Combined-operation synergistic precision seeder for cotton production in hilly and mountainous areas

Abstract

The invention discloses a precision seeder for combined operation synergistic cotton production in hilly and mountainous areas, and relates to the technical field of agricultural power machinery. The device comprises a mounting base plate, a seed separating cylinder, a negative pressure adsorption cylinder and a plurality of seeding parts. The negative-pressure adsorption cylinder is coaxially arranged in the seed separating cylinder, and the vibrator and the negative-pressure air pump are combined, so that single-seed adsorption and quantitative separation of cotton seeds are realized; the adsorption air holes are shielded and desorbed when rotating to the position of the seeding shifting pipe, and the seeds enter the seeding part through the seed guide hose. The seeding part adopts a parallel swing arm structure to drive an arch-shaped frame to swing back and forth, so that needle inserting tube petals are vertically inserted into soil all the time, and adjustable control over the seeding depth and the petals opening time is achieved through a triangular push block and an adjusting lead screw. A plurality of seeding parts are synchronously driven by a crankshaft, and a shock absorber is arranged between adjacent structures, so that self-adaptive compensation on complex terrains in hilly and mountainous areas is realized.

Description

Technical Field

[0001] This invention relates to the field of agricultural power machinery technology, specifically to a precision seeder for cotton production in hilly and mountainous areas that enhances efficiency through combined operations. Background Technology

[0002] When operating in hilly and mountainous areas, existing cotton seeding machinery generally employs mechanical seeding wheels, seed pans, or gravity-feed methods for sowing and seeding. Regarding the seeding actuators, existing equipment mostly uses a rigid insertion structure, with each seeder having a uniform stroke, lacking the ability to adapt to uneven terrain. When there are local elevation differences in the work area, some seeders may fail to penetrate the soil, directly affecting the uniformity of sowing and the quality of seedling emergence. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, the present invention provides the following technical solution: a precision seeder for cotton production in hilly and mountainous areas, comprising a mounting base plate, on which a seeding cylinder arranged horizontally is mounted and suspended; a negative pressure adsorption cylinder is coaxially arranged on the inner side of the seeding cylinder, with a gap between the circumferential surface of the negative pressure adsorption cylinder and the inner wall of the seeding cylinder; and multiple vibrators are fixedly mounted at equal intervals on the bottom of the outer wall of the seeding cylinder; multiple seeding sections for delivering cotton seeds into the soil are fixedly mounted on the mounting base plate via a seeding section fixing plate, and each seeding section includes a seeding section fixed to the seeding section fixing plate. A fixed-fit swing seat is provided, and an arched frame is provided on the side of the swing seat. The arched frame and the swing seat are movably connected by parallel upper and lower swing arms. Two horizontal and parallel needle tube guide slides are fixedly installed on the inner side of the arched frame. Two symmetrically arranged needle tubes are slidably mounted on the two needle tube guide slides. Two symmetrical springs are wrapped around each needle tube guide slide, and the two ends of the springs are fixed to the arched frame and the needle tubes respectively. A toggle pin is fixedly installed on each of the two needle tubes. A triangular push block is provided between the two toggle pins to push the two toggle pins away from each other.

[0004] Preferably, the inner diameter of the seeding cylinder is larger than the outer diameter of the negative pressure adsorption cylinder, and the two ends of the seeding cylinder are sealed to the negative pressure adsorption cylinder by two rubber sealing rings; wherein the rubber sealing rings are fixedly fitted with the seeding cylinder, and the rubber sealing rings are rotatably and sealingly sleeved on the negative pressure adsorption cylinder; multiple rubber sealing rings are equidistantly provided on the circumferential surface of the negative pressure adsorption cylinder along its own axial direction.

