A combined device of plug tray carrier and double-tray seedling conveying wheel for oilseed rape transplanter

Abstract

The utility model belongs to the technical field of oilseed rape planting equipment, especially relates to a kind of hole tray bracket and double support seedling wheel combination device for oilseed rape transplanting machine.It includes support mounting seat, the support mounting seat includes support bottom plate, and the support bottom plate is equipped with left and right two groups of bracket structure, and the left and right two groups of bracket structure accommodate one mouse cage type seedling wheel respectively, and the space formed by one mouse cage type seedling wheel and a group of bracket structure is used to place one hole tray.The utility model adopts left and right two groups of bracket structure independent of each other, and one mouse cage type seedling wheel is configured in each group, and double support working position is formed.The layout can change hole tray on one side at the same time, and the other side continuously supplies seedling, significantly improves operation continuity and feeding rhythm stability, reduces downtime caused by changing tray, to improve the whole machine operation efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of rapeseed planting equipment technology, specifically relating to a combination device of seedling tray bracket and double seedling delivery wheel for rapeseed transplanter. Background Technology

[0002] When rapeseed transplanters operate in the field, they typically use seedling trays containing potted seedlings as carriers, continuously delivering the seedlings to the seedling picking / separating mechanism in a rhythmic sequence. This, combined with downstream units such as ditching and soil covering, completes the transplanting process. Currently, the mechanisms for supporting and transporting the seedling trays on existing transplanters are mostly single-carryer structures or use belt / roller friction drives. The contact between the seedling tray and the conveying components is often surface or line contact, lacking reliable positive meshing and positioning. Under uneven field conditions and machine vibration, the seedling tray is prone to slippage, displacement, or even jumping out of the guide zone, affecting the accuracy of seedling picking and the stability of the rhythm.

[0003] To suppress deviation, some devices add simple pressure strips or baffles above the conveying channel. However, their relative position to the conveying components is not adjustable, and they only provide unidirectional pressure, making it difficult to simultaneously address left and right limits as well as top limits. This results in poor compatibility with different types of seedling trays. Other devices use cage-type rollers as seedling delivery components, but these rely heavily on friction between the roller surface and the bottom of the seedling tray, failing to achieve a matching insertion with the structural features of the tray's bottom, leading to limited positioning reliability.

[0004] Furthermore, the traditional single-tray layout can only accommodate one seedling tray at a time, and frequent changes in delivery interrupt the continuity of operations, limiting work efficiency. Insufficient rigidity of the tray frame or poor coaxiality of the shaft system can also cause roller runout and uneven meshing, further increasing the risk of jamming and seedling drop. In summary, existing technologies still have room for improvement in terms of dual-tray load-bearing capacity, positive positioning, three-way limiting, and adaptability. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the above-mentioned background technology and provide a combination device of seedling tray bracket and double seedling delivery wheel for rapeseed transplanter.

[0006] The technical solution adopted by this utility model is: a combination device of seedling tray bracket and double seedling delivery wheel for rapeseed transplanter, including a bracket mounting base, the bracket mounting base including a bracket base plate, the bracket base plate is provided with two sets of bracket structures on the left and right at intervals, the left and right sets of bracket structures respectively accommodate a cage-type seedling delivery wheel, and the space formed by the cage-type seedling delivery wheel and a set of bracket structures is used to place a seedling tray.

[0007] Preferably, each bracket structure includes two parallel and spaced-apart support side plates and multiple parallel and spaced-apart intermediate partition plates. The bottom edge of the support side plate is fixedly connected to the support base plate, and the multiple intermediate partition plates are fixed on the partition mounting shaft. The partition mounting shaft is perpendicular to the intermediate partition plates, and both ends of the partition mounting shaft are fixed to the two support side plates respectively.

[0008] Preferably, the cage-type seedling delivery wheel includes multiple circular plates, which are parallel to each other and evenly spaced. A central shaft runs through the center of each circular plate. The two ends of the central shaft are rotatably connected to the side plates of the support via bearing seats. The outer edges of the multiple circular plates are connected by multiple connecting rods evenly distributed along the central shaft. The connecting rods are parallel to each other, parallel to the central shaft and perpendicular to the plane where the circular plates are located. The multiple connecting rods and the multiple circular plates form multiple rectangular grids.

