Intelligent fixed-distance punching equipment for tobacco planting

Abstract

The invention relates to the field of tobacco planting, and discloses an intelligent fixed-distance punching device for tobacco planting, which comprises a power source, a holding shaft and a punching component, the power source is carried by a planter, the holding shaft is held by the planter, the interior of the holding shaft is hollow, and a connecting shaft is arranged in the holding shaft; the output end of the power source is in power connection with the input end of the connecting shaft through a flexible shaft, the punching component comprises a connecting support connected with the holding shaft and a drilling shaft slidably arranged on the connecting support in the vertical direction, a driving shaft is arranged on the connecting support, and the input end of the driving shaft is in power connection with the output end of the connecting shaft. The output end of the driving shaft is in power connection with the drilling shaft through a power transmission piece, a driving assembly is arranged between the driving shaft and the drilling shaft, when the driving shaft rotates, the driving assembly can drive the drilling shaft to move downwards, the rotating speed of the driving shaft is increased progressively, the downward moving distance of the drilling shaft is correspondingly increased progressively, and a drill bit is arranged at the bottom of the drilling shaft.

Description

Technical Field

[0001] The present invention relates to the field of tobacco planting, and specifically relates to an intelligent distance - fixed punching device for tobacco planting. Background Art

[0002] When planting tobacco, it is necessary to transplant tobacco seedlings from the seedling - raising greenhouse to the field. Therefore, it is necessary to punch holes in the field. Based on this search, a Chinese invention patent was found. Its authorized announcement number is CN114846954B, which discloses a tobacco - planting punching device and punching method that is convenient for measuring the spacing. The displacement mechanism drives the drill bit to linearly displace along the punching direction, and while displacing, the rotation mechanism drives the drill bit to rotate. When the drill bit passes through the fixed contact block and several moving contact blocks in sequence, it will drive the drill bit to drill downward to make several drill holes. Although it can achieve equal - spacing drilling, there are still some deficiencies and areas for improvement. Specifically: 1. The tobacco - planting requirements vary for different varieties and regions, and the required punching depths are also different. For example, the punching depth for bare - root seedlings is usually 10 - 15 cm, the depth for plug - tray seedlings is usually 5 - 8 cm, the depth in loose soil is generally 12 - 15 cm, the depth in clay - heavy soil is 8 - 10 cm, and the depths for small and large seedlings are also different. However, the punching depth of this existing patent document is fixed and cannot adapt to different situations, which needs to be improved; 2. When punching, as the hole depth increases, the soil becomes thicker, and the feeding force and rotational speed required for the drill bit to drill downward also need to increase correspondingly. In this patent document, the rotational speed of the drill bit depends on the linear displacement speed of the drill bit along the punching direction, and the punching feeding force depends on the push of the contact block on the slider, which is fixed and cannot achieve the effect of smoothly carrying out the punching work by adapting to the hole depth, and needs to be improved; 3. During the punching process, it is inevitable that the drill - hole path of the drill bit will encounter hard objects, such as stones. In this patent document, the feeding and rotation of the drill bit are both rigidly driven. In such a situation, it is extremely easy to cause damage to the drill bit, which needs to be improved.

[0003] Based on the above, the present invention proposes an intelligent distance - fixed punching device for tobacco planting. Summary of the Invention

[0004] To solve the problems mentioned in the above background, the present invention provides an intelligent distance - fixed punching device for tobacco planting.

[0005] To achieve the above - mentioned technical objectives, the technical solutions adopted by the present invention are as follows.

[0006] An intelligent distance - fixed punching device for tobacco planting includes a power source, a grip shaft, and a punching component; The power source is carried by the planter, the grip shaft is held by the planter, the inside of the grip shaft is hollow and is provided with a connecting shaft, and the output end of the power source is connected to the input end of the connecting shaft through a flexible shaft for power transmission; The punching member includes a connecting bracket connected to the holding shaft and a drill shaft slidably arranged on the connecting bracket in the vertical direction. A driving shaft arranged horizontally is provided on the connecting bracket. The input end of the driving shaft is in power connection with the output end of the connecting shaft. The output end of the driving shaft is in power connection with the drill shaft through a power transmission member. A driving assembly is arranged between the driving shaft and the drill shaft. When the driving shaft rotates, the driving assembly can drive the drill shaft to move downward, and the rotational speed of the driving shaft increases, and the downward movement distance of the drill shaft increases correspondingly. A drill bit is provided at the bottom of the drill shaft.

