Grid bar rapping device

Abstract

The invention provides a grid section rapping device, which belongs to the technical field of metallurgical sintering process, and comprises a rack, a driving shaft, a variable frequency driving assembly and a plurality of groups of rapping elements, the driving shaft is horizontally and rotatably arranged on the rack; the trolley passes through the lower part of the driving shaft; the variable-frequency driving assembly is arranged on the rack and used for driving the driving shaft to rotate; the multiple sets of beating elements are arranged on the driving shaft, distributed in the axial direction of the driving shaft and used for beating grate bars on the trolley when the driving shaft rotates. The driving shaft is driven by the variable-frequency driving assembly, the rotating speed of the driving shaft can be accurately adjusted according to actual production requirements, the rotating speed can be adjusted according to the pasting and blocking conditions of the grid sections, and the higher the rotating speed of the driving shaft is, the higher the strength of the beating elements for beating the grid sections is, and the higher the frequency is; the problem that the cleaning effect is poor due to the fact that a traditional heavy hammer vibrator is limited by frequency is effectively solved.

Description

Technical Field

[0001] This application belongs to the technical field of metallurgical sintering processes, and more specifically, relates to a grate bar rapping device. Background Technology

[0002] In the sintering process of the iron and steel metallurgical industry, the sintering machine is a key production equipment, and its operating status directly affects the output, quality, and production continuity of sintered ore. In actual production, the grates on the sintering machine trolley often experience clogging, where fine particles, unburned fuel, and molten phase substances gradually adhere and accumulate in the gaps between the grate bars, resulting in a reduction in effective ventilation area and a significant decrease in air permeability.

[0003] This phenomenon not only severely restricts the uniform distribution of airflow in the sintering bed, affecting combustion efficiency and heat and mass transfer during the sintering process, but also causes uneven sinter structure, reduced strength, and increased return rate, ultimately leading to a double decline in sinter yield and quality.

[0004] A relevant Chinese patent, CN120991611A, discloses a grate bar vibration device for use in sintering machines, relating to the field of sintering machine grate bar cleaning technology. It includes a pull rod, a lever, a fixed pulley, and a pull rope. The pull rod is hinged to a first fixed shaft, with one end being an overlapping end and the other a pulling end. The lever is hinged to a second fixed shaft, with one end being an impact end and the other a counterweight end. The fixed pulley is mounted on the ground. One end of the pull rope is connected to the pulling end, and the other end of the pull rope passes over the fixed pulley and connects to the impact end.

[0005] The aforementioned patent relies on the power of the sintering machine trolley to achieve automatic vibration cleaning of the grate bars through a mechanical structure of pull rods, levers, and ropes. However, due to the limitation of the impact frequency at the lever impact end, some of the ash adhering to the gaps between the grate bars cannot be vibrated down, resulting in a poor treatment effect for grate bar blockage. Summary of the Invention

[0006] The purpose of this application is to provide a grate bar vibration device to solve the technical problem of poor grate bar clogging treatment effect in the prior art.

[0007] To achieve the above objectives, the technical solution adopted in this application is: to provide a grate bar vibrating device, comprising: frame; A drive shaft is horizontally rotatably mounted on the frame, with a trolley passing underneath it; A variable frequency drive assembly, mounted on the frame, is used to drive the drive shaft to rotate; and Multiple sets of striking elements are disposed on the drive shaft, and the multiple sets of striking elements are distributed along the axial direction of the drive shaft. The striking elements are used to strike the grate bars on the trolley when the drive shaft rotates. In conjunction with the above technical solutions, in one possible implementation, the grate bar vibrating device further includes multiple sets of disassembly and assembly structures, each set of such structures corresponding one-to-one with a set of striking elements. The disassembly and assembly structures include: The mounting ring is coaxially mounted on the drive shaft. A mounting mechanism is located between the mounting ring and the drive shaft; and A connecting mechanism is located between the mounting ring and the striking element; The striking element is detachably connected to the mounting ring via the connecting mechanism, and the mounting ring is detachably connected to the drive shaft via the mounting mechanism.

