Automatic picking device for top-down layered pointy branch jujube

Abstract

The application discloses an automatic jujube fruit picking device from top to bottom layer point shaking branch, which comprises a shaking branch mechanism, a lifting mechanism, a filtering mechanism and a fixing mechanism; the shaking branch mechanism is located at the top of the lifting mechanism, the filtering mechanism is slidingly installed on the outer surface of the lifting mechanism, and the fixing mechanism is located at the bottom of the lifting mechanism; the device can be used for targeted picking of a certain area of a jujube tree, the two shaking branch plates are conical, can be blocked by the jujube branches during the descending process, are convenient to retract and can make the whole device descend, the shaking branch mechanism can be lowered through the action of the rotating plate and the top rod, the contact area with the jujube tree is increased through the setting of the vibrating ring, and the shaking is more thorough, the device shakes only a certain branch of the jujube tree from top to bottom layer point, and therefore does not cause damage to the jujube tree trunk, and the safety of the jujube tree is ensured under the premise that the jujube fruits are completely picked.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology. Specifically, it is an automatic harvesting device for jujube fruits that is harvested from top to bottom in a layered, point-like pattern. Background Technology

[0002] Currently, existing techniques typically involve shaking the trunk or all branches of the jujube tree to harvest the fruit. Shaking the trunk requires considerable force, which can damage the tree and result in incomplete harvesting. Furthermore, jujube flowers are inflorescences, and flower bud differentiation occurs simultaneously with fruit development, leading to inconsistent ripening times for fruits on the same inflorescence. Different inflorescences and different parts of the tree exhibit even greater differences in ripening time due to variations in inflorescence differentiation or sunlight exposure. Shaking the trunk or all branches can cause unripe fruits to fall. Summary of the Invention

[0003] Therefore, the technical problem to be solved by the present invention is to provide an automatic jujube fruit harvesting device that can harvest jujube fruit from a top-down layered point-shaped branch shaking method, which can harvest jujube fruit from a certain area of ​​the jujube tree and prevent damage to the trunk.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0005] The automatic harvesting device for jujube fruits with top-to-bottom layered point-shaped branch shaking includes a branch shaking mechanism, a lifting mechanism, a filtering mechanism, and a fixing mechanism; the branch shaking mechanism is located at the top of the lifting mechanism, the filtering mechanism is slidably installed on the outer surface of the lifting mechanism, and the fixing mechanism is located at the bottom of the lifting mechanism.

[0006] The aforementioned top-to-bottom layered, point-shaped automatic jujube harvesting device comprises a shaking mechanism including a slider, shaking plates, a top extension spring, a folding plate, a vibrating ring, an oscillator, a rotating plate, a top rod, a connecting shaft, a compression spring, a first toothed plate, a gear, a second toothed plate, an iron plug, an electromagnet, a first limiting block, and a cavity. The slider has a through hole inside, and the shaking plates are rotatably connected inside the slider. Two shaking plates are installed opposite each other at both ends of the through hole. The top extension spring is fixedly connected to the bottom of one opposite side of each of the two shaking plates. The folding plate... The ends are respectively fixedly connected to the top of the opposite side of the shaking plate. The vibration ring is fixedly installed on the top of the other side of the shaking plate. The oscillator is fixedly installed inside the shaking plate. The rotating plate is rotatably connected to the middle of the opposite side of the shaking plate. There are two rotating plates. The two rotating plates are rotatably connected at opposite ends by a connecting shaft. One end of the top of the push rod is also rotatably connected to the connecting shaft. The other end of the push rod passes through the through hole and is located inside the cavity and is fixedly connected to the first toothed plate. The first toothed plate meshes with the gear. The gear is rotatably connected to the cavity. Inside the cavity, one end of the second toothed plate is fixedly connected to the bottom of the slider, and the second toothed plate meshes with the gear. The iron plug is fixedly installed at the bottom of the top rod. The two ends of the compression spring are fixedly connected to the bottom of the slider and the top of the cavity, respectively. An electromagnet that cooperates with the iron plug is fixedly installed at the bottom of the cavity. The first limiting block is fixedly connected to the outer wall of the first toothed plate and can contact the bottom of the slider. By extending and retracting the shaking mechanism above the jujube tree, the shaking plate extends, and the jujube tree is shaken under the action of the vibrator, thereby… This device enables targeted harvesting of specific areas of jujube trees. The two cone-shaped shaking plates are designed to withstand the resistance of the jujube branches during descent, facilitating retraction and overall lowering of the device. The shaking mechanism descends via a rotating plate and a top rod. The vibrating ring increases the contact area with the jujube tree, resulting in more thorough shaking. A folding plate prevents debris from entering the angled areas of the shaking plates during operation. This device uses a top-down, layered, point-based shaking motion, targeting only a specific branch of the jujube tree, thus preventing damage to the trunk and ensuring the safety of the jujube tree while ensuring thorough harvesting.

