Anti-falling limiting tool for vibration absorber

Abstract

The utility model belongs to the field of vibration and noise control, and relates to an auxiliary limiting device of a vibration absorber, in particular to an anti-falling limiting tool of the vibration absorber. The fixing device and the limiting device are integrally arranged or detachably and fixedly connected into a whole, and the limiting device comprises a longitudinal limiting structure and a transverse limiting structure. The anti-falling limiting tool for the vibration absorber is simple in structure, convenient to construct, high in practicability, capable of effectively preventing the vibration absorber from falling off from the surface of a structure to be subjected to vibration reduction in the using process, safe, reliable and capable of being widely applied to vibration and noise treatment projects in the fields of rail transit, steel structure buildings and the like.

Description

Technical Field

[0001] The utility model belongs to the field of vibration and noise control, and relates to an auxiliary limiting device for a vibration absorber, in particular to an anti-slip limiting tooling for a vibration absorber. Background Art

[0002] With the continuous advancement of urbanization and the development of urban transportation networks, the number of high-rise buildings, long-span bridges, and other structures is increasing. While this has improved people's quality of life, it has also led to numerous vibration and noise issues. These include environmental complaints caused by wheel-rail vibration and noise during rail vehicle operation, forced resonance on pedestrian bridges caused by pedestrian excitation, and vortex-induced resonance on long-span bridges caused by wind excitation. To protect engineering structures and reduce vibration and noise interference, tuned mass vibration dampers (also known as vibration absorbers) are widely used as an effective control measure. In particular, various vibration absorbers are widely used to control wheel-rail vibration and metal beam-column vibration in steel structures. A typical example is Chinese invention patent application number 201310287705.1, which discloses a tuned mass damper with a frame. In use, this tuned mass damper with a frame can be directly attached to the surface of the structure to be damped, or clamped to the surface using a spring clamp, to achieve effective vibration reduction. However, in practice, it has been found that due to the intense vibrations experienced in operating conditions such as wheel-rail vibration, relying solely on bonding or clamping to ensure effective fixation is difficult. If cracks develop at the bonding joint or slippage occurs at the clamping joint, the vibration absorber can accidentally fall off, causing danger and further damage. Furthermore, different industries have different assembly requirements. For example, in industries like subways, damaging connection methods such as welding or drilling are prohibited, requiring special consideration during installation and fixation.

[0003] In summary, the market urgently needs a safer and more reliable vibration absorber fixing device. Utility Model Content

[0004] The purpose of the utility model is to overcome the above-mentioned defects and provide a safer and more reliable anti-drop limit fixture for a vibration absorber.

[0005] The anti-slip limiting tooling of the vibration absorber of the present invention is realized in this way, including a fixing device and a limiting device, the fixing device and the limiting device are integrated or detachably connected into one body; corresponding to the axial direction of the vibration absorber and the height and width directions of the vibration absorber cross section, the limiting device includes a longitudinal limiting structure and a transverse limiting structure.

[0006] It should be noted that, in the present invention, the longitudinal direction refers to the axial direction of the vibration absorber, and the transverse direction refers to the general term for the height and width of the cross section perpendicular to the axial direction of the vibration absorber.

[0007] The specific structure of the anti-slip limiting tooling of the vibration absorber of the present invention can be varied. For example, the fixing device includes a positioning clamp and a positioning locking fastener; correspondingly, the longitudinal limiting structure is composed of a local positioning clamp, and the transverse limiting structure includes a limiting retaining ring integrated with the positioning clamp, the inner cavity contour shape of the limiting retaining ring corresponds at least partially to the outer contour of the vibration absorber, and is allowed to partially surround the end of the vibration absorber; or, the longitudinal limiting structure is composed of a local positioning clamp, and the transverse limiting structure includes a limiting retaining ring, a connecting plate is fixedly arranged on the limiting retaining ring, and the connecting plate is detachably fixed to the positioning clamp by a threaded fastener, and the inner cavity contour shape of the limiting retaining ring corresponds at least partially to the outer contour of the vibration absorber, and is allowed to partially surround the end of the vibration absorber; if necessary, an elastic layer is provided on the surface of the limiting retaining ring that cooperates with the vibration absorber, or a gap is left between the limiting retaining ring and the vibration absorber; of course, based on the above technical principles, an elastic layer can also be provided on the clamping surface of the positioning clamp. Another typical application method may be that the fixing device includes a fixed connecting plate, the fixed connecting plate is fixed to the object to be attenuated by welding, riveting, or bolting, or the fixed connecting plate is adhered to the surface of the object to be attenuated by adhesive, the transverse limiting structure includes a bracket plate integrally arranged with the fixed connecting plate and a transverse limiting baffle fixedly arranged on the bracket plate, and the longitudinal limiting structure is a longitudinal limiting baffle, and the longitudinal limiting baffle is integrally arranged with the bracket plate; or, the transverse limiting structure includes a bracket plate integrally arranged with the fixed connecting plate and a transverse limiting baffle fixedly arranged on the bracket plate, the longitudinal limiting structure is a longitudinal limiting baffle, and the transverse limiting baffle or / and the longitudinal limiting baffle are detachably fixed to the bracket plate by threaded fasteners; if necessary, an elastic layer is provided between the longitudinal limiting baffle and the vibration absorber, or / and between the transverse limiting baffle and the vibration absorber, or / and between the bracket plate and the vibration absorber.

