Row spacing adjustment mechanism for transplanting machine

Abstract

The present application discloses a row spacing adjustment mechanism for a transplanter, comprising a frame, a seedling throwing shaft, a lead screw and a plurality of seedling throwing devices, wherein the frame is fixedly connected with a first guide rail and a second guide rail parallel to each other, the seedling throwing shaft and the lead screw are respectively rotatably connected with the frame, the seedling throwing device is provided with a shaft sleeve and a first slider, the shaft sleeve is sleeved on the seedling throwing shaft and is slidably connected with the seedling throwing shaft, the first slider slides on the first guide rail, the lead screw is sequentially provided with a plurality of threaded parts at intervals, the thread directions of any two adjacent threaded parts are opposite, the diameter of the threaded part located in the middle of the lead screw is greater than the diameter of the threaded part located at the edge of the lead screw, one threaded part is screwed with an adjustment block, one adjustment block is fixedly connected with a second slider, the second slider slides on the second guide rail, and one second slider is connected to one first slider through a connecting plate. The different row spacing requirements of different crops are met, and the versatility is improved.

Description

Technical Field

[0001] The utility model generally relates to the field of agricultural machinery, and in particular to a row spacing adjustment mechanism for a transplanter. Background Art

[0002] A transplanter is an agricultural machine used to transplant seedlings of crops. It is put into use because it can replace the traditional manual transplanting of crop seedlings. The transplanter is equipped with a seedling thrower, and the seedlings are placed in the seedling thrower and the seedlings are thrown. Multiple seedling throwers can be set on the transplanter to throw seedlings at the same time, thereby improving the efficiency of transplanting crop seedlings.

[0003] In the prior art, the spacing between multiple seedling throwers is generally fixed, which cannot meet the different row spacing requirements of different crops and has poor versatility. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a row spacing adjustment mechanism for a transplanter with good versatility.

[0005] In the first aspect, the row spacing adjustment mechanism for the transplanter of the utility model comprises a frame, a seedling throwing shaft, a screw and a plurality of seedling throwing devices, the frame is fixedly connected with a first guide rail and a second guide rail parallel to each other, the seedling throwing shaft and the screw are rotatably connected with the frame respectively, the seedling throwing device is provided with a shaft sleeve and a first slider, the shaft sleeve is sleeved on the seedling throwing shaft and is slidably connected to the seedling throwing shaft, the first slider slides on the first guide rail, the screw is sequentially provided with a plurality of threaded portions, the thread directions of any two adjacent threaded portions are opposite, the diameter of the threaded portion located in the middle of the screw is larger than the diameter of the threaded portion located at the edge of the screw, one of the threaded portions is screwed with an adjustment block, one of the adjustment blocks is fixedly connected with a second slider, the second slider slides on the second guide rail, and one of the second sliders is connected to one of the first sliders through a connecting plate.

[0006] According to the technical solution provided in the embodiment of the present application, by rotating the lead screw, the adjustment block is driven to move, which in turn drives the second slider to slide, which in turn drives the first slider to slide, which in turn drives the seedling thrower to move, thereby changing the distance between the seedling throwers, thereby meeting the different row spacing requirements of different crops and improving versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0008] Figure 1 It is a structural schematic diagram of a row spacing adjustment mechanism for a transplanter according to an embodiment of the utility model;

[0009] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0010] Figure 3 for Figure 1 A partial enlarged view of point B in the middle;

[0011] Figure 4 It is a schematic structural diagram of a lead screw of a row spacing adjustment mechanism for a transplanter according to an embodiment of the utility model. DETAILED DESCRIPTION

[0012] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.

