JP4384880B2 - Grain hopper - Google Patents

Description

  The present invention relates to a configuration for improving the discharge efficiency of a grain hopper that is placed on a loading platform of a traveling vehicle and transports the grain.

Inside the support frame framed in a cubic shape, hold the upper opening edge of the bag-shaped cereal container made of flexible material, suspend the cereal container, and store the cereal stored in it at the lower part of the cereal container A drainage unit is provided, and the cereal container is wrapped with a rubber string around the outer periphery near the upper opening edge and attached with a mounting ring. Gradually squeeze the container bag shape inward, and the cereal is drained so as to slide off the cereal container without staying in the middle of discharging. There is known a grain hopper capable of effectively discharging cereals without staying in the middle of discharging. (Patent Document 1)
JP 2000-191084 A

  As in the prior art, in a configuration in which a rubber string is wound around the outer periphery of the cereal container, the cereal container cannot be narrowed down due to the deterioration of the rubber string, and the discharge efficiency may be reduced.

  Then, an object of this invention is to provide the grain hopper which is excellent in durability and can discharge | emit efficiently.

In order to solve the above problems, a storage tank having a substantially inverted quadrangular pyramid shape made of a flexible material is hung inside a machine frame framed in a rectangular parallelepiped shape, and a discharge driving means is provided at the bottom of the storage tank. In the provided grain hopper, the storage tank is squeezed to the center side of the machine frame using a rope wound on the opposite side of the outer wall 2 of the storage tank, and an inclined surface having a grain repose angle or more is formed on the inner wall of the storage tank. The discharge assisting means includes a pair of left and right ropes having one end side wound around the opposing outer wall of the storage tank, and the other end side of the rope is connected to the machine frame. A link body slidably connected to the rope and a compression elastic body connected to the link body, and the pair of left and right ropes always narrows the storage tank. Link body in the direction We propose a grain hopper was characterized by being elastically held by condensation elastic body.

  The grain hopper configured as described above has a simple configuration in which the discharge assisting means simply narrows the side surfaces of the opposing outer wall 2 of the storage tank, and forms an inclined surface that is greater than the repose angle of the grain on the inner wall of the storage tank. Therefore, the grain discharge efficiency is improved. Further, since no rubber cord is used for the discharge assisting means, it has excellent durability and can be discharged efficiently.

  Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings. 1 is a perspective view of a grain hopper according to the present invention as a partial cross-section, FIG. 2 is a side view of a grain hopper as a partial cross-section, FIG. 3 is an operation diagram of the discharge assisting means, and FIG. It is a side view at the time of storage.

  1 and 2, A is a grain hopper, a machine frame 1 framed in a rectangular parallelepiped shape with a pipe material having a square cross section, and an upper opening a connected to the upper surface of the machine frame 1, A storage tank 2 made of a flexible material suspended inward, and disposed at the approximate center in the lower part of the frame of the machine frame 1, and connected to a discharge opening b opened below the storage tank 2. It is comprised from the discharge drive means 3 which discharges | emits the grain stored in the tank 2, and the discharge auxiliary means 4 which assists discharge | emission of the grain arrange | positioned in the frame front of the machine frame 1 and stored in the storage tank 2. FIG.

  A grain hopper A having a rectangular parallelepiped box shape is placed so that the discharge part of the discharge driving means 3 faces the rear part of the loading platform of the traveling vehicle, stores the grains harvested in the field, It is transported to the storage. The grain hopper A has a side surface facing the discharge part of the discharge driving means 3 as a rear surface, a side surface facing the rear surface as a front surface, and a side surface in a longitudinal direction connecting opposite sides of the front surface and the rear surface as a right side surface and a left side surface. A surface.

  The machine frame 1 is framed in a rectangular shape in plan view, a base frame 11 having vertical frames 11a suspended at four corners, a support frame 12 fitted into the vertical frame 11a, and an upper end of the support frame 12 It is comprised from the support frame 13 horizontally suspended in between and the holding tank 2 is suspended.

