JPH0345167Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

The present invention mainly relates to a test device for quantitatively measuring the shedding property of grains such as rice and wheat as tensile force.

[Conventional technology]

For example, when harvesting paddy rice, it is important to minimize the head loss with a reaper, and the head loss and threshing sorting loss with a threshing machine or combine, and these losses are due to the performance of the harvesting machine itself. Of course, it is influenced by the shedding characteristics of the paddy rice variety. The shedding characteristics vary widely among Japanese-type rice, Indian-type rice, Japanese-India hybrid rice, etc., and can be measured by various methods, ranging from the method of grasping the ears by hand to see the degree of separation of the paddy, to the vibrating method,
Many studies have been conducted on various types of shedding testers, such as roll type, self-removal type, and impact type.

[Problem that the invention attempts to solve]

However, the above-mentioned shedding test methods and test machines have many problems, such as not being able to be applied effectively to all varieties, large variations in measured values, and difficulty in handling in the field. At present, no method has been established.

[Means to solve the problem]

Therefore, the present invention aims to provide a shedding property test device for quantitatively understanding the shedding property of various types of grains such as paddy rice, and determining the difficulty of shedding property. When classifying the phenomena in which paddy is separated from the stems due to the impact force at the header of the harvester, impact force within the threshing section, or frictional force, as shown in Figure 11, (a) is simple. (b) is when paddy A is separated from twig stalk B by a vertical tensile force; (c) is when paddy A is separated from twig stalk B by vertical tensile force; (c) is the above ( It is the same idea as b), but when the vertical tension direction is different, (d) is separated by horizontal tension force as in (a) above, but if it is accompanied by torsional force, it can be roughly divided into . Of course, in addition to the four types mentioned above, each type of force is also combined with each other to perform threshing, and can be simply classified into the four types mentioned above. The separation power differs depending on the variety,
We focused on the fact that the magnitude of this force has a strong correlation with grain shedding ability, and decided to quantitatively measure this. To this end, the present invention includes a pair of holding mechanisms facing each other with a predetermined interval, a tensile force measuring device and a tensioning mechanism provided on either one of the holding mechanisms, and one of the holding mechanisms. Hold the grain on one side and the stem culm side on the other, pull it with a tension mechanism to shed the grain, and measure the separation force of the grain in one direction or in multiple directions using a tensile force measuring device. It is characterized by the following.

[Effect]

By using this device, it is possible to measure the shedding properties of all kinds of products, obtain accurate measured values, and it is easily portable and the measurement operation is simple and easy.

