JPH08802U - Ordinary combine second mower - Google Patents

Abstract

(57) [Summary] [Purpose] With a second mower mounting configuration that is installed in front of the crawler of a normal combine harvester, it can be raised and lowered substantially parallel to the raising and lowering of the mowing section, and the cutting height of the residual culm can be easily set, and the grain culm can be cleaned. The aim is to get a second more that can be mowed. [Structure] A cutting blade 17 is installed laterally at the tip of a platform 15, and the platform 15 and the threshing device are connected by a feeder house 13, and the platform 15 and the feeder house 13 are moved up and down with respect to the machine body frame 2 by a hydraulic cylinder 14. In the rotating ordinary combine harvester, below the feeder house 13, a second mower A for cutting the remaining culm after cutting with the cutting blade 17 is provided sideways, and a cylinder 30 for moving the second mower A up and down. The link mechanisms 24L, 25, 24R and 26 were fixedly supported by the feeder house 13.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a mounting structure of a second mower provided in front of a crawler of a normal combine harvester.

[0002]

[Prior art]

 Conventionally, the cutting blades provided in the front part of the feeder house of a normal combine harvester were used to mow the grain culms and scrape the grain culls into the feeder house to deliver them to the threshing device. Since it is too high to cut from the root of a grain culm, it is known that a second mower is provided between the cutting blade and the crawler to cut off the residual culm from the root. For example, the techniques disclosed in Japanese Patent Laid-Open No. 62-195217 and Japanese Utility Model Laid-Open No. 63-10838 are available. Further, as a technique for elevating and lowering the harvesting portion of the combine by a parallel link mechanism, a technique as described in Japanese Utility Model Publication No. 50-43454 is known.

[0003]

[Problems to be solved by the device]

 However, in the conventional mounting technique of the second mower, as shown in FIG. 8, since the rotation center of the second mower A'is provided on the machine body frame 2, the reaping part of the second mower A'is moved up and down in an arc shape. This means that when cutting in the ascending state, the grain culms enter from the back side of the cutting blade and are mowed. Therefore, the grain culm was knocked down before it was cut, and it was not possible to cleanly trim it. In view of the above, the present invention is configured as follows so that the second mower can be raised and lowered substantially in parallel.

[0004]

[Means for solving the problem]

 The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described. A cutting blade 17 is provided horizontally at the tip of the platform 15, and the platform 15 and the threshing device are connected by a feeder house 13, and the platform 15 and the feeder house 13 are lifted and lowered with respect to the machine frame 2 by a hydraulic cylinder 14. In the moving ordinary combine harvester, below the feeder house 13, a second mower A for further cutting the remaining culm after cutting by the cutting blade 17 is provided horizontally, and a cylinder 30 for elevating and lowering the second mower A is provided. The link mechanisms 24L, 25, 24R and 26 are fixedly supported on the feeder house 13.

[0005]

【Example】

 The purpose of the present invention is as described above, and an embodiment of the present invention will be described based on the configuration of the embodiment shown in the accompanying drawings. FIG. 1 is an overall side sectional view of a normal combine, FIG. 2 is a perspective view of a second mower elevating part of the present invention, FIG. 3 is a side view of the same, FIG. 4 is a perspective view of a second mower supporting part on the opposite side, and FIG. 6 is a perspective view when the second mower is raised, and FIG. 7 is a perspective view when the second mower is lowered.

The overall configuration will be described with reference to FIG. A machine body frame 2 is placed on the crawler type traveling device 1, and a mission case 3, an engine compartment 4, and a cabin 5 are arranged in front of the machine body frame 2. On the rear side of the center of the machine body frame 2 is placed a sorting device made of Kara Minoh 6, chaff sheave 7, grain plate, etc., and a threshing device consisting of a crimp net 8 and a screw rotor 9 is arranged on the sorting device. ing. A grain tank 10 is arranged at the rear of the cabin 5 to store fine grains, and a discharge auger 11 is projected on the grain tank 10.

A feeder house 13 having a feeder conveyor 12 therein is connected to the front end of the screw rotor 9, and the feeder house 13 is moved up and down by a hydraulic cylinder 14 interposed between the feeder house 13 and the front end of the machine body frame 2. A platform 15 is projectingly provided at a front portion of the feeder housing 13, and a platform auger 16 is provided laterally in the platform 15. A cutting blade 17 is provided laterally on the front part of the platform 15, a divider 18 is projected at the front end, and a scraping reel 19 is arranged on the divider 18.

The second mower A of the present invention is provided below the feeder house 13. That is, as shown in FIGS. 2, 3 and 4, support plates 20 and 21 are attached to both side surfaces of the feeder house 13, and support shafts 22 and 23 are provided on the support plates 20 and 21 and the feeder house 13, respectively. The link mechanisms 24L, 24R, 25, 26 are pierced through both ends of the support shafts 22, 23, and the support frame 27 is pivotally connected to the other ends of the left side link mechanisms 24L, 25. A stopper 28 that restricts downward rotation is provided on the moving base.

A support frame 29 is pivotally supported at the other ends of the right side link mechanisms 24R and 26, the center portion of the link 26 is pivotally supported by the support shaft 23, and the upper end of the cylinder 30 is at the opposite end. It is pivotally supported. However, it is also possible to pivotally connect the cylinder 30 to other links. A motor 31 is attached to a side surface of the cylinder 30, and a rotation of the motor 31 is transmitted to the cylinder 30 by a gear case 32 provided on an upper portion of the cylinder 30. The cylinder 30 has a threaded rod so that the cylinder rod 30a can expand and contract. It is configured as The motor 31 can be operated by a switch in the cabin 5 and can be rotated forward and backward.