[0007] As a further improvement and optimization of the present invention, the driven member of the power transmission member is restricted by the connecting bracket and can only rotate. The driven member is installed on the drill shaft through a spline. When the drill shaft moves along the axis, the driven member continuously outputs power to the drill shaft.

[0008] As a further improvement and optimization of the present invention, a guide rod arranged vertically is provided on the connecting bracket. An upper bracket is provided at the upper end of the drill shaft, and the upper bracket is slidably connected to the guide rod.

[0009] As a further improvement and optimization of the present invention, the driving assembly includes a centrifugal unit arranged on the driving shaft and a connecting member arranged between the centrifugal unit and the drill shaft.

[0010] As a further improvement and optimization of the present invention, the centrifugal unit includes a fixed collar fixedly arranged on the driving shaft and a movable collar slidably arranged on the driving shaft. The movable collar is close to the drill shaft. A rod member is arranged between the fixed collar and the movable collar. The rod member includes a counterweight and two connecting rods. One end of the connecting rod is hinged to the counterweight, and the other end of the connecting rod is hinged to the fixed collar or the movable collar.

[0011] As a further improvement and optimization of the present invention, a plurality of rod members are arranged in an array along the circumferential direction of the driving shaft.

[0012] As a further improvement and optimization of the present invention, the connecting member includes a support seat movably arranged on the movable collar. A fixed pulley is provided on the connecting bracket. A movable bracket is slidably arranged on the guide rod. A first connecting rope is provided on the support seat. The end of the first connecting rope bypasses the fixed pulley and is connected to the movable bracket. The movable bracket is connected to the upper end of the drill shaft through a connecting member; When the movable collar moves away from the drill shaft, the movable bracket can be pulled to move downward through the first connecting rope; A spring is arranged outside the drill shaft, and the elastic force of the spring is used to drive the drill shaft to move upward.

[0013] As a further improvement and optimization of the present invention, the connecting member includes a fixed bracket fixedly arranged at the upper end of the guide rod and a movable pulley arranged on the movable bracket. A second connecting rope is arranged on the fixed bracket. The end of the second connecting rope bypasses the movable pulley and is connected to the upper end of the drill shaft. When the movable bracket moves downward, through the cooperation of the movable pulley and the second connecting rope, the drill shaft can be driven to move downward.

[0014] As a further improvement and optimization of the present invention, front wheel brackets and rear wheel brackets are respectively arranged at both ends of the connecting bracket. A front auxiliary wheel is arranged on the front wheel bracket, and a rear auxiliary wheel is arranged on the rear wheel bracket. The grip shaft is movably connected to the connecting bracket, and the power connection between the connecting shaft and the drive shaft is realized through a universal joint.

[0015] As a further improvement and optimization of the present invention, a positioning system is arranged on the grip shaft, and an encoder for detecting the number of rotation turns of the rear auxiliary wheel and a braking member for braking the rear auxiliary wheel are arranged on the rear wheel bracket.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: First, this solution can change the rotational speed of the drive shaft by changing the output power of the power source, thereby changing the downward movement distance and rotational speed of the drill shaft and the drill bit. Therefore, corresponding suitable holes can be drilled according to the actual conditions such as tobacco seedlings and soil. On this basis: This solution drives the drill shaft and the drill bit to perform the drilling action by a single power source. And the faster the rotational speed of the drive shaft, the greater the downward movement distance and rotational speed of the drill bit. That is to say, this solution can adapt to the drilling depth and make the drilling action proceed smoothly. And on this basis, when the hole depth is small, the rotational speed of the drive shaft is small, and the energy consumption of the power source is low. On the contrary, when the hole depth is large, the rotational speed of the drive shaft is large, and the energy consumption of the power source is large. That is, the feeding force and rotational speed of the drill bit in this solution can match the depth of the hole to be drilled, achieving the purpose of energy saving and improving endurance. Tobacco planting occurs in the fields. When large-scale mechanized planting is used, endurance is one of the factors that need to be considered. And this solution can achieve the purpose of energy saving and improving endurance; During the drilling action, if the drill bit encounters a hard object, such as a stone, the movement of the movable collar is restricted. Therefore, in this solution, the drill bit is fed flexibly, which can play a role in protecting the drill bit.

