Novel linear vibration exciter feeder

Abstract

The utility model relates to the technical field of material conveying equipment, in particular to a novel linear vibration exciter feeding machine which comprises a feeding machine frame and a linear vibration exciter installed on the feeding machine frame, the linear vibration exciter comprises two sets of vibration excitation assemblies, each set of vibration excitation assembly comprises an eccentric vibration excitation shaft arranged in a rotating mode, and the eccentric vibration excitation shaft is connected with the linear vibration exciter. The right flywheel and the left flywheel are fixedly connected to the two sides of the eccentric excitation shaft and coaxially rotate with the eccentric excitation shaft. And the gears on the left flywheels of the two groups of excitation assemblies are meshed and linked. The motor drives the two excitation assemblies to move synchronously, and the eccentric excitation shafts in the two excitation assemblies are equal in amplitude and opposite in rotating direction, so that the amplitudes of the two excitation assemblies are overlapped in the direction perpendicular to the screen surface and offset in the direction parallel to the screen surface. The scheme has the advantages that the excitation force stability is improved, the amplitude is flexibly adjusted, the equipment reliability is improved, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of material conveying equipment technology, and in particular to a novel linear vibrator feeder. Background Technology

[0002] In modern industrial production, the precise and efficient conveying and feeding of materials is a crucial link in ensuring the continuity and stability of the production process, and is widely used in mining, building materials processing, chemical manufacturing, and food production. Taking the mining industry as an example, from the initial mining of ore to subsequent processes such as beneficiation, crushing, screening, and transportation, all rely on highly reliable feeding equipment. If fluctuations or interruptions occur in the feeding process, it can lead to a decrease in production line efficiency at best, and at worst, trigger a chain reaction of equipment failures, resulting in serious economic losses.

[0003] Traditional linear vibratory feeders, as core equipment for material conveying, while meeting basic requirements to a certain extent, have gradually revealed significant technical defects under long-term high-load conditions. Specifically, their vibration structure design suffers from the following problems: insufficient vibration force stability; the eccentric blocks and bearings of traditional equipment are prone to wear or loosening under high-frequency vibration due to uneven stress, leading to fluctuations in vibration force. This instability directly manifests as uneven material conveying, affecting the processing accuracy of downstream processes. Furthermore, poor adjustment flexibility; the traditional counterweight adjustment method is singular, making it difficult to achieve precise fine-tuning of the vibration force and adapt to the dynamic requirements of different material characteristics or conveying volumes.

[0004] Against this backdrop, there is an urgent need for a new type of linear vibrator feeder that can improve the stability of the excitation force and achieve flexible amplitude adjustment through structural innovation while maintaining high-efficiency conveying capacity, thereby meeting the urgent needs of modern industry for feeding equipment with high reliability and low maintenance costs.

[0005] To address the aforementioned issues, existing technologies urgently need improvement. Summary of the Invention

[0006] To address the aforementioned problems, the purpose of this utility model is to provide a novel linear vibrator feeder, which has the advantages of improving the stability of the excitation force, enabling flexible amplitude adjustment, enhancing equipment reliability, and extending service life.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] This application provides a novel linear vibrator feeder, the technical solution of which is as follows: A novel linear vibrator feeder includes a feeder frame and a linear vibrator mounted on the feeder frame. The linear vibrator includes two sets of excitation components. Each set of excitation components includes a rotatably mounted eccentric excitation shaft, and a right flywheel and a left flywheel fixed to both sides of the eccentric excitation shaft and rotating coaxially with it. Gears on the left flywheels of the two sets of excitation components mesh and are linked. A motor drives the two sets of excitation components to move synchronously. The eccentric excitation shafts in the two sets of excitation components have equal amplitudes and opposite directions, thereby causing the amplitudes of the two sets of excitation components to superimpose in the direction perpendicular to the screen surface and cancel each other out in the direction parallel to the screen surface.

