Self-propelled tobacco ridge perforating machine

Abstract

The utility model provides a self-propelled tobacco ridge perforating machine which comprises a power source, a walking support, a walking speed changing box, a perforating speed changing box, an up-down reciprocating swing mechanism, a perforating drill bit and a drilling driving mechanism, the power source provides power for the walking speed changing box, and the walking speed changing box provides walking power for the walking support. The walking gearbox provides power for the punching gearbox, the punching gearbox provides up-down reciprocating swing driving force for the up-down reciprocating swing mechanism, the up-down reciprocating swing mechanism can drive the punching drill bit to do up-down reciprocating motion, and the drilling driving mechanism is used for driving the punching drill bit to rotate. The perforating machine can automatically walk and perforate, so that the labor intensity of perforating operation can be greatly reduced, further, perforating gaps can be more uniform by controlling the rotating speeds of the walking gearbox and the perforating gearbox, and the tobacco ridge perforating quality can be improved.

Description

Technical Field

[0001] This utility model relates to the field of tobacco seedling transplanting and hole punching technology, specifically a self-propelled tobacco ridge hole punching machine. Background Technology

[0002] Currently, in the tobacco planting industry, tobacco growers generally use transplanting to improve the survival rate of tobacco seedlings. When transplanting tobacco seedlings, it is generally necessary to dig wells (i.e., drill holes) at equal intervals on the prepared tobacco ridges beforehand, and then transplant the tobacco seedlings directly into the wells.

[0003] Currently, the main methods for drilling holes in tobacco ridges are divided into manual drilling and mechanized drilling. Manual drilling is labor-intensive, produces inconsistent drilling quality, and is inefficient. Mechanized drilling cannot effectively guarantee the spacing between holes. For example, Chinese utility model patent CN209732139U discloses a small tobacco ridge mulching hole-drilling machine. When using this machine to drill holes in tobacco ridges, its movement is powered by human labor, which also leads to high labor intensity during long-term operation. In addition, this machine achieves interval drilling by manually moving the frame, and because the positioning ability of manually moving the frame is poor, the spacing between holes is also inconsistent. Utility Model Content

[0004] The purpose of this invention is to provide a self-propelled tobacco row punching machine. This punching machine can automatically walk and punch holes, thus greatly reducing the labor intensity of punching operations. Furthermore, by controlling the speed of the walking gearbox and the punching gearbox, the punching gap can be made more uniform, thereby improving the punching quality of tobacco rows.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a self-propelled tobacco ridge drilling machine, characterized in that it includes a power source, a traveling support, a traveling gearbox, a drilling gearbox, a reciprocating swing mechanism, a drilling drill bit, and a drilling drive mechanism. The power source provides power to the traveling gearbox, the traveling gearbox provides traveling power to the traveling support, and the traveling gearbox provides power to the drilling gearbox. The drilling gearbox provides reciprocating swing driving force to the reciprocating swing mechanism, and the reciprocating swing mechanism can drive the drilling drill bit to perform reciprocating motion. The drilling drive mechanism is used to drive the drilling drill bit to rotate.

[0006] Preferably, the reciprocating swing mechanism includes a first rotating shaft, a second rotating shaft, a first swing rod, a second swing rod, and a third swing rod. The first and second rotating shafts are rotatably arranged from back to front on the upper rear side of the walking bracket. The first power output shaft of the perforated gearbox drives the first rotating shaft to perform circular motion through a first transmission mechanism. The upper part of the first swing rod is fixedly connected to the left end of the first rotating shaft, and the upper part of the second swing rod is fixedly connected to the left end of the second rotating shaft. The front and rear ends of the third swing rod are respectively hinged to the lower parts of the second swing rod and the lower parts of the first swing rod. The lines connecting the axes of the first swing rod, the second swing rod, the third swing rod, the first rotating shaft, and the second rotating shaft form a parallelogram linkage mechanism. The first rotating shaft and the second rotating shaft rotate synchronously through a second transmission mechanism.

[0007] Furthermore, both the first transmission mechanism and the second transmission mechanism are chain transmission mechanisms or synchronous belt transmission mechanisms.