[0007] The aforementioned top-to-bottom layered, point-shaped, automatic jujube harvesting device includes a lifting mechanism comprising a transmission box, a forward and reverse motor, a threaded cylinder, a pressure-reducing spring, a pressure-reducing plate, a slide cylinder, an adjusting bolt, a compensating spring, a fixed rod, a sliding block, a fixing bolt, a slide rod, a shock-absorbing box, and a threaded rod. The forward and reverse motor is located inside the transmission box, and its forward and reverse rotation speeds are autonomously controllable. The output end of the forward and reverse motor is driven connected to one end of the threaded cylinder. One end of the pressure-reducing spring is fixedly connected inside the threaded cylinder, and the other end is fixedly connected to one side of the pressure-reducing plate, which is located inside the threaded cylinder. The slide cylinder is slidably connected to the outer surface of the threaded cylinder. The adjusting bolt passes through the interior of the slide cylinder and abuts against the threaded cylinder. One end of the compensating spring is fixedly connected to one end inside the slide cylinder, and the other end abuts against the outer wall of the threaded cylinder. The fixed rod... One end of the fixed rod is rotatably connected to the outer wall of the sliding cylinder, and the other end of the fixed rod is rotatably connected to the sliding block. The sliding block is slidably connected to the outer surface of the sliding rod. The fixing bolt passes through the interior of the sliding block and can abut against the sliding rod. The sliding rod is installed on the top of the shock-absorbing box, and the shock-absorbing box is fixedly installed on both sides of the transmission box. The threaded rod is rotatably connected to the interior of the threaded cylinder, and the interior of the threaded cylinder has the cavity. The shaking mechanism is located inside the threaded rod. By setting forward and reverse motors, the threaded rod can perform cyclic reciprocating motion inside the threaded cylinder, and the downward amplitude of the threaded rod is greater than the upward amplitude, so that the device can achieve layered point shaking harvesting of jujubes from top to bottom. Through the reciprocating motion of the threaded rod and the vibration of the shaking plate, the double harvesting achieves a more thorough harvesting of jujubes. At the same time, by adjusting the angle of the fixed rod, the threaded cylinder and the fixed rod form a stable triangle, increasing the stability of the device.

[0008] The aforementioned top-to-bottom layered, point-shaped, automatic jujube harvesting device includes a filtration mechanism comprising a filter box, filter holes, an adjusting plate, adjusting holes, an adjusting cylinder, a recovery box, a first recovery hole, a second recovery hole, a dispersing plate, a combing roller, a discharge pipe, a fastening sleeve, a fastening nut, a lead screw, a drive motor, a sliding plate, and a cleaning cylinder. The filter box is a closed, square shape. The filter holes are located at the top of the filter box. The adjusting plate is located inside the filter box and contacts the inner top wall of the filter box. The adjusting holes are located on the outer surface of the adjusting plate, and the diameter of the adjusting holes is larger than the diameter of the filter holes. The cylinder passes through the top of the filter box and is fixedly connected to the adjusting plate. The adjusting cylinder is slidably connected to the outer wall of the threaded cylinder. The recovery box is located on the outer wall of the filter box, and the top of the recovery box is at the same height as the top of the filter box. The first recovery hole is located at the top of the recovery box, and the second recovery hole is located on the outer wall of the recovery box that contacts the filter box, allowing fluid to flow between the recovery box and the filter box. The dispersing plate is located at the bottom of the adjusting hole. The combing roller is rotatably connected inside the filter box and located between the second recovery hole and the dispersing plate. At the bottom, there are two or more carding rollers, arranged in pairs, with each pair of carding rollers facing each other. The discharge pipe is located at the bottom of the filter box, with its output end facing the bottom of the gap between the two carding rollers in each pair. The fastening sleeve is located at the bottom of the adjusting cylinder and slidably connected to the outer wall of the threaded cylinder. The fastening nut is rotatably connected to the outer surface of the fastening sleeve. The lead screw is located on the outer surface of the filter box and the recycling box, with one end of the lead screw fixedly connected to the output of the drive motor. The sliding plate is slidably connected... The cleaning cylinder is rotatably connected to the outer wall of the slide plate and is in contact with the upper surface of the filter box. The fastening sleeve allows the filter mechanism to move up and down with the threaded rod, preventing the collecting part from being too far from the shaking mechanism during jujube harvesting, which could cause the jujubes to fall and be damaged. At the same time, the diameter of the filter holes can be adjusted by the adjusting plate, making the device suitable for harvesting different types and sizes of jujubes. Under the action of the combing roller, the jujubes are arranged and sent out of the device, preventing the jujubes from being crushed due to excessive quantity or other phenomena during harvesting.

