Bilateral feeding anti-blocking elevator feeding structure

Abstract

The utility model belongs to but is not limited to grain drying equipment and material conveying technical field, disclose a kind of double-side grain feeding anti-blocking elevator grain feeding structure, including support, two groups of symmetrical arrangement grain feeding mechanism, two grain outlets and elevator;Two groups of grain feeding mechanism are respectively fixed in support both sides, and each group of grain feeding mechanism includes two grain wheels and a discharging auger, and grain wheel is rotatably installed on support and is located in the directly above of corresponding discharging auger, and discharging auger extends along the direction of elevator and is rotatably installed on support;The end of the discharging auger of each grain outlet corresponds a group of grain feeding mechanism, and the outlet end of grain outlet extends to the feed inlet of elevator;Elevator is fixed in support one side.The utility model is applicable to compact, mobile grain dryer's grain circulation conveying scene, reduces equipment transportation and installation cost;Anti-blocking design reduces equipment downtime cleaning time, improves drying operation efficiency, reduces the maintenance cost of user.

Description

Technical Field

[0001] This utility model belongs to, but is not limited to, the field of grain drying equipment and material conveying technology, and particularly relates to a grain feeding structure for a double-sided grain inlet anti-blockage lifting machine, which is suitable for grain circulation conveying scenarios in compact, mobile grain dryers. Background Technology

[0002] Most existing grain dryers are equipped with elevators that use a single-inlet feeding structure, relying on a single feeding channel on the dryer base to supply material to the elevator. To ensure the feeding volume and smoothness of the single inlet, the base needs to be designed with a relatively high cavity to accommodate sufficient grain buffer space, resulting in a large overall size of the base and occupying a lot of space, which seriously restricts the development of dryers towards compact and mobile designs.

[0003] Meanwhile, during the single-inlet feeding process, grain is prone to accumulate in a single channel: on the one hand, the grain flow is concentrated in a single channel, and if the grain has a high moisture content or contains impurities, it is easy to form a blockage at the bottom of the channel where it connects with the discharge auger; on the other hand, the single grain feeding mechanism is difficult to control the grain falling speed evenly, which can easily lead to "material interruption" or "material overflow" problems, affecting the continuous working efficiency of the elevator.

[0004] Based on the above analysis, the urgent technical problems that need to be solved in the existing technology are: the dryer base of the single-inlet elevator is bulky and not suitable for compact design, and the single-channel grain feeding is prone to material blockage and unstable feeding efficiency. Utility Model Content

[0005] In view of the problems existing in the prior art, this utility model provides a grain feeding structure for a double-sided grain feeding anti-blockage elevator, which aims to solve the problems of large base volume and easy blockage of grain feeding.

[0006] This utility model is implemented as follows: a grain feeding structure for a double-sided grain feeding anti-blocking elevator includes a support frame, two symmetrically arranged grain feeding mechanisms, and two grain outlets; the support frame is an integral support foundation; the two sets of grain feeding mechanisms are respectively fixed on both sides of the support frame, each set of grain feeding mechanisms includes two grain feeding wheels and a discharge auger, the grain feeding wheels are rotatably mounted on the support frame and located directly above the corresponding discharge auger, the discharge auger extends along the direction of the elevator and is rotatably mounted on the support frame; each grain outlet corresponds to the end of the discharge auger of a set of grain feeding mechanisms, and the outlet end of the grain outlet extends to the feed inlet of the elevator; the elevator is fixed on one side of the support frame.

[0007] Furthermore, the two grain feeding wheels in each group of grain feeding mechanisms are arranged horizontally at intervals, and the rotation of the two grain feeding wheels pushes the grain above towards the middle of the two grain feeding wheels, so that the grain falls from the middle of the two grain feeding wheels into the corresponding discharge auger.

[0008] Furthermore, the grain outlet is funnel-shaped, and the bottom of the grain outlet is fixedly connected to the feed inlet of the elevator, so as to realize the sealed conveying of grain from the discharge auger to the elevator.