[0008] Furthermore, the drilling drive mechanism includes a drive gear, a speed-increasing gear set, and a bevel gear set. The drive gear is fixedly disposed at the lower part of the first swing rod, and the axis of the drive gear is coaxial with the axis of rotation of the third swing rod around the first swing rod. The speed-increasing gear set includes a third rotating shaft, a first large gear, and a first small gear. The third rotating shaft is rotatably disposed on the upper part of the third swing rod. The first large gear and the first small gear are fixedly disposed at the right end of the third rotating shaft from left to right, and the first small gear meshes with the drive gear. The bevel gear set includes a fourth rotating shaft, a fifth rotating shaft, and a second small gear. The system includes a gear, a first bevel gear, a second bevel gear, and a fourth rotating shaft that is horizontally rotatable on the upper part of the third swing rod. The second pinion is fixedly mounted on the right end of the fourth rotating shaft and meshes with the first large gear. The first bevel gear is fixedly mounted on the left end of the fourth rotating shaft. The fifth rotating shaft is vertically rotatable on the left side wall of the third swing rod. The second bevel gear is fixedly mounted on the upper part of the fifth rotating shaft and meshes with the first bevel gear. The drilling bit is mounted on the lower part of the fifth rotating shaft, and the fifth rotating shaft can drive the drilling bit to rotate synchronously.

[0009] Furthermore, the drilling drive mechanism includes a flexible shaft transmission assembly, which includes a flexible shaft and a flexible shaft sleeve. The flexible shaft is fitted inside the flexible shaft sleeve. The upper end of the flexible shaft is connected to the second power output shaft of the drilling gearbox. The lower end of the flexible shaft sleeve is detachably fixed to the left side wall of the third swing rod. The drilling drill bit is fixedly connected to the lower end of the flexible shaft.

[0010] Furthermore, the power source is a gasoline engine. The gasoline engine and the travel gearbox are fixedly mounted on the travel bracket with their front and rear ends facing each other. The gasoline engine uses a synchronous belt drive to transmit power to the travel gearbox, and the travel gearbox uses a synchronous belt drive to transmit power to the perforated gearbox. A travel drive shaft is provided at the lower part of the travel gearbox, passing through its left and right ends. An active travel mechanism is provided at both the left and right ends of the travel drive shaft. An auxiliary travel mechanism is provided on both the left and right sides of the rear part of the travel bracket.

[0011] Furthermore, the active walking mechanism includes a first walking adjustment sleeve and a first walking wheel. The first walking adjustment sleeve is sleeved on the corresponding end of the walking drive shaft and can be adjusted left and right and positioned relative to the walking drive shaft. The first walking wheel is fixedly disposed at the end of the first walking adjustment sleeve.

[0012] Furthermore, the active walking mechanism includes a second walking adjustment sleeve, a transmission chain, a second walking wheel, and two transmission protective covers. The second walking adjustment sleeve is fitted onto the corresponding end of the walking drive shaft and can be adjusted left and right and positioned relative to the walking drive shaft. The two transmission protective covers are fixedly connected relative to each other. An upper sprocket and a lower sprocket are rotatably arranged inside the two transmission protective covers. The transmission chain is fitted onto the upper sprocket and the lower sprocket. The second walking wheel is fitted onto a first support shaft fitted into the lower sprocket. The second walking adjustment sleeve is fitted into the upper sprocket and can drive the upper sprocket to rotate. A spacing adjustment sleeve is fixedly installed on the outer side of the upper part of the transmission protective cover near the walking drive shaft, and is fitted onto a fixed support sleeve fixedly installed on the walking bracket. The second walking adjustment sleeve can rotate freely relative to the spacing adjustment sleeve.

[0013] Furthermore, the auxiliary walking mechanism includes an adjusting frame, a vertical support rod, and casters. The main crossbar of the adjusting frame is sleeved on the rear crossbar of the walking bracket, and the main crossbar can move left and right and be positioned relative to the rear crossbar. The vertical support rod is vertically sleeved inside the main vertical tube of the adjusting frame, and the vertical support rod can be adjusted up and down and positioned relative to the main vertical tube. The casters are located at the bottom of the vertical support rod.

[0014] Preferably, a driving control handle is provided on the upper part of the drive gearbox.

[0015] The beneficial effects of this utility model are as follows: This utility model enables automated drilling of tobacco ridges, thereby significantly reducing the labor intensity of manual drilling; utilizing a gasoline engine as the power source for both movement and drilling provides greater driving force compared to manual labor, facilitating automatic movement within the tobacco field; by controlling the gears of the walking and drilling gearboxes, the walking speed and the reciprocating frequency of the drilling drill bit can be controlled, allowing for a reasonable match between walking speed and drilling frequency based on the required drilling spacing, resulting in more precise drilling; during the drilling operation, the drilling drill bit maintains high-speed rotation, smoothly tearing the mulch film from the tobacco ridges, thus... This design effectively prevents film entanglement and facilitates hole enlargement by the drilling bit on the upper part of the tobacco ridge. Utilizing the parallelogram operating principle, it ensures the drilling bit remains vertical throughout its reciprocating motion, thus guaranteeing the verticality of the transplanting holes drilled on the tobacco ridge. This facilitates vertical planting of the tobacco seedlings, which in turn facilitates subsequent effective management of the seedlings and the tobacco field. The adjustable span of the first traveling wheel and the universal wheel allows this design to be applied to drilling operations on tobacco ridges of different widths. Furthermore, the vertical adjustment and positioning capability of the vertical support rod allows for adjustment of the drilling depth, thereby improving the quality of the tobacco ridge drilling. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some preferred embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the first specific embodiment of the present utility model;

