JP2001178243A - Ladder mounting structure for upper inspection of the combine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combine harvester structure that can receive the ladder to be used for inspecting the upper part of the combine harvester so that it may not project outward than the machine body. SOLUTION: The ladder 26 for inspection is received into the space alongside to the vertical feeder for the grain auger 7 in the rear of the grain tank 6 and is attached over the supporting frame 13 for supporting the vertical screw case 10B to the back face of the grain tank.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method for ascending the Glen tank once to clean the inside of the tank, or for replacing a filter of a pre-cleaner provided in front of the air cleaner. The present invention relates to a ladder mounting structure for upper inspection of a combine provided with a ladder used for a vehicle.

[0002]

2. Description of the Related Art As shown in FIG. 9, the above-mentioned ladder 26 is mounted on a side surface of an operation cabin 5 which is provided so as to cover an operation control section, so as to protrude from the side surface.

[0003]

The reason why the protruding portion is provided in this manner is that it is necessary to protrude a portion on which a foot is to be protruded from a side surface. There is a possibility that the wings will become large and come into contact with obstacles when mowing around.

[0004] An object of the present invention is to provide a ladder that can be mounted to the extent that the body width does not increase so as not to hinder surrounding mowing.

[0005]

(Structure) The invention according to claim 1 is located at the rear of the grain tank and at the lateral side of the vertical feed portion in the grain discharging device for discharging the grain from the grain tank. Place ladders in the space where
An attachment for attaching and fixing the ladder is provided in the vertical feed portion, and the operation and effect are as follows.

(Effects) Attention is paid to the fact that there is an empty space behind the Glen tank and on the side of the vertical feed portion, and by positioning the ladder in this empty space,
Ladder can be arranged without protruding from the Glen tank. In addition, since the ladder can be attached to the vertical feeding portion having a relatively strong structure, the ladder does not rattle when using the ladder and is easy to use.

(Structure) According to a second aspect of the present invention, in the first aspect of the present invention, a cover for covering the space is swingably opened and closed by the Glen tank, and a ladder attached to the attachment is provided. The end is swingably supported at a swing fulcrum position of the cover, and one end of the ladder removed from the attachment is configured to be detachable from a bracket provided on the cover, The operation and effect are as follows.

(Operation and Effect) By providing a cover, the ladder is positioned in the space so that it does not protrude to the side of the fuselage. Can be prevented from wrapping around and causing troubles, and the ladder can be prevented from being exposed, so that the appearance is good. The ladder provided for this purpose can also be attached to the cover, so when performing work on the Glen tank or vertical feed section, the ladder will behave well, and the ladder itself will interfere with the work Few.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 and 2, a traveling body 2 driven and driven by a crawler traveling device 1 is provided at a front end thereof.
The mowing pre-processing unit 3 is attached and configured to be able to move up and down, and the threshing device 4 is provided behind the vertical conveying device 3A of the mowing pre-processing unit 3; the driving cabin 5 is disposed laterally to the vertical conveying device 3A; The traveling body 2 is equipped with a grain tank 6 for storing the threshed grains on the lateral side of the threshing device 4 and a grain discharge device 7 for discharging the grains in the Glen tank 6 to the outside of the machine to form a combine. I do.

The grain carrying device 7 will be described. Figure 1
As shown in FIG. 3, a bottom screw conveyor 8 is provided at the bottom of the Glen tank 6, and a grain discharge device 7 that receives the grains from the bottom screw conveyor 8 and discharges the grains outside the machine is connected to the Glen tank 6. It is. Grain unloading device 7
Is constituted by a vertical feed screw conveyor 9 having a vertical posture as a vertical feed unit, and a horizontal feed screw conveyor 10 connected to the upper end of the vertical feed screw conveyor 9. The vertical feed screw conveyor 9 includes a vertical screw 11
The vertical feed screw case 12 includes an elbow portion 12A extending rearward from the lower rear end of the Glen tank 6 and an intermediate case portion connected to the upper side of the elbow portion 12A. 12B
And an upper case part 12C connected to the upper end of the intermediate case part 12B so as to be horizontally rotatable. The upper case part 12C is provided with a ring gear 12D, and as shown in FIG. 4, a pinion driven by a drive motor 14 attached to the intermediate case part 12B meshes with the ring gear 12D, so that not only the upper case part 12C but also The horizontal feed screw conveyer 10 is integrally and horizontally rotatable.