[0005] Preferably, a seeding tube support is also fixedly mounted on the mounting base plate. The seeding tube support has seeding tubes of the same number as the adsorption pores and aligned with their positions. Each seeding tube penetrates the seeding cylinder and slides in contact with the circumferential surface of the negative pressure adsorption cylinder. The contact surface between the seeding tube and the negative pressure adsorption cylinder is an arc surface, which is equivalent to the circumferential surface of the negative pressure adsorption cylinder cutting through the seeding tube, leaving only the portion located on the outer side of the negative pressure adsorption cylinder.

[0006] Preferably, a seed inlet groove is fixedly installed on the seeding cylinder, and the seed inlet groove is tangentially connected to the inside of the seeding cylinder; the two ends of the negative pressure adsorption cylinder are rotatably mounted on the mounting base plate; a seeding motor and a negative pressure air pump are also fixedly installed on the mounting base plate, wherein the output shaft of the seeding motor drives the negative pressure adsorption cylinder to rotate through a first transmission belt, and the air inlet of the negative pressure air pump is fixedly connected to a pressure pipe, and the pressure pipe is rotatably sealed to the axial position of one end of the negative pressure adsorption cylinder.

[0007] Preferably, two symmetrically arranged crank disc brackets are also fixedly installed on the swing seat. A gap is left between the two crank disc brackets, and two symmetrically arranged crank discs are arranged inside the gap between the two crank disc brackets. The two crank discs are rotatably installed on the corresponding crank disc brackets through crank shafts, and the crank shafts in the two adjacent seeding sections are coaxially fixed.

[0008] Preferably, a shock absorber mounting pin is fixed to the circumferential edge between the opposing surfaces of the two crank discs on each swing seat. A shock absorber is movably connected between the shock absorber mounting pin and the middle of the upper swing arm, and the shock absorber can be fully inserted between the two crank discs.

[0009] Preferably, a sowing swing drive motor is fixedly installed inside the swing seat, and the output shaft of the sowing swing drive motor drives the crankshaft to rotate via a second transmission belt. If the number of sowing sections is too large, the number of sowing swing drive motors and the second transmission belt can be appropriately increased.

[0010] Preferably, a seed-dropping nozzle is provided between the top of the inner walls of the two needle tube flaps. The seed-dropping nozzle is fixedly installed on the bow-shaped frame, and the seed-dropping nozzle is connected to the seed-dropping tube through a seed-guiding hose.

[0011] Preferably, the sowing section further includes a vertical drop plate, a triangular push block support slide rod is fixedly installed on the top of the vertical drop plate, and an adjusting screw is rotatably installed on the top of the vertical drop plate. The triangular push block is slidably sleeved on the triangular push block support slide rod, and the triangular push block and the adjusting screw are threadedly driven together.

[0012] Preferably, an annular pad is fixedly installed at the bottom of the vertical drop plate, which is used to allow the two needle tube flaps to pass through; two vertical and parallel vertical slide rods are also fixedly installed on the bow-shaped frame, wherein the vertical drop plate is slidably installed on the two vertical slide rods, and the bottom of the two vertical slide rods is provided with a limiting ring to prevent the vertical drop plate from separating from the vertical slide rod.