[0008] The utility model discloses a vibration absorber anti-slip limiting tool, which is fixedly connected to the structure to be vibrated by a fixing device, and then limits the vibration absorber by a limiting device. Specifically, the longitudinal limiting structure and the transverse limiting structure are used to limit the axial direction and the width or / and height direction of the cross section of the vibration absorber at the same time, ensuring that the vibration absorber will not slip or will not fall off after being peeled off from the structure to be vibrated, thereby greatly improving the reliability of the vibration absorber installation and effectively avoiding the danger or loss caused by the accidental falling off of the vibration absorber.

[0009] When used, the vibration absorber anti-slip limit fixture of the utility model can be used as a direct fixing and protection measure for the vibration absorber, and can also be used as an auxiliary fixing and protection measure, and can be selected according to the needs of the project.

[0010] To sum up, the utility model of the vibration absorber anti-dropping limit fixture has a simple structure, convenient construction, and strong practicality. It can effectively prevent the vibration absorber from falling off the surface of the structure to be damped during use. It is safe and reliable and can be widely used in vibration and noise control projects in the fields of rail transportation, steel structure construction, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is one of the structural schematic diagrams of the anti-slip limiting tooling for the vibration absorber of the present invention.

[0012] Figure 2 for Figure 1 Left view of .

[0013] Figure 3 for Figure 1 The diagram below shows the application of the vibration absorber anti-slip limit fixture.

[0014] Figure 4 for Figure 3 Partial right view of .

[0015] Figure 5 This is the second structural diagram of the anti-slip limiting tooling for the vibration absorber of the present invention.

[0016] Figure 6 for Figure 5 Right view of .

[0017] Figure 7 This is the third structural diagram of the anti-slip limiting tooling for the vibration absorber of the present invention.

[0018] Figure 8 for Figure 7 The diagram below shows the application of the vibration absorber anti-slip limit fixture.

[0019] Figure 9 for Figure 8 Partial right view of .

[0020] Figure 10 This is the fourth structural diagram of the anti-slip limiting tooling for the vibration absorber of the present invention. DETAILED DESCRIPTION

[0021] Example 1

[0022] like Figure 1 and Figure 2The anti-slip limiting tooling of the vibration absorber of the utility model shown in the figure includes a fixing device and a limiting device, which are integrated and specifically welded into one; the limiting device includes a longitudinal limiting structure and a transverse limiting structure, wherein the fixing device includes a positioning clamp 1 and a positioning locking fastener 2; correspondingly, the transverse limiting structure includes a limiting ring 3 integrated with the positioning clamp 1, and the longitudinal limiting structure is composed of a local positioning clamp 1 connected to the limiting ring 3, and the inner cavity contour shape of the limiting ring 3 corresponds to the outer contour of the vibration absorber, and is allowed to partially surround the end of the vibration absorber.

[0023] It is particularly important to note that in this utility model, the longitudinal direction refers to the axial direction of the vibration absorber, and the transverse direction refers to the height and width of the cross section perpendicular to the axial direction of the vibration absorber. The following is an example of application to track vibration reduction. When applied, Figure 3 and Figure 4 As shown, the vibration absorber 5 is glued and fixed on the wing plate of the rail 4, and then the vibration absorber anti-slip limit fixture of the utility model is respectively set on the two side ends of the vibration absorber 5, wherein the positioning clip 1 is clamped at the wing plate of the rail 4, and then the vibration absorber anti-slip limit fixture of the utility model is translated, and the limit ring 3 is used to partially surround the end of the vibration absorber 5. After determining the position, the positioning locking fastener 2 is used to fix the vibration absorber anti-slip limit fixture of the utility model on the rail 4.

