CN111781000A - Test device for conveying and cutting rhizomatic crop stalks - Google Patents
Test device for conveying and cutting rhizomatic crop stalks Download PDFInfo
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- CN111781000A CN111781000A CN202010252723.6A CN202010252723A CN111781000A CN 111781000 A CN111781000 A CN 111781000A CN 202010252723 A CN202010252723 A CN 202010252723A CN 111781000 A CN111781000 A CN 111781000A
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The invention provides a test device for conveying and cutting stems of root crops. The cutting machine comprises a rack assembly, a conveying device, a cutting device, a measurement and control system, a transmission device and a rack assembly; wherein: the conveying device is arranged on the frame assembly and comprises a reel mechanism, a clamping mechanism and a conveying belt assembly; the cutting device is arranged on the frame assembly and comprises a cutting mechanism and a swinging ring mechanism; the transmission device comprises a main transmission box assembly, an intermediate shaft assembly, a first belt pulley assembly and a second belt pulley assembly; the measurement and control system comprises a conveying measurement and control system and a cutting measurement and control system. The device has the advantages of compact structure, complete functions and lower cost, and solves the problems of single function, difficult adjustment, insufficient application range and the like of the conventional stalk conveying and cutting device.
Description
Technical Field
The invention relates to a stem test device, in particular to a test device for conveying and cutting stems of root crops, and belongs to the technical field of agricultural machinery.
Background
The root crops such as beet, peanut, potato, garlic and sweet potato are important economic crops in China, the planting area and the yield are at the first position in the world, the leaves and the stalks are also important industrial raw materials, vegetables and feeds, the nutrition value is very high, and the collection and utilization prospect is wide. Crop stalk conveying and cutting are important processes of the combine harvester in field operation, and the performance of the combine harvester directly influences the harvesting efficiency, the cleaning rate and the damage rate. The conveying device consists of a reel mechanism, a clamping mechanism and a conveying belt mechanism. The stalk to be cut is guided to the cutting device by the reel of the stalk reel mechanism, the lodging stalks are righted in the guiding process, the stalks are supported during cutting to ensure smooth cutting, and the cut stalks are pushed to the stalk clamping mechanism. When the clamping chain of the clamping mechanism grabs the stalks, the cutter starts to cut the stalks, the clamping point is ensured not to be deviated from the front or the back, and the condition that the stalks are upwards drawn and the stalks are toppled to block the clamping channel is avoided. The test parameters of the conveying and cutting of the stalks are also important basis for measuring the harvesting performance, and when the harvesting machine is used for directly operating in the field to obtain the conveying and cutting parameters, the problems of strong harvesting seasonality, large difference in field conditions, poor test repeatability, low data obtaining precision and the like exist.
In recent years, the crop stem conveying and cutting test device has been researched in China. Li Guanming, etc. in order to research the cutting force and cutting power consumption when corn cuts the stalk, a pendulum cutting type stalk cutting test bed is developed, the cutting power consumption is solved according to the measured stalk cutting force continuous change curve, and the influence of the cutting angle, the cutting position, the cutting speed, the stalk skin, the node and other factors on the stalk cutting force and the power consumption is analyzed. Sinking, and the like, firstly, a single-stem cutting test device which is designed by self is adopted to carry out single-stem cutting test analysis on the ramie stems, and the maximum cutting driving force and the cutting power consumption of the ramie in the cutting process of the single stems under different cutting blades and cutting forms are obtained. Simulating the cutting working condition of the potato stems in the field by Xuhong and the like, constructing a potato stem cutting test bed, and carrying out a potato stem cutting contrast test by taking stubble height, cutting edge form, cutter head rotating speed, cutter head inclination angle, blade installation angle and the like as test research objects.
The stalk cutting test devices can complete stalk cutting tests and obtain accurate cutting test parameters, but the stalk conveying operation is less involved, the principles and operation parameters of the stalk poking device, the clamping device and the cutting device are not deeply researched, and the difference from the actual condition of the harvesting operation is large; the test bed cannot adapt to the problems of physiological characteristics of crop stalks and complex planting mode, and has no good solution for the stalks which are exuberant in crop growth and seriously creased and wound; the adaptive capacity of the cutting test bed is weak, the scheme of the cutting test bed is provided only for specific crop stalks, and the diversity of physiological conditions of the crop stalks and the universality of equipment are not considered.
