Tobacco ejection type seedling taking mechanism

Abstract

The utility model discloses a tobacco ejection type seedling taking mechanism. The tobacco ejection type seedling taking mechanism comprises a machine frame, an ejection rod set arranged on the machine frame and an ejection driving mechanism used for driving the ejection rod set to do reciprocating ejection motion on the machine frame. The ejection driving mechanism comprises a transmission rotating shaft, a rotary transmission rocker, a rotary transmission connecting rod and a power mechanism; the transmission rotating shaft is rotationally arranged on the rack; the power mechanism is connected to the upper end of the transmission rotating shaft and used for driving the transmission rotating shaft to rotate. One end of the rotary transmission rocker is connected with the lower end of the transmission rotating shaft; the other end of the rotary transmission rocker is hinged with one end of the rotary transmission connecting rod; and the other end of the rotary transmission connecting rod is hinged with the ejector rod group. According to the seedling taking mechanism, the automatic seedling taking operation process in tobacco seedling transplanting can be achieved, damage to tobacco seedlings is reduced, the structure is simple, the seedling taking mechanism can adapt to the rough operation environment, the transplantability is high, operation is convenient, the labor intensity of manual seedling taking is reduced, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to tobacco transplanting technical field, concretely relates to a tobacco ejection type seedling taking mechanism. BACKGROUND

[0002] Nicotiana is an annual herb, as an economic crop with huge economic benefits, has extremely extensive planting range, and tobacco planting mode is mainly seedling transplanting, tobacco transplanting refers to transplanting tobacco seedlings that are well grown in a greenhouse to a field at the right time in spring, and timely tobacco transplanting is beneficial to the later development of tobacco and can improve the quality and yield of tobacco.

[0003] Seedling transplanting mechanization technology can effectively improve planting benefits, shorten crop growth cycle and reduce labor cost, and is widely applied in agricultural production. SUMMARY

[0004] The utility model aims at overcoming the above-mentioned problems, providing a tobacco ejection type seedling taking mechanism, which can realize automatic seedling taking operation in tobacco seedling transplanting, reduce damage to tobacco seedlings, has simple structure, can adapt to rough working environment, has strong transplanting property, is convenient to operate, reduces labor intensity of manual seedling taking and improves production efficiency.

[0005] The utility model realizes the purpose by the following technical scheme:

[0006] A tobacco ejection type seedling taking mechanism, comprising a rack, a top rod group arranged on the rack and an ejection driving mechanism for driving the top rod group to perform reciprocating ejection movement on the rack, the ejection driving mechanism comprising a transmission shaft, a rotary transmission swing rod, a rotary transmission connecting rod and a power mechanism, the transmission shaft being rotatably arranged on the rack, the power mechanism being connected to the upper end of the transmission shaft and used for driving the transmission shaft to rotate, one end of the rotary transmission swing rod being connected to the lower end of the transmission shaft, the other end of the rotary transmission swing rod being hingedly connected to one end of the rotary transmission connecting rod, and the other end of the rotary transmission connecting rod being hingedly connected to the top rod group.

[0007] The working principle of the above-mentioned tobacco ejection type seedling taking mechanism is as follows:

[0008] In operation, the power mechanism drives the transmission rotating shaft to rotate, drives the rotary transmission rocker to rotate, drives the rotary transmission connecting rod to move, and further drives the ejector rod set to realize reciprocating movement on the frame, thereby realizing the ejecting movement of the tobacco seedling tray and the automatic seedling taking operation in the tobacco seedling transplanting.

[0009] In an optimal embodiment of the utility model, the frame is provided with a limiting groove on each side, and the two ends of the ejector rod set are respectively in sliding fit with the limiting grooves on the two sides of the frame. The limiting groove is provided to enable the ejector rod set to slide on the limiting groove, thereby playing the role of guiding, limiting and mounting the ejector rod set and ensuring the stability of the movement of the ejector rod set.

[0010] Preferably, the ejector rod set comprises an ejector rod mounting plate and a plurality of ejector rods arranged on the ejector rod mounting plate; the ejector rod mounting plate is in sliding fit with the limiting groove, and the rotary transmission connecting rod is hinged to the ejector rod mounting plate. In the above structure, the ejector rod mounting plate is driven to slide on the limiting groove, thereby driving the ejector rods to move and realizing the ejecting movement of the tobacco seedling tray.

