Winnowing pan and bucket elevator
By designing the main bucket and auxiliary bucket in the bucket structure, the problem of large material loss in low-speed bucket elevators was solved, achieving efficient material conveying and significantly reducing the material loss rate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI BESTSORT MASCH TECH CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-26
AI Technical Summary
In existing technologies, bucket elevators operating at low speeds suffer significant material loss during tumbling, resulting in low conveying efficiency.
A bucket structure was designed, including a main bucket and an auxiliary bucket. The holding spaces of the main bucket and the auxiliary bucket are connected. The auxiliary bucket is used to catch the material falling from the main bucket when it is tilted. By adjusting the opening orientation and shape design, the auxiliary bucket works in conjunction with the main bucket to reduce material loss.
Under low-speed operation, the material loss rate is reduced by more than 80%, which improves the utilization rate of materials.
Smart Images
Figure CN224278558U_ABST
Abstract
Description
Technical Field
[0001] The embodiments disclosed herein relate to the field of bucket elevator technology, and more specifically, to a bucket and a bucket elevator. Background Technology
[0002] A bucket elevator is a continuous conveying machine that uses a series of buckets evenly fixed to a traction component. These buckets, commonly called hoppers, are used to hold and vertically lift materials. Bucket elevators utilize buckets fixed to a traction chain or belt to transport bulk materials upwards in a vertical or near-vertical direction. Bucket elevators are classified into three types according to the method of conveying the buckets: ring chain, plate chain, and belt. They are also classified into fast bucket elevators and slow bucket elevators according to the conveying speed. Fast bucket elevators use speed characteristics to throw the material out of the buckets. The amount of material conveyed per unit time in a bucket elevator can be adjusted by changing the conveying speed.
[0003] In existing technologies, regardless of whether a bucket elevator uses a ring chain, plate chain, or belt conveyor for low-speed operation, insufficient centrifugal force causes material to fall off the bucket's path when it passes the top wheel. Furthermore, the slower the bucket elevator operates, the more material is lost. This situation results in low conveying efficiency for bucket elevators in scenarios where the material demand per unit time is relatively small. Utility Model Content
[0004] To overcome the above-mentioned defects, the embodiments of this disclosure provide a bucket and a bucket elevator, which solves the technical problem of large material loss when the bucket elevator operates at low speed in the prior art during the overturning process.
[0005] According to one aspect, at least one embodiment of this disclosure provides a bucket, comprising:
[0006] Main battle;
[0007] An auxiliary bucket is disposed on the side wall of the main bucket, and the auxiliary bucket is configured to receive the material falling from the main bucket when it is tilted.
[0008] For example, in a bucket provided in at least one embodiment of this disclosure, the main bucket has a first opening and the auxiliary bucket has a second opening, the orientation of the first opening and the orientation of the second opening forming an angle.
[0009] For example, in a bucket provided in at least one embodiment of this disclosure, the holding space of the main bucket is connected to the holding space of the auxiliary bucket.
[0010] For example, in a bucket provided in at least one embodiment of this disclosure, the auxiliary bucket has a mounting groove for placing the main bucket, and a discharge gap is formed between the inner wall of the auxiliary bucket and the outer wall of the main bucket.
[0011] For example, in a bucket provided in at least one embodiment of this disclosure, the cross-sectional area of the auxiliary bucket gradually decreases along the direction from the opening to the bottom, and the side of the main bucket away from the auxiliary bucket gradually moves away from the auxiliary bucket from the bottom of the main bucket to the first opening.
[0012] For example, in at least one embodiment of this disclosure, a dustpan further includes:
[0013] A baffle is provided on the outer side wall of the main bucket away from the auxiliary bucket.
[0014] A bucket elevator has an annular conveyor that circulates and lifts along a frame. The annular conveyor has an ascending section and a descending section. Buckets are disposed on the annular conveyor. The auxiliary bucket is configured such that when the opening direction of the main bucket changes in the ascending section, the auxiliary bucket is used to receive the material falling from the main bucket. After the main bucket enters the descending section, the material in both the main bucket and the auxiliary bucket falls under the action of gravity.
[0015] For example, in a bucket elevator provided in at least one embodiment of this disclosure, the baffle and the outer wall of the side of the main bucket away from the annular conveyor form a guide space. The guide space is used to guide the material away from the annular conveyor. The maximum vertical distance between the auxiliary bucket and the surface of the annular conveyor is greater than the minimum vertical distance between the guide space and the surface of the annular conveyor, so that the material in the auxiliary bucket can fall into the guide space.
[0016] For example, in a bucket elevator provided in at least one embodiment of this disclosure, there is a flow gap between the main bucket and the annular conveyor, the flow gap being used to prevent material from accumulating between the main bucket and the annular conveyor.
