut husk is formed so as to be held and conveyed by the vertical conveyance chain 25.

As shown in FIGS. 3 to 5, the upper end side of the vertical conveyance chain 28 is supported by a gear box 29 attached to the rotation fulcrum shaft 8, and a length adjustment lever 30 is connected to the lower end of the chain 28. , the lever 30 is engaged with the long/short culm adjustment plate 32 fixed to the back surface of the right pulling case 31, the chain 28 is installed between the rear part of the raking drum 23, 23 and the starting end of the feed chain 5, and the threshing section In order to move and insert the tip portion into the handling port 33 of No. 4, the conveyor chain 28
is formed so that the shell culm is transferred to the starting end of the feed chain 5.

A main gripping bar 34 and an auxiliary gripping plate 35, which are gripping members, are installed along the conveyance chain 28 so as to be able to freely approach and separate, and are attached to the chain guide 36 of the conveyance chain 28 via a U-shaped support rod 3T. The n-type main holder 38 is fixedly supported.

A pair of support rods 40, 40 are slidably inserted into the through holes 39, 39, .
40, a U-shaped sub-holder 42 is fixed to the tip of each support rod 40, 40, and the main gripping bar 34 is fixed to the sub-holder 42 via a continuous culm 43, and the conveyor chain 2
The main gripping rod 34 is inserted and supported between the 8 spaces.

Pins 45° 45 are erected on the upper and lower sides of the sub holder 42, and elongated holes 46 are formed in the auxiliary gripping plate 35, and the pins 44° 45 are inserted into the elongated holes 46. There are two pairs of auxiliary grip plates 35 on the upper and lower sides of the sub holder 42,
35, and springs 47 and 47, which have a smaller spring force than the leaf spring 41, are connected to the pins 44, 44 and each gripping plate 35,
35, and each gripping plate 35.degree. 35 is supported in a protruding manner on the upper and lower sides of the conveyor chain 28.

The present invention is constructed as described above, and the grass dividing plate 21...
・Pull up the tip of the uncut culm that gets in between the main 22.
At 22, the culm base of the housing is held by the scraping drums 23, 23 and the lower conveyance chain 24, respectively, and the culm base is transferred to the cutting blade 2.
Cut by 5.

The cut culm is then conveyed to the starting end of the Tefeet chain 5 by the vertical conveyance chain 28.

At this time, the shell culm is guided by the shell culm guides 26 and 27 and the like to shift the shell culm from an upright position to a horizontal position, and is transferred to the feed chain 5, and the shell culm is introduced into the threshing section 4 through the handling port 33. It is used for threshing and appropriately discharging straw, and when the vertical conveyance chain 28 takes over the shell culm sent from the lower conveyance chain 24 at the start of reaping work, the flow rate of the shell culm is small and the feeding resistance of the shell culm is low. Since the culm is small, the auxiliary clamping plate 35 first moves backward against the spring 47 having a weak spring force, and the chain 28 and the clamping plate 35 clamp and convey the culm that is about to be cut.

Furthermore, when the flow rate of the shell culm sent from the lower conveyance chain 24 increases and the feeding resistance of the shell culm increases, the main gripping rod 34 moves back against the leaf spring 41 having a strong spring force, and an appropriate amount of shell culm is removed. The culm is conveyed by the chain 28 and the main gripping plate 34, and in a different route, the main gripping rod 34 approaches the conveyance chain 28 first, and then the auxiliary gripping plate 35 returns. move.

In this way, the gripping force is varied in multiple stages according to the amount of shell culms transferred by the chain 28, thereby smoothly transferring the shell culms at the starting and ending ends of the chain 28.

In addition, similarly to the vertical conveyance chain 28, the main gripping rod 34 and the auxiliary gripping plate 35 can be easily installed on a long chain such as the feed chain 5 or the straw removal chain 12. Leaf spring 41 energizing 40
It is also possible to easily change the gripping force in multiple stages according to the movement of the main lever rod 34 by providing a plurality of them.

As shown in the embodiments described above, the present invention provides a device in which a clamping bar 34 is elastically supported by a spring 41 on a culm conveying chain 28 that clamps and conveys a culm, so that the clamping bar 34 can move forward and backward. A pair of gripping plates 35.35 are provided approximately parallel to the
The gripping plates 35, 35 are supported by springs 47.47 on both sides of the culm conveying chain 28 so as to be movable forward and backward. The culm conveying chain 28 and the clamping part 34 are inserted between the clamping plates 35 and 35 whose force is weakened. Each of the clamping plates 35 and 35 can be brought into pressure contact with the clamping rod 34 from the same direction, and each part of the tip and base of the culm, which is bent into a dogleg shape by the clamping of the chain 28 and the clamping rod 34, can be pressed. It can be bent in the opposite direction by each gripping plate 35, 35, and the culm can be constantly supported in the direction perpendicular to the chain 28, preventing desugarization and culm breakage, etc. than before. This method has remarkable effects such as being able to transport the culm more reliably and being extremely practical.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and Fig. 1 is a schematic side view of the combine harvester, Fig. 2 is a plan view thereof, Fig. 3 is a front view of the main parts, and Fig. 4 is a plan view thereof. , FIG. 5 is a partially enlarged sectional view. 28... Vertical conveyance chain (culm conveyance chain),
34...Main clamping rod (gripping member''), 35...Supporting clamping plate (gripping member'').

Claims (1)

[Scope of utility model registration request] In a device in which a gripping bar 34 is elastically supported by a spring 41 on a culm conveying chain 28 that clamps and conveys the culm, a pair of gripping plates 35 are provided on both sides of the gripping rod 34 substantially parallel to the gripping rod 34. .
The culm conveying chain 2 is installed between each of the clamping plates 35 and 35, which has a lower protrusion force due to the spring 47.47 than the protrusion force of the spring 47.
8 and a clamping portion 34 are inserted therein.