Transmission device and plug seedling transplanter

Abstract

The present invention discloses a transmission device and a plug seedling transplanter. The transmission device includes a bottom plate, an output mechanism, and an input mechanism; the output mechanism includes an output shaft rotatably arranged on the bottom plate, an output wheel arranged on the output shaft, and a transition wheel movably arranged on the bottom plate, and the transition wheel meshes with the output wheel; the input mechanism is arranged on the bottom plate; the input mechanism includes a plurality of input shafts surrounding the periphery of the output shaft, and a plurality of different input wheel sets respectively arranged on the plurality of input shafts; the transition wheel cooperates with each input wheel set; in the first working state, the transition wheel meshes with one of the input wheel sets; in the second working state, the transition wheel meshes with another one of the input wheel sets. In the technical solution provided by the present invention, only by adjusting the transition wheel so that the output wheel can mesh with different input wheel sets, the plant spacing of the plug seedlings can be changed, the structure is simple, the operation is convenient, and the transplanting is more flexible and diverse.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery, and particularly relates to a transmission device and a plug seedling transplanter. Background Art

[0002] The existing plug seedling transplanter can only transplant crops at a fixed plant spacing during operation, and it is not convenient to transplant other crops with different plant spacing requirements on the same machine. When it is necessary to change the operating plant spacing, it is necessary to stop the machine and disassemble the machine to replace the transplanting components, which takes a long time and the operation is relatively cumbersome. Summary of the Invention

[0003] In order to solve the above technical problems, the main object of the present invention is to provide a transmission device and a plug seedling transplanter, aiming to solve the problem that the traditional plug seedling transplanter cannot transplant plug seedlings with different plant spacings.

[0004] In order to achieve the above object, a transmission device proposed by the present invention includes:

[0005] A bottom plate;

[0006] An output mechanism, including an output shaft rotatably provided on the bottom plate, an output wheel provided on the output shaft, and a transition wheel movably provided on the bottom plate, the transition wheel meshing with the output wheel; and,

[0007] An input mechanism provided on the bottom plate; the input mechanism includes a plurality of input shafts disposed around the output shaft, and a plurality of different input wheel sets respectively provided on the plurality of input shafts; the transition wheel cooperates with each of the input wheel sets; wherein,

[0008] In the first working state, the transition wheel meshes with one of the input wheel sets;

[0009] In the second working state, the transition wheel meshes with another one of the input wheel sets.

[0010] Optionally, the output wheel is provided as an output gear or an output ratchet;

[0011] The transition wheel is provided as a transition gear or a transition ratchet;

[0012] The input wheel set is provided as an input gear set or an input ratchet set.

[0013] Optionally, the input gear set includes a first input gear provided on the bottom plate, and a second input gear coaxially provided with the first input gear, and every two adjacent first input gears are meshed with each other;

[0014] The transition gear is located between the second input gear and the output gear, and the transition gear is engaged with each of the second input gears; wherein,

[0015] In the first working state, the transition gear is engaged with one of the second input gears;

[0016] In the second working state, the transition gear is engaged with the other one of the second input gears.

[0017] Optionally, a plurality of the first input gears are arranged circumferentially along the output gear, and the diameters of the plurality of the first input gears are arranged to increase or decrease gradually along the circumferential direction of the output gear.

[0018] Optionally, a plurality of the input shafts are arranged on a circumference with the output shaft as the center, and the diameters of the plurality of the second input gears are the same.

[0019] Optionally, the transmission device further includes a transfer mechanism connecting the transition gear and the output gear, and the transfer mechanism is used to drive the transition gear to be engaged with each of the second input gears respectively.

[0020] Optionally, a plurality of the first input gears are arranged circumferentially along the output gear, and the transition gear is provided with a mounting hole; the transfer mechanism includes:

[0021] A transfer frame fixedly connected to the output shaft, and the transfer frame is provided with a through hole corresponding to the mounting hole; and,

[0022] A moving handle, one end of the moving handle is arranged in the mounting hole, and the other end of the moving handle passes through the through hole and protrudes out of the transfer frame.

[0023] Optionally, the moving handle is detachably arranged in the mounting hole;

[0024] In the first working state or the second working state, the moving handle is in a separated state from the transition gear; when converting from the first working state to the second working state, the moving handle is in a connected state with the mounting hole.

