Self-adjusting fruit support mechanism adapting to fruit diameter

Abstract

The utility model discloses a self-adjusting fruit support mechanism adapting to fruit diameter, which belongs to the technical field of agricultural instruments, solves the problem that the height of the conventional tray cannot be automatically adjusted according to the size of the fruit, and adopts the technical scheme that the self-adjusting fruit support mechanism mainly comprises a tray, a base and a guide shaft, the tray is fixedly connected with the guide shaft, the guide shaft penetrates through the guide hole in a sliding mode so that the tray can be arranged above the support in a lifting mode, a spring located between the tray and the base is arranged on the outer circle of the guide shaft, and the spring lifts the tray upwards. The height of the tray changes along with the weight of the fruits on the tray. The fruit tray is mainly used for achieving self-adaptive adjustment of the height of the tray according to the size of fruits.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a fruit support mechanism that is adaptable to the self-regulation of fruit diameters. Background Art

[0002] In the prior art, for example, the invention patent CN107892008A discloses an apple netting device, which includes a frame, an annular belt conveyor is provided on the frame, apple trays are evenly distributed on the conveyor belt of the annular belt conveyor, one end of the annular belt conveyor is an apple inlet and an apple outlet, and a netting device is provided on the frame inside the other end of the annular belt conveyor. However, the height of the apple tray is fixed, and the height of the tray cannot be automatically adjusted according to the size of the fruit, resulting in different distances from the fruit of different sizes to the netting device, which easily leads to the problem of inaccurate netting. Utility Model Content

[0003] The utility model aims to provide a self-adjusting fruit tray mechanism that adapts to the fruit diameter, solves the problem that the existing tray cannot automatically adjust the height of the tray according to the fruit size, and realizes the self-adaptive adjustment of the height of the tray according to the fruit size.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a fruit support mechanism that can self-adjust to the diameter of the fruit, comprising a tray, a bracket and a guide shaft, the bracket being provided with a vertically opened guide hole, the tray being liftably arranged above the bracket through the guide shaft passing through the guide hole, the outer circle of the guide shaft being provided with a spring located between the tray and the bracket, the spring lifting the tray upward, and when in use, the spring being compressed by the gravity of the fruit on the tray so that the height of the tray changes with the weight of the fruit on the tray.

[0005] After adopting the above technical scheme, the utility model has the following advantages: for the same type of fruit, the diameter of the fruit is usually proportional to the weight, so the weight can be used to replace the size. Through the action of the spring, the height of the tray can be automatically adjusted according to the weight change of the fruit, ensuring that when fruits of different sizes are at the next net-setting station, the distance from the top of the fruit to the bottom of the bracket tends to be constant, which is conducive to achieving accurate netting, and the adjustment structure is relatively simple. Secondly, when the fruit is placed on the tray, the spring will be compressed and play a buffering role, which is conducive to reducing and preventing the fruit from bumping. Finally, the guide shaft can also limit the moving direction of the tray, effectively avoiding the tilt of the spring, and further making the diameter of the fruit tend to be proportional to the compression of the spring.

[0006] Furthermore, a limit piece is provided at the bottom end of the guide shaft, and the limit piece is located on the side of the bracket away from the spring. When the tray is at an initial height, the limit piece abuts against the bracket to put the spring in a pre-tightened state.

[0007] By adopting the above-mentioned technical solution, the setting of the limiter can ensure that the spring is in a pre-tightened state in the initial state, so that the spring has sufficient tension and supporting force to ensure that the increase in the fruit diameter tends to be proportional to the compression of the spring, which is conducive to making the positions of fruits of different sizes in the next set of net stations further tend to be constant.

[0008] Furthermore, a linear bearing fixedly connected to the bracket is provided in the guide hole, the linear bearing is provided with a bearing hole, and the guide shaft can be lifted and lowered through the bearing hole.

[0009] By adopting the above-mentioned technical solution, the linear bearing can provide smooth sliding movement, so that the guide shaft can be easily raised and lowered in the bearing hole, ensuring that the height adjustment process of the tray is smooth and unobstructed. Secondly, the linear bearing can withstand a large load, ensuring the stability and reliability of the tray when bearing the weight of the fruit, and the guide shaft can also rotate relative to the linear bearing to realize the rotation of the tray.

