High efficiency tensioned screen with air spring
Patent Information
- Application Number
- CN202522774428.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-29
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-12-29
AI Technical Summary
[0003]目前，市面上普通振动筛，减震装置多为钢簧或经常出现减震效果差筛分效率低的问题，为解决以上问题，优化振动筛减震装置结构，提高筛分效率我公司研发了一种空气弹簧高效弛张筛
[0009]与现有技术相比，本实用新型的有益效果是：通过电机转动可以带动输入短轴转动，通过输入短轴转动可以带动一个激振器转动，另一个激振器通过中间传动轴带动其运行，通过激振器运行来带动筛箱振动，以此方式进行振动工作，通过浮动筛框可在物料作用下使筛面上下摆动，加快物料运行速度，避免物料集中，使筛面能更高效筛分，空气弹簧通过气源向其内部充气，以此使空气弹簧内部气压能够改变，根据不同载荷需求灵活调整空气弹簧的弹性性能，实现“软-硬”特性的动态适配，缓冲和减震效果显著，可有效吸收高频振动和冲击；同时多个空气弹簧组合使用时，能自动分配负载，使各支点受力均匀，避免局部过载，保护设备同时也能保护基础，该空气弹簧高效驰张筛，结构简单，安装拆卸方便、同时该类型筛机具有透筛率高、筛分效果好、防堵性能优异、减振效果好及对基础冲击小的特点，能自动分配负载，使各支点受力均匀，避免局部过载，保护设备同时也能保护基础。
Smart Images
Figure CN224894770U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical tensioning screen technology, specifically an air spring high-efficiency tensioning screen. Background Technology
[0002] With the rapid development of my country's economy and science and technology, as well as the integration of energy industries such as coal and mining, my country's energy industry is gradually moving towards the screening of fine-particle materials, which is unique and irreplaceable. Once damaged, it will directly lead to the complete shutdown of the entire production process, causing incalculable economic losses. This puts forward higher requirements for vibrating screening equipment.
[0003] Currently, most ordinary vibrating screens on the market use steel springs as their damping devices, which often result in poor damping and low screening efficiency. To solve these problems, optimize the structure of the vibration damping device of the vibrating screen, and improve screening efficiency, our company has developed an air spring high-efficiency tension screen. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide an air spring high-efficiency tension screen with a simple structure and convenient installation and disassembly. At the same time, this type of screen has the characteristics of high screening rate, good screening effect, excellent anti-clogging performance, good vibration reduction effect and small impact on the foundation. It can automatically distribute the load, so that the force on each support point is uniform, avoid local overload, protect the equipment and the foundation at the same time, and can effectively solve the problems in the background technology.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an air spring high-efficiency tension screen, including a screen box, which is inclined. A discharge end spring support is provided on the front and rear sides of the left end of the screen box, and a feed end spring support is provided on the front and rear sides of the right end of the screen box. Both the feed end spring support and the discharge end spring support have a quick-release replacement device for air springs at their lower ends. A set of air springs is evenly arranged on the lower surface of the quick-release replacement device. The two sets of air springs on the left side are connected to a discharge end support leg via the quick-release replacement device, and the two sets of air springs on the right side are connected to a feed end support leg via the quick-release replacement device. The inlet of each air spring is connected to the outlet of an air source via an air passage. A vibration source is installed on the screen box.
[0006] Furthermore, the screen box includes screen plates facing each other front and back. A floating screen frame is provided at the lower end between the two screen plates, and a fixed screen frame screen plate is provided between the two screen plates. The fixed screen frame screen plate is located above the floating screen frame. A rear baffle is provided between the right ends of the two screen plates. An upper crossbeam is evenly provided between the upper ends of the two screen plates. Each screen plate is provided with a vibrator base for mounting a vibration source at its upper end. The floating screen frame can make the screen surface swing up and down under the action of the material, thereby accelerating the material running speed, avoiding material concentration, and enabling the screen surface to screen more efficiently.
[0007] Furthermore, the vibration source includes two vibrators fixed on two vibrator bases. The two vibrators are driven by an intermediate transmission shaft. One end of one vibrator is connected to an input short shaft, and the input end of the input short shaft is driven by the output shaft end of the motor. The transmission method between the input short shaft and the motor is existing technology, such as through belt and pulley transmission. The rotation of the motor can drive the input short shaft to rotate, and the rotation of the input short shaft can drive one vibrator to rotate. The other vibrator is driven to run through the intermediate transmission shaft. The operation of the vibrator drives the screen box to vibrate, and the vibration operation is carried out in this way.
