Plate lifting assembly and disc winding and unwinding mechanism

Abstract

The utility model discloses a plate lifting assembly and a disc winding and unwinding mechanism, and belongs to the technical field of agricultural machinery. The plate lifting assembly comprises a tray lifting part and a buffer part, and the tray lifting part is used for shoveling or putting down the seedling tray; the buffering component is installed on the tray lifting component and makes contact with soil on the ground during tray lifting, so that buffering is generated between the tray lifting component and the soil on the ground. The tray collecting and releasing mechanism comprises a conveying assembly and the plate lifting assembly, and the plate lifting assembly is arranged at the end, close to the ground, of the conveying assembly. The conveying assembly comprises a conveying frame, a driving wheel and a driven wheel are arranged at the two ends of the conveying frame in the conveying direction respectively, the driving wheel and the driven wheel are connected through a conveying belt, and the driving wheel is driven by a driving mechanism; and the driven wheel drives the power-assisted roller to rotate. The seedling tray collecting and placing device can solve the problem that in the prior art, when a seedling tray collecting and placing device lifts a tray, a tray lifting structure is prone to sinking into soil on the ground during tray lifting, and tray lifting work is affected.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, and specifically, to a lifting plate assembly and a reel winding and unwinding mechanism. Background Art

[0002] At present, the sowing and seedling raising processes and the transplanting process of rice have basically achieved mechanized operations. However, the process of lifting the seedling trays for transplanting is the one that requires the most manual labor and has the greatest labor intensity. Almost all of it depends on manual lifting and coiling of the trays, with a low degree of mechanization. The seedling tray is an important component for realizing mechanized tray lifting, and its main function is to realize the seedling raising process of rice seedlings.

[0003] In order to realize the mechanization of the tray lifting work, some research has also been done in the prior art. For example, the Chinese patent document with the publication number CN210900326U discloses a rice seedling tray lifting machine. While the traveling mechanism drives the machine to move forward, the seedling tray lifting mechanism separates the seedling tray from the seedbed. The seedling tray tooth roller conveying mechanism conveys the separated seedling tray to the conveyor belt of the seedling tray conveyor belt conveying mechanism, and the seedling tray conveyor belt conveying mechanism conveys the conveyed seedling tray to the tray collecting assembly for others to collect uniformly. This rice seedling tray lifting machine realizes the automatic separation of the seedling tray from the seedbed mechanically. However, the tray lifting structure in this patented technology is mainly a separation plate, and the separation plate exerts a relatively large squeezing force on the seedling tray, especially on the last few rows of seedling trays during the tray winding operation when the lifting machine is moving forward, which may cause the seedling tray to deform.

[0004] Another example is the Chinese patent document with the publication number CN116472825A, which discloses a field seedling tray collecting, placing and winding device and method. When collecting, placing and winding the trays, the ground shovel contacts the ground and then shovels up the seedling tray. The shoveled seedling tray moves together with the conveying plate and travels along a specified route to complete the recycling task. The ground shovel, as the tray lifting structure, needs to be inserted into the bottom of the seedling tray to lift the seedling tray onto the conveying plate. However, when the ground shovel is inserted into the bottom of the seedling tray, it is very easy to sink into the ground soil, which affects the tray lifting work. Content of the Utility Model

[0005] The purpose of the present utility model is to provide a lifting plate assembly and a reel winding and unwinding mechanism, so as to solve the problem that in the prior art, when the seedling tray collecting, placing and winding device lifts the tray, the tray lifting structure is prone to sink into the ground soil during the tray lifting process, which affects the tray lifting work.

[0006] To achieve the above purpose, the present utility model provides a lifting plate assembly, which includes a tray lifting component and a buffer component. The tray lifting component is used for shoveling up or putting down the seedling tray; the buffer component is installed on the tray lifting component, and the buffer component contacts the ground soil during the tray lifting process, so as to generate a buffer between the tray lifting component and the ground soil.