[0018] Figure 2 This is a side view of the overall structure of the first specific embodiment of the present utility model;

[0019] Figure 3 This is a schematic diagram of the overall structure of the second specific embodiment of the present utility model;

[0020] Figure 4 This is a side view of the overall structure of the second specific embodiment of the present utility model;

[0021] Figure 5 This is a schematic diagram of the structure of a first specific embodiment of the drill bit drive mechanism;

[0022] Figure 6 A schematic diagram of a second specific embodiment of the active walking mechanism;

[0023] Figure 7 for Figure 1 Enlarged view of point A in the middle;

[0024] Figure 8 for Figure 2 Enlarged view at point B in the middle;

[0025] Figure 9 for Figure 3 Enlarged view at point C;

[0026] Figure 10 for Figure 4 Enlarged view at point D;

[0027] In the diagram: 1 Power source, 11 First synchronous belt pulley, 2 Traveling bracket, 21 First traveling adjustment sleeve, 22 First traveling wheel, 23 Second traveling adjustment sleeve, 24 Spacing adjustment sleeve, 25 Second traveling wheel, 26 Transmission protective cover, 261 First support shaft, 27 Fixed support sleeve, 271 Support connecting rod, 28 Rear crossbar, 29 Adjusting frame, 291 Main crossbar, 292 Main vertical pipe, 293 Vertical support rod, 294 Universal wheel, 3 Travel gearbox, 31 Travel drive shaft, 32 First... 1. Synchronous belt, 33. Driving control handle, 4. Drilled gearbox, 41. First power output shaft, 42. Second power output shaft, 43. First transmission sprocket, 51. First support seat, 52. Second support seat, 53. First swing rod, 54. Second swing rod, 55. Third swing rod, 551. Arc-shaped pressure plate, 56. Second transmission sprocket, 6. Drill bit, 71. Drive gear, 72. First pinion, 73. First large gear, 74. Second pinion, 75. First bevel gear, 76. Second bevel gear, 77. Flexible shaft sleeve. Detailed Implementation

[0028] The following will describe specific embodiments and appendices. Figure 1-10 The technical solutions in the embodiments of this utility model are clearly and completely described below. Obviously, the described embodiments are only some preferred embodiments of this utility model, and not all embodiments. Those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0029] This utility model provides a self-propelled tobacco ridge punching machine (such as...) Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the device includes a power source 1, a walking support 2, a walking gearbox 3, a drilling gearbox 4, a reciprocating swing mechanism, a drilling bit 6, and a drilling drive mechanism. In practical applications, the power source 1 provides the walking power for the entire drilling machine, the reciprocating swing power for the reciprocating swing mechanism, and the power to drive the drilling bit 6 for the drilling drive mechanism. The walking support 2 provides stable support for the entire device. The walking gearbox 3 and the drilling gearbox are known mature technologies in the field of mechanical transmission technology, mainly used to achieve adjustable speed output. The power source 1 provides power to the walking gearbox 3, and the walking gearbox 3 provides walking power to the walking support 2. By utilizing the speed adjustment capability of the walking gearbox 3, the linear walking speed of the walking support 2 on the ground can be adjusted. In this specific embodiment, the walking gearbox 3 can... Equipped with two gears, a low-speed gear and a high-speed gear, the travel gearbox 3 provides power to the drilling gearbox 4, which in turn provides the up-and-down reciprocating oscillating driving force to the up-and-down reciprocating oscillating mechanism. The up-and-down reciprocating oscillating mechanism drives the drilling bit 6 to reciprocate up and down. Utilizing the speed adjustment capability of the drilling gearbox 4, the frequency of the up-and-down reciprocating motion of the drilling bit 6 is adjusted, thereby regulating the drilling speed. In practical applications, by adjusting the output speeds of the travel gearbox 3 and the drilling gearbox 4, a reasonable match between the travel speed and the drilling frequency can be achieved, resulting in more evenly distributed holes on the tobacco ridge. The drilling drive mechanism drives the drilling bit 6 to rotate. When the high-speed rotating drilling bit 6 gradually contacts the top of the tobacco ridge, it tears the mulch film at the top of the ridge, allowing subsequent high-speed rotating drilling operations to proceed.