[0024] It should be pointed out that, according to different purposes, the main usage of the vibration absorber anti-slip limit fixture of the present invention includes two kinds. The first is to use the vibration absorber anti-slip limit fixture of the present invention as a direct fixing device. At this time, the limit ring can directly contact the vibration absorber to press the vibration absorber on the surface of the rail. In this way of use, the vibration absorber can be pasted on the surface of the rail at the same time. The two fixing methods realize double insurance. Alternatively, the vibration absorber can also be placed directly on the surface of the rail, and the vibration absorber can be fixed on the surface of the rail only by using the vibration absorber anti-slip limit fixture of the present invention. The other way is to use the vibration absorber anti-slip limit fixture of the present invention. The positioning fixture is used as a safety protection device. It does not participate in the fixation between the vibration absorber and the rail. When used, the vibration absorber is glued and fixed to the surface of the rail, or the vibration absorber is fixed to the rail using other fixing elements such as elastic clamps, and then the vibration absorber anti-slip limit fixture of the utility model is set at both ends of the vibration absorber. Under normal circumstances, the limit ring only surrounds the vibration absorber and does not directly contact the vibration absorber. There is a gap between the two. If the adhesive fixing measures between the vibration absorber and the rail fail and cause the vibration absorber to separate from the rail surface, the limit ring will contact the vibration absorber to limit the position, preventing the vibration absorber from completely falling off, causing driving hazards or causing other losses. In actual engineering applications, the vibration absorber anti-slip limit fixture of the utility model can be used as a direct fixing protection measure for the vibration absorber, or as an auxiliary limiting protection measure, and can be selected for use according to the needs of the project.

[0025] The utility model discloses a vibration absorber anti-slip limiting tool, which is fixedly connected to the structure to be vibrated by a fixing device, and then limits the vibration absorber by a limiting device. Specifically, the longitudinal limiting structure and the width and height of the cross section of the vibration absorber are simultaneously limited by the longitudinal limiting structure, so as to ensure that the vibration absorber will not slip or fall off after being separated from the structure to be vibrated. Therefore, the reliability of the vibration absorber installation is greatly improved, and the danger or loss caused by the accidental falling off of the vibration absorber can be effectively avoided.

[0026] To sum up, the utility model of the vibration absorber anti-dropping limit tooling has a simple structure, convenient construction, strong practicality and good applicability. It can effectively prevent the vibration absorber from falling off the surface of the structure to be vibrated during use. It is safe and reliable and can be widely used in vibration and noise control projects in the fields of rail transportation, steel structure construction, etc.

[0027] Example 2

[0028] like Figure 5 and Figure 6 The anti-slip limiting tooling of the vibration absorber of the utility model shown in the figure is different from that of Example 1 in that the lateral limiting structure includes a limiting retaining ring 3, on which a connecting plate 11 is fixedly arranged, and the connecting plate 11 is detachably fixedly connected to the positioning clamp 1 through a threaded fastener 12; in addition, an elastic layer 6 is provided on the surface of the limiting retaining ring 3 that cooperates with the vibration absorber, and an elastic layer is also provided on the clamping surface of the positioning clamp 1. Specifically, the elastic layer 6 is a layer of elastic polyurethane material applied on the surface of the limiting retaining ring 3 and the clamping surface of the positioning clamp 1.

[0029] Compared with Example 1, in the technical solution described in this example, since a detachable connection structure is adopted between the limit stop and the positioning clamp, it is more convenient to adjust during engineering applications. For example, a gasket can be added between the connecting plate and the positioning clamp to adjust the height of the limit stop ring, or a long hole can be provided on the connecting plate to cooperate with the threaded fastener to adjust the range of the limit stop ring around the vibration absorber, which is more convenient and flexible during application. In addition, after an elastic layer is provided on the surface of the limit stop ring, an elastic buffer can be formed between the vibration absorber and the limit stop ring to avoid direct collision and sound between the limit stop ring and the vibration absorber, which is beneficial to improving the vibration reduction and noise reduction effect. Similarly, the elastic layer provided at the clamping mouth of the positioning clamp can avoid damage or sound caused by direct contact and collision between the positioning clamp and the rail during installation or operation. If the elastic layer of insulating material is used, it can also achieve the technical effect of insulation between the two.

