JPH0324014Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a collapsible shock absorber for a discharge chute in a working machine such as a maize harvester.

<Prior art> As a collapsible shock absorber for a discharge chute in a maize harvester, there is one shown in FIG. The discharge chute 52 is
As shown by the solid line in FIG. 5, there is an upright posture in which the maize is erected in a horizontally overhanging manner and the finely cut maize is released in the horizontal direction, and as shown in the imaginary line in FIG. Brackets 53 and 54 are pivotally supported so as to be freely changeable in a laid-down position on the exit side, and protrude from the mounting base 51 and the discharge chute 52, respectively.
There is a type in which a gas spring 55 is interposed in a spring-like manner to hold the discharge chute 52 in a laid-down position.

In the above device, the posture of the discharge chute 52 can be easily changed by the elastic force of the gas spring 55.

<Problems to be Solved by the Invention> However, in the above-mentioned conventional device, the bracket 54 is simply provided protruding from the discharge chute 52 which does not have much strength, and the end of the gas spring 55 is attached to the bracket 54. By repeatedly changing the posture of the discharge chute 52, the bracket 54 of the discharge chute 52 can be connected.
There was a problem that the connecting part and the parts near it were easily broken or damaged.

SUMMARY OF THE INVENTION An object of the present invention is to provide a collapsible shock absorber for a discharge chute in a working machine that does not cause the discharge chute to be damaged or damaged even if the posture of the discharge chute is repeatedly changed.

<Means for Solving the Problems> In order to achieve the above object, the present invention is characterized by having a rectangular cylindrical main body 29 and a base end of the main body 29 fixed to the working machine main body 11. The discharge chute 10, which includes a flange portion 30, can be freely changed between an upright position in which it is erected in a lateral direction and discharges the ejected material in the lateral direction, and a collapsed position in which it is laid down. A reinforcing member that connects the ends of the gas spring 38 in a structure in which a gas spring 38 is pivotably supported and is interposed between the work equipment main body 11 and the discharge chute 10 to hold the discharge chute 10 in a laid down position. 37 is placed on the flange portion 30 and fixed thereto, and is also fixed along the longitudinal direction on the outer surface of the base of the square tubular body portion 29, so that the distal end side of the reinforcing member 37 is attached to the longitudinal direction of the square tubular body portion 29. The end of the gas spring 38 is connected to the protruding tip, and the tip of the rectangular cylindrical main body 29 and the reinforcing member 3 are connected to each other.
A turnbuckle 44 is connected between the end portion of the turnbuckle 7 and the end portion of the turnbuckle 44.

<Example> Hereinafter, an example in which the present invention is applied to a maize harvester will be explained based on the drawings of Figs. 1 to 4. Fig. 2 shows the working state, 1 is a maize harvester, A three-point linkage mechanism 3 is attached to the rear of the tractor 2 so that it can be raised and lowered. Reference numeral 4 denotes a container that runs alongside the harvester 1 and is connected to the rear of the tractor 6 via a traction rod 5.

As shown in FIG. 3, the harvester 1 is roughly divided into a retraction section 7, a compression section 8, a cutting section 9, a discharge chute 10, etc.; A harvester main body 11 is constructed, and the harvester 1 harvests maize A while being towed by a tractor 2.

The maize A is guided by the deviter 12 of the retracting section 7, tilted forward by the guide rod 13, its root is cut off by the retracting drum 14, and then fed into the compression section 8.

The maize A sent to the compression section 8 is compressed from its lower part and sent to the cutting section 9, where it is cut into pieces and discharged into the container 4 by the discharge chute 10.

To explain in more detail in FIG. 1, 15 is a casing of the cutting part 9, which has a maize supply port 16 at the connection part with the compression part 8, a part of the drive device 17 on the back, and a part of the drive device 17 on the upper part of one side. A discharge chute 1 communicating with the inside of the casing 14 via a chute mount 18
0, a traction frame 19 is provided on one side of each. The traction frame 19 supports the main body of the drive device 17.