[0030] Based on the above embodiments, the specific implementation of the reciprocating swing mechanism is as follows: The reciprocating swing mechanism includes a first rotating shaft, a second rotating shaft, a first swing rod 53, a second swing rod 54, and a third swing rod 55. The first and second rotating shafts are rotatably arranged from back to front on the upper rear part of the traveling bracket 2. Specifically, the first rotating shaft is rotatably arranged on the first support seat 51, and the second rotating shaft is rotatably arranged on the second support seat 52. The first support seat 51 and the second support seat 52 are fixedly arranged at intervals on the traveling bracket 2. In practical applications, both the first support seat 51 and the second support seat 52 can be composed of a circular tube, and the first and second rotating shafts are rotatably fitted inside the corresponding circular tubes. The drilling... The first power output shaft 41 of the gearbox 4 drives the first rotating shaft to perform circular motion through a first transmission mechanism. The upper part of the first swing rod 53 is fixedly connected to the left end of the first rotating shaft, and the upper part of the second swing rod 54 is fixedly connected to the left end of the second rotating shaft. The front and rear ends of the third swing rod 55 are respectively hinged to the lower parts of the second swing rod 54 and the lower parts of the first swing rod 53. The lines connecting the axes of the first swing rod 53, the second swing rod 54, the third swing rod 55, the first rotating shaft, and the second rotating shaft form a parallelogram linkage mechanism. According to the operating characteristics of the parallelogram linkage mechanism, the first swing rod 53 and the second swing rod 54 are always moving during the process. Maintaining a parallel state, the line connecting the axes of the first and second rotating shafts is also horizontal to the third swing rod 55. Therefore, in practical applications, the horizontal placement characteristic of the third swing rod 55 can be used to maintain the vertical state of the drill bit 5. The first and second rotating shafts rotate synchronously through a second transmission mechanism. In practical applications, both the first and second transmission mechanisms are chain drive mechanisms or synchronous belt drive mechanisms. In this specific embodiment, both the first and second transmission mechanisms are chain drive mechanisms. Specifically, a sprocket is provided at the end of the first power output shaft 41, and a sprocket is provided at the right end of the first rotating shaft. A first transmission chain 42 is sleeved on... When the first power output shaft 41 drives the sprocket to rotate, the first shaft rotates through the transmission of the first transmission chain 42. A sprocket is fixedly installed at the left end of the first shaft and another sprocket is fixedly installed at the left end of the second shaft. A second transmission chain 56 is sleeved on the two sprockets. The rotation of the first shaft is achieved through the transmission of the second transmission chain 56, so that the second shaft and the first shaft rotate synchronously. The synchronous rotation of the first shaft and the second shaft drives the first swing rod 53 and the second swing rod 54 to rotate synchronously and stably in a circular motion. The synchronous circular rotation of the first swing rod 53 and the second swing rod 54 drives the third swing rod 55 to always maintain a horizontal state and perform reciprocating circular motion in the plane.

