A solid waste screening device

Abstract

A solid waste screening device includes a screen box, a frame, and multiple independent screening components. The screening components are arranged side-by-side in the front-to-back direction within the accommodating space of the screen box. Each screening component includes a bouncing screen plate and a drive mechanism. The bouncing screen plate extends inclined in the left-to-right direction. The drive mechanism is connected between the screen box and the bouncing screen plate, driving the bouncing screen plate to perform reciprocating circular motion in both the up-down and left-to-right directions. At least two bouncing screen plates in each screening component have a height difference in the up-down direction and a distance difference in the left-to-right direction during movement. Based on the independently arranged multiple screening components, a decentralized power design is achieved, ensuring that the multiple bouncing screen plates remain structurally and physically independent. This not only effectively reduces the load capacity requirements of the power components and helps improve the power output of the drive mechanism and the stability of the bouncing screen plate movement, but also makes the disassembly, maintenance, and replacement of the screening components more convenient and faster.

Description

Technical Field

[0001] This application relates to the field of solid waste treatment technology, specifically to a solid waste screening device. Background Technology

[0002] With the continuous increase in the amount of solid waste generated, such as municipal solid waste, construction waste, and general industrial waste, screening has become a crucial step in the resource recycling of solid waste. Among these, the bouncing screen is a widely used piece of equipment for automatic screening of solid waste. It works by taking advantage of differences in the size, density, and shape of the materials to be screened, causing them to collide and bounce on the screen plate, resulting in different speeds and trajectories, thus separating them from each other.

[0003] Currently, there are two main types of driving methods for bouncing screening equipment on the market. One type uses a main shaft to connect multiple eccentric wheels to drive all screen plates to bounce, while the other type uses a crankshaft mechanism to drive all screen plates to bounce. Although these driving methods can enhance the structural integration of the screening equipment, they have drawbacks such as high processing difficulty, time-consuming and labor-intensive disassembly and assembly, and poor screen plate operation stability. Summary of the Invention

[0004] The main technical problem addressed by this application is to provide a solid waste screening device that features stable operation and easy disassembly and maintenance.

[0005] One embodiment provides a solid waste screening device, comprising:

[0006] A sieve box, wherein the interior of the sieve box has an accommodating space;

[0007] A frame for supporting the screen box, the frame being disposed below the screen box;

[0008] Multiple independent screening components are arranged side by side in the accommodating space along the front-to-back direction. Each screening component includes a bouncing screen plate and a driving mechanism. The bouncing screen plate extends obliquely in the left-to-right direction. The driving mechanism is connected between the screen box and the bouncing screen plate and is used to drive the bouncing screen plate to perform reciprocating circular motion relative to the screen box in the up-down direction and the left-to-right direction.

[0009] Among them, at least two of the sieving components have a height difference in the vertical direction and / or a distance difference in the horizontal direction between the bouncing screen plates during movement.

[0010] In one embodiment, the driving mechanism includes a driving member, a transmission shaft, and an eccentric member. The transmission shaft extends along the front-rear direction, and the eccentric member is connected between the transmission shaft and the bouncing screen plate. The driving member is fixedly disposed relative to the screen box and is used to drive the transmission shaft to rotate the eccentric member, so that the eccentric member drives the bouncing screen plate to perform reciprocating circular motion.

[0011] In one embodiment, the eccentric elements of any two adjacent screening components have a phase difference of 180°.

[0012] In one embodiment, the drive mechanism further includes a reduction gearbox fixedly disposed relative to the screen box. The reduction gearbox has one power input shaft and two power output shafts. The power input shaft is located on one side of the reduction gearbox in the left-right direction. The power end of the drive member is coupled to the power input shaft. The two power output shafts are located on opposite sides of the reduction gearbox in the front-back direction. The eccentric member corresponds to the power input shaft one by one.

[0013] The eccentric component is connected to the corresponding power input shaft via the transmission shaft, or the power output shaft includes the transmission shaft.

[0014] In one embodiment, the number of gearboxes is set to two, and the two gearboxes are arranged at intervals in the left-right direction; wherein:

[0015] The number of the driving components is set to two, and the two driving components are connected to the two reduction gearboxes in a one-to-one correspondence.

[0016] Alternatively, the drive unit may include a dual-axis motor located between the two gearboxes, with the two power ends of the dual-axis motor respectively connected to the power input shaft of the corresponding gearbox.

[0017] In one embodiment, the screening device further includes a lubrication source and / or a cooling source; wherein:

[0018] The lubrication source, the gearbox, and the drive unit are connected in series via a first circulation pipeline. The lubrication source is used to provide and drive the lubricating medium to circulate among the gearbox, the drive unit, and the lubrication source.

[0019] The cooling source and the gearbox are connected in series via a second circulation pipeline. The cooling source is used to provide and drive the cooling medium to circulate between the gearbox and the cooling source.

