Crawler-type transplant hole puncher

Abstract

The application discloses a caterpillar type transplanting hole punching device, which comprises a caterpillar driving shaft, a triangular caterpillar, a crank slider punching mechanism, a wheel set speed reduction mechanism and a rack, the triangular caterpillar is in transmission with the caterpillar driving shaft, the triangular caterpillar comprises a walking caterpillar, a wheel set and a wheel set support, both ends of the rack are fixedly connected with the wheel set support of a triangular caterpillar, the crank slider punching mechanism comprises a crank and a slider, the slider is slidably connected with the rack, one end of the crank is fixedly connected with the caterpillar driving shaft, the lower end of the slider is provided with a hole spike, and the wheel set speed reduction mechanism is provided with a brake pad for reducing the speed of the wheel set by friction when the hole spike punches downward. The brake pad of the wheel set speed reduction mechanism reduces the speed during punching, so that the hole spike reduces the speed in the walking direction, the punching process is ensured to punch a vertical hole as straight up and straight down as possible, the punching efficiency and the punching quality are improved, and the automatic punching operation of the triangular caterpillar during walking is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of agricultural machinery, in particular to a caterpillar type transplanting hole punching device. BACKGROUND

[0002] At present, in the hilly areas of the south, when adopting the method of seedling transplanting, generally, seedlings are first grown in nutrient pots, and then artificial holes are dug for transplanting when the seedlings grow to a certain height. Since the size, shape, depth of the artificial holes are different, and the labor efficiency is also very low, semi-automatic or automatic caterpillar type transplanting hole punching devices have gradually replaced manual operations.

[0003] However, the current caterpillar type transplanting hole punching device still has problems such as unsmooth machine running, poor transplanting hole forming, low work efficiency, and certain angle of hole piercing into the soil leading to non-conforming hole forming shape to the expected one. SUMMARY

[0004] The technical problem to be solved by the present application is to overcome the deficiencies of the prior art and provide a caterpillar type transplanting hole punching device.

[0005] To solve the above technical problems, the present application discloses a caterpillar type transplanting hole punching device, which comprises a caterpillar drive shaft, a triangular caterpillar, a crank slider punching mechanism, a wheel set speed reduction mechanism and a rack. The triangular caterpillar is in transmission with the caterpillar drive shaft. The triangular caterpillar comprises a walking caterpillar, a wheel set and a wheel set support. Both ends of the rack are fixedly connected with the wheel set support of the triangular caterpillar. The crank slider punching mechanism comprises a crank and a slider. The slider is slidably connected with the rack. One end of the crank is fixedly connected with the caterpillar drive shaft. The lower end of the slider is provided with a hole piercer. The wheel set speed reduction mechanism is provided with a brake pad for friction speed reduction of the wheel set when the hole piercer punches downward.

[0006] Further, the other end of the crank is provided with a driving pin, the top of the slider is provided with a slider long hole, the length direction of the slider long hole is perpendicular to the movement direction of the slider, and the driving pin is matched with the slider long hole.

[0007] Further, the wheel set speed reduction mechanism comprises a deflection driving mechanism and a swing guide rod mechanism. The swing guide rod mechanism comprises a connecting rod, a driving swing rod hingedly connected with one end of the wheel set support and a driven swing rod. The other ends of the driving swing rod and the driven swing rod are hingedly connected with both ends of the connecting rod. The brake pad is installed on the connecting rod. The deflection driving mechanism drives the driving swing rod to make the brake pad adhere to or separate from the wheel set.

[0008] Furthermore, the yaw drive mechanism includes a rack, a gear, a yaw drive shaft, a pin and an incomplete sheave, the incomplete sheave is fixed to the active rocker arm, the incomplete sheave is fixed to one end of the yaw drive shaft, the other end of the yaw drive shaft is fixed to the gear, and the rack is fixed to the slider and cooperates with the gear.

[0009] Furthermore, the wheel set includes a driving wheel, a supporting wheel and a tensioning wheel which are sleeved in the walking track and mounted on the wheel set bracket, and the brake pad cooperates with the driving wheel.

[0010] Furthermore, it also includes a tensioning slider assembly, which includes a tensioning slider and a slide rail. The tensioning slider is pivotally connected to the tensioning wheel, and the slide rail is fixed to the wheel set bracket. The tensioning slider and the slide rail cooperate with each other, and the tensioning slider and the slide rail are driven by a telescopic adjustment mechanism.

[0011] Furthermore, the telescopic member adjustment mechanism includes a bolt and a spring arranged at one end of the triangular track, the bolt is arranged along the sliding direction of the tensioning slider, the spring is sleeved on the bolt, and one end of the spring abuts against the tensioning slider, and the other end abuts against the slide rail, and the bolt is threadedly connected to the tensioning slider.

