Compound elevator with cleaning function for seed processing
By integrating cleaning functions into the double-lift elevator, the problems of low transportation efficiency and equipment damage of existing elevators have been solved, achieving high efficiency, continuity and purity in seed transportation, and reducing transportation losses and equipment maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 甘肃博农种业有限责任公司
- Filing Date
- 2026-04-16
- Publication Date
- 2026-06-05
AI Technical Summary
Existing seed elevators only have a single transport function, which causes impurities mixed in with the seeds to enter the lifting mechanism along with them. This requires additional cleaning equipment to process them, increasing transportation time and costs. Furthermore, during the lifting process, seeds are prone to falling out, getting stuck in parts, and causing equipment damage and breakage.
Design a double-lifting machine with cleaning function, integrating an inclined pre-lifting section and a vertical main lifting section, combined with first and second cleaning mechanisms and an impurity collection system, to realize integrated operation of seed cleaning and lifting. Adopt a flexible double-lifting structure and protective measures such as anti-overflow side guards and elastic scrapers to ensure stable seed transport.
It achieves efficient, continuous and seamless seed transportation, reduces transportation losses and equipment failure rates, improves overall transportation efficiency and seed purity, and reduces additional cleaning steps and equipment footprint.
Smart Images
Figure CN122141955A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of seed processing technology, specifically to a double-lift machine for seed processing with a cleaning function. Background Technology
[0002] In the seed processing industry, seed transportation is one of the core processes. Elevators, as the core equipment for seed transportation, are mainly used to transfer seeds from a lower to a higher level, connecting different processes such as cleaning, grading, coating, drying, packaging, and storage. They are the "core hub" of material flow in the seed processing production line. Currently, existing seed transportation elevators only have a single transportation function. Impurities mixed in with the seeds (such as heavy impurities like stones and metal particles, and light impurities like shriveled seeds, straw, and dust) enter the lifting mechanism along with the seeds and need to be removed separately by cleaning equipment after transportation.
[0003] In existing technologies, the elevator and cleaning equipment operate independently. The seed transportation process involves seed feeding, elevator transportation, separate cleaning, and secondary transportation. The elevator only handles the transportation task, while the cleaning equipment is located separately at the front or back of the transportation process, with no coordination between the two. Existing cleaning equipment mainly includes gravity separators, air separators, and vibrating screens, used to separate light and heavy impurities from seeds. However, these require separate drive devices and transportation connection structures, resulting in a decentralized layout with the elevator mechanism.
[0004] After being transported by the elevator, the seeds need to be transferred to the cleaning equipment via a transfer device. After cleaning, they are then transferred to the subsequent workstations. Multiple transfers not only increase the transportation time but also increase the seed damage rate, as well as the labor and equipment investment costs.
[0005] To address the shortcomings of existing seed elevators that can only transport seeds in a single manner, especially the problems of seeds falling off during the lifting process, getting stuck in parts and causing equipment damage and seed breakage, a compound elevator is designed. This design achieves efficient, stable and continuous seed transportation, while solving the problems of low transportation efficiency, rapid component wear and tear and cumbersome processes of existing elevators, thereby improving the overall efficiency of seed transportation. Summary of the Invention
[0006] The purpose of this invention is to provide a double-lift machine for seed processing with a cleaning function, so as to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, the present invention provides the following technical solution: a compound elevator for seed processing with cleaning function, comprising a frame with bottom wheels, wherein a feed hopper, a compound elevator mechanism, a first cleaning mechanism, a second cleaning mechanism, an impurity collection system, and a drive speed regulation system are mounted on the frame; the compound elevator mechanism includes an inclined pre-lifting section and a vertical main elevator section, used to achieve efficient and stable seed transportation; a transition mechanism connects the inclined pre-lifting section and the vertical main elevator section; The inclined pre-lifting section includes a pre-lifting belt, on which elastic scrapers are fixedly connected at equal intervals and evenly, and anti-overflow baffles are respectively sleeved on both sides of the pre-lifting belt; The vertical main lifting section includes a main lifting belt, on which deep buckets are fixedly connected at equal intervals. The main lifting belt is fixedly connected to the open side of the back wall of the bucket, and an elastic bushing is fixedly connected between the remaining part of the back wall of the bucket and the main lifting belt. A material return assembly is installed below the transition mechanism to solve the problems of seeds falling off and getting stuck in parts during the lifting process, and to enhance the cooperation effect of the compound lifting mechanism. The first cleaning mechanism is located between the feed hopper and the inclined pre-lifting section of the compound lifting mechanism, and is used to screen out impurities that are heavier than the seeds; the second cleaning mechanism is located at the discharge end of the vertical main lifting section of the compound lifting mechanism, and is used to screen out impurities that are lighter than the seeds. The impurity collection system is connected to the first cleaning mechanism and the second cleaning mechanism respectively, and is used to collect various impurities; The drive speed regulation system provides core power for the compound lifting mechanism and adjusts the transport speed of the inclined pre-lifting section and the vertical main lifting section to achieve coordinated operation between the inclined pre-lifting section and the vertical main lifting section.