[0025] Optionally, the through hole is in a long strip shape and extends along the radial direction of the output gear;

[0026] The transmission device further includes a limiting plate arranged opposite to the bottom plate, and the second input gear and the output gear are located between the limiting plate and the bottom plate;

[0027] The limiting plate is provided with a plurality of notch chucks with openings facing the circumferential side, and the plurality of notch chucks are arranged in one-to-one correspondence with the plurality of second input gears. The moving handle has a moving stroke from the notch opening of the notch chuck towards the bottom of the notch.

[0028] The present invention also provides a plug seedling transplanter, including a transmission device and a driving device. The transmission device includes:

[0029] A bottom plate;

[0030] An output mechanism, including an output shaft rotatably arranged on the bottom plate, an output wheel arranged on the output shaft, and a transition wheel movably arranged on the bottom plate. The transition wheel meshes with the output wheel; and,

[0031] An input mechanism arranged on the bottom plate; the input mechanism includes a plurality of input shafts surrounding the output shaft, and an input wheel set corresponding to each input shaft. The diameters of the plurality of input wheel sets are different; the transition wheel is cooperated with each input wheel set; wherein,

[0032] In the first working state, the transition wheel meshes with one of the input wheel sets;

[0033] In the second working state, the transition wheel meshes with another one of the input wheel sets;

[0034] The driving device is connected to one of the input shafts of the transmission device.

[0035] In the technical solution provided by the present invention, by providing a plurality of the input wheel sets, the output wheel can be meshed with a plurality of input wheels respectively through the transition wheel, so that the rotation of each input wheel set can drive the output wheel to rotate, so as to drive the seedling separating mechanism to move. And the diameters of the plurality of input wheel sets are set to be different, so that different input wheel sets can have different rotation speeds, so that the output wheel can obtain different rotation speeds, so that the seedling releasing speed of the seedling separating mechanism is different, and thus the plant spacing of the plug seedlings is different. When it is necessary to change the plant spacing of the plug seedlings, only need to adjust the transition wheel so that the transition wheel meshes with different input wheel sets. The structure is simple and the operation is convenient, making the transplanting more flexible and diverse. Description of the Drawings

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0037] Figure 1 Schematic structural diagram of an embodiment of a transmission device provided by the present invention;

[0038] Figure 2 is Figure 1 exploded structural diagram of the transmission device described in

[0039] Figure 3 is Figure 1 schematic structural diagram of another perspective of the transmission device described in

[0040] Figure 4 is Figure 1 schematic structural diagram of the transmission device (excluding the cover plate and the limit plate) described in

[0041] Figure 5 is Figure 4 top view schematic structural diagram of the transmission device described in

[0042] Explanation of the reference numerals in the drawings:

[0043] Label Name Label Name 100 Transmission device 32 First input gear 1 Base plate 33 Second input gear 2 Output mechanism 4 Transfer mechanism 21 Output shaft 41 Transfer rack 22 Output gear 42 Moving handle 23 Intermediate gear 5 Limit plate 3 Input mechanism 51 Notch card slot 31 Input shaft 6 Cover plate

[0044] For the realization of the object of the present invention, its functional features and excellent effects, further explanations will be given below in conjunction with specific embodiments and the drawings. Specific embodiments

[0045] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0046] It should be noted that if there are directional indications involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0047] In addition, if the embodiments of the present invention involve descriptions such as "first" and "second", the descriptions of "first", "second", etc. are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel scenarios. Taking "A and / or B" as an example, it includes Scenario A, or Scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0048] The present invention provides a transmission device and a plug seedling transplanter. Figures 1 to 5 This is an embodiment of a transmission device provided by the present invention.

[0049] The present invention provides a plug seedling transplanter for automatically transplanting plug seedlings. The plug seedling transplanter includes a transmission device 100 and a driving device. The driving device is used to provide power to the transmission device 100 to adjust the output rotation speed through the transmission device 100, so as to achieve different transplanting plant spacings of the plug seedlings. Please refer to Figures 1 to 2 , in this embodiment, the transmission device 100 includes a bottom plate 1, an output mechanism 2, and an input mechanism 3; the bottom plate 1 is used for fixedly installing on other support structures of the plug seedling transplanter; the output mechanism 2 includes an output shaft 21 rotatably arranged on the bottom plate 1, an output wheel arranged on the output shaft 21, and a transition wheel movably arranged on the bottom plate 1. The transition wheel meshes with the output wheel to drive the output wheel to rotate; the input mechanism 3 is arranged on the bottom plate 1. The input mechanism 3 includes a plurality of input shafts 31 surrounding the circumference of the output shaft 21 and a plurality of different input wheel sets respectively arranged on the plurality of input shafts 31; the transition wheel cooperates with each input wheel set; wherein, in the first working state, the transition wheel meshes with one of the input wheel sets; in the second working state, the transition wheel meshes with another one of the input wheel sets, so that the transition wheel can mesh with input wheel sets of different diameters. When the input wheel set rotates, the output wheel can obtain different rotation speeds. The output wheel is used to connect to a seedling separating mechanism, so that the seedling dropping speed of the seedling separating mechanism is different, thereby changing the plant spacing of the plug seedlings.

