JPH065705Y2 - Attaching structure of the weeding rod in the harvester - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is designed to switch the shunt rod between an operating position in which it projects outward from the fuselage and a retracted position in which it retracts toward the inside of the fuselage. A tip end is pivotally supported on the machine body around a first axial center in the machine front-rear direction, and the free end side of the weed rod and the machine body are connected to each other by a connecting rod which is adjustable in expansion and contraction. The attachment structure of a weeding rod in a harvesting machine.

[Conventional technology]

In the above harvesting and harvesting machine, by expanding and contracting the connecting rod, the abutment position of the weeding rod to the planting stem culm can be adjusted to a predetermined position regardless of the length of the planting stem culm. .

In addition, conventionally, the above weed rod has been constructed as shown below.

That is, (a) as shown in FIG. 8, one end of the adjustable connecting rod (21) is attached so as to be swingable and fixed around the second axis (X ₂ ) along the longitudinal direction of the machine body. It is fixed to the bracket (20) and the other end is slidable in the long hole (31A) formed in the bracket (31) attached to the free end side of the weeding rod (18). The elongated holes (31A) absorb changes in the connecting position of the connecting rods (21) by connecting them through the inserted pins (32).

(B) For example, as disclosed in Japanese Utility Model Publication No. 47-37309, the tip of the bait rod and the body are pivotally supported by a ball joint, and the free end of the bait rod and the body are Both ends of the telescopic connection interposed therebetween and the weed rod and the fuselage side are pivotally supported by ball joints, respectively.

The composition was known.

[Problems to be solved by the invention]

However, in the conventional configuration of (a) above, impurities may enter and accumulate in the long hole (31A) with long-term use, and therefore, the connecting rod (21) for the long hole (31A) may be deposited. Movement is not performed smoothly, and it is difficult to perform the position adjustment operation of the abutment rod (18) in the abutment action.For example, if the position of the rod (18) is forcibly adjusted, the connecting rod (21) and the rod The connection part with (18) was sometimes broken.

Further, in the above-mentioned (b) conventional structure, the tip end of the weeding rod and the airframe are pivotally supported, and the both ends of the connecting rod and the weeding rod and the airframe side are ball joints. Therefore, it is possible to solve the problem of (a) above.
Since a ball joint, which is highly difficult to process and manufacture, is used, it is expensive.

The present invention has been made in view of the above situation, and there is no catch of straw debris or the like at the pivotal support point between the connecting rod and the free end of the weeding rod. An object of the present invention is to provide a weeding rod attachment structure for a harvesting harvester that can be used satisfactorily over a wide range and can be constructed at low cost.

[Means for solving problems]

The weed rod mounting structure in the harvesting machine according to the present invention is
In order to achieve the above object, in the structure described above,
A bracket is provided on the machine body side so as to be swingable and fixable around a second axis center along the machine front-rear direction, and the bracket is attached to the bracket along a direction orthogonal to the second axis center. One end of the connecting rod is pivotally connected so as to be swingable around a third axis that is in a posture along the lateral direction of the machine body in the retracted position, and the other end of the connecting rod is connected to the weeding rod. It is characterized in that it is pivotally connected so as to be swingable around a fourth axis parallel to the third axis.

The operation and effect of this characteristic configuration are as follows.

[Action]

That is, when the connecting rod is expanded and contracted to change the contacting position of the stalk according to the culm length of the planting culm, one end of the stalk is attached to the second axis along the machine longitudinal direction. Since it relatively rotates around the third axis in the direction orthogonal to the axis, and the other end of the connecting rod relatively rotates with respect to the branch rod about the fourth axis parallel to the third axis. The expansion and contraction adjustment of the connecting rod can be smoothly performed without twisting or very little while keeping the connecting position of the connecting rod with respect to the weeding rod at the predetermined position.

