A cutter self-adaptive ground system

Abstract

The present application relates to a cane recovery equipment technical field, particularly to a cutter adaptive ground system, including the vehicle head girder installed in the front side of the cane harvester and the ground height detection mechanism installed in the vehicle head girder for detecting the ground flatness and feeding the detection signal to the cane harvester PLC control device, and the hydraulic cutting cutter disc mechanism arranged in the front side of the cane harvester and connected with the ground height detection mechanism, the ground height detection mechanism is provided with displacement detection assembly, the displacement detection assembly is provided with height measuring guide wheel and encoder for calculating the up-down movement height of the height measuring guide wheel, the hydraulic cutting cutter disc mechanism is provided with driving device and cutting cutter disc, and the driving device is controlled by the PLC control device to adjust the height of the cutting cutter disc, the cutter adaptive ground system can keep the distance between the cutting cutter disc and the ground consistent through simple structure, is convenient to use, has low manufacturing cost, is suitable for the harvesting of various cane fields, and has high practicality.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sugarcane recovery equipment, in particular to a cutter adaptive ground system. BACKGROUND

[0002] The sugarcane resources are abundant in the south of China, but the utilization of the sugarcane resources is not ideal. The harvesting efficiency and quality of the sugarcane directly affect the subsequent conveying, leaf stripping and other processes, so the work of cutting the roots of the sugarcane in the field and collecting is very critical. The existing sugarcane harvesting generally has manual harvesting and harvester harvesting. Since the manual harvesting is to harvest the sugarcane root by root, the labor intensity is large and the efficiency is low, but the quality of the manually harvested sugarcane is relatively stable. The harvester generally installs a harvesting device in front of a power vehicle to harvest the sugarcane, and a cutting cutter is installed at the bottom of the harvesting device. The sugarcane cut by the cutting cutter of the power vehicle is cut off at the root and falls to the ground to realize automatic harvesting.

[0003] However, due to the soft soil in the farmland, the ups and downs of the ground, the uneven terrain, and the characteristics of the tracked vehicle having serious hysteresis, it is difficult for the driver to control the cutting height of the cutting cutter to keep it at a certain height. The current cutting mechanism of the sugarcane harvester is that the driver controls the cutting height of the cutting cutter by manually controlling the lifting hydraulic cylinder of the cutting cutter according to visual observation and experience, which undoubtedly puts higher requirements on the technical level and experience of the driver, and increases the labor intensity of the driver, which is not conducive to the popularization of mechanized harvesting. SUMMARY

[0004] Therefore, it is necessary to provide a cutter adaptive ground system to overcome the problems that the driver is difficult to control the cutting height of the cutting cutter, needs high technical level and experience, and has high labor intensity, which is not conducive to mechanization. The ground height detection mechanism detects the ground level height in real time, and the encoder calculates the active height of the height measuring guide wheel, and the signal is fed back to the harvester PLC control device. The driving device adjusts the height of the cutting cutter through the harvester PLC control device, so as to overcome the shortcomings of the existing sugarcane harvester, such as low automation level, complex operation, high labor intensity, poor adaptability, high operation requirement and insufficient cutting precision.

[0005] The application is realized by the following technical scheme: a cutter self-adapting ground system, comprising: a vehicle head girder installed on the front side of a sugarcane harvester, a ground height detection mechanism installed on the vehicle head girder for detecting the flatness of the ground and feeding the detection signal to a sugarcane harvester PLC control device, and a hydraulic cutting cutter disc mechanism arranged on the front side of the sugarcane harvester and connected with the ground height detection mechanism; the ground height detection mechanism is provided with a displacement detection assembly, the displacement detection assembly is provided with a height measuring guide wheel which can move up and down and an encoder for calculating the height of the up and down movement of the height measuring guide wheel, and the encoder feeds the detected data to the PLC control device; the hydraulic cutting cutter disc mechanism is used for cutting sugarcane, the hydraulic cutting cutter disc mechanism is provided with a driving device and a cutting cutter disc, and the driving device is controlled by the PLC control device to adjust the height of the cutting cutter disc according to the signal of the encoder, so as to automatically adapt to different sugarcane ridge heights by adjusting the difference between the cutting cutter disc and the height measuring guide wheel according to the terrain.

