Chinese yam grooving machine

Abstract

The invention discloses a Chinese yam grooving machine, and belongs to the technical field of crop planting, the Chinese yam grooving machine comprises a rack, and two parallel rotor units are rotatably mounted on the rack; the speed reducer is fixed on the rack and is connected with a power source, a driving chain wheel is fixed on an output shaft of the speed reducer, a transmission shaft is rotationally mounted on the rack, a driven chain wheel is fixed on the transmission shaft, and a chain is wound on the driving chain wheel and the driven chain wheel. The two rotor units are designed, the rotor units are stably driven to rotate through the speed reducer, the transmission shaft, the chain and other transmission parts, the two spiral blades conduct grooving on the ground at the same time, two grooves are formed at a time, and compared with traditional manual grooving, the grooving efficiency is greatly improved; according to the tensioning adjusting mechanism designed by the invention, the tensioning degree of the chain can be finely adjusted according to actual requirements, so that poor meshing and vibration caused by overlarge sag of the chain are avoided, meanwhile, the meshing wrap angle of the chain and the chain wheel is increased, and the transmission reliability and stability are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of crop planting, and in particular to a yam slotting machine. Background Art

[0002] Grooving is an important step in the planting and harvesting of yam. Traditional yam grooving methods mostly rely on manual operation, which is not only inefficient but also labor-intensive and cannot meet the needs of modern agricultural production. In order to improve the efficiency and accuracy of yam grooving, some mechanized yam grooving equipment has gradually appeared on the market.

[0003] However, there are still some problems in the use of existing yam slotting machines. First, the transmission system of some equipment is not stable enough, which easily leads to chain loosening or breaking, affecting the continuity and uniformity of slotting. Secondly, the lubrication system of some equipment is not perfect, and the chain is easy to wear during long-term operation, shortening the service life of the equipment. Summary of the invention

[0004] In view of the above-mentioned technical deficiencies, the purpose of the present invention is to provide a yam slotting machine that can slot two grooves at the same time, improve the slotting efficiency, and run more stably, thereby at least solving some of the problems in the prior art.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solution: The present invention provides a yam slotting machine, comprising: A frame, on which two parallel rotor units are rotatably mounted, wherein the rotor units include a rotor shaft and a spiral blade fixed on the rotor shaft; A reducer, the reducer is fixed on the frame, the reducer is connected to a power source, a driving sprocket is fixed on the output shaft of the reducer, a transmission shaft is rotatably mounted on the frame, a driven sprocket is fixed on the transmission shaft, a chain is wound around the driving sprocket and the driven sprocket, and the transmission shaft is drivingly connected to two rotor shafts; A tensioning adjustment mechanism is arranged on the frame and is used for adjusting the tension of the chain. The tensioning adjustment mechanism comprises a tensioning roller and a tensioning frame. The tensioning frame is provided with an adjustment slot. The tensioning roller is rotatably installed in the adjustment slot through a positioning structure and rests against the chain. A cavity is arranged in the tensioning roller, and lubricating oil is contained in the cavity. A liquid outlet hole connected to the cavity is arranged on the roller surface of the tensioning roller, and a liquid outlet control structure for controlling the liquid outlet state of the liquid outlet hole is arranged in the tensioning roller.

[0006] Preferably, the tension roller comprises: A roller, wherein the cavity is disposed in the roller, and one end of the roller is open and the other end is closed; A first end cover and a second end cover, wherein the first end cover is fixed to the closed end of the roller, and the second end cover is fixed to the open end of the roller and seals the open end, and roller shafts are fixed to the first end cover and the second end cover.

[0007] Preferably, the liquid outlet control mechanism comprises: A radial flow channel, the radial flow channel is opened on the roller and communicated with the cavity, a liquid outlet flow channel is opened on the side wall of the radial flow channel, and the liquid outlet flow channel is communicated with the liquid outlet hole; A blocking block, wherein the blocking block is slidably mounted in the radial flow channel, a spring is arranged at one end of the blocking block away from the cavity, a stopper is arranged in the radial flow channel on the side of the spring away from the blocking block, the blocking block comprises a first blocking portion, a second blocking portion and a connecting flow channel, the connecting flow channel is located between the first blocking portion and the second blocking portion and is connected to the cavity; When the first blocking portion or the second blocking portion cooperates with the liquid outlet channel, the liquid outlet channel is separated from the cavity; when the connecting channel cooperates with the liquid outlet channel, the liquid outlet channel is connected to the cavity.

