JP3204837B2 - Stalk / culm pressing body structure of threshing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for pressing a stem and a stem of a threshing apparatus mainly provided in a combine.

[0002]

2. Description of the Related Art In general,
In the combine equipped with this seed threshing device, not only the automatic threshing operation to automatically supply the stem and culm harvested in the cutting unit to the threshing unit, but also the manual handling of manually cutting the stem and culm manually to the threshing unit. It is necessary to cope with work. Therefore, the stalk squeezing body provided at the feed start position of the feed chain is pressed automatically between the feed chain and the feed stalk sculpture, and the stalk stalk pressing body is separated from the feed chain to allow manual supply of the stalk stalk. It is proposed in Japanese Utility Model Publication No. Sho 55-17795, for example, to freely rotate and change the supply posture. However, this thing, in the stem culm pressing body,
The upper hand side of the stalk pushing rod is pivotally supported so as to be vertically swingable, and the lower feeding side of the pivoted stalk pushing rod is urged toward the feed chain by a single machine. Therefore, when the amount of stem culm supplied from the cutting unit is increased or decreased, there is a possibility that the stem culm cannot be pressed evenly and the stem culm may fall off. Since the supporting position is almost fixed, there is a concern that the stem culm may be clogged and smooth conveyance of the stem culm may be hindered. Therefore, the stalk / pull pressing body is provided with a stalk / pull pressing rod that is slidable in the vertical direction and swingable, and the stalk / pull pressing rod is connected to the feed chain by a pair of rams arranged in the stalk / pull conveying direction. It is proposed to bias towards. In other words, even if the supply stems increase or decrease,
The front and rear sides of the stem culm pushing rod are not allowed to freely move up and down along the stem culm, but the stem culm is pressed evenly by a pair of bullets, so that the stem culm can be prevented from falling off and clogging of the stem culm. However, if the urging force of the pair of ammunition is set to be the same or the urging force of the transport lower side ammunition is set to be strong, the stem and culm supplied to the starting end of the stem and culm pressing rod are Due to the strong urging force of the lower armature for transport, the stagnant stems are stagnated, resulting in pulsating stem culm transport in which the stagnant stems and stems flow by a fixed amount,
As a result, it is not difficult to carry out smooth stem and stem transport,
There was still a risk that stem stalks would become clogged.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and has been made with the object of providing a stem and stem pressing body structure of a threshing apparatus which can eliminate these disadvantages. The feed stalk is provided with a feed chain that is conveyed toward the threshing unit while being sandwiched between the upwardly facing clamping rails, and at the beginning of the feed chain that does not face the clamping rails, An automatic feeding posture in which the feeding stem is pressed and clamped in close proximity to the feed chain,
In a threshing device comprising a stem and stem pressing body that is capable of turning and transforming from the automatic feeding position to a manual feeding position allowing the manual feeding of the stem by erecting and retracting to an upper position on the lower side of the conveyance, the stem and stem pressing is performed. Slide up and down on the body and forward with respect to the transport direction
In addition to providing a stem / culm pushing rod that is allowed to swing in a tilting posture after tilting , the stem / culm pushing rod is urged toward the feed chain by a pair of rams arranged in the stem / culm conveying direction, and further, It is characterized in that the biasing force of the side ammunition is set to be weaker than the biasing force of the transportable side ammunition. In addition, a feed chain that feeds the stem to be supplied to the threshing unit while nipping the stem between the supplied stems and the clamping rail facing upward is provided, and the starting end of the feed chain that does not face the clamping rail is provided at the start end. , An automatic supply posture in which the supply stem is pressed and clamped in close proximity to the feed chain, and a manual supply posture in which the automatic supply posture elevates and retracts to an upper position on the lower side of the conveyance to allow manual supply of the stem. In a threshing apparatus provided with a deformable stem / culm pressing body, a stem / culm pressing rod in which the stem / culm pressing body is allowed to vertically slide and swing forward and backward with respect to a conveying direction. And a single ammunition urges only the upper transport side of the stem / culm pushing rod toward the feed chain, and moves the lower transport side relative to the stem / culm pressing body to freely move up and down.
It is characterized by having such a configuration . Further, at the time of automatic supply of the stem and culm, the lower end of the conveyance of the stem and culm pressing rod is engaged with the start end of the clamping rail, and the conveyance of the stem and culm pressing rod is performed by using the stalk and pressing force of the clamping rail. The lower end is urged toward the feed chain. In addition, the stem and stem pressing rod is configured so as to be freely changeable into a guide posture for inclining and guiding the supply stem and stem during manual supply of the stem and stem, and a rail engaging posture capable of engaging with the pinching rail during automatic stem and stem supply. And a mechanism for returning the stem-pull pressing rod to the rail-engaging position with the rotation of the stem-pull pressing body to the automatic supply position. According to the present invention, the stem can be conveyed extremely smoothly at the starting end of the feed chain, and the clogging of the stem can be reliably prevented.

