JP2000209937A - Feeding guide apparatus of combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a feeding guide apparatus of a combine harvester having a feeding guide placed in front of a feed chain and retractable in a manner not to protrude into a threshing feeding port in the case of manual threshing work. SOLUTION: A feeding guide C attached to a relaying part in front of a feed chain 1 from a reaping transfer end is attached in front of a sliding pipe 2 longitudinally sliding in an outer cylinder 9 placed parallel to the transfer direction. The feeding guide is switchable between a reaping work position A and a housed position B for manual threshing work. The switched position is maintained by planting a catch spring 7 for keeping both set positions and front and rear fixing rods 8a, 8b at the fixing side and the sliding side and alternately fitting the spring to the rods. In the case of changing to the housed position B, a clamping rod 3 is manually pushed to a position until the rod is brought into contact with a straw pressing plate 5 and retracted into the feeding port.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a feed guide device for a grain culm provided in front of a feed chain, which is inherited from a harvesting unit of a combine to a threshing unit.

[0002]

2. Description of the Related Art In a conventional combine, the weight of a mowing part becomes larger than that of a crawler traveling device, so that the position of the center of gravity is shifted forward, and a threshing part is arranged rearward to adjust the machine body balance. In addition, there is a space between the end of the mowing conveyance and the threshing unit, which is not conveyed, and a supply guide device for holding and conveying the culm is provided in front of the feed chain. However, it is necessary to secure a space for the threshing supply port in order to cope with the manual handling work of manually cutting the grain culm, and the one that is inverted and stored upward by using the tension spring force, Although this is disclosed in Japanese Patent Application Laid-Open No. 7-255254, the space is narrowed due to the storage method that is provided upright at the tip of the feed chain cover, and grain stems are difficult to be loaded and stem stems are caught. In addition, since the storage form is held by the tension spring force, there is a problem that the operation force for reversing and storing increases when trying to increase the grain stalk holding force during the mowing operation.

[0003]

SUMMARY OF THE INVENTION A supply guide provided in front of a feed chain is retracted and stored so as to be superimposed on a straw push plate during a manual operation, and a supply guide for a combine that does not form a protrusion at a threshing supply port. The purpose is to provide the device.

[0004]

Therefore, in a combine equipped with a supply guide for transporting grain culm from the transport end of the cutting section to the feed chain receiving section of the threshing section, the combine slides in the transport direction of the feed chain (1). Supply Guide (C)
Was slid to a mowing work position (A) and a storage position (B) for manual handling work, and a means for switching was adopted.

A holding rod (3) of the supply guide (C) is provided in parallel with a straw push plate (5) opposed to the feed chain (1), and a holding rod biting portion (6a) at a supply start end. Was retracted to the vicinity of the straw push plate biting portion (6b) and stored at a position where it overlaps with the straw push plate (5).

The supply guide (C) is moved to the cutting operation position (A).
A means is provided for mounting and retaining a detachable locking tool at a set position for switching between two directions, that is, a storage position (B) during manual operation.

[0007]

DETAILED DESCRIPTION OF THE INVENTION

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a supply guide device according to the present invention will be described with reference to an embodiment. FIGS. 1 and 2 show a front view of a main portion of a supply guide inherited from a cutting and conveying end to a threshing feed chain, and an entire combine. And a threshing unit (F) in which a feed chain (1) to be conveyed backward is mounted on a chassis frame (10) having a crawler traveling device, and a cutting unit (E) is provided on a front surface. Mounted rotatably, cut the planted stalks while adjusting the cutting height,
The end of the reaper transport chain (11) that lifts and transports backwards,
The feed chain (1) faces the tip of the feed chain (1), and a feed guide (C) is provided above the feed chain (1) so that the feed chain can be inherited.
The inside of the outer cylinder (9) erected from the machine side in parallel with the conveyance direction
In front of the sliding pipe (2) that slides back and forth, a supply guide (C) is integrally provided and provided so that the holding rod (3) for transporting the grain can be bent with the support rod (13). While being stopped, it is inserted through a pipe (15) welded to a guide table (12) via a spring (4), and is held up and down freely.