[0008] Preferably, an adjusting block is provided in the radial flow channel on a side of the stopper away from the spring, and the adjusting block is used to adjust the position of the stopper in the radial flow channel.

[0009] Preferably, a push plate is slidably installed in the first end cover, a push pin is fixed on the push plate, a guide hole connected to the radial flow channel is opened in the roller, the push pin passes through the guide hole and is fixedly connected to the adjustment block, and the adjustment block and the stopper are both provided with inclined surfaces. When the push plate moves in the first end cover, the adjustment block pushes the stopper to move in the radial flow channel.

[0010] Preferably, the frame comprises: A crossbeam, wherein two ends of the crossbeam are respectively fixed with a main handrail frame and an auxiliary handrail frame, and two ends of the rotor shaft are respectively rotatably mounted on the main handrail frame and the auxiliary handrail frame, and a control handrail is fixed on the top of the main handrail frame; The chassis is fixed on a side of the main handrail frame away from the auxiliary handrail frame, the transmission shaft is rotatably installed under the chassis, and a mounting frame for mounting a reducer is fixed on the chassis.

[0011] Preferably, anchor pins are fixed to the bottom of the main handrail frame and the auxiliary handrail frame, and the anchor pins are used for positioning when grooving.

[0012] Preferably, a plurality of alloy cutter heads are welded on the spiral blade.

[0013] Preferably, the positioning structure comprises a slider, the slider is slidably mounted in the adjustment slot, the roller shaft of the tensioning roller is rotatably mounted on the slider, and the slider is fixed to the tensioning frame by bolts.

[0014] Preferably, a rubber pad is fixed in the liquid outlet hole, and a plurality of liquid outlet micropores are formed on the rubber pad.

[0015] The beneficial effects of the present invention are: The present invention designs two rotor units, and drives the rotor units to rotate smoothly through transmission components such as a reducer, a transmission shaft and a chain, and the two spiral blades groove the ground at the same time, two grooves are grooved at a time, which greatly improves the grooving efficiency compared with traditional manual grooving; the tensioning adjustment mechanism designed in the present invention can fine-tune the tension of the chain according to actual needs, thereby avoiding poor meshing and vibration caused by excessive chain sag, and at the same time increasing the meshing angle between the chain and the sprocket, ensuring the reliability and stability of the transmission; the present invention further designs a lubrication structure for the chain, designs a cavity and a liquid outlet on the tensioning roller, and further designs a liquid outlet control structure, so that the tensioning roller can lubricate the chain while tensioning the chain, and starts to discharge the lubricating oil when the chain starts to rotate and ends the transmission, which not only ensures the lubrication effect of the chain, but also avoids the waste of the lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A three-dimensional diagram of a yam slotting machine provided in an embodiment of the present invention.

[0018] Figure 2 It is a top view of the present invention.

[0019] Figure 3 It is a front view of the present invention.

[0020] Figure 4 for Figure 3 Cross-sectional view at AA in the middle.

[0021] Figure 5 It is a schematic diagram of the cooperation between the tensioning roller and the chain of the present invention.

[0022] Figure 6 It is a cross-sectional view of the tensioning roller of the present invention.

[0023] Figure 7 for Figure 6 A partial enlarged view of point A in the middle.

[0024] Figure 8It is a schematic diagram of the connecting flow channel and the liquid outlet flow channel of the present invention being connected.

[0025] Fig. 9 It is a schematic diagram of the cooperation between the second blocking portion and the liquid outlet channel of the present invention.