[0009] Furthermore, this application also proposes that the feeder frame is constructed to be inclined downwards from the inlet end to the outlet end, and the inclination angle of the axis of the two sets of excitation components of the linear vibrator is consistent with the inclination angle of the feeder frame.

[0010] Furthermore, this application proposes that each set of excitation components has several right and left counterweights detachably and eccentrically mounted on its right and left flywheels, respectively. These right and left counterweights are positioned on the right and left flywheels on either side of the eccentric portion of the eccentric excitation shaft. When the eccentric excitation shaft rotates, it drives the right flywheel and its right counterweight, and the left flywheel and its left counterweight to rotate synchronously.

[0011] Furthermore, this application also proposes that the left and right counterweights are constructed as arc plates, with through holes on the arc plates, and fastening components passing through the through holes to fix several arc plates to the right or left flywheel.

[0012] Furthermore, this application proposes that the gear is sleeved on the outside of the left flywheel, and multiple pin holes are formed on the outer edge of the left flywheel and the inner edge of the gear, with pins inserted into the pin holes. The gear is circumferentially linked to the left flywheel via the pins.

[0013] Furthermore, this application also proposes that the left counterweight is fixed to the left flywheel, and the outer edge of the left counterweight is press-fitted onto the gear, thereby limiting the gear in the axial direction.

[0014] Furthermore, this application also proposes that bearing seats are provided on both sides of the feeder frame, and the eccentric excitation shaft is rotatably mounted on the bearing seats via roller bearings. An excitation assembly sleeve is provided between the bearing seats on both sides, the eccentric excitation shaft is disposed inside the excitation assembly sleeve, and an oil drainer is provided at the lower end of the excitation assembly sleeve.

[0015] Furthermore, this application also proposes that the feeder frame includes a frame body, and wear-resistant plates and multiple wear-resistant bars arranged on the upper surface of the frame body along the conveying direction, wherein the wear-resistant plates and multiple wear-resistant bars are inclined downward along the conveying direction.

[0016] Furthermore, this application also proposes that the main frame includes a right side plate and a left side plate connected by a U-shaped beam, an H-shaped beam, and a circular tubular beam, as well as a rear baffle connecting the rear ends of the right side plate and the left side plate. A wear-resistant rear side plate is provided on the inner wall of the rear baffle above the wear-resistant plate, and wear-resistant side plates are provided on the right side plate and the left side plate above the wear-resistant plate and the multiple wear-resistant bars. The wear-resistant plate, wear-resistant bars, wear-resistant side plates, and wear-resistant rear side plates are made of highly wear-resistant material.

[0017] Furthermore, this application also proposes that the feeder frame is provided with a front spring group, a longitudinal spring group and a rear spring, and the rear spring adopts a multi-group spring staggered installation form with a spring seat height error of less than 1mm, so as to improve the natural frequency and extend the service life.

[0018] As can be seen from the above, the novel linear vibrator feeder and its frame structure provided in this application, through the synchronous movement of two sets of vibrating components, makes the amplitude superimposed on each other in the direction perpendicular to the screen surface and cancel each other out in the direction parallel to the screen surface, thereby improving the stability of the excitation force. The amplitude can be flexibly adjusted through the detachable counterweight, which has the advantages of improving equipment reliability and extending service life. Attached Figure Description

[0019] Figure 1 This is an axial view of the device of this utility model.

[0020] Figure 2 This is a side view of the device of this utility model.

[0021] Figure 3 This is a cross-sectional view of the linear exciter of this utility model.

[0022] Figure 4 This is a schematic diagram showing the shape and installation of the left counterweight of this utility model.

[0023] Figure 5 This is a schematic diagram showing the shape and installation of the right counterweight of this utility model.

[0024] Figure 6 This utility model relates to multiple mounting configurations for the rear spring. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more, unless otherwise expressly defined.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, or a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0029] In this invention, unless otherwise explicitly 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.