[0010] Furthermore, a first threaded hole is provided at the bottom end of the guide shaft, and the limiting member is a first bolt, and the first bolt is screwed out of the first threaded hole to disassemble and separate the guide shaft and the bracket.

[0011] By adopting the above-mentioned technical solution, the guide shaft and the bracket can be easily disassembled and separated by unscrewing the first bolt, which is convenient for maintaining and repairing various components of the mechanism and reducing maintenance time and cost.

[0012] Furthermore, the top end of the guide shaft is detachably connected to the tray via a connecting assembly.

[0013] By adopting the above technical solution, the guide shaft and the tray can be easily separated through the design of detachable connection, which is convenient for maintenance and repair of various components of the mechanism and reduces maintenance time and cost.

[0014] Furthermore, the connecting assembly includes a second bolt, a second threaded hole is provided at the top end of the guide shaft, and a through hole is provided on the tray for the second bolt to pass through and be threadedly connected to the second threaded hole.

[0015] By adopting the above technical solution, the guide shaft and the tray can be easily disassembled and installed through the second bolt connection, which is convenient for maintenance and replacement of parts.

[0016] Furthermore, a vertically arranged guide column is provided on the tray, and the top end of the spring is sleeved on the guide column.

[0017] By adopting the above-mentioned technical solution, the top end of the spring is sleeved on the guide column, which can ensure that the spring maintains a stable position during movement and is not prone to shaking or deflection, thereby improving the stability of the fruit support mechanism.

[0018] Furthermore, a linear bearing is provided in the guide hole, and the linear bearing is provided with a bearing hole, a bearing body and a bearing seat. The guide shaft can be raised and lowered through the bearing hole, and the linear bearing is fixedly connected to the bracket through the bearing seat. The bearing body is arranged vertically, and a accommodating cavity for accommodating the bearing body is provided in the guide column. When the tray is at the lowest height, the bearing body and the cavity of the accommodating cavity are offset against each other.

[0019] By adopting the above-mentioned technical solution, the bearing body is arranged vertically. When the tray is at the lowest height, the bearing body is offset against the cavity of the accommodating cavity, limiting the maximum movement of the tray, so that the position of the fruit is within the required height range of the next workstation. It can also limit the maximum compression of the spring, which is beneficial to reduce damage to the spring, save space, and make the structure of the fruit support mechanism more compact.

[0020] Furthermore, the bracket is provided with a vertically arranged guide ring, a guide cavity is arranged in the guide ring, and the bottom end of the spring is arranged in the guide cavity.

[0021] By adopting the above technical solution, the guide ring can effectively fix the bottom end of the spring to prevent the spring from shaking or falling off during movement, thereby further improving the stability and reliability of the fruit support mechanism.

[0022] Furthermore, the guide shaft and the spring are coaxially arranged.

[0023] By adopting the above technical solution, the guide shaft and the spring are coaxially arranged, which is conducive to making the movement direction of the guide shaft and the compression direction of the spring tend to be consistent, so that the height of the tray is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The utility model is further described below in conjunction with the accompanying drawings:

[0025] Figure 1 This is a structural schematic diagram of a fruit support mechanism that is self-adjusting to the fruit diameter according to the utility model;

[0026] Figure 2 It is a cross-sectional view of the fruit support mechanism adapted to the self-adjustment of the fruit diameter in the utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the fruit support mechanism of the utility model that is adapted to the fruit diameter and self-adjustable and is used to support small fruits;

[0028] Figure 4 This is a schematic diagram of the structure of the fruit support mechanism of the utility model that is adapted to the fruit diameter and self-adjustable and is used to support the fruit in the middle;

[0029] Figure 5 This is a schematic diagram of the structure of the fruit support mechanism of the utility model that is adapted to the fruit diameter and self-adjustable and is used to support large fruits;

[0030] In the figure, 1. tray; 11. guide column; 12. accommodating cavity; 13. through hole; 2. bracket; 21. guide hole; 22. guide ring; 23. guide cavity; 3. guide shaft; 31. first threaded hole; 32. second threaded hole; 4. spring; 51. first bolt; 52. second bolt; 6. linear bearing; 61. bearing body; 62. bearing seat; 63. bearing hole; 7. small fruit; 8. medium fruit; 9. large fruit. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0032] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described herein can be implemented in an order other than those illustrated or described herein.