[Effect of device]

Therefore, by configuring as described above, even if the connecting position of the connecting rod with respect to the weeding rod is not changed, the connection is made by switching the overhanging posture and the storing posture of the weeding rod without using the ball joint. Since the expansion and contraction of the rod can be adjusted,
As in the past, it is possible to eliminate the need for brackets and ball joints that have long holes that absorb changes in the connecting position due to changes in the length of the connecting rod, and with a cheap structure, ensure the operation of the connecting rod due to the adhesion of foreign matter Therefore, it is possible to provide a weeding rod that can be satisfactorily used for a long period of time without causing trouble such as damage to the connecting portion between the connecting rod and the weeding rod.

〔Example〕

As shown in FIG. 7, a pair of left and right crawler traveling devices (1),
(1), threshing section (2), control section (3), etc.
The harvesting pretreatment section (A) is arranged by a hydraulic cylinder (4) so that it can be moved up and down freely to form a combine.

As shown in FIGS. 5 and 6, two raising devices (5) and (5) are installed side by side in the lateral direction of the machine to configure the pre-cutting processing section (A). Equipment (5), a rearing of the (5) is provided with a mowing device (6) for mowing the raised grain culms, and a pair of left and right belt types for confluently conveying the raised grain culm to the center side of the mowing device (6) Along with the front transport device (7), (7), a pair of left and right stock packers (8), (8) are provided at the transport terminal end of the belt type front transport device (7), (7), and Said stock packer
A vertical conveyor device (9) is provided behind (8) and (8) to convey a grain culm to the threshing section (2).

One of the belt type front conveying devices (7), (7) located on the right side is configured to be swingable around the longitudinal axis on the rear side, and cuts long culm / medium culm culms. In this case, by arranging the belt type front transport device (7) on the right side in the swinging position shown by the solid line in FIG. 6, it is transported backward while being raised by the raising devices (5), (5). Set the right belt-type front transport device (7) in the non-locking action posture so that the right belt-type front transport device (7) is not locked by the existing grain culm and the posture is not disturbed in the planted grain culm. It is possible to prevent the deterioration of the stock alignment, and in the case of cutting short culm culms, by positioning the right belt type front transport device (7) at the swing position shown by the two-dot chain line in FIG. , The raising device (5), the upper part of the (5) can not be locked to the short grain culm, the belt type front transport device (7) on the right side in the locking action posture Good without Do conveyed are to allow. The right raising device (5)
Immediately after that, a first guide plate (10) for guiding to the front end of the right belt type front conveying device (7) is provided.

A second guide plate (11) for guiding the grain stem along the longitudinal direction of the machine is formed rearward of the raising devices (5), (5) and in the center of the machine in the lateral direction of the machine. And a first guide rod (12) for guiding grain culms, a second guide rod (13) of the same shape and located above and for guiding grain culms, and above the second guide rod (13) Third guide rod for guiding grain culm (14)
Are provided for each. The vertical transfer device (9) is composed of a pinching transfer device (15) for pinching and transferring the root side of the transfer culm and a locking transfer device (16) for locking and transferring the tip end side of the transfer culm. There is. Then, a support frame (15a) that rotatably supports the sandwiching chain (15A) of the sandwiching and conveying device (15) forms a conveying movement path with the sandwiching rail (15B) of the sandwiching and conveying device (15). Attach the guide rod (17) and packer
The transfer from (8) and (8) to the vertical transfer device (9) can be reliably performed.

On the lateral side of the combine, there is provided a weeding rod (18) which can be swung freely between an operating position projecting laterally outward of the fuselage and a retracted position retracting to the inside of the fuselage. The mounting structure of the rod (18) will be described in detail.

As shown in FIG. 1 and FIG. 2, the tip of the weeding rod (18) is attached to a bracket (33) attached to the front end of a support frame (19) for supporting the reaping device (6). First along the direction
While pivotally supporting around the shaft center (X ₁ ), the free end side of the weeding rod (18) and the machine body are connected by a connecting rod (21) that is adjustable in expansion and contraction, and as described above. , The branch rod (18) is switchable to two positions and swingable.

Next, a mounting structure of the connecting rod (21) will be described.