[0008] As a preferred technical solution of the present invention, the inclined pre-lifting section and the vertical main lifting section are jointly fitted with a housing mechanism for fixing the frame. The housing mechanism includes a shell, with an inlet for docking with the first cleaning mechanism through the middle and an outlet for docking with the second cleaning mechanism through the upper part of the shell. As a preferred embodiment of the present invention, the material receiving and return assembly includes a bottom block that fixes the bottom of the filling housing; The upper surface of the bottom block corresponding to the feed inlet is provided with a first groove adapted to the inclined pre-lifting section, and the upper surface of the bottom block corresponding to the discharge outlet is provided with a second groove adapted to the vertical main lifting section. A return belt is embedded in the bottom of the base block, and the two sides of the return belt are correspondingly embedded in the housing. The rollers of the return belt penetrate the housing and are fixedly sleeved with strip pulleys. A return groove is provided on the upper side of the return belt and is opened on the base block. The return groove connects the first pit and the second pit. The upper surface of the middle part of the base block is provided with an arc-shaped chamfer to adapt to the transition mechanism.
[0009] As a preferred embodiment of the present invention, pre-lifting rollers are respectively sleeved on both sides of the pre-lifting belt, and a first speed regulating motor controlled by a drive speed regulating system is installed on one of the pre-lifting rollers. Two support rollers are sleeved on the inner side of the pre-lifting belt; The upper end of the pre-lift belt is attached with a first pressure roller and a second pressure roller for adjusting the shape of the pre-lift belt; The pre-lift belt is inserted into the housing on both sides, the pre-lift roller, support roller, first pressure roller and second pressure roller are rotatably inserted into the housing, the first speed regulating motor is fixed to the housing, and the anti-overflow guard is attached to the housing.
[0010] As a preferred embodiment of the present invention, main lifting rollers are respectively sleeved on both sides of the main lifting belt, and a second speed regulating motor controlled by a drive speed regulating system is installed on one of the main lifting rollers. The main lifting belt is inserted into the housing on both sides, the main lifting roller is inserted into the housing, the second speed regulating motor is fixed to the housing, and the bucket is attached to the housing; The main lifting roller and the strip pulley are together fitted with a figure-eight shaped strip.
[0011] As a preferred embodiment of the present invention, the transition mechanism includes an S-shaped arc plate, with plate stops fixedly connected to both sides of the arc plate, and a plate shaft fixedly connected to the plate stops; The plate shaft is inserted into the housing; The arc-shaped plate fits the arc-shaped chamfer of the bottom block. The head side of the arc-shaped plate is concave and fits the pre-lifting belt. The tail side of the arc-shaped plate is convex and corresponds to the bucket.
[0012] As a preferred embodiment of the present invention, the impurity collection system includes an impurity cylinder and an impurity outlet pipe fixed to a frame.
[0013] As a preferred technical solution of the present invention, the first cleaning mechanism includes a first cleaning chamber, the upper wall of the first cleaning chamber is connected to the feed hopper, a first outlet hole for the feed inlet is opened through the middle of one side wall of the first cleaning chamber, an inclined screen plate is fixedly connected inside the first cleaning chamber at the first outlet, and an inclined weight plate is fixedly connected inside the first cleaning chamber at the first outlet. An L-shaped impurity bin is fixedly connected to the periphery of the first cleaning bin, and the outlet of the impurity bin corresponds to the impurity outlet pipe; a slope is fixedly connected to the bottom of the impurity bin towards its outlet. Two second outlets, which connect to the impurity chamber, are provided through the other side wall of the first cleaning chamber. The upper second outlet is connected to the inclined screen plate, and the lower second outlet is connected to the inclined weight plate. A valve plate is provided in the impurity chamber corresponding to the second outlet. The valve plates are connected by connecting columns, and a controller for fixing the impurity chamber is installed on the upper side of the valve plate.