By comprehensively observing the current situation of the test device for conveying and cutting the stems of the root crops, which has complete functions, accords with production practices and has wide application range, is urgently needed.
Disclosure of Invention
In order to overcome the defects of the existing test device for conveying and cutting the stems of the root crops, the invention provides a test device for conveying and cutting the stems of the root crops.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a test device for conveying and cutting stems of rhizome crops comprises a frame assembly, a conveying device, a cutting device, a measurement and control system, a transmission device and a frame assembly; wherein:
the conveying device is arranged on the frame assembly and comprises a reel mechanism, a clamping mechanism and a conveying belt assembly;
the cutting device is arranged on the frame assembly and comprises a cutting mechanism and a swinging ring mechanism;
the transmission device comprises a main transmission box assembly, an intermediate shaft assembly, a first belt pulley assembly and a second belt pulley assembly;
the measurement and control system comprises a conveying measurement and control system and a cutting measurement and control system;
the cutting measurement and control system comprises a cutting variable frequency motor, a coupler II, a torque sensor I, a tension and compression sensor and a coupler I, wherein the output end of the cutting variable frequency motor is connected with a swing ring mechanism through the coupler II, the torque sensor I and the coupler I in sequence, and the tension and compression sensor is simultaneously connected with the cutting mechanism and the swing ring mechanism;
the conveying measurement and control system comprises a conveying variable frequency motor, a coupler III, a coupler IV and a torque sensor II, wherein the conveying variable frequency motor is connected with a main transmission case assembly through the coupler III, the torque sensor II and the coupler IV through a first belt pulley component, and the main transmission case assembly is also connected with a conveying belt assembly through a second belt pulley component.
According to the preferable scheme of the test device for conveying and cutting the rhizomatic crop stalks, the frame assembly comprises a front frame and a rear frame, the front frame is obliquely arranged relative to the rear frame, and an upper connecting seat and a lower connecting seat which are used for being hung on a tractor are arranged on the rear frame.
In the preferable scheme of the test device for conveying and cutting the rhizomes of the rhizomes crops, the seedling pulling mechanism is arranged at the front end of the front rack, and the installation angle of the seedling pulling mechanism is that the included angle alpha =30 degrees with the horizontal plane; the clamping mechanism is arranged at the rear end of the front rack and behind the reel mechanism, and comprises a left reel chain assembly and a right reel chain assembly, and the installation included angle beta of the left reel chain assembly and the right reel chain assembly is =40 degrees; the conveying belt assembly is arranged on the rear rack and is positioned behind the clamping mechanism.
According to the preferable scheme of the test device for conveying and cutting the rhizome crop stalks, the clamping mechanism comprises two groups of clamping chains, pretightening force adjusting rods are arranged on the inner side of each group of clamping chains, the two groups of pretightening force adjusting rods are symmetrically distributed on the left and right, the tooth-shaped angles of the clamping chains are 70 degrees, the pitches are 33mm, and the diameters of the rollers are 10.1 mm.
According to the preferable scheme of the test device for conveying and cutting rhizomatic crop stalks, the conveying belt assembly comprises an installation frame, a driving carrier roller, a driven carrier roller and a flat belt connected with the driving carrier roller and the driven carrier roller, long holes are formed in the shaft ends of the driving carrier roller and the driven carrier roller, an adjusting bolt I and an adjusting bolt II are respectively installed on a vertical beam of the rear support, the adjusting bolt I is in contact with the driving carrier roller, and the adjusting bolt II is in contact with the driven carrier roller.
According to the preferable scheme of the test device for conveying and cutting the rhizomatic crop stalks, the first belt pulley component comprises a belt pulley II, a belt pulley III and a belt II, the belt pulley III is arranged at the output end of the conveying variable frequency motor, the belt pulley II is arranged at the input end of the main transmission box assembly, and the belt pulley II is connected with the belt pulley III through the belt II;
the second belt pulley subassembly includes belt pulley III and belt I, and belt pulley I sets up on the conveyer belt assembly to be connected with belt pulley II through belt I.
According to the preferable scheme of the test device for conveying and cutting the rhizomatic crop stalks, the main transmission box assembly comprises an input shaft, an output shaft, a bevel gear I, a bevel gear II and an output chain wheel, the axes of the input shaft and the output shaft are perpendicular to each other, the bevel gear II and a belt pulley II are coaxially arranged on the input shaft, the output chain wheel and the bevel gear I are coaxially arranged on the output shaft, and the output chain wheel is connected with a chain wheel of the intermediate shaft assembly through a chain.