[0017] 2. When the equipment moves, the encoder monitors the number of rotations of the rear auxiliary wheel, so as to obtain the moving distance of the equipment. When the equipment moves a preset distance, the encoder sends a signal to the controller, and the controller sends a signal to activate the brake to limit the rotation of the rear auxiliary wheel. Therefore, the grower can clearly feel a resistance and stop pushing. At the same time, the controller sends a signal to the power source to perform the punching action. At the same time, the controller sends a signal to the positioning system, and the positioning system transmits the position coordinates at this time and saves them in an external device or cloud server, etc. The grower can obtain data in real time and analyze and make decisions, so it can control the distance between two adjacent tobacco seedlings and assist in determining the accurate coordinates of the punching position. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a front view of the present invention; Figure 3 A schematic diagram of a punching member and a grip shaft; Figure 4 It is a structural schematic diagram of a punching component; Figure 5 is a schematic diagram of a drive shaft, a centrifugal unit and a drill shaft; Figure 6 is a structural schematic diagram of the connecting components; Figure 7 This is a schematic diagram of the structure of the auxiliary components.

[0019] The reference numerals in the accompanying drawings are: 100, power source; 101, flexible shaft; 102, grip shaft; 103, positioning system; 200, punching member; 201, connecting bracket; 202, connecting shaft; 203, universal joint; 204, driving shaft; 205, centrifugal unit; 2051, fixed ring sleeve; 2052, movable ring sleeve; 2053, connecting rod; 2054, counterweight; 206, connecting component; 2061, upper bracket; 2062, support; 20 63. Fixed pulley; 2064. First connecting rope; 2065. Movable bracket; 2066. Movable pulley; 2067. Fixed bracket; 2068. Second connecting rope; 207. Drill shaft; 208. Drill bit; 209. Power transmission member; 210. Spring; 300. Auxiliary component; 301. Front wheel frame; 302. Front auxiliary wheel; 303. Rear wheel frame; 304. Rear auxiliary wheel; 305. Encoder; 306. Brake member. DETAILED DESCRIPTION

[0020] To further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following will, in conjunction with the accompanying drawings and preferred embodiments, elaborate in detail on the specific implementation manners, structures, features and their effects of the present invention as follows.

[0021] In the attached drawings of this solution, a refers to the field.

[0022] Embodiment 1 Refer to Figures 1 - 6 , an intelligent fixed-spacing punching device for tobacco planting, including a power source 100, a grip shaft 102 and a punching member 200.

[0023] The power source 100 is carried by the planter and can adopt existing motor + battery technology, or existing engine technology, etc., which will not be elaborated here.

[0024] The grip shaft 102 is held by the planter. The end of the grip shaft 102 is connected to the punching member 200. The inside of the grip shaft 102 is hollow and is provided with a connecting shaft 202. The power connection between the output end of the power source 100 and the input end of the connecting shaft 202 is realized through a flexible shaft 101. The output end of the connecting shaft 202 and the power input end of the punching member 200 form a power connection. Therefore, the punching member 200 can be driven by the power source 100 to perform a punching action.

[0025] Refer to Figure 4 And Figure 5 , the punching member 200 includes a connecting bracket 201 connected to the grip shaft 102 and a drill shaft 207 arranged vertically.

[0026] The connecting bracket 201 is provided with a vertically arranged guide rod. The upper end of the drill shaft 207 is provided with an upper bracket 2061. The upper bracket 2061 and the guide rod form a sliding connection. The bottom of the drill shaft 207 is provided with a drill bit 208.

[0027] The connecting bracket 201 is provided with a horizontally arranged driving shaft 204. The input end of the driving shaft 204 and the output end of the connecting shaft 202 form a power connection. The output end of the driving shaft 204 and the drill shaft 207 are connected through a power transmission member 209. In the attached drawings of this solution, the power transmission member 209 is shown as a bevel gear structure. The driven member of the power transmission member 209 is restricted by the connecting bracket 201 and can only rotate. The driven member is installed on the drill shaft 207 through a spline. When the drill shaft 207 moves along the axis, the driven member continuously outputs power to the drill shaft 207, that is: the power source 100 can drive the drill shaft 207 to rotate through the flexible shaft 101, the connecting shaft 202, the driving shaft 204, and the power transmission member 209 in sequence.

