A gear case vibration noise suppression bushing

Abstract

The utility model discloses a gear box's vibration noise suppression bushing relates to gear box accessory technical field, including bushing casing and protection subassembly, bushing casing is integrated structure, and bushing casing adopts cast iron material, protection subassembly sets up in bushing casing surface, and protection subassembly includes metal framework, high damping rubber layer, reinforcing rib braiding, porous sound absorption layer, metal reinforcing layer and epoxy resin protective layer, bushing casing inboard surface is provided with metal framework, and metal framework is integrated structure, the surface embedding of metal framework has high damping rubber layer. The gear box's vibration noise suppression bushing, through protection subassembly makes the device effectively suppressed vibration and noise, and greatly promoted the bearing capacity, makes it not easy to deform damage, effectively prolongs its service life, through the installation component makes the device dynamic pre -tightening adjustment and multiple sealing mechanism integration in an organic whole, avoids the vibration aggravation due to the installation gap.

Description

Technical Field

[0001] This utility model relates to the technical field of gearbox accessories, specifically a vibration and noise suppression bushing for a gearbox body. Background Technology

[0002] A gearbox is a mechanical device that transmits power and regulates speed through gear meshing. Its core functions include speed change, torque change, and changing the direction of transmission. It is widely used in automobiles, industrial machinery, wind power generation, and other fields, matching different working conditions through gear combinations. Currently, in order to protect the gearbox housing bore walls, gear journals, and transmission system from friction damage, gearbox bushings are usually used for protection.

[0003] Gearbox bushings on the market are usually imperfect protective mechanisms, which cannot suppress vibration and noise during use, and have poor load-bearing capacity, resulting in a short service life. To address this, we propose a vibration and noise suppression bushing for gearboxes. Utility Model Content

[0004] The purpose of this invention is to provide a vibration and noise suppression bushing for a gearbox to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vibration and noise suppression bushing for a gearbox, comprising a bushing housing and a protective component. The bushing housing is an integral structure made of cast iron. The protective component is disposed on the surface of the bushing housing and includes a metal frame, a high-damping rubber layer, a reinforcing rib woven mesh, a porous sound-absorbing layer, a metal reinforcement layer, and an epoxy resin protective layer. The inner surface of the bushing housing is provided with a metal frame, which is an integral structure. A high-damping rubber layer is embedded in the surface of the metal frame, and a reinforcing rib woven mesh is installed on the inner surface of the metal frame. The outer surface of the reinforcing rib woven mesh is tightly connected to the inner surface of the metal frame, and a porous sound-absorbing layer is disposed on the inner surface of the reinforcing rib woven mesh.

[0006] Furthermore, the porous sound-absorbing layer has a porous honeycomb structure, and a metal reinforcement layer is installed on the inner surface of the porous sound-absorbing layer.

[0007] Furthermore, the inner surface of the metal reinforcement layer is coated with an epoxy resin protective layer, and the metal reinforcement layer is an integral structure.

[0008] Furthermore, the metal reinforcement layer, porous sound-absorbing layer, reinforcing rib woven mesh, and metal skeleton are arranged sequentially from the inside out, and the metal reinforcement layer and porous sound-absorbing layer are hot-pressed composite connected.

[0009] Furthermore, the bushing housing sidewall has a central control structure, and the bushing housing surface is provided with mounting components for assisting installation.

[0010] Furthermore, the mounting assembly includes a spring washer, an elastic sealing layer, and a sealing gasket, with the spring washer disposed on the lower surface of the bushing housing.

[0011] Furthermore, an elastic sealing layer is provided on the outer surface of the bushing housing, and a sealing gasket is connected to the top of the bushing housing.

[0012] Furthermore, the mounting assembly also includes a mounting auxiliary ring and fasteners, and the upper surface of the bushing housing is provided with a mounting auxiliary ring, the surface of which is threaded with fasteners.

[0013] This utility model provides a vibration and noise suppression bushing for a gearbox housing, which has the following beneficial effects: 1. This utility model incorporates a protective component, comprising a metal frame, a high-damping rubber layer, a reinforcing woven mesh, a porous sound-absorbing layer, a metal reinforcement layer, and an epoxy resin protective layer. In use, the steel metal frame is embedded within the bushing shell to enhance its load-bearing capacity. The high-damping rubber layer embedded in the metal frame converts vibrational energy into heat energy through molecular chain friction, absorbing high-frequency vibrations of the gearbox and suppressing resonance. The reinforcing woven mesh increases the overall hardness of the bushing shell, making it less prone to deformation. The porous sound-absorbing layer, with its porous honeycomb structure, significantly reduces structural noise while maintaining structural stability. The metal reinforcement layer further strengthens the overall structure of the bushing shell, and the epoxy resin protective layer improves the wear resistance of the inner surface. This effectively suppresses vibration and noise, greatly enhances its load-bearing capacity, prevents deformation and damage, and effectively extends its service life.