[0011] Preferably, the frame comprises a first side plate, a second side plate and a fixed plate fixedly arranged between the first side plate and the second side plate, the transmission rotating shaft is rotatably arranged on the fixed plate, and the two limiting grooves are respectively arranged on the first side plate and the second side plate. In the above structure, the first side plate and the second side plate are provided to realize the mounting of the limiting grooves, and the fixed plate is provided to enable the first side plate and the second side plate to be fixed and the transmission rotating shaft to be mounted, thereby making the structure compact and the layout reasonable.

[0012] Preferably, a ejector rod limiting frame is arranged between the first side plate and the second side plate, one end of the ejector rod limiting frame is fixedly connected to the first side plate, the other end is fixedly connected to the second side plate, a through hole is arranged on the ejector rod limiting frame at a position corresponding to the ejector rod, and the ejector rod passes through the through hole. In the above structure, the limiting groove and the ejector rod limiting frame cooperate with the ejector rod set, the limiting groove limits the lateral movement of the ejector rod during the reciprocating movement of the ejector rod set, the ejector rod moves in the through hole on the ejector rod limiting frame, and the process of the ejector rod following the movement of the tobacco seedling tray during the continuous movement of the tobacco seedling tray can be realized; at the same time, the ejector rod limiting frame can make the first side plate and the second side plate more stable.

[0013] Preferably, the power mechanism comprises a driving motor, a power input shaft arranged on the frame, a power transmission shaft, a synchronous belt wheel set arranged between the power input shaft and the power transmission shaft, and a bevel gear transmission mechanism arranged between the transmission rotating shaft and the power transmission shaft; the main shaft of the driving motor is connected to the power input shaft. Through the above structure, the driving motor drives the power input shaft to move, the power is transmitted to the power transmission shaft through the synchronous belt wheel set, and then the power is transmitted to the transmission rotating shaft through the bevel gear transmission mechanism.

[0014] Preferably, the synchronous pulley groups are two groups distributed on both sides of the bevel gear transmission mechanism; each of the synchronous pulley groups comprises a driving pulley arranged on the power input shaft, a driven pulley arranged on the power transmission shaft, and a transmission belt arranged between the driving pulley and the driven pulley; the bevel gear transmission mechanism comprises a driving bevel gear arranged on the power transmission shaft and a driven bevel gear arranged at the upper end of the transmission shaft and engaged with the driving bevel gear. In the above structure, the power input shaft and the power transmission shaft are arranged horizontally, which can improve the stability of the first side plate and the second side plate on the one hand, and save the vertical space on the other hand, so that a larger space can be reserved in front of the tobacco ejection type seedling taking mechanism, and the damage of the tobacco ejection type seedling taking mechanism to the tobacco seedlings during work can be reduced. At the same time, since the horizontal span of the tobacco ejection type seedling taking mechanism is large, the power output is more uniform by arranging two synchronous pulley groups, and the service life of the mechanism is improved.

[0015] Preferably, the axis of the power input shaft and the axis of the power transmission shaft are located on the same vertical plane; the power input shaft is located above the power transmission shaft. The purpose is to further improve the compactness of the structure, and better reserve the space in front of the tobacco ejection type seedling taking mechanism, facilitating the seedling taking operation.

[0016] The utility model has the following beneficial effects compared with the prior art:

[0017] The tobacco ejection type seedling taking mechanism in the utility model realizes the reciprocating motion of the ejector rod group through the power mechanism, can realize the automatic seedling taking operation process in the tobacco seedling transplanting, realizes the seedling taking form of the tobacco seedling tray through the ejector rod group, reduces the damage of the seedling taking mechanism to the tobacco seedlings, and has the simple structure, can adapt to the rough operation environment, has the strong transplanting, and is convenient to operate, reduces the labor intensity of manual seedling taking, and improves the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is a three-dimensional structure schematic view of the tobacco ejection type seedling taking mechanism in the utility model.

[0019] Fig. 2 It is a three-dimensional structure schematic view of the ejector rod transmission mechanism in the utility model.

