Litchi picking terminal mechanism

Abstract

The utility model relates to picking mechanism technical field discloses a litchi picking end mechanism, including fixed link, the fixed link side wall is provided with fixed blade, the fixed blade side wall is provided with fixed subassembly, the fixed blade side wall is rotatably connected with cutting blade, the cutting blade side wall is provided with cleaning subassembly, the fixed subassembly includes the clamping block, the fixed blade side wall fixedly connected with fixed frame, the clamping block side wall sliding connection is in the fixed frame interior, the clamping block side wall fixedly connected with the limit stop, the limit stop side wall sliding connection is in the fixed frame interior. In the utility model, when silica gel strip wears, pull fixed plate extrusion clamping block, make it with limit stop compression first spring and slide to fixed frame, after clamping block separates fixed hole, can quickly take down fixed plate and replace silica gel strip, solved the silica gel strip replacement cumbersome time -consuming problem, promoted replacement efficiency.

Description

Technical Field

[0001] This utility model relates to the field of harvesting mechanism technology, and in particular to a lychee harvesting end mechanism. Background Technology

[0002] In the development of modern agriculture, lychee harvesting is a crucial part of fruit harvesting. Traditional manual harvesting suffers from low efficiency, high labor intensity, and high labor costs, making it difficult to meet the production needs of large-scale orchards. Therefore, the lychee harvesting end mechanism, as a key component of mechanized harvesting equipment, automates the clamping and cutting of lychee stems, effectively improving harvesting efficiency and reducing reliance on manual labor. This has become an important research direction for intelligent production in orchards.

[0003] Existing lychee harvesting end mechanisms typically employ a fixed clamping structure and an integrated cutting assembly. The clamping components are mostly grippers or fixed clamps made of rigid materials, achieving the clamping action through mechanical transmission; the cutting assembly uses a combination of fixed and rotatable blades, relying on a motor or hydraulic system to drive relative movement to cut the fruit stem.

[0004] The clamping components typically use bolts to fix silicone strips to secure the fruit stem during harvesting. However, the silicone strips are prone to hardening and cracking due to frequent contact with the fruit stem, juice, and other substances. Once the silicone strips are worn, tools are needed to disassemble or even replace them, which is cumbersome and time-consuming. Therefore, a lychee harvesting end mechanism is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a lychee picking end mechanism, which aims to improve the problem of cumbersome and time-consuming operation of replacing silicone strips after wear in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A lychee harvesting end mechanism includes a fixing rod, a fixing blade provided on the side wall of the fixing rod, a fixing component provided on the side wall of the fixing blade, a cutting blade rotatably connected to the side wall of the fixing blade, and a cleaning component provided on the side wall of the cutting blade.

[0008] The fixing component includes a locking block, a fixing frame is fixedly connected to the side wall of the fixing blade, the side wall of the locking block is slidably connected inside the fixing frame, a limit block is fixedly connected to the side wall of the locking block, the side wall of the limit block is slidably connected inside the fixing frame, a first spring is provided inside the fixing frame, the side wall of the first spring is fixedly connected between the limit blocks, a fixing plate is provided on the side wall of the fixing blade, a silicone strip is fixedly connected to the side wall of the fixing plate, and a fixing hole is opened inside the fixing plate.

[0009] As a further description of the above technical solution:

[0010] The cleaning assembly includes a scraper, the scraper sidewall of which is slidably connected to the sidewall of the cutting blade.

[0011] As a further description of the above technical solution:

[0012] The cutting blade is fixedly connected to the scraper sidewall by a fixing bracket, and the cutting blade sidewall is provided with a sleeve.

[0013] As a further description of the above technical solution:

[0014] One side of the sleeve is rotatably connected to the inside of the fixed frame above, and a connecting rod is slidably connected inside the sleeve.

[0015] As a further description of the above technical solution:

[0016] A fixing block is fixedly connected to one side of the connecting rod, and the side wall of the fixing block is rotatably connected to the inside of the fixing frame below.

[0017] As a further description of the above technical solution:

[0018] A pressing block is fixedly connected to the side wall of the connecting rod, and the side wall of the pressing block is slidably connected inside the sleeve.

[0019] As a further description of the above technical solution:

[0020] A second spring is fixedly connected inside the sleeve, and the sidewall of the second spring is fixedly connected to the sidewall of the extrusion block.