[0017] For example, in a bucket elevator provided in at least one embodiment of this disclosure, the outer wall of the main bucket near the annular conveyor has a boss, which is used to support the flow gap formed between the main bucket and the annular conveyor.
[0018] The beneficial effects of the embodiments disclosed herein are as follows:
[0019] In this disclosure, under low-speed operation, the auxiliary bucket effectively catches the material falling from the main bucket. The combined action of the main and auxiliary buckets allows the main bucket to enter the descending section from the ascending section with almost no material loss, and completes the unloading of material in the descending section. Compared with existing technologies, the material loss rate can be reduced by up to 80%, greatly improving the material utilization rate. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.
[0021] Figure 1 This is a schematic diagram of the overall structure of this disclosure;
[0022] Figure 2 A schematic diagram of the first angle structure of the conveyor unit, main bucket, and auxiliary bucket;
[0023] Figure 3 A schematic diagram of the main and auxiliary fighting structures from the first angle;
[0024] Figure 4 A schematic diagram of the main and auxiliary bucket structures from the second angle.
[0025] Figure 5 A schematic diagram of the second angle structure of the conveyor section, main bucket, and auxiliary bucket;
[0026] Figure 6 for Figure 5 Enlarged structural diagram at point A in the middle;
[0027] In the diagram: 300, main bucket; 400, auxiliary bucket; 310, first opening; 410, second opening; 320, mounting groove; 330, discharge gap; 500, baffle; 100, frame; 200, annular conveyor; 211, rising section; 212, falling section; 600, guide space; 700, flow gap; 340, boss. Detailed Implementation
[0028] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.
[0029] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."
[0030] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.
[0031] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0032] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.
[0033] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0034] like Figures 1-4 As shown, a bucket according to an embodiment of the present disclosure is illustrated, including a main bucket 300 and an auxiliary bucket 400, wherein both the main bucket 300 and the auxiliary bucket 400 are semi-open, and the auxiliary bucket 400 is fixed to the side wall of the main bucket 300 by welding or bolting. The holding spaces of the main bucket 300 and the auxiliary bucket 400 are connected. The main bucket 300 is used to hold and transfer materials, and the auxiliary bucket 400 can receive materials falling from the main bucket 300 when it is overturned.
[0035] In some examples, the main bucket 300 has a first opening 310, and the auxiliary bucket 400 has a second opening 410. The orientations of the first opening 310 and the second opening 410 form an angle. The orientations of the first opening 310 and the second opening 410 represent the vertical directions from the bottom of the main bucket 300 to the first opening 310, and from the bottom of the auxiliary bucket 400 to the second opening 410, respectively. The angle between the orientations of the first opening 310 and the second opening 410 is 90 degrees. When the first opening 310 is vertically upward, the second opening 410 faces horizontally. When the orientation of the first opening 310 towards the auxiliary bucket 400 is reversed, the orientation of the second opening 410 gradually rotates towards the horizontal, allowing material in the main bucket 300 to flow into the auxiliary bucket 400, preventing material from slipping and being lost.
[0036] In some examples, the auxiliary bucket 400 has a mounting slot 320 for placing the main bucket 300. The width of the auxiliary bucket 400 is greater than the width of the main bucket 300, ensuring that the auxiliary bucket 400 can fully receive the material falling from the main bucket 300. The main bucket 300 is welded or bolted to the mounting slot 320 of the auxiliary bucket 400, and a discharge gap 330 is formed between the inner wall of the mounting slot 320 and the outer wall of the main bucket 300. When the main bucket 300 scoops up material, the material in the auxiliary bucket 400 can flow out through the discharge gap 330, preventing material from accumulating inside the auxiliary bucket 400.
[0037] In some examples, the cross-sectional area of the auxiliary hopper 400 gradually decreases from the opening to the bottom, and the sidewalls of the auxiliary hopper 400 are arranged with a large opening and a small bottom, facilitating the material to slide out of the auxiliary hopper 400 along the sidewalls. The side of the main hopper 300 away from the auxiliary hopper 400 gradually moves away from the auxiliary hopper 400 from the bottom of the main hopper 300 to the first opening 310, facilitating the material to converge towards the bottom of the main hopper 300 after entering from the first opening 310.
[0038] In some examples, a baffle 500 is also included, which is disposed on the outer side wall of the main bucket 300 away from the auxiliary bucket 400. When the orientation of the first opening 310 is flipped downward, the material in the main bucket 300 and the auxiliary bucket 400 falls, and the material in another set of main buckets 300 and auxiliary buckets 400 located below the main buckets 300 and the auxiliary buckets 400 can be restricted to slide in one direction by the baffle 500.
