JP2004269042A - Grain hopper - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a grain hopper, the whole machine height of which is not affected by the height of eaves, the height of a gate or the like, the capacity of which is increased by swilling the storing tank and the center of gravity of which is lower when a grain is stored. <P>SOLUTION: In the grain hopper, a storing tank 2 made of a sheet material is hanged on the frame of the machine and a driving means for discharging is installed on the bottom part of the storing tank, wherein the storing tank has a swelling part formed from an upper opening part opened upward toward a discharging opening part opened downward and has a movable frame 14 connected on almost intermediate point of the circumference side wall and is equipped with a compressed elastic material to push the movable frame upward. When the grain is stored in the storing tank, the compressed elastic material is compressed to form the swelling part and while the grain is discharged, the compressed elastic material elongates gradually to pull up the swelling part to assist the grain discharging. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a configuration in which a machine frame size of a grain hopper, which is mounted on a carrier of a traveling vehicle and conveys grains, is compact, increases a storage capacity, and improves conveyance efficiency.
[0002]
[Prior art]
2. Description of the Related Art As a conventional technique, there is known a grain hopper having a configuration in which a total height can be appropriately changed so as to be placed on a bed of a traveling vehicle and pass through a place with a limited height. (Patent Document 1)
[0003]
[Patent Document 1]
Registered Utility Model No. 3091534
[Problems to be solved by the invention]
According to the above prior art, a moving frame which can be moved up and down with respect to the main body frame to pass through a place with a height limitation is provided, and this moving frame is moved up and down and can be adjusted to an appropriate height by locking means. However, there is a problem that the moving frame has to be adjusted according to the height of the eaves of a working hut having a drying facility or a storage, the height of a gate of a farmhouse, and the like.
[0005]
In addition, the storage tank must be provided with an inclination angle so that the stored grain slides down toward the discharge port, and becomes a space in which almost half of the main body frame is not stored. There is also a problem that the transport efficiency is deteriorated because the storage amount is reduced.
[0006]
Therefore, the present invention provides a grain hopper that constitutes the entire body height that is not affected by the eave height, gate height, and the like, expands the storage tank to improve the storage capacity, and further lowers the center of gravity during grain storage. The purpose is to:
[0007]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, a support frame is erected at each of the four corners of a base frame that is framed in a rectangular shape in a plan view, and a support frame is laid horizontally between upper ends of the support frame. In a grain hopper having a storage tank made of wood suspended by the support frame and having a discharge driving means at the bottom of the storage tank, the storage tank has a discharge opening that opens downward from an upper opening that opens upward. Along with forming a bulging portion toward the opening, a movable frame is connected to a substantially halfway portion of the outer peripheral side surface, and a compression elastic body that urges the movable frame upward is provided, and when grains are stored in the storage tank, The compression elastic body is configured to compress to form a bulge in the storage tank and discharge the grain, and the compressive elastic body is gradually expanded to raise the bulge and assist in discharging the grain. Capacity without changing overall height Succoth can, and it is possible to lower the center of gravity at the time of grain storage, and good running balance during transportation.
[0008]
Further, the movable frame is slidable in the vertical direction with respect to the support frame, and the movable frame is urged upward by a compression elastic body, thereby pulling up the bulging portion with a simple configuration and storing the grain stored in the storage hopper. In particular, it is possible to assist the discharge of the grains accumulated in the bulging portion.
[0009]
Also, by using a gas spring for the compression elastic body, the number of parts can be reduced, and the cost can be reduced.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 is a side sectional view of a grain hopper embodying the present invention, FIG. 2 is a perspective view of a grain hopper, FIG. 3 is a perspective view of a storage tank, FIG. 4 is a perspective view showing a movable frame, and FIG. It is a perspective view which shows the effect | action of.
[0011]
In FIGS. 1 and 2, A denotes a grain hopper that can be placed on a carrier of a traveling vehicle, stores grain harvested in a field, and transports the grain to a drying facility or a storage. The grain hopper A has a machine frame 1 framed in a rectangular parallelepiped shape by a pipe material having a rectangular cross section, and an upper opening connected to the upper surface of the machine frame 1 to form an upper opening. The storage tank 2 made of the sheet material and the discharge driving means 3 connected to the discharge opening opened below the storage tank 2 and discharging the grains stored in the storage tank 2 are provided inside the frame of the machine frame body 1. It is arranged and configured at the bottom.