[0007] Further, it further includes a lifting plate substrate; the tray lifting component includes two fork feet, and the two fork feet are arranged on both sides of the lifting plate substrate and extend towards the ground; the buffering component is a floating roller, and the floating roller is rotatably connected between the two fork feet.

[0008] Further, the fork feet are of a wedge-shaped structure, and the height of the fork feet from the tray lifting end to the floating roller gradually increases in the direction away from the ground.

[0009] Further, the tray lifting component includes a tray lifting panel, and the buffering component includes a floor fork, and the floor fork is installed at the bottom of the tray lifting panel.

[0010] Further, there are two floor forks, and the two floor forks are distributed on both sides of the advancing direction of the tray lifting panel; the floor fork includes a front section, a middle section and a rear section, the front section is connected to the middle section, the middle section is connected to the rear section, and the front section is parallel to the ground when contacting the ground at the end of the tray lifting panel.

[0011] Further, there are assisting rollers arranged on both sides of the tray lifting panel, and the assisting rollers rotate to assist in lifting the tray lifting panel; the tray lifting end of the tray lifting panel is of a closed-mouth structure.

[0012] Further, at least two assisting rollers are arranged on the same side of the tray lifting panel, and the two assisting rollers are connected by an assisting belt, and the assisting belt is used to contact the bottom of the seedling tray.

[0013] Further, a resistance structure is arranged on the surface of the assisting belt.

[0014] The present utility model further provides a tray loading and unloading mechanism, which includes a conveying component and the above-mentioned lifting plate component, and the lifting plate component is arranged at one end of the conveying component close to the ground.

[0015] Further, the conveying component includes a conveying frame, a driving wheel and a driven wheel are respectively arranged at both ends of the conveying frame in the conveying direction, the driving wheel and the driven wheel are connected by a conveyor belt, and the driving wheel is driven by a driving mechanism; the driven wheel drives the assisting roller to rotate.

[0016] Adopting the technical solution provided by the present utility model, compared with the existing well-known technology, it has the following beneficial effects:

[0017] (1) For a tray loading and unloading mechanism of the present utility model, when the lifting plate component is loading or unloading the tray, the tray lifting component contacts the ground, the tray lifting end of the tray lifting component inserts into the bottom of the seedling tray, and then the assisting component can assist the seedling tray to move from the tray lifting component to the conveying component. Due to the assisting effect of the assisting component, the seedling tray is more likely to move to the conveying component, which can buffer the extrusion on the seedling tray and the extrusion between the seedling trays, and reduce the risk of the seedling tray being deformed under pressure.

[0018] (2) A tray retracting and extending mechanism of the present utility model, the assisting member is divided into a powered member or a non-powered member, and both can buffer the extrusion force on the seedling tray. The non-powered roller is rotatably connected between two fork feet. When the non-powered roller contacts the seedling tray, it can reduce the resistance of the seedling tray movement by rotating. The fork feet adopt a wedge-shaped structure, which is convenient for picking up the seedling tray during tray retraction and facilitating the sliding of the seedling tray during tray extension.

[0019] (3) A tray retracting and extending mechanism of the present utility model, the powered rollers can provide power for the movement of the seedling tray through their own rotation, can weaken the conveying power obtained by the seedling tray due to extrusion, reduce the pressure on the seedling tray and prevent deformation. The rollers are connected by a belt. The belt can increase the contact area with the seedling tray relative to the rollers, and increase the conveying stability of the seedling tray. The anti-slip structure on the surface of the belt can increase the friction between the belt and the seedling tray, prevent the seedling tray from slipping during tray retraction or extension, and affect the efficiency of tray retraction and extension.

[0020] (4) A tray retracting and extending mechanism of the present utility model, the powered rollers and the conveying mechanism share the same set of power systems for driving. On the one hand, it can optimize the structural design and reduce the consumption of power energy. On the other hand, it can make the powered rollers and the conveying mechanism tend to move synchronously, which helps to increase the smoothness of seedling tray transportation. The landing fork is arranged at the bottom of the tray lifting panel. When the landing fork contacts the ground, it is parallel to the ground, and can prevent the tray lifting component from sinking deeply into the soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In the drawings, the dimensions and ratios do not represent the dimensions and ratios of the actual product. The drawings are merely illustrative and, for clarity, certain non-essential elements or features are omitted.