[0013] Compared with the prior art, the present invention has the following advantages: (1) The present invention sets a negative pressure adsorption cylinder coaxially inside the seeding cylinder and sets adsorption pores matching the size of cotton seeds on the circumferential surface of the negative pressure adsorption cylinder. Combined with the continuous excitation of cotton seeds at the bottom of the seeding cylinder by the vibrator, the cotton seeds are adsorbed one by one in a dynamic and loose state, which fundamentally avoids the problems of multiple adsorption, adhesion adsorption or leakage. At the same time, the adsorption pores are blocked and forcibly desorbed when rotating to the seed dispensing tube position, so that each adsorption position completes only one effective seed drop. From the structural level, the single seed separation and quantitative delivery of cotton seeds are realized, which significantly improves the consistency and controllability of the number of seeds sown under the working conditions in hilly and mountainous areas; (2) The present invention uses the arc surface contact cooperation between the seed dispensing tube and the negative pressure adsorption cylinder to make the adsorption pores complete the blocking desorption at a fixed position. The cotton seeds directly enter the seed guide tube from the adsorption position and are introduced into the needle tube flap by the seed drop nozzle. The whole process does not rely on additional turning. (2) The plate, push rod or secondary actuation structure, the needle tube flap directly delivers the seeds into the soil, realizing the combination of precision sowing and precise positioning; (3) The present invention drives the triangular push block to move along the axis of the support slide rod by adjusting the screw, so that the needle tube flap opens to release the seeds at different depths of insertion into the soil, thereby realizing independent adjustment of sowing depth and opening timing; (4) In the structure of multiple sowing parts in synchronous linkage, the present invention introduces shock absorbers between the crank discs to enable each sowing part to have local stroke compensation capability while maintaining overall synchronous drive. When there are local bumps or uneven areas on the ground, the shock absorber of the corresponding sowing part can be compressed and deformed, thereby allowing the needle tube flap to shorten the insertion stroke relatively, while the sowing parts in other lower areas can still complete the full insertion action. This structure effectively solves the problem of partial missed sowing and partial excessive sowing when sowing at multiple points in hilly and mountainous areas at the same time, and significantly improves the adaptability of the whole machine to complex terrain. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 This is a schematic diagram of the mounting base plate structure of the present invention.

[0016] Figure 3 This is a schematic diagram of the internal structure of the seeding cylinder of the present invention.

[0017] Figure 4 For the present invention Figure 3Schematic diagram of the structure at point A in the middle.

[0018] Figure 5 This is a structural layout diagram of the crankshaft disk of the present invention.

[0019] Figure 6 This is a diagram showing the installation position of the triangular push block of the present invention.

[0020] Figure 7 This is a diagram showing the closed state of the insertion pin valve of the present invention.

[0021] Figure 8 This is a diagram showing the open state of the insertion tube flap of the present invention.

[0022] In the diagram: 101-Mounting base plate; 102-Seed dispensing cylinder; 103-Seed inlet trough; 104-Seed dispensing motor; 105-First transmission belt; 106-Negative pressure air pump; 107-Air pressure pipe; 108-Negative pressure adsorption cylinder; 109-Rubber sealing ring; 110-Seed feeding tube; 111-Seed feeding tube bracket; 112-Sowing section fixing plate; 113-Vibrator; 114-Adsorption air hole; 201-Swing seat; 202-Crank disc bracket; 203-Crank disc; 204-Crankshaft; 205-Shock absorber Device; 206-Seed guiding hose; 207-Upper swing arm; 208-Lower swing arm; 209-Shock absorber mounting pin; 210-Arch-shaped frame; 211-Annular pad; 212-Vertical drop plate; 213-Adjusting screw; 214-Triangular push block support slide bar; 215-Triangular push block; 216-Vertical slide bar; 217-Actuating sliding pin; 218-Needle tube flap; 219-Spring; 220-Seed drop nozzle; 221-Needle tube flap guide slide bar; 301-Sowing swing drive motor; 302-Second transmission belt. Detailed Implementation

[0023] The following is in conjunction with the appendix Figures 1-8 The technical solution of the present invention will be further illustrated through specific embodiments.

[0024] This invention provides a precision seeder for cotton production in hilly and mountainous areas, comprising a mounting base plate 101, on which a horizontally arranged seeding cylinder 102 is fixedly mounted. A negative pressure adsorption cylinder 108 is coaxially arranged on the inner side of the seeding cylinder 102, with a gap between the circumferential surface of the negative pressure adsorption cylinder 108 and the inner wall of the seeding cylinder 102. Multiple equidistant vibrators 113 are fixedly mounted on the bottom of the outer wall of the seeding cylinder 102. Multiple seeding sections for delivering cotton seeds into the soil are fixedly mounted on the mounting base plate 101 via a seeding section fixing plate 112. Each seeding section includes a swing seat 201 fixedly fitted with the seeding section fixing plate 112, and a bow is provided on the side of the swing seat 201. The bow-shaped frame 210 and the swing seat 201 are movably connected by an upper swing arm 207 and a lower swing arm 208 arranged in parallel. Two horizontal and parallel needle tube guide slides 221 are fixedly installed on the inner side of the bow-shaped frame 210. Two symmetrically arranged needle tubes 218 are slidably arranged on the two needle tube guide slides 221. Two symmetrical springs 219 are wrapped around each needle tube guide slide 221. The two ends of the springs 219 are fixed to the bow-shaped frame 210 and the needle tube 218, respectively. A toggle pin 217 is fixedly installed on each of the two needle tubes 218. A triangular push block 215 is provided between the two toggle pins 217 to push the two toggle pins 217 away from each other.