[0009] Preferably, the cage-type seedling delivery wheel is further provided with two side wing plates and one intermediate wing plate. The two side wing plates are located on both sides of the intermediate wing plate and are parallel to each other. The two side wing plates and the intermediate wing plate are all fixedly connected to the wing plate mounting shaft. The two ends of the wing plate mounting shaft are respectively fixed to the two support side plates. The wing plate mounting shaft is perpendicular to the two side wing plates and the intermediate wing plate. The inner surfaces of the two side wing plates are respectively in contact with the end faces of the two ends of the multiple connecting rods to limit the left and right movement of the cage-type seedling delivery wheel. The lower edge of the intermediate wing plate abuts against the outer cylindrical surface of the connecting rod to limit the upper movement of the cage-type seedling delivery wheel.

[0010] Preferably, the seedling tray includes a base plate, one side of which has a groove for supporting rapeseed seedlings, and the other side of which has a protrusion corresponding to the groove. The protrusion is located within a plurality of rectangular squares formed by the multiple connecting rods and the multiple circular plates.

[0011] Preferably, the bottom plate of the cavity plate is fitted with the side edges of the two side wing plates and the middle wing plate.

[0012] Preferably, the partition mounting shaft comprises multiple parallel shafts.

[0013] Preferably, the wing plate mounting shaft comprises multiple parallel shafts.

[0014] Preferably, the inner edges of the two side wing plates and the middle wing plate form a V-shaped guide angle α for guiding the cavity plate into place, wherein α is 60° to 120°.

[0015] Preferably, the bottom of the bracket base plate is provided with connecting ears on both sides.

[0016] This invention employs two independent bracket structures, one on the left and one on the right, with each bracket containing a cage-type seedling feeder, forming a double-bracket working position. This layout allows for continuous seedling supply from one side while the seedling trays are being changed, significantly improving operational continuity and feeding cycle stability, reducing downtime caused by tray changes, and thus enhancing overall machine efficiency.

[0017] The cage-type seedling delivery wheel consists of several circular plates and connecting rods evenly distributed along the central axis. The rectangular grid formed by these plates matches the protrusions on the bottom of the seedling tray, creating a positive insertion and positioning. This structure provides reliable anti-slip positioning while ensuring smooth assembly, suppressing relative displacement and "jumping" of the seedling tray under vibration and road impact.

[0018] Two side wing plates and one middle wing plate are installed above the cage-type seed delivery wheel. The side wing plates abut against the end of the connecting rod to form left and right limits, and the middle wing plate abuts against the outer cylindrical surface of the connecting rod to form an upper limit. The three together form a V-shaped guide channel to achieve the coordination of introduction and constraint.

[0019] The bracket frame consists of two side plates and several intermediate partition plates, forming a high-rigidity frame through mounting shafts. The central shaft of the seedling delivery wheel is preferably rotatably connected to the side plates via a bearing seat, resulting in minimal running vibration and low resistance, which helps stabilize the cycle time and extend service life. Multiple parallel wing plate mounting shafts can be configured, facilitating quick adjustment of the wing plate position and angle according to different sized seedling trays, significantly improving adaptability and versatility.

[0020] In summary, this device achieves positive positioning and three-way limiting of the seedling trays, significantly reducing the probability of slippage, deviation, jumping out, and jamming; the dual-support layout improves the continuity of seedling supply and the overall efficiency of the machine; and the optimized matching of the frame and shaft system makes the operation more stable and the maintenance simpler, making it of great value for promotion and application. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a seedling tray bracket and a double-tray seedling delivery wheel combination device for a rapeseed transplanter according to the present invention; Figure 2 This is a schematic diagram of the structure of the rat cage-type seedling delivery wheel of this utility model; Figure 3 for Figure 1 A schematic diagram of the back of a combination device for a seedling tray bracket and a double-carrying seedling wheel used in a rapeseed transplanter; In the diagram, 101-bracket mounting base, 102-bracket base plate, 103-bracket side plate, 104-middle partition plate, 105-partition plate mounting shaft, 106-connecting ear, 107-wing plate mounting shaft, 108-side wing plate, 109-middle wing plate, 201-rat cage type seedling delivery wheel, 202-circular plate, 203-central shaft, 204-connecting rod, 205-grid, 301-seedling tray, 302-base plate, 303-groove, 304-protrusion. Detailed Implementation