[0008] In order to slide to the storage position (B) for manual handling, a middle part of the outer cylinder (9) using a square bar is cut off by a slide width (D), and a sliding pipe having the same cross section is formed. The guide base (12) extends below the front end of the feed chain (2) so as to be integrated with the supply guide (C), and is installed in front of the feed chain (1). It is. On the other hand, a catch spring (7) is screwed above the front end, and a fixed rod (8) erected on the front side of the outer cylinder (9).
The mowing work position (A) is held by fitting into (a). To switch to the storage position (B) for the manual operation, the fitting portion is manually removed, and the sliding pipe (2) is connected to the fixing rod (8b) until the other of the catch springs (7) is similarly fitted. As shown by a chain line in the push-in and chain cover (14), the holding rod biting portion (6a) at the supply start end is retracted to the vicinity of the straw push plate biting portion (6b), and the straw push plate ( Since it was stored so as to be superimposed on 5), a protrusion that would be an obstacle was removed from the supply space at the time of manual operation, and the supply of cereal stalks became easy.

FIG. 3 is a sectional view of a main part of the supply guide (C). The compression guide (2) faces the feed chain (1).
The straw pusher (1) on which the straw pusher (5) held in (0) is connected continuously
5), an outer cylinder (9) is installed in parallel, and the front and rear fixing bars (8a) and (8b) are planted above the center of the rectangular cross section, and screwed into the sliding pipe (2). The receiving groove portion of the catch spring (7) is arranged to be detached. The operation configuration of the holding bar (3) is as follows: a supporting shaft (13) inserted through a pipe (15) welded to a guide table (12); By attaching and regulating the position with a split pin (22) through a spring (4), the stalk with a narrow holding pressure is set to the straw push plate (5) in the feed chain (1). It is attached in parallel so that the holding bar (3) moves up and down in accordance with the amount of conveyance.

FIG. 4 is a plan view showing a transfer section from the cutting and conveying end to the feed chain. The supply guide (C) is slid from the cutting work position (A) in the direction of the arrow (A).
The position is switched to the storage position (B) for the manual operation. Such a catch spring (7) that secures the position of the sliding pipe (2) that moves back and forth is formed by opening the receiving groove part back and forth and alternately fitting with the fixing rod front and rear (8a) and (8b). ,
The switching position is detachable. In addition, (19) is a culm push rod extending from the end of the mowing transport to the tip of the feed chain (1), and the mowing transport chain (11) corresponds to the length of the grain culm in the direction of the arrow (b). It is a guide rod that can be reliably inherited even if it is adjusted.

As described above, the sliding pipe in which the square members are loosely fitted with the double structure has the inclination caused by the fluctuation of the supply amount,
Since it exerts a strong holding force that does not cause twisting, the spring pressure of the holding bar according to the transport amount can be increased. Also, the attachment and detachment of the catch spring that holds the switching position can be performed by a simple operation of manually pushing and pulling, resulting in a simplified configuration. In addition, in the storage position for manual operation, the pressing force of both the straw push plate and the holding bar acts, and the holding structure can prevent the culm from being pulled out or spilled during manual operation, where the supply amount tends to fluctuate. Was.

FIG. 5 is an enlarged plan view of the holding structure of the sliding pipe (2), in which the cut-out portion (18) of the outer cylinder (9) has a U-shaped cross section, and a catch spring ( A sliding pipe (2) screwed with 7) slides between them, and receiving grooves opened before and after the catch spring (7) are fitted on the front of the fixing rod (8a) to supply guide. (C)
Is set at the mowing operation position (A), so that the outer cylinder (9) is held by the front and rear rectangular cross-section portions. Also, when the storage position (B) for the manual operation activated in the direction of the arrow (B) described above is set, the sliding pipe (2) comes out of the front rectangular cross section and moves rearward, and is supported on one side. It is. Reference numeral (21) denotes a connecting plate for erection of the straw pusher (17) from the machine side.