[0022] Figure 1 is a schematic structural diagram of the tray retracting and extending mechanism of Embodiment 1 of the present utility model;

[0023] Figure 2 is in Embodiment 1 of the present utility model Figure 1 top view structural diagram;

[0024] Figure 3 is a schematic structural diagram of the tray retracting and extending mechanism of Embodiment 2 of the present utility model;

[0025] Figure 4 is in Embodiment 2 of the present utility model Figure 3 top view structural diagram;

[0026] Figure 5 is a schematic structural diagram of the lifting plate assembly in Embodiment 2 of the present utility model;

[0027] Figure 6 is another perspective structural diagram of the lifting plate assembly in Embodiment 2 of the present utility model;

[0028] Figure 7 It is a schematic structural diagram of the reel mechanism after the structure is simplified in Embodiment 2 of the present utility model.

[0029] Explanation of the reference numerals in the schematic diagram:

[0030] 1. Conveyor assembly; 101. Conveyor frame; 102. Driving wheel; 103. Driven wheel; 104. Conveyor belt; 105. Conveyor chain; 2. Lifting plate assembly; 201. Floating roller; 202. Fork feet; 203. Lifting plate base plate; 204. Reel lifting panel; 205. Landing fork; 2051. Front section; 2052. Middle section; 2053. Rear section; 206. Boosting roller; 207. Boosting belt. Specific embodiments

[0031] To further understand the content of the present utility model, the present utility model will be described in detail in conjunction with the accompanying drawings and embodiments. What is described here is only the preferred embodiment of the present utility model. Those skilled in the art can think of other ways to implement the present utility model on the basis of the preferred embodiment, and these other ways also fall within the scope of the present utility model.

[0032] Embodiment 1

[0033] As Figure 1 - Figure 2 shown, this embodiment provides a reel mechanism, including a conveyor assembly 1 and a lifting plate assembly 2. The lifting plate assembly 2 is arranged at one end of the conveyor assembly 1 close to the ground. The lifting plate assembly 2 includes a reel lifting component and a buffering component. The reel lifting component is used to lift or lower the seedling tray. The buffering component is installed on the reel lifting component. The buffering component contacts the ground soil during reel lifting, so that the reel lifting component and the ground soil generate buffering. The buffering effect of the buffering component can prevent the reel lifting component from sinking deeply into the ground soil, reduce the resistance when the reel lifting component moves forward, and is beneficial to improving the reel lifting efficiency.

[0034] Specifically, as Figure 1 and Figure 2As shown, the lifting plate assembly 2 further includes a lifting plate base plate 203. The disk lifting component includes two fork feet 202, and the two fork feet 202 are arranged on both sides of the lifting plate base plate 203 and extend towards the ground. When placing or lifting the disk, the fork feet 202 can contact the ground prior to the conveying component 1. The buffering component is a floating roller 201, and the floating roller 201 is rotatably connected between the two fork feet 202. The axial direction of the floating roller 201 is perpendicular to the traveling direction of the fork feet 202. The floating roller 201 rotates around its axial direction as the fork feet 202 travel, and the roller surface of the floating roller 201 directly contacts the soil on the ground. Therefore, it can play a buffering role between the fork feet 202 and the soil on the ground. The rolling of the floating roller 201 can also reduce the resistance when the fork feet 202 travel, which is beneficial to improving the disk lifting efficiency of the fork feet 202. It should be noted that when lifting the disk, the roller surface of the floating roller 201 does not contact the bottom surface of the seedling tray to avoid the resistance generated by the rotation of the roller surface to the rising of the seedling tray.