[0022] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0023] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0024] like Figure 1-3 As shown, the present invention includes a bracket mounting base 101, which includes a bracket base plate 102. The bracket base plate 102 is provided with two sets of left and right bracket structures at intervals. The left and right bracket structures respectively accommodate a rat cage type seedling delivery wheel 201. The space formed by a rat cage type seedling delivery wheel 201 and a set of bracket structures is used to place a seedling tray 301.

[0025] Each bracket structure includes two parallel and spaced-apart support side plates 103 and multiple parallel and spaced-apart intermediate partition plates 104. The bottom edge of the support side plate 103 is fixedly connected to the support base plate 102. The multiple intermediate partition plates 104 are fixed on the partition mounting shaft 105. The partition mounting shaft 105 and the intermediate partition plates 104 are perpendicular to each other. The two ends of the partition mounting shaft 105 are respectively fixed to the two support side plates 103.

[0026] The cage-type seedling delivery wheel 201 includes multiple circular plates 202, which are parallel to each other and evenly spaced. A central shaft 203 is provided at the center of the multiple circular plates 202. The two ends of the central shaft 203 are rotatably connected to the side plate 103 of the support through bearing seats. The outer edges of the multiple circular plates 202 are connected by multiple connecting rods 204 evenly distributed along the central shaft 203. The multiple connecting rods 204 are parallel to each other, parallel to the central shaft 203 and perpendicular to the plane where the circular plates 202 are located. The multiple connecting rods 204 and the multiple circular plates 202 form multiple rectangular grids 205.

[0027] The cage-type seedling delivery wheel 201 is also provided with two side wing plates 108 and one intermediate wing plate 109. The two side wing plates 108 are located on both sides of the intermediate wing plate 109. The two side wing plates 108 and the intermediate wing plate 109 are parallel to each other. The two side wing plates 108 and the intermediate wing plate 109 are all fixedly connected to the wing plate mounting shaft 107. The two ends of the wing plate mounting shaft 107 are respectively fixed to the two support side plates 103. The wing plate mounting shaft 107 is perpendicular to the two side wing plates 108 and the intermediate wing plate 109. The inner surfaces of the two side wing plates 108 respectively contact the end faces of the two ends of the multiple connecting rods 204 to limit the left and right movement of the cage-type seedling delivery wheel 201. The lower edge of the intermediate wing plate 109 abuts against the outer cylindrical surface of the connecting rod 204 to limit the upper movement of the cage-type seedling delivery wheel 201.

[0028] The seedling tray 301 includes a base plate 302. One side of the base plate 302 has a groove 303 for supporting rapeseed seedlings. The other side of the seedling tray 301 has a protrusion 304 corresponding to the groove 303. The protrusion 304 is located within a plurality of rectangular squares 205 formed by multiple connecting rods 204 and multiple circular plates 202.

[0029] The bottom plate 302 of the burr plate 301 is attached to the side edges of the two side wing plates 108 and the middle wing plate 109.

[0030] The partition mounting shaft 105 includes multiple shafts arranged in parallel to each other.

[0031] The wing plate mounting shaft 107 includes multiple shafts arranged in parallel to each other.

[0032] The inner edges of the two side wing plates 108 and the middle wing plate 109 form a V-shaped guide angle α for guiding the cavity plate 301 into place, where α is 60° to 120°.

[0033] The bottom of the bracket base plate 102 is provided with connecting ears 106 on both sides for installing peripheral rotating shaft components.