[0009] The aforementioned top-to-bottom layered, point-shaped, automatic jujube harvesting device includes a fixing mechanism comprising a slip ring, a compensation ring, a second limiting block, a stop block, a clamping plate, a buckle, a sliding box, a shock-absorbing spring, a fixing plate, a limiting bolt, a fixing ring, a fixing column, and a fixing disc. The slip ring consists of four arc plates, with each pair of arc plates forming a group. The compensation ring is slidably connected to one end of each group of two arc plates in contact. The compensation ring is arc-shaped, and there are two compensation rings. The second limiting block is fixedly installed on both sides of the compensation ring. The stop block is located on both sides inside the contact end of each pair of arc plates. The other end of one group of arc plates is fixedly connected to the clamping plate, and the other group of arc plates is fixedly connected to the buckle. The clamping plate engages with the buckle. The bottom of the sliding box is slidably connected to the outer wall of the slip ring, and the top of the sliding box is fixedly connected to the bottom of the transmission box. One end of the shock-absorbing spring is fixedly connected to the inner wall of the sliding box, and the other end of the shock-absorbing spring is fixedly connected to the fixed plate. The fixed plate is located inside the sliding box. The limiting bolt passes through the sliding box and is located inside the shock-absorbing spring, and the limiting bolt can abut against the fixed plate. The outer wall of the fixed ring is fixedly connected to the arc plate. The fixing column passes through the inside of the fixed ring. There are two or more fixing columns. The bottom of the fixing column is conical. The fixing plate is slidably connected to the outer wall of the end of the fixing column that passes through the inside of the fixed ring. The sliding box can slide on the outer surface of the sliding ring. At the same time, the size of the sliding ring can be changed by the compensation ring, thereby realizing the expansion of the sliding ring. This makes the device suitable for harvesting jujube trees of different sizes. At the same time, the stability of the device is ensured by the action of the shock-absorbing spring and the fixed column, and the vibration caused by the shaking mechanism is reduced.

[0010] The technical solution of the present invention achieves the following beneficial technical effects:

[0011] 1. This invention extends the shaking mechanism above the jujube tree, extending the shaking plates. Under the action of the vibrator, the jujube tree is shaken, thereby achieving targeted harvesting of a specific area of ​​the jujube tree. The two shaking plates are conical, allowing them to be resisted by the jujube branches during descent, facilitating retraction and overall descent of the device. The shaking mechanism is lowered by the action of the rotating plate and the top rod. The vibration ring increases the contact area with the jujube tree, resulting in more thorough shaking. The folding plate prevents debris from entering the angled area of ​​the shaking plates during operation. This device uses a top-down, layered, point-like shaking method, targeting only a specific branch of the jujube tree, thus avoiding damage to the trunk and ensuring the safety of the jujube tree while ensuring thorough harvesting.

[0012] 2. By setting up forward and reverse motors, this invention enables the threaded rod to perform cyclic reciprocating motion inside the threaded cylinder, and the downward amplitude of the threaded rod is greater than the upward amplitude. This allows the device to harvest jujubes in a layered, point-like manner from top to bottom. Through the reciprocating motion of the threaded rod and the vibration of the shaking plate, the double harvesting achieves a more thorough harvest of jujubes. At the same time, by adjusting the angle of the fixed rod, the threaded cylinder and the fixed rod form a stable triangle, increasing the stability of the device.

[0013] 3. The present invention, through the setting of the fastening sleeve, enables the filtering mechanism to move up and down with the threaded rod, preventing the collecting part from being too far from the shaking mechanism during jujube harvesting, which would cause the jujubes to fall and be damaged. At the same time, the diameter of the filter hole can be adjusted by the adjusting plate, making the device suitable for harvesting different types and sizes of jujubes. Furthermore, under the action of the combing roller, the jujubes are arranged and sent out of the device, preventing the jujubes from being crushed due to excessive quantity or other phenomena during harvesting.

[0014] 4. The sliding box of the present invention can slide on the outer surface of the slip ring, and the size of the slip ring can be changed by the compensation ring, thereby realizing the expansion of the slip ring. This makes the device suitable for harvesting jujube trees of different sizes. At the same time, the stability of the device is ensured by the action of the shock-absorbing spring and the fixed column, reducing the vibration caused by the branch shaking mechanism. Attached Figure Description

[0015] Figure 1 A schematic diagram of the internal structure of this invention from the front view;

[0016] Figure 2 This invention Figure 1 Enlarged structural diagram at point A;

[0017] Figure 3 A frontal view of the structural schematic diagram of this invention;

[0018] Figure 4 This invention Figure 1 Enlarged structural diagram at point B;

[0019] Figure 5 This invention Figure 1 Enlarged structural diagram at point C;

[0020] Figure 6 A schematic diagram of the internal structure of the filter box of this invention;

[0021] Figure 7 A schematic diagram of the filter box of this invention;

[0022] Figure 8 A top view of the slip ring structure of the present invention;

[0023] Figure 9A schematic diagram of the internal structure of the sliding box of this invention;

[0024] Figure 10 A schematic diagram of the internal structure of the fixing ring of the present invention.

