A conveying mechanism of an industrial hemp cutting and conveying test bed

Abstract

The application discloses a conveying mechanism of an industrial hemp cutting conveying test bed, which can orderly convey stems in a laboratory to simulate the cutting working condition of industrial hemp, so that strength test, fatigue test and other tests of different batches of hemp cutting conveying mechanisms are carried out, and it is guaranteed that the hemp cutting conveying mechanism produced meets the quality requirement; through the setting of two groups of conveying chains, the stems are conveyed in different stress states in opposite rotating directions, so that the hemp cutting conveying mechanism simultaneously copes with different stem states for testing, and the testing efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to an agricultural machinery device, more particularly to a conveying mechanism of an industrial hemp cutting and conveying test bench. BACKGROUND

[0002] At present, the harvesting of industrial hemp and other plants is carried out by a harvester, which is more automatic. The harvester is provided with a cutting and conveying mechanism at the front and a cab at the rear. The cutting and conveying mechanism is provided with a chain conveying assembly, a separating assembly and a cutting assembly from top to bottom. The industrial hemp is guided to the cutting assembly by the separating assembly and cut off at the root. Then the industrial hemp is conveyed to the side by the chain conveying assembly and output directly from the outlet or packed by the packing assembly and then output. The cutting speed of the cutting assembly and the transverse conveying speed of the chain conveying assembly will affect the harvesting quality of the hemp stalks. The hemp stalks are cut by the cutting assembly at different driving speeds of the harvester, which will also affect the harvesting quality of the hemp stalks. Therefore, before the industrial hemp harvester is assembled as a whole, it is necessary to conduct strength test, fatigue test and other tests on different batches of cutting and conveying mechanisms to ensure the use stability and quality of the cutting and conveying mechanisms. In order to achieve the outdoor or real cutting and conveying scene in the laboratory scene, a conveying mechanism for conveying hemp stalks or simulated stalks needs to be designed. SUMMARY

[0003] In view of the deficiencies of the prior art, the purpose of the present application is to provide a conveying mechanism of an industrial hemp cutting and conveying test bench, which is convenient for orderly conveying hemp stalks or simulated stalks and meets the needs of the cutting and conveying mechanism in the laboratory scene, so as to improve the quality of the parts of the harvester and ensure the use stability of different batches of harvesters.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a conveying mechanism of an industrial hemp cutting and conveying test bench, comprising two conveying chains arranged in a ring shape, a driving motor for driving the conveying chains to rotate, and positioning seats for detachably inserting the hemp stalks or simulated stalks arranged in sequence on the conveying chains; the hemp stalks or simulated stalks are inserted into the positioning seats and conveyed to the distal end by the conveying chains when the driving motor is started, and then conveyed back to the proximal end after being cut off by the cutting mechanism of the industrial hemp cutting and conveying test bench at the distal end; the two conveying chains are arranged in two groups arranged in parallel, the motor shaft of the driving motor is connected with a driving gear, the sprockets of the two groups of conveying chains are respectively connected with driven gears, the driving gear is engaged with the driven gears on both sides, and when the driving motor operates, the conveying chains on both sides rotate in opposite directions, so that the hemp stalks or simulated stalks on the two conveying chains are conveyed to the distal end in different stress states.

[0005] As an improvement, the stem conveying mechanism further comprises a moving frame for mounting the conveying chain and the driving motor and a base for setting the moving frame, the base and the moving frame are provided with corresponding positioning holes in the transverse direction, the position of the moving frame and the base is defined by the positioning holes being penetrated by fasteners, the transverse position of the moving frame relative to the base can be adjusted by removing the fasteners, the transverse direction adjustment of the moving frame is perpendicular to the arrangement and running direction of the conveying chain, thereby adjusting the transverse position of the conveying chain, and changing the position of the hemp stems or simulated stems on the conveying chain relative to the cutting mechanism of the industrial hemp cutting and conveying test bed.