[0031] Based on the above embodiments, a first specific implementation of the drilling drive mechanism is as follows: The drilling drive mechanism includes a drive gear 71, a speed-increasing gear set, and a bevel gear set. The drive gear 71 is fixedly disposed at the lower part of the first swing rod 53, and the axis of the drive gear 71 is coaxial with the axis of rotation of the third swing rod 55 around the first swing rod 53. During the circular motion of the first swing rod 53, the drive gear 71 performs synchronous circular motion around the axis of the first swing rod 53. The speed-increasing gear set includes a third rotating shaft, a first large gear 73, and a first small gear 72. The third rotating shaft is rotatably disposed at the upper part of the third swing rod 55. The first large gear 73 and the first small gear 72... Small gears 72 are fixedly mounted on the right end of the third rotating shaft from left to right, and the first small gear 72 meshes with the drive gear 71. During the synchronous rotation of the first and second rotating shafts, the third swing rod 55 has a relative rotational motion logic relationship with the first swing rod 53 and the second swing rod 54. Simultaneously, since the first small gear 72 is rotatably mounted on the third swing rod 55, and the drive gear 71 is fixedly mounted on the lower part of the first swing rod 51, when the first swing rod 53 and the second swing rod 54 continuously rotate in a circle, the drive gear 71 can continuously drive the first small gear 72 to rotate. The rotation of the first small gear 72 then drives the first large gear 71. Furthermore, by rationally designing the transmission ratio between the drive gear 71 and the first pinion 72, the rapid rotation of the first large gear 73 can be achieved. The bevel gear set includes a fourth rotating shaft, a fifth rotating shaft, a second pinion 74, a first bevel gear 75, and a second bevel gear 76. The fourth rotating shaft is horizontally rotatably mounted on the upper part of the third swing rod 55. The second pinion 74 is fixedly mounted on the right end of the fourth rotating shaft, and the second pinion 74 meshes with the first large gear 73. The rotation of the first large gear 73 drives the second pinion 74 to rotate. By rationally designing the transmission ratio between the second pinion 74 and the first large gear 73, the high speed of the second pinion 74 can be achieved. The first bevel gear 75 is fixedly disposed at the left end of the fourth rotating shaft. The rotation of the second pinion 74 is achieved by the transmission of the fourth rotating shaft, which enables the first bevel gear 75 to rotate synchronously. The fifth rotating shaft is vertically rotatably disposed on the left side wall of the third swing rod 55. The second bevel gear 76 is fixedly disposed on the upper part of the fifth rotating shaft, and the first bevel gear 75 meshes with the second bevel gear 76. The rotation of the first bevel gear 75 drives the rotation of the second bevel gear 76. The drilling bit 6 is disposed at the lower part of the fifth rotating shaft, and the fifth rotating shaft can drive the drilling bit 6 to rotate synchronously. The rotation of the second bevel gear 76 is achieved by the transmission of the fifth rotating shaft, which enables the drilling bit 6 to rotate.In practical applications, during the synchronous rotation of the first and second rotating shafts, the reciprocating motion of the third swing rod 55 and the rotation drive of the drilling bit 6 are realized. Since the drilling bit 6 is mounted on the third swing rod 55, when the third swing rod 55 drives the rotating drilling bit 6 downward, the drilling bit 6 can perform drilling operations on the top of the tobacco ridge. Simultaneously, as the traveling support 2 moves at a uniform speed, the drilling bit 6 can perform equidistant drilling on the tobacco ridge. Furthermore, to facilitate the adjustment of the drilling depth by adjusting the vertical position of the drilling bit 6, several adjusting holes with equal vertical spacing are provided at the lower part of the fifth rotating shaft. A positioning hole adapted to the adjusting hole is provided on the upper sleeve of the drilling bit 6. The sleeve of the drilling bit 6 is fitted onto the lower part of the fifth rotating shaft, and the position of the drilling bit 6 at the lower part of the fifth rotating shaft is adjusted and fixed by inserting a pin into the positioning hole and the corresponding adjusting hole.

[0032] Based on the above embodiments, a second specific embodiment of the drilling drive mechanism is as follows: The drilling drive mechanism includes a flexible shaft transmission assembly, which includes a flexible shaft and a flexible shaft sleeve 77. The flexible shaft is a commonly used transmission component in the existing mechanical transmission field, such as backpack lawnmowers and concrete vibrators, which use flexible shafts to achieve power transmission. The flexible shaft is sleeved in the flexible shaft sleeve 77. The upper end of the flexible shaft is connected to the second power output shaft 43 of the drilling gearbox 4. The lower end of the flexible shaft sleeve 77 is detachably fixed to the left side wall of the third swing rod 55. The drilling drill bit 6 is fixedly connected to the lower end of the flexible shaft. The second power output shaft 43 can drive the flexible shaft to rotate, and the rotation of the flexible shaft drives the drilling drill bit 6 to rotate. The rotation of the drill bit 6, during which the reciprocating motion of the third swing rod 55 synchronously drives the drill bit 6 to reciprocate up and down, realizes the operation of drilling holes in the tobacco ridge during the downward movement of the drill bit 6. The specific implementation method for the detachable connection between the lower part of the flexible shaft sleeve 77 and the third swing rod 55 is as follows: a fixed arc plate is fixedly installed on the left side wall of the third swing rod 55, and an arc plate 551 is used to press the flexible shaft sleeve 77 into the fixed arc plate. Then, the arc plate 551 and the fixed arc plate are fixedly connected by bolts. By adjusting the height of the lower part of the flexible shaft sleeve 77, the height of the drill bit 6 can be adjusted, thereby assisting in the adjustment of the drilling depth.

