Ejection type transplanter for rape pot seedlings

Abstract

The invention relates to an ejection type transplanting machine for rape pot seedlings, and relates to the technical field of rape planting. Comprising an ejection type seedling taking and separating device, a power chassis, a transmission system, a seedling conveying righting mechanism, a supporting structure and a ditching and soil covering mechanism, the supporting structure is mounted on a rear suspension system of the power chassis, is responsible for connecting and supporting the ejection type seedling taking and separating devices, the transmission system, the ditching and soil covering mechanism and the seedling conveying and righting mechanism and is fixedly connected with the power chassis, and the ejection type seedling taking and separating devices are arranged above the supporting structure and are powered by the transmission system to realize ejection, seedling taking and seedling separating actions; the transmission system is connected with the power chassis and the ejection type seedling taking and separating device to transmit power, and the power chassis is responsible for providing power for the whole machine and lifting the whole machine; and the ditching and earthing mechanism and the seedling conveying and righting mechanism are arranged below the rack and finish ditching and earthing planting work. The rape pot seedling transplanter provided by the invention is efficient, stable and high in automation degree, so that the transplanting efficiency and quality are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of rapeseed planting, and particularly to a rapeseed pot seedling pushing-out type transplanter. Background Art

[0002] The research and development of rapeseed transplanters stems from the limitations of traditional planting methods. Manual transplanting has low efficiency and high labor intensity. Each person can only transplant 0.5 - 1 mu per day, and the cost is high. Although direct seeding saves labor, it is easily affected by climate and weeds, resulting in uneven emergence and unstable yields. With the shortage of rural labor and the promotion of large-scale planting, the demand for agricultural mechanization is becoming increasingly urgent. Early transplanters mainly borrowed vegetable transplanting technologies. However, due to the brittle stems and tender leaves of rapeseed seedlings, traditional machines are likely to damage the seedlings, and have high requirements for plant spacing, uprightness, and soil adaptability, resulting in unstable transplanting quality. In addition, the performance of transplanters varies greatly in heavy clay or sandy soils, restricting their popularization.

[0003] In the southern multi-cropping planting areas (such as the "rice - rapeseed" and "double-cropping rice - rapeseed" rotation modes), there are still major challenges. The traditional blanket seedling transplanting method has a high root damage rate and a long green-recovery period after transplanting, making it difficult to meet the timeliness requirements of crop rotation, and affecting the overwintering of strong rapeseed seedlings and yield improvement. In contrast, the pot seedling transplanting technology can effectively protect the roots of seedlings, significantly shorten the green-recovery period, and improve the transplanting survival rate, thus becoming an important development direction for rapeseed mechanized transplanting. With the increasing maturity of pot seedling raising technology, its successful application in crops such as vegetables and tobacco provides a technical reference for rapeseed pot seedling transplanting. However, currently, rapeseed pot seedling transplanters on the market generally have problems such as high labor intensity, complex structure, low automation level, and unsatisfactory planting effects, restricting the popularization and application of this technology.

[0004] Therefore, how to provide a rapeseed pot seedling pushing-out type transplanter with high efficiency, stability, and high automation level to improve the transplanting efficiency and quality and meet the agronomic requirements of modern rapeseed planting has become an urgent technical problem for those skilled in the art. Summary of the Invention

[0005] The purpose of the present invention is to design a rapeseed pot seedling pushing-out type transplanter to solve the problems of low seedling picking efficiency, high machine cost, complex structure, and large damage existing in the current rapeseed pot seedling transplanting process.

[0006] To achieve the above purpose, the present invention provides a rapeseed pot seedling pushing-out type transplanter, including: a pushing-out type seedling picking and separating device, a power chassis, a transmission system, a seedling conveying and straightening mechanism, a support structure, and a ditch opening and soil covering mechanism;

[0007] The support structure is installed on the rear suspension system of the power chassis, and is responsible for connecting and supporting the ejecting type seedling picking and separating device, the transmission system, the furrowing and soil covering mechanism, the seedling conveying and straightening mechanism and is fixedly connected to the power chassis. The ejecting type seedling picking and separating device is arranged above the support structure and is powered by the transmission system to realize the actions of ejecting, picking and separating seedlings; the transmission system is interconnected with the power chassis and the ejecting type seedling picking and separating device to transmit power, and the power chassis is responsible for providing power for the whole machine and lifting the whole machine; the furrowing and soil covering mechanism and the seedling conveying and straightening mechanism are installed below the frame and complete the work of furrowing, soil covering and planting.