[0025] The inner diameter of the seeding cylinder 102 is larger than the outer diameter of the negative pressure adsorption cylinder 108, and the two ends of the seeding cylinder 102 are sealed to the negative pressure adsorption cylinder 108 by two rubber sealing rings 109; the rubber sealing rings 109 are fixedly fitted with the seeding cylinder 102, and the rubber sealing rings 109 are rotatably fitted onto the negative pressure adsorption cylinder 108; a plurality of rubber sealing rings 109 are equidistantly arranged along their axial direction on the circumferential surface of the negative pressure adsorption cylinder 108. A seeding tube support 111 is also suspended and fixed on the mounting base plate 101, and seeding tubes 110 are fixedly installed on the seeding tube support 111, with the same number of seeding tubes 114 as the adsorption holes 114 and aligned with the position of the adsorption holes 114. Each seeding tube 110 penetrates the seeding cylinder 102 and slides in contact with the circumferential surface of the negative pressure adsorption cylinder 108. The contact surface between the seed dispensing tube 110 and the negative pressure adsorption cylinder 108 is an arc surface, which is equivalent to the circumferential surface of the negative pressure adsorption cylinder 108 cutting the seed dispensing tube 110, leaving only the part located on the outside of the negative pressure adsorption cylinder 108. A seed inlet groove 103 is fixedly installed on the seed dispensing cylinder 102, and the seed inlet groove 103 is tangentially connected to the inside of the seed dispensing cylinder 102; the two ends of the negative pressure adsorption cylinder 108 are rotatably mounted on the mounting base plate 101; a seed dispensing motor 104 and a negative pressure air pump 106 are also fixedly installed on the mounting base plate 101, wherein the output shaft of the seed dispensing motor 104 drives the negative pressure adsorption cylinder 108 to rotate through the first transmission belt 105, and the air inlet of the negative pressure air pump 106 is fixedly connected to a pressure pipe 107, which is rotatably sealed with the axial position of one end of the negative pressure adsorption cylinder 108.

[0026] Two symmetrically arranged crank plate supports 202 are fixedly installed on the swing seat 201. A gap exists between the two crank plate supports 202, and two symmetrically arranged crank plates 203 are disposed within the gap between the two crank plate supports 202. Each crank plate 203 is rotatably mounted on its corresponding crank plate support 202 via a crank shaft 204, and the crank shafts 204 in adjacent sowing sections are coaxially fixed. A shock absorber mounting pin 209 is fixed to the circumferential edge between the opposing surfaces of the two crank plates 203 on each swing seat 201. A shock absorber 205 is movably connected between the shock absorber mounting pin 209 and the middle of the upper swing arm 207, allowing the shock absorber 205 to fully enter between the two crank plates 203. A sowing swing drive motor 301 is fixedly installed inside the swing seat 201, and the output shaft of the sowing swing drive motor 301 drives the crank shaft 204 to rotate via a second transmission belt 302. If the number of sowing sections is too large, the number of sowing swing drive motors 301 and second transmission belts 302 can be appropriately increased. A seed drop nozzle 220 is provided between the tops of the inner walls of the two needle tube segments 218. The seed drop nozzle 220 is fixedly installed on the bow-shaped frame 210, and is connected to the seed dispensing tube 110 via a seed guide hose 206. The sowing section also includes a vertical drop plate 212. A triangular push block support slide rod 214 is fixedly installed on the top of the vertical drop plate 212. An adjusting screw rod 213 is also rotatably installed on the top of the vertical drop plate 212. A triangular push block 215 is slidably sleeved on the triangular push block support slide rod 214, and the triangular push block 215 is threadedly engaged with the adjusting screw rod 213. An annular pad 211 is fixedly installed at the bottom of the vertical drop plate 212. The annular pad 211 is used to allow the two needle tube flaps 218 to pass through. Two vertical and parallel vertical slide rods 216 are also fixedly installed on the bow-shaped frame 210. The vertical drop plate 212 is slidably installed on the two vertical slide rods 216, and the bottom of the two vertical slide rods 216 is provided with a limiting ring to prevent the vertical drop plate 212 from separating from the vertical slide rod 216.