[0035] Furthermore, the fork feet 202 are of a wedge-shaped structure. The height of the fork feet 202 from the disk lifting end to the floating roller 201 gradually increases in the direction away from the ground, forming a structure with a lower disk lifting end. This wedge-shaped structure facilitates the fork feet 202 to lift the seedling tray during disk lifting, and the seedling tray moves from a lower position to a higher position to complete the disk lifting action; when placing the disk, due to the wedge-shaped structure of the fork feet 202, the position of the disk lifting end is lower, forming a certain height difference, which facilitates the seedling tray to slide off the fork feet 202 under the action of gravity.

[0036] Refer to Figure 1 - Figure 2 , the conveying component 1 includes a conveying frame 101. A driving wheel 102 and a driven wheel 103 are respectively arranged at both ends of the conveying frame 101 in the conveying direction. The driving wheel 102 and the driven wheel 103 are connected by a conveying chain 105, and the driving wheel 102 is driven by a driving mechanism. The driving mechanism is mainly a motor, and the motor drives the driving wheel 102 to rotate. The driven wheel 103 rotates synchronously under the driving action of the conveying chain 105. In this embodiment, both the driving wheel 102 and the driven wheel 103 are sprockets. In order to prevent the seedling tray from slipping off the conveying chain 105, an anti-slip structure is provided on the conveying chain 105. The anti-slip structure can be a convex protrusion, a barbed structure or other structures that can generate resistance to the bottom of the seedling tray. A travel switch is also provided on the conveying frame 101. The travel switch is used to detect the position of the seedling tray when placing the disk, so as to align the positions of the seedling trays carried on different conveying chains 105, maintain the neatness when placing the disk, and improve the regularity of laying the trays.

[0037] Embodiment 2

[0038] Based on the first embodiment, the structure of the lifting plate assembly 2 in this embodiment is slightly different, as Figure 3 - Figure 7As shown, the starting tray component includes a starting tray panel 204, and the buffering component includes a landing fork 205. The landing fork 205 is installed at the bottom of the starting tray panel 204. There are two landing forks 205, and the two landing forks 205 are distributed on both sides of the traveling direction of the starting tray panel 204. The bottom area of the landing fork 205 is smaller than that of the starting tray panel 204. When the landing fork 205 contacts the ground soil, the contact area between the landing fork 205 and the ground soil is smaller. The landing fork 205 acts like a sled, which can reduce the resistance when the landing fork 205 slides, and helps the end of the starting tray panel 204 slide on the ground. The landing fork 205 includes a front section 2051, a middle section 2052, and a rear section 2053. The front section 2051 is connected to the middle section 2052, and the middle section 2052 is connected to the rear section 2053. The front section 2051 is parallel to the ground when the end of the starting tray panel 204 contacts the ground. The landing fork 205 contacts the ground soil prior to the starting tray panel 204, playing a buffering role for the starting tray panel 204 to prevent the starting tray panel 204 from sinking into the soil.

[0039] To facilitate the smooth upward movement of the seedling tray from the starting tray panel 204, a boosting device is provided on the side of the starting tray panel 204. The selection of the boosting device can be diverse as long as it can assist in starting the tray. Specifically, in this embodiment, as Figure 3 and Figure 4 shown, boosting rollers 206 are provided on both sides of the starting tray panel 204, and the boosting rollers 206 rotate to assist in starting the starting tray panel 204. Two boosting rollers 206 are provided on the same side of the starting tray panel 204, and the two boosting rollers 206 are connected by a boosting belt 207. The boosting belt 207 is used to contact the bottom of the seedling tray, and the driven wheel 103 drives the boosting rollers 206 to rotate. The driving wheel 102 and the driven wheel 103 are connected by a conveyor belt 104. The driving wheel 102 is driven by a driving mechanism. The rotation of the boosting rollers 206 causes the boosting belt 207 to rotate around the boosting rollers 206, and the movement of the boosting belt 207 makes the seedling tray move upward, assisting in the starting work of the starting tray panel 204. The starting end of the starting tray panel 204 has a closed-mouth structure, that is, the size of the starting end is smaller, which can reduce the contact area between the starting tray panel 204 and the seedling tray during starting, making it easier to insert into the bottom of the seedling tray and improving the starting efficiency. Further, a resistance structure is provided on the surface of the boosting belt 207, which can improve the stability of the contact between the boosting belt 207 and the seedling tray, prevent the seedling tray and the boosting belt 207 from slipping, and improve the starting efficiency. On the other hand, to further streamline the mechanism, as Figure 7 shown, the boosting rollers 206 are connected to the conveyor belt 104, omitting the boosting belt 207 structure, and the number of boosting rollers 206 is also smaller. One boosting roller 206 is provided on each side of the starting tray panel 204, greatly streamlining the structure and improving the transmission efficiency. At this time, the boosting roller 206 also acts as the driven wheel 103, further streamlining the structure.