The pivot shaft 1 is directed downward from the elbow portion 12A.
2a is protruded, and is supported in a bearing boss 2a provided on a support 2A of the traveling body 2, and a connecting bracket 15 is extended from the intermediate case portion 12B to the Glen tank 6 to be connected and fixed. The upper end boss portion 13 of the support frame 13 in which the upper case portion 12C is erected from the support base 2A.
A is rotatably supported. With the above configuration,
The intermediate case portion 12B and the elbow portion 12A are integrated with the Glen tank 6 around the longitudinal axis Y from the pivot shaft portion 12a through the intermediate case portion 12B to the upper end case portion 12C, and are laterally outward of the traveling body 2. It is configured to be able to swing open. With such a configuration, the Glen tank 6 is pivotally moved laterally outward of the fuselage so that the Glen tank 6 and the threshing device 4 are moved.
The space between the two is wide open, so that maintenance work can be performed smoothly.

As shown in FIG. 3, the horizontal screw conveyor 10 includes a horizontal screw case 10B containing a horizontal screw 10A.
0B is connected to the upper case part 12C so as to be vertically swingable around the horizontal axis X, and is driven to be vertically rocked by an elevating cylinder 16 provided between the upper case part 12C and the lateral feed screw case 10B. It is configured to: With the above-described configuration, the horizontal feed screw conveyor 10 is configured to be horizontally rotatable and vertically swingable, so that the position of the grain discharge port 10a provided at the end of the horizontal feed screw conveyor 10 can be set to an arbitrary position. , And can be smoothly mounted on a transport truck or the like on a ridge from a field.

Next, the structure for increasing the amount of the Glen tank 6 will be described. As shown in FIG. 5, an intake port 6 a for taking in the grains from the grain transport screw conveyor 17 that transports the grains from the threshing apparatus 4 is formed on a side face facing the threshing apparatus 4 and faces the side face. An increasing structure is formed on the lateral outer surface 6A located on the lateral side of the fuselage on the side surface. That is, as shown in FIGS. 5 and 6, an extension case 1 that can swing open and close around a horizontal axis Z is provided on a part of the lateral outer surface.
8 and attach the extension case 18 to the outer plate 1
8A and front and rear plate portions 18B and 18C arranged before and after the outer plate portion 18A. A bendable plate portion is provided as a ceiling plate portion 18D of the extension case 18, and the ceiling plate portion 18D is provided with a bend at an intermediate position, and interlocked with the swing opening and closing operation of the extension case 18,
The ceiling plate 18 is bent when the extension case is stored, and is extended when the extension case 18 is opened.

A structure for driving the opening and closing operation of the extension case 18 will be described. As shown in FIGS. 5 and 6, the drive pinion 19 is rotatably supported in the Glen tank 6 above the extension case 18, and an engagement hole 18 a engaging with the drive pinion 19 is formed at the upper end edge of the extension case 18. An angled rack edge 18E is provided and configured. With such a structure, by driving the drive pinion 19, the rack edge 18E can be swingably driven integrally with the extension case 18. Then, the swing angle of the extension case 18, that is, the amount of protrusion of the extension case 18 in the laterally outward direction can be adjusted, and the extension amount corresponding to the necessary storage amount can be obtained.

The sealing structure between the extension case 18 and the Glen tank 6 will be described. As shown in FIG. 6, a cutout hole 6 b that allows the extension case 18 to enter and exit is formed in the lateral outer surface 6 </ b> A of the Glen tank 6, and the edge of the outer plate portion 18 </ b> A having the cutout hole 6 b is formed by bending inward. Furthermore,
An angled backing plate 20 is provided on the inside. A packing 21 is sandwiched between the bent edge of the outer plate 18A and the angled backing plate 20, and the inner end of the packing 21 is pressed against the front and rear plates 18B and 18C of the extension case 18 to form a seal structure. I have. Therefore, even when the extension case 18 swings, the packing 21 is moved by the front and rear plate portions 1.
It comes into contact with 8B and 18C and exerts a sealing function.

In the above configuration, the case where the extension case 18 is provided in the Glen tank 6 has been described.
The structure in the case where the outer plate portion 18A does not open and close and the capacity of the Glen tank 6 is constant will be described. As shown in FIG. 7, the front and rear plate portions 18B and 18C are provided inside the outer plate portion 18A.
In place of the above, a plate-shaped bracket 18b is attached and fixed, and one side of the angle-shaped connecting member 22 is sandwiched between the outer plate portion 18A and the backing plate 20 instead of the packing 21 and fixed with bolts. The other side of the connecting member 22 is brought into contact with the outer surface of the plate-shaped bracket 18b, and the other side of the connecting member 22 is connected to the plate-shaped bracket 18b with a bolt, so that the swinging of the outer plate 18A is performed. It has a configuration to regulate. With such a structure, even in the case of the Glen tank 6 having the extension case 18, the outer plate 18
Modification using a configuration in which the contact plate 20 is applied to the bent edge of A is possible, and there is an effect due to the dual use.