[0008] In one possible implementation, based on the above technical solutions, the drive shaft is provided with an external thread, a limiting groove is formed on the circumferential surface of the drive shaft along its axial direction, the mounting ring is threadedly connected to the drive shaft, and a threaded hole for communicating with the limiting groove is radially formed on the outer circumferential surface of the mounting ring; the mounting mechanism includes: A positioning bolt, threadedly connected to the threaded hole, the inner end of the positioning bolt being inserted into the limiting groove; and A reinforcing component, disposed on the drive shaft, is used to position the positioning bolt so that its inner end is inserted into the limiting groove.

[0009] In one possible implementation, based on the above technical solutions, a reinforcing groove is coaxially formed on one end face of the drive shaft; when the positioning bolt is tightened onto the mounting ring, the inner end of the positioning bolt is located within the reinforcing groove; the reinforcing groove has threads near its opening; the reinforcing assembly includes: The push bolt is threadedly connected to the opening of the reinforcing groove; and A propulsion shaft is disposed within the reinforcing groove and fixed to the inner end of the propulsion bolt; the circumferential surface of the propulsion shaft has a protrusion, the length direction of which is consistent with the axial direction of the propulsion shaft; the protrusion is used to push against the inner end of the positioning bolt outward when the propulsion bolt is screwed into the reinforcing groove.

[0010] In one possible implementation, in conjunction with the above technical solutions, the reinforcing component further includes: A reinforcing spring is fitted onto the push bolt, with one end of the reinforcing spring abutting against the head of the push bolt and the other end abutting against the end face of the drive shaft.

[0011] In one possible implementation, based on the above technical solutions, the positions where the inner end of the positioning bolt and the protrusion come into contact are both arc surfaces.

[0012] In one possible implementation, based on the above technical solutions, the striking element has a socket at one end, and the connecting mechanism includes: A U-shaped plate, used to pass through the socket on the striking element and fasten to the mounting ring; and A movable component extends through the mounting ring and the opening end of the U-shaped plate, and the opening end of the U-shaped plate is detachably and rotatably mounted on the mounting ring via the movable component.

[0013] In one possible implementation, based on the above technical solutions, the striking element is a chain, with one end of the chain through which the U-shaped plate passes; the connecting mechanism further includes: The first elastic pad is disposed on the outer circumferential surface of the mounting ring, directly opposite the U-shaped plate; when the U-shaped plate is fastened to the mounting ring, the end of the chain abuts against the first elastic pad; when the U-shaped plate is fastened to the mounting ring, the end of the chain abuts against the first elastic pad.

[0014] In one possible implementation, based on the above technical solutions, the striking element includes two chains, and two U-shaped plates are respectively located on both sides of the positioning bolt, with one end of each chain through which the U-shaped plate passes; the connecting mechanism further includes: Two extension plates, corresponding one-to-one with the two U-shaped plates, are fixed to the U-shaped plates; and Two second elastic pads correspond one-to-one with the two extension plates and are fixed on the extension plates; The two second elastic pads have through holes. When the two U-shaped plates are fastened to the mounting ring, the through holes on the two second elastic pads are aligned with the threaded holes. The positioning bolt passes through the two second elastic pads and is then tightened onto the mounting ring.

[0015] In one possible implementation, based on the above technical solutions, the frequency converter drive component includes: A variable frequency motor is mounted on the frame; and A gear set is connected between the variable frequency motor and the drive shaft; the variable frequency motor is used to drive the drive shaft to rotate through the gear set.

[0016] The beneficial effects of the grate bar vibrating device provided in this application are as follows: Compared with the prior art, this application drives the drive shaft through a frequency conversion drive component, which can accurately adjust the rotation speed of the drive shaft according to actual production needs. The rotation speed can be adjusted according to the grate bar blockage. The faster the drive shaft rotation speed, the greater the force and frequency of the striking element hitting the grate bar, effectively solving the problem of poor cleaning effect caused by the frequency limitation of traditional heavy hammer vibrators.

[0017] Multiple sets of striking elements are distributed along the axial direction of the drive shaft, which can comprehensively and evenly beat the grates on the trolley. When the trolley passes by, each striking element can act on the grates in turn, covering a larger area and ensuring that each grate is effectively vibrated, further improving the efficiency of removing the attached materials from the grates. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a grate bar vibrating device provided in an embodiment of this application; Figure 2 A schematic diagram of the drive shaft and multiple disassembly / assembly structures provided in an embodiment of this application; Figure 3 This is a schematic diagram of the installation mechanism provided in the embodiments of this application; Figure 4 This is a schematic diagram of the connection mechanism provided in an embodiment of this application; Figure 5 A vertical sectional view of the installation mechanism and connection mechanism provided in the embodiments of this application.