[0014] As a preferred embodiment of the present invention, the second cleaning mechanism includes a second cleaning chamber connected to the discharge port, the bottom of the second cleaning chamber being conical and corresponding to a seed outlet pipe fixed to the frame; A blower is installed on the top of the second cleaning chamber. The inlet pipe of the blower is fixedly connected to the second cleaning chamber, and the outlet pipe of the blower is fixedly connected to an impurity pipe. The lower part of the impurity pipe is connected to an impurity cylinder.
[0015] Compared with the prior art, the beneficial effects of the present invention are: A double-lifting machine for seed processing with cleaning function integrates auxiliary cleaning function with double-lifting mechanism to realize integrated operation of seed cleaning and lifting transportation. It eliminates the cumbersome links of separate cleaning and secondary transfer after transportation by traditional elevator, and greatly shortens the seed transportation process.
[0016] A double-stage elevator for seed processing with cleaning function is designed with speed linkage adjustment between the inclined pre-lifting section and the vertical main lifting section to achieve orderly connection of cleaning, feeding and lifting, ensuring smooth seed transportation throughout the process without dropping or jamming. This completely solves the problems of cumbersome transportation process and easy jamming of existing elevators, and significantly improves the overall transportation efficiency.
[0017] A double-lifting machine for seed processing with cleaning function avoids component wear, material blockage and other failures caused by heavy impurities entering the double-lifting mechanism. The pre-lifting belt of the inclined pre-lifting section is fitted with anti-overflow guards on both sides to prevent seeds from falling from the side of the pre-lifting belt and being squeezed in the gaps, thus solving the problems of seeds falling and getting stuck in parts and reducing seed transportation losses.
[0018] A double-type elevator for seed processing with a cleaning function can use a return belt to return seeds to the first pit. In addition, the elastic bushing of the vertical main lifting section can prevent seeds from getting stuck in the connection gap between the bucket and the main lifting belt, effectively avoiding equipment jamming and damage, reducing the elevator failure rate, extending the service life of lifting components, ensuring the continuity of seed transportation, and reducing equipment maintenance costs.
[0019] A double-stage elevator for seed processing with a cleaning function has a second cleaning mechanism located at the discharge end of the vertical main lifting section. This mechanism can quickly screen out shriveled seeds, straw, and other light impurities after the seeds have been lifted and transported, ensuring the purity of the seeds transported to subsequent drying, coating, and packaging stations. This avoids impurities affecting the normal operation of subsequent processes, eliminating the need for additional sorting steps and indirectly improving overall processing and transportation efficiency. It also achieves seamless connection between lifting and transportation and subsequent processes.
[0020] A double-lifting machine for seed processing with cleaning function. The double-lifting mechanism adopts a flexible double-lifting structure with an inclined pre-lifting section and a vertical main lifting section. The inclined pre-lifting section is slowly and smoothly conveyed by an elastic scraper. The vertical main lifting section adopts a deep bucket-shaped bucket. With the flexible design of the anti-drop and anti-jamming structure, the collision, compression and jamming of seeds are reduced throughout the process, and the damage rate of seeds during lifting and transportation is reduced. This not only effectively ensures the quality of seeds, but also avoids the accumulation of damaged seeds from affecting the smoothness of lifting and transportation.
[0021] A double-stage elevator for seed processing with a cleaning function guides seeds into a bucket via an arc-shaped plate. As the elastic scraper moves further, it gradually approaches the arc-shaped plate. Simultaneously, the bucket is lifted by the main lifting belt, and its casting approaches the tail side of the arc-shaped plate. The arc-shaped plate rotates around its shaft, thereby returning any unpoured seeds to the inclined pre-lifting section for circulation. This prevents a large accumulation of seeds in the vertical main lifting section and further improves the smoothness of seed conveying. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the drive speed control system of the present invention; Figure 3 This is a schematic diagram of the first cleaning mechanism of the present invention; Figure 4 This is a front view of the compound lifting mechanism of the present invention; Figure 5 This is a schematic diagram of the rear of the compound lifting mechanism of the present invention; Figure 6 This is a schematic diagram of the internal structure of the compound lifting mechanism of the present invention; Figure 7 This is a schematic diagram of the inclined pre-lifting section of the present invention; Figure 8 This is a schematic diagram of the anti-overflow guard connection of the present invention; Figure 9 This is a schematic diagram of the pre-lifting belt connection of the present invention; Figure 10 This is a schematic diagram of the material receiving and return assembly of the present invention; Figure 11 This is a schematic diagram of the outer shell mechanism of the present invention; Figure 12 This is a schematic diagram of the transition mechanism of the present invention; Figure 13 This is a schematic diagram of the vertical main lifting section of the present invention; Figure 14 This is a schematic diagram of the elastic bushing of the present invention; Figure 15 This is a schematic diagram of the internal cross-section of the compound lifting mechanism of the present invention.