[0012]
The machine frame 1 is framed in a rectangular shape in a plan view, and has a base frame 11 having vertical frames 11a suspended at four corners, a support frame 12 fitted into the vertical frame 11a and standing upright, and an upper end of the support frame 12 The movable frame 14 is composed of a support frame 13 suspended between the sections and suspending the storage tank 2, and a movable frame 14 slidable in the vertical direction with respect to the support frame 12. It is urged to form a sliding part.
[0013]
The sliding portion of the movable frame 14 will be described with reference to FIGS. The movable frame 14 is fitted to the outer periphery of the column frame 12 erected at the four corners and is slidable in the vertical direction, and a movable vertical frame 14a is detachably mounted between the movable vertical frames 14a. The support frame 14b is formed in a rectangular shape in a plan view, and is slidable up and down with respect to the support frame 12 erected at four corners.
[0014]
The compression elastic body is disposed parallel to the support frame 12, and is connected to the support frame 12 at one end and the movable frame 14 at the other end, and is provided at each of the four corners. A gas spring G is used for the compression elastic body. The gas spring G encloses a high-pressure gas in the gas chamber G1 and imparts a repulsive force to the piston lot G2 in the extending direction. The gas spring G has a simple structure that is only installed on the support frame 12 and the movable frame 14, and has a movable frame. 14 can be biased upward.
[0015]
The storage tank 2 is a container for storing harvested grains, and is formed by sewing flexible sheet materials. As shown in FIG. 3, an insertion tube 21 through which the support frame 13 is inserted is provided at an edge of the upper opening a, and a plurality of connection strings 22 for connecting to the movable frame 14 are provided at an intermediate portion of the outer peripheral side surface. It is. A bulging portion C is formed on the outer peripheral side of the storage tank 2 toward the discharge opening b that opens from the upper opening a to the bottom. By forming the bulging portion in this way, the capacity of the storage tank 2 can be increased.
[0016]
Then, the support frame 13 of the machine frame 1 is inserted into the insertion tube 21 provided at the edge of the upper opening a, and is connected to the movable frame 14 which can be tied by the connecting string 22 provided in the middle of the outer peripheral side surface. The storage tank 2 is suspended inside the machine frame 1 and the bulging portion c of the storage tank 2 is pulled upward by the movable frame 14 urged upward by the gas spring G, and is stored as shown in FIG. The tank 2 forms a slack portion toward the inside of the storage tank 2 between the hanging portion of the support frame 13 and the connecting portion of the movable frame 14. Then, an inclined surface of a substantially inverted quadrangular pyramid is formed from the connecting portion of the movable frame 14 to the connecting portion with the discharge driving means 3 as shown in FIG.
[0017]
The discharge drive means 3 is disposed on the base frame 11 and has a discharge box 31 having an opening at an upper portion for connecting a discharge opening b opened at the bottom of the storage tank 2, and the discharge box 31. A shutter 32 that is slidable in the longitudinal direction of the machine frame to open and close the discharge opening b at a connection portion of the storage tank 2 with the discharge opening b, and a discharge opening that is opened on a rear surface of the discharge box 31 in the longitudinal direction. A transfer hose 33 that is detachably attached to and extends rearward, and a discharge drive motor 34 that drives the transfer hose 33 are provided on the front side surface of the discharge box 31 facing the mounting portion of the transfer hose 33.
[0018]
The transfer hose 33 is provided with a mounting portion 33a for mounting to the discharge box 31, a hose 33b appropriately lengthened backward from the mounting portion 33a, and a spring-type conveyor 33c rotatably provided inside the hose 33b. When the mounting portion 33a is mounted on the discharge box 31, the base end of the spring type conveyor 33c is engaged with the discharge drive motor 34 and is driven to rotate. The grains stored in the storage tank 2 fall into the discharge box 31 by opening the shutter 32, move to the other end side in the hose 33b by the rotationally driven spring type conveyor 33c, and are provided at the other end. Is discharged from the hose discharge port 33d.