[0020] In one embodiment, the speed reducer includes a housing and a speed reduction structure having the power input shaft and the power output shaft. The housing has an independent first chamber and a second chamber. The speed reduction structure is disposed in the first chamber. The first circulation pipe is connected to the first chamber, and the second circulation pipe is connected to the second chamber.

[0021] In one embodiment, the drive mechanism further includes a support base; the support base is detachably connected to the screen box and located below the bouncing screen plate; the drive component and the reduction gearbox are fixed to the support base and located between the support base and the bouncing screen plate; a pipe-laying space is formed inside the support base, and a portion of the first circulation pipe and a portion of the second circulation pipe are disposed in the pipe-laying space.

[0022] In one embodiment, the bouncing screen plate has a screen portion, a mounting portion, and a comb portion. The screen portion extends obliquely in the left-right direction, and the comb portion protrudes from the top surface of the screen portion and extends obliquely in the left-right direction. The mounting portion protrudes from the bottom surface of the screen portion and is used for coupling connection with the power end of the drive mechanism.

[0023] In one embodiment, the number of comb teeth is set to one or more, and the multiple comb teeth are arranged side by side with intervals along the front-back direction; and / or the number of mounting parts is set to one or two, the two connecting parts are spaced apart from each other along the front-back direction, and the driving mechanism is disposed between the two mounting parts.

[0024] In one embodiment, the drive mechanism is located below the screen section, and a protective cover is provided between the drive mechanism and the screen section. The protective cover is used to cover at least a portion of the drive mechanism and to guide the material falling through the screen section to avoid the drive mechanism.

[0025] In one embodiment, the screen box is inclined relative to the frame in the left-right direction, and the inclination angle of the screen box is the same as the inclination angle of the bouncing screen plate.

[0026] In one embodiment, one end of the screen box in the left-right direction is hinged to the frame, and the other end of the screen box in the left-right direction is connected to the frame via an adjustment mechanism; the adjustment mechanism can adjust the relative position between the screen box and the frame in the up-down direction, thereby adjusting the tilt angle of the screen box and the bouncing screen plate.

[0027] In one embodiment, the top of the screen box is provided with a feeding structure, and the bottom of the screen box is provided with a first discharge structure, a second discharge structure and a third discharge structure arranged sequentially and independently along the left and right direction. The feeding structure, the first discharge structure, the second discharge structure and the third discharge structure are respectively connected to the accommodating space.

[0028] The feeding structure is used to input materials into the screening component so that the screening component can screen the materials into 3D materials, fine materials and 2D materials; the first discharge structure is used to output 3D materials, the second discharge structure is used to output fine materials and the third discharge structure is used to output 2D materials.

[0029] The solid waste screening equipment according to the above embodiment includes a screen box, a frame, and multiple independent screening components. The multiple screening components are arranged side-by-side in the front-to-back direction within the accommodating space of the screen box. Each screening component includes a bouncing screen plate and a drive mechanism. The bouncing screen plate extends inclined in the left-to-right direction. The drive mechanism is connected between the screen box and the bouncing screen plate, driving the bouncing screen plate to perform reciprocating circular motion in both the up-down and left-to-right directions. At least two bouncing screen plates in each screening component have a height difference in the up-down direction and a distance difference in the left-to-right direction during movement. Based on the multiple independently arranged screening components, a decentralized power design is achieved, ensuring that the multiple bouncing screen plates remain structurally and physically independent. This not only effectively reduces the load capacity requirements of the power components and helps improve the power output of the drive mechanism and the stability of the bouncing screen plate's movement, but also makes the disassembly, maintenance, and replacement of the screening components more convenient and faster. Attached Figure Description

[0030] Figure 1 This is a three-dimensional structural diagram of a screening device according to one embodiment.

[0031] Figure 2 This is a schematic diagram of the cross-sectional structure of a screening device according to one embodiment.

[0032] Figure 3 This is a schematic diagram of the structural layout of the screening components in a screening device according to one embodiment.

[0033] Figure 4 This is a schematic diagram of the motion state of the screening component in a screening device according to an embodiment, viewed from the left and right sides.

[0034] Figure 5 This is a schematic diagram of the motion state of the screening component in a screening device according to an embodiment, viewed from a top-bottom perspective.

[0035] Figure 6 This is a schematic diagram of the structure of the screening component in a screening device according to one embodiment (I).

[0036] Figure 7 This is a schematic diagram (II) of the structure of the screening component in a screening device according to one embodiment.

[0037] Figure 8 This is an exploded view of the structure of a screening component in a screening device according to one embodiment.

[0038] Figure 9 This is a schematic diagram of the drive mechanism in a screening device according to one embodiment.

[0039] Figure 10 This is a schematic diagram of the piping system for lubricating and cooling media in a screening device according to one embodiment.