[0023] In the diagram: 1. Frame; 2. Feed hopper; 3. First cleaning mechanism; 301. First cleaning chamber; 302. First outlet; 303. Inclined screen plate; 304. Inclined weight plate; 305. Impurity chamber; 306. Slope; 307. Second outlet; 308. Valve plate; 309. Connecting column; 310. Controller; 4. Housing mechanism; 401. Housing; 402. Feed inlet; 403. Discharge outlet; 404. Bottom block; 405. First pit; 406. Second pit; 407. Return belt; 408. Strip pulley; 409. Strip; 410. Return trough; 5. Impurity outlet pipe; 6. Second... Cleaning mechanism; 601, Second cleaning chamber; 602, Fan; 603, Impurity pipe; 604, Impurity cylinder; 605, Seed outlet pipe; 7, Drive speed regulation system; 801, Pre-lifting belt; 802, Pre-lifting roller; 803, First speed regulating motor; 804, Elastic scraper; 805, Anti-overflow side guard; 806, Support roller; 807, First pressure roller; 808, Second pressure roller; 809, Main lifting belt; 810, Main lifting roller; 811, Second speed regulating motor; 812, Bucket; 813, Elastic bushing; 9, Transition mechanism; 901, Arc plate; 902, Plate stop; 903, Plate shaft. Detailed Implementation
[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0025] Example: Please refer to Figure 1-15 A double-lifting machine for seed processing with cleaning function includes a frame 1 with bottom wheels. The frame 1 is equipped with a feed hopper 2, a double-lifting mechanism, a first cleaning mechanism 3, a second cleaning mechanism 6, an impurity collection system, and a drive speed regulation system 7. The double-lifting mechanism includes an inclined pre-lifting section and a vertical main lifting section for efficient and stable seed transportation. A transition mechanism 9 connects the inclined pre-lifting section and the vertical main lifting section. The inclined pre-lifting section includes a pre-lifting belt 801, on which elastic scrapers 804 are fixedly connected at equal intervals and evenly, and anti-overflow baffles 805 are respectively sleeved on both sides of the pre-lifting belt 801. The vertical main lifting section includes a main lifting belt 809, on which deep bucket-shaped hoppers 812 are fixedly connected at equal intervals. The main lifting belt 809 is fixedly connected to the open side of the back wall of the hopper 812, and an elastic bushing 813 is fixedly connected between the remaining part of the back wall of the hopper 812 and the main lifting belt 809. A material return assembly is installed below the transition mechanism 9 to solve the problem of seeds falling off and getting stuck in parts during the lifting process, and to enhance the coordination effect of the duplex lifting mechanism. The first cleaning mechanism 3 is located between the feed hopper 2 and the inclined pre-lifting section of the compound lifting mechanism, and is used to screen out impurities that are heavier than the seeds; the second cleaning mechanism 6 is located at the discharge end of the vertical main lifting section of the compound lifting mechanism, and is used to screen out impurities that are lighter than the seeds; the first cleaning mechanism 3 and the second cleaning mechanism 6 are both linked and cooperate with the compound lifting mechanism, and do not affect the seed transportation efficiency. The impurity collection system is connected to the first cleaning mechanism 3 and the second cleaning mechanism 6, and is used to collect various impurities. The drive speed regulation system 7 provides the core power for the compound lifting mechanism and adjusts the transport speed of the inclined pre-lifting section and the vertical main lifting section to achieve coordinated operation between the inclined pre-lifting section and the vertical main lifting section.