[0034] Working process of this utility model 1. Preparation and Adjustment: The operator adjusts the relative positions and included angle α of the three wing plates 108 and 109 on the wing plate mounting shaft 107 according to the specifications of the seedling tray 301 and the weight of the seedlings. If necessary, the operator can change the spacing between the intermediate partition plates 104 via the multiple partition mounting shafts 105 to accommodate seedling trays of different widths. Confirm that the rotational connection between the central shaft 203 and the support side plate 103 is good and there is no obvious axial movement.

[0035] 2. Feeding and Introducing: Push the full seedling tray 301 along the support base plate 102 into either the left or right bracket structure. The seedling tray base plate 302 first contacts the guide slope of the side wing plate 108 and is guided to the center of the "V" shaped channel; under its own weight and the action of the guide slope, the seedling tray is gradually pressed down, so that the bottom protrusion 304 aligns with and partially extends into the rectangular grid 205 on the outer periphery of the seedling delivery wheel 201. At this time, the side wing plate 108 provides left and right limits for the seedling tray, and the middle wing plate 109 provides upward pressure on the seedling tray to prevent it from jumping out.

[0036] 3. Engagement and Positioning: When the protrusion 304 is inserted into the rectangular grid 205 with the set mating clearance and insertion depth, the seedling tray 301 and the seedling delivery wheel 201 achieve positive engagement and positioning. This positioning establishes sufficient tangential traction capacity on the one hand, and restricts the normal and lateral displacement of the seedling tray relative to the wheel surface on the other hand, thereby improving vibration resistance and impact resistance.

[0037] 4 Feeding and indexing: The external drive does not drive the central shaft 203 to rotate, and the feed wheel 201 runs at a set speed or step distance.

[0038] Continuous mode: The seedling delivery wheel 201 rotates at a constant speed, and the circumferential movement of the connecting rod 204 sends the seedling tray 301 along the bracket channel at a stable speed to the seedling picking / separating station through the protrusion 304. Stepping indexing mode: Each rotation corresponds to the pitcher pitch of the seedling tray, making the seedling tray equally spaced in rows or columns, which facilitates the alignment of the seedling picking mechanism with the pot holes and improves the accuracy of the cycle.

[0039] In both modes, the height of the lower edge of the side plate 108 relative to the outer circle of the seed delivery wheel ensures the smoothness of the entire process of introduction, holding, and release: the introduction stage uses greater lateral constraint to suppress swaying; the operation stage uses moderate upward pressure to suppress jumping; and the release stage allows the seedling tray to smoothly leave the wheel surface without interfering with the connecting rod 204.

[0040] 5. Seedling Picking and Continuous Feeding: When the front end of the seedling tray 301 reaches the docking position, the midstream seedling picking / separating mechanism picks up the seedlings from the groove 303 in a rhythmic manner. The left and right sets of bracket structures of the device work alternately: while one side is feeding and changing trays, the other side continuously feeds seedlings, forming continuous operation without stopping the machine. The seedling feeding wheel 201 maintains positive engagement with the seedling tray throughout the process, avoiding slippage and deviation caused by mud, water, and vibration, thus improving alignment accuracy and seedling emergence stability.

[0041] 6. Exit and Replacement: As the caulking tray 301 approaches its tail end, the protrusion 304 gradually detaches from the rectangular grid 205 and is smoothly lifted off under the guidance of the "V"-shaped channel of the side wing plate 108 and the middle wing plate 109. The operator removes the empty tray from the bracket structure and replaces it with a full tray. If it is necessary to adjust to another caulking tray specification, simply adjust the relative position or included angle α of the wing plates 108 and 109 through the wing plate mounting shaft 107, and finely adjust the fitting clearance and insertion depth as needed to complete the quick changeover.

[0042] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Contents not described in detail in this specification belong to prior art known to those skilled in the art.

Claims

1. A combination device for a seedling tray support and double seedling delivery wheels for a rapeseed transplanter, comprising a support mounting base (101), characterized in that: The bracket mounting base (101) includes a bracket base plate (102), on which two sets of bracket structures are spaced apart, and the two sets of bracket structures respectively accommodate a rat cage type seedling delivery wheel (201). The space formed by the rat cage type seedling delivery wheel (201) and a set of bracket structures is used to place a seedling tray (301).