Next, the ladder 26 used at the time of maintenance will be described. As shown in FIG.
Is composed of a pair of left and right side frames 26A and a horizontal rail 26B bridged between the side frames, and a shaft 26a for rotatably supporting the ladder 26 is vertically fixed to one of the horizontal rails 26B. is there. On the other hand, brackets 23, 23 for receiving the ladder 26 are provided at upper and lower two places on the rear outer surface 6C of the Glen tank 6. The lower half of the shaft 26a is inserted into the front ends of the brackets 23, 23, and around the axis P of the shaft 26a, the ladder 26
Is formed so as to be horizontally swingable. Meanwhile, the support frame 1
3, a plate-like bracket 24 as a fixture is protruded from the peripheral surface of the upper end boss portion 13A, and a side frame 2 provided with a shaft 26a.
A side frame 26A located on the opposite side to 6A is sandwiched between the plate-like brackets 24 and is fixed by a pin 25 so as not to come off. With the above-described configuration, the ladder 26 can be disposed in the space a formed behind the Glen tank 6 and laterally outward of the vertical screw conveyor 9 of the grain discharge device, and projects laterally outward from the Glen tank 6. I will not do it. The maintenance work includes a work that enters the Glen tank 6 and a work that replaces the filter of the precleaner 29 provided in the operation cabin 5. The pre-cleaner 29 removes dust generated when cutting soybeans or the like before the air cleaner 30 sucks the dust.

As shown in FIGS. 2 and 8, a cover 27 for covering the space a by hiding the ladder 26 is provided.
7, a locking boss 27A is inserted into the upper half of the shaft 26a, and the cover 27 is swingably opened and closed around the axis P of the shaft 26a.
Is configured. Clamps 28 as brackets are provided on the back surface of the cover 27 at two upper and lower locations, and the ladder 26
The side frame 26A on the free end side is detached from the plate-like bracket 24 and received by the clamp 28.
In this way, by fixing the ladder 26 to the clamp 28, the ladder 26 is integrated with the cover 27 in a state where the ladder 26 is attached to the cover 27, and is configured to be swingably openable and closable around the axis P. The ladder 26 is attached to the cover 27 when the Glen tank 6 is horizontally rotated around the axis Y of the vertical transport screw conveyor 9.
The cover 6 and the cover 27 can be swingably moved together with the Glen tank 6.

[Other Embodiments] The present invention can also be carried out in the following modes. The mounting structure of the ladder 26 is supported by the vertical feed screw case 10B and the rear surface of the Glen tank 6, but may be supported by the vertical feed screw case 10B. The present invention can be applied to a model that does not include the driving cabin 5 as a combine. The vertical feed portion of the grain discharge device 7 includes the support frame 13 together with the vertical screw case 10.

[Brief description of the drawings]

FIG. 1 is an overall side view of a combine.

FIG. 2 is an overall plan view of the combine.

FIG. 3 is a side view showing a ladder mounting structure.

FIG. 4 is a plan view showing a turning drive motor of the horizontal screw conveyor.

FIG. 5 is a longitudinal sectional rear view showing a structure for increasing the amount of a Glen tank.

FIG. 6 is a cross-sectional plan view showing a swinging structure of an extension case in a structure for increasing the amount of a Glen tank.

FIG. 7 is a cross-sectional plan view showing a fixing structure of a lateral side plate in a structure having no increasing structure of a Glen tank.

FIG. 8 (a) A cross-sectional plan view showing a state in which a cover for a ladder is closed. (B) A cross-sectional plan view showing a state in which a ladder is attached to a cover and the cover is swingably opened and closed integrally with a Glen tank.

FIG. 9 is an overall side view of a combine showing a conventional ladder mounting position.

[Explanation of symbols]

 Reference Signs List 6 Glen tank 7 Grain unloading device 24 Fixture 26 Ladder 27 Cover 28 Bracket

Claims (2)

[Claims] 1. A ladder is disposed in a space located behind a grain tank and laterally of a vertical feed portion in a grain discharging device for discharging grains from the grain tank, and the ladder is attached and fixed. A ladder mounting structure for inspecting an upper portion of a combine provided in the vertical feed portion. 2. A cover for covering the space is swingably supported on the Glen tank, and the other end of a ladder attached to the fixture is swingably supported at a swing fulcrum position of the cover. The ladder mounting structure for upper inspection of a combine according to claim 1, wherein one end of the ladder removed from the mounting tool is configured to be detachable from a bracket provided on the cover.