[0004]

Next, an embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a combine, and a combine 1 is a cutting unit 2 for cutting a stem, a threshing unit 3 for threshing a cut stem and selecting threshed grains, and a threshing process. A post-processing unit 4 for discharging the culm, a crawler-type running unit 5 and the like are provided, all of which have a conventional configuration.

[0005] Reference numeral 6 denotes a feed chain with a claw that is hung in the front-rear direction on the side of the threshing unit 3, and feeds stems supplied from the cutting unit 2 upward. The feed chain 6 is conveyed toward the threshing unit 3 while being sandwiched between the pinching rails 7 arranged side by side. Above the start end of the feed chain 6, there is an open space where the pinching rails 7 are not juxtaposed. As a result, the supply of stems and stems by hand is allowed.

Reference numeral 8 denotes a stem / culm pressing member disposed above the starting end of the feed chain 6. The stem / culm pressing member 8 is opposed to the feed chain 6 and is closely connected to the feed stem from the cutting unit 2. , And a manual supply posture that allows the manual supply of stems and stems by erecting and retracting rearward and upward from the feed chain 6 to allow manual rotation. That is,
A bracket 9a is integrally provided at a starting end of a rail frame 9 supporting the clamping rail 7, and a base plate 11 of a stem / culm pressing body 8 is vertically rotated on a support shaft 10 which is supported by the bracket 9a. Although it is freely connected, the fulcrum crossing fulcrum 1 is further provided between the bracket 9a and the stem culm pressing body 8.
2 are provided so that the stem and stem pressing body 8 is held in the above-mentioned two positions in a resilient manner. In addition, 13 is a lower limit stopper screw which locks the stem and culm pressing body 8 at the lower limit position and can finely adjust the lower limit position, and 11a is an upper limit stopper piece which locks the stem and culm pressing body 8 at the upper limit position.

Reference numeral 14 denotes a pressing body frame having a substantially U-shaped cross section which protrudes forward from the base plate 11, and a rear sliding shaft 15 is slidable up and down at the base end side of the pressing body frame 14. Hole 14 for supporting through
On the other hand, in the upper and lower positions on the distal end side of the pressing body frame 14, a long hole 14 b for supporting the front slide shaft 16 slidably up and down and allowing the front slide shaft 16 to swing back and forth. Is pressed, but the pressing body frame 1
At the lower ends of both slide shafts 15 and 16 projecting downward from 4, stem pushing rods 18 are pivotally supported via pivot pins 17, respectively. That is, the stem and stem pressing rod 18 pivotally supported by the front and rear slide shafts 15 and 16 is opposed to the starting end of the feed chain 6 in a close proximity.
While sliding up and down based on the slide of the same 16 in the same direction, it can swing and change to the forward tilt or the backward tilt posture based on the reciprocal slide of the front and rear slide shafts 15 and 16 or one of the slides. It has become.

