Vibration damping structure and traction machine vibration damper

Abstract

The utility model relates to a vibration damping structure, which is used for connecting a mounting frame and a base of a vibration damper of a traction machine, and comprises a first shell, a second shell and a vibration damper, the second shell is used for being fixedly connected with the base; the vibration reduction part is connected with the first shell and the second shell; the vibration reduction part comprises the first vibration reduction layer and the second vibration reduction layer which are arranged in a stacked mode, the first vibration reduction layer and the second vibration reduction layer are made of different vibration reduction materials, and the vibration reduction structure has the advantage that the vibration reduction effect of the vibration reduction part is improved while the stability of the vibration reduction structure is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration reduction, in particular to a vibration reduction structure and a traction machine vibration reducer. Background Art

[0002] The elevator hoist, also known as the main unit, is the elevator's power source. Its function is to transmit and transfer the power that powers the elevator. Existing hoists are mounted on load-bearing steel beams, the ends of which are fixed within the building's shear walls. During elevator operation, the hoist generates vibrations, which are transmitted through the load-bearing steel beams into the shear walls and then to the residents, creating noise that affects sleep and physical and mental health. Therefore, to reduce noise, existing solutions typically incorporate a hoist vibration damper between the hoist and the load-bearing steel beams. This damper absorbs and dissipates vibration energy, thereby reducing noise.

[0003] The vibration-damping structure of the existing traction machine vibration absorber mainly comprises two structures: vibration-damping rubber or vibration-damping rubber and spring assembly. Among them, the vibration-damping rubber structure is simple and has a relatively poor vibration-damping effect. On the other hand, the vibration-damping rubber and spring assembly is unstable because the spring is easily deformed away from the axial direction.

[0004] Therefore, it is urgent for those skilled in the art to provide a vibration reduction structure and a traction machine vibration reducer to increase the vibration reduction effect of the vibration reduction part without affecting the stability of the vibration reduction structure. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the defects in the prior art, thereby providing a vibration reduction structure and a traction machine vibration reducer.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A vibration-damping structure for connecting a mounting frame and a base of a traction machine vibration damper, comprising: a first shell for fixedly connecting to the mounting frame; a second shell for fixedly connecting to the base; a vibration-damping portion connecting the first shell and the second shell; the vibration-damping portion comprising a first vibration-damping layer and a second vibration-damping layer stacked, wherein the first vibration-damping layer and the second vibration-damping layer are configured with different vibration-damping materials.

[0008] Preferably, at least the first vibration-damping layer is provided with a plurality of layers; and from the first shell toward the second shell, the first vibration-damping layers and the second vibration-damping layers are stacked alternately in sequence.

[0009] Preferably, the first vibration-damping layer has two layers, and the second vibration-damping layer has one layer; the second vibration-damping layer is located between the two layers of the first vibration-damping layer.

[0010] Preferably, both layers of the first vibration-damping layer are configured as rubber layers, and the two rubber layers are adhered to the first shell and the second shell respectively; and / or, each layer of the first vibration-damping layer is provided with a groove on one side close to the second vibration-damping layer, and both ends of the second vibration-damping layer are embedded in the two grooves.

[0011] Preferably, an anti-contact gap is provided between the side wall surface of the vibration-damping portion and the first shell and the second shell.

[0012] Preferably, it also includes an anti-separation component connecting the first shell and the second shell; the anti-separation component includes a connecting bolt, a locking nut and a flexible member; the connecting bolt passes through the first shell and the second shell from the upper end of the first shell, and is threadedly connected to the locking nut located at the lower end of the second shell; the flexible member is located between the first shell and the connecting bolt to separate the first shell and the connecting bolt.

[0013] Preferably, the anti-separation component further includes a rigid gasket; the rigid gasket and the flexible member are both sleeved on the connecting bolt, the lower end surface of the rigid gasket abuts against the flexible member, and the upper end surface of the rigid gasket abuts against the connecting bolt.

[0014] Preferably, the central axis direction of the connecting bolt is parallel to the deformation direction of the vibration damping part.

[0015] Preferably, it further comprises an anti-separation component connecting the first shell and the second shell; the anti-separation component is symmetrically arranged with respect to the vibration-damping part.