[0020] The labels for the attached figures are as follows: 1. Rack; 2. Drive shaft; 21. Limiting groove; 22. Reinforcing groove; 3. Variable frequency drive assembly; 31. Variable frequency motor; 32. Gear set; 4. Striking components; 41. Chain; 5. Mounting ring; 51. Threaded hole; 6. Mounting mechanism; 61. Positioning bolt; 62. Reinforcing assembly; 621. Push bolt; 622. Push shaft; 6221. Protrusion; 623. Reinforcing spring; 7. Connecting mechanism; 71. U-shaped plate; 72. Moving part; 73. First elastic pad; 74. Extension plate; 75. Second elastic pad; 751. Perforation. Detailed Implementation

[0021] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the described embodiments are only a part of the embodiments of this application, not all of them. The specific embodiments described herein are only used to explain this application and are not intended to limit this application. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] It should be further noted that the accompanying drawings and embodiments of this application mainly describe the concept of this application. Based on this concept, some specific forms and arrangements of connection relationships, positional relationships, power mechanisms, power supply systems and control systems may not be fully described. However, under the premise that those skilled in the art understand the concept of this application, they can implement the above-mentioned specific forms and arrangements in a well-known manner.

[0023] When a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0024] The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself. The terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" 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 application 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 application.

[0025] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways, and the spatial relative descriptions used herein will be interpreted accordingly.

[0026] 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. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, and "several" means one or more, unless otherwise explicitly specified.

[0027] The present application provides a description of a grate bar vibrating device.

[0028] like Figure 1 and Figure 2 As shown, one embodiment of this application provides a grate bar vibrating device, including a frame 1, a drive shaft 2, a frequency conversion drive assembly 3, and multiple sets of striking elements 4; the drive shaft 2 is horizontally rotatably mounted on the frame 1, and a trolley passes under the drive shaft 2.

[0029] The frequency converter drive assembly 3 is mounted on the frame 1 and is used to drive the drive shaft 2 to rotate. Multiple sets of striking elements 4 are mounted on the drive shaft 2 and are distributed along the axial direction of the drive shaft 2. The striking elements 4 are used to strike the grate bars on the trolley when the drive shaft 2 rotates.

[0030] This embodiment provides a grate bar vibrating device. Compared with the prior art, this application uses a frequency conversion drive component 3 to drive the drive shaft 2, which can precisely adjust the rotation speed of the drive shaft 2 according to actual production needs. The rotation speed can be adjusted according to the grate bar blockage. The faster the rotation speed of the drive shaft 2, the greater the force and frequency of the striking element 4 hitting the grate bar, effectively solving the problem of poor cleaning effect caused by the frequency limitation of traditional heavy hammer vibrators.

[0031] Multiple sets of striking elements 4 are distributed along the axial direction of the drive shaft 2, which can beat the grates on the trolley in a comprehensive and uniform manner. When the trolley passes by, each striking element 4 can act on the grates in turn, covering a larger area and ensuring that each grate can be effectively vibrated, which further improves the efficiency of removing the attached materials from the grates.

[0032] like Figures 2 to 3 As shown, this application provides another specific implementation method based on the above-described implementation method as follows: The grate bar rapping device also includes multiple sets of disassembly and assembly structures, which correspond one-to-one with multiple sets of striking elements 4. The disassembly and assembly structures include mounting rings 5, mounting mechanisms 6, and connecting mechanisms 7.

[0033] The mounting ring 5 is coaxially mounted on the drive shaft 2, and the mounting mechanism 6 is connected between the mounting ring 5 and the drive shaft 2; the connecting mechanism 7 is connected between the mounting ring 5 and the striking element 4.

[0034] The striking element 4 is detachably connected to the mounting ring 5 via the connecting mechanism 7, and the mounting ring 5 is detachably connected to the drive shaft 2 via the mounting mechanism 6.