[0009] Furthermore, the feed inlet of the elevator has two branches, which are respectively connected to the two grain outlets.

[0010] Furthermore, the elevator is equipped with a conveyor belt or scraper structure to lift the grain entering from the two grain outlets upwards and finally transport it to the drying chamber of the dryer to complete the grain circulation.

[0011] Furthermore, it also includes a drive mechanism, which includes a two-stage reduction mechanism corresponding to the grain feeding wheel and a drive motor connected to the discharge auger. The discharge auger and the grain feeding wheel share the same motor to complete the grain discharge action.

[0012] Based on the above technical solutions and the technical problems solved, the advantages and positive effects of the technical solution to be protected by this utility model are as follows: Existing technologies using self-flowing inclined troughs are bulky and space-consuming, making them unsuitable for the space requirements of compact and mobile dryers. This invention is adapted for compact dryers; two symmetrically arranged grain inlet mechanisms replace the high base cavity required by traditional single-inlet systems. Firstly, dual-sided grain inlet disperses the buffer space requirement for the grain, allowing for a lower base height and significantly reducing the overall size of the dryer. Secondly, the symmetrical structure eliminates the need for additional lateral space, adapting to the confined installation environment of mobile dryers and improving equipment flexibility.

[0013] Existing technologies using gravity-flow inclined chutes are prone to grain blockage when drying rice in high-humidity conditions, severely impacting the drying process. This new invention offers significant anti-blockage performance and stable feeding efficiency. Each feeding mechanism utilizes a combination of double-push grain wheels and a discharge auger. The two push grain wheels move the grain towards the center, preventing accumulation at the channel edges. The discharge auger delivers the grain at a uniform speed, preventing blockages caused by concentrated flow within a single channel. Dual-sided feeding achieves dual-channel flow diversion, ensuring continuous feeding to the elevator and improving feeding efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the feeding structure of the double-sided feeding anti-blocking elevator provided in this embodiment of the utility model; Figure 2 This is a top view of the feed structure of the double-sided feed anti-blockage elevator provided in this embodiment of the utility model; Figure 3 This is a bottom view of the feed structure of the double-sided feed anti-blockage elevator provided in this embodiment of the utility model; Figure 4This is a right view of the feed structure of the double-sided feed anti-blockage elevator provided in this embodiment of the utility model; Figure 5 This is a front view of the grain feeding structure of the double-sided grain feeding anti-blockage elevator provided in this embodiment of the utility model; Figure 6 This is a rear view of the feed structure of the double-sided feed anti-blockage elevator provided in this embodiment of the utility model; In the diagram: 1. Support frame; 2. First set of grain feeding mechanism; 21. First grain feeding wheel; 22. Second grain feeding wheel; 23. First discharge auger; 3. Second set of grain feeding mechanism; 31. Third grain feeding wheel; 32. Fourth grain feeding wheel; 33. Second discharge auger; 4. First grain outlet; 5. Second grain outlet; 6. Elevator. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0016] A double-sided feed anti-blockage elevator feed structure includes a support frame, two sets of symmetrically arranged feed mechanisms, and an elevator connected to the feed outlet of the two sets of feed mechanisms. The two sets of feed mechanisms are respectively arranged on the left and right sides of the support frame, and each set of feed mechanisms includes two horizontally spaced feed wheels and a discharge auger located below the two feed wheels. The discharge auger extends along the direction of the elevator, with its feed end located between the two grain wheels and its discharge end having a grain outlet. The grain outlet is fixedly connected to the feed inlet of the elevator via a flange; The support frame is used to support the two sets of feeding mechanisms and the elevator, and to maintain the axial parallel and symmetrical arrangement of the two sets of feeding mechanisms.

[0017] Each set of grain feeding mechanisms has two grain feeding wheels, namely the first grain feeding wheel and the second grain feeding wheel. The two rotating shafts are set in parallel, and the outer circumference of the grain feeding wheel is provided with several radially distributed blades. The spiral blades of the discharge auger are located below the vertical projection area between the two feed wheels.