[0033] It should be understood that in various embodiments of the present invention, the size of the serial number of each process does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0034] It should be understood that in the present invention, "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0035] It should be understood that in the present utility model, "plurality" refers to two or more than two. "And / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, X and / or Y can represent: X exists alone, X and Y exist at the same time, and Y exists alone. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. "Contains X, Y and Z", "Contains X, Y, Z" means that X, Y, and Z are all included, "Contains X, Y or Z" means that one of X, Y, and Z is included, and "Contains X, Y and / or Z" means that any one, any two, or any three of X, Y, and Z are included.

[0036] The following specific embodiments are used to describe the technical solution of the utility model in detail. The following specific embodiments can be combined or replaced with each other according to actual conditions, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0037] like Figures 1 to 5 As shown, the utility model provides a fruit support mechanism that is self-adjusting to the diameter of the fruit, which is suitable for a multi-station turnover device for fruits. For the same type of fruit, the diameter of the fruit is usually proportional to the weight. The larger the fruit, the larger the corresponding weight. The smaller the fruit, the smaller the weight. Therefore, the size can be replaced by weight equivalent. The multi-station turnover device for fruits includes a net-covering station, and the net-covering station is provided with a net-covering port. The mechanism of the self-adjusting tray 1 for the fruit diameter includes a tray 1, a bracket 2 and a guide shaft 3. The bracket 2 is provided with a vertically opened guide hole 21. The tray 1 is fixedly connected to the guide shaft 3. The guide shaft 3 slides through the guide hole 21 so that the tray 1 can be lifted and lowered above the bracket 2. The outer circle of the guide shaft 3 is provided with a spring 4 located between the tray 1 and the bracket 2. The spring 4 lifts the tray 1 upward. When in use, the spring 4 is compressed by the gravity of the fruit on the tray 1, so that the height of the tray 1 changes with the weight of the fruit on the tray 1, ensuring that when fruits of different sizes are at the position of the net-setting station, the distance from the top of the fruit to the bottom of the bracket 2 tends to be constant, so that the distances from fruits of different sizes to the net-setting opening tend to be consistent, which is conducive to achieving accurate net-setting and can also make the adjustment structure simpler. In addition, the spring 4 will be compressed when the fruit is placed on the tray 1, and the spring 4 plays a buffering role, which is conducive to reducing and preventing the fruit from bumping. Finally, the guide shaft 3 can also limit the moving direction of the tray 1, effectively avoiding the tilt of the spring 4, and further making the diameter of the fruit tend to be proportional to the compression amount of the spring 4.

[0038] Preferably, the guide shaft 3 and the spring 4 are coaxially arranged, and the guide shaft 3 is arranged at the center of the tray 1, which is conducive to making the movement direction of the guide shaft 3 and the compression direction of the spring 4 tend to be consistent, so that the height of the tray 1 is more accurate.

[0039] In order to further improve the stability of the spring 4 during movement, a vertically arranged guide column 11 is provided on the tray 1. The top end of the spring 4 is sleeved on the guide column 11, which can ensure that the spring 4 maintains a stable position during movement and is not prone to shaking or deviation, thereby improving the stability of the tray 1 mechanism.

[0040] In addition, a vertically arranged guide ring 22 is provided on the bracket 2, a guide cavity 23 is provided in the guide ring 22, and the bottom end of the spring 4 is arranged in the guide cavity 23. The guide ring 22 can effectively fix the bottom end of the spring 4 to prevent the spring 4 from shaking or falling off during movement, thereby further improving the stability and reliability of the tray 1 mechanism.

[0041] It should be noted that when the tray 1 is at an initial height, there is a gap between the guide post 11 and the guide ring 22 , and the gap is the movable range of the tray 1 .