[0035] In actual use, the striking element 4, as the part that directly contacts the grate bars and performs the striking operation, is prone to wear. When the striking element 4 is damaged or reaches the end of its service life, it can be easily removed from the mounting ring 5 and replaced through the connecting mechanism 7, without the need for large-scale disassembly of the entire device, which greatly shortens maintenance time and reduces maintenance costs.

[0036] Meanwhile, the mounting ring 5 is detachably connected to the drive shaft 2 via the mounting mechanism 6. This allows the mounting ring 5 to be removed from the drive shaft 2 when adjustment, maintenance or replacement is required, enabling independent disassembly and replacement of the striking element 4 and the mounting ring 5, ultimately improving the maintainability and reliability of the device.

[0037] like Figures 3 to 4 As shown, this application provides another specific implementation method based on the above-described implementation method as follows: The drive shaft 2 is provided with an external thread, and a limiting groove 21 is opened on the circumferential surface of the drive shaft 2 along its axial direction. The mounting ring 5 is threadedly connected to the drive shaft 2, and a threaded hole 51 for communicating with the limiting groove 21 is opened radially on the outer circumferential surface of the mounting ring 5.

[0038] The mounting mechanism 6 includes a positioning bolt 61 and a reinforcing component 62; the positioning bolt 61 is threaded into the threaded hole 51, and the inner end of the positioning bolt 61 is used to insert into the limiting groove 21; the reinforcing component 62 is mounted on the drive shaft 2 and is used to position the positioning bolt 61 so that its inner end is inserted into the limiting groove 21.

[0039] During the installation of the mounting ring 5, when the positioning bolt 61 is not inserted into the limiting groove 21, the mounting ring 5 can be adjusted along the axial direction of the drive shaft 2. Since the threaded hole 51 needs to be aligned with the limiting groove 21, the pitch of the drive shaft 2 determines the minimum adjustment distance of the mounting ring 5, enabling relatively precise position adjustment to adapt to different production needs and the actual conditions of the trolley.

[0040] After the mounting ring 5 is positioned, tighten the positioning bolt 61 so that its inner end inserts into the limiting groove 21. At this time, the positioning bolt 61 restricts the rotation of the mounting ring 5, firmly fixing the mounting ring 5 to the drive shaft 2. The reinforcement component 62 further improves the stability of the positioning bolt 61, ensuring that the positioning bolt 61 will not loosen during the rotation of the drive shaft 2, thereby ensuring the stable position of the mounting ring 5 and the striking element 4, enabling the device to operate continuously and stably.

[0041] like Figures 3 to 4 As shown, this application provides another specific implementation method based on the above-described implementation method as follows: A reinforcing groove 22 is coaxially provided on one end face of the drive shaft 2. When the positioning bolt 61 is tightened on the mounting ring 5, the inner end of the positioning bolt 61 is located in the reinforcing groove 22. The reinforcing groove 22 has threads near its own opening.

[0042] The reinforcing assembly 62 includes a push bolt 621 and a push shaft 622; the push bolt 621 is threadedly connected to the opening of the reinforcing groove 22; the push shaft 622 is disposed in the reinforcing groove 22 and fixed to the inner end of the push bolt 621; the circumferential surface of the push shaft 622 has a protrusion 6221, the length direction of the protrusion 6221 being consistent with the axial direction of the push shaft 622; the protrusion 6221 is used to push the inner end of the positioning bolt 61 outward when the push bolt 621 is screwed into the reinforcing groove 22.

[0043] After all the mounting rings 5 ​​are fixed to the designated positions on the drive shaft 2, the push bolt 621 is screwed into the reinforcing groove 22. The protrusion 6221 on the push shaft 622 will push outward to tighten the inner end of the positioning bolt 61. Through the self-locking action of the push bolt 621, the protrusion 6221 can continuously tighten the positioning bolt 61, thereby improving the thread friction of the positioning bolt 61.

[0044] Meanwhile, the protrusion 6221 follows the spiral advance of the push bolt 621, reducing the friction between it and the inner end of the positioning bolt 61, making operation more effortless. Moreover, the centrifugal force generated when the drive shaft 2 rotates can also cause the positioning bolt 61 to exhibit an outward centrifugal force in the same direction as the pressing of the protrusion 6221, further improving stability and ensuring the reliability of the device during high-speed operation.