[0026] The inclined pre-lifting section and the vertical main lifting section are jointly fitted with the outer shell mechanism 4 of the fixed frame 1. The outer shell mechanism 4 includes a shell 401, with an inlet 402 through the middle of the shell 401 to connect with the first cleaning mechanism 3 and an outlet 403 through the upper part to connect with the second cleaning mechanism 6. The material return assembly includes a bottom block 404 that fixes the bottom of the filling housing 401; The bottom block 404 has a first groove 405 adapted to the inclined pre-lifting section on the upper surface corresponding to the feed inlet 402, and the bottom block 404 has a second groove 406 adapted to the vertical main lifting section on the upper surface corresponding to the discharge outlet 403. A return belt 407 is embedded in the bottom of the base block 404. The two sides of the return belt 407 are correspondingly embedded in the housing 401. The rollers of the return belt 407 penetrate the housing 401 and are fixedly sleeved with a strip pulley 408. A return groove 410 is provided on the upper side of the return belt 407 and is opened on the base block 404. The return groove 410 connects the first pit 405 and the second pit 406. The upper surface of the middle part of the bottom block 404 is provided with an arc-shaped chamfer to accommodate the transition mechanism 9.
[0027] Pre-lifting rollers 802 are respectively sleeved on both sides of the pre-lifting belt 801, and a first speed regulating motor 803 controlled by the drive speed regulating system 7 is installed on one pre-lifting roller 802; Two support rollers 806 are sleeved on the inner side of the pre-lifting belt 801; A first pressure roller 807 and a second pressure roller 808 for adjusting the shape of the pre-lift belt 801 are attached to the upper side of the end. The pre-lift belt 801 is inserted into the housing 401 on both sides. The pre-lift roller 802, support roller 806, first pressure roller 807 and second pressure roller 808 are all rotatably inserted into the housing 401. The first speed regulating motor 803 is fixed to the housing 401. The anti-overflow guard 805 is attached to the housing 401.
[0028] Main lifting rollers 810 are respectively sleeved on both sides of the main lifting belt 809, and a second speed regulating motor 811 controlled by the drive speed regulating system 7 is installed on one of the main lifting rollers 810. The main lifting belt 809 is inserted into the housing 401 on both sides, the main lifting roller 810 is rotatably inserted into the housing 401, the second speed regulating motor 811 is fixed to the housing 401, and the bucket 812 is attached to the housing 401. A main lifting roller 810 and a strip pulley 408 are together fitted with a figure-eight strip 409.
[0029] The transition mechanism 9 includes an S-shaped arc plate 901, with plate stops 902 fixedly connected to both sides of the arc plate 901, and a plate shaft 903 fixedly connected to the plate stops 902. Plate shaft 903, shaft insertion housing 401; The curved plate 901 fits the curved chamfer of the bottom block 404. The head side of the curved plate 901 is concave and fits the pre-lifting belt 801. The tail side of the curved plate 901 is convex and corresponds to the bucket 812.
[0030] The impurity collection system includes an impurity cylinder 604 and an impurity outlet pipe 5 fixed to the frame 1.
[0031] The first cleaning mechanism 3 includes a first cleaning chamber 301. The upper wall of the first cleaning chamber 301 is connected to the feed hopper 2. A first outlet 302 for the feed inlet 402 is opened through the middle of one side wall of the first cleaning chamber 301. An inclined screen plate 303 is fixedly connected inside the first cleaning chamber 301 and located on the first outlet 302. An inclined weight plate 304 is fixedly connected inside the first cleaning chamber 301 and located below the first outlet 302. Both the inclined screen plate 303 and the inclined weight plate 304 are inclined downward from the first outlet 302. The first cleaning chamber 301 is fixedly connected to an L-shaped impurity chamber 305, and the outlet of the impurity chamber 305 corresponds to the impurity outlet pipe 5; the bottom of the impurity chamber 305 is fixedly connected to a ramp 306 facing its outlet. Two second outlets 307, which connect to the impurity chambers 305, are opened through the other side wall of the first cleaning chamber 301. The upper second outlet 307 is connected to the inclined screen plate 303, and the lower second outlet 307 is connected to the inclined weight plate 304. A valve plate 308 is provided in the impurity bin 305 corresponding to the second outlet 307. The valve plates 308 are connected by a connecting post 309. A controller 310 fixed to the impurity bin 305 is installed on the upper side of the valve plate 308. Seeds entering the first cleaning chamber 301 are first screened by the inclined screen plate 303. Large particles of impurities accumulate below the inclined screen plate 303. Seeds and heavy impurities enter the inclined weighing plate 304. The vibration generated during the operation of the equipment causes the heavy impurities to gradually accumulate below the inclined weighing plate 304, while the seeds gradually accumulate towards the first outlet 302. Finally, they enter the compound lifting mechanism. The controller 310 periodically opens the valve plate 308 to transport the large and heavy impurities to the impurity chamber 305. They are further guided by the ramp 306 and finally discharged through the impurity outlet pipe 5.