[0033] Based on the above embodiments, the power source 1 can be an existing gasoline engine. The gasoline engine and the travel gearbox 3 are fixedly mounted on the travel bracket 2, with the gasoline engine using a synchronous belt drive to transmit power to the travel gearbox 3. The synchronous belt enables stable power transmission, thus facilitating a stable power output from the gasoline engine to the travel gearbox 3. The travel gearbox 3 uses a synchronous belt drive to transmit power to the perforated gearbox 4. The synchronous belt enables stable power transmission, thus facilitating a stable power output from the travel gearbox 3 to the perforated gearbox 4. Specifically, a power output shaft of the gasoline engine is provided with... A first synchronous pulley 11 is provided. A second synchronous pulley and a third synchronous pulley are provided at the power input end of the travel gearbox 3, and the second and third synchronous pulleys are coaxially arranged. A fourth synchronous pulley is provided at the power input end of the perforated gearbox 4. A synchronous belt is sleeved between the first synchronous pulley 11 and the second synchronous pulley. A first synchronous belt 32 is sleeved between the third and fourth synchronous pulleys. A travel drive shaft 31 is provided at the lower part of the travel gearbox 4, passing through its left and right end faces. An active travel mechanism is provided at the left and right ends of the travel drive shaft 31. An auxiliary travel mechanism is provided on both the left and right sides of the rear part of the travel bracket. In existing technologies, gearboxes generally transmit power through their internal gear sets. Because gear transmission is relatively precise, the transmission ratio between the power input end of the travel gearbox 3 and the travel drive shaft 31 is also precise. At the same time, the power input end of the travel gearbox 3 and the drilling gearbox 4 are connected by a synchronous belt, which allows the transmission ratio between the power input ends of the travel drive shaft 31 and the drilling gearbox 4 to be constant. This facilitates the subsequent control of the rotational speed of the power input ends of the travel drive shaft 31 and the drilling gearbox 4 to achieve a reasonable match between the frame movement speed and the up-and-down reciprocating frequency of the drilling bit 6, resulting in a more uniform drilling gap.

[0034] In this specific embodiment, two specific implementations of the active walking mechanism are provided. The first specific implementation of the active walking mechanism is as follows: The active walking mechanism includes a first walking adjustment sleeve 21 and a first walking wheel 22. The first walking adjustment sleeve 21 is sleeved on the corresponding end of the walking drive shaft 31 and can be adjusted and positioned left and right relative to the walking drive shaft 31. Specifically, a plurality of adjustment holes are provided at the end of the walking drive shaft 31, and positioning holes adapted to the adjustment holes are provided on the first walking adjustment sleeve 21. The adjustment and fixation of the first walking adjustment sleeve 21 are realized by using a pin passing through the positioning hole and the corresponding adjustment hole. The first walking wheel 22 is fixedly set at the end of the first walking adjustment sleeve 21. In practical applications, by adjusting the distance between the two first walking wheels 22, the two first walking wheels 22 can move smoothly on both sides of the tobacco ridge with different widths. By controlling the gear of the walking gearbox 3, the rotation speed of the first walking wheel 22 can be controlled, thereby controlling the travel speed of the walking support.

[0035] In the first specific embodiment of the active walking mechanism, the larger the diameter of the first walking wheel 22, the greater the ground clearance of the walking support, which facilitates the walking support's movement above tobacco rows at different heights. However, with the walking drive shaft 31 rotating at a constant speed, the increased diameter of the first walking wheel 22 leads to a greater walking speed for the walking support 2. At this point, with the first power output shaft 41 rotating at a constant speed, the drilling spacing increases, altering the predetermined drilling spacing and causing the drilling to fail to meet the requirements for tobacco seedling transplanting. To ensure the walking support 2 has a high ground clearance while preventing its walking speed from becoming too fast, a second specific embodiment of the active walking mechanism is provided, specifically: the active... The traveling mechanism includes a second traveling adjustment sleeve 23, a transmission chain, a second traveling wheel 25, and two transmission protective covers 26. The second traveling adjustment sleeve 23 is fitted onto the corresponding end of the traveling drive shaft 31 and can be adjusted left and right and positioned relative to the traveling drive shaft 31. Specifically, several adjustment holes are provided on the traveling drive shaft 31, and positioning holes are provided on the second traveling adjustment sleeve 23. A pin is used to pass through the positioning hole and the corresponding adjustment hole to realize the adjustment and fixation of the second traveling adjustment sleeve 23 on the traveling drive shaft 31. The two transmission protective covers 26 are fixedly connected relative to each other. An upper sprocket and a lower sprocket are rotatably arranged inside the two transmission protective covers 26. The transmission chain is fitted onto the corresponding end of the traveling drive shaft 31. On the upper and lower sprockets, the second traveling wheel 25 is fitted onto the first support shaft 261 fitted inside the lower sprocket. The second traveling adjustment sleeve 23 is fitted inside the upper sprocket, and the second traveling adjustment sleeve 23 can drive the upper sprocket to rotate. The rotation of the upper sprocket drives the lower sprocket to rotate through the transmission chain. The rotation of the lower sprocket drives the first support shaft 261 to rotate, and the rotation of the first support shaft 261 drives the second traveling wheel 25 to rotate. A spacing adjustment sleeve 24 is fixedly installed on the outer side of the transmission protective cover 26 near the traveling drive shaft 31, and is installed outside the second traveling adjustment sleeve 23. The second traveling adjustment sleeve 23 can rotate freely relative to the spacing adjustment sleeve 24. Specifically, on the spacing adjustment sleeve 24... A bearing is installed inside the 4-section. The second travel adjustment sleeve 23 is fitted onto the bearing of the spacing sleeve 24. The bearing supports the rotation of the second travel adjustment sleeve 23 relative to the spacing adjustment sleeve 24. The spacing adjustment sleeve 24 is fitted onto a fixed support sleeve 27 fixedly installed on the travel bracket 2. To facilitate the rotation of the second travel adjustment sleeve 23, a bearing is installed at the end of the fixed support sleeve 17 away from the transmission protective cover 26. The second travel adjustment sleeve 23 is fitted into this bearing. To facilitate the movement adjustment and positioning of the spacing adjustment sleeve 24 relative to the fixed support sleeve 27, two pressing bolts are provided on the side wall of the fixed support sleeve 27. The pressing bolts press the spacing adjustment sleeve 24 to achieve its positioning.To secure the fixed support sleeves 27, a support connecting rod 271 is provided between the two fixed support sleeves 27. The support connecting rod 271 is fixedly connected to the traveling bracket, and simultaneously secures the two fixed support sleeves 27. In this specific embodiment, the transmission protective cover is used to elevate the traveling bracket 2, thereby increasing its ground clearance. Simultaneously, the transmission chain enables constant-speed transmission from the traveling drive shaft 31 to the second traveling wheel 25. With a suitable diameter for the second traveling wheel 25, the appropriate traveling speed of the traveling bracket 2 can be controlled.