[0040] In the picture:

[0041] 100. Bounce screen plate; 110. Screen section; 120. Mounting section; 130. Comb section; 200. Drive mechanism; 210. Drive component; 220. Transmission shaft; 230. Eccentric component; 240. Gearbox; 241. First chamber; 242. Second chamber; 250. Support base; 251. Pipeline space; 260. First circulation pipeline; 270. Second circulation pipeline; 280. Protective cover; 300. Screen box; 310. Accommodation space; 320. Feeding structure; 330. First discharge structure; 340. Second discharge structure; 350. Third discharge structure; 400. Frame; 500. Lubrication source; 600. Cooling source; 700. Adjustment mechanism. Detailed Implementation

[0042] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0043] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can be rearranged or adjusted in a manner obvious to those skilled in the art. Therefore, the various orders in the specification and drawings are only for the clear description of a particular embodiment and do not imply a necessary order, unless otherwise stated that a particular order must be followed.

[0044] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0045] Please see Figure 1 and Figure 2 This application provides a solid waste screening device that can be used to screen solid waste such as household waste, construction waste, and general industrial waste, achieving the separation of 3D materials, fine materials, and 2D materials in the solid waste. 3D materials typically refer to heavier, three-dimensional, and easily rolling materials on the screen, such as plastic bottles, wood, boxes, and cans. Fine materials typically refer to materials with a particle size smaller than the screen aperture, such as sand and gravel particles. 2D materials typically refer to lighter, sheet-like materials on the screen, such as plastic films, packaging bags, paper scraps, and fabrics. The screening device includes a screening assembly, a screen box 300, a frame 400, and other functional components as needed (e.g., a control device for controlling the start and stop of the screening assembly), which will be described in detail below.

[0046] To describe the screening equipment provided in the embodiments of this application more clearly and in detail, the structural architecture or working principle of the screening equipment is defined in this document as front-back direction, left-right direction and up-down direction; in some scenarios, the front-back direction, left-right direction and up-down direction constitute a spatial rectangular coordinate system with the screening equipment as the reference.

[0047] Please see Figures 1 to 3 The frame 400 is located below the screen box 300, mainly providing structural support and assembly space for functional components such as the screen box 300. The frame 400 enables the overall transportation and placement of the screening equipment. The screen box 300 has an internal accommodating space 310, within which the screening components are located. The screening components separate the materials fed into the screen box 300, allowing the separated 3D materials, fine materials, and 2D materials to fall and be discharged from the screen box 300.

[0048] Please see Figures 3 to 7The screening components are configured in multiple ways, such as two, three, four, five, or more. These screening components are arranged side-by-side in the front-to-back direction within the accommodating space 310 and are independent of each other. It is understood that "independent" here means that there is no direct structural connection between the screening components; each screening component can be disassembled, moved, and operated as an independent functional unit. Each screening component includes a cooperating bouncing screen plate 100 and a drive mechanism 200. The bouncing screen plate 100 extends obliquely in the left-right direction. For example, when the screening equipment is placed in the work area, the bouncing screen plate 100 extends approximately in the left-right direction and is obliquely inclined in the up-down direction relative to the ground. Alternatively, the bouncing screen plate 100 extends in the left-right direction, and the height of the left end of the bouncing screen plate 100 is lower than the height of the right end. The drive mechanism 200 is connected between the screen box 300 and the bouncing screen plate 100. It is mainly used to drive the bouncing screen plate 100 to make reciprocating circular motion relative to the screen box 300 in the up-down and left-right directions. That is, the motion of the bouncing screen plate 100 is manifested as bouncing and undulating vibration relative to the screen box 300.

[0049] For example, please refer to Figures 6 to 8 The bouncing screen plate 100 has a screen section 110, a mounting section 120, and a comb section 130. The screen section 110 is a mesh plate structure with numerous screen holes extending obliquely in the left-right direction. The comb section 130 protrudes from the top surface of the screen section 110 and extends obliquely in the left-right direction. The number of comb sections 130 can be one or more, and the comb sections 130 can be arranged side-by-side at intervals in the front-back direction. For example, the number of comb sections 130 can be three, located at the center of the screen section 110 in the front-back direction and on the front and back sides, respectively. The mounting section 120 protrudes from the bottom surface of the screen section 110 and is coupled to the power end of the drive mechanism 200. The number of mounting sections 120 can be one or two, with two mounting sections 120 spaced apart from each other in the front-back direction. For example, two mounting sections 120 are located on the front and back sides of the bottom surface of the screen section 110, and the drive mechanism 200 can be located between the two mounting sections 120.

[0050] Of course, the bouncing screen plate 100 can also adopt other suitable structures, which will not be elaborated here.