[0006] As an improvement, the stem conveying mechanism further comprises a moving frame for mounting the conveying chain and the driving motor and a base for setting the moving frame, the moving frame and the base are connected by transverse sliding rails, and a driving cylinder is arranged on the base and connected to the moving frame to drive the moving frame to slide transversely when started, the transverse sliding direction is perpendicular to the arrangement and running direction of the conveying chain, thereby adjusting the transverse position of the conveying chain, and changing the position of the hemp stems or simulated stems on the conveying chain relative to the cutting mechanism of the industrial hemp cutting and conveying test bed.

[0007] As an improvement, the bottom of the moving frame is provided with rollers.

[0008] As an improvement, the positioning seat comprises a mounting plate, a plug-in cylinder and a bolt, the lower part of the mounting plate extends downward and is mounted on the conveying chain, the upper part of the mounting plate is provided with the plug-in cylinder, the upper part of the mounting plate extends upward and is provided with a nut at the side of the plug-in cylinder, the bolt is screwed on the nut and one end extends into the plug-in cylinder, and the hemp stems or simulated stems in the plug-in cylinder are limited by the bolt when it is screwed into the plug-in cylinder.

[0009] As an improvement, the end of the bolt in the plug-in cylinder is provided with a rubber pressing block larger in size than the bolt.

[0010] As an improvement, the lower part of the conveying chain is provided with a support strip in the arrangement and running direction, the support strip is provided with a through hole in the length direction, the shape of the through hole matches the conveying chain for the conveying chain to pass through and keep stable running, and the upper part of the through hole is open for the upper part of the conveying chain to be exposed.

[0011] The beneficial effects of the present application are that, by arranging the conveying chain and the positioning seat, the stems can be orderly conveyed in the laboratory to simulate the cutting conditions of industrial hemp, thereby performing strength test, fatigue test and other tests on different batches of hemp cutting and conveying mechanisms, to ensure that the hemp cutting and conveying mechanisms produced meet the quality requirements; by arranging two groups of conveying chains to convey the stems in different stress states in opposite rotating directions, the hemp cutting and conveying mechanism can simultaneously cope with different stem states for testing, thereby improving the testing efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 The figure is a perspective view of the structure of the application applied to the industrial hemp cutting and conveying test bed.

[0013] Figure 2 The figure is a perspective view of the structure of the application applied to the industrial hemp cutting and conveying test bed.

[0014] Figure 3 The figure is a perspective view of the structure of the application applied to the industrial hemp cutting and conveying test bed. Figure 1 The figure is a perspective view of the structure of the application applied to the industrial hemp cutting and conveying test bed.

[0015] Figure 4 The figure is a perspective view of the structure of the application applied to the industrial hemp cutting and conveying test bed. DETAILED DESCRIPTION

[0016] The specific embodiments of the application will be described in detail below with reference to the accompanying drawings.

[0017] As shown in Figure 1 , 2 , 3, 4, the specific embodiments of the conveying mechanism of the industrial hemp cutting and conveying test bed of the application include two conveying chains 11 arranged in a ring shape, a driving motor 12 driving the rotation of the conveying chains 11, and positioning seats 13 for the removable insertion of the stems arranged in sequence on the conveying chains 11; the hemp stems or simulated stems are inserted into the positioning seats 13 and conveyed by the conveying chains 11 to the distal end when the driving motor 12 is started, and then conveyed back to the proximal end after being cut off by the cutting mechanism of the industrial hemp cutting and conveying test bed at the distal end; the two conveying chains 11 are arranged in two groups of left and right parallel arrangements, the motor shaft of the driving motor 12 is connected with a driving gear 121, the sprockets of the two groups of conveying chains 11 are respectively connected with driven gears 122, the driving gear 121 is respectively engaged with the driven gears 122 on both sides, and when the driving motor 12 operates, it drives the two sides of the conveying chains 11 to rotate in opposite directions, so that the hemp stems or simulated stems on the two conveying chains 11 are conveyed to the distal end in different stress states.