  The storage tank 2 is a container for storing harvested grains, and is formed into a substantially inverted quadrangular pyramid shape by stitching flexible sheet materials. There is an upper opening a in the upper part, and an insertion tube 21 through which the support frame 13 is inserted at the edge of the upper opening a, and a mounting loop 22 in the middle part of the four ridges going downward. Are sewn.

  The storage tank 2 is suspended inward of the machine frame 1 by inserting the support frame 13 of the machine frame 1 through the insertion cylinder 21 provided at the edge of the upper opening a.

  The discharge driving means 3 is disposed on the base frame 11 and has a discharge box 31 having an opening on the upper surface for connecting a discharge opening b opened at the bottom of the storage tank 2, and the discharge box 31 and the storage A shutter 32 that is slidable in the longitudinal direction of the machine frame 1 to open and close the discharge opening b and a discharge opening that opens on the rear surface in the longitudinal direction of the discharge box 31 is attached to and detached from the connecting portion of the tank 2 with the discharge opening b. A transport hose 33 that freely extends rearward and a discharge drive motor 34 that drives the transport hose 33 are provided on the front side surface of the discharge box 31 that faces the mounting portion of the transport hose 33.

  The transport hose 33 is provided with a mounting bracket 33a for mounting on the discharge box 31, a hose 33b having an appropriate length behind the mounting bracket 33a, and a spring-shaped conveyor 33c rotatably inside the hose 33b. When the mounting bracket 33a is engaged with the discharge port of the discharge box 31, the base end portion of the spring conveyor 33c inserted into the discharge box 31 engages with the discharge drive motor 34 and is driven to rotate. The grain stored in the storage tank 2 falls into the discharge box 31 by opening the shutter 32, and moves to the other end side in the hose 33b by the rotationally driven spring-shaped conveyor 33c. It is discharged from the hose discharge port 33d provided in.

  The discharge assisting means 4 is slidably brought into contact with the pair of left and right ropes 41L and 41R, one end of which is wound around the storage tank 2 and the other end connected to the machine casing 1, and the ropes 41L and 41R. The link body 42 is configured to be composed of a compression elastic body that elastically holds the link body.

  The pair of left and right ropes 41L and 41R are fixed to attachment loops 22 and 22 provided at one end on the front side of the right side and the left side of the outer wall 2 on the left side in the longitudinal direction of the storage tank 2, respectively. The other end is inserted through attachment loops 22 and 22 provided on the rear side of the same outer wall 2 side surface in the longitudinal direction so as to be slidable, and is turned back toward the front side again to form the machine frame 1 on the front side. It is connected to the connecting bracket 11b that is suspended.

  The link body 42 includes a contact hook 42La that is pivotally supported by a left support bracket 11L projecting obliquely rearward from the front left side of the base frame 11 of the machine frame 1 and is in contact with the rope 41L. A left turn arm 42L and a contact hook 42Ra that is pivotally supported by a right support bracket 11R that protrudes obliquely rearward from the front right side of the base frame 11 of the machine frame 1 and abuts against the rope 41R. The right rotation arm 42R is provided, and the connecting arm 42a connects the left rotation arm 42L and the right rotation arm 42R.

  A gas spring 43 is used as the compression elastic body, and is erected on the base frame 11 of the machine frame 1 and the right rotation arm 42R of the link body 42, and the left rotation arm 42L and the right rotation arm of the link body 42. It expands and contracts in conjunction with the turning motion of 42R. The gas spring 43 is composed of a gas chamber 43a and a piston lot 43b. A high pressure gas is sealed inside the gas chamber 43a and the piston lot 43b has a repulsive force in the extending direction. The left turning arm 42L and the right turning arm 42R are always elastically held outward.

  The discharge assisting means 4 configured in this manner elastically holds the left turning arm 42L and the right turning arm 42R of the link body 42 outward by the repulsive force, that is, the elastic force of the gas spring 43, which is a compression elastic body. The receiving tank 2 is squeezed toward the center of the machine frame 1 in the longitudinal side view by applying tension to the abutting ropes 41L, 41R in the longitudinal direction of the receiving tank 2 in the opposite right side surface and left side outer wall 2 side surface. An inclined surface that is larger than the angle of repose of the grain is formed on the inner wall.