[0008] Furthermore, the air spring quick-release replacement device includes an air spring fixing plate, which is uniformly fixed by countersunk screws, and an air spring quick-release plate is uniformly installed on the air spring fixing plate, which is fixed to the air spring fixing plate by hexagon socket head cap screws.
[0009] Compared with existing technologies, the beneficial effects of this utility model are as follows: The rotation of the motor drives the input short shaft to rotate, which in turn drives one vibrator. Another vibrator is driven by an intermediate transmission shaft, which in turn drives the screen box to vibrate. This vibration operation, achieved through a floating screen frame, allows the screen surface to swing up and down under the action of material, accelerating material movement, preventing material concentration, and enabling more efficient screening. The air spring is inflated by an air source, allowing for changes in internal air pressure and flexible adjustment according to different load requirements. With its elastic properties, it achieves dynamic adaptation of "soft-hard" characteristics, providing significant buffering and shock absorption, and effectively absorbing high-frequency vibrations and impacts. Simultaneously, when multiple air springs are used in combination, they can automatically distribute the load, ensuring uniform force distribution at each support point, avoiding localized overload, and protecting both the equipment and the foundation. This high-efficiency air spring tension screen features a simple structure, convenient installation and disassembly, high screening rate, good screening effect, excellent anti-clogging performance, good vibration reduction effect, and minimal impact on the foundation. It can automatically distribute the load, ensuring uniform force distribution at each support point, avoiding localized overload, and protecting both the equipment and the foundation. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the left-side structure of this utility model; Figure 3 This is a schematic diagram of the sieve box structure of this utility model; Figure 4 This is a schematic diagram of the structure of the quick-release replacement device for the air spring of this utility model; Figure 5 This is a top view schematic diagram of the quick-release air spring replacement device of this utility model; Figure 6 This is a bottom view of the structure of the quick-release air spring replacement device of this utility model.
[0011] In the diagram: 1. Screen box, 111. Screen plate, 112. Fixed screen frame screen plate, 113. Floating screen frame, 114. Upper crossbeam, 115. Vibrator base, 116. Rear baffle, 2. Discharge end support leg, 3. Air spring, 4. Discharge end spring upper support, 5. Vibrator, 6. Air passage, 7. Feed end support leg, 8. Feed end spring upper support, 9. Air spring quick-release replacement device, 91. Air spring quick-release plate, 92. Socket head cap screw, 93. Countersunk screw, 94. Air spring fixing plate, 10. Air source, 11. Drive shaft, 12. Input short shaft, 13. Motor. Detailed Implementation
[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0013] Please see Figure 1-6This utility model provides a technical solution: an air spring high-efficiency tension screen, including a screen box 1, which is inclined. A discharge end spring support 4 is provided on the front and rear sides of the left end of the screen box 1, and a feed end spring support 8 is provided on the front and rear sides of the right end of the screen box 1. Both the feed end spring support 8 and the discharge end spring support 4 have an air spring quick-release replacement device 9 at their lower ends. A set of air springs 3 is evenly arranged on the lower surface of the air spring quick-release replacement device 9. The two sets of air springs 3 on the left side are connected by an air spring quick-release replacement device. Each of the 9 units is connected to a discharge end support leg 2. The two sets of air springs 3 on the right side are connected to a feed end support leg 7 through an air spring quick-release replacement device 9. The inlet of each air spring 3 is connected to the outlet of the air source 10 through an air passage 6. A vibration source is installed on the screen box 1. The air spring 3 is inflated by the air source 10, so that the internal air pressure of the air spring 3 can be changed. The elastic performance of the air spring 3 can be flexibly adjusted according to different load requirements to achieve dynamic adaptation of "soft-hard" characteristics. The buffering and shock absorption effects are significant, and it can effectively absorb high-frequency vibration and impact.When multiple air springs are used in combination, they can automatically distribute the load, ensuring even force distribution at each support point, preventing localized overload, and protecting both the equipment and the foundation. The screen box 1 includes two opposing screen plates 111. A floating screen frame 113 is installed at the lower end between the two screen plates 111. A fixed screen frame 112 is installed between the two screen plates 111, positioned above the floating screen frame 113. A rear baffle 116 is installed between the right ends of the two screen plates 111. Upper baffles are evenly distributed between the upper ends of the two screen plates 111. Both the crossbeam 114 and the upper end of the screen plate 111 are equipped with vibrator bases 115 for mounting the vibration source. The floating screen frame 113 allows the screen surface to swing up and down under the action of the material, accelerating the material's movement, preventing material concentration, and enabling more efficient screening. The vibration source includes two vibrators 5 fixed to the two vibrator bases 115. The two vibrators 5 are driven by an intermediate transmission shaft 11. One end of each vibrator 5 is connected to an input short shaft 12, and the input end of the input short shaft 12 is connected to the output shaft end of the motor 13. The transmission method between the input short shaft 12 and the motor 13 is existing technology, such as belt and pulley transmission. The rotation of the motor 13 drives the input short shaft 12 to rotate, which in turn drives one vibrator 5 to rotate. The other vibrator 5 is driven by the intermediate transmission shaft 11, and the operation of the vibrator 5 drives the screen box 1 to vibrate. The air spring quick-release replacement device 9 includes an air spring fixing plate 94, which is uniformly fixed by countersunk screws 93. Air spring quick-release plates 91 are uniformly installed on the air spring fixing plate 94 and fixed to the air spring fixing plate 94 by hexagon socket head cap screws 92. This air spring high-efficiency tension screen has a simple structure and is easy to install and disassemble. At the same time, this type of screen has the characteristics of high screening rate, good screening effect, excellent anti-clogging performance, good vibration reduction effect and small impact on the foundation. It can automatically distribute the load, so that the force on each support point is uniform, avoiding local overload, protecting the equipment and the foundation.
