Crop lodging resistance strength measuring probe and crop lodging resistance strength measuring device

Abstract

The present invention belongs to the field of crop lodging resistance strength measurement, and specifically relates to a crop lodging resistance strength measurement probe and a crop lodging resistance strength measurement device. The crop lodging resistance strength measurement probe includes a probe frame, which is used to be fixedly assembled on the probe mounting rod of the corresponding force measuring host. The crop lodging resistance strength measurement probe also includes a cylindrical roller, which is rotatably mounted on the probe frame around its own central axis. The outer peripheral surface of the cylindrical roller extending in the horizontal direction is the force-applying part of the crop lodging resistance strength measurement probe, which applies a thrust perpendicular to the axis of the cylindrical roller itself to the crop group. While the cylindrical roller pushes the crop group in the horizontal direction, it also rotates itself, converting the sliding friction between the probe and the crop into rolling friction, reducing the friction between the crop and the probe, and ensuring that the value measured by the force measuring host can truly reflect the lodging resistance of the crop group.

Description

Technical Field

[0001] The invention belongs to the field of crop lodging resistance strength measuring devices, and in particular relates to a crop lodging resistance strength measuring probe and a crop lodging resistance strength measuring device. Background Art

[0002] There are many ways to prevent crop lodging, but breeding lodging-resistant crop varieties is the fundamental way to prevent lodging. One of the keys to the success of lodging-resistant variety breeding is whether the lodging resistance of the variety can be accurately evaluated. At present, a more accurate and reliable evaluation method is to use the corresponding lodging resistance evaluation device to measure the critical thrust of crop population lodging.

[0003] For example, a portable electronic tester for the lodging resistance of crops disclosed in the Chinese utility model patent with the authorization announcement number CN202281723U mainly consists of a ball guide rail, a digital display force measuring device, a multifunctional tripod and a probe. When the tester is used to measure the lodging resistance of a crop group, a special probe is fixed to the front of the digital display force measuring device. The tester holds the digital display force measuring device and pushes it forward horizontally. The probe applies a thrust to the crop group until the crop group is pushed to a 45-degree angle with the ground. The reading of the force measuring device is read to determine the lodging resistance of the crop group.

[0004] The existing probe is a plate-type probe, which uses a flat plate to apply a pushing force to the crop group. In the process of pushing the crop group to lodging, there is a relative sliding between the crop group and the flat plate of the probe. This relative sliding will actually act on the flat plate in the form of sliding friction resistance, resulting in the probe being subjected to resistance in addition to the resistance of the crop group to lodging, as well as the sliding friction between the probe and the crop group. As a result, the result actually measured by the force measuring device will be greater than the actual critical thrust of the crop group to resist lodging, which will directly affect the accuracy of the measurement results of the measuring device using the probe. Summary of the invention

[0005] The purpose of the present invention is to provide a probe for measuring the lodging resistance of crops, so as to reduce the technical problem that the friction between the probe and the crop group in the prior art affects the measurement result of the lodging resistance of the crop group. At the same time, the present invention also provides a device for measuring the lodging resistance of crops, so as to solve the technical problem that the sliding friction between the probe and the crop group in the prior art causes the critical thrust of the lodging resistance of crops measured by the device for measuring the lodging resistance of crops to be too large.

[0006] To achieve the above purpose, the crop lodging resistance strength measurement probe of the present invention adopts the following technical scheme:

[0007] A crop lodging resistance strength measurement probe comprises a probe frame for fixedly assembling on a probe mounting rod of a corresponding force measuring host, the probe frame having two arms, the crop lodging resistance strength measurement probe also comprising a cylindrical roller, both ends of the cylindrical roller being rotatably mounted on the probe frame around its own central axis through end bearings, the outer circumferential surface of the cylindrical roller extending in the horizontal direction being the force-applying part of the crop lodging resistance strength measurement probe, applying a thrust perpendicular to the axis of the cylindrical roller itself to a crop group, the probe frame comprising a mounting bracket, the mounting bracket being provided with a probe mounting structure, the probe mounting structure being used to mount the probe on the corresponding force measuring host.