[0021] As a further description of the above technical solution:

[0022] The fixing frame is slidably connected to the side wall of the card block inside the fixing hole.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, after the silicone strip is worn, the fixing plate is pulled, which squeezes the locking block, causing the locking block and the limiting block to slide into the fixing frame and compress the first spring. When the locking block disengages from the fixing hole, the fixing plate can be removed to replace the silicone strip. This solves the problem of cumbersome and time-consuming operation when replacing silicone strips after they are worn. The above technical solution improves the efficiency of silicone strip replacement.

[0025] 2. In this utility model, when cutting the fruit stem, the scraper is obstructed and drives the connecting rod to slide inside the sleeve. The extrusion block compresses the second spring, causing the scraper to retract. After the fruit stem is cut off, the second spring pushes the extrusion block to reset, causing the scraper to extend and scrape off the residue. This solves the problem that fruit stem debris and juice are easily left on the side wall of the cutting blade, affecting the subsequent cutting efficiency. The above technical solution improves the cleanliness of the cutting blade and the continuity of equipment operation. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a lychee picking end mechanism proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the shearing structure of a litchi harvesting end mechanism proposed in this utility model;

[0028] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0029] Figure 4 This is a schematic diagram of the silicone strip structure of a litchi harvesting end mechanism proposed in this utility model.

[0030] Figure 5 This is a schematic diagram of the scraper structure of a litchi harvesting end mechanism proposed in this utility model.

[0031] Legend:

[0032] 1. Fixing rod; 2. Fixing blade; 3. Cutting blade; 4. Fixing frame; 5. Clamping block; 6. Limiting block; 7. First spring; 8. Fixing plate; 9. Silicone strip; 10. Fixing hole; 11. Scraper; 12. Fixing bracket; 13. Sleeve; 14. Connecting rod; 15. Fixing block; 16. Extrusion block; 17. Second spring. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figures 1-4This utility model provides an embodiment of a lychee harvesting end mechanism, including a fixed rod 1, a fixed blade 2 disposed on the side wall of the fixed rod 1, a fixed assembly disposed on the side wall of the fixed blade 2, and a cutting blade 3 rotatably connected to the side wall of the fixed blade 2. The fixed blade 2 provides a fixed cutting surface and works with the cutting blade 3 to cut the lychee stem, thereby separating the lychee from the branch. A cleaning assembly is disposed on the side wall of the cutting blade 3. The fixed assembly includes a locking block 5, a fixed frame 4 fixedly connected to the side wall of the fixed blade 2, a sliding connection of the locking block 5 to the inside of the fixed frame 4, and a limiting block 6 fixedly connected to the side wall of the locking block 5. The limiting block 6 is slidably connected to the side wall of the limiting block 6. Inside the fixed frame 4, a first spring 7 is provided. The first spring 7 is used to provide elastic restoring force for the card block 5, so that the card block 5 maintains the tendency to pop outward when no external force is applied, thereby realizing the quick installation and disassembly of the fixed plate 8, which is convenient for maintenance and replacement of the silicone strip 9. The side wall of the first spring 7 is fixedly connected between the limit blocks 6. The side wall of the fixed blade 2 is provided with a fixed plate 8, and the side wall of the fixed plate 8 is fixedly connected with a silicone strip 9. The silicone strip 9 is used to clamp the lychee stem during picking, and its elasticity prevents the stem from sliding, thus playing a role in stabilizing and fixing the stem. The fixed plate 8 has a fixed hole 10 inside, and the side wall of the fixed frame 4 and the card block 5 are slidably connected inside the fixed hole 10.

[0035] Reference Figure 1 and Figure 5 The cleaning assembly includes a scraper 11, which scrapes away fruit stem fragments, juice, and other debris remaining on the side wall of the cutting blade 3, thus cleaning the cutting blade 3. The side wall of the scraper 11 is slidably connected to the side wall of the cutting blade 3. A fixing bracket 12 is fixedly connected to the side wall of the cutting blade 3 and the scraper 11. A sleeve 13 is provided on the side wall of the cutting blade 3. The sleeve 13 provides sliding space and guidance for the connecting rod 14 and the pressing block 16, thus constraining their movement direction and ensuring that the scraper 11 can extend, retract, and slide along a predetermined trajectory. One side of the sleeve 13 is rotatably connected to the inside of the upper fixing bracket 12. The connecting rod 14 is slidably connected inside the sleeve 13. A fixing block 15 is fixedly connected to one side of the connecting rod 14. The side wall of block 15 is rotatably connected to the inside of the lower fixed frame 12. The side wall of connecting rod 14 is fixedly connected to the pressing block 16. The side wall of pressing block 16 is slidably connected to the inside of sleeve 13. The fixed block 15 is used to rotatably connect with the lower fixed frame 12. With the help of connecting rod 14, pressing block 16 can slide in sleeve 13, thereby providing a movable basis for the extension and retraction of scraper 11. The inside of sleeve 13 is fixedly connected to a second spring 17. The side wall of second spring 17 is fixedly connected to the side wall of pressing block 16. Second spring 17 is used to provide elastic restoring force for pressing block 16, so that scraper 11 remains in the extended state when not subjected to external force. With the help of pressing block 16, the extension and retraction of scraper 11 is realized, thereby achieving the effect of automatically cleaning cutting blade 3.