[0018] The application is used, the test bench is provided with a control module 0, a cutting conveying mechanism 2 and a stem conveying mechanism of the application, the stem conveying mechanism is arranged in front of the cutting conveying mechanism 2; the cutting conveying mechanism 2 comprises a separating component 21, a cutting component 22 and a transverse conveying component 23, the transverse conveying component 23 and the cutting component 22 are sequentially arranged from top to bottom, the conveying chain 11 extends to the position of the cutting component 22, the separating component 21 is arranged in front of the cutting component 22 to guide the hemp stem or the simulated stem to the cutting component 22, the transverse conveying component 23 comprises an upper conveying component 231 and a lower conveying component 232, the upper conveying component 231 and the lower conveying component 232 provide transverse conveying power for the hemp stem or the simulated stem from above, and convey the cut hemp stem or the simulated stem to the side, the cutting component 22 is connected with a second motor 221 for start-stop driving, and the transverse conveying component 23 is connected with a third motor 230 for start-stop driving; the control module 0 is signal-connected to the driving motor 12, the second motor 221 and the third motor 230, and the synchronous start-stop of the driving motor 12, the second motor 221 and the third motor 230 is controlled by an operator at the control module 0, and the rotating speeds of the driving motor 12, the second motor 221 and the third motor 230 are controlled.

[0019] After the operator installs the cutting conveying mechanism 2 to be tested, i.e. the separating component 21, the cutting component 22 and the transverse conveying component 23, behind the stem conveying mechanism of the application, the hemp stem or the simulated stem is inserted into the positioning seat 13 of the stem conveying mechanism, and the positioning seat 13 is arranged in a row in the conveying chain 11, which simulates the hemp plants in the actual situation; with the start of the driving motor 12, the hemp stem or the simulated stem is conveyed to the cutting conveying mechanism 2, and the performance of the separating component 21 is tested first, and when the conveying chain 11 conveys and cooperates with the separating component 21 to guide the stem to the cutting component 22, the cutting component 22 performs the performance test on the cutting of the stem, and the upper stem after cutting is conveyed to the side by the transverse conveying component 23, and the performance of the transverse conveying component 23 is tested; the residual stem root after cutting is conveyed back to the input end of the conveying chain 11, and the operator can replace the stem, and then repeat the test of the required items. Before the test, the operator can adjust the rotating speeds of the driving motor 12, the second motor 221 and the third motor 230 as required through the control module 0, and then adjust the feeding speed of the corresponding conveying chain 11, the cutting speed of the cutting component 22 and the conveying speed of the transverse conveying component 23, so as to obtain the more optimal running speed under different speeds, and then the running speed of each mechanism when the actual harvester cuts hemp can be applied to improve the actual harvesting success rate and harvesting quality; and the cumulative test under different speeds can test the service life of each component and the stability of cumulative operation under a certain intensity, so as to test the quality of the components and balance under different speeds and intensities, so that the components can ensure the harvesting efficiency and quality under the premise of ensuring the running stability.

[0020] As an improvement, on the one hand, a single drive motor 12 can simultaneously drive two sets of conveyor chains 11, effectively controlling component costs and ensuring consistent speeds for both sets of conveyor chains 11, corresponding to different positions of the separating assembly 21 and the cutting assembly 22. On the other hand, by relying on the meshing of the drive gear 121 and the driven gear 122, the rotation directions of the two conveyor chains 11 are different, thus allowing the two conveyor chains 11 to be conveyed to the separating assembly 21 and the cutting assembly 22 under different force states. Due to the different steering methods, the tilting direction of the stems will be different, so that when the stems reach the separating assembly 21 and the cutting assembly 22, the separating assembly 21 and the cutting assembly 22 should be tested under different stem states. When necessary, changing the steering direction of the drive motor 12 can change the rotation direction of the two conveyor chains 11, allowing the separating assembly 21 and the cutting assembly 22 corresponding to the two conveyor chains 11 to be tested under both stem tilting states. Since the separating assembly 21 and the cutting assembly 22 themselves have a certain lateral width, the two sets of conveyor chains 11 set in this way can greatly improve the overall testing efficiency.