[0020] Fig. 3 It is a three-dimensional structure schematic view of the ejector rod group in the utility model. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to well understand the technical scheme of the utility model, the utility model will be further described below in combination with the embodiments and the drawings, but the implementation manner of the utility model is not limited to this.

[0022] ReferenceFigs. 1-3 The embodiment discloses a tobacco ejection type seedling taking-out mechanism, which comprises a rack, an ejection rod group 9 arranged on the rack, and an ejection driving mechanism for driving the ejection rod group 9 to perform reciprocating ejection movement on the rack; the ejection driving mechanism comprises a transmission rotating shaft 12, a rotary transmission swing rod 15, a rotary transmission connecting rod 11 and a power mechanism; the transmission rotating shaft 12, the rotary transmission swing rod 15 and the rotary transmission connecting rod 11 constitute an ejection rod transmission mechanism, and the transmission rotating shaft 12 is rotationally arranged on the rack; the power mechanism is connected to the upper end of the transmission rotating shaft 12 and used for driving the transmission rotating shaft 12 to rotate; one end of the rotary transmission swing rod 15 is connected to the lower end of the transmission rotating shaft 12; the other end of the rotary transmission swing rod 15 is hingedly connected to one end of the rotary transmission connecting rod 11; and the other end of the rotary transmission connecting rod 11 is hingedly connected to the ejection rod group 9.

[0023] Referring to Figs. 1-3 The rack is provided with limiting grooves 8 on both sides, and the two ends of the ejection rod group 9 are respectively in sliding fit with the limiting grooves 8 on both sides of the rack. By arranging the limiting grooves 8, the ejection rod group 9 can slide on the limiting grooves 8, thereby playing a guiding, limiting and mounting role on the ejection rod group 9 and ensuring the stability of the movement of the ejection rod group 9.

[0024] Referring to Figs. 1-3 The ejection rod group 9 comprises an ejection rod mounting plate and a plurality of ejection rods arranged on the ejection rod mounting plate; the ejection rod mounting plate is in sliding fit with the limiting grooves 8, and the rotary transmission connecting rod 11 is hingedly connected to the ejection rod mounting plate. In the above structure, the ejection rod mounting plate is driven to slide on the limiting grooves 8, thereby driving the ejection rods to move and realizing the ejection movement of the tobacco seedling tray.

[0025] Referring to Figs. 1-3 The rack comprises a first side plate 1, a second side plate 2 and a fixed plate 7 fixedly arranged between the first side plate 1 and the second side plate 2, the transmission rotating shaft 12 is rotationally arranged on the fixed plate 7, and two limiting grooves 8 are arranged on the first side plate 1 and the second side plate 2 respectively. In the above structure, the first side plate 1 and the second side plate 2 are arranged to realize the mounting of the limiting grooves 8, the fixed plate 7 is arranged to realize the fixation of the first side plate 1 and the second side plate 2 and to mount the transmission rotating shaft 12, so that the structure is very compact and the layout is very reasonable.

[0026] Referring to Figs. 1-3 The fixed plate 7 is fixedly arranged between the first side plate 1 and the second side plate 2 by welding. The first side plate 1 and the second side plate 2 are symmetrically arranged, the inner wall distance between the first side plate 1 and the second side plate 2 is 418 mm, and the distance is suitable for a standard tobacco seedling tray.

[0027] Referring to Figs. 1-3A top rod limiting frame 10 is provided between the first side plate 1 and the second side plate 2. One end of the top rod limiting frame 10 is fixedly connected to the first side plate 1, and the other end is fixedly connected to the second side plate 2. A through hole is provided on the top rod limiting frame 10 at a position corresponding to the top rod, and the top rod passes through the through hole. In the above structure, the limiting groove 8 and the top rod limiting frame 10 cooperate with the top rod assembly 9. During the reciprocating motion of the top rod assembly 9, the limiting groove 8 restricts the lateral movement of the top rod. The top rod limiting frame 10 is fixed to the two side plates (the first side plate 1 and the second side plate 2) by bolts. The top rod moves within the through hole on the top rod limiting frame 10, which can realize the follow-up process when the top rod is pushed out of the bottom hole of the tobacco seedling tray during continuous movement. At the same time, the top rod limiting frame 10 can also make the first side plate 1 and the second side plate 2 more stable.