[0028] A driving assembly is provided between the drive shaft 204 and the drill shaft 207. When the drive shaft 204 rotates, the driving assembly can drive the drill shaft 207 to move downward, and the faster the rotation speed of the drive shaft 204, the greater the downward movement distance of the drill shaft 207.

[0029] Specifically, referring to Figures 4 - 6 , the driving assembly includes a centrifugal unit 205 provided on the drive shaft 204 and a connecting member 206 provided between the centrifugal unit 205 and the upper support 2061.

[0030] The centrifugal unit 205 includes a fixed collar 2051 fixedly provided on the drive shaft 204 and a movable collar 2052 slidably provided on the drive shaft 204. The movable collar 2052 is close to the drill shaft 207. A rod is provided between the fixed collar 2051 and the movable collar 2052. The rod includes a counterweight 2054 and two connecting rods 2053. One end of the connecting rod 2053 is hinged to the counterweight 2054, and the other end of the connecting rod 2053 is hinged to the fixed collar 2051 or the movable collar 2052. Preferably, a plurality of rods are arranged in an array along the circumferential direction of the drive shaft 204. In this solution, three rods are shown. When the drive shaft 204 rotates, under the action of centrifugal force, the counterweight 2054 moves away from the drive shaft 204, and the movable collar 2052 moves away from the drill shaft 207. And the higher the rotation speed of the drive shaft 204, the greater the movement distance of the counterweight 2054 and the greater the movement distance of the movable collar 2052.

[0031] The connecting member 206 includes a support 2062 movably provided on the movable collar 2052, for example, installed through a bearing. A fixed pulley 2063 is provided on the connecting bracket 201. A movable bracket 2065 is slidably provided on the guide rod. A first connecting rope 2064 is provided on the support 2062. The end of the first connecting rope 2064 bypasses the fixed pulley 2063 and is connected to the movable bracket 2065. The movable bracket 2065 is connected to the upper support 2061 through a connecting member. Therefore, when the drive shaft 204 rotates and the movable collar 2052 moves, the movable bracket 2065 can be pulled downward through the first connecting rope 2064. The movable bracket 2065 drives the upper support 2061 to move downward together through the connecting member. The upper support 2061 drives the drill shaft 207 to move downward together. A spring 210 is provided outside the drill shaft 207 between the upper support 2061 and the connecting bracket 201. Therefore, when the drive shaft 204 stops rotating, the drill shaft 207 is driven to move upward by the spring 210.

[0032] Further, the connecting member includes a fixed bracket 2067 fixedly arranged at the upper end of the guide rod and a movable pulley 2066 arranged on the movable bracket 2065. A second connecting rope 2068 is arranged on the fixed bracket 2067. The end of the second connecting rope 2068 bypasses the movable pulley 2066 and is connected to the upper bracket 2061. When the drive shaft 204 rotates to cause the movable bracket 2065 to move downward, through the cooperation of the movable pulley 2066 and the second connecting rope 2068, the upper bracket 2061 can be driven to move downward, and the downward movement distance of the upper bracket 2061 is equal to twice the downward movement distance of the movable bracket 2065. The significance lies in that the movable ring sleeve 2052 only needs a small displacement to drive the drill shaft 207 to move downward greatly, reducing the floor area of the overall structure.

[0033] Working process of Embodiment 1: The power source 100 is started, and the drive shaft 204 is driven to rotate in sequence through the flexible shaft 101 and the connecting shaft 202. During the rotation of the drive shaft 204: on the one hand, the drill shaft 207 and the drill bit 208 are driven to rotate through the power transmission member 209. On the other hand, under the action of centrifugal force, the drive shaft 204 causes the movable ring sleeve 2052 to move away from the drill shaft 207. When the movable ring sleeve 2052 moves downward, the drill shaft 207 is driven to move downward together through the connecting member 206. That is to say, the drill shaft 207 drives the drill bit 208 to move downward while rotating, realizing the drilling operation. The advantages of this method are as follows: a. The rotation speed of the drive shaft 204 can be changed by changing the output power of the power source 100, so as to change the downward movement distance and rotation speed of the drill shaft 207 and the drill bit 208, and thus corresponding suitable holes can be drilled according to the actual situations such as tobacco seedlings and soil. b. In this solution, the drill shaft 207 and the drill bit 208 are driven to perform the drilling operation by a single power source 100, and the faster the rotation speed of the drive shaft 204, the greater the downward movement distance and rotation speed of the drill bit 208. That is to say, this solution can adapt to the drilling depth and make the drilling operation proceed smoothly. On this basis, when the hole depth is small, the rotation speed of the drive shaft 204 is small, and the energy consumption of the power source 100 is low. On the contrary, when the hole depth is large, the rotation speed of the drive shaft 204 is large, and the energy consumption of the power source 100 is large. That is, the feeding force and rotation speed of the drill bit 208 in this solution can match the depth of the hole to be drilled, achieving the purpose of energy saving and improving the endurance. Tobacco planting occurs in the fields. When large-scale mechanized planting is used, endurance is one of the factors that need to be considered, and this solution can achieve the purpose of energy saving and improving the endurance. c. During the drilling operation, if the drill bit 208 encounters a hard object, such as a stone, the movement of the movable ring sleeve 2052 is restricted. Therefore, in this solution, the drill bit 208 is fed flexibly, which can play a role in protecting the drill bit 208.