[0042] Among them, a linear bearing 6 is arranged in the guide hole 21, and the linear bearing 6 is provided with a bearing hole 63, a bearing body 61 and a bearing seat 62. The guide shaft 3 can be lifted and lowered through the bearing hole 63, and is rotatably connected with the bearing hole 63. The linear bearing 6 is fixedly connected with the bracket 2 through the bearing seat 62, and the bearing body 61 is arranged vertically. The linear bearing 6 can provide a smooth sliding movement, so that the guide shaft 3 can be easily lifted and lowered in the bearing hole 63, ensuring that the height adjustment process of the tray 1 is smooth and unobstructed. Secondly, the linear bearing 6 can bear a large load, ensuring the stability and reliability of the tray 1 when bearing the weight of the fruit, and the guide shaft 3 can also rotate relative to the linear bearing 6 to realize the rotation of the tray 1.

[0043] In order to make the structure more compact, a receiving cavity 12 for accommodating the bearing body 61 is provided in the guide column 11. When the tray 1 is at the lowest height, the bearing body 61 is offset against the cavity 12, limiting the maximum movement of the tray 1, so that the position of the fruit is within the required height range of the next workstation. It can also limit the maximum compression of the spring 4, which is beneficial to reduce damage to the spring 4, save space, and make the structure of the tray 1 mechanism more compact.

[0044] In order to further improve the accuracy of adjustment, a limit piece is provided at the bottom end of the guide shaft 3, and the limit piece is located on the side of the bracket 2 away from the spring 4. When the tray 1 is at the initial height, the limit piece and the bracket 2 are abutted to make the spring 4 in a pre-tightened state, so that the spring 4 has sufficient tension and supporting force to ensure that the increase in the fruit diameter tends to be proportional to the compression of the spring 4, which is conducive to making the positions of fruits of different sizes in the next set of net stations further tend to be constant.

[0045] Since the spring 4 is easily damaged after long-term compression and different fruits are suitable for different trays 1, the top end of the guide shaft 3 is detachably connected to the tray 1 through a connecting assembly. The guide shaft 3 and the tray 1 can be easily separated, which is convenient for replacing, maintaining and repairing various parts of the mechanism, reducing maintenance time and cost. When the guide shaft and the tray 1 are separated, the spring 4 sleeved on the guide column 11 can also be disassembled.

[0046] Specifically, the connecting assembly includes a second bolt 52, a second threaded hole 32 is provided at the top end of the guide shaft 3, and a through hole 13 is provided on the tray 1 for the second bolt 52 to pass through and is threadedly connected to the second threaded hole 32. By disassembling and installing the second bolt 52, the guide shaft 3 and the tray 1 can be easily disassembled and installed, which is convenient for maintenance and replacement of parts. After the second bolt 52 is installed, the height of the second bolt 52 is not higher than the through hole 13, so that the inside of the tray 1 is smoother, which is beneficial to reduce collision with the fruit.

[0047] In addition, a first threaded hole 31 is provided at the bottom end of the guide shaft 3, and the limiting member is a first bolt 51. The first bolt 51 is screwed out of the first threaded hole 31 to disassemble and separate the guide shaft 3 and the bracket 2. By screwing out the first bolt 51, the guide shaft 3 and the bracket 2 can be easily disassembled and separated, which is convenient for maintaining and repairing various components of the mechanism and reducing maintenance time and cost. By screwing in the first bolt 51, when the tray 1 is at the initial height, the first bolt 51 is abutted against the bracket 2 to put the spring 4 in a pre-tightened state.

[0048] When in use, firstly, the corresponding spring 4 is selected according to the type of fruit, and when the tray 1 is at an initial height, the first bolt 51 abuts against the bracket 2 to put the spring 4 in a pre-tightened state.

[0049] like Figure 3 As shown, when the small fruits 7 enter the tray 1, the tray 1 does not move.

[0050] like Figure 4 As shown, when the fruit 8 enters the tray 1, since the gravity of the fruit is greater than the reverse force of the spring 4 at this time, the spring 4 will be compressed, and the guide shaft 3 connected to the tray 1 moves in the linear bearing 6 on the bracket 2 and passes through the bracket 2. The secondary compression amount of the spring 4 is equal to the increase in the fruit diameter, ensuring that the distance from the upper end of the fruit to the bottom of the bracket 2 is constant.

[0051] like Figure 5 As shown, as the weight of the fruit continues to increase, when the large fruit 9 enters the tray 1, since the gravity of the large fruit 9 is greater than the reverse force of the spring 4 at this time, the spring 4 will be compressed, and the guide shaft 3 connected to the tray 1 moves in the linear bearing 6 on the bracket 2 and passes through the bracket 2. The secondary compression amount of the spring 4 is equal to the increase in the fruit diameter, ensuring that the distance from the upper end of the fruit to the bottom of the bracket 2 is constant.