[0045] like Figure 3As shown, this application provides another specific implementation method based on the above-described implementation method as follows: The reinforcing component 62 also includes a reinforcing spring 623, which is sleeved on the push bolt 621. One end of the reinforcing spring 623 abuts against the head of the push bolt 621, and the other end abuts against the end face of the drive shaft 2.

[0046] During the rotation of the drive shaft 2, a certain amount of vibration and impact force will be generated. The elastic effect of the reinforcing spring 623 can absorb these vibrations and impact forces, reduce the impact on the push bolt 621 and the push shaft 622, and prevent the push bolt 621 from loosening due to vibration.

[0047] Meanwhile, strengthening the elastic force of spring 623 can make the threaded connection between the push bolt 621 and the reinforcing groove 22 tighter, increase the thread friction, and further enhance the stability of the push bolt 621 and the push shaft 622. like Figure 4 As shown, this application provides another specific implementation method based on the above-described implementation method as follows: The contact points between the inner end of the positioning bolt 61 and the protrusion 6221 are both arc surfaces.

[0048] The contact method of the arc surface can reduce friction. During the process of screwing the push bolt 621 into the reinforcing groove 22 to tighten the protrusion 6221 against the positioning bolt 61, the smaller friction makes the operation smoother and less labor-intensive, reducing the labor intensity of the operator.

[0049] Meanwhile, the arc-shaped surface design allows for more uniform contact between the positioning bolt 61 and the protrusion 6221, preventing component damage caused by localized stress concentration. During the rotation of the drive shaft 2, the arc-shaped surface better adapts to the relative movement between the positioning bolt 61 and the protrusion 6221, reducing wear and extending the service life of the component.

[0050] like Figure 5 As shown, this application provides another specific implementation method based on the above-described implementation method as follows: The striking element 4 has a socket at one end, and the connecting mechanism 7 includes a U-shaped plate 71 and a movable member 72. The U-shaped plate 71 is used to pass through the socket on the striking element 4 and then fasten to the mounting ring 5. The movable member 72 passes through the mounting ring 5 and the open end of the U-shaped plate 71, and the open end of the U-shaped plate 71 is detachably and rotatably mounted on the mounting ring 5 through the movable member 72.

[0051] Specifically, in this embodiment, the movable part 72 can be connected to the U-shaped plate 71 and the mounting ring 5 by means of a pin or bolt and nut, wherein the pin or bolt is the hinge shaft of the U-shaped plate 71.

[0052] When the striking element 4 is subjected to the reaction force of the grate bar, the movable U-shaped plate 71 allows it to move within a certain range with the striking element 4, dispersing the impact force, reducing the risk of damage to the striking element 4, U-shaped plate 71 and mounting ring 5 due to rigid connection, and extending the service life of the components.

[0053] Meanwhile, the detachable design makes it easier to replace the striking element 4. When the striking element 4 is worn or damaged, the U-shaped plate 71 can be removed from the mounting ring 5 by disassembling the movable part 72, thereby quickly replacing the striking element 4 without the need for complicated disassembly and installation of the entire device, thus improving the maintainability and maintenance efficiency of the device.

[0054] like Figures 4 to 5 As shown, this application provides another specific implementation method based on the above-described implementation method as follows: The striking element 4 is a chain 41, one end of which is through which the U-shaped plate 71 passes; the connecting mechanism 7 also includes a first elastic pad 73, which is located on the outer circumference of the mounting ring 5 directly opposite the U-shaped plate 71.

[0055] When the U-shaped plate 71 is fastened to the mounting ring 5, the end of the chain 41 abuts against the first elastic pad 73; when the U-shaped plate 71 is fastened to the mounting ring 5, the end of the chain 41 abuts against the first elastic pad 73.

[0056] Specifically, the chain 41 in this embodiment can be a high wear-resistant iron chain.

[0057] When the striking element 4 strikes the grate bars, a large impact force is generated. The first elastic pad 73 can buffer the collision force between the chain 41 and the mounting ring 5, reduce the wear of the chain 41 and the mounting ring 5, and reduce the instantaneous impact force directly received by the mounting ring 5, thus protecting the structural integrity of the chain 41 and the mounting ring 5.