[0051] For example, please refer to Figures 6 to 9The drive mechanism 200 includes a drive component 210, a transmission shaft 220, and an eccentric component 230. The transmission shaft 220 extends in the front-to-back direction. The eccentric component 230 may be a structural component such as an eccentric wheel or eccentric block connected to one end or opposite ends of the transmission shaft 220. The eccentric component 230 is connected to the bouncing screen plate 100 (specifically, the mounting part 120). It can be understood that the connection position between the eccentric component 230 and the bouncing screen plate 100 is offset from the rotation axis of the transmission shaft 220. The drive component 210 may include a power device such as a motor fixedly arranged relative to the screen box 300. The power end of the drive component 210 is coupled to the transmission shaft 220 to drive the transmission shaft 220 to rotate the eccentric component 230. Based on the eccentric connection relationship established between the eccentric component 230 and the transmission shaft 220 and the bouncing screen plate 100, the eccentric component 230 causes the bouncing screen plate 100 to perform reciprocating circular motion in the up-down and left-right directions.

[0052] Of course, the drive mechanism 200 can also adopt other suitable structures, as long as the purpose is to drive the corresponding bouncing screen plate 100 to perform reciprocating circular motion, which will not be elaborated here.

[0053] Based on the characteristic of multiple screening components being set independently, each bouncing screen plate 100 can independently perform reciprocating circular motion under the drive of its corresponding drive mechanism 200. By setting the motion sequence of each bouncing screen plate 100, any two adjacent bouncing screen plates 100 can have a height difference H in the vertical direction during the motion (see [reference]). Figure 4 ) and the distance difference L in the left and right directions (see Figure 5 Specifically, this is manifested in the alternating bouncing of any two adjacent bouncing screen plates 100. For example, there can be a phase difference of 180° between the eccentric parts 230 of any two adjacent screening components, so that when one of the two adjacent bouncing screen plates 100 moves to the left and downward, the other moves to the right and upward.

[0054] Thus, with the coordinated reciprocating circular motion of multiple bouncing screen plates 100, the material fed into the screen box 300 is broken up and dispersed to each bouncing screen plate 100. At the same time, with the reciprocating circular motion of the bouncing screen plates 100, fine materials fall through the screen holes of the bouncing screen plates 100 (e.g., screen mesh 110), 3D materials are gradually conveyed towards the lower end of the bouncing screen plates 100 and eventually leave the bouncing screen plates 100, while 3D materials are gradually conveyed towards the higher end of the bouncing screen plates 100 due to the hooking action of the comb teeth 120 and eventually leave the bouncing screen plates 100, thereby achieving the screening and separation of 3D materials, fine materials and 2D materials.

[0055] For example, please refer to Figure 2 and Figure 3The screen box 300 has a feeding structure 320 at the top in the vertical direction and a first discharge structure 330, a second discharge structure 340, and a third discharge structure 350 arranged in sequence in the left and right direction and independent of each other at the bottom in the vertical direction. The feeding structure 320, the first discharge structure 330, the second discharge structure 340, and the third discharge structure 350 are respectively connected to the accommodating space 310. For example, the feeding structure 320 and each discharge structure can be an open structure.

[0056] In this way, materials can be input into the screening components inside the screen box 300 via the feeding structure 320. For example, the material to be processed can be conveyed above the feeding structure 320 and then fall onto the bouncing screen plate 100 of the screening component, thereby realizing the input of materials. The first discharge structure 330 can be located on the output path of 3D materials, for example, located below or to the lower left of the multiple bouncing screen plates 100 in the left-right direction, for discharging 3D materials from the screen box 300; the second discharge structure 340 can be located on the output path of fine materials, for example, located below the multiple bouncing screen plates 100, for discharging fine materials from the screen box 300; the third discharge structure 350 can be located in the output path of 2D materials, for example, located below or to the lower right of the multiple bouncing screen plates 100 in the left-right direction, for discharging 2D materials from the screen box 300.

[0057] It should be noted that, Figure 2 The bold dashed line with an arrow indicates the approximate conveying direction or path of 3D and 2D materials.

[0058] In summary, compared with the existing technology where multiple screen plates share the same drive system, the screening equipment provided in this application embodiment achieves separation of the power and movement of the screen plates by independently setting multiple screening components.

[0059] On the one hand, since each bouncing screen plate 100 is driven independently by its corresponding drive mechanism 200, it can effectively reduce the load capacity requirements of the power device and related components, help improve the power output of the drive mechanism 200 and the stability of the bouncing screen plate 100 movement, and provide support for improving the screening efficiency and screening accuracy of the screening equipment; on the other hand, the power output or working mode of the screening equipment is adjustable. For example, screening components with different load capacities can be replaced according to actual working conditions; furthermore, the motion sequence between multiple bouncing screen plates 100 can be adjusted based on the drive mechanism 200, thereby realizing the adjustment of parameters such as vibration amplitude and motion frequency of the entire screen plate unit.