[0025] The reference numerals in the figure are as follows: 100-shaking mechanism; 200-lifting mechanism; 300-filtering mechanism; 400-fixing mechanism; 101-slider; 102-shaking plate; 103-top extension spring; 104-folding plate; 105-vibration ring; 106-oscillator; 107-rotating plate; 108-top rod; 109-connecting shaft; 110-compression spring; 111-first toothed plate; 112-gear; 113-second toothed plate; 114-iron plug; 115-electromagnet; 116-first limit block; 117-cavity; 201-transmission box; 202-forward and reverse motor; 203-threaded cylinder; 204-pressure relief spring; 205-pressure relief plate; 206-slide cylinder; 207-adjusting bolt; 208-compensation spring; 209-fixing rod; 210-sliding block; 211- 212-Fixing bolt; 213-Shock absorber box; 214-Threaded rod; 301-Filter box; 302-Filter hole; 303-Adjusting plate; 304-Adjusting hole; 305-Adjusting cylinder; 306-Recovery box; 307-First recovery hole; 308-Second recovery hole; 309-Dispersion plate; 310-Card roller; 311-Discharge pipe; 312-Fasting sleeve; 313-Fasting nut; 314-Screw; 315-Drive motor; 316-Slide plate; 317-Cleaning cylinder; 401-Slip ring; 402-Compensation ring; 403-Second limit block; 404-Stop block; 405-Clamping plate; 406-Snap buckle; 407-Sliding box; 408-Shock absorber spring; 409-Fixing plate; 410-Limit bolt; 411-Fixing ring; 412-Fixing column; 413-Fixing disc. Detailed Implementation

[0026] This embodiment of the automatic harvesting device for jujube fruit with top-to-bottom layered point-shaped shaking branches includes a shaking mechanism 100, a lifting mechanism 200, a filtering mechanism 300, and a fixing mechanism 400; the shaking mechanism 100 is located at the top of the lifting mechanism 200, the filtering mechanism 300 is slidably installed on the outer surface of the lifting mechanism 200, and the fixing mechanism 400 is located at the bottom of the lifting mechanism 200.

[0027] like Figure 1-3As shown, the swaying mechanism 100 includes a slider 101, a swaying plate 102, a top extension spring 103, a folding plate 104, a vibration ring 105, an oscillator 106, a rotating plate 107, a top rod 108, a connecting shaft 109, a compression spring 110, a first toothed plate 111, a gear 112, a second toothed plate 113, an iron plug 114, an electromagnet 115, a first limiting block 116, and a cavity 117; the slider 101 has a through hole inside, and the swaying plate 102 is rotatably connected to... Inside the slider 101, there are two rocking plates 102, which are installed opposite each other and located at both ends of the through hole. The two ends of the extension spring 103 are fixedly connected to the bottom of the opposite side of each of the two rocking plates 102. The two ends of the folding plate 104 are fixedly connected to the top of the opposite side of each rocking plate 102. The vibration ring 105 is fixedly installed on the top of the other side of the rocking plate 102. The oscillator 106 is fixedly installed inside the rocking plate 102. Figure 4 As shown, two rotating plates 107 are rotatably connected to the middle of the opposite side of the rocking plate 102. The two rotating plates 107 are rotatably connected at opposite ends via a connecting shaft 109. One end of the top of the push rod 108 is also rotatably connected to the connecting shaft 109. The other end of the push rod 108 passes through a through hole and is located inside the cavity 117, and is fixedly connected to the first toothed plate 111. The first toothed plate 111 meshes with a gear 112, which is rotatably connected inside the cavity 117. One end of the second toothed plate 113 is fixedly connected to the bottom of the slider 101, and the second toothed plate 113 meshes with the gear 112. An iron plug 114 is fixedly installed at the bottom of the push rod 108. The two ends of the compression spring 110 are fixedly connected to the bottom of the slider 101 and the top of the cavity 117, respectively. An electromagnet 115, which cooperates with the iron plug 114, is fixedly installed at the bottom of the cavity 117. The first limiting block 116 is connected to the first toothed plate... The outer wall of 111 is fixedly connected, and the first limiting block 116 can contact the bottom of the slider 101. By extending the shaking mechanism above the jujube tree, the shaking plate 102 is extended, and the jujube tree is shaken under the action of the vibrator 106, thereby achieving targeted harvesting of a certain area of ​​the jujube tree. At the same time, the two shaking plates 102 are conical, which can be blocked by the jujube branches during the descent, making it easy to retract and lower the entire device. Through the action of the rotating plate 107 and the top rod 108, the shaking mechanism 100 is lowered. The setting of the vibration ring 105 can increase the contact area with the jujube tree, making the shaking more thorough. The setting of the folding plate 104 can prevent debris from entering the angle of the shaking plate 102 when it is working. This device shakes the jujube tree in layers from top to bottom, only shaking a certain branch of the jujube tree, so it will not damage the trunk of the jujube tree, etc., and ensures the safety of the jujube tree under the premise of thorough jujube harvesting.