[0008] Further, the power chassis includes a power head and a suspension system, and the suspension system is located at the rear end of the power head and is hinged to the power head.

[0009] Further, the support structure includes a main beam, a hanging joint, a hanging sleeve, a tension spring, a frame, a frame connecting piece and a seedling guide cylinder fixing ring; the hanging joint is hung on the suspension system, the hanging sleeve is connected to the hanging joint through a bearing, and the hanging sleeve is connected to the main beam by bolts below; one end of the tension spring is connected to the hanging joint and the other end is connected to the main beam; the frame is fixed on the main beam to provide support for the ejecting type seedling picking and separating device, the frame connecting piece is fixed on the frame and is connected to the soil covering mechanism to provide support, and the seedling guide cylinder fixing ring is fixed on the frame connecting piece to provide support for the seedling conveying and straightening mechanism.

[0010] Further, a plurality of ejecting type seedling picking and separating devices are provided, arranged and installed on the support structure and fixed by bolts. Adjacent ejecting type seedling picking and separating devices are connected by a bushing and powered by the transmission system through a chain.

[0011] Further, the ejecting type seedling picking and separating device includes a seedling tray downward conveying mechanism, an ejecting and picking mechanism, a seedling receiving mechanism and a conveying and separating mechanism. The seedling tray downward conveying mechanism is arranged on both sides of the support structure, the ejecting and picking mechanism is connected inside the support structure, the seedling receiving mechanism is arranged below the ejecting and picking mechanism and is connected inside the support structure, and the conveying and separating mechanism is arranged below the seedling receiving mechanism and is connected to the support structure; connected to the seedling tray downward mechanism, the seedling ejecting mechanism, the seedling receiving mechanism and the conveying and separating mechanism respectively through a chain. After the power input passes through the transmission system, it drives the seedling tray downward mechanism to convey the seedling tray. After the seedling tray is conveyed to the top picking position of the rapeseed plug seedlings, the seedling ejecting mechanism is driven to eject the plug seedlings in the seedling tray. At the same time, the seedling receiving mechanism is driven by chain drive to catch and clamp the ejected rapeseed plug seedlings below, and then turn them over and put them into the conveying and separating mechanism to realize the seedling separating function.

[0012] Further, the seedling conveying and straightening mechanism includes a seedling guide cylinder, and the seedling guide cylinder is fixedly installed by a seedling guide cylinder fixing ring and is responsible for the work of conveying, straightening and dropping the rapeseed plug seedlings.

[0013] Furthermore, the ditching and soil covering mechanism includes a ditching tool, ditching tool side plates, a square pipe for fixing the ditching tool, soil covering wheels, a fixing frame, and a profiling spring. The ditching tool side plates are fixed to the ditching tool. The upper end of the ditching tool is connected to the square pipe for fixing the ditching tool. The square pipe for fixing the ditching tool is connected to the main beam by bolts to fix the ditching and soil covering mechanism. The soil covering wheels are installed on both sides of the fixing frame for covering soil on the rape pot seedlings. One side of the upper end of the fixing frame is hinged to the connecting rod of the machine frame. A profiling spring is also installed between the upper end of the fixing frame and the machine frame connecting part for profiling.