[0040] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0041] The above has schematically described the present utility model and its implementation manners. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments without creative efforts without departing from the purpose of the creation of the present utility model, they shall fall within the protection scope of the present utility model.

Claims

1. A lifting plate assembly, characterized in that: The utility model comprises a lifting component and a buffer component. The lifting component is used for shoveling up or putting down the seedling tray. The buffer component is installed on the lifting component and contacts with the ground soil when the tray is lifted, so that the lifting component and the ground soil generate a buffer.

2. A lifting plate assembly according to claim 1, characterized in that: It also includes a lifting plate substrate (203); the lifting component includes two fork legs (202), the two fork legs (202) are arranged on both sides of the lifting plate substrate (203) and extend toward the ground; the buffer component is a floating roller (201), and the floating roller (201) is rotatably connected between the two fork legs (202).

3. A lifting plate assembly according to claim 2, characterized in that: The fork foot (202) is a wedge-shaped structure, and the height of the fork foot (202) from the ground gradually increases in the direction from the starting end to the floating roller (201).

4. A lifting plate assembly according to claim 1, characterized in that: The lifting component comprises a lifting panel (204), and the buffer component comprises a landing fork (205). The landing fork (205) is installed at the bottom of the lifting panel (204).

5. A lifting plate assembly according to claim 4, characterized in that: Two of the grounding forks (205) are provided, and the two grounding forks (205) are distributed on both sides of the travel direction of the starting panel (204); the grounding fork (205) comprises a front section (2051), a middle section (2052) and a rear section (2053), the front section (2051) is connected to the middle section (2052), the middle section (2052) is connected to the rear section (2053), and the front section (2051) remains parallel to the ground when the end of the starting panel (204) contacts the ground.

6. A lifting plate assembly according to claim 4, characterized in that: Power-assist rollers (206) are arranged on both sides of the disk-lifting panel (204), and the power-assist rollers (206) rotate the disk-lifting panel (204) to lift the disk; the disk-lifting end of the disk-lifting panel (204) is a closed structure.

7. A lifting plate assembly according to claim 6, characterized in that: At least two power-assisting rollers (206) are arranged on the same side of the tray lifting panel (204), and the two power-assisting rollers (206) are connected by a power-assisting belt (207), and the power-assisting belt (207) is used to contact the bottom of the seedling tray.

8. A lifting plate assembly according to claim 7, characterized in that: The surface of the power-assisting belt (207) is provided with a resistance structure.

9. A tray-retracting mechanism, characterized in that: It comprises a conveying assembly (1) and a lifting plate assembly (2) according to any one of claims 1 to 8, wherein the lifting plate assembly (2) is arranged at one end of the conveying assembly (1) close to the ground.

10. A tray-retracting mechanism according to claim 9, characterized in that: The conveying assembly (1) comprises a conveying frame (101), wherein the conveying frame (101) is provided with a driving wheel (102) and a driven wheel (103) at both ends in the conveying direction, respectively; the driving wheel (102) and the driven wheel (103) are connected via a conveying belt (104); the driving wheel (102) is driven by a driving mechanism; and the driven wheel (103) drives the assist roller (206) to rotate.

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