[0026] Description of reference numerals: 1. Auxiliary handrail, 2. Crossbeam, 3. Left rotor, 301, left spiral blade, 302, left rotor shaft, 4. Right rotor, 401, right spiral blade, 402, right rotor shaft, 5. Alloy cutter head, 6. Main handrail, 7. Fixing bolt, 8. Anchor pin, 9. Bearing seat, 10. Tensioning frame, 11. Driven sprocket, 12. Gearbox, 13. Chassis, 14. Tensioning roller, 15. Chain, 16. Mounting frame, 17. Drive sprocket, 18. Reducer, 19. Power source, 20. Cover Shell, 21. Control armrest, 22. Adjusting groove, 23. Cavity, 24. Liquid outlet, 25. Roller, 26. First end cover, 27. Second end cover, 28. Roller, 29. Radial flow channel, 30. Liquid outlet channel, 31. Block, 311. First blocking part, 312. Second blocking part, 313. Connecting flow channel, 32. Spring, 33. Stopper, 34. Adjusting block, 35. Push plate, 36. Ejector pin, 37. Guide hole, 38. Slider, 39. Rubber pad, 40. Adjusting screw. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Embodiment 1: like Figures 1 to 9As shown, the first embodiment of the present invention provides a yam slotting machine for making grooves in the field before planting yam. The yam slotting machine designed by the present invention is mainly composed of a frame, two parallel rotor units, a reducer 18, a tensioning adjustment mechanism and other parts. The frame, as an integral supporting structure, includes two main parts: a crossbeam 2 and a chassis 13. Among them, the two ends of the crossbeam 2 are respectively fixed with a main handrail frame 6 and a secondary handrail frame 1, and the bottoms of the main handrail frame 6 and the secondary handrail frame 1 are fixed with two bearing seats 9 through fixing bolts 7. The two rotor units are parallel to the crossbeam 2. The two rotor units are respectively a left rotor 3 and a right rotor 4, wherein the left rotor 3 includes a left rotor shaft 302 and a left spiral blade 301 fixed on the left rotor shaft 302, and the right rotor 4 includes a right rotor shaft 402 and a right spiral blade 401 fixed on the right rotor shaft 402. The two ends of the left rotor shaft 302 and the right rotor shaft 402 are respectively installed in the bearing seats 9 on the main handrail frame 6 and the secondary handrail frame 1. In order to improve the cutting effect on the ground, a plurality of alloy cutter heads 5 are evenly spaced and fixed on the edges of the right spiral blade 401 and the left spiral blade 301. In order to prevent the frame from shifting during slotting, the present invention also fixes anchor pins 8 at the bottom of the main handrail frame 6 and the auxiliary handrail frame 1. The anchor pins 8 can be inserted into the ground for positioning to prevent the frame from shifting during the slotting process.

[0029] A control handrail 21 is also fixed on the top of the main handrail frame 6 to facilitate the operator to control the machine. The chassis 13 is fixed on the side of the main handrail frame 6 away from the auxiliary handrail frame 1, and a mounting frame 16 for mounting a reducer 18 is fixed on it. The reducer 18 is firmly fixed on the mounting frame 16 by bolts or other fasteners. A power source 19 is fixed on one side of the reducer 18. A transmission shaft is rotatably installed under the chassis 13, and the two ends of the transmission shaft are respectively connected to the two rotor shafts through a gear box 12. The gear box 12 contains a bevel gear set, and the two bevel gears of the bevel gear set are respectively fixed on the rotor shaft and the transmission shaft. The transmission shaft is connected to the output shaft of the reducer 18 through a chain transmission mechanism. In this way, when the power source 19 such as a diesel engine is started, the transmission shaft and the two rotor shafts can be driven to rotate through the reducer 18 and the chain transmission mechanism, so that the spiral blades can groove the ground.

[0030] The chain transmission mechanism of the present invention comprises a driving sprocket 17 fixed on the output shaft of a speed reducer 18, a driven sprocket 11 fixed on the transmission shaft, and a chain 15 wound around the driving sprocket 17 and the driven sprocket 11. In order to improve safety, a cover 20 is also fixed on the frame, and the cover 20 is used to cover the chain transmission mechanism.