[0012] Compared with the prior art, the advantages of the present invention are:

[0013] The present invention integrates a triangular crawler with a crank slider punching mechanism and a wheel set reduction mechanism, so that the triangular crawler has higher passability and smoother travel. The rotational motion of the crawler drive shaft is converted into an up and down motion during punching, and the brake pads of the wheel set reduction mechanism decelerate the holes during punching, so that the hole piercing speed is reduced in the travel direction, ensuring that the vertical holes are punched as close to the vertical direction as possible during the punching process, thereby improving the punching efficiency and the quality of the holes, and thus realizing the automated punching operation of the triangular crawler during the travel process. Furthermore, the power is directly introduced from the crawler drive shaft through the transmission of the crank slider punching mechanism, without the need for an additional power source, and the transmission is simpler and more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 This is an axonometric diagram of a crawler-type transplanting hole punching device disclosed in an embodiment of the present invention;

[0016] Figure 2 A schematic front view of a crawler-type transplanting hole punching device disclosed in an embodiment of the present invention;

[0017] Figure 3 A schematic side view of a crawler-type transplanting hole punching device disclosed in an embodiment of the present invention;

[0018] Figure 4 for Figure 3 Axonometric diagram after AA section.

[0019] Legend:

[0020] 1. Track drive shaft; 2. Triangular track; 3. Crank slider punching mechanism; 4. Wheel set reduction mechanism; 5. Frame; 6. Walking track; 7. Wheel set bracket; 8. Crank; 9. Slider; 10. Hole spike; 11. Brake pad; 12. Drive pin; 13. Slider long hole; 14. Sway drive mechanism; 15. Swing guide rod mechanism; 16. Active rocker arm; 17. Driven rocker arm; 18. Rack; 19. Gear; 20. Sway drive shaft; 21. Push pin; 22. Incomplete groove wheel; 23. Drive wheel; 24. Support wheel; 25. Tensioner; 26. Tensioning slider; 27. Slide rail; 28. Bolt; 29. ​​Spring; 30. Connecting rod. DETAILED DESCRIPTION

[0021] To facilitate understanding of the present invention, the present invention will be described in more comprehensive and detailed form below in conjunction with the accompanying drawings and preferred embodiments. However, the protection scope of the present invention is not limited to the following specific embodiments.

[0022] like Figure 1-4As shown, the present invention discloses a crawler-type transplanting hole punching device, which is installed on the lower side of the punching machine, including a crawler drive shaft 1, a triangular crawler 2, a crank slider punching mechanism 3, a wheel set reduction mechanism 4 and a frame 5. The triangular crawler 2 is transmitted to the crawler drive shaft 1, the triangular crawler 2 includes a walking crawler 6, a wheel set and a wheel set bracket 7. Both ends of the frame 5 are fixedly connected to the wheel set bracket 7 of a triangular crawler 2. The crank slider punching mechanism 3 includes a crank 8 and a slider 9, thereby converting the rotational motion of the crawler drive shaft 1 into an up and down motion during punching. The slider 9 slides up and down with the frame 5 and completes the punching operation during the downward movement. One end of the crank 8 is fixedly connected to the crawler drive shaft 1, and the lower end of the slider 9 is provided with a hole thorn 10. The hole thorn 10 matches the shape of the transplanting hole. The wheel set reduction mechanism 4 is provided with a brake pad 11 for frictionally decelerating the wheel set when the hole thorn 10 punches downward. The brake pad 11 is an arc structure that matches the shape of the driving wheel 23. Thus, the present invention integrates the triangular track 2 with the crank slider drilling mechanism 3 and the wheel set reduction mechanism 4, thereby converting the rotational motion of the track drive shaft 1 into up and down motion during drilling. The brake pad 11 of the wheel set reduction mechanism 4 acts as a decelerator during drilling, thereby reducing the speed of the piercer 10 in the travel direction, ensuring that the vertical hole is drilled as straight up and down as possible during the drilling process, minimizing the problem of the piercer 10 entering the soil at a certain angle. This improves drilling efficiency and quality, thereby enabling automated drilling operations while the triangular track 2 is traveling. Furthermore, through the transmission of the track drive shaft 1 and the crank slider drilling mechanism 3, power is directly drawn from the track drive shaft 1, eliminating the need for an additional power source, making the transmission simpler and more efficient. In this embodiment, the wheel set includes a drive wheel 23, a support wheel 24, and a tensioning wheel 25, which are sleeved within the traveling track 6 and mounted on the wheel set bracket 7. The brake pad 11 cooperates with the drive wheel 23.