[0030] like Figure 1-6As shown, this embodiment relates to a novel linear vibrator feeder, including a feeder frame and a linear vibrator 14 mounted on the feeder frame.

[0031] like Figure 1 and 2 As shown in Figure 6, the feeder frame includes a frame body, and wear-resistant plates 4 and multiple wear-resistant bars 8 arranged on the upper surface of the frame body along the conveying direction. The wear-resistant plates 4 and multiple wear-resistant bars 8 are inclined downwards along the conveying direction. The wear-resistant plates 4 and multiple wear-resistant bars 8 can be made of high-wear-resistant alloy materials, such as high-chromium cast iron or tungsten carbide composite materials, to enhance their wear resistance. The thickness of the wear-resistant plates 4 can be adjusted according to the material characteristics. The wear-resistant bars 8 can adopt a segmented design and be fixed to the frame body by bolts or welding for easy replacement and maintenance. Specifically, the downward inclination of the wear-resistant plates 4 and multiple wear-resistant bars 8 along the conveying direction effectively reduces direct wear on the frame body during material conveying. During conveying, the material slides along the inclined wear-resistant plates 4 and wear-resistant bars 8, thereby reducing the contact area and friction with the frame body. This design not only extends the service life of the equipment but also reduces maintenance costs. Furthermore, the selection of highly wear-resistant materials for the wear-resistant plate 4 and the multi-segment wear-resistant bars 8 further enhances its wear resistance, ensuring efficient material conveying capacity even under long-term high-load conditions. Thus, this technical solution, by optimizing the structural design of the feeder frame, significantly reduces wear during material conveying, extends the equipment's service life, and improves its operating efficiency. Compared with existing technologies, this solution is not only simple in structure and easy to implement, but also highly practical and economical, effectively solving the problem of shortened equipment lifespan caused by wear in traditional feeder frames.

[0032] Furthermore, the main frame connects the right side plate 1, left side plate 2, and rear baffle 3 via U-beams 5, H-beams 6, and cylindrical beams 7, enhancing the overall structural stability and durability. Wear-resistant rear side plates 10 are installed on the inner wall of the rear baffle 3 above the wear-resistant plate 4, and wear-resistant side plates 9 are installed on the right side plate 1 and left side plate 2 above the wear-resistant plate 4 and the multi-segment wear-resistant bars 8. The wear-resistant plate 4, wear-resistant bars 8, wear-resistant side plates 9, and wear-resistant rear side plates 10 are made of highly wear-resistant materials. Specifically, the selection of U-beams 5, H-beams 6, and cylindrical beams 7 can be adjusted according to the needs of the actual application scenario. For example, in applications requiring higher strength, thicker H-beams 6 can be selected. In applications requiring weight reduction, cylindrical beams 7 can be selected. The installation position and quantity of wear-resistant rear side plates 10 and wear-resistant side plates 9 can also be optimized according to the material conveying path and wear conditions. For example, in areas with significant material impact, the thickness or number of wear-resistant side plates 9 can be increased. The selection of high-wear-resistant materials can include, but is not limited to, high-chromium cast iron and ceramic composite materials; the specific material selection can be adapted based on factors such as material hardness and conveying speed. Thus, this technical solution significantly improves the wear resistance of the frame during material conveying by optimizing the structural design of the main frame and using high-wear-resistant materials to protect key components. Compared with existing technologies, this solution not only reduces wear and maintenance frequency but also extends the service life of the equipment, effectively solving the technical problem of insufficient wear resistance of the feeder frame during material conveying.

[0033] Furthermore, the feeder frame is equipped with a front spring group 11, a longitudinal spring group 12, and a rear spring 13. The rear spring 13 adopts a multi-group spring staggered installation configuration, with a spring seat height error of less than 1mm, to improve the natural frequency and extend service life. The arrangement of the front spring group 11, longitudinal spring group 12, and rear spring 13, especially the rear spring 13's multi-group spring staggered installation configuration, effectively improves the natural frequency of the feeder frame, thereby causing the feeder's operating frequency to deviate from its natural frequency, thus increasing the feeder's service life and reliability. This design, by reducing the spring seat height error to less than 1mm, ensures the accuracy of spring installation, thereby enhancing the stability and durability of the entire system and extending the equipment's service life.

