A vibration isolation device for a vibrating screen

Abstract

This utility model relates to the technical field of mining and aggregate processing equipment, and in particular to a vibration isolation device for a vibrating screen. It is installed between the vibrating screen and the steel structure base to form an elastic sandwich. The vibration isolation device comprises multiple vibration isolation units spliced ​​together. Each vibration isolation unit includes a first damping mechanism and a second damping mechanism to connect the base plate and the main beam, used to tighten the vibrating screen and provide longitudinal and lateral vibration damping. This utility model, through the first and second damping mechanisms, can effectively reduce the vibration energy transmitted to the ground, foundation structure, or other equipment during the operation of the vibrating screen, thereby reducing fatigue damage to the relevant components of the vibrating screen and extending its service life. The elastic sandwich formed between the vibrating screen and the base by this utility model can reduce vibration transmission efficiency by 60% to 80%, while the longitudinal and lateral vibration damping based on the second damping mechanism can effectively reduce noise pollution.

Description

Technical Field

[0001] This utility model relates to the technical field of mining and aggregate processing equipment, and in particular to a vibration isolation device for a vibrating screen. Background Technology

[0002] Screening machines are widely used in industries such as mining, metallurgy, coal, chemical, power, and construction. During operation, the screening machine is driven by a motor that drives a vibrator to rotate at high speed. Under the action of the eccentric block, it generates vibration. This vibration energy is directly transmitted to the ground through the support, affecting the service life of other related equipment.

[0003] To reduce the impact load on the ground caused by the vibration of the vibrating screen during normal operation and to enable the equipment to quickly overcome resonance and extend its service life, shock absorbers are commonly installed on the four support legs to reduce the impact load on the ground during normal operation. However, the vibration reduction effect of this structure is not good, especially when the foundation is a steel structure, the vibration reduction effect is very limited. Utility Model Content

[0004] The present invention aims to at least improve one of the technical problems existing in the prior art. To this end, the present invention proposes a vibration isolation device for a vibrating screen.

[0005] The technical solution of this utility model is as follows: A vibration isolation device for a vibrating screen is installed between the vibrating screen and a steel structure base to form an elastic sandwich layer. The device comprises multiple vibration isolation units spliced ​​together, each vibration isolation unit including: The base plate is installed on the steel structure base; The first vibration damping mechanism is installed on the base plate to perform longitudinal vibration damping on the vibrating screen; The main beam, mounted on the first vibration damping mechanism, is used to mount the vibrating screen; The second vibration damping mechanism is connected between the base plate and the main beam and is set at an angle to the first vibration damping mechanism. It is used to tighten the vibrating screen and perform secondary longitudinal and lateral vibration damping on the vibrating screen.

[0006] In one possible technical solution, each of the main beam sidewalls is further provided with a parallel sliding groove, and the second vibration damping mechanism includes: The limiting block is embedded in the parallel slide groove and can slide along the parallel slide groove. The shock absorber has one end connected to the limiting block, and the end of the shock absorber away from the limiting block is connected to the base plate.

[0007] In one possible technical solution, the shock absorber is further described as an automotive damper, model S56, with a center distance of 560mm.

[0008] It should be noted that, in this embodiment, the center distance refers to the straight-line distance between the center of the upper mounting point and the center of the lower mounting point when the shock absorber is in its fully extended natural state, so as to ensure that the base plate and the main beam can reserve sufficient vibration space during the operation of the vibrating screen.

[0009] In one possible technical solution, the shock absorber near the parallel groove is further provided with a pin, and the second damping mechanism further includes: A cotter pin is connected to the limiting block; A hexagonal slotted nut, wherein the cotter pin passes through the pin shaft and is connected to the hexagonal slotted nut.

[0010] In one possible technical solution, the second vibration damping mechanism further includes a perforated steel plate and a flat washer, which are respectively installed on both sides of the pin and fastened by a hexagonal slotted nut to improve installation stability.

[0011] In one possible technical solution, the first vibration damping mechanism further includes multiple helical cylindrical compression springs arranged in a rectangular array to improve the vibration uniformity of the vibrating screen.

[0012] In one possible technical solution, the main beams of adjacent vibration isolation units overlap and are connected to achieve splicing of multiple vibration isolation units.

[0013] In one possible technical solution, at least one vibration isolation unit has a support mounted on its main beam for mounting the vibrating screen host.

[0014] In one possible technical solution, the vibration isolation device further includes a reinforcing beam installed at the overlapping point of the main beams of adjacent vibration isolation units. Specifically, the reinforcing beam fixes the main beams of two adjacent vibration isolation units with bolts.

[0015] In one possible technical solution, the included angle between the second damping mechanism and the first damping mechanism is in the range of 15° to 60°, which is used to better tighten the vibrating screen while reducing noise during vibration.