[0050] In the technical solution provided by the present invention, a plurality of the input wheel sets are provided, so that the output wheel can be respectively engaged with a plurality of input wheels through the transition wheel, so that the rotation of each input wheel set can drive the rotation of the output wheel, so as to drive the movement of the seedling separating mechanism. The diameters of the plurality of input wheel sets are set to be different, so that different input wheel sets can have different rotation speeds, so that the output wheel can obtain different rotation speeds, so that the seedling releasing speed of the seedling separating mechanism is different, and thus the plant spacing of the plug seedlings is different. When it is necessary to change the plant spacing of the plug seedlings, only need to adjust the transition wheel so that the transition wheel is engaged with different input wheel sets. The structure is simple and the operation is convenient, making the transplanting more flexible and diverse.

[0051] It should be noted that the input wheel is used to be connected with a driving mechanism, such as a motor, a cylinder, etc., to drive the rotation of the input wheel, so as to drive the rotation of the output wheel. In this embodiment, there are various forms of setting the input wheel and the output wheel. In one embodiment, the input wheel and the output wheel can be set as belt wheels and can be connected by a belt for synchronous rotation.

[0052] In this embodiment, the output wheel can be set as an output gear 22 or an output ratchet; the transition wheel can be set as a transition gear 23 or a transition ratchet; the input wheel set can be set as an input gear set or an input ratchet set. The transition wheel can be simultaneously engaged with the input gear set and the output gear 22 to transmit the torque of the input gear set to the output gear 22 to drive the rotation of the output gear 22, and then perform seedling transplantation.

[0053] Further, reference can be made to Figure 2, the input gear set includes a first input gear 32 disposed on the bottom plate 1 and a second input gear 33 coaxially arranged with the first input gear 32, so that the rotational speed of the second input gear 33 is the same as that of the first input gear 32, and two adjacent first input gears 32 are meshed with each other. Therefore, only one driving mechanism needs to be provided to connect any one of the first input gears 32, and all the first input gears 32 can be driven to rotate, making the structure simpler and more cost-effective; the second input gear 33 can be arranged on the same side of the bottom plate 1 as the first input gear 32, or can be respectively arranged on the opposite sides of the bottom plate 1; the intermediate gear 23 is located between the second input gear 33 and the output gear 22, and the intermediate gear 23 is engaged with each second input gear 33; wherein, in the first working state, the intermediate gear 23 is engaged with one of the second input gears 33; in the second working state, the intermediate gear is engaged with another one of the second input gears 33, and the intermediate gear 23 can be simultaneously engaged with the output gear 22 and a second input gear 33 to transmit the torque of the input gear to the output gear 22. The intermediate gear 23 can be movably engaged with different second input gears 33, so that the torque of the output gear 22 can be changed, thereby changing the seedling transplanting spacing.

[0054] In this embodiment, the number of the second input gears 33 can be less than the number of the first input gears 32, and the number of the second input gears 33 can be set according to specific requirements. For example, if the user needs to transplant seedlings with different spacings in 5 gears, the second input gears 33 can be set to 5, and the number of the first input gears 32 can be greater than or equal to 5. When changing the spacing, adjusting the intermediate gear 23 to be engaged with 5 different second input gears 33 can achieve 5 different spacings, which is convenient to adjust. And when the number of the first input gears 32 is greater than that of the second input gears 33, to achieve more spacings, adding the second input gears 33 on the input shaft 31 can achieve it, and the change is also very convenient. And among the multiple first input gears 32, the rotation directions of two adjacent first input gears 32 are opposite. In order to ensure that the rotation direction of the output gear 22 remains unchanged, generally, the second input gears 33 are arranged at intervals on the first input gears 32. For example, if the first input gears 32 are sequentially numbered 1, 2, 3..., the second input gears 33 are respectively arranged on the first input gears 32 with odd numbers, or the second input gears 33 are respectively arranged on the first input gears 32 with even numbers, so that when the intermediate gear 23 is engaged with each second input gear 33, the rotation direction of the output gear 22 always remains unchanged.