[0008] The beneficial effect of the present invention is that: a cylindrical roller that can rotate around its own axis is installed on the probe frame, and the outer peripheral surface of the cylindrical roller extending in the horizontal direction is the force-applying part of the probe. When the probe pushes the crop group in the horizontal direction, under the action of the friction between the crop group and the outer peripheral surface of the cylindrical roller, the cylindrical roller will rotate around its own axis, thereby converting the sliding friction between the probe and the crop into rolling friction, reducing the friction between the crop group and the probe. At the same time, the outer peripheral surface of the cylindrical roller extending in the horizontal direction serves as the force-applying part of the probe, and contacts the crop group through its outer peripheral surface, so that the probe and the crop group are in line contact, reducing the contact area between the probe and the crop, further reducing the friction between the probe and the crop, and reducing the influence of the sliding friction of the existing probe on the critical thrust of the anti-lodging of the measured crop group. The two ends of the cylindrical roller are assembled on the probe frame through the end bearings, so that the cylindrical roller can be simply and conveniently installed on the probe frame. At the same time, the setting of the end bearings can ensure that the cylindrical roller frame can rotate smoothly relative to the probe frame.

[0009] Furthermore, each end bearing is fixed to the corresponding support arm through a corresponding bearing seat, and the cylindrical roller, the end bearing and the bearing seat form a pre-assembled assembly. The cylindrical roller cooperates with the two support arms of the probe frame through the bearing seats at both ends, and the two bearing seats arranged at the two ends of the corresponding cylindrical roller are fixed to the corresponding support arms by fastening screws.

[0010] Beneficial effect: Each end bearing is fixed on the corresponding support arm through the corresponding bearing seat. Therefore, when assembling the probe, the cylindrical roller, the end bearing and the bearing seat can be assembled into a pre-assembled component, and then the bearing seat can be fixedly installed on the corresponding support arm to complete the rotational installation of the cylindrical roller on the probe frame. The whole assembly process is simple and easy to operate.

[0011] Furthermore, the probe frame includes a mounting bracket and a roller mounting frame which are separately fixedly assembled together, the cylindrical roller is rotatably mounted on the roller mounting frame, and both ends of the cylindrical roller are inserted into the inner rings of corresponding end bearings.

[0012] Beneficial effects: The probe frame includes a mounting bracket and a roller mounting frame which are separately fixedly assembled together, and the probe mounting structure is arranged on the mounting bracket. During the production process, the mounting bracket and the roller mounting frame can be processed and manufactured separately, and then the processed parts can be fixedly assembled together, thereby reducing the difficulty of producing and manufacturing the probe frame.

[0013] Furthermore, the probe mounting structure includes a probe mounting hole and a fastening screw mounting hole which are arranged on the mounting bracket and are connected to each other. The probe mounting hole is used to be inserted and matched with the probe mounting rod of the corresponding force measuring host, and the fastening screw mounting hole is used to install a fastening screw that is tightened on the probe mounting rod to fix the crop lodging resistance strength measurement probe on the force measuring host.

[0014] Beneficial effect: by providing a probe mounting hole and a fastening screw mounting hole that are connected to each other, the probe can be stably fixed on the force measuring host by installing a fastening screw in the fastening screw mounting hole, thereby preventing the probe from rotating due to loose fixation during thrust measurement, thereby ensuring the accuracy of the measurement result.

[0015] In order to achieve the above-mentioned purpose, the crop lodging resistance strength measuring device of the present invention adopts the following technical scheme:

[0016] A device for measuring the crop lodging resistance strength comprises a force measuring main unit for measuring the critical thrust of crop lodging resistance, the force measuring main unit has a probe mounting rod, a probe is fixedly mounted on the probe mounting rod, the probe comprises a probe frame, the probe frame has two arms, the probe also comprises a cylindrical roller, both ends of the cylindrical roller are rotatably mounted on the probe frame around their own central axis through end shafts, the outer peripheral surface of the cylindrical roller extending in the horizontal direction is the force applying part of the crop lodging resistance strength measuring probe, which applies a thrust perpendicular to the axis of the cylindrical roller itself to the crop group, the probe frame comprises a mounting bracket, the mounting bracket is provided with a probe mounting structure, and the probe mounting structure is used to install the probe on the corresponding force measuring main unit.