[0014] Furthermore, the transmission system includes a PTO power output shaft, a right-angle reducer, a chain, the main transmission shaft of the ejecting, picking, and separating seedling device, the driving shaft of the ejecting and picking seedling mechanism, the driving shaft of the conveying and separating seedling mechanism, the driving shaft of the seedling tray pulling and conveying mechanism, and the driving shaft of the seedling receiving mechanism. One end of the PTO power output shaft is connected to the right-angle reducer, and the other end is connected to the power chassis. One side end of the main transmission shaft of the ejecting, picking, and separating seedling device is connected to the right-angle reducer by a chain. Both sides of the main transmission shaft of the ejecting, picking, and separating seedling device are driven and connected to the driving shaft of the seedling tray pulling and conveying mechanism by chains. The driving shaft of the conveying and separating seedling mechanism is also driven and connected to the main transmission shaft of the ejecting, picking, and separating seedling device. The middle part of the main transmission shaft of the ejecting, picking, and separating seedling device is driven and connected to the driving shaft of the seedling receiving mechanism by a chain. The driving shaft of the seedling receiving mechanism is driven and connected to the driving shaft of the ejecting and picking seedling mechanism by a chain.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. The present invention uses the crank-slider intermittent conveying method to convey the seedling tray. When the device works, the main transmission shaft drives the driving shaft of the seedling tray conveying mechanism to pull down the seedling tray to the rated position to complete the positioning of the seedling tray before picking seedlings. Therefore, the present invention can accurately pick seedlings from the seedling holes of the seedling tray.

[0017] 2. The present invention uses the ejecting seedling method. By ejecting from the bottom of the rape, it can effectively avoid damaging the rape pot seedlings during the seedling picking process. And the multi-mechanism linkage can complete the seedling picking and separating actions. The machine tool cost is low, and the seedling picking efficiency is high.

[0018] 3. The present invention uses the functional cooperation between the ditching and soil covering mechanism and the ejecting type picking and separating seedling device to ensure the synchronization of the conveying, seedling picking, seedling separating, and transplanting operations. Compared with other transplanters, the operation quality of the present invention is significantly improved, and it has the advantages of simple structure, reliable work, and little damage to the rape pot seedlings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the ejecting type transplanter for rape pot seedlings provided by the present invention;

[0020] Figure 2 Schematic diagram of the power chassis structure provided by the present invention;

[0021] Figure 3 Schematic diagram of the ejecting type seedling picking and separating device provided by the present invention;

[0022] Figure 4 Schematic diagram of the support structure provided by the present invention;

[0023] Figure 5 Schematic diagram of the transmission system provided by the present invention;

[0024] Figure 6 Schematic diagram of the ditching and soil covering mechanism provided by the present invention Figure 1 ;

[0025] Figure 7 Schematic diagram of the ditching and soil covering mechanism provided by the present invention Figure 2 ;

[0026] Figure 8 Schematic diagram of the seedling conveying and straightening structure provided by the present invention.

[0027] In the figure: 1 is the ejecting seedling picking and separating device; 2 is the transmission system; 3 is the seedling conveying and straightening mechanism; 4 is the ditching and soil covering mechanism; 5 is the support structure; 6 is the power chassis; 7 is the power engine head; 8 is the suspension system; 9 is the ejecting seedling picking mechanism; 10 is the seedling tray downward conveying mechanism; 11 is the conveying and seedling separating mechanism; 12 is the seedling receiving mechanism; 13 is the frame; 14 is the frame connecting piece; 15 is the main beam; 16 is the tension spring; 17 is the turnbuckle; 18 is the hanging sleeve; 19 is the hanging joint; 20 is the seedling guiding cylinder fixing ring; 21 is the driving shaft of the ejecting seedling picking mechanism; 22 is the driving shaft of the conveying and seedling separating mechanism; 23 is the driving shaft of the seedling tray downward conveying mechanism; 24 is the PTO power output shaft; 25 is the chain; 26 is the right-angle reducer; 27 is the main driving shaft of the ejecting seedling picking and separating device; 28 is the driving shaft of the seedling receiving mechanism; 29 is the profiling spring; 30 is the fixing bracket; 31 is the soil covering wheel; 32 is the fixing square pipe of the ditching tool; 33 is the side plate of the ditching tool; 34 is the ditching tool; 35 is the seedling guiding cylinder. Detailed implementation manners

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] It should be noted that the terms "first", "second", etc. in the description, claims and the above-mentioned drawings of this application are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances for the embodiments of this application described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily limit to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0030] In this application, the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe this application and its embodiments, and are not used to limit that the indicated devices, elements or components must have a specific orientation or be constructed and operated in a specific orientation.