[0034] Embodiment 2 In the first embodiment, it is rather laborious for the planter to hold the grip shaft 102 and move this punching device. In addition, when planting tobacco, in order to ensure the growth effect of the tobacco, it is generally necessary to control the distance between adjacent two tobacco seedlings. Therefore, the second embodiment is proposed.

[0035] Referring to Figure 1 and Figure 2 , an auxiliary component 300 is provided on the connecting bracket 201, which is used to assist the planter in moving this device, and to assist in determining the accurate coordinates of the punching position, and to control the distance between adjacent two tobacco seedlings.

[0036] Referring to Figure 3 , Figure 4 and Figure 7 , the auxiliary component 300 includes a front wheel frame 301 and a rear wheel frame 303 respectively provided at both ends of the connecting bracket 201. A front auxiliary wheel 302 is provided on the front wheel frame 301, and a rear auxiliary wheel 304 is provided on the rear wheel frame 303.

[0037] The grip shaft 102 is movably connected to the connecting bracket 201, and the power connection between the connecting shaft 202 and the drive shaft 204 is achieved through a universal joint 203.

[0038] By supporting the connecting bracket 201 with the front auxiliary wheel 302 and the rear auxiliary wheel 304, the planter only needs to hold the grip shaft 102 and push this device to move, which is more labor-saving and greatly reduces the labor intensity of the planter.

[0039] Referring to Figure 3 and Figure 7 , a positioning system 103 is provided on the grip shaft 102, which can adopt existing GPS positioning technology, etc., and will not be elaborated here.

[0040] An encoder 305 for detecting the number of rotation turns of the rear auxiliary wheel 304 and a braking member 306 for braking the rear auxiliary wheel 304 are provided on the rear wheel frame 303. The encoder 305 and the braking member 306 can be realized by using existing technologies and will not be elaborated here.

[0041] When the device moves, the encoder 305 monitors the number of rotations of the rear auxiliary wheel 304, so that the moving distance of the device can be obtained. When the device moves a preset distance, the encoder 305 sends a signal to the controller (not shown in the figure), and the controller sends a signal to start the brake member 306 to limit the rotation of the rear auxiliary wheel 304. Therefore, the planting personnel can obviously feel a resistance and stop pushing. At the same time, the controller sends a signal to the power source 100 to perform the punching action. At the same time, the controller sends a signal to the positioning system 103, and the positioning system 103 transmits and saves the position coordinates at this time in an external device or a cloud server (not shown in the figure), etc. The planting personnel can obtain the data in real time and analyze and make decisions, so it can control the distance between two adjacent tobacco seedlings and assist in determining the accurate coordinates of the punching position.

[0042] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An intelligent fixed-distance punching device for tobacco planting, comprising a power source (100) and a grip shaft (102), characterized in that, It also includes a punching member (200); The power source (100) is carried by the planter, and the grip shaft (102) is held by the planter. The interior of the grip shaft (102) is hollow and is provided with a connecting shaft (202). A power connection is achieved between the output end of the power source (100) and the input end of the connecting shaft (202) through a flexible shaft (101); The punching member (200) includes a connecting bracket (201) connected to the grip shaft (102) and a drill shaft (207) slidably arranged on the connecting bracket (201) in the vertical direction. A driving shaft (204) arranged horizontally is provided on the connecting bracket (201). The input end of the driving shaft (204) is in power connection with the output end of the connecting shaft (202). A power connection is achieved between the output end of the driving shaft (204) and the drill shaft (207) through a power transmission member (209). A driving assembly is arranged between the driving shaft (204) and the drill shaft (207). When the driving shaft (204) rotates, the driving assembly can drive the drill shaft (207) to move downward, and the rotational speed of the driving shaft (204) increases, and the downward movement distance of the drill shaft (207) increases correspondingly. A drill bit (208) is provided at the bottom of the drill shaft (207).