[0021] As an improved specific implementation, the stem conveying mechanism also includes a movable frame 14 for mounting the conveyor chain 11 and the drive motor 12, and a base 15 for setting the movable frame 14. The base 15 and the movable frame 14 are provided with corresponding positioning holes 10 in the transverse direction. The positions of the movable frame 14 and the base 15 are limited by fasteners passing through the positioning holes 10. When the fasteners are removed, the transverse position of the movable frame 14 relative to the base 15 can be adjusted. The transverse direction of the movable frame 14 is adjusted to be perpendicular to the arrangement and running direction of the conveyor chain 11, thereby adjusting the transverse position of the conveyor chain 11, so that the position of the hemp stems or simulated stems on the conveyor chain 11 and the cutting mechanism of the industrial hemp cutting and conveying test bench changes.

[0022] like Figure 1As shown, when adjustments are needed, first remove the fasteners to make the movable frame 14 movable on the base 15. Then, manually move the movable frame 14 laterally until it is in place, and then reinstall the fasteners to the corresponding positioning holes 10 to lock the movable frame 14 and the base 15. This adjustment allows the conveyor chain 11 to correspond to different positions of the tillering assembly 21 and the cutting assembly 22, thereby enabling more comprehensive testing of the performance of the tillering assembly 21 and the cutting assembly 22 as needed. For example, if the tillering assembly 21 has a fixed structural position, and there is no guide channel directly opposite the tillering assembly 21 at the stem position, the stem will contact the angled plate of the tillering assembly 21 and be guided to converge into the gradually narrowing guide channel. After adjusting the position of the conveyor chain 11, the state of the stem contacting and being guided at different corresponding positions of the tillering assembly 21 can be simulated, thus enabling more comprehensive performance testing of the tillering assembly 21 and ensuring the performance of its components or accurate installation. For example, in the overall lateral position of the cutting component 22, whether it can stably complete the cutting when the stems arrive at different corresponding positions can be tested, thereby testing the performance and operational stability of the cutting blade in the entire lateral position of the cutting component 22.

[0023] As an improved specific implementation, the stem conveying mechanism also includes a movable frame 14 for mounting the conveyor chain 11 and the drive motor 12, and a base 15 for sliding the movable frame 14. The movable frame 14 and the base 15 are slidably connected by a transverse slide rail 16, and a drive cylinder 17 is provided on the base 15. The drive cylinder 17 is connected to the movable frame 14 and drives the movable frame 14 to slide laterally when started. The direction of the lateral sliding is perpendicular to the arrangement and running direction of the conveyor chain 11, thereby adjusting the lateral position of the conveyor chain 11 and changing the position of the hemp stems or simulated stems on the conveyor chain 11 relative to the cutting mechanism of the industrial hemp cutting and conveying test bench.

[0024] like Figure 2As shown, in another embodiment, by activating the drive cylinder 17, the moving frame 14 slides along the slide rail 16 on the base 15, freeing up labor and achieving lateral movement adjustment of the moving frame 14 through mechanization and automation. This allows the conveyor chain 11 to correspond to different positions of the tillering assembly 21 and the cutting assembly 22, thereby enabling more comprehensive testing of the performance of the tillering assembly 21 and the cutting assembly 22 as needed. For example, the tillering assembly 21 has a fixed structural position. When there is no guide channel directly facing the tillering assembly 21 at the stem position, the stem will contact the angled plate of the tillering assembly 21 and be guided to converge into the gradually narrowing guide channel. After adjusting the position of the conveyor chain 11, the state of stems contacting and being guided at different corresponding positions can be simulated, thereby enabling more comprehensive performance testing of the tillering assembly 21 and ensuring the performance of its components or accurate installation. For example, the cutting assembly 22, in its overall lateral position, can stably complete the cutting when receiving stems from different corresponding positions, thus testing the performance and operational stability of the cutting blade in the entire lateral position of the cutting assembly 22. Preferably, the drive cylinder 17 can be used in conjunction with a solenoid valve. The start and stop of the drive cylinder 17 can be controlled by the start and stop of the solenoid valve, thereby flexibly stopping the moving frame 14 in the required position.