FIG. 6 shows an embodiment showing a separate support structure for the sliding pipe (2), in which a plurality of support rings (23) are protruded from the straw pusher (17) and the front and rear of the fixed rod (8a). ),
(8b) is erected so that the sliding pipe (2) slides on the inner diameter, and the receiving groove of the catch spring (7) moves by (a) the sliding width (D) in the direction of the arrow. This is an embodiment in which the supply guide (C) is stored and held by fitting.

[0014]

The present invention is embodied in the form described above, and has the following effects.

Since the supply guide is attached to the feed chain and retracted and stored at a position where the supply guide overlaps with the straw push plate, there is no obstacle in the supply port space of the threshing unit, so that the handling operation can be performed easily. became. In addition, since the straw push plate and the holding rod are superposed in the feed chain at the storage position, both pressing forces act on the grain culm, and it is possible to cope with transport disturbances in manual handling work where the supply amount is liable to fluctuate. The structure of the supply guide to prevent pulling out and spilling of the culm was achieved.

Since the operation of switching to the storage position for manual operation releases the holding force of the spring by manual pushing and pulling, the operation is easy with a simple configuration. In addition, a sliding pipe that slides by loosely fitting a square bar into a double structure exhibits a strong holding force that does not cause tilting or twisting that fluctuates according to the supply amount, and the spring of the holding rod according to the transport amount The pressure can be increased to prevent the culm from being pulled out, and the inheritance performance is further improved.

[Brief description of the drawings]

FIG. 1 is a front view of a main part of a supply guide provided in a transfer section.

FIG. 2 is an overall front view of a combine equipped with a supply guide.

FIG. 3 is a sectional view of a main part of a supply guide.

FIG. 4 is a plan view showing a receiving portion of the feed chain.

FIG. 5 is an enlarged plan view of a holding structure for a sliding pipe.

FIG. 6 is a perspective view of another embodiment supporting a sliding pipe.

[Explanation of symbols]

A. . Cutting work position B. . Storage position
C. . Supply Guide D. . Slide width E. . Reaper
F. . Threshing section . Feed chain 2. . Sliding pipe
3. . Support rod 4. . Spring 5. . Straw push plate 6
a. . Nipping rod biting portion 6b. . 6. Straw push plate biting part . Catch panel
8a. . Before fixed bar 8b. . After fixed rod 9. . Outer cylinder
10. Chassis frame . Reaper transport chain 12. . Guide stand
13. . Support rod 14. . Chain cover 15. . pipe
16. . Crimping tack 17. . Straw push pad 18. . Resection
19. . Stalk base support 20. . Compression spring 21. . Connecting plate
22. . Split pin 23. . Support ring b. . Storage direction of supply guide b. . Transfer chain moving direction for long and short culm adjustment

Claims (3)

[Claims] In a combine equipped with a supply guide for holding and transporting a grain culm from a transport end of a cutting section to a feed chain receiving section of a threshing section, a supply guide (C) sliding in the transport direction of the feed chain (1). ) Is the mowing work position (A)
Characterized in that it is slid to the storage position (B) for manual handling and switched. 2. A holding rod (3) of a supply guide (C) is provided in parallel with a straw push plate (5) opposed to a feed chain (1), and a holding rod biting portion (1) at a supply start end. 2. The combine feed guide device according to claim 1, wherein 6a) is retracted in the vicinity of the straw push plate biting portion (6 b) and stored so as to be superposed on the straw push plate (5). 3. A setting position for switching the supply guide (C) in two directions, a reaping operation position (A) and a storing position (B) for a manual operation, by attaching and detaching a retaining tool. The supply guide device for a combine according to claim 1, wherein