[0052] It should be noted that when the fruit reaches the maximum size, the bearing body 61 abuts against the cavity of the accommodating cavity 12, and the corresponding spring 4 is also compressed to the extreme, and the spring 4 is no longer compressed.

[0053] It should be noted that the fruit may be apples, pears, citrus fruits, etc.

[0054] The spring 4 in the utility model is calculated and selected and matched. The following is an example of an apple fruit: the diameter of the apple fruit is 80mm-100mm, and the corresponding weight range of the apple fruit is 200g-450g. When the spring 4 changes from 80mm fruit to 100mm fruit, the secondary compression amount of the spring 4 changes from 0 to 20mm. The initial compression amount of the spring 4 is constrained by the dead weight of the tray 1 and the distance to the bracket 2.

[0055] In addition to the above-mentioned preferred embodiments, the present invention also has other implementation modes. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection requested by the present invention.

Claims

1. A fruit support mechanism that can adjust the fruit diameter automatically, characterized in that: The utility model comprises a tray, a bracket and a guide shaft, wherein the bracket is provided with a guide hole opened vertically, the tray is fixedly connected to the guide shaft, the guide shaft slides through the guide hole so that the tray can be raised and lowered above the bracket, the outer circle of the guide shaft is provided with a spring located between the tray and the bracket, the spring lifts the tray upward, and when in use, the spring is compressed by the gravity of the fruit on the tray so that the height of the tray changes with the weight of the fruit on the tray.

2. The fruit holder mechanism capable of self-adjusting fruit diameter according to claim 1, characterized in that: A limiting piece is provided at the bottom end of the guide shaft, and the limiting piece is located on the side of the bracket away from the spring. When the tray is at an initial height, the limiting piece abuts against the bracket to put the spring in a pre-tightened state.

3. The fruit holder mechanism capable of self-adjusting fruit diameter according to claim 2, characterized in that: A linear bearing fixedly connected to the bracket is arranged in the guide hole, the linear bearing is provided with a bearing hole, and the guide shaft can be lifted and lowered through the bearing hole.

4. The fruit holder mechanism capable of self-adjusting fruit diameter according to claim 3, characterized in that: A first threaded hole is provided at the bottom end of the guide shaft, and the limiting member is a first bolt. The head diameter of the first bolt is larger than the guide hole, and the first bolt is screwed out of the first threaded hole to disassemble and separate the guide shaft and the bracket.

5. The fruit holder mechanism capable of self-adjusting fruit diameter according to claim 1, characterized in that: The top end of the guide shaft is detachably connected to the tray via a connecting assembly.

6. The fruit holder mechanism capable of self-adjusting fruit diameter according to claim 5, characterized in that: The connecting assembly includes a second bolt, a second threaded hole is provided at the top end of the guide shaft, and a through hole is provided on the tray for the second bolt to pass through and be threadedly connected with the second threaded hole.

7. The fruit holder mechanism capable of self-adjusting fruit diameter according to claim 1, characterized in that: The tray is provided with a vertically arranged guide column, and the top end of the spring is sleeved on the guide column.

8. The fruit holder mechanism capable of self-adjusting fruit diameter according to claim 7, characterized in that: A linear bearing is provided in the guide hole, and the linear bearing is provided with a bearing hole, a bearing body and a bearing seat. The guide shaft can be raised and lowered through the bearing hole, and the linear bearing is fixedly connected to the bracket through the bearing seat. The bearing body is arranged vertically, and a receiving cavity for receiving the bearing body is provided in the guide column. When the tray is at the lowest height, the bearing body and the cavity of the receiving cavity are abutted against each other.

9. The fruit holder mechanism capable of self-adjusting fruit diameter according to claim 1, characterized in that: A vertically arranged guide ring is arranged on the bracket, a guide cavity is arranged in the guide ring, and the bottom end of the spring is arranged in the guide cavity.

10. The fruit holder mechanism capable of self-adjusting fruit diameter according to claim 1, characterized in that: The guide shaft and the spring are coaxially arranged.

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