JPH0723262U - Grain sampling device - Google Patents

Abstract

(57) [Abstract] [Purpose] Grain sampling from the grain layer accumulated in the grain hopper 10 of the grain carrier 1 is performed by changing the composition of the collected sample to the grain in the grain hopper 10. It is possible to effectively suppress the operation of selecting and suctioning pomegranate / straw scraps that cause the composition of the sample to change without causing a difference to the overall composition of the sample, and improve the suction and collection ability. To do so. Constitution: A sampling pipe 3 that can be lifted and lowered by an elevating device 2 is formed in a shape with a bottom that serves as an opening 3a whose lower end opens downward, and the lower end side is formed on the outer periphery of the pipe 3. An outer cylindrical air supply pipe 4 is provided so as to enclose the space from the intake port 32 to the upper end side, and the upper end side of the cylinder wall of the air supply pipe 4 is located above the level of the grain layer at the time of sampling. A communication port 40 that communicates with the outside air is opened in the site.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is a voluntary inspection of grains at a grain facility when the grains harvested by a harvester such as a combine harvester are carried by a grain transport vehicle to a grain processing facility such as a rice center or a country elevator. Regarding the improvement of the sampling device used for.

[0002]

[Prior art]

 In the grain facility, the means for sampling the grains for the self-inspection of the grains brought in has been previously known as shown in FIG. 1, as shown in FIG. A cylinder in which an operating member 20 composed of a piston is moved in and out of a cylinder 21 by air or hydraulic pressure in the ceiling of the building of the facility where the grain carrier 1 loaded and transported in An elevating device 2 such as a device is mounted, and a hollow needle-shaped sampling pipe 3 made of a metal pipe is connected to the lower end side of an operating member 20 of the device, and its cylindrical wall is connected. An intake port 32 that opens in the radial direction is opened at a portion of the lower end side of the tube 30 that is slightly elevated from the sharp end 31 of the lower end, and a branch pipe that projects in a branched shape is provided on the upper end side of the tubular wall 30. 33 connected to the outside of the branch pipe 33 The side is connected to a sample bottle arranged at an appropriate position in the building through a communication pipe 34, and the sample bottle is connected to a suction port of a suction blower installed at an appropriate position. It is configured by communicating through a pipe.

As a result, when the grain transport vehicle 1 is loaded, the elevating device 2 is operated, and the sampling pipe 3 connected to the lower end of the operating member 20 is moved to the grain transport vehicle 1. The suction blower is activated when the lower end of the sampling pipe 3 reaches a predetermined depth by piercing into the piled layer of the grain G in the grain hopper 10 mounted on the loading platform of As a result, the suction air sucks the grains G ... into the sampling pipe 3 from the intake ports 32 ... Opened at the lower end of the cylinder wall 30 of the sampling pipe 3, Along with this, it is collected in a sample bottle.

[0004]

[Problems to be solved by the device]

 The sampling means using the above-mentioned sampling pipe 3 is such that when grains are sucked from the intake port 32 of the sampling pipe 3, rice gruel and fine straw debris having a low specific gravity rides on the suction wind, There is a problem that the composition of the sampled sample becomes different from the entire composition of the grain in the grain hopper 10 by being sucked first.

Further, the grain to be sampled is limited to the grain in the grain hopper 10 which is located at the depth position facing the intake port 32 of the sampling pipe 3. , When the properties of the grains accumulated in the grain hopper 10 are different between the grains in the surface layer, the grains in the middle layer, and the grains in the lower layer, the composition of the sampled sample has many errors. There is a problem to be dealt with.

Further, since the sampling operation is performed by sucking the air in the grain layer from the suction ports 32 of the sampling pipe 3 pierced into the grain layer, the suction ability is poor and the suction and collection ability is poor. Also has a low problem.

[0007]

【Purpose】

 The present invention has been made in order to solve the above-mentioned problems that have occurred in the conventional means, and the sampling of grains from the grain layer accumulated in the grain hopper 10 of the grain carrier 1 is performed. The operation of sucking the pomegranate / straw debris that does not cause a difference in the composition of the collected sample with respect to the entire composition of the grain in the grain hopper 10 and that deviates the composition of the sample. It is an object of the present invention to provide a new means for effectively suppressing the above-mentioned problem and improving the suction and collection ability.

[0008]

[Means for Solving the Problems]

 In the present invention, as a means for achieving the above object, an intake port is provided on the lower end side of the cylinder wall, and the upper end side is connected to the suction port of the suction blower through a communication pipe, and the lifting device moves up and down. The freely installed sampling pipe is formed in a shape with a bottom that becomes an opening whose lower end opens downward, and wraps around the pipe from the lower intake port to the upper end. An external cylinder-shaped air supply pipe is installed, and the outside air is placed on the upper end side of the cylinder wall of the air supply pipe, above the grain level when the sampling pipe is pierced into the grain accumulation layer. It proposes a grain sampling device that has a communication port that connects to.

[0009]

【Example】

 Next, embodiments will be described in detail with reference to the drawings. The same reference numerals are used for the constituent members having the same effects as those of the conventional means.

FIG. 3 is a longitudinal side view of a main part of the grain sampling apparatus A according to the present invention in a use state. In FIG. Grain hoppers mounted on the bed of the grain carrier 1, G ... Grains accumulated and loaded in the grain hopper 10, 20 is a lifting device 2 including a cylinder device for moving the sampling device A up and down. An operating member, 3 is a sampling pipe of the sampling device A pierced in the accumulation layer of the grains G in the grain hopper 10, and 4 is an air supply pipe provided on the outer periphery of the sampling pipe 3 in an outer cylinder shape.