[0032] The second cleaning mechanism 6 includes a second cleaning chamber 601 connected to the discharge port 403. The bottom of the second cleaning chamber 601 is conical and has a seed outlet pipe 605 fixed to the frame 1. A blower 602 is installed on the top of the second cleaning chamber 601. The air inlet pipe of the blower 602 is fixedly connected to the second cleaning chamber 601, and the air outlet pipe of the blower 602 is fixedly connected to the impurity pipe 603. The lower part of the impurity pipe 603 is connected to the impurity cylinder 604.
[0033] The working principle of this invention is as follows: By integrating the auxiliary cleaning function with the double-lifting mechanism, seed cleaning and lifting transportation are integrated into a single operation, eliminating the cumbersome steps of separate cleaning and secondary transfer after traditional elevator transportation, significantly shortening the seed transportation process. Simultaneously, the inclined pre-lifting section and the vertical main lifting section employ a speed-linked adjustment design. The conveying speed of the inclined pre-lifting section can be independently adjusted via the first speed-regulating motor 803, precisely matching the cleaning speed and output of the first cleaning mechanism 3, achieving a seamless connection between cleaning, feeding, and lifting. The vertical main lifting section can be independently adjusted via the second speed-regulating motor 811, precisely matching the output of the inclined pre-lifting section. Combined with the orderly conveying of the transition mechanism 9, this ensures smooth seed transportation throughout the entire process, without dropping or jamming, completely solving the problems of cumbersome and jam-prone transportation processes in existing elevators, and significantly improving overall transportation efficiency.
[0034] On the one hand, the first cleaning mechanism 3 adopts a combination of gravity settling and coarse screening to remove heavy impurities such as stones and metal particles before the seeds enter the compound lifting mechanism, thus avoiding component wear and blockage caused by heavy impurities entering the compound lifting mechanism. On the other hand, the pre-lifting belt 801 of the inclined pre-lifting section is fitted with anti-overflow baffles 805 on both sides. The baffles are beveled and fit against the housing 401. With the help of the elastic scraper 804 rotating counterclockwise under the drive of the pre-lifting belt 801, the seeds that have fallen to the corner can be re-transported, preventing the seeds from falling from the side of the pre-lifting belt 801 and being squeezed in the gaps. This solves the problem of seeds falling and getting stuck in parts, and reduces seed transportation losses.
[0035] A material return assembly is installed below the transition mechanism 9. The bottom block 404 has a first groove 405 on the upper surface of the feed inlet 402. With the elastic scraper 804 of the inclined pre-lifting section and the anti-overflow guard 805, it can re-transport accidentally dropped seeds. The bottom block 404 has a second groove 406 on the upper surface of the discharge outlet 403 that is adapted to the vertical main lifting section and connects to the return groove 410. Seeds can be returned to the first groove 405 by the return belt 407. In addition, the elastic bushing 813 of the vertical main lifting section can prevent seeds from getting stuck in the connection gap between the bucket 812 and the main lifting belt 809, effectively preventing equipment jamming and damage, reducing the failure rate of the elevator, extending the service life of the lifting components, ensuring the continuity of seed transportation, and reducing equipment maintenance costs.
[0036] The second cleaning mechanism 6 is located at the discharge end of the vertical main lifting section. It can quickly screen out shriveled seeds, straw and other light impurities after the seeds have been lifted and transported, ensuring the purity of the seeds transported to subsequent drying, coating and packaging stations. This avoids impurities affecting the normal operation of subsequent processes, eliminating the need for additional sorting steps and indirectly improving the overall processing and transportation efficiency, achieving seamless connection between lifting and transportation and subsequent processes.
[0037] The cleaning structure and the double lifting mechanism are integrated into one unit, resulting in a compact overall structure that eliminates the need for separate cleaning equipment and lifting machine transfer space, thus significantly reducing the equipment's footprint.