[0018] The outlet end of the grain outlet is a converging channel structure, and the outlet end extends along the grain conveying direction and inserts into the feed channel of the elevator. The inlet end of the grain outlet is coaxially connected to the outlet end of the discharge auger and is fixed to the bracket by bolts.

[0019] The front end of the bracket is provided with a mounting flange plate, on which two sets of motors, bearing seats and discharge auger mounting seats of the grain feeding mechanism are fixedly mounted; The rear end of the bracket is fixedly connected to the housing of the hoist via a reinforcing connector; The discharge auger axes of the two sets of grain feeding mechanisms are located in the same horizontal plane as the center line of the feed inlet of the elevator.

[0020] like Figure 1 and Figure 5 As shown, this utility model provides a grain feeding structure for a double-sided grain feeding anti-blockage elevator. The bottom sides of the support 1 are respectively provided with a first grain outlet 4 and a second grain outlet 5, which correspond to the discharge ends of the first discharge auger 23 and the second discharge auger 33, so that the dried grain can be discharged through their respective channels or merged into the next stage conveying device.

[0021] The first discharge auger 23 and the second discharge auger 33 are respectively equipped with a grain outlet 4 and a grain outlet 5 at their front ends. The grain outlet 5 is fixed to the front end of the support 1 by bolt flanges and is coaxially connected to the feed inlet of the elevator 6. The first grain outlet 4 and the second grain outlet 5 have a converging channel structure, and their outlet ends extend slightly inward into the feed chamber of the elevator 6. The elevator 6 is a vertically arranged shell structure, with its bottom connected to the first grain outlet 4 and the second grain outlet 5. A scraper chain or conveyor belt system is installed inside. The upper end of the chain is driven upward by a drive motor, which conveys the incoming grain vertically to the top discharge end.

[0022] The support frame 1, serving as the load-bearing and installation foundation for the entire machine, is constructed from welded steel plates. A mounting flange is located at the front end of the support frame 1 to secure two symmetrically arranged sets of feeding mechanisms 2 and 3, as well as the elevator 6. The middle section of the support frame 1 is bolted to the casing of the elevator 6, forming a rigid connection to enhance structural stability. Symmetrical mounting holes are provided on both sides of the support frame 1 to secure the feeding mechanisms 2 and 3, ensuring complete horizontal symmetry and achieving bidirectional balanced feeding.

[0023] The first set of grain feeding mechanisms 2 is installed on the left side of the support 1, including a first grain feeding wheel 21, a second grain feeding wheel 22, and a first discharge auger 23. The first and second grain feeding wheels 21 and 22 are supported on the side plate of the support 1 by bearings and are arranged horizontally at intervals. The first and second grain feeding wheels 21 and 22 are connected to the secondary reduction mechanism via chains. Each grain feeding wheel has a paddle on its outer circumference to push the grain falling onto its surface radially towards the center. The first discharge auger 23 extends along the direction of the elevator and is installed below the support 1. Its top position is opposite to the central area between the first and second grain feeding wheels 21 and 22, forming a grain receiving channel to ensure that the grain being fed down enters the auger's conveying chamber. The extended discharge auger shares a motor with the grain feeding wheels to drive rotation and complete the grain discharge action.

[0024] The second feeding mechanism 3 is installed on the right side of the support 1, symmetrically arranged with the first feeding mechanism 2. The second feeding mechanism 3 includes a third feeding wheel 31, a fourth feeding wheel 32, and a second discharge auger 33. The third and fourth feeding wheels 31 and 32 are arranged in the same manner as the first group, with consistent spacing, and their axes are parallel to the axis of the second discharge auger 33. The third and fourth feeding wheels 31 and 32 are supported on the support base on the right side of the support 1 by bearings. The spiral blades of the second discharge auger 33 are aligned with those of the first discharge auger 23, and are installed at the front and rear ends of the support 1 via bearing seats, allowing materials from both sides to be simultaneously conveyed towards the center of the support and enter the feed inlet of the elevator 6.