[0030] It should be pointed out that in addition to polyurethane materials, other elastic materials such as elastic rubber can also be used to form the elastic layer. In addition to providing elastic buffering protection, the elastic layer can also provide other functional effects such as insulation depending on the specific material. In addition, the elastic layer provided at the limit ring and the elastic layer provided at the positioning clamp can also be made of different materials to achieve specific functions. This is only explained in text here, and no additional drawings are provided. In practice, they can be selected and used according to engineering needs, and they are all within the protection scope required by this utility model.

[0031] Example 3

[0032] like Figure 7 The anti-slip limiting tooling of the vibration absorber of the utility model shown in the figure is different from that of Example 1 in that the fixing device includes a fixed connecting plate 7, the lateral limiting structure includes a bracket plate 8 integrated with the fixed connecting plate 7 and a lateral limiting baffle 10 integrated on the bracket plate 8, and the longitudinal limiting structure is a longitudinal limiting baffle 9, which is integrated with the bracket plate 8.

[0033] The following describes the usage of the vibration absorber anti-slip limit fixture of the utility model by taking the installation of the vibration absorber on the I-beam of the steel building as an example. Figure 8 and Figure 9 As shown, the vibration absorber 5 is glued and fixed to the middle part of the web of the I-beam 13, and the vibration absorber anti-slip limit fixture of the utility model is arranged at the two side ends of the vibration absorber 5, wherein the fixed connecting plate 7 is glued and fixed to the web of the I-beam 13 by adhesive, the bracket plate 8 contacts the vibration absorber 5 from the bottom, the transverse limit baffle 10 presses on the transverse outer vertical surface of the vibration absorber 5 to form a limit, and the longitudinal limit baffle 9 limits the vibration absorber 5 from the axial direction of the vibration absorber 5. Due to the use of the vibration absorber anti-slip limit fixture of the utility model, even if the adhesion of the vibration absorber fails and the vibration absorber is peeled off from the surface of the I-beam, it will still not fall off further under the limit of the vibration absorber anti-slip limit fixture of the utility model, which can effectively prevent accidental falling and injuring people or equipment below, and is safer and more reliable. Of course, based on the technical principles in Example 1, the anti-slip limit fixture of the vibration absorber of the utility model described in this example can also maintain a gap between the vibration absorber. For example, a gap of 3-5mm is retained between the bracket plate, the transverse limit baffle and the longitudinal limit baffle and the vibration absorber. At this time, the anti-slip limit fixture of the vibration absorber of the utility model is only used as an auxiliary limiting protection measure and is no longer used as a direct fixing measure for the vibration absorber. Specifically, it can be selected for use according to the needs of the project.

[0034] It should also be noted that the adhesive used to fix the connecting plate to the I-beam may be different from the adhesive used to fix the vibration absorber to the I-beam. Preferably, neoprene, polypropylene adhesive, steel adhesive (based on epoxy adhesive), etc. can be used.

[0035] Example 4

[0036] like Figure 10 The anti-slip limiting fixture of the vibration absorber of the utility model shown in the figure is different from the third embodiment in that a through hole is provided on the fixed connecting plate 7 (not specifically shown in the figure). When used, the fixed connecting plate 7 and the I-beam 13 are fixed together by means of bolts 14 in cooperation with the above-mentioned through holes; in addition, the transverse limit baffle 10 is provided independently, and is detachably fixed to the bracket plate 8 by means of threaded fasteners 12; in addition, elastic layers 6 made of elastic rubber material are respectively provided between the bracket plate 8, the longitudinal limit block 9 and the transverse limit block 10 and the vibration absorber 5.

[0037] Compared with the third embodiment, the special advantages of the technical solution described in this embodiment include: (1) the fixed connecting plate and the I-beam are fixed together by bolts, and the connection is more reliable; (2) the transverse limit baffle and the bracket plate adopt a split structure, which is simpler to process and easier to assemble with the vibration absorber; elastic layers made of elastic rubber material are respectively provided between the bracket plate, the longitudinal limit block and the transverse limit block 1 and the vibration absorber, which can avoid direct collision and sound between the above structures and the vibration absorber, and is conducive to improving the vibration reduction and noise reduction effect. In addition, if the elastic layer of the material with insulating properties is used, it can also achieve the technical effect of insulation.