[0036] Working principle: When cutting the lychee stem, the cutting blade 3 rotates around the connection point with the fixed blade 2. The relative motion between the two generates shearing force to cut the stem. During this process, the silicone strip 9 installed on the fixed plate 8 uses elastic deformation to wrap the stem and provide friction to prevent the stem from sliding. When the silicone strip 9 hardens, cracks or wears out due to long-term use, it pulls the fixed plate 8 to make it displaced. The fixed plate 8 squeezes the locking block 5, forcing the locking block 5 and the limiting block 6 to slide into the fixed frame 4 and compress the first spring 7. When the locking block 5 is completely disengaged from the fixing hole 10 of the fixed plate 8, the constraint on the fixed plate 8 can be released, and the silicone strip 9 can be removed and replaced.

[0037] When the cutting blade 3 rotates to cut the fruit stem, when the scraper 11 comes into contact with obstacles such as the lychee stem, it will be displaced due to obstruction, causing the connecting rod 14 to slide inside the sleeve 13. This, in turn, pushes the squeezing block 16 to compress the second spring 17, causing the scraper 11 to retract to the side wall of the cutting blade 3, thus avoiding interference with the normal cutting action. After the fruit stem is cut off, the cutting blade 3 stops rotating, and the second spring 17 releases its elastic potential energy to push the squeezing block 16 back to its original position. Through the connecting rod 14, the scraper 11 extends and slides along the side wall of the cutting blade 3 to scrape off any remaining fruit stem debris and juice, completing the cleaning operation.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lychee picking end mechanism, comprising a fixing rod (1), characterized in that: The fixing rod (1) is provided with a fixing blade (2) on its side wall, the fixing blade (2) is provided with a fixing component on its side wall, the fixing blade (2) is rotatably connected with a cutting blade (3) on its side wall, and the cutting blade (3) is provided with a cleaning component on its side wall; The fixing component includes a locking block (5), a fixing frame (4) is fixedly connected to the side wall of the fixing blade (2), the side wall of the locking block (5) is slidably connected to the inside of the fixing frame (4), a limiting block (6) is fixedly connected to the side wall of the locking block (5), the side wall of the limiting block (6) is slidably connected to the inside of the fixing frame (4), a first spring (7) is provided inside the fixing frame (4), the side wall of the first spring (7) is fixedly connected between the limiting blocks (6), a fixing plate (8) is provided on the side wall of the fixing blade (2), a silicone strip (9) is fixedly connected to the side wall of the fixing plate (8), and a fixing hole (10) is opened inside the fixing plate (8).

2. The litchi harvesting end mechanism according to claim 1, characterized in that: The cleaning assembly includes a scraper (11) whose sidewall is slidably connected to the sidewall of the cutting blade (3).

3. The litchi harvesting end mechanism according to claim 2, characterized in that: The cutting blade (3) is fixedly connected to the side wall of the scraper (11) by a fixing bracket (12), and the side wall of the cutting blade (3) is provided with a sleeve (13).

4. The litchi harvesting end mechanism according to claim 3, characterized in that: The sleeve (13) is rotatably connected to the inside of the upper fixed frame (12) on one side, and a connecting rod (14) is slidably connected inside the sleeve (13).

5. The litchi harvesting end mechanism according to claim 4, characterized in that: A fixing block (15) is fixedly connected to one side of the connecting rod (14), and the side wall of the fixing block (15) is rotatably connected to the inside of the fixing frame (12) below.

6. The litchi harvesting end mechanism according to claim 5, characterized in that: The side wall of the connecting rod (14) is fixedly connected to an extrusion block (16), and the side wall of the extrusion block (16) is slidably connected inside the sleeve (13).

7. The litchi harvesting end mechanism according to claim 6, characterized in that: A second spring (17) is fixedly connected inside the sleeve (13), and the side wall of the second spring (17) is fixedly connected to the side wall of the extrusion block (16).

8. The litchi harvesting end mechanism according to claim 1, characterized in that: The fixing frame (4) and the side wall of the card block (5) are slidably connected inside the fixing hole (10).

Images