[0006] Further, the displacement detection assembly is further provided with a bottom plate installed on the vehicle head girder and having a vertically arranged slide rail, a side plate is slidably arranged on the bottom plate, the bottom plate is provided with a first pushing device for driving the side plate to slide up and down along the slide rail, the encoder is installed on the side plate, a first sliding rod which can slide up and down is arranged on the side plate at the side of the encoder, a first rack is connected to the first sliding rod, a gear which is engaged with the first rack is connected to the input end of the encoder, and the height measuring guide wheel is connected to the bottom of the first sliding rod and is driven by the height measuring guide wheel to move up and down, so as to realize the calculation of the flatness of the ground by the encoder.

[0007] Further, the bottom of the side plate is provided with a support rod, the end of the support rod away from the side plate is hingedly connected with a roller connecting rod, the height measuring guide wheel is rotatably installed at the end of the roller connecting rod, and the support rod is provided with a second pushing device connected with the roller connecting rod and used for driving the roller connecting rod.

[0008] Further, the hydraulic cutting cutter disc mechanism is further provided with a front support installed on the front side of the sugarcane harvester, the front support is hingedly connected with a cutting cutter disc support for installing the cutting cutter disc, and the output end of the driving device is connected with the cutting cutter disc support.

[0009] Further, the driving device is provided with two driving devices, one of which is connected with the vehicle head girder, and the driving device is provided with a mounting seat, the mounting seat is provided with a second sliding rod, the bottom of the second sliding rod is connected with the cutting cutter disc support, the second sliding rod is provided with a second rack, the mounting seat is provided with an execution encoder having a gear engaged with the second rack connected to the input end, and the execution encoder is electrically connected with the PLC control device.

[0010] Further, the side plate and the mounting seat are provided with a rack protection cover.

[0011] Further, the cutting disc is provided with a cutter connecting base connected with the cutting disc support, a driving motor is installed on the cutter connecting base, an output end of the driving motor is provided with a shaft coupling, and the cutting disc is installed on the shaft coupling.

[0012] Further, the encoder and the execution encoder feedback the same value to the PLC control device.

[0013] Further, the cutting disc self-adapting ground system further comprises a filtering system for filtering the height measuring guide wheel through a small ditch and a small ridge, and the filtering signal is controlled by the PLC control device so that the driving device is not actuated.

[0014] Further, the side plate is provided with a position sensor for detecting the original position of the first rack when the first pushing device pushes the height measuring guide wheel, and the position sensor is electrically connected with the PLC control device.

[0015] Compared with the prior art, the present application has the following beneficial technical effects: by setting the ground height detection mechanism and the hydraulic cutting disc mechanism, when the height measuring guide wheel encounters uneven ground during the movement and harvesting of the sugarcane harvester, the height measuring guide wheel moves up and down, the distance of the up-and-down movement of the height measuring guide wheel is calculated by the encoder, and the calculated distance is fed back to the PLC control device by the encoder, so that the PLC control device controls the driving device to adjust the height of the cutting disc according to the received signal, and then controls the height of the cutting disc and the ground, so that the cutting disc can follow the height measuring guide wheel and adaptively adjust the cutting height according to the ground fluctuation in real time during the harvesting of the sugarcane harvester, and the distance between the cutting disc and the ground is always kept consistent. The cutting disc self-adapting ground system can well keep the distance between the cutting disc and the ground consistent through a simple structure, is convenient to use, has low manufacturing cost, is suitable for the harvesting of various sugarcane fields, and has high practicability. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of one perspective of the present application;

[0017] Figure 2 It is a structural schematic view of another perspective of the present application;

[0018] Figure 3 It is a structural schematic view of the ground height detection mechanism in the present application;

[0019] Figure 4 It is a structural schematic view of the hydraulic cutting disc mechanism in the present application. DETAILED DESCRIPTION

[0020] For the above-mentioned purposes, features and advantages of the present application to be more apparent and easy to understand, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. In the following description, a number of specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different manners other than those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0021] Referring to Figure 1 and Figure 2 , the embodiment provides a cutter adaptive ground system, which is installed on the front side of the vehicle head of a sugarcane harvester, and the electronic components on the cutter adaptive ground system are electrically connected with the PLC control device on the sugarcane harvester, which comprises a vehicle head girder 10 installed on the front side of the sugarcane harvester, and the vehicle head girder 10 is installed with a ground height detection mechanism 20 and a hydraulic cutting cutter disc mechanism 30;