[0013] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0014] Please refer to Figures 1 to 4 The row spacing adjustment mechanism for a transplanter of the utility model comprises a frame, a seedling throwing shaft 200, a lead screw 300 and a plurality of seedling throwing devices 400. The frame is fixedly connected with a first guide rail 110 and a second guide rail 120 which are parallel to each other. The seedling throwing shaft 200 and the lead screw 300 are rotatably connected with the frame respectively. The seedling throwing device 400 is provided with a shaft sleeve 410 and a first slider 420. The shaft sleeve 410 is sleeved on the seedling throwing shaft 200 and is slidably connected with the seedling throwing shaft 200. The first slider 420 slides on the first guide rail 110. The lead screw 300 is rotated according to the rotation of the shaft sleeve 410. A plurality of threaded portions 310 are arranged at intervals, and the thread directions of any two adjacent threaded portions 310 are opposite. The diameter of the threaded portion 310 located in the middle of the lead screw 300 is larger than the diameter of the threaded portion 310 located at the edge of the lead screw 300. A threaded portion 310 is screwed with an adjusting block 320, and an adjusting block 320 is fixedly connected with a second slider 330. The second slider 330 slides on the second guide rail 120, and a second slider 330 is connected to a first slider 420 via a connecting plate 340.

[0015] In an embodiment of the utility model, the seedling throwing device 400 is provided with a shaft sleeve 410 and a first slider 420. The shaft sleeve 410 is sleeved on the seedling throwing shaft 200 and is slidably connected to the seedling throwing shaft 200. The first slider 420 slides on the first guide rail 110. The second slider 330 is connected to the first slider 420 through a connecting plate 340. The second slider 330 slides on the second guide rail 120. That is, the first slider 420 and the second slider 330 are connected by the connecting plate 340 and will move synchronously. The lead screw 300 is provided with a plurality of threaded portions 310 at intervals in sequence, one threaded portion 310 is screwed with an adjusting block 320, and the thread directions of two adjacent threaded portions 310 are opposite. When the lead screw 300 is rotated, the two adjacent adjusting blocks 320 are driven to approach or move away from each other, thereby driving the two adjacent second sliders 330 to approach or move away from each other, thereby driving the two adjacent first sliders 420 to approach or move away from each other, thereby driving the two adjacent seedling throwers 400 to approach or move away from each other, thereby changing the distance between the seedling throwers 400, thereby meeting the different row spacing requirements of different crops and improving versatility.

[0016] Four seedling throwing devices 400, four first sliders 420, four threaded portions 310, four adjustment blocks 320, four second sliders 330 and four connecting plates 340 may be provided. The four first sliders 420 slide on the first guide rail 110 respectively, and the first sliders 420 slide on the first guide rail 110 to ensure the stability of the movement of the seedling throwing device 400. The four second sliders 330 slide on the second guide rail 120 respectively, and the second sliders 330 slide on the second guide rail 120 to ensure the stability of the movement of the adjustment block 320.

[0017] The diameter of the threaded portion 310 located in the middle of the lead screw 300 is greater than the diameter of the threaded portion 310 located at the edge of the lead screw 300 , which facilitates screwing the adjustment block 320 onto the threaded portion 310 located in the middle of the lead screw 300 .

[0018] Furthermore, the cross section of the seedling-planting shaft 200 is hexagonal, and the shaft sleeve 410 is provided with a hexagonal hole for the seedling-planting shaft 200 to pass through.

[0019] In an embodiment of the utility model, the cross-section of the seedling-planting shaft 200 is hexagonal, and the shaft sleeve 410 is provided with a hexagonal hole for the seedling-planting shaft 200 to pass through. When the seedling-planting shaft 200 rotates, the shaft sleeve 410 can be driven to rotate.

[0020] Furthermore, one end of the lead screw 300 is fixedly connected to a rotating wheel 350 .

[0021] In the embodiment of the utility model, when the lead screw 300 needs to be rotated to adjust the line spacing, the user can grasp the rotating wheel 350 to drive the lead screw 300 to rotate, thereby reducing the difficulty of operation.