[0031] Moreover, in addition to being used to represent an orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0032] In addition, the terms "install", "set", "provided with", "connect", "connected", "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there is an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0033] See Figure 1-8The present embodiment discloses a rapeseed pot seedling ejection type transplanter, comprising: an ejection type seedling taking and separating device 1, a power chassis 6, a transmission system 2, a seedling transporting and straightening mechanism 3, a supporting structure 5 and a furrowing and soil covering mechanism 4. The supporting structure 5 is installed in the rear suspension system 8 of the power chassis 6, which is responsible for connecting the support clamp ejection type seedling taking and separating device 1, the transmission system 2, the furrowing and soil covering mechanism 4, the seedling transporting and straightening mechanism 3 and is fixedly connected to the power chassis 6. The ejection type seedling taking and separating device 1 is installed above the supporting structure 5 and arranged in an arranged manner and is powered by the transmission system 2 to realize the ejection, seedling taking and seedling separation actions. The transmission system 2 is connected to the power chassis 6 and the ejection type seedling taking and separating device 1 to transmit power to each other. The power chassis 6 is responsible for providing power and lifting work for the whole machine. The furrowing and soil covering mechanism 4 and the seedling transporting and straightening mechanism 3 are installed under the supporting structure 5 and complete the furrowing and soil covering and planting work. The present invention designs the ejection type seedling taking and separating, and the transporting, furrowing and planting functions to be linked, so that the transplanter takes seedlings in an orderly and accurate manner, and the transplanting row spacing is stable, thereby ensuring efficient seedling taking operation results. The present invention provides an efficient, stable and highly automated rapeseed pot seedling transplanter to improve transplanting efficiency and quality and meet the agronomic requirements of modern rapeseed cultivation.

[0034] In this embodiment, the power chassis 6 includes a power head 7 and a suspension system 8 . The suspension system 8 is located at the rear end of the power head 7 and is hinged to the power head 7 .

[0035] In this embodiment, the support structure 5 includes a main beam 15, a hanging joint 19, a hanging sleeve 18, a tension spring 16, a frame 13, a frame connecting piece 14 and a seedling guide tube fixing ring 20. The hanging joint 19 is hung on the rear suspension system 8 of the power chassis 6, the hanging sleeve 18 is connected to the hanging joint 19 through a bearing, and the bottom of the hanging sleeve 18 is connected to the main beam 15 by a bolt. One end of the tension spring 16 is connected to the hanging joint 19, and the other end is connected to the main beam 15 through a basket screw 17. The frame 13 is fixed on the main beam 15 and is responsible for providing support for the ejection type seedling taking and separating device 1. The frame connecting piece 14 is fixed on the frame 13 and connected to the ditching and covering mechanism 4 to provide support. The seedling guide tube fixing ring 20 is fixed on the frame connecting piece 14 and is responsible for providing support for the seedling guide tube 35.

[0036] In this embodiment, a plurality of ejecting type seedling picking and separating devices 1 are provided. The plurality of ejecting type seedling picking and separating devices 1 are arranged and installed on a support structure 5 and fixed by bolts. Adjacent ejecting type seedling picking and separating devices 1 are connected by a bushing and powered by a transmission system through a chain 25. The ejecting type seedling picking and separating device 1 includes a seedling tray downward conveying mechanism 10, an ejecting seedling picking mechanism 9, a seedling receiving mechanism 12, and a conveying and separating mechanism 11. The seedling tray downward conveying mechanism 10 is arranged on both sides of the support structure. The ejecting seedling picking mechanism 9 is connected to the support structure inside the support structure. The seedling receiving mechanism 12 is below the ejecting seedling picking mechanism 9 and inside the support structure and connected to the support structure. The conveying and separating mechanism 11 is connected to the support structure below the seedling receiving mechanism 12 and is respectively connected to the seedling tray downward conveying mechanism 10, the ejecting seedling picking mechanism 9, the seedling receiving mechanism 12, and the conveying and separating mechanism 11 through the chain 25. After the power input passes through the transmission system 2, the seedling tray downward conveying mechanism 10 is driven to convey the seedling tray. After the seedling tray is conveyed to the position for ejecting and picking the rapeseed plug seedlings, the ejecting seedling picking mechanism 9 is driven to eject the plug seedlings in the seedling tray. At the same time, the seedling receiving mechanism 12 is driven by chain drive to catch and clamp the ejected rapeseed plug seedlings below, and then turn and place them into the conveying and separating mechanism to achieve the seedling separating function.