[0031] In order to ensure the stability and reliability of the chain 15 transmission, the present invention designs a tension adjustment mechanism. Figure 1 and Figure 3As shown, the tension adjustment mechanism includes a tension roller 14 and a tension frame 10, and the tension frame 10 is fixed on the frame. An adjustment slot 22 is provided on the tension frame 10, and the tension roller 14 is rotatably mounted on a slider 38 through a bearing, and the slider 38 is slidably mounted in the adjustment slot 22. The slider 38 can be fixed to the tension frame 10 by bolts, so that the position of the tension roller 14 can be fine-tuned along the adjustment slot 22, so that the tension roller 14 can resist the drooping part of the chain 15, avoid poor meshing and vibration caused by excessive droop of the chain 15, and increase the meshing angle between the chain 15 and the sprocket.

[0032] Considering that the chain transmission mechanism needs to be lubricated and maintained frequently, the present invention also designs a lubrication structure. The lubrication structure designed in the present invention is cleverly combined with the tensioning roller 14 to lubricate the chain 15 when the tensioning roller 14 rotates. Specifically, Figure 6 As shown, the tension roller 14 designed by the present invention includes a roller 25, a first end cover 26 and a second end cover 27. One end of the roller 25 is open and the other end is closed to form a cavity 23. The first end cover 26 and the second end cover 27 are respectively fixed to the closed end and the open end of the roller 25 by bolts. A sealing ring is arranged between the second end cover 27 and the roller 25 to seal the open end. At the same time, a roller shaft 28 is fixed to the first end cover 26 and the second end cover 27. The roller shaft 28 is rotatably mounted on a slider 38 so that the tension roller 14 can rotate with the chain 15. Lubricating oil is contained in the cavity 23. A liquid outlet 24 connected to the cavity 23 is provided on the roller surface of the roller 25. A rubber pad 39 is fixed in the liquid outlet 24. The rubber pad 39 is provided with a plurality of liquid outlet micropores. The lubricating oil can be discharged from the liquid outlet 24 and applied to the chain 15 by means of the liquid outlet micropores on the rubber pad 39. The rubber pad 39 can increase the contact between the lubricating oil and the chain 15, and better coat the lubricating oil, while the liquid outlet micropores can reduce the flow rate of the lubricating oil, and prevent the lubricating oil from being thrown away quickly.

[0033] Embodiment 2: like Figures 6 to 9 As shown, based on the first embodiment, in order to control the discharge state of the lubricating oil and avoid the situation where the lubricating oil is consumed too quickly due to a large amount of continuous discharge, the present invention designs a discharge control structure. The structure includes components such as a radial flow channel 29, a block 31 and a spring 32. The radial flow channel 29 is opened on the roller 25 along the radial direction of the roller 25 and is connected to the cavity 23. A liquid discharge channel 30 is opened on the side wall of the radial flow channel 29. The liquid discharge channel 30 is arranged obliquely and is connected to the liquid discharge hole 24.

[0034] like Figure 7As shown, the block 31 is slidably installed in the radial flow channel 29, and a spring 32 is provided at one end of the block 31 away from the cavity 23, and a stopper 33 is provided in the radial flow channel 29 on the side of the spring 32 away from the block 31. When the position of the stopper 33 is restricted, the spring 32 pushes the block 31 against the step of the radial flow channel 29 close to the cavity 23 by elastic force. The block 31 has a first blocking portion 311, a second blocking portion 312 and a connecting flow channel 313, the first blocking portion 311 and the second blocking portion 312 are in sliding sealing cooperation with the radial flow channel 29, and the connecting flow channel 313 is located between the first blocking portion 311 and the second blocking portion 312 and is connected with the cavity 23.