[0017] The beneficial effect of the present invention is that a cylindrical roller that can rotate around its own axis is installed on the probe frame, and the outer peripheral surface of the cylindrical roller extending in the horizontal direction is the force-applying part of the probe. Then, when the probe is used to push the crop group in the horizontal direction, under the action of the friction between the crop group and the outer peripheral surface of the cylindrical roller, the cylindrical roller will rotate around its own axis, thereby converting the sliding friction between the probe and the crop into rolling friction, reducing the friction between the crop group and the probe. At the same time, the outer peripheral surface of the cylindrical roller extending in the horizontal direction serves as the force-applying part of the probe, and contacts the crop group through its outer peripheral surface, so that the probe and the crop group are in line contact, reducing the contact area between the probe and the crop, so as to further reduce the friction between the probe and the crop, and ensure that the value measured by the force measuring host can truly reflect the lodging resistance of the measured crop group. Both ends of the cylindrical roller are assembled on the probe frame through end bearings, so that the cylindrical roller can be simply and conveniently rotatably mounted on the probe frame. At the same time, the arrangement of the end bearings can ensure that the cylindrical roller frame can rotate smoothly relative to the probe frame.

[0018] Furthermore, each end bearing is fixed to the corresponding support arm through a corresponding bearing seat, and the cylindrical roller, the end bearing and the bearing seat form a pre-assembled assembly. The cylindrical roller cooperates with the two support arms of the probe frame through the bearing seats at both ends, and the two bearing seats arranged at the two ends of the corresponding cylindrical roller are fixed to the corresponding support arms by fastening screws.

[0019] Beneficial effect: Each end bearing is fixed on the corresponding support arm through the corresponding bearing seat. Therefore, when assembling the probe, the cylindrical roller, the end bearing and the bearing seat can be assembled into a pre-assembled component, and then the bearing seat can be fixedly installed on the corresponding support arm to complete the rotational installation of the cylindrical roller on the probe frame. The whole assembly process is simple and easy to operate.

[0020] Furthermore, the probe frame includes a mounting bracket and a roller mounting frame which are separately fixedly assembled together, the cylindrical roller is rotatably mounted on the roller mounting frame, and both ends of the cylindrical roller are inserted into the inner rings of corresponding end bearings.

[0021] Beneficial effects: The probe frame includes a mounting bracket and a roller mounting frame which are separately fixedly assembled together, and the probe mounting structure is arranged on the mounting bracket. During the production process, the mounting bracket and the roller mounting frame can be processed and manufactured separately, and then the processed parts can be fixedly assembled together, which reduces the difficulty of producing and manufacturing the probe frame, and further reduces the difficulty of producing and manufacturing the crop lodging resistance strength measuring device.

[0022] Furthermore, the probe mounting structure includes a probe mounting hole and a fastening screw mounting hole which are arranged on the mounting bracket and are connected to each other. The probe mounting hole is used to be inserted and matched with the probe mounting rod of the corresponding force measuring host, and the fastening screw mounting hole is used to install a fastening screw that is tightened on the probe mounting rod to fix the crop lodging resistance strength measurement probe on the force measuring host.

[0023] Beneficial effect: By providing a probe mounting hole and a fastening screw mounting hole that are connected to each other, the probe can be stably fixed on the force measuring host by installing a fastening screw in the fastening screw mounting hole, thereby preventing the probe from rotating due to loose fixation during the thrust measurement process, thereby ensuring the accuracy of the results measured by the crop lodging resistance measuring device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A top view of a first embodiment of a probe for measuring the lodging resistance of crops in the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of a first embodiment of a probe for measuring the lodging resistance of crops in the present invention;

[0026] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0027] Figure 4 This is a schematic diagram of the structure of a second embodiment of a probe for measuring the lodging resistance of crops in the present invention;

[0028] Figure 5 It is a structural schematic diagram of a device for measuring the lodging resistance of crops in the present invention;

[0029] In the figure: 1- cylindrical roller; 2- roller mounting frame; 3- mounting bracket; 4- fastening screw mounting hole; 5- end bearing; 6- bearing seat; 7- fixing hole; 8- probe mounting hole; 9- flange bearing; 10- force measuring host; 11- probe; 12- locking screw. DETAILED DESCRIPTION

[0030] Embodiment 1 of the crop lodging resistance measurement probe of the present invention is as follows Figure 1 and Figure 2 As shown, the probe includes a cylindrical roller 1, a roller mounting frame 2 and a mounting bracket 3, wherein the roller mounting frame 2 and the mounting bracket 3 are correspondingly provided with fixing holes 7, and metal rivets are inserted into the fixing holes 7 to fix the roller mounting frame 2 and the mounting bracket 3 together to form a probe frame.