[0025] The drive mechanism includes a two-stage reduction mechanism connected to the first feed roller 21, the second feed roller 22, the third feed roller 31, and the fourth feed roller 32, and drive motors connected to the first discharge auger 23 and the second discharge auger 33, respectively. Each drive motor has two sprockets and uses two chains to drive the first discharge auger 23 and the second discharge auger 33, respectively. The sprocket on the extension shaft of the first discharge auger 23 is connected to the end sprocket of the two-stage reduction mechanism via a chain. The chain of the sprocket at the other end of the two-stage reduction mechanism passes sequentially through the fourth feed roller 32, the third feed roller 31, the second feed roller 22, and the first feed roller 21, forming a closed loop. Each motor is rigidly connected to its corresponding shaft via a coupling. The output shaft of the drive motor for the discharge auger is connected via a flange, driving the auger shaft to rotate at low speed. The entire drive mechanism is fixed to the front flange plate of the bracket 1 and connected to the control system via cables.

[0026] The working principle of this elevator structure is as follows: Grain from the drying silo is continuously pushed to its respective discharge augers by the grain feeding wheels. The first and second grain feeding wheels 21 and 22 on the left rotate under the drive of the secondary reduction mechanism. Their outer peripheral blades radially gather the grain grains falling onto the surface towards the center, achieving uniform feeding. The third and fourth grain feeding wheels 31 and 32 on the right also work under the drive of the secondary reduction mechanism, forming a symmetrical cooperation with the mechanism on the left. Under the feeding action, the grain falls into the first and second discharge augers 23 and 33 located below. The rotating spiral blades quantitatively transport the grain along the extension end to the grain outlet. Due to the symmetrical arrangement of the mechanisms on both sides, material can be fed simultaneously towards the center of the support 1, achieving bidirectional balanced grain feeding.

[0027] The front ends of the first discharge auger 23 and the second discharge auger 33 are connected to the first grain outlet 4 and the second grain outlet 5, respectively. The grain outlets are fixed to the front end of the support 1 by bolt flanges, forming a converging channel structure. After being conveyed by the discharge augers, the grain enters the converging section of the first grain outlet 4 and the second grain outlet 5, and is conveyed to the extension end. Under the action of gravity and inertia, it is guided into the feed inlet of the elevator 6. The outlet of the converging channel extends slightly inward into the feed chamber of the elevator, which can effectively reduce the impact and spillage of the grain flow, and ensure that the material flows smoothly into the vertical lifting section.

[0028] The grain enters the vertically arranged elevator 6. The lower end of the elevator 6's casing is connected to the first grain outlet 4 and the second grain outlet 5. An internal scraper chain or conveyor belt system is installed, and the bottom is driven by a motor for cyclical operation. Scrapers evenly installed on the chain continuously collect the grain from the two outlets and push it upwards along the inner wall of the casing as the chain moves upwards, achieving continuous lifting. The casing's sealed structure prevents dust leakage, and guide plates keep the grain flow centered and stable in the vertical channel, preventing grain flow deviation or jamming.

[0029] When the scraper chain reaches the top of the elevator 6, the grain, under the action of inertia and the guide shroud, is thrown out from the top discharge port and enters the next-level storage silo or horizontal conveying equipment, completing the vertical conveying and transfer of the dried grain. The entire system's drive mechanism shares a motor, which is connected to the first discharge auger 23 and the second discharge auger 33. The secondary reduction mechanism is connected to the first grain feeding wheel 21, the second grain feeding wheel 22, the third grain feeding wheel 31, and the fourth grain feeding wheel 32, as well as the first discharge auger 23. The control system automatically adjusts the motor speed according to the grain flow rate, ensuring coordinated operation of the grain feeding wheels, augers, and elevator, achieving a continuous, stable, and efficient grain conveying process.