[0055] In this embodiment, reference may be made to Figure 4 and Figure 5 , a plurality of the first input gears 32 are arranged along the circumferential direction of the output gear 22, and the diameters of the plurality of the first input gears 32 are arranged to increase or decrease gradually along the circumferential direction of the output gear 22, so as to gradually increase or decrease the plant spacing.

[0056] In one embodiment, a plurality of the input shafts 31 are arranged on a circumference with the output shaft 21 as the center. The diameters of the plurality of the second input gears 33 are the same. Since the diameters of the plurality of the first input gears 32 are different, the rotational speeds of the respective input shafts 31 are different. The diameters of the plurality of the second input gears 33 are set to be the same to more conveniently mesh with the intermediate gear 23.

[0057] In another embodiment, when the diameters of the plurality of the first input gears 32 are arranged to increase gradually, the distance between the input shaft 31 and the intermediate gear 23 may also be arranged to gradually increase, so that the intermediate gear 23 is directly meshed with the plurality of the first input gears 32 respectively, so as to omit the second input gears 33. However, when the input shafts 31 are arranged on the same circumference, the structure will be more compact, so as to save more space.

[0058] Of course, the diameters of the plurality of the first input gears 32 do not necessarily need to be arranged to increase or decrease gradually, and may also be arranged irregularly, such as the diameters of the plurality of the first input gears 32 are arranged to first increase and then decrease, or first decrease and then increase.

[0059] In order to facilitate the movement of the intermediate gear 23, in this embodiment, the transmission device 100 may further include a transfer mechanism 4 connecting the intermediate gear 23 and the output gear 22, and the transfer mechanism 4 is used to drive the intermediate gear 23 to mesh with the respective second input gears 33.

[0060] Specifically, a plurality of the first input gears 32 are arranged circumferentially along the output gear 22, so that the intermediate gear 23 can move circumferentially along the output gear 22 to respectively mesh with each of the second input gears 33, so as to change the seedling transplanting spacing. An installation hole is provided on the intermediate gear 23; the transplanting mechanism 4 includes a transplanting frame 41 and a moving handle 42. The transplanting frame 41 is fixedly connected to the output shaft 21. A through hole corresponding to the installation hole is provided on the transplanting frame 41; one end of the moving handle 42 is arranged in the installation hole; the other end of the moving handle 42 passes through the through hole and protrudes outside the transplanting frame 41. The moving handle 42 has a circumferential movement stroke along the output gear 22, so as to move the intermediate gear 23 by adjusting the moving handle 42; the moving handle 42 moves circumferentially along the output gear 22 to drive the intermediate gear 23 to move circumferentially along the output gear 22, so that the intermediate gear 23 meshes with each of the second input gears 33 respectively.

[0061] Further, the moving handle 42 is detachably arranged in the installation hole; the moving handle 42 and the intermediate gear 23 are detachably arranged. When the spacing needs to be adjusted, the moving handle 42 can be installed in the installation hole. The connection method between the moving handle 42 and the installation hole is not specifically limited herein. It can be connected by thread, or by clamping or interference fit, etc. The connection method is relatively simple and will not be elaborated herein. In the first working state or the second working state, the moving handle 42 and the intermediate gear 23 are in a separated state; when switching from the first working state to the second working state, the moving handle 42 and the installation hole are in a connected state. The specific operation steps of the moving handle 42 are as follows: when the spacing needs to be changed, lift the moving handle 42 to drive the intermediate gear 23 to move, so that the intermediate gear 23 is separated from the meshed second input gear 33 to disengage from the meshing state; rotate the moving handle 42 to move the intermediate gear 23 to another second input gear 33, and then lower the moving handle 42 to make the intermediate gear 23 mesh with another second input gear 33, thereby changing the rotation speed of the output gear 22 and changing the transplanting spacing.