[0060] On the other hand, since each screening component is installed relatively independently within the screen box 300, the screening components can be installed in a detachable manner within the screen box 300. This not only facilitates the quick and easy disassembly, assembly, and maintenance of the screening components, reducing the difficulty and cost of disassembly and maintenance of the screening equipment, but also allows for the replacement of screening components according to actual working conditions, thus broadening the applicable scenarios and scope of the gate screening equipment. For example, by replacing the spring screen plate 100 with different apertures, the screening accuracy requirements in different scenarios can be met. Furthermore, by combining multiple screening components with different apertures within the screen box 300, various types of solid waste can be adapted.

[0061] In other embodiments, based on the relatively independent structural and motion forms of multiple screening components, the multiple screening components can also be divided into multiple groups by selecting and setting the motion sequence of each bouncing screen plate 100. Two adjacent bouncing screen plates 100 in the same group can move synchronously (i.e., there is no height difference H in the vertical direction or no distance difference L in the horizontal direction), thereby meeting different working conditions.

[0062] In some embodiments, please refer to Figure 8 and Figure 9 The drive mechanism 200 includes a drive member 210 and two reduction gearboxes 240 fixedly disposed relative to the screen box 300. The two reduction gearboxes 240 are arranged at intervals in the left-right direction, and the drive member 210 is disposed between the two reduction gearboxes 240. Each reduction gearbox 240 has a power input shaft and two power output shafts. The power input shaft of the reduction gearbox 240 is located on the side of the reduction gearbox 240 facing the drive member 210 in the left-right direction, and the two power output shafts of the reduction gearbox 240 are located on opposite sides of the reduction gearbox 240 in the front-back direction. Each power output shaft corresponds to an eccentric member 230. Specifically, the eccentric member 230 and the corresponding power output shaft can be connected through a corresponding transmission shaft 220, or the transmission shaft 220 can be part of the power output shaft, and the eccentric member 230 is directly connected to the corresponding power output shaft.

[0063] Regarding the drive unit 210, it may include a dual-axis motor, with each of its two power ends connected to the power input shaft of the corresponding gearbox 240. Alternatively, the drive unit 210 may employ other power output devices or mechanisms with two power ends.

[0064] In this way, a stable and balanced connection relationship can be established between the four eccentric members 230 in the entire drive mechanism 200 and the corresponding bouncing screen plate 100. For example, the eccentric member 230 is connected to the mounting part 120 of the bouncing screen plate 100. This ensures that the bouncing screen plate 100 can perform reciprocating circular motion smoothly, and the output speed of the drive member 210 can be adjusted by the reduction gearbox 240 to improve the stability of power transmission and ensure that the bouncing screen plate 100 performs reciprocating circular motion at a more suitable frequency.

[0065] In some embodiments, the two power ends of the dual-axis motor can be indirectly connected to the power input shaft of the corresponding gearbox 240 via couplings. This can appropriately increase the lateral spacing between the two gearboxes 240, thereby accommodating the length of the bouncing screen plate 100 and achieving stable support and smooth drive for the bouncing screen plate 100. Of course, based on actual needs, the power ends of the dual-axis motor can also be directly connected to the power input shaft of the gearbox 240.

[0066] In some embodiments, the bouncing screen plate 100 can be detachably connected to the drive mechanism 200. For example, the mounting part 120 and the corresponding eccentric part 230 can be connected by plugging or snapping, so that bouncing screen plates with different apertures can be replaced according to actual needs (such as screening accuracy requirements).

[0067] In some embodiments, the number of reduction gearboxes 240 can also be set to one, and the drive component 210 can be a single-axis motor or other suitable power device; wherein, the reduction gearbox 240 can be set near or at the center of the bouncing screen plate 100 in the left-right direction, so that by using the two eccentric components 230 located on the front and rear sides of the reduction gearbox 240, a stable and balanced connection relationship can be established between the bouncing screen plate 100 and the drive mechanism 200, so that the screening component can meet the usage requirements of some scenarios.

[0068] In some embodiments, the number of drive components 210 and reduction gearboxes 240 can both be set to two. For example, the drive component 210 can be a single-axis motor or other suitable power device. The two drive components 210 are connected to the two reduction gearboxes 240 in a one-to-one correspondence. Thus, by arranging the two sets of drive components 210 and reduction gearboxes 240 at different positions in the left and right directions of the bouncing screen plate 100, the stable support of the bouncing screen plate 100 can be achieved and the bouncing screen plate 100 can be driven to perform reciprocating circular motion smoothly.