Reference numerals 19 and 20 denote the slide shafts 15 and 16, respectively.
And a pair of front and rear ammunition mounted on the base end portion of the pressurizing machine 19, and the front ammunition 19 mounted on the front slide shaft 16 of the pressing ammunition 19, 20 has the front slide shaft 16 directed downward. The front side of the stem and stem pressing rod 18 is urged toward the feed chain 6 because of the compression coil spring that is urged.
Numeral 0 is constituted by a torsion coil spring shorter than the front-side ammunition 19, so that the rear-side slide shaft 15 is urged with an extremely weak force as compared with the front-side ammunition 19. That is, the stem and stem pressing rod 1 in which vertical sliding and swinging are allowed.
8 is urged by a pair of rams 19 and 20 arranged in the stem and stem transport direction, so that the stem and stem supplied from the cutting unit 2 can be pressed regardless of the supply amount, and Since the biasing force of the side ammunition 20 is set to be weaker than the biasing force of the front side ammunition 19, the stem culm supplied to the starting end of the stem culm pressing rod 18 is
Although it is possible to avoid extremely stagnation due to the urging force of the rear side ammunition 20, it is possible to perform very smooth stem and stem transfer,
Further, in this embodiment, the rear end of the stem / culm pushing rod 18 is inserted below the start end of the pinching rail 7, and the stem / pull pushing rod 18 is pushed back using the stem / culm pushing force of the pinching rail 7. Since the end is configured to be biased toward the feed chain 6,
Even if the urging force of the post-temporary ammunition 20 is significantly reduced, sufficient stem culm pressing force can be ensured, and the transfer of stem culm from the stem culm pushing rod 18 to the clamping rail 7 can be performed extremely smoothly. I can do it.

Incidentally, one end of the rear-side ammunition 20
The pipe member 21 is engaged with the inner surface of the pressing body frame 14 and the other end thereof is loosely fitted to the fulcrum ram 12.
For this reason, the stalk presser 8 moves up and down in conjunction with a relative position change of the fulcrum-crossing ram 12 due to the vertical rotation of the stalk presser 8. When the rear ram 20 moves upward in conjunction with the turning operation of the stem and stem pressing body 8 to the manual supply posture side, the upper engagement wheel 15a of the rear slide shaft 15 is moved in the process of moving upward. In the case where the rear armature 20 moves down in conjunction with the rotation of the stem / culm pressing body 8 to the automatic supply posture side while the rear slide shaft 15 is engaged and pushes up the rear slide shaft 15, the rearward movement is performed in the process of moving down. The rear slide shaft 15 is pushed down by engaging with the lower engagement wheel 15b of the side slide shaft 15. That is, in a state where the stem and stem pressing body 8 is rotated to the manual supply posture, the stem and stem pressing rod 18 is forcibly transformed into the inclined guide posture (the inclined posture in which the lower side is receded), and the hand during the manual handling operation is performed. While functioning as a stalk supply guide, when the stalk press body 8 is rotated to the automatic supply position, the stalk press rod 18 is forcibly returned to the parallel position and the lower side of the clamping rail 7. It is constituted so that it may enter into certainly.

On the other hand, the clamping rail 7 is formed by connecting a plurality of rail pieces 7a in a series, and is supported by the rail frame 9 via a slide shaft 23 urged by a pressing elastic machine 22. Therefore, each rail piece 7a presses and clamps the supply stem in a state where vertical sliding and swinging are allowed, but the rail piece 7a at the transport start end has a hook-shaped engaging rod. 24 are integrally provided to project forward. Then, when the stem / culm pressing body 8 is rotated to the manual supply posture, the engaging rod 24 reaches the vicinity of the position beyond the fulcrum when the stem / culm pressing body 8 reaches a position near the fulcrum.
1 is engaged with the engaging pin 25 protrudingly provided on the rail piece 7, and thereafter, following the stem / culm pressing body 8, the rail piece 7 a at the transport start end portion
Is configured to be separated from the feed chain 6.