[0030] like Figures 2 to 4 As shown, the grain in the drying chamber of the dryer falls into the grain feeding areas on both sides of the support 1. The grain falling into these areas is first fed towards the center of the group by the first feeding wheel 21, the second feeding wheel 22, the third feeding wheel 31, and the fourth feeding wheel 32, respectively, to prevent grain from accumulating on the sides. After being fed, the grain falls into the spiral chambers of the first discharge auger 23 and the second discharge auger 33, and is continuously conveyed to the first discharge port 4 and the second discharge port 5 as the auger shaft rotates. After entering the feeding chamber of the elevator 6 from the discharge port, the grain is lifted vertically by the scraper chain to the top discharge port, thus completing the cyclic conveying. The two sets of feeding mechanisms are symmetrically arranged, and the discharge paths are independent, ensuring balanced feeding and reducing the load on one side. The entire device achieves continuous and stable material transfer through the rational distribution of the mechanical structure.

[0031] Example 1: Independent Motor Drive Structure In this embodiment, the support frame 1 adopts a rectangular box-type welded frame, with a thickened flange plate at the front end to enhance installation rigidity. The first set of grain feeding mechanisms 2 and the second set of grain feeding mechanisms 3 are respectively installed on the left and right sides of the support frame 1. The rotating shafts of the first grain feeding wheel 21, the second grain feeding wheel 22, the third grain feeding wheel 31, and the fourth grain feeding wheel 32 are all supported on the side plates of the support frame through bearing seats. The first discharge auger 23 and the second discharge auger 33 of each set of grain feeding mechanisms are connected to the front and rear ends of the support frame through bearings. The axis of the auger shaft is arranged parallel to the transverse direction of the support frame, and the spiral direction is the same. The two sets of grain feeding mechanisms are symmetrically fixed to both sides of the support frame with bolts to keep the overall structure balanced.

[0032] The drive mechanism uses a single motor to drive two discharge augers. The extension shaft at the end of the discharge augers is connected to a secondary reduction mechanism via a chain. The secondary reduction mechanism drives the first feed roller 21, the second feed roller 22, the third feed roller 31, and the fourth feed roller 32 to rotate. Each motor is connected to the shaft system via a coupling and mounted on a motor base at the front end of the support, forming a detachable modular layout. The front end of the discharge augers has a first feed outlet 4 and a second feed outlet 5, and the outlet ends of the feed outlets are inserted into the feed chamber of the elevator 6. The elevator 6 is a welded steel plate shell, with a scraper chain assembly installed inside.

[0033] Example 2: Single-drive distribution gear linkage structure In this embodiment, the grain feeding mechanism 2 and the grain feeding mechanism 3 are synchronously driven by a linkage gear mechanism. A gearbox mounting plate is provided at the front end of the bracket 1, and the drive shafts of the grain feeding wheels on both sides are connected to the transmission gears in the gearbox via couplings. A single main drive motor is installed in the middle of the gearbox, and the first discharge auger 23 is linked to the gearbox through chain drive to achieve synchronous feeding; the sprocket of the extension shaft of the first discharge auger 23 is connected to the end sprocket of the secondary reduction mechanism, and the first grain feeding wheel 21, the second grain feeding wheel 22, the third grain feeding wheel 31, and the fourth grain feeding wheel 32 are simultaneously driven to rotate through a set of parallel gears of the secondary reduction mechanism.

[0034] The support frame 1 adopts a split assembly structure, and the left and right sets of grain feeding mechanisms can be independently disassembled and assembled. The interface flanges of the first grain outlet 4 and the second grain outlet 5 with the elevator 6 adopt an adjustable connection structure, and the grain outlet outlet and the elevator inlet are kept coaxial. The elevator 6 has a belt conveyor structure inside, and the upper and lower rollers are supported in the shell by a tensioning mechanism.