[0028] like Figure 1 and Figure 5As shown, the lifting mechanism 200 includes a transmission box 201, a forward / reverse motor 202, a threaded cylinder 203, a pressure-reducing spring 204, a pressure-reducing plate 205, a slide cylinder 206, an adjusting bolt 207, a compensating spring 208, a fixing rod 209, a sliding block 210, a fixing bolt 211, a slide rod 212, a shock-absorbing box 213, and a threaded rod 214. The forward / reverse motor 202 is located inside the transmission box 201. The forward and reverse rotation of the forward / reverse motor 202, as well as its rotational speed, can be autonomously controlled. The output end of the forward / reverse motor 202 is connected to one end of the threaded cylinder 203. The drive connection includes a pressure-reducing spring 204, one end of which is fixedly connected to the inside of the threaded cylinder 203, and the other end of which is fixedly connected to one side of the pressure-reducing plate 205, which is located inside the threaded cylinder 203. A sliding cylinder 206 is slidably connected to the outer surface of the threaded cylinder 203. An adjusting bolt 207 passes through the inside of the sliding cylinder 206 and abuts against the threaded cylinder 203. One end of a compensating spring 208 is fixedly connected to one end inside the sliding cylinder 206, and the other end of the compensating spring 208 abuts against the outer wall of the threaded cylinder 203. A fixing rod 209 is also included. One end of the fixed rod 209 is rotatably connected to the outer wall of the sliding cylinder 206, and the other end of the fixed rod 209 is rotatably connected to the sliding block 210. The sliding block 210 is slidably connected to the outer surface of the sliding rod 212. The fixing bolt 211 passes through the interior of the sliding block 210 and abuts against the sliding rod 212. The sliding rod 212 is installed on the top of the shock absorber box 213. The shock absorber box 213 is fixedly installed on both sides of the transmission box 201. The threaded rod 214 is rotatably connected to the interior of the threaded cylinder 203. The interior of the threaded cylinder 203 has a cavity 117. The rocking mechanism 100 is located on the threaded rod 212. Inside the screw thread 214, the reciprocating motor 202 enables the screw thread 214 to reciprocate within the screw thread cylinder 203. The downward movement of the screw thread 214 is greater than its upward movement, allowing the device to harvest jujubes from top to bottom in a layered, point-like manner. The reciprocating motion of the screw thread 214 and the vibration of the shaking plate 102 result in a more thorough harvest of jujubes through dual harvesting. At the same time, by adjusting the angle of the fixed rod 209, the screw thread cylinder 203 and the fixed rod 209 form a stable tripod, increasing the stability of the device.

[0029] like Figure 6-7As shown, the filtration mechanism 300 includes a filter box 301, a filter hole 302, an adjusting plate 303, an adjusting hole 304, an adjusting cylinder 305, a recovery box 306, a first recovery hole 307, a second recovery hole 308, a dispersing plate 309, a combing roller 310, a discharge pipe 311, a fastening sleeve 312, a fastening nut 313, a lead screw 314, a drive motor 315, a sliding plate 316, and a cleaning cylinder 317. The filter box 301 is a closed square shape. The filter hole 302 is located at the top of the filter box 301. The adjusting plate 303 is located inside the filter box 301 and contacts the inner top wall of the filter box 301. The adjusting hole 304 is located on the outer surface of the adjusting plate 303, and the diameter of the adjusting hole 304 is large. The adjusting cylinder 305 passes through the top of the filter box 301 and is fixedly connected to the adjusting plate 303, with the diameter of the filter hole 302. The adjusting cylinder 305 is slidably connected to the outer wall of the threaded cylinder 203. The recovery box 306 is located on the outer wall of the filter box 301, and the top of the recovery box 306 is at the same height as the top of the filter box 301. The first recovery hole 307 is located at the top of the recovery box 306, and the second recovery hole 308 is located on the outer wall of the recovery box 306 that contacts the filter box 301. The second recovery hole 308 allows fluid to flow between the recovery box 306 and the filter box 301. The dispersing plate 309 is located at the bottom of the adjusting hole 304. The combing roller 310 is rotatably connected inside the filter box 301 and located at the second recovery hole. At the bottom of the orifice 308 and the dispersing plate 309, there are two or more carding rollers 310, arranged in pairs. The two carding rollers 310 in each pair are installed opposite each other. The discharge pipe 311 is located at the bottom of the filter box 301, with its output end facing the bottom of the relative gap between the two carding rollers 310 in each pair. The fastening sleeve 312 is located at the bottom of the adjusting cylinder 305 and is slidably connected to the outer wall of the threaded cylinder 203. The fastening nut 313 is rotatably connected to the outer surface of the fastening sleeve 312. The lead screw 314 is located on the outer surface of the filter box 301 and the recovery box 306. One end of the lead screw 314 is fixedly connected to the output of the drive motor 315. The sliding plate 316 slides... The cleaning cylinder 317 is rotatably connected to the outer wall of the screw 314 and the cleaning cylinder 317 is in contact with the upper surface of the filter box 301. Through the setting of the fastening sleeve 312, the filter mechanism 300 can move up and down with the screw rod 214 to prevent the collecting part from being too far away from the shaking mechanism 100 during the harvesting of jujubes, which would cause the jujubes to fall and be damaged. At the same time, the diameter of the filter hole 302 can be adjusted by the adjusting plate 303, so that this device is suitable for harvesting different types and sizes of jujubes. Under the action of the combing roller 310, the jujubes are arranged and sent out of the device to prevent the jujubes from being crushed due to excessive number of jujubes or other phenomena during the harvesting.