[0035] When the yam slotting machine is not started, Figure 7 As shown, the spring 32 presses against the block 31, so that the first blocking portion 311 closes the liquid outlet channel 30, which separates the liquid outlet channel 30 from the cavity 23, and the lubricating oil in the cavity 23 cannot flow out from the liquid outlet hole 24, thereby avoiding the lubricating oil from flowing out and wasting. When the power source 19 is started and the speed of the chain 15 gradually increases, the tensioning roller 14 rotates, and the block 31 is affected by the centrifugal force and moves to the side away from the cavity 23, that is, compressing the spring 32, which makes the connecting channel 313 communicate with the liquid outlet channel 30, so that the liquid outlet channel 30 communicates with the cavity 23, so that the lubricating oil can flow out from the liquid outlet hole 24 to lubricate the chain 15. When the chain 15 reaches the operating speed, due to the high speed of the tensioning roller 14, the blocking block 31 is subjected to a greater centrifugal force, further compressing the spring 32, so that the second blocking portion 312 cooperates with the liquid outlet channel 30 to block the liquid outlet channel 30, so that the lubricating oil cannot reach the liquid outlet 24 from the cavity 23, thereby avoiding the problem of lubricating oil flowing out when the tensioning roller 14 continues to rotate at a high speed during the grooving process, resulting in excessive consumption.

[0036] Embodiment three: On the basis of the second embodiment, in order to further adjust the matching relationship between the liquid discharge and the rotation speed according to the actual rotation speed, the present invention further provides an adjustment block 34 in the radial flow channel 29 on the side of the block 33 away from the spring 32, and the adjustment block 34 can adjust the position of the block 33 in the radial flow channel 29, thereby changing the initial compression degree of the spring 32, and further changing the centrifugal force required for the block 31 to compress the spring 32, and the centrifugal force is positively correlated with the rotation speed of the chain 15, so the matching relationship between the liquid discharge state and the rotation speed of the chain 15 can be changed.

[0037] In order to realize the movement of the adjustment block 34, as Figure 6 and Figure 7As shown, the present invention has a push plate 35 slidably mounted in the first end cover 26, a push pin 36 is fixed on the side of the push plate 35 close to the roller 25, and a guide hole 37 vertically connected to the radial flow channel 29 is opened in the roller 25, and the adjustment block 34 is slidably mounted in the guide hole 37 and partially in the radial flow channel 29. The push pin 36 passes through the guide hole 37 and is fixedly connected to the adjustment block 34. The adjustment block 34 and the stopper 33 are provided with matching inclined surfaces.

[0038] An adjusting screw 40 is also threadedly mounted on the first end cover 26, and the adjusting screw 40 is rotatably matched with the push plate. When the adjusting screw 40 is rotated, the push plate 35 can be driven to move in the first end cover 26, and the adjusting block 34 can be pushed to move through the ejector pin 36, and the adjusting block 34 can then move the stopper 33 toward the blocking block 31, thereby changing the initial compression degree of the spring 32, and adjusting the matching relationship between the lubricating oil discharge state and the rotation speed of the chain 15.

[0039] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A yam slotting machine, characterized in that: include: A frame, on which two parallel rotor units are rotatably mounted, wherein the rotor units include a rotor shaft and a spiral blade fixed on the rotor shaft; A reducer (18), the reducer (18) being fixed on a frame, the reducer (18) being connected to a power source (19), a driving sprocket (17) being fixed on an output shaft of the reducer (18), a transmission shaft being rotatably mounted on the frame, a driven sprocket (11) being fixed on the transmission shaft, a chain (15) being wound around the driving sprocket (17) and the driven sprocket (11), and the transmission shaft being in driving connection with two rotor shafts; A tensioning adjustment mechanism is arranged on a frame and is used to adjust the tension of a chain (15). The tensioning adjustment mechanism comprises a tensioning roller (14) and a tensioning frame (10). The tensioning frame (10) is provided with an adjustment slot (22). The tensioning roller (14) is rotatably mounted in the adjustment slot (22) through a positioning structure and abuts against the chain (15). A cavity (23) is arranged in the tensioning roller (14). Lubricating oil is contained in the cavity (23). A liquid outlet (24) communicating with the cavity (23) is arranged on a roller surface of the tensioning roller (14). A liquid outlet control structure for controlling the liquid outlet state of the liquid outlet (24) is arranged in the tensioning roller (14).

