JP2522900C - - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a feed chain which is biased and contacted in a state of interfering with the feed chain when the feed chain of the combine is opened and rotated. The present invention relates to a mechanism for enabling a guide rod to open and rotate, and for maintaining the open state. 2. Description of the Related Art Conventionally, a technique in which an underchain type feed chain can be opened and rotated to the side is known. For example, as disclosed in Japanese Utility Model Laid-Open No. 55-162533. It is also known to provide a feed chain guide rod so as to contact the upper surface of an under chain type feed chain, and to rotate the feed chain guide rod upward to release it. For example, as disclosed in Japanese Patent Application Laid-Open No. 63-112915. [0003] However, in the prior art, since the pivot portion of the feed chain guide rod is provided in the portion of the raising device, the portion between the raising device portion and the feed chain is provided. The feed chain guide rod must be extended as long as the feed chain guide rod itself is long, which increases the weight, and the distance between the pivot and the contact part to the feed chain is long. In this case, there is a high possibility that the engaged state between the feed chain and the feed chain guide rod is released due to the running vibration of the airframe or the rotational vibration of the feed chain. Therefore, in order to prevent the positional relationship between the feed chain and the feed chain guide rod from shifting, the feed chain guide rod must use a large diameter rod.
When the large-diameter guide rod is installed from the lifting device to the feed chain, there is a problem that the space of the portion is closed. The present invention has solved the problem of the conventional feed chain guide rod. Further, in the prior art, a side cover for preventing the stalks from protruding to the side is disposed immediately behind the raising device. The feed chain guide rod provided interferes. On the other hand, as in the present invention, the feed chain guide rod 2 is provided with a pivot at a position close to the feed chain 8 and near the upper end of the vertical transport device 3 so that the side cover of the raising device H can be connected to the side cover. Is configured to be able to avoid interference. Further, while the feed chain 8 is opened and rotated to the side, the feed chain guide rod 2 is opened and rotated upward, so that the position where the feed chain guide rod 2 is held in the open posture and the feed chain 8 are Since the positions to be opened and rotated to the side and maintained are different directions and separate directions, the feed chain 8 is opened and the space where the feed chain guide rod 2 is opened is widened, and the clogging and dust are cleaned. This facilitates work. [0004] The object of the present invention is as described above. Next, a configuration for achieving the object will be described. In a configuration in which the underchain type feed chain 8 is rotatable and openable to the side, the feed chain guide rod 2 abuts on the top end of the feed chain 8.
Between the leading end of the feed chain 8 and the raising device H.
A pivoting portion is provided and extended on the side close to the front end portion and near the upper end portion of the vertical transport device 3;
The feed chain 8 is configured to be brought into contact with the upper surface of the feed chain 8 in a biased state so that the opening rotation direction of the feed chain 8 can be opened laterally and horizontally.
The direction of rotation of the combine is characterized in that the feed chain 8 can be held laterally and horizontally in an open rotation state, and the feed chain guide rod 2 can be retracted upward. Feed chain mechanism. Next, the operation will be described. Since the feed chain guide rod 2 can be maintained upright in the release direction, the operator can open the feed chain 8 alone. Also, in the case where the feed chain guide rod 2 is present, the feed chain guide rod 2 is an obstacle, and it is difficult for the feed chain 8 to feed the handy grain culm. However, the feed chain guide rod 2 is released in an upright state, and this state is released. Because it can be maintained, it has become possible to easily perform hand-cutting work. The objects and constitutions of the present invention are as described above. Next, the constitution of the embodiment shown in the attached drawings will be described. FIG. 1 is an overall side view of the combine, FIG. 2 is a perspective view of a portion of a mowing transport section and a feed chain, FIG. 3 is an outer side view showing a support section of a feed chain guide rod 2 of the present invention,
4 is an inner side view, FIG. 5 is a front sectional view, and FIG. 6 is an exploded perspective view of a support portion of the feed chain guide rod 2. In the embodiment shown in FIG. 1, the side cover A together with the feed chain 8 is