[0035] Example 3: Integrated symmetrical arrangement structure of the box In this embodiment, the support frame 1 and the elevator 6 are an integrated welded frame. A feed diversion hood is provided above the support frame, and a first set of feed mechanisms 2 and a second set of feed mechanisms 3 are provided on both sides of the lower part. Two sets of first feed rollers 21, second feed rollers 22, third feed rollers 31, and fourth feed rollers 32 are arranged parallel to each other on the same horizontal plane, with a first discharge auger 23 and a second discharge auger 33 respectively located below them. The bearing seats of the discharge augers are fixed to the bottom of the support frame by reinforcing plates, and their axes are located on the same horizontal plane as the center line of the feed inlet of the elevator 6.

[0036] Grain outlets 4 and 5 are welded to the ends of the discharge auger and extend in a converging shape to the feed chamber of the elevator 6. The drive mechanism is installed in the base at the rear of the support frame and includes a main motor and a set of distribution gears, which output to the grain feed wheel shaft and the auger shaft, respectively. All transmission components are enclosed by a sealed protective cover to form a dustproof installation cavity.

[0037] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any modifications, equivalent substitutions and improvements made by those skilled in the art within the technical scope disclosed in this utility model, and within the spirit and principles of this utility model, should be included within the protection scope of this utility model.

Claims

1. A grain feeding structure for a double-sided grain feeding anti-blocking elevator, characterized in that, It includes a support frame, two sets of symmetrically arranged feeding mechanisms, and a hoist connected to the discharge end of the two sets of feeding mechanisms. The two sets of feeding mechanisms are respectively arranged on the left and right sides of the support frame, and each set of feeding mechanisms includes two horizontally spaced feeding wheels and a discharge auger located below the two feeding wheels. The discharge auger extends along the direction of the elevator, with its inlet end located between the two grain wheels and its outlet end equipped with a grain outlet. The grain outlet is fixedly connected to the feed inlet of the elevator via a flange; The support frame is used to support the two sets of feeding mechanisms and the elevator, and to maintain the axial parallel and symmetrical arrangement of the two sets of feeding mechanisms.

2. The grain feeding structure of the double-sided grain feeding anti-blockage elevator according to claim 1, characterized in that, Each set of grain feeding mechanisms has two grain feeding wheels, namely the first grain feeding wheel and the second grain feeding wheel. The two rotating shafts are set in parallel, and the outer circumference of the grain feeding wheel is provided with several radially distributed blades. The spiral blades of the discharge auger are located below the vertical projection area between the two feed wheels.

3. The grain feeding structure of the double-sided grain feeding anti-blockage elevator according to claim 2, characterized in that, The dual-sided grain inlet anti-blockage elevator structure is equipped with a drive mechanism, which includes a two-stage reduction mechanism corresponding to the grain feeding wheel and a drive motor connected to the discharge auger. The discharge auger and the grain feeding wheel share the same motor to complete the grain discharge action.

4. The grain feeding structure of the double-sided grain feeding anti-blockage elevator according to claim 3, characterized in that, The outlet end of the grain outlet is a converging channel structure, which extends along the grain conveying direction and inserts into the feed channel of the elevator. The inlet end of the grain outlet is coaxially connected to the outlet end of the discharge auger and is fixed to the bracket by bolts.

5. The grain feeding structure of the double-sided grain feeding anti-blockage elevator according to claim 4, characterized in that, The elevator is a vertically arranged enclosed shell structure, inside which is a scraper chain or conveyor belt driven by a drive motor. The lower end of the scraper chain or conveyor belt is located directly below the grain outlet, and the upper end is connected to the discharge outlet.

6. The grain feeding structure of the double-sided grain feeding anti-blockage elevator according to claim 5, characterized in that, The front end of the bracket is provided with a mounting flange plate, on which two sets of motors, bearing seats and discharge auger mounting seats of the grain feeding mechanism are fixedly mounted; The rear end of the bracket is fixedly connected to the housing of the hoist via a reinforcing connector; The discharge auger axes of the two sets of grain feeding mechanisms are located in the same horizontal plane as the center line of the feed inlet of the elevator.

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