[0025] As an improved implementation, the control module 0 is connected to the drive cylinder 17, allowing the operator to control the start and stop of the drive cylinder 17 via the control module 0. The operator can also select to intermittently start and stop the drive cylinder 17 while the drive motor 12, second motor 221, and third motor 230 are running, thus changing the lateral position of the conveyor chain 11 in real time. In this implementation, the operator can use the control module 0 to control the start and stop of the drive cylinder 17 during operation, adjusting the lateral position of the conveyor chain 11 as it runs. This makes the simulated environment more flexible and realistic. This real-time lateral position adjustment can simulate the swaying of stems by actual wind or irregular stem arrangement due to the growing environment, thereby more comprehensively testing the performance of the cutting conveyor mechanism 2 and achieving the desired testing effect.

[0026] As an improved specific implementation, the bottom of the movable frame 14 is provided with rollers 18.

[0027] like Figure 1 , 2 As shown, by setting the rollers 18, on the one hand, the moving frame 14 is supported as a whole, making the structure stable; on the other hand, the moving frame 14 is less subjected to external resistance when it moves, reducing the pressure and friction between the moving frame 14 and the structure it contacts, making the lateral movement of the moving frame 14 more stable, and reducing wear between components during debugging.

[0028] As an improved specific implementation, the positioning seat 13 includes a mounting plate 131, a tube 132, and a bolt 133. The lower part of the mounting plate 131 extends downward and is mounted on the conveyor chain 11. The tube 132 is provided on the upper part of the mounting plate 131. The upper part of the mounting plate 131 extends upward and a nut 134 is provided on the side of the tube 132. The bolt 133 is screwed onto the nut 134 and one end extends into the tube 132. When the bolt 133 is screwed into the tube 132, it abuts and limits the hemp stem or simulated stem in the tube 132.

[0029] like Figure 3 , 4 As shown, the mounting plate 131 is connected to one section of the conveyor chain 11, thereby evenly distributing positioning seats 13 on the multi-section ring-shaped conveyor chain 11. The insert 132 on the mounting plate 131 forms a structure with a certain depth for stem insertion, allowing the stem root to be inserted and limited. The bolt 133 on the side cooperates with the nut 134, and by rotating, the depth of insertion into the insert 132 can be changed, thereby abutting against the stem root, pressing the stem root firmly and stabilizing it, facilitating subsequent guidance by the dividing assembly 21 and cutting by the cutting assembly 22 without detachment, ensuring stable testing. Its structure is simple, effectively controlling costs and ensuring good fixation of the stem.

[0030] As an improved specific implementation, a rubber pressure block 135 with a size larger than that of the bolt 133 is provided at the end of the bolt 133 located in the insert 132.

[0031] like Figure 4 As shown, the further designed rubber block 135 increases the contact area with the stem by its deformation, thereby improving the stability of the contact limit, and also improves the contact stability by its material.

[0032] As an improved specific implementation, a support bar 111 is provided below the conveyor chain 11 along the arrangement and running direction. The support bar 111 forms a through hole 112 in the length direction. The shape of the through hole 112 matches the conveyor chain 11 so that the conveyor chain 11 can pass through and maintain stable operation therein. The upper part of the through hole 112 is open so that the upper part of the conveyor chain 11 is exposed.