[0027] During use, the mounting base plate 101 needs to be fixed to the transfer machine (such as a tractor). It is essential to ensure that the mounting base plate 101 remains stationary. Due to the relatively long length of the seed inlet trough 103, cotton seeds need to be poured into it in batches and evenly, ensuring that the seeds fall relatively evenly into the bottom of the seeding cylinder 102 (the gap between the circumferential surface of the negative pressure adsorption cylinder 108 and the inner wall of the seeding cylinder 102). All vibrators 113 are activated, causing the bottom of the seeding cylinder 102 to vibrate, which in turn causes the cotton seeds inside the seeding cylinder 102 to jump. Simultaneously, the seeding motor 104 is activated. The output shaft of the seeding motor 104 drives the negative pressure adsorption cylinder 108 to rotate inside the seeding cylinder 102 via the first transmission belt 105 (the negative pressure adsorption cylinder 108 rotates on the mounting base plate 101). At the same time, the negative pressure air pump 106 is activated, and the air inlet of the negative pressure air pump 106... The air pressure pipe 107 creates a negative pressure environment inside the negative pressure adsorption cylinder 108. At this time, the adsorption vent 114 is the air inlet. When the adsorption vent 114 on the negative pressure adsorption cylinder 108 rotates to the bottom, it will come into contact with the bouncing cotton seeds. The cotton seeds will then be adsorbed onto the adsorption vent 114 (the diameter of the adsorption vent 114 should be smaller than the size of the cotton seeds). The cotton seeds will rotate with the adsorption vent 114. When the adsorption vent 114 rotates to the position of the seed release tube 110, the seed release tube 110 will block the adsorption vent 114 and the cotton seeds, causing the cotton seeds to fall off the adsorption vent 114. The fallen cotton seeds will be guided by the seed guide tube 206 and transported to the two needle tubes 218.