The tip of the cylinder rod 30 a is pivotally supported by a pin 33 standing on the support plate 20, one end of a connecting rod 34 is also pivotally supported by the pin 33, and the other end of the connecting rod 34 is also supported. Is pivotally connected to the tip of an arm 35 pivotally supported at a midpoint of the support frame 29. A base of a tension arm 36 is fixed to the other end of a pivot shaft 37 fixed to the lower end of the arm 35, and the tension arm 36 is also pivotally supported by a support frame 29 to be rotatable. A tension pulley 40 is pivotally supported at the tip of the tension arm 36. The tension pulley 40 includes a pulley 41 pivotally supported on the upper part of the support frame 29 and a pulley 43 protruding to the side of a gear case 42 provided at the lower end of the support frame 29. The belt 44 interposed between them can be tensioned.

A drive shaft 45 is projected in front of the gear case 42, a swing link 46 is fixedly mounted on the drive shaft 45, and a link 47 is moved left and right to reciprocate a cutting blade 49 as shown in FIG. I am making it happen. The structure for driving the cutting blade 49 is such that a sprocket 57 is fixedly mounted on an output shaft 56 for driving the feeder conveyor 12 which is horizontally installed above the feeder house 13, and the sprocket 57 and the support shaft 23 are mounted on the output shaft 56. A chain 55 is wound between two sprockets 53, 54 pivotally supported on one side, and one of the sprockets 54, and a sprocket 51 fixed to a shaft 50 standing on the sprocket 53 and the support frame 29. A chain 52 is wound between them, and a pulley 41 fixed on the shaft 50 rotates a pulley 43 via a belt 44 to transmit power to a gear case 42, and a drive shaft 45 drives a cutting blade 49. .

[0012]

[Action]

 In such a configuration, when the cylinder 30 is contracted, the second mower A is raised, the belt 44 is slackened, and the tension pulley 40 is idle as shown in FIG. ing. Then, when the motor 31 is driven to extend the cylinder 30, as shown in FIG. 7, the pin 33 is stretched to rotate the link 26 around the support shaft 23, and the link mechanism 24L arranged in parallel. , 24R, 25, and 26, the supporting frames 27 and 29 pivotally supported at the other ends are rotated downward substantially in parallel. At the same time, the connecting rod 34 connected to the support frame 29 is also rotated downward, the arm 35 is pushed and the tension arm 36 is also rotated, the belt 44 is tensioned, and the power is transferred from the pulley 41 to the pulley 43. It is transmitted and the cutting blade 49 is reciprocated. As the second mower A is raised, the pressing force of the tension pulley 40 is reduced, and the power transmission is cut off at the most raised position.

[0013]

[Effect of device]

 With the above structure, the present invention has the following effects. First, the cutting height of the main cutting blade 17 of the ordinary combine harvester is determined by vertically rotating the part of the feeder house 13 with respect to the machine body frame 2. The second mower A is also moved up and down along with the raising and lowering of the cutting, and the raising and lowering by the cylinder 30 is adjusted when the cutting height of the remaining culm is set with respect to the cutting height by the cutting blade 17. The cutting height can be easily set. Secondly, the second mower A moves up and down together with the cutting blade 17 instead of lifting and lowering the second mower A independently of the vertical movement of the platform 15, the platform auger 16 and the cutting blade 17 as in the prior art. Apart from the raising and lowering of the mowing section, it is no longer necessary to perform the raising and lowering operations of the second mower A in parallel, and the operability during work can be improved. Thirdly, when the feeder house 13 is fully raised, the second mower A is also raised at the same time, so it is possible to raise a large amount in front of the lower part of the fuselage and take an open space. The second mower A is less likely to get in the way during maintenance.

[Brief description of drawings]

FIG. 1 is an overall side sectional view of an ordinary combine harvester.

FIG. 2 is a perspective view of a second mower elevating part of the present invention.

FIG. 3 is a side view of the same.

FIG. 4 is a perspective view of a second mower supporting portion on the opposite side.

FIG. 5 is a perspective view of a cutting blade drive unit.

FIG. 6 is a perspective view when the second mower is raised.

FIG. 7 is a perspective view of the same when descending.

FIG. 8 is a side view of a conventional second mower mounting portion.

[Explanation of symbols]

 A Second More 13 Feeder House 22,23 Support Shaft 24L, 24R, 25,26 Link Mechanism 27,29 Support Frame 30 Cylinder

Claims (1)

[Scope of utility model registration request] 1. A cutting blade 17 at the tip of the platform 15.
In the ordinary combine harvester in which the platform 15 and the threshing device are connected by the feeder house 13 and the platform 15 and the feeder house 13 are rotated up and down with respect to the machine frame 2 by the hydraulic cylinder 14, A second mower A for cutting the remaining culm after cutting with the cutting blade 17 is provided below 13 and a cylinder 30 for raising and lowering the second mower A is provided.
A second combiner of a normal combine, characterized in that the link mechanism 24L, 25, 24R, 26 is fixedly supported by the feeder house 13.