[0023] In this embodiment, in order to better convert the rotational motion of the crawler drive shaft 1 into the up and down motion of the hole 10 at the lower end of the slider 9, a drive pin 12 is provided at the other end of the crank 8, and a slider long hole 13 is provided at the top of the slider 9. The length direction of the slider long hole 13 is perpendicular to the movement direction of the slider 9, and the drive pin 12 is horizontally inserted into the slider long hole 13.

[0024] In this embodiment, the wheel set reduction mechanism 4 includes a yaw drive mechanism 14 and a swing guide rod mechanism 15. The swing guide rod mechanism 15 includes an active rocker rod 16 and a driven rocker rod 17, one end of which is hinged to the wheel set bracket 7. The other ends of the active rocker rod 16 and the driven rocker rod 17 are hinged to the two ends of the brake pad 11. Thus, the active rocker rod 16, the driven rocker rod 17 and the brake pad 11 form a swinging four-bar mechanism. The yaw drive mechanism 14 drives the active rocker rod 16 to make the brake pad 11 fit into or separate from the wheel set. Specifically, to share the power source and save transmission components, the yaw drive mechanism 14 includes a rack 18, a gear 19, a yaw drive shaft 20, a detent pin 21, and an incomplete sheave 22. The incomplete sheave 22 is one-twelfth the size of the corresponding complete sheave, so that when the detent pin 21 moves counterclockwise, it rotates the incomplete sheave 22 clockwise by 30 degrees. When the detent pin 21 moves counterclockwise, it rotates the incomplete sheave 22 counterclockwise by 30 degrees back to its original position. Driven by the detent pin 21, the incomplete sheave 22 reciprocates up and down by 30 degrees. The incomplete sheave 22 is fixedly connected to the active rocker 16. The incomplete sheave 22 is fixedly connected to one end of the yaw drive shaft 20. The other end of the yaw drive shaft 20 is fixedly connected to the gear 19. The yaw drive shaft 20 is pivotally connected to the wheel assembly bracket 7. The rack 18 is fixedly connected to the slider 9 and cooperates with the gear 19. The incomplete sheave 22 moves back and forth thirty degrees up and down with the front system, driving the active rocker arm 16 on the same axis as the incomplete sheave 22 to perform the same movement. The corresponding driven rocker arm 17 and the brake pad 11 are fixed together to perform reciprocating motion. When the slider 9 moves downward, the active rocker arm 16 rotates thirty degrees clockwise to make the brake pad 11 contact with the drive wheel 23, and the speed is reduced by the action of friction. The contact is lost on the return journey, and the triangular crawler 2 resumes normal speed operation, achieving overall speed reduction drilling and normal speed operation.

[0025] In this embodiment, in order to achieve tension adjustment of the walking track 6, a tensioning slider assembly is also included. The tensioning slider assembly includes a tensioning slider 26 and a slide rail 27. The tensioning slider 26 is pivotally connected to the tensioning wheel 25, and the slide rail 27 is fixed to the wheel group bracket 7. The tensioning slider 26 and the slide rail 27 cooperate with each other, and the tensioning slider 26 and the slide rail 27 are driven by a telescopic adjustment mechanism.

[0026] In this embodiment, the telescopic member adjustment mechanism includes a bolt 28 and a spring 29 arranged at one end of the triangular track 2. The bolt 28 is arranged along the sliding direction of the tensioning slider 26. The spring 29 is sleeved on the bolt 28, and one end of the spring 29 abuts against the tensioning slider 26, and the other end abuts against the slide rail 27. The bolt 28 is threadedly connected to the tensioning slider 26.

[0027] During the specific operation, the driver moves the machine to the top of the land where transplanting holes need to be punched and starts the machine. Since one end of the crank 8 is fixed to the crawler drive shaft 1, the crank 8 rotates continuously throughout the whole circle, and the driven slider 9 is driven by the other end of the crank 8 to perform reciprocating and uninterrupted up and down punching movements. When the hole thorn 10 at the bottom of the slider 9 moves downward, the rack 18 fixed on it moves downward and meshes with the matching gear 19, driving the gear 19 to move clockwise. The gear 19 and the pin 21 that drives the incomplete groove wheel 22 are fixed on the same eccentric drive shaft 20, so that the pin 21 also rotates clockwise, and during the movement, the incomplete groove wheel 22 is rotated thirty degrees, and the incomplete groove wheel 22 and the wheel group reduction mechanism are rotated. 4's active rocker arm 16 is fixed on the same shaft, and the active rocker arm 16 swings thirty degrees. The brake pad 11 fixed to the connecting rod 30 on the wheel reduction mechanism 4 contacts the drive wheel 23, and the friction force causes the whole machine to slow down to a certain extent. At this time, the slider 9 continues to move downward, the gear 19 and the rack 18 disengage, and the drilling is completed. As the crank 8 rotates to the other half of the circle, the slider 9 moves upward, and the rack 18 moves upward and engages with the matching gear 19, causing the gear 19 to rotate counterclockwise. Similarly, the pin 21 drives the incomplete groove wheel 22 to rotate counterclockwise by thirty degrees, so that the brake pad 11 returns to its original position, the deceleration effect is released, and the triangular crawler 2 runs and moves forward normally. During the operation of the machine, the crank 8 continues to move in a circular motion, and the above motion is performed reciprocatingly to achieve automatic drilling.