[0030] like Figure 8-10As shown, the fixing mechanism 400 includes a slip ring 401, a compensating ring 402, a second limiting block 403, a stop block 404, a clamping plate 405, a buckle 406, a sliding box 407, a shock-absorbing spring 408, a fixing plate 409, a limiting bolt 410, a fixing ring 411, a fixing column 412, and a fixing disc 413; the slip ring 401 is composed of four arc plates, with each pair of arc plates forming a group, and the compensating ring 402 is slidably connected to one end of each group of two arc plates in contact. The compensating ring 402 is arc-shaped, and the compensating ring... There are two 402 blocks. The second limiting block 403 is fixedly installed on both sides of the two ends of the compensation ring 402. The stop block 404 is located on both sides of the inside of each pair of arc plates at one end. The other end of one set of arc plates is fixedly connected to the clamping plate 405, and the other set of arc plates is fixedly connected to the buckle 406. The clamping plate 405 and the buckle 406 are engaged. The bottom of the sliding box 407 is slidably connected to the outer wall of the slip ring 401, and the top of the sliding box 407 is fixedly connected to the bottom of the transmission box 201. The shock absorber spring 408... One end of the damping spring 408 is fixedly connected to the inner wall of the sliding box 407, and the other end of the damping spring 408 is fixedly connected to the fixing plate 409. The fixing plate 409 is located inside the sliding box 407. The limiting bolt 410 passes through the sliding box 407 and is located inside the damping spring 408. The limiting bolt 410 can abut against the fixing plate 409. The outer wall of the fixing ring 411 is fixedly connected to the arc plate. The fixing column 412 passes through the inside of the fixing ring 411. There are two or more fixing columns 412. The bottom of the fixing column 412 is conical. The fixing plate 413 is slidably connected to the outer wall of the end of the fixing column 412 that passes through the inside of the fixing ring 411. The sliding box 407 can slide on the outer surface of the sliding ring 401. At the same time, the size of the sliding ring 401 can be changed by the compensation ring 402, thereby realizing the expansion of the sliding ring 401. This makes the device suitable for harvesting jujube trees of different sizes. At the same time, the stability of the device is ensured by the action of the damping spring 408 and the fixing column 412, and the vibration caused by the shaking mechanism 100 is reduced.

[0031] Working Principle: First, by adjusting the size of the slip ring 401, the device is positioned below the jujube tree, making it suitable for jujube trees of different sizes. At this point, it is fixed using the fixing column 412 to increase the stability of the device. Then, the sliding box 407 is adjusted so that the device is positioned under a specific area of ​​the jujube tree for targeted harvesting. Once the appropriate position is achieved, the limiting bolt 410 is tightened to fix the sliding box 407 to the outer wall of the slip ring 401. Simultaneously, under the action of the shock-absorbing spring 408, the sliding box 407 can slide on the slip rings 401 of different sizes, reducing vibration from the device. Finally, the fixing rod 209 and the threaded cylinder 203 are adjusted using the sliding cylinder 206 and the sliding block 210. The angle and position of the fixed rod 209 and the threaded cylinder 203 form a stable triangular structure. Simultaneously, the compensating spring 208 further reduces vibration. By starting the forward and reverse motor 202, the threaded cylinder 203 rotates, causing the threaded rod 214 to move up and down, thus positioning the branch-shaking mechanism 100 at the top of the jujube tree. At this time, by adjusting the forward and reverse speeds of the forward and reverse motor 202, the threaded rod 214 reciprocates up and down inside the threaded cylinder 203, with the downward amplitude greater than the upward amplitude. This allows the device to perform layered, point-like branch-shaking from top to bottom. Simultaneously, when the threaded rod 214 retracts into the threaded cylinder 203, the pressure-reducing plate 205, under the action of the pressure-reducing spring 204, prevents the threaded rod 214 from retracting too much. This causes damage to the device and reduces vibration during transportation. At this time, the electromagnet 115 is energized and engages with the iron plug 114. When the shaking mechanism 100 is above the jujube tree, the electromagnet 115 is de-energized, causing the iron plug 114 to disengage from the electromagnet 115. Under the action of the compression spring 110, the slider 101 moves upward, and the shaking plate 102 is located outside the device. At this time, under the action of the extension spring 103, the shaking plate 102 forms a V-shape, and the folding plate 104 opens to prevent impurities from entering the gap. At this time, the vibrator 106 performs targeted shaking on a specific area of ​​the jujube tree. Simultaneously, the vibration ring 105 increases the contact area. When the threaded rod 214 moves... During the reciprocating motion, the two ends of the shaking plate 102 will merge due to the resistance of the jujube tree, causing the rotating plate 107 to rotate. At this time, the top rod 108 will be pressed down, and the first toothed plate 111 will move downward, driving the gear 112 to rotate. Simultaneously, the gear 112 meshes with the second toothed plate 113, causing the second toothed plate 113 to drive the slider 101 to move downward, causing the shaking plate 102 to retract. Meanwhile, the threaded rod 214 reciprocates. Therefore, when the threaded rod 214 moves upward, the shaking plate 102 pops out again under the action of the compression spring 110, realizing layered point shaking. At the same time, in order to prevent damage to the jujube fruit, the adjusting plate 303 is first rotated on the inner top wall of the filter box 301 by rotating the adjusting cylinder 305.The adjustment hole 304 and the filter hole 302 are offset to adjust the size of the filter hole 302. The fastening nut 313 is used to fix the fastening sleeve 312 to the outer wall of the threaded cylinder 203, placing the filter box 301 at the bottom of the shaking branch mechanism 100. The jujubes falling from the shaking branch first land on the top of the filter box 301. At this time, the drive motor 315 moves the sliding plate 316, and the cleaning cylinder 317 slides on the upper surface of the filter box 301, tumbling the impurities and jujubes. This allows the jujubes to enter the filter box 301 through the filter hole 302, preventing the jujubes from clogging the filter hole 302. The recovery box 306 can further filter the impurities and jujubes to prevent waste. Simultaneously, the dispersing plate 309 distributes the jujubes entering the filter box 301 to both sides of the combing roller 310. The combing roller 310 then neatly feeds the jujubes to the discharge pipe 311, preventing the jujubes from being squeezed and broken.