In the middle portion of the engaging rod 24, there is formed an inclined side 24a having a front height and a rear low shape.
The lower side of 4a is continuous with the inclined guide surface 7b formed at the front end of the rail piece 7a, while the upper side of the inclined side 24a is continuous with the stem / culm pressing rod 18 in the inclined guide posture. It is possible to introduce the stems and stems very easily at the time, and it is possible to eliminate the inconvenience that the stems and stems enter between the pinching rail 7 and the stem and stem pressing body 8 and the back side of the stem and stem pressing rod 18. It has become.

During the manual handling operation, the supplied stems are sequentially conveyed rearward. However, when the supplied stems reach the vicinity of the position of the second pressing mechanism 22B of the clamping rail 7, In some cases, the starting end rail piece 7a rotates in a so-called seesaw shape around the position of the first pressing machine 22A that has reached the compression limit. In this case, there is a possibility that the turning force of the starting end rail piece 7a acts on the engaging pin 25 via the engaging rod 24 to rotate the stem / culm pressing body 8 to the automatic supply posture. However, in this embodiment, the first pressing machine 2
Since the contact height of 2A (the height at the time of maximum compression) is set shorter than the contact height of the other pressing ram 22, even when a large amount of stems and stems are supplied, the first pressing is performed. Ammunition 2
The rotation of the starting end rail piece 7a about 2A as a fulcrum is avoided, and as a result, the inconvenience of the stem and stem pressing body 8 descending to the automatic supply posture can be eliminated.

In the embodiment of the present invention configured as described above, the stalk / culm pressing body 8 is slid up and down in the conveying direction.
A stalk-pulling rod 18 that is allowed to swing forward and backward with respect to the stalk-pulling rod, and the stem-pull pressing rod 18 is moved to a pair of front and rear
At 9 and 20, the urging force is applied toward the feed chain 6; however, since the urging force of the rear armature 20 is set to be weaker than the urging force of the front armature 19, the supplied stem and stem are supplied with the rear armature 20. Without pushing up the rear side of the stem / culm pressing rod 18 to smoothly flow. Therefore, as in the case where the urging force of the pair of armatures 19 and 20 is set to be the same, or the urging force of the rear armature 20 is set to be strong,
Pulsating stem culm transport in which the stagnant stem culm flows by a fixed amount can be reliably prevented, and as a result, extremely smooth stem culm transport can be performed, and clogging of the stem culm is surely prevented. be able to.

Further, the rear end of the stem-and-culm pushing rod 18 enters below the starting end of the clamping rail 7 and
To press the stems and stems, the necessary biasing force can be obtained even if the biasing force of the rear side ammunition 20 is significantly reduced, and the stem and stem pushing rod 18 and the clamping rail 7 are continuously connected. To do
The transfer of stems and stems can be performed extremely smoothly.

Further, the stem / culm pressing rod 18 is
Is automatically changed to the inclined guide position in accordance with the turning operation to the manual supply position, so that the supply of the stem and culm during the handling operation can be performed very easily.
The inconvenience that stems and stems enter into the back side of No. 8 can surely be solved.

Further, the stem / culm pushing rod 18 which has been transformed into the inclined guide posture as described above automatically returns to the parallel posture with the turning operation of the stem / culm pushing body 8 to the automatic supply posture. The rear end of the stem and stem pressing rod 18 will surely enter below the starting end of the clamping rail 7, thus eliminating the trouble of repeatedly raising and lowering the stem and stem pressing body 8 until the stem and stem pushing rod 18 are properly inserted into the lower side. It is also possible to improve the operability, and it is also possible to solve the inconvenience of starting the work with the stem and stem pressing rod 18 riding on the upper side of the clamping rail 7 and reducing the threshing accuracy. .