[0016] According to the vibration isolation device for vibrating screen of this utility model, the vibration energy transmitted to the ground, foundation structure or other equipment during the operation of the vibrating screen can be effectively reduced through the first vibration damping mechanism and the second vibration damping mechanism, so as to reduce the fatigue damage of vibration to the relevant components of the vibrating screen itself and extend the service life of the vibrating screen.

[0017] The elastic interlayer formed between the vibrating screen and the substrate by the structure of this utility model can reduce the vibration transmission efficiency by 60% to 80%. At the same time, the longitudinal and lateral vibration reduction based on the second vibration reduction mechanism can effectively reduce noise pollution and extend the service life of the equipment.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a structural schematic diagram of a vibration isolation device for a vibrating screen according to an embodiment of the present utility model; Figure 2 This is a side view of the installation of the second vibration damping mechanism of the vibration isolation device for a vibrating screen according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the installation of the second vibration damping mechanism of the vibration isolation device for a vibrating screen according to an embodiment of the present utility model.

[0021] Figure label: Base plate 1; First vibration damping mechanism 2; Main beam 3, parallel sliding groove 31; Second vibration damping mechanism 4, limit block 41, shock absorber 42, pin 421, cotter pin 43, hexagonal slotted nut 44, steel plate 45, flat washer 46; Support 5; Strengthen beam 6. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. It should be understood that the specific embodiments described herein are merely for explaining this application and are not intended to limit this application.

[0023] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] The terms "first," "second," "third," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects and not to describe a particular order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, it may include a series of steps or units, or optionally, steps or units not listed, or other steps or units inherent to these processes, methods, products, or devices.

[0026] The terms “component,” “module,” “system,” “unit,” etc., used in this specification are used to refer to computer-related entities, hardware, firmware, combinations of hardware and software, software, or software in execution. For example, a unit can be, but is not limited to, a process running on a processor, a processor, an object, an executable file, a thread of execution, a program, and / or distributed between two or more computers. Furthermore, these units can be executed from various computer-readable media on which various data structures are stored. Units can communicate, for example, via local and / or remote processes based on signals having one or more data packets (e.g., data from a second unit interacting with another unit between a local system, a distributed system, and / or a network; for example, the Internet interacting with other systems via signals).

[0027] Example 1 like Figures 1 to 3 As shown, this embodiment provides a vibration isolation device for a vibrating screen, wherein it is installed between the vibrating screen and the steel structure base to form an elastic sandwich layer. The device comprises multiple vibration isolation units spliced ​​together, each vibration isolation unit including: Base plate 1 is installed on the steel structure base; The first vibration damping mechanism 2 is installed on the base plate 1 to perform longitudinal vibration damping on the vibrating screen; The main beam 3 is mounted on the first vibration damping mechanism 2 and is used to mount the vibrating screen; The second vibration damping mechanism 4 is connected between the base plate 1 and the main beam 3, and is set at an angle to the first vibration damping mechanism 2. It is used to tighten the vibrating screen and perform secondary longitudinal and lateral vibration damping on the vibrating screen.

[0028] It should be noted that, in this embodiment, each of the main beams 3 has a parallel sliding groove 31 on its side wall, and the second vibration damping mechanism 4 includes: The limiting block 41 is embedded in the parallel slide groove 31 and can slide along the parallel slide groove 31. The shock absorber 42 has one end connected to the limiting block 41, and the end of the shock absorber 42 away from the limiting block 41 is connected to the base plate 1.

[0029] It should be noted that in this embodiment, the shock absorber 42 is an automotive damper, model S56, with a center distance of 560mm.

[0030] It should be noted that, in this embodiment, the center distance refers to the straight-line distance between the center of the upper mounting point and the center of the lower mounting point when the shock absorber is in its fully extended natural state, so as to ensure that the base plate 1 and the main beam 3 can reserve sufficient vibration space during the operation of the vibrating screen.

[0031] It should be noted that, in this embodiment, the first vibration damping mechanism 2 includes multiple helical cylindrical compression springs arranged in a rectangular array to improve the vibration uniformity of the vibrating screen.

[0032] It should be noted that, in this embodiment, the included angle between the second vibration damping mechanism 4 and the first vibration damping mechanism 2 is in the range of 15° to 60°, which is used to better tighten the vibrating screen while reducing the noise during vibration.

[0033] Example 2 This embodiment is a further improvement on embodiment 1, wherein the shock absorber 42 near the parallel slide 31 is provided with a pin 421, and the second damping mechanism 4 further includes: Cotter pin 43 is connected to the limiting block 41; A hexagonal slotted nut 44 is provided, and a cotter pin 43 passes through a pin shaft 421 and connects to the hexagonal slotted nut 44. The cotter pin 43 is used to lock the hexagonal slotted nut 44 to prevent it from loosening, thereby ultimately ensuring a firm and reliable anti-loosening mechanism for connection with the limit block 41.