[0022] Wherein, referring to Figure 3 , the ground height detection mechanism 20 is mainly used for detecting the flatness of the ground and feeding back the detection signal to the PLC control device of the sugarcane harvester, so that the hydraulic cutting cutter disc mechanism 30 is controlled by the PLC control device to adjust the height of the cutting cutter disc 33 to be consistent with the ground. The ground height detection mechanism 20 is provided with a displacement detection assembly, which is provided with a bottom plate 21 installed on the vehicle head girder 10, two slide rails 210 horizontally arranged on the bottom plate 21, a side plate 22 slidably arranged on the bottom plate 21, and a first pushing device 23 arranged on the bottom plate 21 and used to drive the side plate 22 to slide up and down along the slide rails 210. An encoder 24 is installed on the side plate 22, a first sliding rod 25 slidably arranged on the side plate 22 at the side of the encoder 24, a first rack 26 connected to the first sliding rod 25, and a gear connected with the first rack 26 and connected to the input end of the encoder 24. In addition, the bottom of the side plate 22 is provided with a support rod 27, the end of the support rod 27 away from the side plate 22 is hingedly connected with a roller connecting rod 270, the end of the roller connecting rod 270 is provided with a height measuring guide roller 28, the height measuring guide roller 28 is rotatably installed on the end of the roller connecting rod 270 through a rotating shaft 272, the support rod 27 is provided with a second pushing device 271 connected with the roller connecting rod 270 and used to push the roller connecting rod 270, and a swing rod 250 hingedly connected with the rotating shaft 272 is movably connected to the end of the first sliding rod 25;

[0023] When the ground height detecting mechanism 20 is working, the height of the cane ridge is preset in the PLC control device first, the PLC control device controls the first pushing device 23 to drive the first pushing device 23 to push the side plate 22, so that the swing lever 250 pushes down the height detecting guide wheel 28, until the position sensor 29 arranged on the side plate 22 senses the original position of the first gear, the position sensor 29 feeds back the signal to the PLC control device, so that the PLC control device controls the first pushing device 23 to stop pushing down the height detecting guide wheel 28, when the sugarcane harvester advances to the bottom surface with large undulation, the second pushing device 271 pushes down the height detecting guide wheel 28, while the height detecting guide wheel 28 moves down or up, the swing lever 250 pushes the first sliding rod 25 to drive the first rack 26 to move down or up, so that the encoder 24 calculates the distance value of the first rack 26 moving down or up, and feeds back the calculated value to the PLC control device, the hydraulic cutting cutter mechanism 30 adjusts the distance between the cutting cutter 33 and the bottom surface according to the PLC control device, so that the hydraulic cutting cutter mechanism 30 can adjust the difference between the cutting cutter 33 and the height detecting guide wheel 28 according to the terrain, so as to automatically adapt to different cane ridge heights. It needs to be explained that the sugarcane field has ridge and ditch, and the cane ridge is the growth part of the sugarcane row, and the both sides are the ridge and ditch, and the cane ridge is normally higher than the ground.

[0024] It needs to be explained that in the embodiment, the first pushing device 23 adopts a hydraulic cylinder, and the second pushing device 271 adopts a pneumatic cylinder, in other embodiments, the first pushing device 23 and the second pushing device 271 can adopt other cylinder bodies, which are not limited in the application.

[0025] Please refer to Figure 4The hydraulic cutting disc mechanism 30 is mainly used for cutting sugarcane. The hydraulic cutting disc mechanism 30 is provided with a front support 31 installed on the front side of the sugarcane harvester. The front support 31 movably hinged has a cutting disc support 32 for installing a cutting disc 33. Two driving devices 34 are provided on the cutting disc support 32 and connected with the cutting disc support 32. The two driving devices 34 are respectively fixed on the vehicle head beam 10 and the front side of the sugarcane harvester. The driving device 34 connected with the vehicle head beam 10 is provided with a hollow mounting seat 340. The mounting seat 340 is provided with a second sliding rod 341. The bottom of the second sliding rod 341 is connected with the cutting disc support 32. The second sliding rod 341 is provided with a second rack. An execution encoder is provided in the mounting seat 340. The execution encoder is connected with a gear engaged with the second rack. The execution encoder is electrically connected with the PLC control device. The cutting disc support 32 is provided with a tool connecting seat 320. The tool connecting seat 320 is installed with a driving motor 321. The output end of the driving motor 321 is installed with a shaft coupling. The cutting disc 33 is installed on the shaft coupling. When the sugarcane harvester advances to the ground surface with large undulations, the encoder 24 will detect the undulation height value and feed back to the PLC control device. The PLC control device controls the driving device 34. The driving device 34 pushes the cutting disc support 32 to drive the cutting disc 33 to move up and down. At the same time, the cutting disc support 32 drives the second sliding rod 341 to move up and down, so that the execution encoder calculates the second rack stroke. When the value calculated by the execution encoder is consistent with the value fed back by the encoder 24 to the PLC control device, the PLC control device controls the driving device 34 to stop working, thereby ensuring that the distance between the cutting disc 33 and the ground surface is always consistent, avoiding the inconsistency of the cutting height of the cutting disc 33 when cutting sugarcane, and preventing the waste of resources.