According to the preferable scheme of the test device for conveying and cutting the rhizomatic crop stalks, the stroke S of the rocker arm of the swing ring mechanism meets the following requirements, namely:
，
in the formula, K is a correction coefficient considering the influence of a size error and a clearance on a stroke, K = 1.02-1.1, α is a swing ring deflection angle, L is a rocker arm length, and S is1Is the moving blade shape stroke of the cutting device.
According to the preferable scheme of the test device for conveying and cutting the rhizomes crops stalks, the rotating speed adjusting range of a conveying variable frequency motor of a conveying measurement and control system is 0-1435r/min, the excitation voltage of a combined torque sensor II is 24V, the output voltage is-5-5V, and the measuring range is 200 N.m;
the cutting measurement and control system has the advantages that the adjusting range of the rotating speed of the cutting variable frequency motor is 0-1435r/min, the exciting voltage of the torque sensor I is 24V, the output voltage is-5-5V, the measuring range is 200N.m, the exciting voltage of the tension and compression sensor is 12V, the output voltage is-5-5V, and the measuring range is 300 kg.
The invention has the advantages that: the potato crop stalks with different diameters and water contents can be conveyed and cut for testing, so that the problem of single variety of crop stalks is solved; the device can perform related tests of conveying and cutting parameters such as different conveying speeds, cutting speed ratios, cutting knife strokes and the like, and solves the problem of difficulty in adjusting the operation parameters of a conveying and cutting test bed; the measurement and control system can record the conveying speed, the cutting force, the conveying power consumption of the test bed, the cutting power consumption, the cutting displacement and the cutting force-displacement relation of the stalks in real time and can be used for analyzing the deformation failure mechanism of the stalks; the test device can also be hung on agricultural machinery for field harvesting operation, and is multipurpose; the testing device has the advantages of compact structure, complete functions and lower cost, and solves the problems of single function, difficult adjustment, insufficient application range and the like of the existing stalk conveying and cutting device.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
FIG. 1 is a schematic structural view of a test device for conveying and cutting stalks of root crops;
FIG. 2 is a front view of a test apparatus for transporting and cutting stalks of root crops;
FIG. 3 is a top view of a test apparatus for transporting and cutting stalks of root crops;
FIG. 4 is a rear view of the test apparatus for transporting and cutting rhizomes of crops;
FIG. 5 is a schematic diagram of the structure of a conveyor belt assembly of the testing apparatus of the present invention;
FIG. 6 is a schematic structural diagram of a cutting mechanism and a cutting measurement and control system of the test device of the invention;
FIG. 7 is a schematic structural view of a conveying measurement and control system of the testing device of the present invention;
FIG. 8 is a schematic structural view of a main transmission case assembly of the testing device of the present invention;
wherein, 10, a reel mechanism, 11, a clamping mechanism, 12, a conveyer belt assembly, 13, a middle shaft assembly, 14, a main transmission box assembly, 15, a cutting measurement and control system, 16, a conveying measurement and control system, 17, a swing ring mechanism, 18, a cutting mechanism, 19, a front bracket, 20, a rear bracket, 101, a left reel chain assembly, 102, a right reel chain assembly, 111, a clamping chain, 112, a pretightening force adjusting rod, 121, a belt pulley I, 122, a driving carrier roller, 123, a driven carrier roller, 124, a flat belt, 125, an adjusting bolt I, 126, an adjusting bolt II, 141, a belt pulley II, 142, a belt I, 1411, an output shaft, 3, a bevel gear I, 1414, an input shaft, 1415, a bevel gear II, 1417, a main transmission box body, 151, a coupling I, 152, a torque sensor I, 153. the coupling II, 154, the cutting variable frequency motor, 155, the cutting motor base, 156, the tension and compression sensor, 161, the conveying motor base, 162, the conveying variable frequency motor, 163, the coupling III, 164, the torque sensor II, 165, the coupling IV, 166, the bearing block, 167, the belt pulley III, 168, the belt II, 201, the upper connecting plate, 202 and the lower connecting base.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate directions
The positional or positional relationship is based on that shown in the drawings and is for convenience of description and simplicity of illustration only
Rather than indicating or implying that the device or element so referred to must have a particular orientation, be constructed and arranged in a particular orientation