[0032] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of the claims of this patent application.

Claims

1. An automatic harvesting device for jujube fruits in a top-to-bottom layered, point-like shaking branch manner, characterized in that, It includes a shaking mechanism (100), a lifting mechanism (200), a filtering mechanism (300), and a fixing mechanism (400). The shaking mechanism (100) is located at the top of the lifting mechanism (200), the filtering mechanism (300) is slidably mounted on the outer surface of the lifting mechanism (200), and the fixing mechanism (400) is located at the bottom of the lifting mechanism (200). The shaking mechanism (100) includes a slider (101), a shaking plate (102), a top extension spring (103), a folding plate (104), a vibration ring (105), an oscillator (106), a rotating plate (107), a top rod (108), a connecting shaft (109), a compression spring (110), a first toothed plate (111), a gear (112), a second toothed plate (113), an iron plug (114), an electromagnet (115), a first limiting block (116), and a cavity (117). The slider (101) has a through hole inside. The rocking plate (102) is rotatably connected inside the slider (101). There are two rocking plates (102). The two rocking plates (102) are installed opposite each other and located at both ends of the through hole. The two ends of the top extension spring (103) are fixedly connected to the bottom of the opposite side of the two rocking plates (102). The two ends of the folding plate (104) are fixedly connected to the top of the opposite side of the rocking plate (102). The vibration ring (105) is fixedly installed on the top of the other side of the rocking plate (102). The oscillator (106) is fixedly installed inside the rocking plate (102). The rotating plate (107) is rotatably connected to the middle of the opposite side of the rocking branch plate (102). There are two rotating plates (107), and the two rotating plates (107) are rotatably connected at opposite ends via a connecting shaft (109). One end of the top of the push rod (108) is also rotatably connected to the connecting shaft (109). The other end of the push rod (108) passes through the through hole and is located inside the cavity (117) and is fixedly connected to the first toothed plate (111). The first toothed plate (111) meshes with the gear (112), and the gear (112) is rotatably connected inside the cavity (117). The second toothed plate (113) One end is fixedly connected to the bottom of the slider (101), the second toothed plate (113) is meshed with the gear (112), the iron plug (114) is fixedly installed at the bottom of the top rod (108), the two ends of the compression spring (110) are fixedly connected to the bottom of the slider (101) and the top of the cavity (117) respectively, the bottom of the cavity (117) is fixedly installed with the electromagnet (115) that cooperates with the iron plug (114), the first limiting block (116) is fixedly connected to the outer wall of the first toothed plate (111), and the first limiting block (116) can contact the bottom of the slider (101).

2. The automatic harvesting device for jujube fruits with top-down layered point-shaped branch shaking as described in claim 1, characterized in that, The lifting mechanism (200) includes a transmission box (201), a forward and reverse motor (202), a threaded cylinder (203), a pressure-reducing spring (204), a pressure-reducing plate (205), a slide cylinder (206), an adjusting bolt (207), a compensating spring (208), a fixing rod (209), a sliding block (210), a fixing bolt (211), a slide rod (212), a shock-absorbing box (213), and a threaded rod (214). The forward and reverse motor (202) is located inside the transmission box (201). The forward and reverse rotation of the forward and reverse motor (202) and the rotation speed of the forward and reverse rotation can be controlled autonomously. The output end of the forward and reverse motor (202) is driven connected to one end of the threaded cylinder (203). One end of the pressure relief spring (204) is fixedly connected to the inside of the threaded cylinder (203). The other end of the pressure relief spring (204) is fixedly connected to one side of the pressure relief plate (205). The pressure relief plate (205) is located inside the threaded cylinder (203). The slide cylinder (206) is slidably connected to the outer surface of the threaded cylinder (203). The adjusting bolt (207) passes through the inside of the slide cylinder (206) and can abut against the threaded cylinder (203). One end of the compensation spring (208) is fixedly connected to one end inside the slide cylinder (206). The other end of the compensation spring (208) abuts against the outer wall of the threaded cylinder (203). One end of the fixed rod (209) is rotatably connected to the outer wall of the slide cylinder (206), and the other end of the fixed rod (209) is rotatably connected to the sliding block (210). The sliding block (210) is slidably connected to the outer surface of the slide rod (212). The fixing bolt (211) passes through the interior of the sliding block (210) and can abut against the slide rod (212). The slide rod (212) is installed on the top of the shock absorber box (213). The shock absorber box (213) is fixedly installed on both sides of the transmission box (201). The threaded rod (214) is rotatably connected to the interior of the threaded cylinder (203). The cavity (117) is opened inside the threaded cylinder (203). The rocking mechanism (100) is located inside the threaded rod (214).