[0026] It should be noted that in the present embodiment, the driving device 34 adopts a hydraulic cylinder. In addition, the first sliding rod 25 and the second sliding rod 341 can normally slide up and down. The sliding block 50 cooperating with the first sliding rod 25 and the second sliding rod 341 is fixedly installed on the side plate 22 and the mounting seat 340.

[0027] Preferably, in order to protect the service life of the first rack 26 and the second rack, and to ensure that the first rack 26 and the second rack cooperate with the encoder 24 and the execution encoder to calculate, and to avoid the influence of soil or dust on the calculation accuracy of the encoder 24 and the execution encoder, the rack protection cover 40 is arranged on the side plate 22 and the mounting seat 340, so as to avoid the soil or dust entering the rack protection cover 40.

[0028] Further, the cutter adaptive ground system also comprises a filtering system for filtering the height guide wheel 28 passing through the small ditch and the small ridge, the filtering system is set as a time relay, the time relay is set in the PLC control device, the time value of the height guide wheel 28 moving up and down is preset on the PLC control device, the PLC control device filters out the change of the value calculated by the encoder 24 within the preset time when the height guide wheel 28 moves up and down, thereby avoiding the PLC control device controlling the driving device 34 to work to adjust the position of the cutting cutter 33. For example, when the height guide wheel 28 detects the height from 100 to 130, and the height guide wheel 28 moves up and down for less than 2 preset time values, it changes back to 100. In this process, the PLC control device does not control the driving device 34 to work, and the height of the cutting cutter 33 is unchanged, thereby effectively improving the harvesting efficiency.

[0029] In summary, the working principle of the cutter adaptive ground system is as follows:

[0030] First, the height of the cane ridge is preset in the PLC control device, the PLC control device controls the first driving device 23 to drive the first driving device 23 to push the side plate 22, so that the swing rod 250 pushes the height guide wheel 28 downward, until the position sensor 29 set on the side plate 22 senses the original position of the first gear, the position sensor 29 feeds back the signal to the PLC control device, so that the PLC control device controls the first driving device 23 to stop pushing the height guide wheel 28 downward. When the sugarcane harvester advances to the bottom surface with large undulations, the second driving device 271 pushes the height guide wheel 28 downward, and the height guide wheel 28 moves downward or upward at the same time, so that the swing rod 250 pushes the first sliding rod 25 to drive the first rack 26 to move downward or upward, so that the encoder 24 calculates the distance value of the first rack 26 moving downward or upward, and feeds back the calculated value to the PLC control device; after the PLC control device receives the feedback information of the encoder 24, the driving device 34 is controlled by the PLC control device, the driving device 34 pushes the cutting cutter support 32 to drive the cutting cutter 33 to move up and down, at the same time, the cutting cutter support 32 drives the second sliding rod 341 to move up and down, so that the second rack stroke is executed by the encoder, when the calculated value of the executing encoder is consistent with the value fed back by the encoder 24 to the PLC control device, the PLC control device controls the driving device 34 to stop working, thereby ensuring that the distance between the cutting cutter 33 and the ground always remains consistent, avoiding the inconsistency of the cutting height of the cutting cutter 33, and preventing the waste of resources.