Operation, and therefore, should not be construed as limiting the invention. Furthermore, "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1, 2, 3 and 4, a test device for conveying and cutting stalks of root-tuber crops comprises a frame assembly, a conveying device, a cutting device, a measurement and control system, a transmission device and a frame assembly; wherein: the frame assembly comprises a front frame 19 and a rear frame 20; the conveying device is arranged on the frame assembly and comprises a reel mechanism 10, a clamping mechanism 11 and a conveyer belt assembly 12, the reel mechanism 10 is arranged at the front end of the front frame 19, the clamping mechanism 11 is arranged at the rear end of the front frame 19 and is positioned behind the reel mechanism 10, and the conveyer belt assembly 12 is arranged on the rear frame 20 and is positioned behind the clamping mechanism 11; the cutting device is arranged at the front lower part of the frame assembly and comprises a cutting mechanism 18 and a swinging ring mechanism 17; the transmission device comprises a main transmission case assembly 14, an intermediate shaft assembly 13, a first belt pulley assembly and a second belt pulley assembly; the measurement and control system comprises a conveying measurement and control system 16 and a cutting measurement and control system 15, the conveying measurement and control system 16 is arranged below the frame assembly, after power of the conveying measurement and control system is transmitted to the transmission device, the transmission device transmits the power to the clamping mechanism 11 and the conveying belt assembly 12 respectively, the cutting measurement and control system 15 transmits the power to the swing ring mechanism 17, and then the swing ring mechanism 17 drives the cutting mechanism 18 to work. The invention can carry out the test of the influence of different operation parameters such as conveying speed, cutting knife stroke, cutting type and the like on the conveying and cutting performance of the stems aiming at different planting modes, stem diameters and stem cutting high and low positions of the rhizome crops. The measurement and control system can acquire the cutting force, the cutting power and the transmission power of the stalks in real time through the tension and compression sensor and the torque sensor. The device has simple and compact structure and complete functions, can carry out dynamic continuous conveying and cutting tests on different rhizome crop stalks, can be hung on agricultural machinery for field harvesting operation, and solves the problems of single function, difficult adjustment, insufficient application range and the like of the conventional conveying and cutting device.
Referring to fig. 6, the cutting measurement and control system 15 includes a cutting motor base 155, a cutting variable frequency motor 154, a coupler ii 153, a torque sensor i 152, a tension and compression sensor 156 and a coupler i 151, an output end of the cutting variable frequency motor 154 is connected with the swing ring mechanism 17 sequentially through the coupler ii 153, the torque sensor i 152 and the coupler i 151, and the tension and compression sensor 156 is connected with the cutting mechanism 18 and the swing ring mechanism 17 simultaneously.
Referring to fig. 7, the conveying measurement and control system 16 includes a conveying motor base 161, a conveying variable frequency motor 162, a coupling iii 163, a coupling iv 165, and a torque sensor ii 164, the conveying variable frequency motor 162 is connected to the main transmission case assembly 14 through the coupling iii 163, the torque sensor ii 164, and the coupling iv 165 via a first belt pulley component, and the main transmission case assembly 14 is further connected to the conveyor belt assembly 12 through a second belt pulley component.
As shown in fig. 2 and 4, the front frame 19 is obliquely arranged relative to the rear frame, and the rear frame 152 is provided with an upper connecting seat 201 and a lower connecting seat 202 which are used for being hung on a tractor.
As shown in fig. 1, 2 and 3, the reel mechanism 10 is arranged at the front end of the front frame 19, and the installation angle thereof, namely, the included angle α =30 ° with the horizontal plane; the clamping mechanism 11 is arranged at the rear end of the front frame 19 and behind the reel mechanism 10, and comprises a left reel chain assembly 101 and a right reel chain assembly 102, and the installation included angle beta of the left reel chain assembly 101 and the right reel chain assembly 102 is =40 degrees; the conveyor belt assembly 12 is disposed on the rear frame 20 and behind the clamping mechanism 11.
As shown in fig. 1, 2 and 3, the clamping mechanism 11 includes two sets of clamping chains 111, the tooth form angle of the clamping chains 111 is 70 °, the pitch is 33mm, the diameter of the roller is 10.1mm, the clamping chain is used for reliably clamping the stalks and stably transporting the stalks to the conveyor belt assembly 12, the inner side of each set of clamping chains 111 is provided with pretightening force adjusting rods 112, the two sets of pretightening force adjusting rods 112 are symmetrically distributed left and right, the clamping force of the stalks and the gap of the conveying channel can be automatically adjusted, and reliable clamping and conveying of the crops are ensured.