The sampling device A is mounted on the ceiling part of the building so that the sampling pipe 3 can be moved up and down with respect to the grain hopper 10 of the grain carrier 1 that comes into the building of the grain processing facility. The lower end side of the operating member 20 of the lifting device 2 is connected and supported to the lower end side, and the outer end side of the branch pipe 33, which is branched and connected to the upper end side of the cylindrical wall 30 of the sampling pipe 3, is connected to a predetermined location in the building. It is connected to the suction port of the suction blower installed in the via the communication pipe 34, and a sample bottle is connected in the middle of the communication pipe 34. The suction and sampling of the grains by the air sucked from the intake ports 32 ... Opened at the lower end of the cylinder wall 30 is the same as the conventional means.

However, as shown in FIG. 3, the sampling pipe 3 pierced into the grain layer of the grain hopper 10 by the operation of the elevating device 2 is opened downward at the lower end with the diameter of the cylinder wall 30. The opening 3a is formed so that the bottom of the opening 3a is cut out. By this, the sampling pipe 3 is pierced into the grain layer of the grain hopper 10 by the operation of the cylinder device 2, and the opening 3a at the lower end is formed. Is brought into contact with the upper surface of the floor plate 110 of the grain hopper 10 to be closed, so that the grains located in the sampling pipe 3 are cut off from the grains in the grain hopper 10. It is designed to be isolated from

Further, the sampling pipe 3 is completely covered at its outer circumference with a range extending from a position lower than the intake port 32 opened on the lower end side to an upper end portion to which the branched branch pipe 33 is connected. An outer cylinder-shaped air supply pipe 4 to be inserted is provided, and the sampling pipe 3 is provided at the upper end side of the cylinder wall until the lower end of the sampling pipe 3 comes into contact with the floor plate 110 of the grain hopper 10. In the state of being inserted into the grain layer in the hopper 10, a communication port 40 communicating with the outside air is opened at a site located above the level of the grain layer.

Thus, in the state shown in FIG. 3, when the suction blower is operated to suck and collect the grains G in the sampling pipe 3, outside air above the level of the grain layer is supplied to the air supply pipe. 4 is taken into the inside of the sampling pipe 3, flows into the sampling pipe 3 through the intake port 32 ... Opened at the lower end side of the cylindrical wall 30 of the sampling pipe 3, and is sucked into the suction blower from there, and by this suction wind. The grains in the sampling pipe 3 are carried out and collected by suction.

From this, when the suction blower is operated and the grains accumulated in the grain hopper 10 are sampled by suction sampling, the suction port 32 of the sampling pipe 3 has a lightly specific gravity. A state in which the flow of fine straw debris is effectively prevented by the air supply pipe 4 that communicates with the outside air by blocking the intake ports 32 ... With respect to the grain layer in the grain hopper 10. As a result, only the grain cut in the sampling pipe 3 so as to vertically penetrate the grain layer in the grain hopper 10 is removed by the outside air above the level of the grain layer introduced by the air supply pipe 4. By collecting by suction, the composition of the collected grains does not differ from the composition of all grains in the grain hopper 10.

Further, the air introduced to the intake port 32 of the sampling pipe 3 does not pass through the gaps between the grains of the grain in the grain hopper 10 and is guided straight by the air supply pipe 4 so as to be sucked and collected. Will also improve their abilities.

[0017]

[Effect of device]

 As described above, the grain sampling apparatus according to the present invention uses the sampling pipe 3 with the bottom removed from the sediment layer of the grain in the grain hopper 10 to the cross-sectional area of the sampling pipe 3 from the surface layer to the lower layer. The whole length of the grain up to the point is divided so as to be cut out from the grain in the grain hopper 10, and the grain isolated in the sampling pipe 3 is fed to the grain by the outer cylindrical air supply pipe 4. Since the sample is collected by suction by the outside air that is directed to the sedimentary layer of the grain in the hopper 10 by suction, the composition of the sampled sample should be the same as the composition of the whole grain in the grain hopper 10. It becomes possible to match them with each other more closely, and the suction sampling ability is improved.

[Brief description of drawings]

FIG. 1 is a schematic diagram of a sampling device for brought-in grains in a grain processing facility.

FIG. 2 is a vertical sectional front view of a main part of a conventional grain sampling device.

FIG. 3 is a vertical sectional front view of a grain sampling apparatus according to the present invention.

[Explanation of symbols]

A: sampling device, G: grain, 1 ... grain carrier, 1
0 ... Grain hopper, 110 ... Floorboard, 2 ... Lifting device, 20
... Operating member, 21 ... Cylinder, 3 ... Sampling pipe, 3a ... Opening port, 30 ... Cylindrical wall, 31 ... Sharp part, 32 ...
Intake port, 33 ... Branch pipe, 34 ... Communication pipe, 4 ... Air supply pipe,
40 ... Communication port.

Claims (1)

[Scope of utility model registration request] 1. A sampling pipe 3 which is provided with an intake port 32 at the lower end side of a cylinder wall 30 and has its upper end side communicated with the suction port of a suction blower through a communication pipe 34, and which is mounted vertically by a lifting device 2. , An outer tube-shaped feed which is formed in a shape with a bottom that forms an opening 3a whose lower end opens downward, and which wraps around the outer periphery of the pipe 3 from the inlet 32 on the lower end to the upper end. The air supply pipe 4 is installed and the air supply pipe 4 is installed.
Sampling of grains by opening a communication port 40 that communicates with the outside air at a position located above the level of the grain when the sampling pipe 3 is pierced into the sediment layer of the grain on the upper end side of the cylinder wall of apparatus.