[0016] A traction machine vibration absorber comprises a mounting frame and a base, and also comprises a plurality of vibration-damping structures as described above; the mounting frame and the base are connected via the vibration-damping structures.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The vibration damping structure provided in the above technical solution can ensure the stability of the entire vibration damping part by configuring the vibration damping part to be composed of a first vibration damping layer and a second vibration damping layer that are stacked. The first vibration damping layer and the second vibration damping layer are configured with different vibration damping materials. The vibration damping materials of different materials have different resonance frequencies and target different effective vibration damping frequency bands. By stacking the first vibration damping layer and the second vibration damping layer (multiple materials), the vibration damping frequency band of the vibration damper can be increased, thereby expanding the application range of the vibration damper. The entire vibration damping part can be increased to damp vibrations of different frequencies and amplitudes of the traction machine, thereby increasing the vibration damping range and vibration damping effect of the entire vibration damping part. Similarly, the vibration damper for the traction machine provided by the above solution has a better vibration damping range and vibration damping effect by configuring the above vibration damping structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a structural diagram of Example 1 of the present utility model.

[0021] Figure 2 for Figure 1 Schematic cross-section diagram.

[0022] Figure 3 for Figure 2 Enlarged schematic diagram of position A in the middle.

[0023] Figure 4 This is a structural diagram of the second embodiment of the present utility model.

[0024] Figure 5 for Figure 4 Explosion diagram.

[0025] Description of reference numerals:

[0026] 100. Mounting frame; 200. Base; 1. First shell; 11. First pressure plate; 12. First side plate; 13. First connecting plate; 2. Second shell; 21. Second pressure plate; 22. Second side plate; 23. Second connecting plate; 3. Vibration damping part; 31. First vibration damping layer; 310. Groove; 32. Second vibration damping layer; 4. Anti-contact gap; 5. Anti-detachment assembly; 51. Connecting bolt; 52. Locking nut; 53. Flexible part; 531. Annular groove; 54. Rigid gasket. DETAILED DESCRIPTION

[0027] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0030] Example 1

[0031] See also Figures 1 to 3 The embodiment of the present invention provides a vibration reduction structure for use in a traction machine vibration damper, connecting the mounting frame 100 of the traction machine vibration damper and the base 200 of the traction machine vibration damper. Of course, the vibration reduction structure of the present application can also be used in other equipment requiring vibration reduction, by correspondingly connecting two structures requiring vibration reduction.

[0032] Specifically, in this embodiment, the vibration-damping structure includes a first housing 1, a second housing 2, and a vibration-damping unit 3. The first housing 1 is fixedly connected to the mounting bracket 100, and the second housing 2 is fixedly connected to the base 200. The vibration-damping unit 3 connects the first and second housings 1 and 2, thereby achieving a vibration-damping effect between the first and second housings 1 and 2 (i.e., the mounting bracket 100 and the base 200). It should be noted that there is no rigid connection between the first and second housings 1 and 2, between the first housing 1 and the base 200, or between the second housing 2 and the mounting bracket 100. There is also no rigid connection between the mounting bracket 100 and the base 200.

[0033] Furthermore, the vibration damping part 3 includes a first vibration damping layer 31 and a second vibration damping layer 32 that are stacked, which can increase the installation stability of the entire vibration damping part 3 .

[0034] Furthermore, the first vibration-damping layer 31 and the second vibration-damping layer 32 are configured with different vibration-damping materials. Vibration-damping materials of different materials have different resonance frequencies and target different effective vibration-damping frequency ranges. By superimposing the first vibration-damping layer 31 and the second vibration-damping layer 32, the vibration-damping frequency range of the vibration damper can be increased, thereby expanding the application range of the vibration damper. In addition, the entire vibration-damping unit 3 can be increased to damp vibrations of different frequencies and amplitudes of the traction machine, thereby increasing the vibration-damping range and vibration-damping effect of the entire vibration-damping unit 3.

[0035] There are various stacking methods for the first vibration-damping layer 31 and the second vibration-damping layer 32 , as long as the vibration-damping range and vibration-damping effect of the vibration-damping part 3 are avoided from being increased.

[0036] To further enhance the vibration damping effect, in this embodiment, the first vibration damping layer 31 comprises two layers, and the second vibration damping layer 32 comprises one layer. From the first shell 1 toward the second shell 2, the first and second vibration damping layers 31, 32 are alternately stacked, with the second vibration damping layer 32 positioned between the two layers of the first vibration damping layer 31. This increases the contact area between the first and second vibration damping layers 31, 32. Furthermore, the direction of the force acting between the first and second vibration damping layers 31, 32 is parallel to the direction from the first shell 1 to the second shell 2 (i.e., the vibration direction), resulting in a better vibration damping effect. Of course, in other embodiments, the first and second vibration damping layers 31, 32 may be alternately stacked in two, four, five, or more layers. Alternatively, three, four, or more layers of the first vibration damping layer 31 may be provided, while only one layer of the second vibration damping layer 32 is provided. In other words, the vibration damping portion 3 is configured as a multi-layer structure, wherein at least one layer (the second vibration damping layer 32) utilizes a different vibration damping material than the remaining layers (the first vibration damping layer 31).