[0037] In this embodiment, the seedling conveying and straightening mechanism 3 includes a seedling guiding cylinder 35, and the seedling guiding cylinder 35 is fixedly installed by a seedling guiding cylinder fixing ring 20 and is responsible for the work of conveying, straightening, and dropping the rapeseed plug seedlings.

[0038] In this embodiment, the ditching and soil covering mechanism 4 includes a ditching tool 34, ditching tool side plates 33, a ditching tool fixing square pipe 32, soil covering wheels 31, a fixing frame 30, and a profiling spring 29. The ditching tool side plates 33 are fixed to the ditching tool 34. The upper end of the ditching tool 34 is connected to the ditching tool fixing square pipe 32. The ditching tool fixing square pipe 32 is connected to the main beam 15 by bolts to fix the whole ditching tool. The soil covering wheels 31 are installed on both sides of the fixing frame 30 for covering soil for the rapeseed plug seedlings. The upper end of the fixing frame 30 is hinged to the frame connecting rod 14 to fix the soil covering mechanism. The other end of the fixing frame 30 and the frame connecting part 14 are installed with a profiling spring 29 for profiling.

[0039] In this embodiment, the transmission system 2 includes a PTO power output shaft 24, a right-angle reducer 26, a chain 25, a main transmission shaft 27 of the ejecting, picking and seedling separating device, a driving shaft 21 of the ejecting and picking seedling mechanism, a driving shaft 22 of the conveying and seedling separating mechanism, a driving shaft 23 of the seedling tray downward conveying mechanism, and a driving shaft 28 of the seedling receiving mechanism. One end of the PTO power output shaft 24 is connected to the right-angle reducer 26, and the other end is connected to the power chassis 6. One side of the main transmission shaft 27 of the ejecting, picking and seedling separating device is connected to the right-angle reducer 26 through a chain. Both sides of the main transmission shaft 27 of the ejecting, picking and seedling separating device are drivingly connected to the driving shaft 23 of the seedling tray downward conveying mechanism through the chain 25, and the driving shaft 22 of the conveying and seedling separating mechanism is drivingly connected to the main transmission shaft 27 of the ejecting, picking and seedling separating device. The middle of the main transmission shaft 27 of the ejecting, picking and seedling separating device is drivingly connected to the driving shaft 28 of the seedling receiving mechanism through the chain 25, and the driving shaft 28 of the seedling receiving mechanism is drivingly connected to the driving shaft 21 of the ejecting and picking seedling mechanism through a chain. The present invention jointly drives three ejecting, picking and seedling separating devices 1 to complete the work of picking seedlings, receiving seedlings, sending seedlings and separating seedlings, and completes the transplanting work of rapeseed pot seedlings together with the ditch opening and soil covering mechanism 4 and the seedling conveying and straightening mechanism 3.

[0040] The above are only preferred embodiments of the present invention, and do not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A rapeseed plug seedling pushing-out type transplanter, characterized in that It includes: An ejecting type seedling picking and separating device, a power chassis, a transmission system, a seedling conveying and straightening mechanism, a support structure, and a furrowing and soil covering mechanism; The support structure is installed on the rear suspension system of the power chassis, responsible for connecting and supporting the ejecting type seedling picking and separating device, the transmission system, the furrowing and soil covering mechanism, and the seedling conveying and straightening mechanism and being fixedly connected to the power chassis. The ejecting type seedling picking and separating device is arranged above the support structure and powered by the transmission system to realize the actions of ejecting, picking, and separating seedlings; the transmission system is interconnected with the power chassis and the ejecting type seedling picking and separating device to transmit power. The power chassis is responsible for providing power for the whole machine and lifting the whole machine for work; the furrowing and soil covering mechanism and the seedling conveying and straightening mechanism are installed below the frame and complete the work of furrowing and soil covering for planting.

2. The top ejection type rapeseed plug seedling transplanter according to claim 1, wherein The power chassis includes a power head and a suspension system. The suspension system is located at the rear end of the power head and is hinged to the power head.