[0038] The double lifting mechanism adopts a flexible double lifting structure with an inclined pre-lifting section and a vertical main lifting section. The inclined pre-lifting section is slowly and smoothly conveyed by an elastic scraper 804, while the vertical main lifting section adopts a deep bucket 812. With the flexible design of the anti-fall and anti-jamming structure, the collision, squeezing and jamming of seeds are reduced throughout the process, and the damage rate of seeds during lifting and transportation is reduced. This not only effectively ensures the quality of seeds, but also avoids the accumulation of damaged seeds from affecting the smoothness of lifting and transportation.
[0039] The inclined pre-lifting section and the vertical main lifting section are connected by the transition mechanism 9. The elastic scraper 804, along with the pre-lifting belt 801 and the anti-overflow baffle 805, transports the seeds to the head side of the arc plate 901. The seeds pour down under the action of gravity and are guided into the bucket 812 by the arc plate 901. As the elastic scraper 804 continues to operate, it gradually approaches the arc plate 901. At the same time, the bucket 812 is lifted by the main lifting belt 809. Its casting approaches the tail side of the arc plate 901 and rotates the arc plate 901 around the plate shaft 903. This causes the unpoured seeds to flow back to the inclined pre-lifting section for circulation, avoiding a large accumulation of seeds in the vertical main lifting section and further improving the smoothness of seed transportation.
[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A compound elevator with cleaning function for seed processing, comprising a frame (1) with a bottom wheel, a feeding hopper (2), a compound elevator mechanism, a first cleaning mechanism (3), a second cleaning mechanism (6), an impurity collection system and a driving and speed regulating system (7) mounted on the frame (1); characterized in that: The compound lifting mechanism includes an inclined pre-lifting section and a vertical main lifting section, which are used to achieve efficient and stable seed transportation; a transition mechanism (9) connects the inclined pre-lifting section and the vertical main lifting section. The inclined pre-lifting section includes a pre-lifting belt (801), on which elastic scrapers (804) are fixedly connected at equal intervals and evenly, and anti-overflow baffles (805) are respectively sleeved on both sides of the pre-lifting belt (801). The vertical main lifting section includes a main lifting belt (809), on which deep bucket-shaped hoppers (812) are fixedly connected at equal intervals. The main lifting belt (809) is fixedly connected to the open side of the back wall of the hopper (812), and an elastic bushing (813) is fixedly connected between the remaining part of the back wall of the hopper (812) and the main lifting belt (809). The material receiving and return assembly is provided below the transition mechanism (9) to solve the problem of seeds falling off and getting stuck in parts during the lifting process, and to enhance the cooperation effect of the compound lifting mechanism; The first cleaning mechanism (3) is set between the feed hopper (2) and the inclined pre-lifting section of the compound lifting mechanism, and is used to screen out impurities with a weight greater than that of the seeds; the second cleaning mechanism (6) is set at the discharge end of the vertical main lifting section of the compound lifting mechanism, and is used to screen out impurities with a weight less than that of the seeds. The impurity collection system is connected to the first cleaning mechanism (3) and the second cleaning mechanism (6) respectively, and is used to collect various impurities; The drive speed regulation system (7) provides core power for the compound lifting mechanism and adjusts the transport speed of the inclined pre-lifting section and the vertical main lifting section to achieve coordinated operation between the inclined pre-lifting section and the vertical main lifting section.
2. The double-stage elevator for seed processing with cleaning function according to claim 1, characterized in that: The inclined pre-lifting section and the vertical main lifting section are jointly fitted with a shell mechanism (4) for fixing the frame (1). The shell mechanism (4) includes a shell (401), with an inlet (402) for docking with the first cleaning mechanism (3) through the middle of the shell (401) and an outlet (403) for docking with the second cleaning mechanism (6) through the upper part.
3. A double-lift machine for seed processing with cleaning function according to claim 2, characterized in that: The material receiving and return assembly includes a bottom block (404) that fixes the bottom of the filling housing (401). The bottom block (404) has a first groove (405) adapted to the inclined pre-lifting section on the upper surface of the feed inlet (402), and the bottom block (404) has a second groove (406) adapted to the vertical main lifting section on the upper surface of the discharge outlet (403). The bottom of the base block (404) is fitted with a return belt (407), and the two sides of the return belt (407) are correspondingly inserted into the housing (401). The rollers of the return belt (407) penetrate the housing (401) and are fixedly sleeved with pulleys (408). A return groove (410) is provided on the upper side of the return belt (407) on the base block (404), and the return groove (410) connects the first pit (405) and the second pit (406). The upper surface of the middle part of the bottom block (404) is provided with an arc-shaped chamfer for adapting the transition mechanism (9).