Around the pivot at the rear end, it can be turned sideways to the position A '. In this rotating state, the handling cylinder, the crimping net below it and the swinging sorter can be seen from the side and can be cleaned by hand. The feed chain guide rod 2 which is a main part of the present invention abuts on the upper part of the front end of the feed chain 8 configured as an underchain type, and the grain stem passed from the vertical transport device 3 to the feed chain 8 scatters upward. It has the role of suppressing it from happening. [0008] The grain culm after being passed on to the feed chain 8 is inserted into the handling drum while holding the grain stalk between the chain guide 1 and conveyed to the straw processing device. is there. FIG. 2 shows the feed chain guide rod 2 and the feed chain 8 in detail. The cereal stem is caused by the raising device H at the front end of the combine, and is then cut off by the cutting blade, and the root portion is simultaneously transported by the root transport device 6, the tip portion is transported by the tip transport device 4, and the root portion is transferred. It is taken over by the vertical transport device 3 from the middle and rises rapidly, and is taken over by the feed chain 8 while being guided by the feed chain guide rod 2. The pivot portion of the feed chain guide rod 2 according to the present invention is configured to be located on the side away from the raising device H and close to the feed chain 8, so that the side cover of the raising device H and the feed chain guide rod are provided. It is configured such that the operation of rotating the upper part 2 does not interfere. In addition, the tip transport device 4 is put into the handling room while being assisted by the tip auxiliary transport device from the middle. The feed chain guide rod 2 which is a main part of the present invention is pivotally supported by a guide rod bracket 15 attached to a part of the cutting support pipe 14. Next, a specific configuration of the support portion of the feed chain guide rod 2 will be described with reference to FIGS. A guide rod bracket 15 is fixed to the lower surface of the reaping support pipe 14, and the guide rod bracket 15 is formed in a downward U-shape. The pivot shaft portion 2a of the feed chain guide rod 2 is inserted and pivotally supported by the guide rod bracket 15 from the left and right directions. An arm boss 10 is fixed to the pivot shaft portion 2a, and a turning arm 9 projects from the arm boss 10. One end of a spring locking body 11 of the fulcrum spring 7 is locked to the rotating arm 9, and the other end of the fulcrum spring 7 is fixed to a spring locking body 13 fixed to the cutting support pipe 14. I have. A pivot shaft portion 2a serving as a fulcrum is located between a position 2 where the feed chain guide rod 2 is in contact with the feed chain 8 in a biased state and a position where the feed chain guide rod 2 is rotated to a position 2 ′ which is an open state. Therefore, the support over spring 7 urges downward in the biased position 2 toward the feed chain 8 and urges in the release direction at the position 2 '. When the feed chain guide rod 2 is at the position 2 ', the rotating arm 9 is connected to the stopper pin 1.
2 to prevent further rotation. FIG. 7 is a side view showing a state in which a jam alarm switch 20 is attached to the base of the feed chain guide rod 2, FIG. 8 is a front sectional view of the same, and FIG. 9 is a side view showing the jammed state. In this configuration, between the feed chain guide rod 2 and the portion of the chain guide 1, a clogging alarm switch 2 when a grain stem is clogged on the feed chain 8.
0 is arranged. Conventionally, a technique in which a clogging alarm switch is provided at the end of the feed chain 8 and the receiving portion of the straw chain is known, but in this configuration, the feed chain 8 inherits from the feed chain guide rod 2 to the chain guide 1 at the front end. Since the clogging often occurs in the portion, the alarm switch of the portion is provided at the base of the chain guide 1. A switch operation cam 21 is provided at the pivot shaft portion 2a, and when the chain guide 1 is turned greatly due to the clogging, the clogging alarm switch 20 is operated by the switch operation cam 21 to warn of the clogging. The clogging alarm switch 20 provided in this manner always generates an alarm when the feed chain guide lever 2 is moved beyond the fulcrum when the feed chain 8 is opened. When the threshing operation is to be started, the same alarm as the clogging alarm is issued to warn the operator that the feed chain guide rod 2 is not returned to the normal state. FIG. 10 shows a configuration in which an auxiliary chain guide 22 is formed by a leaf spring in parallel with the chain guide 1. Since the chain guide 1 is formed of a round bar, the elasticity thereof is slightly poor, so that the auxiliary chain guide 22 formed of a leaf spring can be moved from the portion of the pivot shaft portion 2a so that the chain guide 1 can be more flexibly held between the grain stems. It protrudes and is provided in parallel. The auxiliary chain guide 22 can also rotate and maintain the released state similarly to the chain guide 1. The present invention is configured as described above, and has the following effects. First, while the feed chain 8 is opened and rotated laterally and horizontally,
The feed chain guide rod 2 is pivoted upward to open, and the feed chain guide rod 2 is opened.