[0036] Based on the above embodiments, the specific implementation of the auxiliary walking mechanism is as follows: The auxiliary walking mechanism includes an adjusting frame 29, a vertical support rod 293, and casters 294. The main crossbar 291 of the adjusting frame 29 is sleeved on the rear crossbar 28 of the walking bracket 2, and the main crossbar 291 can move left and right and be positioned relative to the rear crossbar 28. Specifically, two pressing bolts for pressing and fixing the main crossbar 291 are provided on the rear crossbar 28. The vertical support rod 293 is vertically sleeved inside the main vertical tube 292 of the adjusting frame 29. The vertical support rod 293 can be adjusted up and down and positioned relative to the main vertical tube 292. Specifically, two pressing bolts are provided on the main vertical tube 292 for pressing and fixing the vertical support rod 293. The universal wheel 294 is located at the bottom of the vertical support rod 293. By adjusting the position of the two main horizontal bars 291 on the rear horizontal bar 28, the two universal wheels 294 can travel on both sides of the tobacco ridge with different widths. By adjusting the position of the vertical support rod 293 inside the main vertical tube 292, the height of the drilling bit 6 can be adjusted.

[0037] To facilitate manual operation of this utility model, a driving control handle 33 is provided on the upper part of the travel gearbox 3.

[0038] In this utility model, "upper", "lower", "front", "back", "left", and "right" are all relative positions used to facilitate the description of positional relationships, and therefore cannot be understood as absolute positions to limit the scope of protection.

[0039] Except for the technical features described in the specification, all other technologies are known to those skilled in the art.

[0040] The preferred embodiments and examples of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments and examples. For those skilled in the art, several improvements and modifications can be made without departing from the concept of the present invention, and these improvements and modifications should also be considered within the protection scope of the present invention.

Claims

1. A self-propelled tobacco ridge perforator characterized by, The device includes a power source, a traveling bracket, a traveling gearbox, a drilling gearbox, a reciprocating swing mechanism, a drilling bit, and a drilling drive mechanism. The power source provides power to the traveling gearbox, which in turn provides traveling power to the traveling bracket and the drilling gearbox. The drilling gearbox provides reciprocating swing driving force to the reciprocating swing mechanism, which drives the drilling bit to reciprocate up and down. The drilling drive mechanism drives the drilling bit to rotate.

2. A self-propelled tobacco row cutter as set forth in claim 1, characterized in that, The reciprocating swing mechanism includes a first rotating shaft, a second rotating shaft, a first swing rod, a second swing rod, and a third swing rod. The first and second rotating shafts are rotatably mounted on the upper rear side of the walking bracket from back to front. The first power output shaft of the perforated gearbox drives the first rotating shaft to perform circular motion through a first transmission mechanism. The upper part of the first swing rod is fixedly connected to the left end of the first rotating shaft, and the upper part of the second swing rod is fixedly connected to the left end of the second rotating shaft. The front and rear ends of the third swing rod are respectively hinged to the lower parts of the second swing rod and the lower parts of the first swing rod. The lines connecting the axes of the first swing rod, the second swing rod, the third swing rod, the first rotating shaft, and the second rotating shaft form a parallelogram linkage mechanism. The first rotating shaft and the second rotating shaft rotate synchronously through a second transmission mechanism.