[0031] By setting the ground height detection mechanism 20 and the hydraulic cutting cutter mechanism 30, when the sugarcane harvester moves and harvests, the height measuring guide wheel 28 moves up and down when encountering uneven ground, the distance of the height measuring guide wheel 28 moving up and down is calculated by the encoder 24, and the calculated distance is fed back to the PLC control device by the encoder 24, and then the PLC control device controls the driving device 34 to adjust the height of the cutting cutter 33 according to the received signal, and then controls the height of the cutting cutter 33 and the ground, so that the cutting cutter 33 can follow the height measuring guide wheel 28 to adaptively adjust the cutting height when the sugarcane harvester is harvesting, so that the distance between the cutting cutter 33 and the ground is always consistent. The cutting cutter adaptive ground system can always keep the distance between the cutting cutter 33 and the ground consistent through simple structure, is convenient to use, has low manufacturing cost, and is suitable for harvesting of various sugarcane fields, and has high practicability.

[0032] In the description of the present application, it should be noted that the terms "upper", "lower", "vertical", "horizontal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0033] The technical features of the above-described embodiments can be combined arbitrarily, and in order to make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present application.

Claims

1. A cutter adaptive ground system, characterized by, The utility model relates to a sugarcane harvester front side head beam and the ground height detection mechanism for detecting the ground flatness and feeding back the detection signal to the sugarcane harvester PLC control device are installed on the head beam, and the hydraulic cutting cutter mechanism is arranged on the front side of the sugarcane harvester and is connected with the ground height detection mechanism, wherein the ground height detection mechanism is provided with a displacement detection assembly, the displacement detection assembly is provided with a height measuring guide wheel that can move up and down and an encoder for calculating the height of the height measuring guide wheel moving up and down, and the encoder feeds back the detected data to the PLC control device; the hydraulic cutting cutter mechanism is used for cutting sugarcane, and the hydraulic cutting cutter mechanism is provided with a driving device and a cutting cutter, and the signal of the encoder is received by the PLC control device to control the driving device to adjust the height of the cutting cutter, so that the difference between the cutting cutter and the height measuring guide wheel is adjusted according to the terrain, and different sugarcane ridge heights can be automatically adapted. The displacement detection assembly is further provided with a bottom plate installed on the head beam and having a vertically arranged slide rail, a side plate is slidably arranged on the bottom plate, the bottom plate is provided with a first pushing device for driving the side plate to slide up and down along the slide rail, the encoder is installed on the side plate, a first sliding rod that can slide up and down is arranged on the side of the side plate away from the encoder, a first rack is connected to the first sliding rod, a gear meshing with the first rack is connected to the input end of the encoder, and the height measuring guide wheel is connected to the bottom of the first sliding rod and is driven by the height measuring guide wheel to move up and down, so that the encoder calculates the ground flatness. The bottom of the side plate is provided with a support rod, a roller connecting rod is movably hinged to the end of the support rod away from the side plate, the height measuring guide wheel is rotatably installed at the end of the roller connecting rod, and the support rod is provided with a second pushing device connected to the roller connecting rod and used for pushing the roller connecting rod. The driving device is provided with two driving devices, one of which is connected to the head beam, and the driving device is provided with a mounting seat, the mounting seat is provided with a second sliding rod, the bottom of the second sliding rod is connected to a cutting cutter support, the second sliding rod is provided with a second rack, the mounting seat is provided with an execution encoder having a gear meshing with the second rack connected to the input end, and the execution encoder is electrically connected to the PLC control device. The hydraulic cutting cutter mechanism is further provided with a front support installed on the front side of the sugarcane harvester, the front support is movably hinged with a cutting cutter support for installing the cutting cutter, and the output end of the driving device is connected to the cutting cutter support.

2. The cutter adaptive ground system of claim 1, wherein, The cutting cutter is provided with a tool connecting seat connected to the cutting cutter support, a driving motor is installed on the tool connecting seat, a coupling is installed on the output end of the driving motor, and the cutting cutter is installed on the coupling.

3. The cutter adaptive ground system of claim 2, wherein, The side plate and the mounting seat are provided with a rack protection cover.

4. The cutter adaptive ground system of claim 1, wherein, The values of the encoder and the execution encoder fed back to the PLC control device are consistent.

5. The cutter adaptive ground system of claim 1, wherein, The utility model further comprises a filtering system for filtering the height measuring guide wheel through small ditches and small ridges, and filtering the signal through the PLC control device, so that the driving device will not act.

6. The cutter adaptive ground system of any of claims 1-5, wherein, The side plate is provided with a position sensor for detecting the original position of the first rack when the first pushing device pushes the height measuring guide wheel to move down, and the position sensor is electrically connected to the PLC control device.

7. The cutter adaptive ground system of any of claims 1-5, wherein, ​

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