[0022] Furthermore, the seedling planting shaft 200 is located above the first guide rail 110 , and the frame is fixedly connected to two first fixed seats 111 . The seedling planting shaft 200 is rotatably connected to the two first fixed seats 111 through first bearings respectively, and the first guide rail 110 is located between the two first fixed seats 111 .

[0023] In the embodiment of the utility model, the seedling-planting shaft 200 is rotatably connected to the two first fixing seats 111 respectively through the first bearing, thereby ensuring the stability of the rotational connection between the seedling-planting shaft 200 and the frame. The first guide rail 110 is located between the two first fixing seats 111, and the first slider 420 moves between the two first fixing seats 111. The first fixing seat 111 can stop the first slider 420 to prevent the first slider 420 from detaching from the first guide rail 110.

[0024] Furthermore, the seedling planting shaft 200 is sleeved with a sprocket 210.

[0025] In an embodiment of the present invention, the sprocket wheel 210 is connected to a chain, and the sprocket wheel 210 is used to drive the seedling-planting shaft 200 to rotate.

[0026] Furthermore, the lead screw 300 is located below the second guide rail 120 , the frame is fixedly connected to two second fixing seats 121 , the lead screw 300 is rotatably connected to the two second fixing seats 121 via second bearings respectively, and the second guide rail 120 is located between the two second fixing seats 121 .

[0027] In the embodiment of the utility model, the lead screw 300 is rotatably connected to the two second fixing seats 121 respectively through the second bearing, thereby ensuring the stability of the rotational connection between the lead screw 300 and the frame. The second guide rail 120 is located between the two second fixing seats 121, and the second slider 330 moves between the two second fixing seats 121. The second fixing seat 121 can stop the second slider 330 to prevent the second slider 330 from being separated from the second guide rail 120.

[0028] Further, the number of the seedling throwing devices 400 is set to four.

[0029] Furthermore, a stop ring 360 is provided between the two threaded portions 310 in the middle of the lead screw 300 , and the diameter of the stop ring 360 is greater than the diameter of the threaded portion 310 .

[0030] In the embodiment of the utility model, the stop ring 360 can stop the adjustment block 320 to prevent the adjustment blocks 320 screwed on the two threaded parts 310 located in the middle of the screw 300 from colliding with each other, thereby improving the reliability of the row spacing adjustment mechanism for the transplanter.

[0031] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.

Claims

1. A row spacing adjustment mechanism for a transplanter, characterized in that: The cam is connected with a first slide block and a second slide block, the second slide block is connected with the first slide block and the second slide block is connected with the second slide block.

2. The row spacing adjustment mechanism for a transplanter according to claim 1, characterized in that: The cross section of the seedling-planting shaft is hexagonal, and the shaft sleeve is provided with a hexagonal hole for the seedling-planting shaft to pass through.

3. The row spacing adjustment mechanism for a transplanter according to claim 1, characterized in that: One end of the lead screw is fixedly connected with a rotating wheel.

4. The row spacing adjustment mechanism for a transplanter according to claim 1, characterized in that: The seedling planting axis is located above the first guide rail, the frame is fixedly connected to two first fixing seats, the seedling planting axis is rotatably connected to the two first fixing seats through first bearings respectively, and the first guide rail is located between the two first fixing seats.

5. The row spacing adjustment mechanism for a transplanter according to claim 1, characterized in that: The seedling casting shaft is sleeved with a sprocket.

6. The row spacing adjustment mechanism for a transplanter according to claim 1, characterized in that: The lead screw is located below the second guide rail, the frame is fixedly connected to two second fixing seats, the lead screw is rotatably connected to the two second fixing seats via second bearings respectively, and the second guide rail is located between the two second fixing seats.

7. The row spacing adjustment mechanism for a transplanter according to claim 1, characterized in that: The number of the seedling throwing devices is set to four.

8. The row spacing adjustment mechanism for a transplanter according to claim 1, characterized in that: A stop ring is arranged between the two threaded parts located in the middle of the lead screw, and the diameter of the stop ring is greater than the diameter of the threaded part.

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