2. The intelligent fixed-distance punching device for tobacco planting according to claim 1, characterized in that, The driven member of the power transmission member (209) is restricted by the connecting bracket (201) and can only rotate. The driven member is installed on the drill shaft (207) through a spline. When the drill shaft (207) moves along the axis, the driven member continuously outputs power to the drill shaft (207).

3. An intelligent fixed-distance punching device for tobacco planting according to claim 1, characterized in that, A guide rod arranged vertically is provided on the connecting bracket (201). An upper bracket (2061) is provided at the upper end of the drill shaft (207). The upper bracket (2061) is slidably connected to the guide rod.

4. An intelligent fixed-distance punching device for tobacco planting according to claim 1 or 3, characterized in that, The driving assembly includes a centrifugal unit (205) provided on the driving shaft (204) and a connecting member (206) provided between the centrifugal unit (205) and the drill shaft (207).

5. The intelligent fixed-distance punching device for tobacco planting according to claim 4, characterized in that, The centrifugal unit (205) includes a fixed collar (2051) fixedly arranged on the driving shaft (204) and a movable collar (2052) slidably arranged on the driving shaft (204). The movable collar (2052) is close to the drill shaft (207). A rod member is arranged between the fixed collar (2051) and the movable collar (2052). The rod member includes a counterweight (2054) and two connecting rods (2053). One end of the connecting rod (2053) is hinged to the counterweight (2054), and the other end of the connecting rod (2053) is hinged to the fixed collar (2051) or the movable collar (2052).

6. An intelligent fixed-distance punching device for tobacco planting according to claim 5, characterized in that, A plurality of rod members are arranged in an array along the circumferential direction of the driving shaft (204).

7. An intelligent fixed-distance punching device for tobacco planting according to claim 5, characterized in that, The connecting component (206) includes a support (2062) movably arranged on the movable collar (2052). A fixed pulley (2063) is arranged on the connecting bracket (201). A movable bracket (2065) is slidably arranged on the guide rod. A first connecting rope (2064) is arranged on the support (2062). The end of the first connecting rope (2064) bypasses the fixed pulley (2063) and is connected to the movable bracket (2065). A connection is formed between the movable bracket (2065) and the upper end of the drill shaft (207) through a connecting piece. When the movable collar (2052) moves away from the drill shaft (207), the movable bracket (2065) can be pulled down by the first connecting rope (2064). A spring (210) is arranged outside the drill shaft (207). The elastic force of the spring (210) is used to drive the drill shaft (207) to move upward.

8. An intelligent fixed-distance punching device for tobacco planting according to claim 7, characterized in that, The connecting piece includes a fixed bracket (2067) fixedly arranged at the upper end of the guide rod and a movable pulley (2066) arranged on the movable bracket (2065). A second connecting rope (2068) is arranged on the fixed bracket (2067). The end of the second connecting rope (2068) bypasses the movable pulley (2066) and is connected to the upper end of the drill shaft (207). When the movable bracket (2065) moves down, the cooperation of the movable pulley (2066) and the second connecting rope (2068) can drive the drill shaft (207) to move down.

9. An intelligent fixed-distance punching device for tobacco planting according to claim 7, characterized in that, Front wheel frames (301) and rear wheel frames (303) are respectively arranged at both ends of the connecting bracket (201). A front auxiliary wheel (302) is arranged on the front wheel frame (301). A rear auxiliary wheel (304) is arranged on the rear wheel frame (303). The grip shaft (102) is movably connected to the connecting bracket (201). Power connection between the connecting shaft (202) and the drive shaft (204) is achieved through a universal joint (203).

10. An intelligent fixed-distance punching device for tobacco planting according to claim 9, characterized in that, A positioning system (103) is arranged on the grip shaft (102). An encoder (305) for detecting the number of rotation turns of the rear auxiliary wheel (304) and a braking member (306) for braking the rear auxiliary wheel (304) are arranged on the rear wheel frame (303).

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