4. A double-lift machine for seed processing with cleaning function according to claim 3, characterized in that: The pre-lifting belt (801) is fitted with pre-lifting rollers (802) on both sides respectively, and one of the pre-lifting rollers (802) is equipped with a first speed regulating motor (803) controlled by the drive speed regulating system (7). Two support rollers (806) are sleeved on the inner side of the pre-lifting belt (801). The upper end of the pre-lift belt (801) is attached with a first pressure roller (807) and a second pressure roller (808) for adjusting the shape of the pre-lift belt (801). The pre-lift belt (801) is inserted into the housing (401) on both sides. The pre-lift roller (802), support roller (806), first pressure roller (807) and second pressure roller (808) are all rotatably inserted into the housing (401). The first speed regulating motor (803) is fixed to the housing (401). The anti-overflow guard (805) is attached to the housing (401).
5. A double-lift machine for seed processing with cleaning function according to claim 4, characterized in that: The main lifting belt (809) is fitted with main lifting rollers (810) on both sides respectively, and one of the main lifting rollers (810) is equipped with a second speed regulating motor (811) controlled by the drive speed regulating system (7). The main lifting belt (809) is inserted into the housing (401) on both sides, the main lifting roller (810) rotates and inserts into the housing (401), the second speed regulating motor (811) is fixed to the housing (401), and the bucket (812) fits into the housing (401). One of the main lifting rollers (810) and the strip pulley (408) is fitted together with a figure-eight strip (409).
6. A double-lift machine for seed processing with cleaning function according to claim 5, characterized in that: The transition mechanism (9) includes an S-shaped arc plate (901), with plate stops (902) fixedly connected to both sides of the arc plate (901), and a plate shaft (903) fixedly connected to the plate stops (902). The plate shaft (903) is inserted into the housing (401). The arc plate (901) fits the arc chamfer of the bottom block (404), the head side of the arc plate (901) is arc-shaped and concave and fits the pre-lift belt (801), and the tail side of the arc plate (901) is arc-shaped and convex and corresponds to the bucket (812).
7. A double-lift machine for seed processing with cleaning function according to claim 6, characterized in that: The impurity collection system includes an impurity cylinder (604) and an impurity outlet pipe (5) of a fixed frame (1).
8. A double-stage elevator for seed processing with cleaning function according to claim 7, characterized in that: The first cleaning mechanism (3) includes a first cleaning chamber (301), the upper wall of the first cleaning chamber (301) is connected to the feed hopper (2), a first outlet (302) for the feed inlet (402) is opened through the middle of one side wall of the first cleaning chamber (301), an inclined screen plate (303) is fixedly connected inside the first cleaning chamber (301) on the first outlet (302), and an inclined weight plate (304) is fixedly connected inside the first cleaning chamber (301) below the first outlet (302). An L-shaped impurity bin (305) is fixedly connected to the periphery of the first cleaning bin (301), and the outlet of the impurity bin (305) corresponds to the impurity outlet pipe (5); a ramp (306) is fixedly connected to the bottom of the impurity bin (305) facing its outlet. Two second outlets (307) are provided through the other side wall of the first cleaning chamber (301) and are connected to the impurity chamber (305). The upper second outlet (307) is connected to the inclined screen plate (303), and the lower second outlet (307) is connected to the inclined weight plate (304). A valve plate (308) is provided in the impurity chamber (305) corresponding to the second outlet (307). The valve plates (308) are connected by a connecting column (309). A controller (310) for fixing the impurity chamber (305) is installed on the upper side of the valve plate (308).
9. A double-stage elevator for seed processing with cleaning function according to claim 7, characterized in that: The second cleaning mechanism (6) includes a second cleaning chamber (601) connected to the discharge port (403). The bottom of the second cleaning chamber (601) is conical and has a seed outlet pipe (605) fixed to the frame (1). A blower (602) is installed on the top of the second cleaning chamber (601). The air inlet pipe of the blower (602) is fixedly connected to the second cleaning chamber (601), and the air outlet pipe of the blower (602) is fixedly connected to the impurity pipe (603). The lower part of the impurity pipe (603) is connected to the impurity cylinder (604).