The supply port 16 has a rectangular shape, and a fixed blade 20 is provided on the edge of the supply port.

Reference numeral 21 denotes a flywheel, which is rotatably supported in the casing 15 by a rotating shaft 22. A plurality of movable blades 23 and fixed blades 20 are fixed to the flywheel 21 at equal intervals in the circumferential direction, and a supply port is connected to the flywheel 21. Maize A supplied from 16 is cut into pieces. Reference numeral 24 indicates blow-up blades, and a plurality of blades are fixed to the outer periphery of the flywheel 21 at equal intervals in the circumferential direction.
is sent to the discharge chute 10 via.

The mounting base 18 is provided at the upper end of one side of the casing 15 so as to be rotatable and fixed around the vertical axis, and includes a cylindrical main body and square-shaped upper and lower flanges fixed to the upper and lower ends of the main body 25. It consists of parts 26 and 27.

The discharge chute 10 is mounted on a mounting base 18 with a hinge 2
As shown by the solid line in FIG. 1
As shown by the imaginary line in the figure, the posture can be freely changed between a laid-down posture and a laid-down posture on the above-mentioned overhanging side.

The distal end of the discharge chute 10 opens in a substantially horizontal direction, and includes a curved rectangular cylindrical main body 29;
It consists of a square flange portion 30 fixed to the base end of the main body portion 29 and a groove-shaped guide portion 31 provided at the distal end portion of the main body portion 29.

The mounting base 18 and the flanges 26 and 30 of the discharge chute 10 are removably fixed with bolts and nuts 32 on the opposite side of the hinge 28, thereby fixing the discharge chute 10 in an upright position.

The hinge 28 is connected to a pair of protruding plates 3 fixed to the main body 29 and the upper flange 26 of the mounting base 18.
3, and a pair of protruding plates 34 similarly fixed to the main body part 29 and flange part 30 of the discharge chute 10.
and a support shaft 35 inserted through the protruding plates 29, 34.
It consists of

36 is a bracket, which is attached to the main body 29 of the mounting base 18.
and is welded to the upper flange portion 26 so as to protrude laterally outward.

37 is a long and thin plate-shaped reinforcing material, and the discharge chute 1
The reinforcing member 37 extends along the outer surface of the base of the discharge chute 10, and its base end is welded to the flange portion 30 of the discharge chute 10.
The parts extending along the main body part 29 are welded to the main body part 29 at several places or over the entire length.

The tip end of the reinforcing member 37 is made to protrude from the midway in the longitudinal direction of the main body 29 of the discharge chute 10.

Reference numeral 38 denotes a gas spring, which is pivotally attached to the respective tips of the bracket 36 and the reinforcing member 37 by pins 39 and 40, so that it is interposed between the tips in a resilient manner, and the discharge chute 10 is placed in a laid-down position. It is made up of a cylinder 41 and a piston rod 42 with a piston, and the inside of the cylinder 41 is filled with high pressure gas such as nitrogen gas.

Reference numeral 43 denotes a bracket that protrudes from the tip of the main body 29 of the discharge chute 10, and a turnbuckle 4 is installed between the bracket 43 and the tip of the reinforcing member 37.
4 is interposed.

The turnbuckle 44 has a cylindrical body 45 and a cylindrical body 45.
It consists of a pair of screw shafts 46 which are screwed in such a manner that they can move forward and backward, a lock nut 47, an operating lever 48, etc., and prevents the discharge chute 10 from deflecting.

According to the embodiment configured as described above, when storing the harvester 1, first, the bolts between the mounting base 18 and the flange portions 26, 30 of the discharge chute 10 are connected.
Release the fixation by the nut 32.

Next, when a force is applied to rotate the release chute 10 toward the prone position, the above force and the release chute 1
Due to its own weight of 0, the discharge chute 10 overcomes the elastic force of the gas spring 38 and easily rotates to the lying position.