Further, since the contact height of the first pressing mechanism 22A for urging the clamping rail 7 is set shorter than the contact height of the other pressing mechanisms 22, a large amount of stems and stems are supplied. Even in this case, the rotation of the starting end rail piece 7a with the first pressing bullet 22A as a fulcrum is prevented, and as a result, the stem culm pressing body 8 is automatically set to the automatic supply posture by the turning power of the starting end rail piece 7a. The inconvenience of descending can be surely eliminated.

The present invention is, of course, not limited to the above-described embodiment. For example, a pipe-shaped weight is slidably mounted instead of the rear-side ammunition 20. Can also provide substantially the same effects as in the above embodiment. That is, since the weight body moves by its own weight with the vertical rotation of the stem / culm pressing body 8, the rear slide shaft 15
Can be forcibly transformed into the inclined guide posture and the parallel posture (rail engaging posture). The rear end of the stem-pull pressing rod 18 receives the urging force of the engaging rail 7 and presses the stem-pull. Therefore, there is no problem even if the rear-side ammunition 20 is eliminated.

[0019]

[Effect] In summary, since the present invention is constructed as described above, the stalk / pull presser which can be transformed into an automatic supply posture and a manual supply posture is provided with a vertical sliding and conveying method.
And a stalk culling rod that is allowed to swing forward and backward with respect to the direction, and urges the stalk culling rod toward the feed chain with a pair of rams arranged in the stalk culm transport direction. Did
Even if the supply stem culm increases or decreases, the front and rear of the stem culm pushing rod freely moves up and down and along the stem culm, and the stem culm is pressed substantially evenly by a pair of rams, but the lower limb is conveyed. Is set to be weaker than the urging force of the upper transport side ammunition, so that the inconvenience of the pedicle stem being transported in a pulsating manner can be surely eliminated. That is, as in the case where the urging force of the pair of armatures is set to be the same or the urging force of the lower armature for conveyance is set to be strong, the stem / culm supplied to the starting end of the stem / culm pressing rod is unsuccessfully conveyed. The pulsating stem / culm where the stagnated stem / culm flows by a fixed amount at a time by easily pushing up the lower side of the conveyance of the stem / culm pushing rod without stagnation due to the biasing force of the side ammunition, and thus the stagnated stem / culm flows by a fixed amount. It is possible to prevent the transportation of the stem and culm so that the transportation can be extremely smoothly performed, or the clogging of the stem can be reliably prevented.

Further, only the upper transport side of the stem / culm pressing rod is urged by a single ram, and the lower transport side is pushed against the stem / culm pressing body.
Even if it is configured to move up and down for any reason, it is possible to prevent the pulsating stem and stem transport described above, but in this case,
Because the lower side of the stalk culm pushing rod is freely moved up and down with respect to the stalk culm pushing body, when the stalk culm pushing body is transformed into the manual supply posture, the stalk culm pushing rod is transformed into the inclined posture by its own weight. It is possible to function as a supply guide for stem culm, so that it is not allowed to facilitate the supply of stem culm during manual handling work, and the inconvenience of stem culm entering the back side of the stem culm pushing rod is also solved can do.

The lower end of the stalk pressing rod is engaged with the start end of the clamping rail, and the lower end of the stalk pressing rod is conveyed by using the pressing force of the stalk. If the part is urged, is it possible that the transfer from the stem and stem pressing rod to the clamping rail will be performed extremely smoothly,
Since a sufficient urging force can be obtained even if the lower-side transport machine is not provided, it is possible to contribute to reduction of the number of parts and simplification of the structure.

In the case where a mechanism is provided for returning the stalk pressing rod to the rail-engaging position in conjunction with the rotation of the stalk pressing body to the automatic supply position, the lower end of the conveying of the stalk pressing rod is provided. Can be reliably engaged with the start end of the pinching rail, so it is possible to improve the operability by eliminating the trouble of raising and lowering the stem and stem pressing body many times until it is successfully engaged, or in the non-engaged state The inconvenience of starting the work as it is and lowering the threshing accuracy can also be solved.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a combine.