[0069] In some embodiments, please refer to Figure 1 and Figure 10The screening equipment also includes a lubrication source 500, which is located outside the screen box 300, such as on the frame 400 or placed within the operating area of ​​the screening equipment. The lubrication source 500 may include a container for storing a lubricating medium (e.g., lubricating oil), a pump for driving the flow of the lubricating medium, etc. For more details, please refer to... Figure 1 The lubrication source 500, the gearbox 240 and the drive unit 210 are connected in series through the first circulation pipeline 260. For example, after the first circulation pipeline 260 connects the two gearboxes 240 and the drive unit 210 in series, it is then connected to the lubrication medium inlet and outlet of the lubrication source 500.

[0070] In this way, by using the lubrication source 500 to drive the lubricating medium to circulate between the lubrication source 500, the reduction gearbox 240, and the drive component 210, the lubricating medium can be supplied or replenished to the key components of the drive mechanism 200 (such as bearings and gears) for a long time or intermittently. This ensures that the drive mechanism 200 can work stably for a long time, providing support for improving the stability of the bouncing screen plate 100 movement and the service life of the drive mechanism 200. At the same time, during the circulation of the lubricating medium, the temperature of the lubricating medium can also be reduced, thereby solving the problems of heat dissipation and insufficient lubrication during long-term operation of the screening equipment.

[0071] In some embodiments, please refer to Figure 1 and Figure 10 The screening equipment also includes a cooling source 600, which is located outside the screen box 300, such as on the frame 400 or placed in the working area of ​​the screening equipment. The cooling source 600 may include a container for storing cooling medium (such as water or other coolant), a pump body for driving the flow of cooling medium, etc. Specifically, the cooling source 600 and the reduction gearbox 240 are connected in series through a second circulation pipe 270. For example, after the second circulation pipe 270 connects the two reduction gearboxes 240 in series, it is then connected to the cooling medium inlet and outlet of the cooling source 600.

[0072] In this way, by using the cooling source 600 to drive the cooling medium to circulate between the cooling source 600 and the gearbox 240, the heat generated by the gearbox 240 during operation can be dissipated in a timely manner, achieving efficient heat dissipation of the gearbox 240.

[0073] For example, please refer to Figure 10The gearbox 240 may include a housing and a reduction structure. The reduction structure can be understood as a collection of related components disposed inside the gearbox 240 to realize all or at least part of the functions of the gearbox 240. For example, the reduction structure may include a gear set. In addition, the power input shaft and power output shaft of the gearbox 240 can be understood as components of the reduction structure, that is, the reduction structure has a power output shaft and a power input shaft. The housing has an independent first chamber 241 and a second chamber 242. For example, the second chamber 242 may be located below the first chamber 241 in the vertical direction and isolated from the first chamber 241. The reduction structure is disposed in the first chamber 241.

[0074] The second circulation pipe 270 is connected to the second chamber 242. For example, the second circulation pipe 270 connects the second chamber 242 of the two gearboxes 240 in series with the cooling source 600. The first circulation pipe 260 is connected to the first chamber 241. For example, the first circulation pipe 260 connects the first chamber 241 of the two gearboxes 240, the space in the drive unit 210 for containing the lubricating medium, and the lubricating source 500 in series.

[0075] Regarding the gearbox 240, the first chamber 241 and the second chamber 242 can isolate the lubricating medium from the cooling medium. The lubricating medium flows in and out of the first chamber 241 to lubricate the reduction structure. The cooling medium flowing in and out of the second chamber 242 can remove the heat generated during the operation of the reduction structure, thereby achieving efficient heat dissipation of the gearbox 240 and renewal and cooling of the lubricating medium, ensuring that the gearbox 240 can operate stably for a long time.

[0076] It should be noted that, Figure 10 The bold solid line with an arrow indicates the approximate flow path of the first circulation line 260 or the lubricating medium. Figure 10 The bold dashed line with an arrow indicates the second circulation pipe 270 or the approximate flow path of the cooling medium.

[0077] It should be noted that in some scenarios, the lubrication source 500 or the cooling source 600 can be a component of the screening equipment; in other scenarios, the lubrication source 500 or the cooling source 600 can also be a functional device used in conjunction with the screening equipment. For example, before the screening equipment is applied, the lubrication source 500 can be connected via the first circulation pipe 260, or the cooling source 600 can be connected via the second circulation pipe 270. Furthermore, the lubrication system built based on the first circulation pipe 260 and the cooling system built based on the second circulation pipe 270 can be selectively configured according to actual needs.

[0078] In some embodiments, please refer to Figures 6 to 9 and combined Figure 3The drive mechanism 200 also includes a support base 250, and the drive component 210 and the gearbox 240 can be fixed on the support base 250. In this way, the drive mechanism 200 and the bouncing screen plate 100 can be combined together by means of the support base 250 and the eccentric component 230 to form a relatively complete and independent screening component. The support base 250 can be located below the bouncing screen plate 100, while the drive component 210 and the gearbox 240 are located between the support base 250 and the bouncing screen plate 100.