[0039] A bucket elevator includes a frame 100, an annular conveyor 200, and a plurality of buckets spaced apart on the annular conveyor 200. The frame 100 provides a support framework for the entire elevator, ensuring the stable installation of all components. The annular conveyor 200 is arranged along the frame 100 and has an ascending section 211 and a descending section 212 to realize the cyclical conveying of materials. A main bucket 300 is installed on the conveying section of the annular conveyor 200 and is used to hold materials. Auxiliary buckets 400 are located on the outer wall of the main bucket 300 near the conveying section and work in conjunction with the main bucket 300 to reduce material loss. It should be noted that the conveying section can be arranged as a chain conveyor, a chain plate type, etc.
[0040] The drive mechanism includes a motor, a reducer, and a drive roller. The motor provides power, and the reducer converts the high-speed rotation of the motor into low-speed, high-torque rotation of the drive roller, thereby driving the conveyor section. A variable frequency motor with good speed regulation performance is typically selected to adjust the conveying speed according to actual needs. The drive roller is made of carbon steel with a rubber-coated surface to increase friction with the conveyor section.
[0041] The first opening 310 is parallel to the conveying direction of the annular conveyor 200, which facilitates the loading of materials and their stable placement during the conveying process. The main bucket 300 is trapezoidal or triangular prism in shape, wider at the top and narrower at the bottom, with an arc-shaped bottom, which helps the materials slide smoothly under the action of gravity.
[0042] The second opening 410 faces away from the conveying section. Along the conveying direction of the annular conveyor 200, the auxiliary bucket 400 is located in front of the main bucket 300. The shape of the auxiliary bucket 400 is similar to that of the main bucket 300, but the farthest vertical distance between the auxiliary bucket 400 and the conveying section is less than the farthest distance between the first opening 310 and the conveying section, so that the auxiliary bucket 400 can effectively catch the material falling from the main bucket 300.
[0043] The main bucket 300 scoops material from the bottom of the annular conveyor 200 and rises along the rising section 211 under the drive of the conveyor. At this time, the opening of the main bucket 300 faces upward, and the material is in a stable state inside the main bucket 300. Driven by the drive mechanism, the annular conveyor 200 transports the main bucket 300, loaded with material, upward along the rising section 211. During this process, the auxiliary bucket 400 moves along with the main bucket 300. Because its position is in front of the main bucket 300 and its opening faces away from the conveyor, it does not affect the normal material transport of the main bucket 300.
[0044] When the main bucket 300 reaches the top and is about to transition from the ascending section 211 to the descending section 212, the opening direction changes. Due to the slow operating speed of the slow-speed bucket elevator and insufficient centrifugal force, material may fall from the main bucket 300. At this time, the auxiliary bucket 400, located in front of the main bucket 300, comes into play, its opening precisely aligned with the location where material may spill from the main bucket 300, catching the falling material. As the conveyor continues to operate, the main bucket 300 and the auxiliary bucket 400 enter the descending section 212, where, under the influence of gravity, the material in both buckets falls smoothly, completing the unloading process.
[0045] After unloading the material, the main bucket 300 and auxiliary bucket 400 return to the bottom of the annular conveyor 200 as the conveyor continues to operate. After loading the material again, they are conveyed to the designated height by the annular conveyor 200 along the rising section 211. This cycle repeats to achieve continuous lifting and conveying of the material.
[0046] In low-speed operation, the auxiliary bucket 400 effectively catches the material falling from the main bucket 300. The combined action of the main bucket 300 and the auxiliary bucket 400 allows the main bucket 300 to enter the descending section 212 from the ascending section 211 with almost no material loss, and completes the unloading of the material in the descending section 212. Compared with existing technologies, the material loss rate can be reduced by more than 80%, greatly improving the material utilization rate.
[0047] It should be further clarified that the high-speed and low-speed parameters mentioned in this solution are defined in conjunction with the on-site material conveying conditions. When the operating speed of the annular conveyor 200 is sufficient to unload the material by throwing it out using centrifugal force, it is considered a high-speed operating state. Conversely, when the centrifugal force is insufficient to unload the material by throwing it out, and some material falls off the conveying path of the annular conveyor 200, it is considered a slow-speed operating state. For different materials and different hopper volumes, the dividing point between high and slow speeds varies and needs to be determined based on specific circumstances.
[0048] In some examples, the baffle 500 and the outer side wall of the main bucket 300 away from the annular conveyor 200 form a guide space 600. The guide space 600 is used to guide the material away from the annular conveyor 200. The maximum vertical distance between the auxiliary bucket 400 and the surface of the annular conveyor 200 is greater than the minimum vertical distance between the guide space 600 and the surface of the annular conveyor 200, so that the material in the auxiliary bucket 400 can fall into the guide space 600.