[0014] In use: the rotation of motor 13 drives the input short shaft 12 to rotate, which in turn drives one vibrator 5 to rotate. The other vibrator 5 is driven by the intermediate transmission shaft 11, which in turn drives the screen box 1 to vibrate. The floating screen frame 113 can swing up and down under the action of the material, which can speed up the material movement, prevent material concentration, and make the screen surface more efficient for screening. The air spring 3 is inflated by the air source 10, which can change the internal air pressure of the air spring 3. The elastic performance of the air spring 3 can be flexibly adjusted according to different load requirements to achieve dynamic adaptation of "soft-hard" characteristics. The buffering and shock absorption effect is significant, and it can effectively absorb high-frequency vibration and impact. At the same time, when multiple air springs are used in combination, they can automatically distribute the load, so that the force on each support point is even, avoid local overload, and protect the equipment and the foundation.
[0015] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.
Claims
1. An air spring high-efficiency tension screen, comprising a screen box (1), characterized in that: The screen box (1) is inclined. A discharge end spring support (4) is provided on the front and rear sides of the left end of the screen box (1), and a feed end spring support (8) is provided on the front and rear sides of the right end of the screen box (1). An air spring quick-release replacement device (9) is provided at the lower end of both the feed end spring support (8) and the discharge end spring support (4). A set of air springs (3) is evenly arranged on the lower surface of the air spring quick-release replacement device (9). The two sets of air springs (3) on the left side are connected to the discharge end support leg (2) through an air spring quick-release replacement device (9). The two sets of air springs (3) on the right side are connected to the feed end support leg (7) through an air spring quick-release replacement device (9). The inlet of each air spring (3) is connected to the outlet of the air source (10) through an air passage (6). A vibration source is installed on the screen box (1).
2. The high-efficiency tensioned screen with air spring according to claim 1, characterized in that: The sieve box (1) includes sieve plates (111) facing each other. A floating sieve frame (113) is provided at the lower end between the two sieve plates (111). A fixed sieve frame sieve plate (112) is provided between the two sieve plates (111). The fixed sieve frame sieve plate (112) is located above the floating sieve frame (113). A rear baffle (116) is provided between the right ends of the two sieve plates (111). An upper crossbeam (114) is evenly provided between the upper ends of the two sieve plates (111). A vibrator base (115) for mounting a vibration source is provided at the upper end of each sieve plate (111).
3. The high-efficiency tensioned screen with air spring according to claim 2, characterized in that: The vibration source includes two vibrators (5) fixed on two vibrator bases (115). The two vibrators (5) are driven by an intermediate drive shaft (11). One end of one vibrator (5) is connected to an input short shaft (12). The input end of the input short shaft (12) is connected to the output shaft end of the motor (13). The input short shaft (12) and the motor (13) are driven by a belt and a pulley.
4. The high-efficiency tensioned screen with air spring according to claim 1, characterized in that: The air spring quick-release replacement device (9) includes an air spring fixing plate (94), which is uniformly fixed by countersunk screws (93). An air spring quick-release plate (91) is uniformly installed on the air spring fixing plate (94), and the air spring quick-release plate (91) is fixed on the air spring fixing plate (94) by internal hexagonal head screws (92).