[0028] Start the sowing swing drive motor 301. The output shaft of the sowing swing drive motor 301 drives the crankshaft 204 to rotate through the second transmission belt 302. Since all the crankshafts 204 are fixedly connected end to end, all the crankshafts 204 rotate synchronously. (The crankshaft 204 is fixed to the crank disc 203, and two adjacent crank discs 203 are fixed together by the shock absorber mounting pin 209. Therefore, the transmission path is crankshaft 204, crank disc 203, shock absorber mounting pin 209, crank disc 203, crankshaft 204 to the crankshaft 204 in the next sowing section). The shock absorber mounting pin 209 rotates with the crank disc 203, causing the upper swing arm 207 to reciprocate on the swing seat 201 via the shock absorber 205. Simultaneously, the lower swing arm 208 moves synchronously. Since the upper and lower swing arms 207 and 208 are parallel (the swing seat 201 and the bow frame 210 are also always parallel), the pin tube 218 on the bow frame 210 remains vertical. When the bow frame 210 moves towards the ground, the vertical drop plate 212 on the vertical slide bar 216 causes the annular pad 211 to contact the ground first, followed by the bow frame 210. The movement of the two needle tube flaps 218 continues, and the two closed needle tube flaps 218 insert into the soil. When the actuating pins 217 on the needle tube flaps 218 move to contact the top inclined edge of the triangular push block 215, the triangular push block 215 pushes the two actuating pins 217 to move away from each other. Through the actuating pins 217, the needle tube flaps 218 move synchronously, and the needle tube flaps 218 compress the corresponding springs 219. At this time, the two needle tube flaps 218 open, causing the cotton seeds inside the needle tube flaps 218 to fall into the soil. When moving upward, the two actuating pins 217 separate from the triangular push block 215, and the two needle tube flaps 218 close again under the action of the springs 219. Rotating the adjusting screw 213 with a wrench causes the triangular push block 215 to slide along the axial direction of the triangular push block support slide 214, adjusting the distance between the triangular push block 215 and the ground, which in turn adjusts the timing of the two closed needle tube segments 218 separating when inserted into the soil. The shock absorber 205 ensures normal operation even when the planting ground is not completely flat, such as when encountering bumps. For example, without the shock absorber 205, all the needle tube segments 218 would swing downwards uniformly, meaning that lower-lying soil would not contact the needle tube segments 218. With the shock absorber 205, as long as the lower-lying soil can contact the needle tube segments 218, the shock absorber 205 in the seed section corresponding to the higher-lying soil will be compressed and deformed, ensuring that each needle tube segment 218 can be inserted into the soil.

Claims

1. A precision seeder for combined operations in hilly and mountainous areas to enhance cotton production efficiency, characterized in that: The system includes a mounting base plate (101), on which a seeding cylinder (102) with a horizontally arranged axis is fixedly mounted. A negative pressure adsorption cylinder (108) is coaxially arranged on the inner side of the seeding cylinder (102). A gap is left between the circumferential surface of the negative pressure adsorption cylinder (108) and the inner wall of the seeding cylinder (102). Multiple vibrators (113) are fixedly mounted at equal intervals on the bottom of the outer wall of the seeding cylinder (102). Multiple seeding units for delivering cotton seeds into the soil are fixedly installed on the mounting base plate (101) via the seeding unit fixing plate (112). Each seeding unit includes a swing seat (201) fixedly fitted with the seeding unit fixing plate (112). An arched frame (210) is provided on the side of the swing seat (201). The arched frame (210) and the swing seat (201) are movably connected by an upper swing arm (207) and a lower swing arm (208) arranged in parallel. Two horizontal and parallel needle tube guide slides (221) are fixedly installed on the inner side of the bow-shaped frame (210). Two symmetrically arranged needle tubes (218) are slidably arranged on the two needle tube guide slides (221). Two symmetrical springs (219) are sleeved around each needle tube guide slide (221). The two ends of the springs (219) are fixed to the bow-shaped frame (210) and the needle tubes (218) respectively. A toggle pin (217) is fixedly installed on each of the two needle tubes (218). A triangular push block (215) is provided between the two toggle pins (217) to push the two toggle pins (217) away from each other.

2. The precision seeder for combined operations in hilly and mountainous areas to enhance cotton production efficiency, as described in claim 1, is characterized in that: The inner diameter of the seeding cylinder (102) is larger than the outer diameter of the negative pressure adsorption cylinder (108), and the two ends of the seeding cylinder (102) are sealed to the negative pressure adsorption cylinder (108) by two rubber sealing rings (109); the rubber sealing rings (109) are fixedly fitted with the seeding cylinder (102), and the rubber sealing rings (109) are rotated and sealed on the negative pressure adsorption cylinder (108); a plurality of rubber sealing rings (109) are equidistantly provided on the circumferential surface of the negative pressure adsorption cylinder (108) along its own axial direction.