[0037] In order to increase the connection strength between the vibration damping part 3 and the first shell 1 and between the vibration damping part 3 and the second shell 2, the two first vibration damping layers 31 are both configured as rubber layers, and the two rubber layers are respectively adhered to the first shell 1 and the second shell 2.

[0038] To ensure a stable connection between the first and second vibration-damping layers 31, 32, each first vibration-damping layer 31 is provided with a groove 310 on one side thereof adjacent to the second vibration-damping layer 32. Both ends of the second vibration-damping layer 32 are embedded in the two grooves 310. Furthermore, the first and second vibration-damping layers 31, 32 are expansion-bonded or bonded.

[0039] In order to prevent the vibration damping portion 3 from being subjected to forces in non-vibration directions and thus affecting its vibration damping effect, in this embodiment, anti-contact gaps 4 are provided between the sidewalls of the vibration damping portion 3 and both the first shell 1 and the second shell 2 .

[0040] In order to prevent the first shell 1 and the second shell 2 from being separated from each other during vibration, in this embodiment, an anti-separation component 5 connecting the first shell 1 and the second shell 2 is further included.

[0041] Specifically, the anti-separation assembly 5 is symmetrically arranged with respect to the vibration damping unit 3. It is understood that, in an optimal state, the vibration damping unit 3 is located between the first housing 1 and the second housing 2 and applies a force to the first and second housings 1 and 2 in the opposite direction of the vibration. However, when the forces acting on the vibration damping unit 3 itself are unbalanced, it is prone to tilting. The force applied by the vibration damping unit 3 to the first and second housings 1 and 2 can easily deviate from the vibration direction, affecting the vibration damping effect. The symmetrical arrangement of the anti-separation assembly 5 with respect to the vibration damping unit 3 ensures balanced forces on the vibration damping unit 3 and prevents the anti-separation assembly 5 from affecting its vibration damping effect.

[0042] Specifically, the anti-separation assembly 5 includes a connecting bolt 51, a locking nut 52, and a flexible member 53. The connecting bolt 51 extends from the upper end of the first housing 1 through the first and second housings 1 and is threadedly connected to the locking nut 52 at the lower end of the second housing 2. The flexible member 53 is located between the first housing 1 and the connecting bolt 51 to separate the first housing 1 from the connecting bolt 51. Of course, in other embodiments, the connecting bolt 51 may also extend from the lower end of the second housing 2 through the first and second housings 1 and 2 and be threadedly connected to the locking nut 52 at the upper end of the first housing 1. The flexible member 53 is located between the second housing 2 and the connecting bolt 51 to separate the second housing 2 from the connecting bolt 51.

[0043] In order to achieve stable installation and vibration reduction effect of the flexible member 53 , the flexible member 53 can be configured as a rubber ring, and an annular groove 531 is provided on the outer wall of the flexible member 53 to cooperate with the through hole provided on the first shell 1 .

[0044] Since the flexible part 53 will produce a certain deformation during the vibration reduction process, in order to avoid the deformation of the flexible part 53 causing the connecting bolt 51 to tilt, in this embodiment, the anti-separation component 5 also includes a rigid gasket 54; the rigid gasket 54 and the flexible part 53 are both mounted on the connecting bolt 51, the lower end face of the rigid gasket 54 is against the flexible part 53, and the upper end face of the rigid gasket 54 is against the connecting bolt 51.

[0045] Furthermore, the central axis direction of the connecting bolt 51 is parallel to the deformation direction of the vibration damping part 3 , that is, the central axis direction of the connecting bolt 51 is parallel to the vibration direction of the equipment.

[0046] The first shell 1 and the second shell 2 can be configured in a variety of structures. In this embodiment, the first shell 1 is approximately U-shaped and includes a first pressure plate 11. A first side plate 12 is connected to each side of the first pressure plate 11. Each first side plate 12 is connected to a first connecting plate 13. The first side plate 12 extends from the first pressure plate 11 to the second shell 2, and the first connecting plates 13 are parallel to the first pressure plate 11. Similarly, the second shell 2 is approximately U-shaped and includes a second pressure plate 21. A second side plate 22 is connected to each side of the second pressure plate 21. Each second side plate 22 is connected to a second connecting plate 23. The second side plates 22 extend from the second pressure plate 21 to the first shell 1. The second connecting plates 23 are parallel to the second pressure plate 21. This can reduce the length of the connecting bolts 51 to a certain extent, while reserving installation space to facilitate the installation of the vibration damping structure. Of course, in other embodiments, the first shell 1 and the second shell 2 can also be directly configured as a single flat plate.