3. The one kind of rape pot-seedling pushing-out type transplanter according to claim 2, characterized in that, The support structure includes a main beam, a hanging joint, a hanging sleeve, a tension spring, a frame, a frame connecting piece, and a seedling guide cylinder fixing ring; the hanging joint is hung on the suspension system, the hanging sleeve is connected to the hanging joint through a bearing, and the hanging sleeve is connected to the main beam by bolts below; one end of the tension spring is connected to the hanging joint, and the other end is connected to the main beam; the frame is fixed on the main beam to provide support for the ejecting type seedling picking and separating device, the frame connecting piece is fixed on the frame and connected to the soil covering mechanism to provide support, and the seedling guide cylinder fixing ring is fixed on the frame connecting piece to provide support for the seedling conveying and straightening mechanism.

4. The top-pushing type rapeseed plug seedling transplanter according to claim 1, characterized in that A plurality of ejecting type seedling picking and separating devices are provided, arranged and installed on the support structure and fixed by bolts. Adjacent ejecting type seedling picking and separating devices are connected by a bushing and powered by the transmission system through a chain.

5. The rape pot seedling ejecting type transplanter according to claim 4, characterized in that, The ejecting type seedling picking and separating device includes a seedling tray downward conveying mechanism, an ejecting and picking mechanism, a seedling receiving mechanism, and a conveying and separating mechanism. The seedling tray downward conveying mechanism is arranged on both sides of the support structure, the ejecting and picking mechanism is connected inside the support structure, the seedling receiving mechanism is arranged below the ejecting and picking mechanism and connected inside the support structure, and the conveying and separating mechanism is arranged below the seedling receiving mechanism and connected to the support structure; it is respectively connected to the seedling tray downward mechanism, the seedling ejecting mechanism, the seedling receiving mechanism, and the conveying and separating mechanism through a chain. After the power input passes through the transmission system, it drives the seedling tray downward mechanism to convey the seedling tray. After the seedling tray is conveyed to the top picking position of the rapeseed pot seedlings, the seedling ejecting mechanism is driven to eject the pot seedlings in the seedling tray. At the same time, the seedling receiving mechanism is driven by chain drive to catch and clamp the ejected rapeseed pot seedlings below, and then turn and put them into the conveying and separating mechanism to realize the seedling separating function.

6. The push-out type rapeseed plug seedling transplanter according to claim 3, characterized in that, The seedling conveying and straightening mechanism includes a seedling guide cylinder, which is fixedly installed by the seedling guide cylinder fixing ring and is responsible for the work of conveying, straightening, and dropping rapeseed pot seedlings.

7. The rape pot-seedling ejecting type transplanter according to claim 3, characterized in that, The trenching and covering mechanism includes a trench opener, a trench opener side plate, a trench opener fixed square tube, a covering wheel, a fixing frame and a contour spring. The trench opener side plate is fixed to the trench opener, the upper end of the trench opener is connected to the trench opener fixed square tube, and the trench opener fixed square tube is connected to the main beam by bolts for fixing the trenching and covering mechanism; the covering wheels are installed on both sides of the fixing frame for covering the rapeseed seedlings with soil, one side of the upper end of the fixing frame is hinged to the frame connecting rod, and a contour spring is also installed between the upper end of the fixing frame and the frame connecting piece for contouring.

8. The push-out type rapeseed plug seedling transplanter according to claim 5, characterized in that The transmission system includes a PTO power output shaft, a right-angle reducer, a chain, a main transmission shaft of the ejecting and seedling separation device, a driving shaft of the ejecting and seedling separation mechanism, a driving shaft of the conveying and seedling separation mechanism, a driving shaft of the seedling tray pulling down conveying mechanism and a driving shaft of the seedling receiving mechanism; one end of the PTO power output shaft is connected to the right-angle reducer, and the other end is connected to the power chassis; one end portion of the main transmission shaft of the ejecting and seedling separation device is connected to the right-angle reducer by a chain, and both sides of the main transmission shaft of the ejecting and seedling separation device are transmission-connected to the driving shaft of the seedling tray pulling down conveying mechanism by a chain, and the main transmission shaft of the ejecting and seedling separation device is transmission-connected with the driving shaft of the conveying and seedling separation mechanism, the middle part of the main transmission shaft of the ejecting and seedling separation device is transmission-connected to the driving shaft of the seedling receiving mechanism by a chain, and the driving shaft of the seedling receiving mechanism is transmission-connected to the driving shaft of the ejecting and seedling separation mechanism by a chain.

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