[0034] like Figure 3As shown, the linear vibrator 14 includes two sets of excitation components. Each set of excitation components includes a rotatably mounted eccentric excitation shaft 14-1, and a right flywheel 14-2 and a left flywheel 14-4 fixed to both sides of the eccentric excitation shaft 14-1 and rotating coaxially with it. Gears 14-3 on the left flywheels 14-4 of both sets of excitation components mesh and are linked. The motor 15 drives the two sets of excitation components to move synchronously. The eccentric excitation shafts 14-1 in the two sets of excitation components have equal amplitudes but opposite directions, thus causing the amplitudes of the two sets of excitation components to superimpose in the direction perpendicular to the screen surface and cancel each other out in the direction parallel to the screen surface. The right flywheel 14-2 and the left flywheel 14-4 are fixed to both sides of the eccentric excitation shaft 14-1 by key or bolt connection, ensuring coaxial rotation with the excitation shaft. The meshing linkage of gears 14-3 is achieved through the gear tooth profile design. The gear tooth profile can be spur, helical, or herringbone to ensure the synchronous movement of the two sets of excitation components. The driving method of motor 15 can be direct drive or indirect drive through transmission devices such as belts and chains to ensure the synchronous movement of the two sets of excitation components.

[0035] Furthermore, the eccentric excitation shafts 14-1 have equal amplitudes but opposite directions of rotation, which is achieved by adjusting the eccentricity of the eccentric excitation shafts 14-1 or the weight of the counterweights. In a preferred embodiment, the eccentricity of the eccentric excitation shafts 14-1 can be adjusted by changing the position of the eccentric blocks or replacing them with eccentric blocks of different weights. The weight of the counterweights can be adjusted by increasing or decreasing the number of counterweights or replacing them with counterweights of different weights. Thus, the amplitudes of the two sets of excitation components are superimposed in the direction perpendicular to the screen surface and cancel each other out in the direction parallel to the screen surface, thereby achieving stability of the excitation force and flexible adjustment of the amplitude.

[0036] Specifically, the feeder frame serves as the basic structure, supporting the entire device. The linear vibrator 14, through the design of two sets of vibration components, achieves stability of the excitation force and flexible adjustment of the amplitude. The combination of the eccentric excitation shaft 14-1, the right flywheel 14-2, and the left flywheel 14-4 ensures uniform distribution and efficient transmission of the excitation force. The meshing linkage of the gear 14-3 and the synchronous drive of the motor 15 ensure coordinated movement of the vibration components, thereby enhancing the excitation effect in the direction perpendicular to the screen surface and reducing unnecessary vibration in the direction parallel to the screen surface. In this application, the eccentric shaft and the counterweight in the two vibration components are synchronized through gears, providing a reliable excitation force for the feeder. Compared with the prior art, the technical solution of this application, through the design of two sets of vibration components, solves the technical problems of excitation force stability and amplitude adjustment flexibility in traditional linear vibrator feeders. Specifically, the combination of the eccentric excitation shaft 14-1, the right flywheel 14-2, and the left flywheel 14-4 ensures uniform distribution and efficient transmission of the excitation force. The meshing linkage of gears 14-3 and the synchronous drive of motor 15 ensure the coordinated movement of the excitation components, thereby enhancing the excitation effect in the direction perpendicular to the screen surface and reducing unnecessary vibration in the direction parallel to the screen surface. Therefore, the technical solution of this application has the advantages of stable excitation force, flexible amplitude adjustment, simple structure, and convenient maintenance.