[0062] Further, reference can be made to Figure 3, the through hole is arranged in a long strip shape and extends along the radial direction of the output gear 22. The moving handle 42 has a moving stroke along the extending direction of the through hole. When the plant spacing does not need to be adjusted, the moving handle 42 can move along the through hole to the other end of the transfer rack 41; the transmission device 100 further includes a limiting plate 5 disposed opposite to the bottom plate 1. The second input gear 33 and the output gear 22 are located between the limiting plate 5 and the bottom plate 1 to limit the second input gear 33, the output gear 22, and the intermediate gear 23 between the bottom plate 1 and the limiting plate 5; a plurality of notch grooves 51 with openings facing the circumferential side are provided on the limiting plate 5. The plurality of notch grooves 51 are arranged in one-to-one correspondence with the plurality of second input gears 33. The moving handle 42 has a moving stroke from the notch of the notch groove 51 along the groove bottom direction. When the moving handle 42 enters the notch groove 51 from the notch of the notch groove 51, one end of the moving handle 42 penetrates into the notch groove 51. When the intermediate gear 23 moves to mesh with one of the second input gears 33, the position of the intermediate gear 23 on the bottom plate 1 is limited to prevent the intermediate gear 23 from disengaging from the second input gear 33 during operation, so as to ensure the stability of the operation of the transmission device 100.

[0063] In this embodiment, the other end of the input shaft 31 is further connected with a cover plate 6. The cover plate 6 is disposed opposite to the bottom cover, and the middle of the cover plate 6 is hollowed out. The limiting plate 5 is located in the hollowed-out area and is connected to the cover plate 6 to fix the position of the limiting plate 5.

[0064] The above are only the optional embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structures made by using the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are equally included in the patent protection scope of the present invention.

Claims

1. A transmission device, characterized in that, it includes: a bottom plate; an output mechanism, including an output shaft rotatably arranged on the bottom plate, an output wheel arranged on the output shaft, and an idler wheel movably arranged on the bottom plate, and the idler wheel meshes with the output wheel; and, an input mechanism arranged on the bottom plate; the input mechanism includes a plurality of input shafts surrounding the output shaft, and a plurality of different input wheel sets respectively arranged on the plurality of input shafts; the idler wheel cooperates with each input wheel set; wherein, the output wheel is set as an output gear or an output ratchet; the idler wheel is set as a transition gear or a transition ratchet; the input wheel set is set as an input gear set or an input ratchet set; the input gear set includes a first input gear arranged on the bottom plate and a second input gear coaxially arranged with the first input gear, and every two adjacent first input gears are meshed with each other; the transition gear is located between the second input gear and the output gear, and the transition gear cooperates with each second input gear; wherein, in the first working state, the transition gear meshes with one of the second input gears; in the second working state, the transition gear meshes with another one of the second input gears; the transmission device further includes a transfer mechanism connecting the transition gear and the output gear, and the transfer mechanism is used to drive the transition gear to mesh with each second input gear respectively; the plurality of first input gears are arranged along the circumferential direction of the output gear, and the transition gear is provided with a mounting hole; the transfer mechanism includes: a transfer frame fixedly connected to the output shaft, and a through hole corresponding to the mounting hole is arranged on the transfer frame; and, a moving handle, one end of the moving handle is arranged in the mounting hole, and the other end of the moving handle passes through the through hole and protrudes outside the transfer frame; the moving handle is detachably arranged in the mounting hole; in the first working state or the second working state, the moving handle is in a separated state from the transition gear; when converting from the first working state to the second working state, the moving handle is in a connected state with the mounting hole; the through hole is in a strip shape and extends along the radial direction of the output gear; the transmission device further includes a limiting plate oppositely arranged with the bottom plate, and the second input gear and the output gear are located between the limiting plate and the bottom plate; a plurality of notch grooves are formed on the circumferential edge of the limiting plate, and the plurality of notch grooves are arranged in one-to-one correspondence with the plurality of second input gears, and the moving handle has a moving stroke from the notch opening to the notch bottom of the notch groove.

2. The transmission device according to claim 1, characterized in that, the plurality of first input gears are arranged along the circumferential direction of the output gear, and the diameters of the plurality of first input gears are gradually increased or gradually decreased along the circumferential direction of the output gear.

3. The transmission device according to claim 2, characterized in that, A plurality of the input shafts are arranged on a circumference centered on the output shaft, and the diameters of the plurality of second input gears are the same.

4. A plug seedling transplanter, characterized in that it includes: a transmission device according to any one of claims 1 to 3; and a driving device connected to one of the input shafts of the transmission device.

Images