  Hereinafter, the operation of the discharge assisting means 4 will be described. The grain harvested by the combine in the field is thrown in from the upper opening a of the storage tank 2 of the grain hopper A placed on the loading platform of the traveling vehicle. When grains are stored in the storage tank 2, a bulging portion is gradually formed toward the connecting portion with the discharge driving means 3 by the weight of the grains. At this time, as shown in FIG. 3 (a), the attachment loop 22 provided in the middle part of the four ridges facing the lower side of the storage tank 2 in conjunction with the bulging of the storage tank 2 is the right side surface in the longitudinal direction. The ropes 41L and 41R of the discharge assisting means 4 that are spaced apart from the mounting loops 22 and 22 on the side of the outer wall 2 on the left side and are inserted and wound through the mounting loop 22 are pulled backward while sliding, and are in contact with each other. The left turning arm 42L and the right turning arm 42R of the body 42 are turned inward to compress the gas spring 43, which is a compression elastic body. The storage tank 2 forms a bulging portion as shown in FIG.

  By comprising in this way, the capacity | capacitance for the amount which expanded the storage tank 2 can be increased without changing the machine body total height of the grain hopper A, and the gravity center at the time of grain storage can be made low. Therefore, the running balance is also good.

  And at the time of grain discharge, the grain conveyed to the drying facility and storage by the traveling vehicle from the field is discharged to the drying facility and storage by the discharge drive means 3, and the grain stored in the storage tank 2 is Gradually reduced. As the grain in the storage tank 2 decreases, the gas spring 43 of the discharge assisting means 4 starts to extend as shown in FIG. The ropes 41L and 41R that contact the contact hooks 42La and 42Ra are gradually pulled forward while sliding the mounting loop 22 provided in the storage tank 2 by rotating the arm 42R outward, and the right side in the longitudinal direction. The slope of the repose angle of the grain or more is formed on the inner wall of the storage tank 2 by gradually approaching the distance between the mounting loops 22 and 22 on the side surface of the outer wall 2 on the left side and the left side.

  By comprising in this way, the right side surface and left side surface which become the longitudinal direction of the storage tank 2 are narrowed down, and wrinkles are not formed in the front surface and the rear surface of the storage tank 2, and the inner wall of the storage tank 2 is more than the repose angle of the grain. The inclined surface is formed, and the discharge of the stored grain can be assisted, and the discharge operation is performed smoothly.

Perspective view Side view Action diagram of discharge assist means Side view during grain storage

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Machine frame 11 Base frame 11a Vertical frame 11b Connection bracket 11L Left side support bracket 11R Right side support bracket 12 Strut frame 13 Support frame 2 Storage tank 21 Insertion cylinder 22 Discharge drive means 31 Discharge box 32 Shutter 33 Conveyance hose 33a Mounting bracket 33b Hose 33c Spring-shaped conveyor 33d Hose discharge port 34 Discharge drive motor 4 Discharge auxiliary means 41L, 41R Rope 42 Link body 42a Connection arm 42L Left rotation arm 42R Right rotation arm 43 Gas spring A Grain hopper

Claims (1)

In the grain hopper provided with a storage tank having a substantially inverted quadrangular pyramid shape made of a flexible material suspended inside a machine frame that is framed in a rectangular parallelepiped shape, and having a discharge driving means at the bottom of the storage tank, Using a rope wound on the opposite side of the outer wall 2 of the storage tank, the storage tank is squeezed to the center side of the machine frame, and provided with discharge assisting means for forming an inclined surface that is greater than the angle of repose of the grain on the inner wall of the storage tank,
The discharge assisting means includes a pair of left and right ropes, one end of which is wound around the opposing outer wall of the storage tank, and the other end of each of the ropes connected to the machine frame so as to be rotatable on the machine frame side. A link body slidably connected to the rope, and a compression elastic body connected to the link body, and the pair of left and right ropes are respectively compressed with the link body in a direction to narrow the storage tank. A grain hopper characterized by being elastically held by an elastic body .

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