Because the feed chain 8 and feed chain are separated in different directions,
And open the feed chain 8 laterally and horizontally.
To maintain the release rotation, a large space for maintenance work can be taken.
It is possible to maintain the crimping network and the like over the feed chain as before.
The feed chain guide rod is not obstructed,
Maintenance work such as cleaning of dust can be easily performed. Secondly, in the prior art, since the pivot portion of the feed chain guide rod is provided in the portion of the raising device, the long feed chain guide rod extends from the portion of the raising device to between the feed chains. The length of the feed chain guide rod itself increases the weight, and the distance between the pivot and the contact part of the feed chain is long. There was a high possibility that the engagement state between the feed chain and the feed chain guide rod would be released due to the rotational vibration. Therefore, in order to prevent the positional relationship between the feed chain and the feed chain guide rod from shifting, the feed chain guide rod must use a large-diameter rod. There is also a problem that the space from the part to the feed chain is closed by being installed from the feed chain to the feed chain. In the present invention, the pivot portion of the feed chain guide rod 2 is provided between the leading end of the feed chain 8 and the raising device H, on the side near the leading end of the feed chain 8 and near the upper end of the vertical transport device 3. Because of this, the length of the feed chain guide rod 2 itself can be shortened, and the space between the rear portion of the raising device H and the vertical transport device 3 can be reduced.
The clogging was eliminated. Thirdly, in the prior art, a side cover for preventing the stalks from protruding to the side is disposed immediately behind the raising device.
There is a possibility that the upward rotation of the feed chain guide rod provided with a pivotal support portion in the raising device may interfere with the feed chain guide rod.
By providing the pivotal support at a position close to the upper end of the vertical transport device 3 on the side close to the vertical transport device 3, it is possible to avoid interference with the side cover of the device H.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall side view of a combine. FIG. 2 is a perspective view of a portion of a reaper conveyance section and a feed chain. FIG. 3 is an outer side view showing a support portion of the feed chain guide rod 2 of the present invention. FIG. 4 is an inner side view of the same. FIG. 5 is a front sectional view. 6 is an exploded perspective view of a support portion of the feed chain guide rod 2. FIG. FIG. 7 is a side view of a state in which a clogging alarm switch 20 is attached to the base of the feed chain guide rod 2; FIG. 8 is a front sectional view of the same. FIG. 9 is a side view showing a clogged state. 10 is a perspective view in which an auxiliary chain guide 22 is provided in parallel with the chain guide 1. FIG. [Explanation of Signs] 1 Chain guide 2a Pivot shaft 2 Feed chain guide rod 7 Spring over fulcrum 8 Feed chain

Claims (1)

Claims: 1. In a configuration in which an underchain type feed chain 8 is rotatable and openable to the side, a feed chain guide rod 2 contacting an upper end of the feed chain 8 is provided with a feed chain. A pivot is provided between the tip of the chain 8 and the lifting device H on the side near the tip of the feed chain 8 and near the upper end of the vertical transport device 3 to extend therefrom. The feed chain 8 is configured so that the opening rotation direction of the feed chain 8 is lateral and can be opened in the horizontal direction, the rotation direction of the feed chain guide rod 2 is upward, and the feed chain 8 is And horizontal
A feed chain mechanism for a combine, characterized in that the feed chain guide rod 2 can be retracted upward while being able to be held in the open and rotated state.