[0031] like Figure 2As shown, the end surface of the mounting bracket 3 facing away from the roller mounting frame 2 is provided with a probe mounting hole 8, which is used to be inserted and matched with the probe mounting rod on the corresponding force measuring host to install the probe on the force measuring host. In addition, in order to improve the stability of the probe installation on the force measuring host, as shown in FIG. Figure 1 As shown, a fastening screw mounting hole 4 is provided on the upper side of the mounting bracket 3, and the fastening screw mounting hole 4 is vertically connected with the probe mounting hole 8. A corresponding fastening screw is screwed into the fastening screw mounting hole 4 to tighten the probe mounting rod of the force measuring host, so as to prevent the probe from rotating due to loose fixation during the thrust measurement process, thereby ensuring the accuracy of the measurement result. The fastening screw mounting hole 4 and the probe mounting hole 8 constitute a probe mounting structure.

[0032] The specific structure of the roller mounting frame 2 is as follows: Figure 1 As shown, the roller mounting frame 2 has two arms, and the cylindrical roller 1 is rotatably mounted on the two arms of the probe mounting frame around its own central axis. The cylindrical roller 1 has an outer peripheral surface extending in the horizontal direction, and the outer peripheral surface serves as the force-applying part of the probe to apply a thrust perpendicular to the axis of the cylindrical roller itself to the crop group.

[0033] Regarding the installation method of the cylindrical roller 1 on the roller mounting frame 2, in this embodiment, both ends of the cylindrical roller are rotatably assembled on the roller mounting frame 2 through end bearings 5, specifically, as shown in FIG. Figure 3 As shown, the two ends of the cylindrical roller 1 are inserted into the inner ring of the corresponding end bearing 5, and the cylindrical roller 1 and the inner ring of the bearing are locked and fixed by screwing the locking screw 12 on the inner ring of the bearing. The end bearing 5 is fixed to the corresponding support arm through the corresponding bearing seat 6, and the cylindrical roller 1 cooperates with the two support arms through the bearing seats 6 at both ends.

[0034] When assembling the probe, first assemble the cylindrical roller 1, the end bearing 5 and the bearing seat 6 together to form a pre-assembled component, then install the pre-assembled component as a whole into the installation space of the roller mounting frame 2, and fix the bearing seat 6 on the corresponding support arm with the corresponding fastening screws.

[0035] When using the crop lodging resistance strength measurement probe of the present invention to measure the critical lodging resistance of crops, the probe is installed on the corresponding force measuring host, the force measuring host is pushed horizontally, and the cylindrical roller 1 of the probe is used to apply thrust to the crop group to be measured until the crop group is tilted to 45° with the ground, and the measurement result of the force measuring host is read as a basis for evaluating the lodging resistance of the variety. Since the cylindrical roller 1 is rotatably mounted on the roller mounting frame, the cylindrical roller 1 itself will also rotate when pushing the crop group in the horizontal direction, thereby avoiding the generation of a large sliding friction between the probe and the crop group, so that the result measured by the force measuring host can reflect the critical lodging resistance of the crop to be measured as realistically as possible.

[0036] Embodiment 2 of the crop lodging resistance measurement probe of the present invention is different from Embodiment 1 in that the end bearing in Embodiment 1 is mounted on the probe frame through a corresponding bearing seat. Figure 4 As shown, the end bearing is a miniature flange bearing 9, each miniature flange bearing 9 is correspondingly mounted in a mounting hole opened on the support arm of the roller mounting frame 2, and the flange of the miniature flange bearing 9 cooperates with the stop of each support arm to rotatably mount the cylindrical roller 1 on the roller mounting frame 2.

[0037] An embodiment of the crop lodging resistance determination device of the present invention is as follows Figure 5 As shown, the measuring device includes a force measuring main unit 10 for measuring the magnitude of the critical thrust of crop resistance to lodging, and also includes a probe 11 for applying force to the crop group. The probe 11 is installed on the force measuring main unit 10. When in use, the force measuring main unit 10 is moved horizontally, and the probe 11 is used to apply force to the crop group, so that the angle between the crop group and the ground is 45°, and the reading of the force measuring main unit 10 is read as a basis for evaluating the lodging resistance of the variety. Among them, the probe 11 of the measuring device has the same structure and working principle as the crop resistance strength measuring probe in the above-mentioned embodiments, and will not be repeated here.