[0037] Furthermore, the feeder frame is constructed to gradually slope downwards from the inlet to the outlet, and the tilt angle of the axis of the two sets of vibration components of the linear vibrator 14 is consistent with the tilt angle of the feeder frame. Specifically, the tilt design of the feeder frame can be achieved by adjusting the support structure or installation angle of the frame to ensure that the tilt angle from the inlet to the outlet meets the material conveying requirements. The tilt angle of the axis of the two sets of vibration components of the linear vibrator 14 can be achieved by adjusting the installation position of the vibrator or using an adjustable mounting bracket to ensure that it is consistent with the tilt angle of the feeder frame. In addition, the tilt angle of the axis of the vibration component can also be achieved by adjusting the angle of the vibration shaft or using an angle-adjustable connecting component to ensure that the direction of the vibration force is consistent with the material conveying direction. Thus, the tilt design of the feeder frame allows the material to slide down naturally under the action of gravity, reducing resistance during the conveying process. The tilt angle of the two sets of excitation components of the linear vibrator 14 is consistent with the tilt angle of the feeder frame, ensuring that the direction of the excitation force is consistent with the material conveying direction. This avoids the dispersion or cancellation of excitation force due to inconsistent angles, thereby improving the stability and efficiency of material conveying. Through this design, the excitation force can be more effectively transmitted to the material, reducing fluctuations and interruptions during conveying and ensuring the continuity and stability of material conveying. Compared with existing technologies, the technical solution of this application solves the technical problem of unstable material conveying by optimizing the tilt angle of the feeder frame and the excitation components, thus improving the reliability and working efficiency of the equipment.

[0038] Furthermore, several right counterweights 14-5 and left counterweights 14-6 are detachably and eccentrically mounted on the right flywheel 14-2 and left flywheel 14-4 of each set of excitation components. The right counterweights 14-5 and 14-6 are positioned on the right flywheel 14-2 and left flywheel 14-4 on either side of the eccentric portion of the eccentric excitation shaft 14-1. When the eccentric excitation shaft 14-1 rotates, it drives the right flywheel 14-2 and its right counterweight 14-5, and the left flywheel 14-4 and its left counterweight 14-6 to rotate synchronously. Specifically, the right counterweights 14-5 and 14-6 are detachably mounted on the right flywheel 14-2 and left flywheel 14-4 using bolts or other fasteners. This design allows the number and position of the counterweights to be adjusted according to actual needs. For example, the counterweights can be of different weights or sizes to achieve precise adjustment of the excitation force. Furthermore, the counterweights are installed on both sides of the eccentric portion of the eccentric excitation shaft 14-1. This arrangement ensures that the counterweights rotate synchronously when the eccentric excitation shaft 14-1 rotates, thereby increasing the eccentricity of the eccentric excitation shaft 14-1. Thus, this technical solution achieves flexible adjustment of the excitation force by detachably and eccentrically installing the right counterweight 14-5 and the left counterweight 14-6 on the right flywheel 14-2 and the left flywheel 14-4. The right counterweight 14-5 and left counterweight 14-6 are installed on either side of the eccentric portion of the eccentric excitation shaft 14-1. This design allows the right flywheel 14-2 and left flywheel 14-4, along with their counterweights, to rotate synchronously when the eccentric excitation shaft 14-1 rotates. The right counterweight 14-5 and left counterweight 14-6 increase the eccentricity of the eccentric excitation shaft 14-1, thereby changing the excitation force by adjusting the number of counterweights. This detachable counterweight design improves the flexibility of excitation force adjustment, adapting to the dynamic needs of different material characteristics or conveying volumes, and solves the problem of poor excitation force adjustment flexibility in traditional equipment. Compared with existing technologies, this solution not only improves the adjustment accuracy of the excitation force but also simplifies the adjustment process and reduces equipment maintenance costs.