As shown in fig. 1, 3, 4 and 5, the conveyor belt assembly 12 is installed inside the frame of the frame assembly rear bracket 20, and includes an installation frame 127, a driving idler 122, a driven idler 123 and a flat belt 124 connecting the driving idler 122 and the driven idler 123, both shaft ends of the driving idler 122 and the driven idler 123 are provided with long holes, both front and rear ends of the installation frame 127 are respectively provided with an adjusting bolt i 125 and an adjusting bolt ii 126, the adjusting bolt i 125 contacts with the driving idler 122, and the adjusting bolt ii 126 contacts with the driven idler 123. Power drives a driving carrier roller 122 and a driven carrier roller 123 to rotate through a belt pulley III 167, a belt pulley II 141 and a belt pulley I121, and flat belts 124 are installed on the driving carrier roller and the driven carrier roller to convey crop stalks. The adjusting bolts I125 and II 126 are respectively arranged in holes of the vertical beam of the rear bracket 20, and the adjusting bolts I125 are used for adjusting the tightness of the flat belt 124 and the coaxiality of the driving roller and the driven roller; and the adjusting bolt II 126 is used for adjusting the coaxiality of the driving idler 122 and the driven idler 123. The adjustability of the three positions of the shaft ends of the driving carrier roller 122 and the driven carrier roller 123 ensures that the flat belt 124 does not deviate under high-speed motion and the stalk transportation operation is stable.
Referring to fig. 3, 4 and 5, the first belt pulley assembly comprises a belt pulley ii 141, a belt pulley iii 167 and a belt pulley ii 168, the belt pulley iii 167 is arranged at the output end of the conveying variable frequency motor 162, the belt pulley ii 141 is arranged at the input end of the main transmission box assembly 14, and the belt pulley ii 141 and the belt pulley iii 167 are connected through the belt pulley ii 168; the second belt pulley assembly comprises a belt pulley I121 and a belt pulley I142, wherein the belt pulley I121 is arranged on the conveying belt assembly 12 and is connected with the belt pulley II 141 through the belt pulley I142.
Referring to fig. 8, the main transmission case assembly 14 comprises an input shaft 1414, an output shaft 1412, a bevel gear i 1413, a bevel gear ii 1415 and an output sprocket 1411, wherein the axes of the input shaft 1414 and the output shaft 1412 are perpendicular to each other, the bevel gear ii 1415 and a pulley ii 141 are coaxially arranged on the input shaft 1414, the output sprocket 1411 and the bevel gear i 1413 are coaxially arranged on the output shaft 1412, and the output sprocket 1411 is connected with the sprocket of the intermediate shaft assembly 13 through a chain.
In this embodiment, the stroke S of the rocker arm of the swing ring mechanism should satisfy the following requirements, namely:
，
in the formula, K is a correction coefficient considering the influence of a size error and a clearance on a stroke, K = 1.02-1.1, α is a swing ring deflection angle, L is a rocker arm length, and S is1Is the moving blade shape stroke of the cutting device.
As shown in figure 7, the rotating speed adjusting range of the conveying variable frequency motor 162 of the conveying measurement and control system 16 is 0-1435r/min, a straw conveying test of different reel chain speeds (0-3.23 m/s), clamping chain speeds (0-4.31 m/s) and conveying belt speeds (0-3.98 m/s) can be carried out, the conveying speed of the conveying device can be measured in real time, the excitation voltage of the joint torque sensor II 164 is 24V, the output voltage is-5-5V, the measuring range is 200N.m, and the main shaft torque and the conveying power consumption of the conveying test device can be measured in real time.
Referring to fig. 6, the cutting measurement and control system 15 can adjust the rotating speed of the cutting variable frequency motor 154 within a range of 0-1435r/min, can perform a stalk cutting test at different cutting speeds (0-3.64 m/s), can measure the cutting speed of the cutting mechanism in real time, has a torque sensor I152 excitation voltage of 24V, an output voltage of-5-5V and a range of 200N.m, can measure the main shaft torque and the cutting power consumption of the cutting test device in real time, has a pull pressure sensor 156 excitation voltage of 12V, an output voltage of-5-5V and a range of 300kg, and can measure the cutting force of the cutting mechanism in real time.