[0034] It should be noted that, in this embodiment, the second vibration damping mechanism 4 also includes a perforated steel plate 45 and a flat washer 46, which are respectively installed on both sides of the pin 421 and fastened by a hexagonal slotted nut 44 to improve installation stability.

[0035] It should be noted that in this embodiment, the main beams 4 of adjacent vibration isolation units overlap and are connected to achieve splicing of multiple vibration isolation units.

[0036] Example 3 This embodiment is a further improvement on embodiment 1, wherein at least one vibration isolation unit has a support 5 installed on the main beam 3 for installing the vibrating screen host.

[0037] The vibration isolation device also includes a reinforcing beam 6, which is installed at the overlapping point of the main beams 4 of adjacent vibration isolation units. Specifically, the reinforcing beam 6 fixes the main beams of two adjacent vibration isolation units with bolts.

[0038] According to the vibration isolation device for vibrating screen of this utility model, the vibration energy transmitted to the ground, foundation structure or other equipment during the operation of the vibrating screen can be effectively reduced through the first vibration damping mechanism and the second vibration damping mechanism, so as to reduce the fatigue damage of vibration to the relevant components of the vibrating screen itself and extend the service life of the vibrating screen.

[0039] The elastic interlayer formed between the vibrating screen and the substrate by the structure of this utility model can reduce the vibration transmission efficiency by 60% to 80%. At the same time, the longitudinal and lateral vibration reduction based on the second vibration reduction mechanism can effectively reduce noise pollution and extend the service life of the equipment.

[0040] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the utility model.

[0041] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0042] Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. The reference to "embodiment" herein means that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily indicate the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0043] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A vibration isolation device for a vibrating screen, characterized in that, Installed between the vibrating screen and the steel structure base to form an elastic sandwich, the device comprises multiple vibration isolation units spliced ​​together, each vibration isolation unit including: The base plate (1) is installed on the steel structure base; The first vibration damping mechanism (2) is installed on the base plate (1) to perform longitudinal vibration damping on the vibrating screen; The main beam (3) is installed on the first vibration damping mechanism (2) and is used to install the vibrating screen; The second vibration damping mechanism (4) is connected between the base plate (1) and the main beam (3) and is set at an angle to the first vibration damping mechanism (2). It is used to tighten the vibrating screen and perform secondary longitudinal and transverse vibration damping on the vibrating screen.

2. The vibration isolation device for a vibrating screen according to claim 1, characterized in that, Each of the main beams (3) has a parallel groove (31) on its side wall, and the second vibration damping mechanism (4) includes: The limiting block (41) is embedded in the parallel slide groove (31); The shock absorber (42) is connected at one end to the limiting block (41), and the end of the shock absorber (42) away from the limiting block (41) is connected to the base plate (1).

3. The vibration isolation device for a vibrating screen according to claim 2, characterized in that, The shock absorber (42) is an automotive damper with a center distance of 560mm.

4. The vibration isolation device for a vibrating screen according to claim 2, characterized in that, The shock absorber (42) near the parallel slide (31) is provided with a pin (421), and the second damping mechanism (4) further includes: A cotter pin (43) is connected to the limiting block (41); A hexagonal slotted nut (44), wherein the cotter pin (43) passes through the pin shaft (421) and is connected to the hexagonal slotted nut (44).

5. The vibration isolation device for a vibrating screen according to claim 4, characterized in that, The second vibration damping mechanism (4) also includes a perforated steel plate (45) and a flat pad (46), which are respectively installed on both sides of the pin (421).

6. The vibration isolation device for a vibrating screen according to claim 1, characterized in that, The first vibration damping mechanism (2) includes multiple spiral cylindrical compression springs arranged in a rectangular array.

7. The vibration isolation device for a vibrating screen according to claim 1, characterized in that, The main beams (3) of adjacent vibration isolation units overlap and are connected to achieve splicing of multiple vibration isolation units.

8. The vibration isolation device for a vibrating screen according to claim 1, characterized in that, At least one vibration isolation unit has a support (5) installed on its main beam (3).

9. The vibration isolation device for a vibrating screen according to claim 1, characterized in that, The vibration isolation device also includes a reinforcing beam (6), which is installed at the overlapping point of the main beam (3) of the adjacent vibration isolation unit.

10. The vibration isolation device for a vibrating screen according to claim 1, characterized in that, The angle between the second damping mechanism (4) and the first damping mechanism (2) is in the range of 15° to 60°.

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