[0039] Further as Figure 4 and 5As shown, the left counterweight 14-6 and right counterweight 14-5 are constructed as arc-shaped plates with through holes. Fastening components pass through these through holes to secure several arc-shaped plates to the right flywheel 14-2 or the left flywheel 14-4. Specifically, the arc-shaped plate design allows the counterweights to better conform to the curved surface of the flywheel, thereby enhancing the stability of the installation. The through holes allow multiple arc-shaped plates to be stacked and fixed using the fastening components. This structure not only facilitates installation and disassembly but also allows for flexible adjustment of the excitation force by increasing or decreasing the number of arc-shaped plates. As a preferred embodiment, the fastening components can be a combination of bolts and nuts. Tightening the nuts secures the arc-shaped plates to the flywheel, ensuring that they do not loosen during high-speed rotation. Thus, this technical solution solves the technical problems of unstable counterweight installation and inconvenient adjustment through the shape of the arc-shaped plates and the arrangement of the through holes. The curved design of the arc plate allows it to better fit the flywheel, enhancing installation stability, while the combination of through holes and bolted components provides flexible adjustment, enabling precise adjustment of the excitation force according to actual needs. Compared with existing technologies, this solution not only improves the installation stability of the counterweight but also simplifies the adjustment process, reducing maintenance and operation time costs.

[0040] The specific adjustment process is as follows: When the amplitude of the feeder is too large, the left counterweight 14-6 and the right counterweight 14-5 can be removed at the same time by removing the bolts on the counterweight; when the amplitude of the feeder is too small, the amplitude can be increased by simultaneously increasing the number of the left counterweight 14-6 and the right counterweight 14-5, and then fixing the counterweight with bolts.

[0041] like Figure 4As shown, gear 14-3 is sleeved on the outside of left flywheel 14-4, and multiple pin holes are formed on the outer edge of left flywheel 14-4 and the inner edge of gear 14-3, with pins inserted into the pin holes. Gear 14-3 is circumferentially linked to left flywheel 14-4 via the pins. Specifically, the linkage between gear 14-3 and left flywheel 14-4 is achieved through the cooperation of pin holes and pins. The pin holes can be evenly distributed on the outer edge of left flywheel 14-4 and the inner edge of gear 14-3 to ensure uniform force distribution. The pins can be made of high-strength materials to enhance their wear resistance and fatigue resistance. As a preferred embodiment, a certain gap can be provided between the pins and the pin holes to allow for expansion space under high temperature or vibration conditions, thereby avoiding jamming or loosening due to thermal expansion and contraction. In addition, one end of the pin can be designed as a threaded structure and fixed by a nut to prevent the pin from falling off during operation. To address this, this technical solution utilizes the engagement of a pin hole and a pin shaft to ensure a stable connection between gear 14-3 and the left flywheel 14-4, preventing loosening or wear caused by vibration or uneven force. Through the insertion of the pin shaft into the pin hole, gear 14-3 can perform circumferential linkage relative to the left flywheel 14-4, thereby ensuring the synchronization and stability of the excitation assembly during operation. Compared to existing technologies, this solution not only improves the linkage stability between gear 14-3 and the left flywheel 14-4 but also reduces equipment failures caused by vibration or uneven force, extending the equipment's service life.

[0042] Furthermore, the left counterweight 14-6 is fixedly connected to the left flywheel 14-4, and the outer edge of the left counterweight 14-6 is press-fitted onto the gear 14-3, thereby axially limiting the gear 14-3. Specifically, the left counterweight 14-6 can be fixed to the left flywheel 14-4 by welding, bolting, or riveting to ensure a firm connection. The outer edge of the left counterweight 14-6 can contact the gear 14-3 by press-fitting, interference fit, or snap-fit, thereby axially limiting the gear 14-3. In addition, the outer edge of the left counterweight 14-6 can be designed with a flange or groove structure to enhance its contact area with the gear 14-3 and the limiting effect. As a preferred embodiment, the outer edge of the left counterweight 14-6 can be coated with a wear-resistant material to improve its service life and limiting stability. Therefore, by pressing the outer edge of the left counterweight 14-6 onto the gear 14-3, the gear 14-3 is effectively limited axially, preventing axial displacement caused by vibration or uneven force during operation. This structural design improves the linkage stability between the gear 14-3 and the left flywheel 14-4, ensuring the stability and reliability of the excitation assembly during operation. Compared with the prior art, the technical solution of this application effectively solves the technical problem of unstable axial limiting of the gear 14-3 on the left flywheel 14-4 through simple structural improvements, and has high practicality and reliability.