3. The automatic harvesting device for jujube fruits with top-down layered point-shaped branch shaking as described in claim 2, characterized in that, The filtration mechanism (300) includes a filter box (301), a filter hole (302), an adjusting plate (303), an adjusting hole (304), an adjusting cylinder (305), a recovery box (306), a first recovery hole (307), a second recovery hole (308), a dispersing plate (309), a combing roller (310), a discharge pipe (311), a fastening sleeve (312), a fastening nut (313), a lead screw (314), a drive motor (315), a sliding plate (316), and a cleaning cylinder (317). The filter box (301) is a closed square shape. The filter hole (302) is located at the top of the filter box (301). The adjusting plate (303) is located inside the filter box (301) and contacts the inner top wall of the filter box (301). The adjusting hole (304) is located on the outer surface of the adjusting plate (303), and the diameter of the adjusting hole (304) is larger than the diameter of the filter hole (302). The adjusting cylinder (305) passes through the top of the filter box (301) and is fixedly connected to the adjusting plate (303). The cylinder (305) is slidably connected to the outer wall of the threaded cylinder (203), the recycling box (306) is located on the outer wall of the filter box (301), and the top of the recycling box (306) is at the same height as the top of the filter box (301). The first recycling hole (307) is located on the top of the recycling box (306), and the second recycling hole (308) is located on the outer wall of the recycling box (306) that contacts the filter box (301). The second recycling hole (308) allows fluid to flow between the recycling box (306) and the filter box (301). The dispersing plate (309) is located at the bottom of the adjusting hole (304). The combing roller (310) is rotatably connected inside the filter box (301) and located at the bottom of the second recovery hole (308) and the dispersing plate (309). There are two or more combing rollers (310). Two or more combing rollers (310) are arranged in pairs. The two combing rollers (310) in each pair are installed opposite each other. The discharge pipe (311) is located at the bottom of the filter box (301), and the output end of the discharge pipe (311) is directly opposite the bottom of the relative gap between the two combing rollers (310) in each pair. The fastening sleeve (312) is located at the bottom of the adjusting cylinder (305) and is slidably connected to the outer wall of the threaded cylinder (203). The fastening nut (313) is rotatably connected to the outer surface of the fastening sleeve (312). The lead screw (314) is located on the outer surface of the filter box (301) and the recycling box (306). One end of the lead screw (314) is fixedly connected to the output of the drive motor (315). The slide plate (316) is slidably connected to the outer wall of the lead screw (314). The cleaning cylinder (317) is rotatably connected to the outer wall of the slide plate (316) and the cleaning cylinder (317) is in contact with the upper surface of the filter box (301).

4. The automatic harvesting device for jujube fruits with top-down layered point-shaped branch shaking as described in claim 3, characterized in that, The fixing mechanism (400) includes a slip ring (401), a compensation ring (402), a second limiting block (403), a stop block (404), a clamping plate (405), a buckle (406), a sliding box (407), a shock-absorbing spring (408), a fixing plate (409), a limiting bolt (410), a fixing ring (411), a fixing column (412), and a fixing disc (413). The slip ring (401) is composed of four arc plates, with each pair of arc plates forming a group. The compensation ring (402) is slidably connected to one end of each group of two arc plates in contact. The compensation ring (402) is arc-shaped, and there are two compensation rings (402). The second limiting block (403) is fixedly installed on both sides of the two ends of the compensation ring (402). The stop block (404) is located on both sides inside the one end of each pair of arc plates in contact. The other end of one group of arc plates is fixedly connected to the locking plate (405), and the other group of arc plates is fixedly connected to the buckle (406). The locking plate (405) and the buckle (406) are engaged. The bottom of the sliding box (407) is slidably connected to the outer wall of the slip ring (401), the top of the sliding box (407) is fixedly connected to the bottom of the transmission box (201), one end of the shock-absorbing spring (408) is fixedly connected to the inner wall of the sliding box (407), and the other end of the shock-absorbing spring (408) is fixedly connected to the fixing plate (409). The fixing plate (409) is located inside the sliding box (407), and the limiting bolt (410) passes through the sliding box (407) and is located inside the shock-absorbing spring (408). The limiting bolt (410) can abut against the fixing plate (409). The outer wall of the fixing ring (411) is fixedly connected to the arc plate. The fixing post (412) passes through the interior of the fixing ring (411). There are two or more fixing posts (412). The bottom of the fixing post (412) is conical. The fixing plate (413) is slidably connected to the outer wall of one end of the fixing post (412) that passes through the interior of the fixing ring (411).

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