3. The precision seeder for combined operations in hilly and mountainous areas to enhance cotton production efficiency, as described in claim 2, is characterized in that: The mounting base plate (101) is also suspended and fixed with a seeding tube support (111). The seeding tube support (111) is fixedly installed with a number of seeding tubes (110) that are the same as the number of adsorption holes (114) and aligned with the position of the adsorption holes (114). Each seeding tube (110) passes through the seeding cylinder (102) and slides in contact with the circumferential surface of the negative pressure adsorption cylinder (108).

4. The precision seeder for combined operations in hilly and mountainous areas to enhance cotton production efficiency, as described in claim 3, is characterized in that: A seed inlet groove (103) is fixedly installed on the seeding cylinder (102), and the seed inlet groove (103) is tangentially connected to the inside of the seeding cylinder (102); the two ends of the negative pressure adsorption cylinder (108) are rotatably mounted on the mounting base plate (101); a seeding motor (104) and a negative pressure air pump (106) are also fixedly installed on the mounting base plate (101), wherein the output shaft of the seeding motor (104) drives the negative pressure adsorption cylinder (108) to rotate through the first transmission belt (105), wherein the air inlet of the negative pressure air pump (106) is fixedly connected to a pressure pipe (107), and the pressure pipe (107) is rotatably sealed with the axial position of one end of the negative pressure adsorption cylinder (108).

5. A precision seeder for combined operations in hilly and mountainous areas to enhance cotton production efficiency, as described in claim 4, is characterized in that: Two symmetrically arranged crank plate brackets (202) are also fixedly installed on the swing seat (201). There is a gap between the two crank plate brackets (202), and two symmetrically arranged crank plates (203) are arranged inside the gap between the two crank plate brackets (202). The two crank plates (203) are rotatably installed on the corresponding crank plate brackets (202) through crank shafts (204), and the crank shafts (204) in the two adjacent seeding sections are coaxially fixed.

6. A precision seeder for combined operations in hilly and mountainous areas to enhance cotton production efficiency, as described in claim 5, is characterized in that: A damper mounting pin (209) is fixed on the circumferential edge between the opposing surfaces of the two crank discs (203) on each swing seat (201). A damper (205) is movably connected between the damper mounting pin (209) and the middle of the upper swing arm (207). The damper (205) can be fully inserted between the two crank discs (203).

7. A precision seeder for combined operations in hilly and mountainous areas to enhance cotton production efficiency, as described in claim 6, is characterized in that: The sowing swing drive motor (301) is fixedly installed on the inner side of the swing seat (201). The output shaft of the sowing swing drive motor (301) drives the crank shaft (204) to rotate through the second transmission belt (302).

8. A precision seeder for combined operations in hilly and mountainous areas to enhance cotton production efficiency, as described in claim 7, is characterized in that: A seed drop nozzle (220) is provided between the top of the inner wall of the two needle tube flaps (218). The seed drop nozzle (220) is fixedly installed on the bow frame (210). The seed drop nozzle (220) is connected to the seed release tube (110) through a seed guide hose (206).

9. A precision seeder for combined operations in hilly and mountainous areas to enhance cotton production efficiency, as described in claim 8, characterized in that: The seeding section also includes a vertical drop plate (212), on the top of which a triangular push block support slide rod (214) is fixedly installed. An adjusting screw rod (213) is also rotatably installed on the top of the vertical drop plate (212). The triangular push block (215) is slidably sleeved on the triangular push block support slide rod (214), and the triangular push block (215) and the adjusting screw rod (213) are threadedly driven together.

10. A precision seeder for combined operations in hilly and mountainous areas to enhance cotton production efficiency, as described in claim 9, characterized in that: An annular pad (211) is fixedly installed at the bottom of the vertical drop plate (212), and the annular pad (211) is used to allow the two needle tube flaps (218) to pass through; two vertical and parallel vertical slide rods (216) are also fixedly installed on the bow-shaped frame (210), wherein the vertical drop plate (212) is slidably installed on the two vertical slide rods (216), and the bottom of the two vertical slide rods (216) is provided with a limiting ring to prevent the vertical drop plate (212) from separating from the vertical slide rod (216).

Images