[0043] like Figure 3As shown, bearing seats 14-8 are provided on both sides of the feeder frame, and the eccentric excitation shaft 14-1 is rotatably mounted on the bearing seats 14-8 via roller bearings 14-9. An excitation assembly sleeve 14-10 is provided between the two bearing seats 14-8, and the eccentric excitation shaft 14-1 is located inside the excitation assembly sleeve 14-10. An oil drainer 14-11 is provided at the lower end of the excitation assembly sleeve 14-10. Specifically, the design of the bearing seats 14-8 provides a stable support point for the eccentric excitation shaft 14-1, ensuring its stability during operation. The use of roller bearings 14-9 effectively reduces friction and improves rotational efficiency. The excitation assembly sleeve 14-10 not only protects the eccentric excitation shaft 14-1, but also achieves automatic lubrication of the bearings through the oil drainer 14-11 at its lower end, thereby extending the service life of the equipment and reducing maintenance requirements. The bearing housing 14-8 can be made of high-strength materials to withstand the enormous stress generated by the eccentric excitation shaft 14-1 during high-speed rotation. The roller bearing 14-9 can be a high-precision bearing to reduce friction and wear, improving equipment operating efficiency. The excitation assembly sleeve 14-10 can be designed as a detachable structure for easy maintenance and replacement. The oil drainer 14-11 can employ an automatic oil draining device to automatically drain the lubricating oil according to its condition, ensuring the bearing is always in a good lubrication state. Therefore, this technical solution, through the combined design of the bearing housing 14-8, roller bearing 14-9, excitation assembly sleeve 14-10, and oil drainer 14-11, effectively solves the technical problems of stable rotation and lubrication of the eccentric excitation shaft 14-1 on the bearing housing 14-8. Compared with existing technologies, this solution not only improves the operational stability and efficiency of the equipment but also extends its service life and reduces maintenance costs, demonstrating significant technical advantages.

[0044] The working principle of this utility model patent linear vibrator feeder is as follows: After the motor 15 is powered on, it drives the eccentric shaft 14-1 and the counterweight in one of the excitation components of the linear vibrator 14 to make circular motion through the V-belt 17, generating centrifugal excitation force. The circular motion excitation component drives the eccentric shaft 14-1 and the counterweight in the second excitation component to make circular motion through the gear 14-3 at the other end. The eccentric shafts 14-1 and the counterweights of the two excitation components make circular motion at the same time, with equal amplitude and opposite direction, thereby realizing that the linear vibrator 14 as a whole makes linear motion, providing reliable excitation force for the feeder.

[0045] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention.

Claims

1. A novel linear vibration feeder, comprising: - a feeder frame; - a linear vibration feeder (14) mounted on the feeder frame; characterized in that: - the linear vibration feeder (14) comprises two groups of vibration assemblies, each group of vibration assemblies comprising a rotating eccentric vibration shaft (14-1), a right flywheel (14-2) and a left flywheel (14-4) fixed on both sides of the eccentric vibration shaft (14-1) and rotating coaxially with the eccentric vibration shaft (14-1); - the gears (14-3) on the left flywheels (14-4) of the two groups of vibration assemblies are meshed and linked together; - a motor (15) drives the two groups of vibration assemblies to move synchronously, the eccentric vibration shafts (14-1) in the two groups of vibration assemblies have equal amplitude and opposite directions, so that the amplitudes of the two groups of vibration assemblies are superimposed in the direction perpendicular to the screen surface and cancelled in the direction parallel to the screen surface.