FIG. 2 is a plan view of a main part of the above.

FIG. 3 is a side view of a main part of the same.

FIG. 4 is a plan view showing a stem / culm pressing body in an automatic supply posture.

FIG. 5 is a side view of the same.

FIG. 6 is a side view showing a stem and stem pressing body in a manual supply posture.

FIG. 7 is a side view showing the operation of the clamping rail.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Combine 3 Threshing part 6 Feed chain 7 Clamping rail 8 Stem culm pushing body 12 Supporting point ram 15 Rear slide shaft 16 Front slide shaft 18 Stem culm pressing rod 19 Front ram 20 Rear ram

Continuation of the front page (56) References Japanese Utility Model Sho-63-103240 (JP, U) Japanese Utility Model Sho 54-125364 (JP, U) Japanese Utility Model Utility Model 2-90943 (JP, U) (58) Fields surveyed (Int) .Cl. ⁷ , DB name) A01F 12/10

Claims (4)

(57) [Claims] 1. A feed chain which feeds a stem to be supplied to a threshing unit while nipping a stem to be supplied between the rails and a clamping rail facing upward, and a starting end of the feed chain which does not face the clamping rail. In the part, an automatic supply posture that presses and clamps the supply stems in close proximity to the feed chain, and a manual supply posture that allows the manual supply of the stems by erecting and retracting from the automatic supply posture to the upper position on the transport lower side. In a threshing apparatus comprising a stem and stem pressing body capable of rotating and deforming, the stem and stem pressing body is provided with a vertical slide and a forward tilt with respect to a conveying direction.
In addition to providing a stem-culling pressing rod that is allowed to swing backward and tilt, the stem-culling pressing rod is urged toward the feed chain by a pair of rams arranged in the stem-culm conveying direction, and further on the lower side of the conveying. A stalk-and-stem pressing body structure for a threshing device, wherein the urging force of the ammunition is set to be weaker than the urging force of the upper-hand-side ammunition. 2. A feed chain which feeds a stem to be supplied to a threshing unit while nipping a stem to be supplied between the upper and lower striding rails, and a starting end of the feed chain which does not oppose the strangling rail. In the part, an automatic supply posture that presses and clamps the supply stems in close proximity to the feed chain, and a manual supply posture that allows the manual supply of the stems to erect and retract from the automatic supply posture to the upper position on the lower side of the conveyance. In a threshing apparatus comprising a stem and stem pressing body capable of rotating and deforming, the stem and stem pressing body is provided with a vertical slide and a forward tilt with respect to a conveying direction.
In addition to providing a stem / culm pushing rod that is allowed to swing in the backward tilted posture, only the upper hand side of the pushing of the stem / culm pushing rod is urged toward the feed chain by a single ammunition , and the lower stem side of the carrying is stemmed. For culm pressing body
A stem and stalk pressing body structure of a threshing apparatus characterized by being configured to freely move up and down . 3. The stalk and culm of the clamping rail according to claim 1 or 2, wherein, at the time of automatic supply of the stalk and culm, the lower end of the conveyance of the stalk pressing rod is engaged with the starting end of the clamping rail. A stem and stem pressing body structure of a threshing machine, wherein a pressing lower end of a stem and stem pressing rod is biased toward a feed chain toward a feed chain. 4. The posture of claim 3, wherein the stalk squeezing rod is tilted to guide the stalk culm during manual stalk culm supply, and
It can be configured to freely change to a rail engagement position that can engage with the pinching rail during automatic supply of stems and stems, and the stem and stem pressing rods are rail-engaged with the rotation of the stem and stem pressing body to the automatic supply position. A structure for pressing a stem / culm of a threshing device, which is connected to a mechanism for returning to a posture.