[0019]
Hereinafter, the operation of the movable frame will be described with reference to FIGS. The grain M collected by the combine in the field is thrown into the upper opening a of the storage tank 2 of the grain hopper A placed on the carrier of the traveling vehicle. When the grain M is stored, the storage tank 2 gradually expands an inclined surface formed from the connection portion with the movable frame 14 toward the connection portion with the discharge driving means 3 by the weight of the grain M, and at the same time, supports the column. The gas spring G, which is a compression elastic body, provided between the frame 12 and the movable frame 14 is contracted in the compression direction, that is, the movable frame 14 is slid downward. Further, by storing the grains M, the gas spring G is in the most contracted state as shown in FIG. 5, and the grains M are stored to fill the bulging portion c of the storage tank 2.
[0020]
With this configuration, it is possible to increase the capacity of the storage tank 2 expanded without changing the overall height of the body of the grain hopper A, and to lower the center of gravity during grain storage. The running balance is also good.
[0021]
Then, the grain M transported from the field to the drying facility or storage by the traveling vehicle is discharged to the drying facility or storage by the discharge driving means 3 and gradually reduces the amount of the grain M stored in the storage tank 2. Decrease. As the amount of storage in the storage tank 2 decreases, the gas spring G starts to extend and slides the movable frame 14 upward. The movable frame that slides upward moves the connecting portion connected by the connecting cord 22 provided on the storage tank 2 upward, gradually pulls up the bulging portion c, and connects the movable frame 14 to the storage tank 2 again. , An inclined surface of a substantially inverted quadrangular pyramid is formed toward a connecting portion with the discharge driving means 3.
[0022]
With this configuration, it is possible to assist the discharge of the grains M accumulated in the bulging portion c, and the discharging operation is performed smoothly.
[0023]
【The invention's effect】
By forming a bulging portion in the storage tank, it is possible to increase the storage amount, and it can be configured with the entire height of the machine which is not affected by eave height, gate height, etc., and lowers the center of gravity when storing grain. It can improve the running balance during transportation. In addition, since the bulging portion is pulled up to assist in discharging the grain accumulated in the bulging portion, the discharging operation can be performed smoothly.
[0024]
The movable frame for raising the bulging portion is vertically slidable with respect to the support frame, and is urged upward by the compression elastic body, so that the movable frame can be urged upward with a simple configuration. Since the movable frame is urged upward by using a gas spring as the compression elastic body, the number of parts can be reduced, and the cost can be reduced.
[Brief description of the drawings]
FIG. 1 is a side sectional view of a grain hopper. FIG. 2 is a perspective view of a grain hopper. FIG. 3 is a perspective view of a storage tank. FIG. 4 is a perspective view showing a movable frame. FIG. Perspective view [Description of symbols]
DESCRIPTION OF SYMBOLS 1 Machine frame 11 Base frame 11a Vertical frame 12 Support frame 13 Support frame 14 Movable frame 14a Movable vertical frame 14b Movable support frame 2 Storage tank 21 Insertion cylinder 22 Connecting string 3 Discharge driving means 31 Discharge box 32 Shutter 33 Transfer hose 33a Mounting Part 33b hose 33c spring type conveyor 33d hose discharge port 34 discharge drive motor

Claims (3)

A support frame is erected at each of the four corners of a base frame that is framed in a rectangular shape in a plan view, and the storage tank made of a sheet material is supported on a machine frame configured by bridging a support frame between upper end portions of the support frame. In the grain hopper suspended by a frame and provided with a discharge driving means at the bottom of the storage tank, the storage tank has a bulging portion directed toward a discharge opening that opens downward from an upper opening that opens upward. While forming, a movable frame is connected to a substantially halfway portion of the outer peripheral side surface, a compression elastic body is provided to urge the movable frame upward, and when grains are stored in the storage tank, the compression elastic body is compressed. A grain hopper, wherein a bulging portion is formed in a storage tank to discharge grains, and the compression elastic body gradually expands to raise the bulging portion to assist in discharging the grain. 2. The grain hopper according to claim 1, wherein the movable frame is slidable vertically with respect to the support frame, and the movable frame is urged upward by a compression elastic body. 3. The grain hopper according to claim 1, wherein a gas spring is used as the compression elastic body.

Images