2. The novel linear vibratory feeder of claim 1, wherein, The feeder frame is constructed in a downwardly inclined manner from the feeding end to the discharging end, and the inclination angle of the axial center line of the two groups of vibration assemblies of the linear vibration feeder (14) is consistent with the inclination angle of the feeder frame.

3. A novel linear vibratory feeder as claimed in claim 1 or 2, wherein, The right flywheel (14-2) and the left flywheel (14-4) of each group of vibration assemblies are respectively detachably eccentrically mounted with a plurality of right counterweights (14-5) and left counterweights (14-6), the right counterweights (14-5) and the left counterweights (14-6) are arranged on the right flywheel (14-2) and the left flywheel (14-4) on both sides of the eccentric part of the eccentric vibration shaft (14-1) in the axial direction; when the eccentric vibration shaft (14-1) rotates, it drives the right flywheel (14-2) and the right counterweights (14-5) thereon, the left flywheel (14-4) and the left counterweights (14-6) thereon to rotate synchronously.

4. The novel linear vibratory feeder of claim 3, wherein, The left counterweights (14-6) and the right counterweights (14-5) are constructed as circular arc plates, through holes are constructed on the circular arc plates, and screw members pass through the through holes to fixedly connect a plurality of circular arc plates on the right flywheel (14-2) or the left flywheel (14-4).

5. The novel linear vibratory feeder of claim 1, wherein, The gear (14-3) is sleeved on the outside of the left flywheel (14-4), and a plurality of pin holes are combined and constructed on the outer edge of the left flywheel (14-4) and the inner edge of the gear (14-3), and a pin shaft is inserted into the pin hole; the gear (14-3) is circumferentially linked relative to the left flywheel (14-4) through the pin shaft.

6. The novel linear vibratory feeder of claim 4, wherein, The left counterweight (14-6) is fixedly connected to the left flywheel (14-4), and the outer edge of the left counterweight (14-6) is press-fitted on the gear (14-3), thereby limiting the gear (14-3) in the axial direction.

7. The novel linear vibratory feeder of claim 1, wherein, Bearing seats (14-8) are arranged on both sides of the feeder frame, the eccentric vibration shaft (14-1) is rotatably arranged on the bearing seat (14-8) through a roller bearing (14-9), and a vibration assembly sleeve (14-10) is arranged between the bearing seats (14-8) on both sides, the eccentric vibration shaft (14-1) is arranged inside the vibration assembly sleeve (14-10), and an oil drain (14-11) is arranged at the lower end of the vibration assembly sleeve (14-10).

8. The novel linear vibratory feeder of claim 1, wherein, The feeder frame comprises a frame body, a wear plate (4) arranged on the upper end surface of the frame body in the conveying direction, and a plurality of wear bars (8) arranged in the conveying direction.

9. The novel linear vibratory feeder of claim 8, wherein, The frame body comprises a right side plate (1), a left side plate (2) connected by a U-shaped cross beam (5), an H-shaped cross beam (6), and a circular tube-shaped cross beam (7), and a back plate (3) connected to the rear end of the right side plate (1) and the left side plate (2); a wear-resistant back plate (10) is arranged on the inner wall of the back plate (3) above the wear plate (4); wear-resistant side plates (9) are arranged on the right side plate (1) and the left side plate (2) above the wear plate (4) and the plurality of wear bars (8); and the wear plate (4), the wear bars (8), the wear-resistant side plates (9), and the wear-resistant back plate (10) are made of high-wear-resistant material.

10. The novel linear shaker feeder of claim 1, characterized by, The feeder frame is provided with front spring groups (11), longitudinal spring groups (12), and rear springs (13), the rear springs (13) are arranged in a staggered manner by multiple groups of springs, the height error of the spring seats is less than 1 mm, the natural frequency is improved, and the service life is prolonged.

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