In this case, as the discharge chute 10 approaches the lodging position, the gas inside the gas spring 38 is compressed, and the rotational speed of the discharge chute 10 is gradually reduced. When the dynamic velocity becomes zero, the discharge chute 10 is held by the gas spring 38.

Furthermore, when changing the posture of the discharge chute 10 from the above state to the upright position, a force is applied to rotate the discharge chute 10 to the upright position, thereby combining the above force and the elasticity of the gas spring 38. Due to the force, the discharge chute 10 overcomes its own weight and easily rotates to the upright position.

Then, the mounting base 18 and the discharge chute 10
and fix it.

In the embodiment, the discharge chute is not fixed in the lying position, but it may be fixed. Further, the present invention can be applied to harvesting machines other than maize harvesters, snow removal machines, and other working machines.

<Effects of the Invention> As described in detail above, in the present invention, the reinforcing member 37 that connects the ends of the gas spring 38 is placed and fixed on the flange portion 30, and the base portion of the rectangular cylindrical main body portion 29 is The reinforcing member 37 is fixed to the outer surface along the longitudinal direction, and the distal end side of the reinforcing member 37 is made to protrude from the middle part in the longitudinal direction of the rectangular cylindrical main body part 29, and the end of the gas spring 38 is connected to the protruding distal end part. Therefore, the reinforcing material 37 can be stably and firmly fixed to the discharge chute 10 over a wide range, and by changing the posture of the discharge chute 10, the gas spring 55 can be elastically attached to a part of the discharge chute 10. There will be no concentration of force, and even if the attitude of the ejection chute 10 is repeatedly changed, there is no risk of the ejection chute being damaged or damaged.

In addition, the tip of the rectangular cylindrical main body 29 and the reinforcing material 37
Since the turnbuckle 44 is connected between the distal end of the discharge chute 10, the turnbuckle 44 can effectively prevent the distal end of the discharge chute 10 from being bent. Moreover, since the turnbuckle 44 is connected to the distal end of the reinforcing member 37, there is no risk that the proximal end of the discharge chute 10 will be damaged due to the tensile force of the turnbuckle 44, and the reinforcing member 37 is connected to the gas spring. 55 and the tambuckle 44, it is possible to reduce the number of structural members, the overall structure can be made as simple as possible, and it can be manufactured easily and inexpensively, which has practical effects. is significant.

[Brief explanation of drawings]

1 to 4 show an embodiment of the present invention,
Fig. 1 is a front sectional view of the main parts, Fig. 2 is a simplified plan view of the whole, Fig. 3 is a simplified side view of the maize harvester, Fig. 4 is a sectional view taken along the - line in Fig. 1, and Fig. 5 is a sectional view of the main part.
The figure is a front view showing a conventional example. 1... Maize harvester (work machine), 10...
Release chute, 11... Harvester main body (work equipment main body), 28... Hinge, 37... Reinforcement material, 38
……gas spring.

Claims (1)

[Claims for Utility Model Registration] A discharge chute 10 including a rectangular cylindrical main body 29 and a flange 30 fixed to the base end of the main body 29 is attached to the work machine main body 11 in a horizontally extending manner. an upright position in which the ejected material is emitted in the horizontal direction;
A gas spring 38 is interposed between the working machine main body 11 and the discharge chute 10 in a resilient manner, the gas spring 38 is pivotally supported so as to be freely changeable in the laid-down position, and holds the discharge chute 10 in the laid-down position. A reinforcing member 37 connecting the ends of the gas spring 38 is placed on and fixed to the flange portion 30, and is also fixed along the longitudinal direction to the outer surface of the base of the rectangular cylindrical main body portion 29. The distal end side of the rectangular cylindrical main body 29 is made to protrude from the longitudinal direction middle part of the rectangular cylindrical main body 29, and the end of the gas spring 38 is connected to the protruding distal end.
A collapsible shock absorber for a discharge chute, characterized in that a turnbuckle 44 is connected between the distal end of the discharge chute and the distal end of the discharge chute.