【Example】

Embodiments of the present invention will be described below with reference to the drawings. In Figures 1 to 3, reference numeral 1 denotes a pedestal of a slender-shaped shedding test device, and on one side of the pedestal 1 in the length direction, a tension gauge 2 and an indicator type display part 3 are installed. The tension gauge support frame 4 is supported by a gauge support frame 4, and the tension gauge support frame 4 is fitted along a guide rail 5 so as to be movable and stopable by adjusting a fixing screw 6. A fixed chuck support 7 and a fixed chuck 8 protrude from the tension gauge 2. At the other end of the pedestal 1 in the length direction,
The base of a draw rod 10 having a fixing chuck 9 at its tip is rotatably fitted onto the tip of a threaded rod 11, and a rotary handle 12 is provided at the base end of the threaded rod 11. Also, the threaded rod 11 is supported by a threaded rod support 14. Note that the opposing fixing chucks 8 and 9 can be replaced with ones having different shapes. Next, measurement using the above device will be explained. First, when measuring the separation force in case a of FIG. 11, one grain of paddy A is held by a fixing chuck 8, and the stem culm side is held by a fixing chuck 9, as shown in FIG. In addition, on the stem culm side, twig stalk B, second
It consists of secondary ramus C, primary ramus D, cob E, head F, flag leaf G, culm H, etc. Next, when the rotating handle 12 is rotated at a constant speed, the panicle (stem culm side) itself is pulled outward, and the grain A at the tip of the panicle separates from the twig stalk B. At this time, since the fixed chuck 8 is connected to the tension gauge 2 fixed to the base 1, the separation force is measured and displayed on the display section 3. The tension rod 10 is made of a square rod and is inserted into a square hole in the support frame 13, so even if the threaded rod 11 is rotated by the handle 12, the fixed chuck 9 does not rotate and only moves in the horizontal direction. be. Note that the length of the panicle varies depending on the rice variety, so
The tension gauge 2 is moved laterally along the guide rail 5, and the distance between the fixing chucks 8 and 9 is adjusted by the fixing screw 6. Next, when measuring the separation force in cases b and c in Fig. 11, only the fixing chuck 8 is replaced with one that is oriented horizontally as shown in Figs. 5 and 6.
If paddy A is held here and the stem culm side is pulled, two types of vertical separation forces can be measured. In addition, when measuring the torsional horizontal separation force shown in FIG. 11d, the fixed chuck 8 is used as shown in FIG.
The tension rod 10 and support frame 13 on the side of the fixing chuck 9 are removed, leaving the same side, and the fixing chuck 9 is replaced with an instrument fixed directly to the threaded rod 11. When the handle 12 is rotated, the entire ear is pulled in the horizontal direction while rotating, and the paddy A is separated from the fixed chuck 8, and the separation force at that time is measured and displayed. Using the above measurement method, each separation force should be at least 1
The grains of rice in the ears (100 grains) are measured one after another, and based on the average value and deviation, it is possible to classify paddy rice with high separation strength as having difficulty in shedding, and to separate them. By the way, the varieties of Japanese-type paddy rice that are said to have difficulty shedding are a in Figure 11.
In the case of (Figure 4), the average separation force is 200 to 250 g.
100g for the Indian type, which is easy to shed.
It was moderately hot. Note that the shape of the fixing chucks 8 and 9 may be clip-like, hook-like, or other shapes. When the fixing chucks 8 and 9 are shaped like a hook 8a as shown in FIG. The separation force can be measured by inserting the hook through the notch, inserting the paddy A into the round hole in the center of the hook, and pulling on the stem and culm side in the same manner as described above. In this case, when measuring the vertical separation force in b and c in Fig. 11, it is easier to measure the vertical separation force by replacing the device with a hook attached vertically compared to the case in Fig. 8, as shown in Fig. 9. can be measured. In this case, the paddy A is attached to the fixed chuck 8 due to the tensile force.
Although it may twist to the side, this can be solved by attaching the steady rest plate 15. Furthermore, with this shedding tester, as shown in FIG. 10, the separation force between the stalks C and D and the cob E can be similarly measured. In addition, not only paddy rice,
The separation force can be measured in the same way for other grains (grains) such as wheat and beans.

[Effect of the idea]

As explained above, according to the grain shedding test device of the present invention, the grain and the stalk culm side are held and the tensile separation force is measured. The separation force of the stem and the separation force of the stem culm itself can be measured quickly, and measurement results can be obtained with high accuracy and no dispersion. In addition, the device can be constructed compactly and can be carried to a field or the like for simple and easy measurements. moreover,
It is widely applicable not only to paddy rice but also to other grains, and has a wide range of uses.

[Brief explanation of drawings]

Fig. 1 is a plan view of the entire device showing an embodiment of the present invention, Fig. 2 is a side view of the same, and Fig. 3 is the same as Fig. 2.
4 to 7 are explanatory views for use; FIGS. 8a and 9a and 9a and 9b are partial side and front views showing other embodiments of the fixed chuck;
Fig. 10 is a partial side view showing another usage example;
Figures a to d are side views illustrating the principle of separating paddy. 1...Pedestal, 2...Tension gauge, 3...
Pointer type display section, 4...Tension gauge support frame,
5...Guide rail, 6...Fixing screw, 7...Fixing chuck support part, 8, 9...Fixing chuck, 1
0...Tension rod, 11...Threaded rod, 12...Rotating handle, 13...Support frame, 14...Threaded rod support base, 15...Sway rest plate, A...Paddy, B...Twig stem.

Claims (1)

[Claims for Utility Model Registration] (1) A pair of holding mechanisms facing each other with a predetermined interval, and a tensile force measuring device and a tensioning mechanism provided on either one of the holding mechanisms; The grain is held on one side of the mechanism and the stem culm side is held on the other side, and the grain is pulled by the tension mechanism to shed the grain, and the separation force of the grain in one direction or multiple directions at that time is measured by a tensile force measuring device. 1. A grain shedding property testing device, characterized in that the grain shedding property is measured by: (2) The grain shedding property test device according to claim 1, which is characterized in that it is capable of measuring the torsional separation force between grains and stems.