2. The combination device of seedling tray bracket and double seedling delivery wheel for rapeseed transplanter according to claim 1, characterized in that: Each bracket structure includes two parallel spaced support side plates (103) and multiple parallel spaced middle partition plates (104). The bottom edge of the support side plate (103) is fixedly connected to the support base plate (102). The multiple middle partition plates (104) are fixed on the partition mounting shaft (105). The partition mounting shaft (105) is perpendicular to the middle partition plates (104). The two ends of the partition mounting shaft (105) are respectively fixed on the two support side plates (103).

3. The combination device of seedling tray bracket and double seedling delivery wheel for a rapeseed transplanter according to claim 1, characterized in that: The cage-type seedling delivery wheel (201) includes multiple circular plates (202), which are parallel to each other and evenly spaced. A central shaft (203) is provided in the center of each circular plate (202). The two ends of the central shaft (203) are rotatably connected to the side plate (103) of the support. The outer edges of the multiple circular plates (202) are connected by multiple connecting rods (204) evenly distributed along the central shaft (203). The multiple connecting rods (204) are parallel to each other, and the connecting rods (204) are parallel to the central shaft (203) and perpendicular to the plane where the circular plates (202) are located. The multiple connecting rods (204) and the multiple circular plates (202) form multiple rectangular grids (205).

4. The combination device of seedling tray bracket and double seedling delivery wheel for a rapeseed transplanter according to claim 3, characterized in that: The cage-type seed delivery wheel (201) is also equipped with two side wing plates (108) and one intermediate wing plate (109) above it. The two side wing plates (108) are located on both sides of the intermediate wing plate (109), and the two side wing plates (108) and the intermediate wing plate (109) are parallel to each other. The two side wing plates (108) and the intermediate wing plate (109) are all fixedly connected to the wing plate mounting shaft (107). The two ends of the wing plate mounting shaft (107) are respectively fixed to two... On the side plate (103) of the support, the wing plate mounting shaft (107) is perpendicular to the two side wing plates (108) and the middle wing plate (109). The inner surfaces of the two side wing plates (108) respectively contact the end faces of the two ends of the multiple connecting rods (204) to limit the left and right movement of the rat cage type seed delivery wheel (201). The lower edge of the middle wing plate (109) abuts against the outer cylindrical surface of the connecting rod (204) to limit the upper movement of the rat cage type seed delivery wheel (201).

5. The combination device of seedling tray bracket and double seedling delivery wheel for a rapeseed transplanter according to claim 3, characterized in that: The seedling tray (301) includes a base plate (302), one side of which has a groove (303) for supporting rapeseed seedlings, and the other side of which has a protrusion (304) corresponding to the groove (303). The protrusion (304) is located within a plurality of rectangular squares (205) formed by a plurality of connecting rods (204) and a plurality of circular plates (202).

6. The combination device of seedling tray bracket and double seedling delivery wheel for a rapeseed transplanter according to claim 4, characterized in that: The bottom plate (302) of the burette (301) is attached to the side edges of the two side wing plates (108) and the middle wing plate (109).

7. The combination device of seedling tray bracket and double seedling delivery wheel for a rapeseed transplanter according to claim 2, characterized in that: The partition mounting shaft (105) comprises multiple shafts arranged in parallel to each other.

8. The combination device of seedling tray bracket and double seedling delivery wheel for a rapeseed transplanter according to claim 4, characterized in that: The wing plate mounting shaft (107) comprises multiple shafts arranged in parallel to each other.

9. The combination device of seedling tray bracket and double seedling delivery wheel for a rapeseed transplanter according to claim 4, characterized in that: The inner edges of the two side wing plates (108) and the middle wing plate (109) form a V-shaped guide angle α for guiding the cavity plate (301) into place, wherein α is 60° to 120°.

10. The combination device of seedling tray bracket and double seedling delivery wheel for a rapeseed transplanter according to claim 1, characterized in that: The bottom of the bracket base plate (102) is provided with connecting ears (106) on both sides.

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