As shown in FIGS. 3 and 4, a bracket (20) is provided on the machine frame (22) so as to be swingable and fixable around a second axis (X ₂ ) along the machine longitudinal direction, and the bracket ( 20)
On the other hand, the third axis (Y ₁ ) is in a posture along the direction orthogonal to the second axis (X ₂ ) and in the left-right direction of the machine body with the shunt rod (18) in the retracted position. ) One end of the connecting rod (21) is pivotally connected so as to be swingable around the connection rod, and the connecting rod (21) is further connected.
The other end is pivotally connected to the dividing rod (18) so as to be swingable around a fourth axis (Y ₂ ) parallel to the third axis (Y ₁ ).

More specifically, the bracket (20) is the fuselage frame.
A U-shaped frame (23) fixed to (22) is rotatably supported around the pin axis, that is, the second axis (X ₂ ) via a pin (24). Then, the bolt (2) that is inserted into the long hole (20A) formed in the bracket (20) and the frame body (23).
5) A pair of spring receivers (26), (26) are externally fitted, and a spring (27) is arranged between these spring receivers (26), (26), and the bracket (20) is placed at any position. A friction holding mechanism (B) that can be fixed by is constructed. The friction force of the friction holding mechanism (B) can be adjusted by rotating a pair of nuts (28) screwed onto the bolts (25).

The connection rod (21) is slidably fitted into the body-side first tubular body (21A) pivotally connected to the bracket (20) side and the first tubular body (21A), And a second bushing rod-side second tubular body (21B) pivotally connected to the bushing rod (18) side around the third axis (Y ₁ ) so as to swing, and For the pin hole (21a) formed in the first tubular body (21A), the second tubular body (2
1B) with any pin hole (2b)
1b) is selected and the pin (29) is inserted over both of these pin holes (21a) and (21b) to adjust the expansion and contraction of the connecting rod (21) so that the weeding rod (18) is connected to the grain culm. The working position can be changed.

Incidentally, (30) shown in FIG. 2 is a side cover.

[Another embodiment]

In the above embodiment has been set nonparallel slightly inclined body front-rear direction of the second axial (X ₂₎ relative to the first axis of the body front-rear direction (X _1), these two axis (X ₁ ) And (X ₂ ) may be set in parallel or may be set in the same axis.

It should be noted that reference numerals are added to the claims of the utility model for convenience of comparison with the drawings, but the present invention is not limited to the structure of the accompanying drawings by the entry.

[Brief description of drawings]

The drawings show an embodiment of a weeding rod mounting structure in a harvesting and harvesting machine according to the present invention. FIG. 1 is a partially cutaway plan view, FIG. 2 is a partially cutaway side view, and FIG. FIG. 4 is a side view, FIG. 4 is a front view of a main part, FIG. 5 is a side view of the pre-mowing treatment unit, FIG. 6 is a plan view of the pre-mowing treatment unit, and FIG. 7 is a side view of the combine front portion. FIG. 8 is a partially cutaway side view showing a conventional example of a weeding rod mounting structure. (18) …… Spring rod, (20) …… Bracket, (21) …… Connecting rod, (X ₁ ) …… First axis core, (X ₂ ) …… Second axis core, (Y ₁ ). …… The 3rd axis core, (Y ₂ ) …… The 4th axis core.

Claims (1)

[Scope of utility model registration request] 1. A tip of the weeding rod (18) is located at one end in order to switch the weeding rod (18) between an operating position in which it projects laterally outward from the fuselage and a retracted position in which it retracts toward the inside of the fuselage. A connecting rod (21) that pivotally supports the airframe around a first axis (X ₁ ) along the longitudinal direction of the airframe and that can freely adjust the free end side of the weeding rod (18) and the airframe. A structure for mounting a weeding rod in a harvesting and harvesting machine connected by means of a bracket (20) that is swingable and fixable around a second axis (X ₂ ) along the machine longitudinal direction on the machine side.
The bracket (20) is provided along the direction perpendicular to the second axis (X ₂ ) and the branch rod (18).
Is pivotally connected to one end of the connecting rod (21) so as to be swingable around a third axis (Y ₁ ) which is in a posture along the left-right direction of the machine when the connecting rod (21 ) In the reaper and harvester, in which the other end is pivotally connected to the dividing rod (18) around a fourth axis (Y ₂ ) parallel to the third axis (Y ₁ ). Divider rod mounting structure.