[0047] Example 2

[0048] See also Figure 4 and Figure 5 Based on the above embodiment 1, this embodiment further provides a traction machine vibration absorber, comprising a mounting frame 100, a base 200, and several vibration damping structures of the above embodiment 1. The mounting frame 100 and the base 200 are connected via the vibration damping structure.

[0049] Specifically, multiple vibration-damping structures are arranged in a linear array along the length of the mounting frame 100 and the base 200. The number of vibration-damping structures can be set according to the length of the mounting frame 100 and the base 200. Of course, in other embodiments, when the mounting frame 100 and the base 200 are rectangular, multiple vibration-damping structures can also be arranged in an array along both the length and width of the mounting frame 100 and the base 200; when the mounting frame 100 and the base 200 are circular, the vibration-damping structures can also be distributed in a circular array in several circles. By providing multiple vibration-damping structures, on the one hand, the stability of the traction machine vibration absorber can be increased, thereby increasing the overall stability of the traction machine; on the other hand, the vibration-damping range and vibration-damping effect of the traction machine vibration absorber can be increased.

[0050] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A vibration damping structure for connecting a mounting frame (100) and a base (200) of a traction machine vibration damper, characterized in that: include: A first housing (1) for fixedly connecting to the mounting frame (100); A second shell (2) is used for being fixedly connected to the base (200); A vibration damping portion (3) connects the first shell (1) and the second shell (2); the vibration damping portion (3) comprises a first vibration damping layer (31) and a second vibration damping layer (32) stacked together, wherein the first vibration damping layer (31) and the second vibration damping layer (32) are configured to be made of different vibration damping materials.

2. A vibration damping structure according to claim 1, characterized in that: At least the first vibration damping layer (31) is provided with a plurality of layers; From the first shell (1) to the second shell (2), the first vibration-damping layer (31) and the second vibration-damping layer (32) are alternately stacked in sequence.

3. A vibration damping structure according to claim 2, characterized in that: The first vibration-damping layer (31) has two layers, and the second vibration-damping layer (32) has at least one layer; The second vibration-damping layer (32) is located between two layers of the first vibration-damping layers (31).

4. A vibration damping structure according to claim 3, characterized in that: The two first vibration-damping layers (31) are both configured as rubber layers, and the two rubber layers are respectively adhered to the first shell (1) and the second shell (2); and / or, A groove (310) is provided on one side of each first vibration-damping layer (31) close to the second vibration-damping layer (32), and two ends of the second vibration-damping layer (32) are embedded in the two grooves (310).

5. The vibration damping structure according to claim 1, characterized in that: Anti-contact gaps (4) are provided between the side wall surface of the vibration-damping portion (3) and the first shell (1) and the second shell (2).

6. The vibration damping structure according to claim 1, characterized in that: It also includes an anti-separation component (5) connecting the first shell (1) and the second shell (2); The anti-separation assembly (5) comprises a connecting bolt (51), a locking nut (52) and a flexible member (53); The connecting bolt (51) passes through the first shell (1) and the second shell (2) from the upper end of the first shell (1) and is threadedly connected to the locking nut (52) located at the lower end of the second shell (2); The flexible member (53) is located between the first shell (1) and the connecting bolt (51) to separate the first shell (1) and the connecting bolt (51).

7. A vibration damping structure according to claim 6, characterized in that: The anti-separation component (5) further includes a rigid gasket (54); The rigid gasket (54) and the flexible member (53) are both sleeved on the connecting bolt (51), the lower end surface of the rigid gasket (54) abuts against the flexible member (53), and the upper end surface of the rigid gasket (54) abuts against the connecting bolt (51).

8. The vibration damping structure according to claim 6, characterized in that: The central axis direction of the connecting bolt (51) is parallel to the deformation direction of the vibration damping part (3).

9. The vibration damping structure according to claim 1, characterized in that: It also includes an anti-separation component (5) connecting the first shell (1) and the second shell (2); The anti-separation component (5) is symmetrically arranged with respect to the vibration damping portion (3).

10. A traction machine vibration absorber, comprising a mounting frame (100) and a base (200), characterized in that: Also includes a plurality of vibration reduction structures according to any one of claims 1 to 9 above; The mounting frame (100) and the base (200) are connected via the vibration reduction structure.

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