[0028] See Figs. 1-3 The power mechanism includes a drive motor, a power input shaft 14 mounted on the frame, a power transmission shaft 13, a synchronous pulley set between the power input shaft 14 and the power transmission shaft 13, and a bevel gear transmission mechanism between the transmission shaft 12 and the power transmission shaft 13; the main shaft of the drive motor is connected to the power input shaft 14. With this structure, the drive motor drives the power input shaft 14, transmits power to the power transmission shaft 13 via the synchronous pulley set, and then transmits the power to the transmission shaft 12 via the bevel gear transmission mechanism.

[0029] See Figs. 1-3 The synchronous pulley sets consist of two groups, distributed on both sides of the bevel gear transmission mechanism. Each group of synchronous pulley sets includes a driving pulley 5 mounted on the power input shaft 14, a driven pulley 6 mounted on the power transmission shaft 13, and a transmission belt between the driving pulley 5 and the driven pulley 6. The bevel gear transmission mechanism includes a driving bevel gear 4 mounted on the power transmission shaft 13 and a driven bevel gear 3 mounted on the upper end of the transmission shaft 12 and meshing with the driving bevel gear 4. In the above structure, the power input shaft 14 and the power transmission shaft 13 are arranged horizontally. On the one hand, this improves the stability of the first side plate 1 and the second side plate 2. On the other hand, it saves vertical space, allowing for a larger space to be reserved in front of the tobacco seedling extraction mechanism, which can reduce damage to the tobacco seedlings during operation. At the same time, since the tobacco seedling extraction mechanism has a large horizontal span, the use of two groups of synchronous pulley sets makes the power output more uniform and improves the service life of the mechanism.

[0030] See Figs. 1-3The synchronous pulley set has a transmission ratio of 2, and the distances of the two synchronous pulley sets from the first side plate 1 and the second side plate 2 are 50mm respectively; the transmission ratio of the bevel gear transmission mechanism is 2, and the axis of the driven bevel gear 3 coincides with the center plane between the first side plate 1 and the second side plate 2; the rotation radius of the rotary transmission rocker arm 15 is 30mm, and the length of the push rod of the push rod group 9 is 90mm.

[0031] See Figs. 1-3 The power input shaft 14 and the power transmission shaft 13 are power transmission components. The synchronous belt pulley set and bevel gear transmission mechanism on them can adjust the transmission ratio according to the actual needs of the working frequency. The power input shaft 14 can provide power to other working components as needed, and provide the transplanting function of the tobacco top-out seedling picking mechanism.

[0032] See Figs. 1-3 The rotary transmission link 11, rotary transmission rocker arm 15, and push rod assembly 9 are connected by bearings and pins; the rotary transmission rocker arm 15 is fixedly connected to the transmission shaft 12. The bevel gear transmission mechanism inputs torque force to the transmission shaft 12, which drives the push rod assembly 9 through the rotary transmission rocker arm 15 and rotary transmission link 11. This transmission mechanism enables the reciprocating motion of the push rod assembly 9.

[0033] See Figs. 1-3 The axis of the power input shaft 14 and the axis of the power transmission shaft 13 are located on the same vertical plane. The power input shaft 14 is located above the power transmission shaft 13, and both ends are equipped with diamond-shaped bearing seats. The diamond-shaped bearing seats and the side plates are coaxially connected through corresponding holes on the outer wall of the side plates and are fixedly connected by bolts. The purpose is to further improve the compactness of the structure, while better reserving space in front of the tobacco top-out seedling picking mechanism to facilitate seedling picking operations.

[0034] See Figs. 1-3 The power input shaft 14 and the power transmission shaft 13 are mounted on the first side plate 1 and the second side plate 2 via bearings. The diameter of the holes on the side plates is 12mm, and the corresponding holes are coaxial, that is, the diameter of the power input shaft 14 and the power transmission shaft 13 is 12mm.

[0035] See Figs. 1-3 The driving pulley 5 and the driven pulley 6 are fixed to the power input shaft 14 and the power transmission shaft 13 respectively by set screws; the driving bevel gear 4 is fixed to the power transmission shaft 13 by a key and keyway. The driven bevel gear 3 is connected to the upper end of the transmission shaft 12 and fixed to the fixing plate 7 by a flange.