[0058] like Figures 4 to 5 As shown, this application provides another specific implementation method based on the above-described implementation method as follows: The striking element 4 includes two chains 41, and two U-shaped plates 71 are respectively located on both sides of the positioning bolt 61. One end of the chain 41 is through which the U-shaped plate 71 passes. The connecting mechanism 7 also includes two extension plates 74 and two second elastic pads 75. The two extension plates 74 correspond one-to-one with the two U-shaped plates 71 and are fixed on the U-shaped plates 71. The two second elastic pads 75 correspond one-to-one with the two extension plates 74 and are fixed on the extension plates 74.

[0059] Among them, the two second elastic pads 75 have through holes 751. When the two U-shaped plates 71 are fastened to the mounting ring 5, the through holes 751 on the two second elastic pads 75 are aligned with the threaded holes 51. The positioning bolts 61 pass through the two second elastic pads 75 and are tightened onto the mounting ring 5.

[0060] The two chains 41 increase the frequency and effectiveness of the beating of the grate bars, improving the efficiency of removing deposits from the grate bars. The second elastic pad 75 can dampen the vibration between the U-shaped plate 71 and the mounting ring 5. When the chain 41 drives the U-shaped plate 71 to move, the second elastic pad 75 is compressed or stretched through the extension plate 74, thereby cooperating with the first elastic pad 73 to achieve vibration damping among the chain 41, U-shaped plate 71 and mounting ring 5.

[0061] Meanwhile, after the positioning bolt 61 is tightened, the second elastic pad 75 can also dampen the positioning bolt 61 and provide outward elastic force, which, in conjunction with the protrusion 6221, further improves the stability of the positioning bolt 61.

[0062] like Figure 1 and Figure 2 As shown, this application provides another specific implementation method based on the above-described implementation method as follows: The variable frequency drive assembly 3 includes a variable frequency motor 31 and a gear set 32; the variable frequency motor 31 is mounted on the frame 1; the gear set 32 ​​is connected between the variable frequency motor 31 and the drive shaft 2; the variable frequency motor 31 is used to drive the drive shaft 2 to rotate through the gear set 32.

[0063] The variable frequency motor 31 can precisely adjust its output power and speed according to actual needs. Under different production conditions, such as different operating stages of the sintering machine or different degrees of grate blockage, the parameters of the variable frequency motor 31 can be adjusted to enable the drive shaft 2 to obtain appropriate speed and torque, thereby achieving precise control over the striking force and frequency of the striking element 4.

[0064] The gear set 32 ​​connects the variable frequency motor 31 and the drive shaft 2, serving to transmit power and change the speed. By rationally designing the transmission ratio of the gear set 32, the output speed and torque of the variable frequency motor 31 can be converted into parameters suitable for the drive shaft 2, ensuring that the drive shaft 2 can rotate stably and reliably.

[0065] Specifically, in this embodiment, a protective cover can be provided on the frame 1 to cover the gear set 32.

[0066] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

[0067] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0068] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

Claims

1. A grate bar vibrating device, characterized in that, include: Rack (1); The drive shaft (2) is horizontally rotatably mounted on the frame (1), and the trolley passes under the drive shaft (2); A variable frequency drive assembly (3) is mounted on the frame (1) and is used to drive the drive shaft (2) to rotate. as well as Multiple sets of striking elements (4) are arranged on the drive shaft (2). The multiple sets of striking elements (4) are distributed along the axial direction of the drive shaft (2). The striking elements (4) are used to strike the grates on the trolley when the drive shaft (2) rotates.

2. The grate bar vibrating device as described in claim 1, characterized in that, It also includes multiple sets of disassembly and assembly structures, each set of the disassembly and assembly structures corresponding one-to-one with the multiple sets of striking elements (4), the disassembly and assembly structures including: The mounting ring (5) is coaxially mounted on the drive shaft (2). The mounting mechanism (6) is located between the mounting ring (5) and the drive shaft (2); and The connecting mechanism (7) is located between the mounting ring (5) and the striking element (4); The striking element (4) is detachably connected to the mounting ring (5) via the connecting mechanism (7), and the mounting ring (5) is detachably connected to the drive shaft (2) via the mounting mechanism (6).