[0079] Thus, the screening assembly is installed inside the screen box 300 with the help of the support base 250. For example, the support base 250 can be connected to the screen box 300 by means of screw locking, snap-fit ​​or other detachable methods, so as to disassemble, maintain or replace the screening assembly.

[0080] In some embodiments, please refer to Figure 7 and Figure 9 The support base 250 has a pipe-laying space 251 inside. At least a portion of the first circulation pipe 260 and the second circulation pipe 270 can be arranged in the pipe-laying space 251. For example, the first circulation pipe 260 or the second circulation pipe 270 can be led out from the pipe-laying space 251 and connected to the drive unit 210, the gearbox 240, the lubrication source 500 and the cooling source 600, etc.

[0081] By arranging the first circulation pipe 260 and the second circulation pipe 270 inside the support base 250, the structural compactness and appearance of the drive mechanism 200 and even the entire screening assembly can be effectively improved, and the circulation pipes can be structurally protected to prevent the circulation pipes from being damaged by the material falling from the bouncing screen plate 100.

[0082] In some embodiments, please refer to Figure 6 and Figure 8 Each screening component also includes a protective cover 280, which is disposed between the drive mechanism 200 and the bouncing screen plate 100. The protective cover 280 is mainly used to cover the drive mechanism 200 and guide the material falling through the bouncing screen plate 100 to avoid the drive mechanism 200. In this way, it can provide structural protection for at least part of the drive mechanism 200 and prevent the material from accumulating between the drive mechanism 200 and the bouncing screen plate 100, thus avoiding affecting the screening efficiency and effect.

[0083] For example, please refer to Figure 8The drive mechanism 200 is located below the bouncing screen plate 100 (specifically the screen section 110); the protective cover 280 is connected to the support base 250 to form a protective space between them to accommodate the drive component 210 and related components (such as couplings); wherein, the protective cover 280 and the screen section 110 maintain a certain distance in the vertical direction, and the top surface of the protective cover 280 can be inclined downward from the center of the protective cover 280 in the front-back direction; in this way, fine materials falling from the screen section 110 can fall towards the front and back sides of the drive mechanism 200 under the guidance of the top surface of the protective cover 280, thereby preventing materials from accumulating in the drive mechanism 200 and ensuring the normal operation of the drive component 210, etc.

[0084] In some embodiments, please refer to Figure 1 and Figure 2 The screen box 300 is inclined relative to the frame 400 in the left-right direction, for example, the screen box 300 extends inclined in the left-right direction; or, the inclination angle of the screen box 300 can be the same as the inclination angle of the bouncing screen plate 100 (e.g., 5-15°). By inclining the screen box 300, the inclination arrangement of the screen box 300 and the bouncing screen plate 100 or the screening assembly as a whole can be adapted, which not only facilitates the assembly and disassembly of the screening assembly and the screen box 300, but also allows the inclination angle of the bouncing screen plate 100 to be adjusted according to actual needs by adjusting the inclination angle of the screen box 300.

[0085] For example, please refer to Figure 1 and Figure 2 One end of the screen box 300 in the left-right direction (e.g., the lower end) is hinged to the frame 400, and the other end of the screen box 300 in the left-right direction (e.g., the higher end) is connected to the frame 400 via an adjusting mechanism 700. The adjusting mechanism 700 can be a structure that can be adjusted in size in the up-down direction, or it can be a mechanism that can adjust the relative position between the screen box 300 and the frame 400 in the up-down direction.

[0086] By utilizing the hinged relationship between the screen box 300 and the frame 400, the screen box 300 and the screening components inside the screen box 300 can be driven to rotate relative to the frame 400 around the hinge axis through the adjustment mechanism 700, thereby adjusting the tilt angle of the screen box 300 and the bouncing screen plate 100 within a preset angle range to meet the requirements of different working conditions.

[0087] The above examples illustrate this application only to aid understanding and are not intended to limit its scope. Those skilled in the art to which this application pertains can make various simple deductions, modifications, or substitutions based on the ideas presented.

Claims

1. A solid waste screening device, characterized in that, include: A sieve box, wherein the interior of the sieve box has an accommodating space; A frame for supporting the screen box, the frame being disposed below the screen box; Multiple independent screening components are arranged side by side in the accommodating space along the front-to-back direction. Each screening component includes a bouncing screen plate and a driving mechanism. The bouncing screen plate extends obliquely in the left-to-right direction. The driving mechanism is connected between the screen box and the bouncing screen plate and is used to drive the bouncing screen plate to perform reciprocating circular motion relative to the screen box in the up-down direction and the left-to-right direction. Among them, at least two of the sieving components have a height difference in the vertical direction and / or a distance difference in the horizontal direction between the bouncing screen plates during movement.