2. A yam slotting machine as claimed in claim 1, characterized in that: The tensioning roller (14) comprises: A roller (25), wherein the cavity (23) is arranged in the roller (25), and one end of the roller (25) is open and the other end is closed; A first end cover (26) and a second end cover (27), wherein the first end cover (26) is fixed to the closed end of the roller (25), and the second end cover (27) is fixed to the open end of the roller (25) and seals the open end, and a roller shaft (28) is fixed to the first end cover (26) and the second end cover (27).

3. A yam slotting machine as claimed in claim 2, characterized in that: The liquid outlet control mechanism comprises: A radial flow channel (29), the radial flow channel (29) being provided on the roller (25) and communicating with the cavity (23), a liquid outlet flow channel (30) being provided on a side wall of the radial flow channel (29), the liquid outlet flow channel (30) being communicating with the liquid outlet hole (24); a blocking block (31), the blocking block (31) being slidably mounted in the radial flow channel (29); a spring (32) being arranged at one end of the blocking block (31) away from the cavity (23); a stopper (33) being arranged in the radial flow channel (29) on the side of the spring (32) away from the blocking block (31); the blocking block (31) comprising a first blocking portion (311), a second blocking portion (312) and a connecting flow channel (313); the connecting flow channel (313) being located between the first blocking portion (311) and the second blocking portion (312) and being connected to the cavity (23); When the first blocking portion (311) or the second blocking portion (312) cooperates with the liquid outlet channel (30), the liquid outlet channel (30) is separated from the cavity (23); when the connecting channel (313) cooperates with the liquid outlet channel (30), the liquid outlet channel (30) is connected to the cavity (23).

4. A yam slotting machine as claimed in claim 3, characterized in that: An adjustment block (34) is provided in the radial flow channel (29) on the side of the stopper (33) away from the spring (32), and the adjustment block (34) is used to adjust the position of the stopper (33) in the radial flow channel (29).

5. A yam slotting machine as claimed in claim 4, characterized in that: A push plate (35) is slidably mounted in the first end cover (26), a push pin (36) is fixed on the push plate (35), a guide hole (37) communicating with the radial flow channel (29) is provided in the roller (25), the push pin (36) passes through the guide hole (37) and is fixedly connected to the adjustment block (34), and both the adjustment block (34) and the stop block (33) are provided with inclined surfaces. When the push plate (35) moves in the first end cover (26), the adjustment block (34) pushes the stop block (33) to move in the radial flow channel (29).

6. A yam slotting machine as claimed in claim 1, characterized in that: The frame comprises: A crossbeam (2), wherein two ends of the crossbeam (2) are respectively fixed with a main handrail frame (6) and a secondary handrail frame (1), two ends of the rotor shaft are respectively rotatably mounted on the main handrail frame (6) and the secondary handrail frame (1), and a control handrail (21) is fixed on the top of the main handrail frame (6); A chassis (13) is fixed to a side of the main handrail frame (6) away from the auxiliary handrail frame (1), the transmission shaft is rotatably mounted below the chassis (13), and a mounting frame (16) for mounting a reducer (18) is fixed to the chassis (13).

7. A yam slotting machine as claimed in claim 1, characterized in that: Anchor pins (8) are fixed to the bottom of the main handrail frame (6) and the auxiliary handrail frame (1), and the anchor pins (8) are used for positioning when grooving.

8. A yam slotting machine as claimed in claim 1, characterized in that: A plurality of alloy cutter heads (5) are welded to the spiral blade.

9. A yam slotting machine as claimed in claim 1, characterized in that: The positioning structure comprises a slider (38), the slider (38) being slidably mounted in the adjustment groove (22), the roller shaft (28) of the tensioning roller (14) being rotatably mounted on the slider (38), and the slider (38) being fixed to the tensioning frame (10) by means of bolts.

10. The yam slotting machine according to claim 1, characterized in that: A rubber pad (39) is fixed in the liquid outlet hole (24), and a plurality of liquid outlet micropores are formed on the rubber pad (39).

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