3. The grate bar vibrating device as described in claim 2, characterized in that, The drive shaft (2) is provided with an external thread, and a limiting groove (21) is formed on the circumferential surface of the drive shaft (2) along its axial direction. The mounting ring (5) is threadedly connected to the drive shaft (2), and a threaded hole (51) for communicating with the limiting groove (21) is formed on the outer circumferential surface of the mounting ring (5); the mounting mechanism (6) includes: A positioning bolt (61) is threaded into the threaded hole (51), and the inner end of the positioning bolt (61) is used to insert into the limiting groove (21); and A reinforcing component (62) is provided on the drive shaft (2) for positioning the positioning bolt (61) so that its inner end is inserted into the limiting groove (21).

4. The grate bar vibrating device as described in claim 3, characterized in that, The drive shaft (2) has a reinforcing groove (22) coaxially formed on one end face. When the positioning bolt (61) is tightened on the mounting ring (5), the inner end of the positioning bolt (61) is located in the reinforcing groove (22). The reinforcing groove (22) has threads near its opening. The reinforcing assembly (62) includes: The push bolt (621) is threaded into the opening of the reinforcing groove (22); and A propulsion shaft (622) is disposed in the reinforcing groove (22) and fixed to the inner end of the propulsion bolt (621); the circumferential surface of the propulsion shaft (622) has a protrusion (6221), the length direction of the protrusion (6221) is consistent with the axial direction of the propulsion shaft (622); the protrusion (6221) is used to push against the inner end of the positioning bolt (61) outward when the propulsion bolt (621) is screwed into the reinforcing groove (22).

5. The grate bar vibrating device as described in claim 4, characterized in that, The reinforcing component (62) also includes: A reinforcing spring (623) is sleeved on the push bolt (621). One end of the reinforcing spring (623) abuts against the head of the push bolt (621), and the other end abuts against the end face of the drive shaft (2).

6. The grate bar vibrating device as described in claim 4, characterized in that, The inner end of the positioning bolt (61) and the protrusion (6221) are both in contact with each other on a circular arc surface.

7. The grate bar vibrating device as described in claim 3, characterized in that, The striking element (4) has a socket at one end, and the connecting mechanism (7) includes: A U-shaped plate (71) is used to pass through the socket on the striking element (4) and then fasten to the mounting ring (5); and The movable part (72) passes through the mounting ring (5) and the opening end of the U-shaped plate (71), and the opening end of the U-shaped plate (71) is detachably and rotatably mounted on the mounting ring (5) through the movable part (72).

8. A grate bar vibrating device as described in claim 7, characterized in that, The striking element (4) is a chain (41), one end of which is through which the U-shaped plate (71) passes; the connecting mechanism (7) further includes: The first elastic pad (73) is positioned on the outer periphery of the mounting ring (5) directly opposite the U-shaped plate (71); when the U-shaped plate (71) is fastened to the mounting ring (5), the end of the chain (41) abuts against the first elastic pad (73).

9. A grate bar vibrating device as described in claim 8, characterized in that, The striking element (4) includes two chains (41), and the U-shaped plate (71) has two of them, located on both sides of the positioning bolt (61), with one end of the chain (41) through which the U-shaped plate (71) passes; the connecting mechanism (7) further includes: Two extension plates (74) correspond one-to-one with the two U-shaped plates (71) and are fixed to the U-shaped plates (71); and Two second elastic pads (75) correspond one-to-one with the two extension plates (74) and are fixed on the extension plates (74); Among them, the two second elastic pads (75) are provided with through holes (751). When the two U-shaped plates (71) are fastened to the mounting ring (5), the through holes (751) on the two second elastic pads (75) are directly opposite to the threaded holes (51). The positioning bolt (61) passes through the two second elastic pads (75) and is tightened on the mounting ring (5).

10. A grate bar vibrating device as described in claim 1, characterized in that, The variable frequency drive component (3) includes: A variable frequency motor (31) is mounted on the frame (1); and A gear set (32) is connected between the variable frequency motor (31) and the drive shaft (2); the variable frequency motor (31) is used to drive the drive shaft (2) to rotate through the gear set (32).

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