2. The screening equipment as described in claim 1, characterized in that, The driving mechanism includes a driving component, a transmission shaft, and an eccentric component. The transmission shaft extends along the front-rear direction, and the eccentric component is connected between the transmission shaft and the bouncing screen plate. The driving component is fixedly arranged relative to the screen box and is used to drive the transmission shaft to rotate the eccentric component, so that the eccentric component drives the bouncing screen plate to perform reciprocating circular motion.

3. The screening equipment as described in claim 2, characterized in that, There is a 180° phase difference between the eccentric elements of any two adjacent screening components.

4. The screening equipment as described in claim 2, characterized in that, The drive mechanism also includes a reduction gearbox fixedly disposed relative to the screen box. The reduction gearbox has one power input shaft and two power output shafts. The power input shaft is located on one side of the reduction gearbox in the left-right direction. The power end of the drive member is coupled to the power input shaft. The two power output shafts are located on opposite sides of the reduction gearbox in the front-back direction. The eccentric member corresponds to the power input shaft one by one. The eccentric component is connected to the corresponding power input shaft via the transmission shaft, or the power output shaft includes the transmission shaft.

5. The screening equipment as described in claim 4, characterized in that, The number of gearboxes is set to two, and the two gearboxes are arranged at intervals in the left-right direction; wherein: The number of the driving components is set to two, and the two driving components are connected to the two reduction gearboxes in a one-to-one correspondence. Alternatively, the drive unit may include a dual-axis motor located between the two gearboxes, with the two power ends of the dual-axis motor respectively connected to the power input shaft of the corresponding gearbox.

6. The screening equipment as described in claim 4, characterized in that, The screening equipment further includes a lubrication source and / or a cooling source; wherein: The lubrication source, the gearbox, and the drive unit are connected in series via a first circulation pipeline. The lubrication source is used to provide and drive the lubricating medium to circulate among the gearbox, the drive unit, and the lubrication source. The cooling source and the gearbox are connected in series via a second circulation pipeline. The cooling source is used to provide and drive the cooling medium to circulate between the gearbox and the cooling source.

7. The screening equipment as described in claim 6, characterized in that, The speed reducer includes a housing and a speed reduction structure having the power input shaft and the power output shaft. The housing has an independent first chamber and a second chamber. The speed reduction structure is disposed in the first chamber. The first circulation pipe is connected to the first chamber, and the second circulation pipe is connected to the second chamber.

8. The screening equipment as described in claim 6, characterized in that, The drive mechanism further includes a support base; the support base is detachably connected to the screen box and is located below the bouncing screen plate; the drive component and the reduction gearbox are fixed to the support base and located between the support base and the bouncing screen plate; a pipe-laying space is formed inside the support base, and a portion of the first circulation pipe and a portion of the second circulation pipe are disposed in the pipe-laying space.

9. The screening device as described in any one of claims 1 to 8, characterized in that, The bouncing screen plate has a screen part, a mounting part, and a comb part. The screen part extends obliquely in the left-right direction, and the comb part protrudes from the top surface of the screen part and extends obliquely in the left-right direction. The mounting part protrudes from the bottom surface of the screen part and is used for coupling connection with the power end of the drive mechanism.

10. The screening equipment as described in claim 9, characterized in that, The number of comb teeth is set to one or more, and the multiple comb teeth are arranged side by side with intervals along the front-back direction; and / or the number of mounting parts is set to one or two, and the two mounting parts are spaced apart from each other along the front-back direction, and the driving mechanism is disposed between the two mounting parts.

11. The screening equipment as described in claim 9, characterized in that, The drive mechanism is located below the screen section, and a protective cover is provided between the drive mechanism and the screen section. The protective cover is used to cover at least a part of the drive mechanism and to guide the material falling through the screen section to avoid the drive mechanism.

12. The screening equipment as described in any one of claims 1 to 8, characterized in that, The screen box is inclined relative to the frame in the left-right direction, and the inclination angle of the screen box is the same as the inclination angle of the bouncing screen plate.

13. The screening equipment as described in claim 12, characterized in that, One end of the screen box is hinged to the frame in the left-right direction, and the other end of the screen box is connected to the frame through an adjustment mechanism; the adjustment mechanism can adjust the relative position between the screen box and the frame in the up-down direction, thereby adjusting the tilt angle of the screen box and the bouncing screen plate.

14. The screening device according to any one of claims 1 to 8, characterized in that, The top of the screen box is provided with a feeding structure, and the bottom of the screen box is provided with a first discharge structure, a second discharge structure and a third discharge structure arranged in sequence along the left and right directions and independent of each other. The feeding structure, the first discharge structure, the second discharge structure and the third discharge structure are respectively connected to the accommodating space. The feeding structure is used to input materials into the screening component so that the screening component can screen the materials into 3D materials, fine materials and 2D materials; the first discharge structure is used to output 3D materials, the second discharge structure is used to output fine materials and the third discharge structure is used to output 2D materials.

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