Claims

1. A probe for measuring the lodging resistance of crops, comprising a probe frame, which is used for being fixedly assembled on a probe mounting rod of a corresponding force measuring host, and is characterized in that: The probe frame has two arms, and the crop lodging resistance strength measurement probe also includes a cylindrical roller. The two ends of the cylindrical roller are rotatably mounted on the probe frame around its own central axis through end bearings. The outer circumferential surface of the cylindrical roller extending in the horizontal direction is the force-applying part of the crop lodging resistance strength measurement probe, which applies a thrust perpendicular to the axis of the cylindrical roller itself to the crop group. The probe frame includes a mounting bracket, and a probe mounting structure is provided on the mounting bracket. The probe mounting structure is used to mount the probe on a corresponding force measuring host.

2. The crop lodging resistance measuring probe according to claim 1, characterized in that: Each end bearing is fixed on the corresponding support arm through the corresponding bearing seat. The cylindrical roller, the end bearing and the bearing seat form a pre-assembled assembly. The cylindrical roller cooperates with the two support arms of the probe frame through the bearing seats at both ends. The two bearing seats arranged at the two ends of the corresponding cylindrical roller are fixed on the corresponding support arms by fastening screws.

3. The crop lodging resistance measuring probe according to claim 1 or 2, characterized in that: The probe frame comprises a mounting bracket and a roller mounting frame which are separately fixedly assembled together, the cylindrical roller is rotatably mounted on the roller mounting frame, and both ends of the cylindrical roller are inserted into the inner rings of corresponding end bearings.

4. The crop lodging resistance measuring probe according to claim 3, characterized in that: The probe mounting structure includes a probe mounting hole and a fastening screw mounting hole which are arranged on the mounting bracket and are connected to each other. The probe mounting hole is used to be inserted and matched with the probe mounting rod of the corresponding force measuring host, and the fastening screw mounting hole is used to install a fastening screw that is tightened on the probe mounting rod to fix the crop lodging resistance strength measurement probe on the force measuring host.

5. A device for measuring the lodging resistance of crops, comprising a force measuring main unit for measuring the critical thrust of the lodging resistance of crops, the force measuring main unit having a probe mounting rod, a probe being fixedly mounted on the probe mounting rod, the probe comprising a probe frame, characterized in that: The probe frame has two arms, and the probe also includes a cylindrical roller. The two ends of the cylindrical roller are rotatably mounted on the probe frame around its own central axis through end shafts. The outer circumferential surface of the cylindrical roller extending in the horizontal direction is the force-applying part of the crop lodging resistance strength measurement probe, which applies a thrust perpendicular to the axis of the cylindrical roller itself to the crop group. The probe frame includes a mounting bracket, and a probe mounting structure is provided on the mounting bracket. The probe mounting structure is used to mount the probe on a corresponding force measuring host.

6. The crop lodging resistance measuring device according to claim 5, characterized in that: Each end bearing is fixed on the corresponding support arm through the corresponding bearing seat. The cylindrical roller, the end bearing and the bearing seat form a pre-assembled assembly. The cylindrical roller cooperates with the two support arms of the probe frame through the bearing seats at both ends. The two bearing seats arranged at the two ends of the corresponding cylindrical roller are fixed on the corresponding support arms by fastening screws.

7. The crop lodging resistance measuring device according to claim 5 or 6, characterized in that: The probe frame comprises a mounting bracket and a roller mounting frame which are separately fixedly assembled together, the cylindrical roller is rotatably mounted on the roller mounting frame, and both ends of the cylindrical roller are inserted into the inner rings of corresponding end bearings.

8. The crop lodging resistance measuring device according to claim 7, characterized in that: The probe mounting structure includes a probe mounting hole and a fastening screw mounting hole which are arranged on the mounting bracket and are connected to each other. The probe mounting hole is used to be inserted and matched with the probe mounting rod of the corresponding force measuring host, and the fastening screw mounting hole is used to install a fastening screw that is tightened on the probe mounting rod to fix the crop lodging resistance strength measurement probe on the force measuring host.

Images