[0033] like Figure 1 , 3As shown, because the stem is inserted into the positioning seat 13, the overall center of gravity is high, and the stem will tilt to one side, thus giving the conveyor chain 11 a lateral turning force, which will affect the stability of the conveyor chain 11. The two ends of the conveyor chain 11 are wrapped around the sprocket, which has high strength, while the middle position of the conveyor chain 11 in the arrangement and running direction is the weakest position, which is very easy to cause instability and accelerated wear due to the turning force, or even damage. The further provided support bar 111, which arranges the conveyor chain 11 by means of its through hole 112, restricts the conveyor chain 11 from turning to both sides with a matching shape without affecting the operation of the conveyor chain 11 along the length direction, thereby ensuring the stability of the conveyor chain 11 in conveying the positioning seat 13 and the stem on it.

[0034] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A conveying mechanism for an industrial hemp cutting and conveying test bench, characterized in that: It includes two conveyor chains (11) arranged in a ring and a drive motor (12) for driving the conveyor chains (11) to rotate. Positioning seats (13) for detachable insertion of stems are arranged on the conveyor chains (11). Hemp stems or simulated stems are inserted into the positioning seats (13) and are conveyed to the far end by the conveyor chains (11) when the drive motor (12) is started. After being cut by the cutting mechanism of the industrial hemp cutting and conveying test bench at the far end, they are conveyed back to the near end. The two conveyor chains (11) are arranged in parallel. The motor shaft of the drive motor (12) is connected to a drive gear (121). The sprockets of the two conveyor chains (11) are respectively connected to driven gears (122). The drive gears (121) mesh with the driven gears (122) on both sides respectively. When the drive motor (12) is running, it drives the conveyor chains (11) on both sides to rotate in opposite directions, so that the hemp stalks or simulated stalks on the two conveyor chains (11) are transported to the far end in different stress states. The stem conveying mechanism (1) also includes a movable frame (14) for mounting the conveyor chain (11) and the drive motor (12) and a base (15) for sliding the movable frame (14). The movable frame (14) and the base (15) are slidably connected by a transverse slide rail (16), and a drive cylinder (17) is provided on the base (15). The drive cylinder (17) is connected to the movable frame (14) and drives the movable frame (14) to slide laterally when started. The direction of the lateral sliding is perpendicular to the arrangement and running direction of the conveyor chain (11), thereby adjusting the lateral position of the conveyor chain (11) and causing the position of the hemp stems or simulated stems on the conveyor chain (11) to change with the cutting mechanism of the industrial hemp cutting and conveying test bench.

2. The conveying mechanism of the industrial hemp cutting and conveying test bench according to claim 1, characterized in that: The bottom of the mobile frame (14) is provided with rollers (18).

3. The conveying mechanism of the industrial hemp cutting and conveying test bench according to claim 1, characterized in that: The positioning seat (13) includes a mounting plate (131), a tube (132), and a bolt (133). The lower part of the mounting plate (131) extends downward and is mounted on the conveyor chain (11). The upper part of the mounting plate (131) is provided with a tube (132). The upper part of the mounting plate (131) extends upward and a nut (134) is provided on the side of the tube (132). The bolt (133) is screwed onto the nut (134) and one end extends into the tube (132). When the bolt (133) is screwed into the tube (132), it abuts and limits the hemp stem or simulated stem in the tube (132).

4. The conveying mechanism of the industrial hemp cutting and conveying test bench according to claim 3, characterized in that: The end of the bolt (133) located in the insert (132) is provided with a rubber pressure block (135) larger than the bolt (133).

5. The conveying mechanism of the industrial hemp cutting and conveying test bench according to claim 1, characterized in that: A support bar (111) is provided below the conveyor chain (11) along the arrangement and running direction. The support bar (111) forms a through hole (112) in the length direction. The shape of the through hole (112) matches the conveyor chain (11) so that the conveyor chain (11) can pass through and maintain stable operation therein. The upper part of the through hole (112) is open so that the upper part of the conveyor chain (11) is exposed.

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