[0038] Of course, based on the technical principles of this example and the aforementioned embodiments, the fixed connecting plate and the bracket plate can also be detachably integrated. Specifically, the two can be fixed together by threaded fasteners. In addition, in addition to the transverse limit baffle and the bracket plate being detachably fixed together by threaded fasteners, the longitudinal limit baffle and the bracket plate can also be detachably fixed together by threaded fasteners. Even the transverse limit baffle and the bracket plate, and the longitudinal limit baffle and the bracket plate can also be detachably fixed together by threaded fasteners at the same time, which can also achieve good technical effects. In addition, the elastic layer can also be located only at one or two places between the longitudinal limit baffle and the vibration absorber, between the transverse limit baffle and the vibration absorber, and between the bracket plate and the vibration absorber. In practice, it can be arranged according to the actual needs of the project. Furthermore, in addition to being fixed to the structure to be damped by bolts, the fixed connecting plate can also be fixed by other means such as welding or riveting, which can also achieve good technical effects. The above technical solutions are all simple variations based on the technical principles of the present invention, which are only described in words without further illustrations, and are all within the scope of protection required by the present invention.

[0039] The embodiments in the present invention are only for better illustrating the technical solutions of the present invention and should not be regarded as limiting the present invention. The technical features in many embodiments can also be used interchangeably. Based on the technical principles of the present invention, those skilled in the art can recombine the technical solutions described in the above embodiments or simply replace some of the components therein with similar technologies. As long as they are based on the technical principles of the present invention, they are within the scope of protection required by the present invention.

Claims

1. A vibration absorber anti-drop limiter tooling, comprising a fixing device and a limiter, characterized in that The fixing device and the limiting device are integrated or detachably connected together, and the limiting device includes a longitudinal limiting structure and a transverse limiting structure; The fixing device includes a positioning clamp and a positioning locking fastener.

2. The anti-drop limit fixture for the vibration absorber according to claim 1 is characterized in that The longitudinal limiting structure is composed of a local positioning clamp, and the transverse limiting structure includes a limiting retaining ring integrated with the positioning clamp. The inner cavity contour shape of the limiting retaining ring at least partially corresponds to the outer contour of the vibration absorber and is allowed to partially surround the end of the vibration absorber.

3. The anti-drop limit fixture for the vibration absorber according to claim 1 is characterized in that The longitudinal limiting structure is composed of a local positioning clamp, and the transverse limiting structure includes a limiting ring, on which a connecting plate is fixedly arranged. The connecting plate is detachably fixed to the positioning clamp through threaded fasteners. The inner cavity contour shape of the limiting ring corresponds at least partially to the outer contour of the vibration absorber, and is allowed to partially surround the end of the vibration absorber.

4. The anti-drop limit fixture for the vibration absorber according to claim 2 or 3, characterized in that An elastic layer is provided on the surface where the position-limiting retaining ring cooperates with the vibration absorber, or a gap is left between the position-limiting retaining ring and the vibration absorber.

5. The anti-drop limit fixture for the vibration absorber according to claim 1 is characterized in that An elastic layer is provided on the clamping surface of the positioning clamp.

6. The anti-drop limit fixture for the vibration absorber according to claim 1 is characterized in that The fixing device includes a fixing connecting plate, which is fixed to the object to be damped by welding, riveting, or bolting, or is adhered to the surface of the object to be damped by adhesive.

7. The anti-drop limit fixture for the vibration absorber according to claim 6, characterized in that The transverse limiting structure includes a bracket plate integrated with the fixed connecting plate and a transverse limiting baffle integrated on the bracket plate. The longitudinal limiting structure is a longitudinal limiting baffle, and the longitudinal limiting baffle is integrated with the bracket plate.

8. The anti-drop limit fixture for the vibration absorber according to claim 6, characterized in that The transverse limiting structure includes a bracket plate that is detachably integrated with the fixed connecting plate and a transverse limiting baffle fixed on the bracket plate. The longitudinal limiting structure is a longitudinal limiting baffle. The transverse limiting baffle and / or the longitudinal limiting baffle are detachably fixed to the bracket plate through threaded fasteners.

9. The anti-drop limit fixture for the vibration absorber according to claim 7 or 8, characterized in that An elastic layer is provided between the longitudinal limit baffle and the vibration absorber, or / and between the transverse limit baffle and the vibration absorber, or / and between the bracket plate and the vibration absorber.

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