[0028] Although the present invention has been disclosed above with reference to preferred embodiments, this is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, utilize the technical content disclosed above to make many possible changes and modifications to the technical solution of the present invention, or modify it into an equivalent embodiment with equivalent changes. Therefore, any simple modification, equivalent change, and modification 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 shall fall within the scope of protection of the technical solution of the present invention.

Claims

1. A crawler-type transplanting hole punching device, characterized in that: It comprises a crawler drive shaft (1), a triangular crawler (2), a crank slider punching mechanism (3), a wheel set reduction mechanism (4) and a frame (5), wherein the triangular crawler (2) is driven by the crawler drive shaft (1), the triangular crawler (2) comprises a walking crawler (6), a wheel set and a wheel set bracket (7), both ends of the frame (5) are fixedly connected to a wheel set bracket (7) of the triangular crawler (2), the crank slider punching mechanism (3) comprises a crank (8) and a slider (9), the slider (9) is connected to the frame (5) up and down, one end of the crank (8) is fixedly connected to the crawler drive shaft (1), the lower end of the slider (9) is provided with a hole thorn (10), and the wheel set reduction mechanism (4) is provided with a brake pad (11) for frictionally reducing the wheel set when the hole thorn (10) punches holes downward; The wheel group reduction mechanism (4) includes a yaw drive mechanism (14) and a swing guide mechanism (15), the swing guide mechanism (15) includes a connecting rod (30) and an active swing rod (16) and a driven swing rod (17) with one end hinged to the wheel group bracket (7), the other ends of the active swing rod (16) and the driven swing rod (17) are hinged to the two ends of the connecting rod (30), the brake pad (11) is mounted on the connecting rod (30), and the yaw drive mechanism (14) drives the active swing rod (16) to make the brake pad (11) fit or separate from the wheel group; The yaw drive mechanism (14) includes a rack (18), a gear (19), a yaw drive shaft (20), a detent pin (21) and an incomplete sheave (22), wherein the incomplete sheave (22) is fixedly connected to the active rocker (16), the detent pin (21) is fixedly connected to one end of the yaw drive shaft (20), and the other end of the yaw drive shaft (20) is fixedly connected to the gear (19), the rack (18) is fixedly connected to the slider (9) and cooperates with the gear (19), and the detent pin (21) drives the incomplete sheave (22) to make the brake pad (11) fit into or separate from the wheel set.

2. The crawler-type transplanting hole punching device according to claim 1, characterized in that: A driving pin (12) is provided at the other end of the crank (8), and a slider long hole (13) is provided at the top of the slider (9). The length direction of the slider long hole (13) is perpendicular to the movement direction of the slider (9), and the driving pin (12) cooperates with the slider long hole (13).

3. The crawler-type transplanting hole punching device according to claim 1, characterized in that: The wheel set comprises a driving wheel (23), a supporting wheel (24) and a tensioning wheel (25) which are sleeved in the walking track (6) and mounted on the wheel set bracket (7); the brake pad (11) cooperates with the driving wheel (23).

4. The crawler-type transplanting hole punching device according to claim 3, characterized in that: The invention also includes a tensioning slider assembly, which includes a tensioning slider (26) and a slide rail (27). The tensioning slider (26) is pivotally connected to the tensioning wheel (25), and the slide rail (27) is fixed to the wheel assembly bracket (7). The tensioning slider (26) and the slide rail (27) cooperate with each other, and the tensioning slider (26) and the slide rail (27) are driven by a telescopic member adjustment mechanism.

5. The crawler-type transplanting hole punching device according to claim 4, characterized in that: The telescopic member adjustment mechanism includes a bolt (28) and a spring (29) arranged at one end of the triangular crawler (2), wherein the bolt (28) is arranged along the sliding direction of the tensioning slider (26), and the spring (29) is sleeved on the bolt (28), and one end of the spring (29) abuts against the tensioning slider (26), and the other end abuts against the slide rail (27), and the bolt (28) is threadedly connected to the tensioning slider (26).

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