3. A self-propelled tobacco row cutter as set forth in claim 2, characterized in that, Both the first transmission mechanism and the second transmission mechanism are chain drive mechanisms or synchronous belt drive mechanisms.

4. A self-propelled tobacco row cutter according to claim 2, wherein, The drilling drive mechanism includes a drive gear, a speed-increasing gear set, and a bevel gear set. The drive gear is fixedly mounted on the lower part of the first swing arm, and its axis is coaxial with the axis of rotation of the third swing arm around the first swing arm. The speed-increasing gear set includes a third rotating shaft, a first large gear, and a first small gear. The third rotating shaft is rotatably mounted on the upper part of the third swing arm. The first large gear and the first small gear are fixedly mounted on the right end of the third rotating shaft from left to right, and the first small gear meshes with the drive gear. The bevel gear set includes a fourth rotating shaft, a fifth rotating shaft, and a second small gear. The fourth rotating shaft is horizontally rotatable on the upper part of the third swing rod, and the second pinion is fixedly mounted on the right end of the fourth rotating shaft, meshing with the first large gear; the first pinion is fixedly mounted on the left end of the fourth rotating shaft, and the fifth rotating shaft is vertically rotatable on the left side wall of the third swing rod, with the second pinion fixedly mounted on the upper part of the fifth rotating shaft, meshing with the first pinion; the drilling bit is mounted on the lower part of the fifth rotating shaft, and the fifth rotating shaft can drive the drilling bit to rotate synchronously.

5. A self-propelled tobacco row cutter according to claim 2 wherein, The drilling drive mechanism includes a flexible shaft transmission assembly, which includes a flexible shaft and a flexible shaft sleeve. The flexible shaft is fitted inside the flexible shaft sleeve. The upper end of the flexible shaft is connected to the second power output shaft of the drilling gearbox. The lower end of the flexible shaft sleeve is detachably fixed to the left side wall of the third swing rod. The drilling drill bit is fixedly connected to the lower end of the flexible shaft.

6. A self-propelled row cleaner according to claim 4 or 5, characterised in that, The power source is a gasoline engine. The gasoline engine and the travel gearbox are fixedly mounted on the travel bracket with their front and rear ends facing each other. The gasoline engine uses a synchronous belt drive to transmit power to the travel gearbox. The travel gearbox uses a synchronous belt drive to transmit power to the perforated gearbox. A travel drive shaft is provided at the lower part of the travel gearbox, passing through its left and right ends. An active travel mechanism is provided at the left and right ends of the travel drive shaft. An auxiliary travel mechanism is provided on the left and right sides of the rear part of the travel bracket.

7. A self-propelled tobacco row cutter according to claim 6 wherein, The active walking mechanism includes a first walking adjustment sleeve and a first walking wheel. The first walking adjustment sleeve is sleeved on the corresponding end of the walking drive shaft and can be adjusted left and right and positioned relative to the walking drive shaft. The first walking wheel is fixedly installed at the end of the first walking adjustment sleeve.

8. A self-propelled tobacco row cutter according to claim 6 wherein, The active walking mechanism includes a second walking adjustment sleeve, a transmission chain, a second walking wheel, and two transmission protective covers. The second walking adjustment sleeve is fitted onto the corresponding end of the walking drive shaft and can be adjusted left and right and positioned relative to the walking drive shaft. The two transmission protective covers are fixedly connected relative to each other. An upper sprocket and a lower sprocket are rotatably arranged inside the two transmission protective covers. The transmission chain is fitted onto the upper sprocket and the lower sprocket. The second walking wheel is fitted onto a first support shaft fitted into the lower sprocket. The second walking adjustment sleeve is fitted into the upper sprocket and can drive the upper sprocket to rotate. A spacing adjustment sleeve is fixedly installed on the outer side of the upper part of the transmission protective cover near the walking drive shaft, and is located outside the second walking adjustment sleeve. The second walking adjustment sleeve can rotate freely relative to the spacing adjustment sleeve. The spacing adjustment sleeve is fitted onto a fixed support sleeve fixedly installed on the walking bracket.

9. A self-propelled row cleaner according to claim 7 or 8, characterised in that, The auxiliary walking mechanism includes an adjusting frame, a vertical support rod, and casters. The main crossbar of the adjusting frame is sleeved on the rear crossbar of the walking bracket, and the main crossbar can move left and right and be positioned relative to the rear crossbar. The vertical support rod is vertically sleeved inside the main vertical tube of the adjusting frame, and the vertical support rod can be adjusted up and down and positioned relative to the main vertical tube. The casters are located at the bottom of the vertical support rod.

10. A self-propelled tobacco row cutter according to claim 1 wherein, A driving control handle is installed on the upper part of the drive gearbox.

Images