[0049] The baffles 500 are located on both sides of the side wall of the main bucket 300. Material in the auxiliary bucket 400 falls into the guide space 600, and under the action of gravity, the material will only be discharged in one direction. Moreover, the baffles 500, combined with the inclination of the side wall of the main bucket 300, can also provide an acceleration effect for the material in only one direction, further preventing the material from falling along the edge of the side wall of the main bucket 300, thus preventing the material from reaching the designated conveying position.
[0050] In some examples, a flow gap 700 exists between the main bucket 300 and the annular conveyor 200. A boss 340 is located on the outer wall of the main bucket 300 near the annular conveyor 200. The boss 340 supports the flow gap 700 formed between the main bucket 300 and the annular conveyor 200, preventing material accumulation between them. The main bucket 300 has mounting holes penetrating the boss 340 and the side wall for bolts to pass through.
[0051] The main bucket 300 is equipped with mounting holes that penetrate the boss 340 and the side wall. The position and size of the mounting holes precisely match the mounting position on the conveyor unit. Bolts are passed through the mounting holes and tightened with nuts to achieve a detachable connection between the main bucket 300 and the conveyor unit. This connection method not only facilitates the installation and disassembly of the main bucket 300 and allows for easy replacement when the bucket is worn or damaged, but also ensures the reliability of the connection, enabling it to withstand vibrations and impacts during elevator operation.
[0052] It should be further explained that the conveying part is made of rubber or fabric core material, which has a certain deformation capacity. Even after the head of the bolt head comes into contact with the drive roller, the conveying part can overcome the gap change caused by the bolt head and the drive roller by its own deformation.
[0053] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.
Claims
1. A dustpan, characterized in that, include: Main Fight (300); An auxiliary bucket (400) is disposed on the side wall of the main bucket (300), and the auxiliary bucket (400) is configured to receive the material falling from the main bucket (300) when it is overturned.
2. A dustpan according to claim 1, characterized in that, The main bucket (300) has a first opening (310), and the auxiliary bucket (400) has a second opening (410), with the orientation of the first opening (310) and the orientation of the second opening (410) forming an angle.
3. A dustpan according to claim 1, characterized in that, The holding space of the main container (300) is connected to the holding space of the auxiliary container (400).
4. A dustpan according to claim 3, characterized in that, The auxiliary bucket (400) has an installation groove (320) for placing the main bucket (300), and a discharge gap (330) is formed between the inner wall of the auxiliary bucket (400) and the outer wall of the main bucket (300).
5. A dustpan according to claim 2, characterized in that, The cross-sectional area of the auxiliary bucket (400) gradually decreases from the opening to the bottom, and the side of the main bucket (300) away from the auxiliary bucket (400) gradually moves away from the auxiliary bucket (400) from the bottom of the main bucket (300) to the first opening (310).
6. A dustpan according to claim 2, characterized in that, Also includes: A baffle (500) is disposed on the outer side wall of the main bucket (300) away from the auxiliary bucket (400).
7. A bucket elevator comprising an annular conveyor (200) for vertical and cyclic conveying along a frame, the annular conveyor (200) having an ascending section (211) and a descending section (212), wherein the buckets of claim 6 are disposed on the annular conveyor (200), characterized in that, The auxiliary bucket (400) is configured such that when the opening direction of the main bucket (300) changes in the rising section (211), the auxiliary bucket (400) is used to receive the material falling from the main bucket (300). After the main bucket (300) enters the falling section (212), the materials in both the main bucket (300) and the auxiliary bucket (400) fall under the action of gravity.
8. A bucket elevator according to claim 7, characterized in that, The baffle (500) and the outer side wall of the main bucket (300) away from the annular conveyor (200) form a flow guide space (600). The flow guide space (600) is used to guide the material away from the annular conveyor (200). The maximum vertical distance between the auxiliary bucket (400) and the surface of the annular conveyor (200) is greater than the minimum vertical distance between the flow guide space (600) and the surface of the annular conveyor (200), so that the material in the auxiliary bucket (400) can fall into the flow guide space (600).
9. A bucket elevator according to claim 7, characterized in that, There is a flow gap (700) between the main bucket (300) and the annular conveyor (200), which is used to prevent material from accumulating between the main bucket (300) and the annular conveyor (200).
10. A bucket elevator according to claim 9, characterized in that, The main bucket (300) has a boss (340) on the outer wall near the annular conveyor (200), the boss (340) is used to support the flow gap (700) formed between the main bucket (300) and the annular conveyor (200).