The working process of the invention is as follows: different types of cutting mechanisms are selected according to the physiological conditions of crops, namely, different types of blade protectors, cutter fixed blades and cutter movable blades are replaced. And setting the rotating speed of the cutting variable frequency motor 154, namely determining the stalk cutting speed according to the test requirements. The rotating speed of the conveying variable frequency motor 162 is set, and the conveying speed of the stalks is determined according to the test requirements, namely the speed of the reel chain, the speed of the clamping chain and the speed of the conveying belt are determined. When the device works, the torque sensor I152, the torque sensor II 164 and the tension and compression sensor 156 collect test data in real time, and the stalk cutting force, the transmission power, the cutting power and the transmission and cutting main shaft torque curve can be obtained through the received data.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a test device is carried and cut to rhizome class crop stem stalk which characterized in that: the cutting machine comprises a rack assembly, a conveying device, a cutting device, a measurement and control system, a transmission device and a rack assembly; wherein:
the conveying device is arranged on the frame assembly and comprises a reel mechanism (10), a clamping mechanism (11) and a conveying belt assembly (12);
the cutting device is arranged on the frame assembly and comprises a cutting mechanism (18) and a swinging ring mechanism (17);
the transmission device comprises a main transmission box assembly (14), an intermediate shaft assembly (13), a first belt pulley assembly and a second belt pulley assembly;
the measurement and control system comprises a conveying measurement and control system (17) and a cutting measurement and control system (15);
the cutting measurement and control system (15) comprises a cutting variable frequency motor (154), a coupler II (153), a torque sensor I (152), a tension and compression sensor (156) and a coupler I (151), wherein the output end of the cutting variable frequency motor (154) is connected with the swing ring mechanism (17) sequentially through the coupler II (153), the torque sensor I (152) and the coupler I (151), and the tension and compression sensor (156) is simultaneously connected with the cutting mechanism (18) and the swing ring mechanism (17);
the conveying measurement and control system (16) comprises a conveying variable frequency motor (162), a coupler III (163), a coupler IV (165) and a torque sensor II (164), the conveying variable frequency motor (162) is connected with a main transmission box assembly (14) through the coupler III (163), the torque sensor II (164) and the coupler IV (165) through a first belt pulley component, and the main transmission box assembly (14) is further connected with a conveying belt assembly (12) through a second belt pulley component.
2. The test device for transporting and cutting rhizomatic crop stalks according to claim 1, characterized in that: the frame assembly comprises a front frame (19) and a rear frame (20), the front frame (19) is obliquely arranged relative to the rear frame, and an upper connecting seat (201) and a lower connecting seat (202) which are used for being hung on a tractor are arranged on the rear frame (152).
3. The test device for transporting and cutting rhizomatic crop stalks according to claim 2, characterized in that: the reel mechanism (10) is arranged at the front end of the front frame (19), and the installation angle of the reel mechanism, namely the included angle alpha =30 degrees with the horizontal plane; the clamping mechanism (11) is arranged at the rear end of the front rack (19) and behind the reel mechanism (10), and comprises a left reel chain assembly (101) and a right reel chain assembly (102), and the installation included angle beta =40 degrees between the left reel chain assembly (101) and the right reel chain assembly (102); the conveying belt assembly (12) is arranged on the rear rack (20) and is positioned behind the clamping mechanism (11).
4. The test device for transporting and cutting rhizomatic crop stalks according to claim 1, characterized in that: the clamping mechanism (11) comprises two groups of clamping chains (111), a pretightening force adjusting rod (112) is arranged on the inner side of each group of clamping chains (111), the two groups of pretightening force adjusting rods (112) are symmetrically distributed left and right, the tooth form angle of each clamping chain (111) is 70 degrees, the pitch is 33mm, and the diameter of each roller is 10.1 mm.
5. The test device for transporting and cutting rhizomatic crop stalks according to claim 2, characterized in that: conveyer belt assembly (12) are including mounting bracket (127), drive bearing roller (122), driven bearing roller (123) and connection drive bearing roller (122), flat band (124) of driven bearing roller (123), mounting bracket (127) set up in back frame (20), drive bearing roller (122) and driven bearing roller (123) axle head all open the slot hole, adjusting bolt I125 and adjusting bolt II 126 are installed respectively on the perpendicular roof beam of back support (20), adjusting bolt I (125) and driven bearing roller (122) contact, adjusting bolt II (126) and drive bearing roller (123) contact.