[0036] See Figs. 1-3Each set of synchronous pulleys includes a driving pulley 5 on the power input shaft 14, a driven pulley 6 on the power transmission shaft 13, and a transmission belt between the driving pulley 5 and the driven pulley 6; the bevel gear transmission mechanism includes a driving bevel gear 4 on the power transmission shaft 13 and a driven bevel gear 3 on the upper end of the transmission shaft 12 and meshing with the driving bevel gear 4.

[0037] See Figs. 1-3 The two holes at symmetrical positions on the vertical plane of the top rod assembly 9 are connected to the holes on the fixing plate 7 by springs. The function of the springs is to reset the top rod assembly.

[0038] See Figs. 1-3 The working principle of the above-mentioned tobacco seedling ejection mechanism is as follows:

[0039] During operation, the power mechanism drives the transmission shaft 12 to rotate, which in turn drives the rotary transmission rocker arm 15 to rotate, thereby driving the rotary transmission connecting rod 11 to move, which in turn drives the top rod assembly 9 to reciprocate on the frame, thereby pushing the tobacco seedling tray out and realizing the automatic seedling picking operation in tobacco seedling transplanting.

[0040] The above are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above content. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. A tobacco seedling ejection mechanism, characterized in that, The device includes a frame, a push rod assembly mounted on the frame, and an ejection drive mechanism for driving the push rod assembly to reciprocate ejecting motion on the frame. The ejection drive mechanism includes a transmission shaft, a rotary transmission rocker arm, a rotary transmission connecting rod, and a power mechanism. The transmission shaft is rotatably mounted on the frame. The power mechanism is connected to the upper end of the transmission shaft and is used to drive the transmission shaft to rotate. One end of the rotary transmission rocker arm is connected to the lower end of the transmission shaft. The other end of the rotary transmission rocker arm is hinged to one end of the rotary transmission connecting rod. The other end of the rotary transmission connecting rod is hinged to the push rod assembly.

2. The tobacco seedling ejection mechanism according to claim 1, characterized in that, The frame is provided with limiting grooves on both sides, and the two ends of the top rod assembly are respectively slidably engaged with the limiting grooves on both sides of the frame.

3. The tobacco seedling ejection mechanism according to claim 2, characterized in that, The push rod assembly includes a push rod mounting plate and a plurality of push rods disposed on the push rod mounting plate; the push rod mounting plate is slidably engaged with the limiting groove, and the rotary transmission connecting rod is hinged to the push rod mounting plate.

4. The tobacco seedling ejection mechanism according to claim 3, characterized in that, The frame includes a first side plate, a second side plate, and a fixed plate fixedly disposed between the first side plate and the second side plate. The transmission shaft is rotatably disposed on the fixed plate, and two limiting grooves are respectively disposed on the first side plate and the second side plate.

5. A tobacco seedling ejection mechanism according to claim 4, characterized in that, A top rod limiting frame is provided between the first side plate and the second side plate. One end of the top rod limiting frame is fixedly connected to the first side plate, and the other end is fixedly connected to the second side plate. A through hole is provided on the top rod limiting frame at a position corresponding to the top rod, and the top rod passes through the through hole.

6. A tobacco seedling ejection mechanism according to claim 1, characterized in that, The power mechanism includes a drive motor, a power input shaft mounted on the frame, a power transmission shaft, a synchronous pulley set between the power input shaft and the power transmission shaft, and a bevel gear transmission mechanism between the transmission shaft and the power transmission shaft; the main shaft of the drive motor is connected to the power input shaft.

7. A tobacco seedling ejection mechanism according to claim 6, characterized in that, The synchronous pulley sets are in two groups, distributed on both sides of the bevel gear transmission mechanism; each group of synchronous pulley sets includes a driving pulley disposed on the power input shaft, a driven pulley disposed on the power transmission shaft, and a transmission belt disposed between the driving pulley and the driven pulley; the bevel gear transmission mechanism includes a driving bevel gear disposed on the power transmission shaft and a driven bevel gear disposed on the upper end of the transmission shaft and meshing with the driving bevel gear.

8. A tobacco seedling ejection mechanism according to claim 7, characterized in that, The axis of the power input shaft and the axis of the power transmission shaft are on the same vertical plane; the power input shaft is located above the power transmission shaft.

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