6. The test device for transporting and cutting rhizomatic crop stalks according to claim 1, characterized in that:
the first belt pulley component comprises a belt pulley II (141), a belt pulley III (167) and a belt II (168), the belt pulley III (167) is arranged at the output end of the conveying variable frequency motor (162), the belt pulley II (141) is arranged at the input end of the main transmission box assembly (14), and the belt pulley II (141) and the belt pulley III (167) are connected through the belt II (168);
the second belt pulley assembly comprises a belt pulley I (121) and a belt I (142), wherein the belt pulley I (121) is arranged on the conveying belt assembly (12) and is connected with the belt pulley II (141) through the belt I (142).
7. The test device for transporting and cutting rhizomatic crop stalks according to claim 1, characterized in that: the main transmission case assembly (14) comprises an input shaft (1414), an output shaft (1412), a bevel gear I (1413), a bevel gear II (1415) and an output chain wheel (1411), wherein the axis of the input shaft (1414) is vertical to the axis of the output shaft (1412), the bevel gear II (1415) and a belt pulley II (141) are coaxially arranged on the input shaft (1414), the output chain wheel (1411) and the bevel gear I (1413) are coaxially arranged on the output shaft (1412), and the output chain wheel (1411) is connected with a chain wheel of the intermediate shaft assembly (13) through a chain.
8. The test device for transporting and cutting rhizomatic crop stalks according to claim 1, characterized in that: stroke of rocker arm of swing ring mechanismSThe following requirements should be met, namely: ,
in the formula (I), the compound is shown in the specification,Kto account for the dimensional error and the correction factor of the clearance effect on the stroke,K=1.02~1.1，αin order to change the deflection angle of the swinging ring,Lthe length of the rocker arm is the length of the rocker arm,S 1 is the moving blade shape stroke of the cutting device.
9. The test device for transporting and cutting rhizomatic crop stalks according to claim 1, characterized in that:
the rotating speed adjusting range of a conveying variable frequency motor (162) of the conveying measurement and control system (16) is 0-1435r/min, the excitation voltage of a combined torque sensor II (164) is 24V, the output voltage is-5-5V, and the measuring range is 200 N.m;
the rotating speed adjusting range of a cutting variable frequency motor (154) of the cutting measurement and control system (15) is 0-1435r/min, the excitation voltage of a torque sensor I (152) is 24V, the output voltage is-5-5V, the measuring range is 200N.m, the excitation voltage of a tension and compression sensor (156) is 12V, the output voltage is-5-5V, and the measuring range is 300 kg.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010252723.6A CN111781000A (en) | 2020-04-02 | 2020-04-02 | Test device for conveying and cutting rhizomatic crop stalks |
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| CN202010252723.6A CN111781000A (en) | 2020-04-02 | 2020-04-02 | Test device for conveying and cutting rhizomatic crop stalks |
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| CN111781000A true CN111781000A (en) | 2020-10-16 |
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| CN202010252723.6A Pending CN111781000A (en) | 2020-04-02 | 2020-04-02 | Test device for conveying and cutting rhizomatic crop stalks |
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| CN (1) | CN111781000A (en) |
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| CN112540020A (en) * | 2020-11-30 | 2021-03-23 | 江苏大学 | Leaf class vegetables cutting mechanical properties testing arrangement |
| CN112857942A (en) * | 2021-02-25 | 2021-05-28 | 张家口市农业科学院(河北省高寒作物研究所) | Wheat crop stem wall cutting device and method for measuring thickness of stem wall |
| CN113008777A (en) * | 2021-03-05 | 2021-06-22 | 肖宗源 | Cutting force test jig under different circumstances of maize stalk |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112540020A (en) * | 2020-11-30 | 2021-03-23 | 江苏大学 | Leaf class vegetables cutting mechanical properties testing arrangement |
| CN112857942A (en) * | 2021-02-25 | 2021-05-28 | 张家口市农业科学院(河北省高寒作物研究所) | Wheat crop stem wall cutting device and method for measuring thickness of stem wall |
| CN113008777A (en) * | 2021-03-05 | 2021-06-22 | 肖宗源 | Cutting force test jig under different circumstances of maize stalk |
| CN113008777B (en) * | 2021-03-05 | 2023-09-19 | 安徽四惠电缆有限公司 | Cutting dynamics test frame under different situations of maize stalk |
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