[0014] 2. This utility model incorporates an installation assembly, including a spring washer, an elastic sealing layer, and a sealing gasket. The assembly also includes an auxiliary installation ring and fasteners. In use, the bushing is installed at the gearbox mounting position, with the auxiliary installation ring aligning with the mounting position surface. The auxiliary installation ring is then tightened to secure the auxiliary installation ring to the mounting position. The spring washer controls the preload, eliminating axial clearance. The elastic sealing layer effectively fills the gap between the bushing and the mounting position, enhancing the tightness of the installation. The sealing gasket further improves the sealing performance. This device integrates dynamic preload adjustment and multiple sealing mechanisms, preventing increased vibration due to installation gaps. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of a vibration and noise suppression bushing for a gearbox according to the present invention; Figure 2 This is a three-dimensional structural diagram of a protective component for a vibration and noise suppression bushing of a gearbox according to the present invention. Figure 3 This is a three-dimensional structural diagram of the mounting assembly for a vibration and noise suppression bushing of a gearbox according to the present invention.

[0016] In the diagram: 1. Bushing housing; 2. Protective components; 201. Metal frame; 202. High-damping rubber layer; 203. Reinforcing rib woven mesh; 204. Porous sound-absorbing layer; 205. Metal reinforcement layer; 206. Epoxy resin protective layer; 3. Mounting components; 301. Spring washer; 302. Elastic sealing layer; 303. Sealing gasket; 304. Mounting auxiliary ring; 305. Fasteners. Detailed Implementation

[0017] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0018] like Figures 1 to 3 As shown, a vibration and noise suppression bushing for a gearbox includes a bushing housing 1 and a protective component 2. The bushing housing 1 is an integral structure made of cast iron. The protective component 2 is disposed on the surface of the bushing housing 1 and includes a metal frame 201, a high-damping rubber layer 202, a reinforcing rib woven mesh 203, a porous sound-absorbing layer 204, a metal reinforcement layer 205, and an epoxy resin protective layer 206. The metal frame 201 is disposed on the inner surface of the bushing housing 1 and is an integral structure. The high-damping rubber layer 202 is embedded in the surface of the metal frame 201, and the inner surface of the metal frame 201 is fitted with reinforcing ribs. The outer surface of the woven mesh 203 and the inner surface of the metal frame 201 are tightly connected. The inner surface of the woven mesh 203 is provided with a porous sound-absorbing layer 204, which has a porous honeycomb structure. A metal reinforcement layer 205 is installed on the inner surface of the porous sound-absorbing layer 204. The inner surface of the metal reinforcement layer 205 is coated with an epoxy resin protective layer 206. The metal reinforcement layer 205 is an integrated structure. The metal reinforcement layer 205, the porous sound-absorbing layer 204, the woven mesh 203 and the metal frame 201 are arranged sequentially from the inside to the outside. The metal reinforcement layer 205 and the porous sound-absorbing layer 204 are connected by hot pressing.

[0019] The specific operation is as follows: During use, a steel metal skeleton 201 is embedded in the bushing housing 1 to enhance the load-bearing capacity of the bushing housing 1. A high-damping rubber layer 202 is embedded on the surface of the metal skeleton 201, which converts vibration energy into heat energy through molecular chain friction, thus absorbing high-frequency vibration of the gearbox and suppressing housing resonance. The reinforcing rib woven mesh 203 can improve the overall hardness of the bushing housing 1, making it less prone to deformation. The porous sound-absorbing layer 204, through its porous honeycomb structure, can significantly reduce structural noise on the basis of stabilizing the structure. The metal reinforcement layer 205 can further reinforce the overall structure of the bushing housing 1. The epoxy resin protective layer 206 can improve the wear resistance of the inner surface.

[0020] Please refer to Figure 3 The bushing housing 1 has a central control structure on its side wall, and the bushing housing 1 is provided with an installation component 3 for auxiliary installation. The installation component 3 includes a spring washer 301, an elastic sealing layer 302 and a sealing gasket 303. The spring washer 301 is provided on the lower surface of the bushing housing 1, the elastic sealing layer 302 is provided on the outer surface of the bushing housing 1, and the sealing gasket 303 is connected to the top of the bushing housing 1. The installation component 3 also includes an installation auxiliary ring 304 and a fastener 305. The installation auxiliary ring 304 is provided on the upper surface of the bushing housing 1, and the fastener 305 is threadedly connected to the surface of the installation auxiliary ring 304. The specific operation is as follows: When in use, install the bushing at the mounting position of the gearbox, align the mounting auxiliary ring 304 with the surface of the mounting position, and tighten the mounting auxiliary ring 304 with the mounting position using fasteners 305. Control the preload force using spring washers 301 to eliminate axial clearance. The elastic sealing layer 302 can effectively fill the gap between the bushing and the mounting position, enhancing the tightness of the installation. The sealing gasket 303 can further improve the sealing performance of the installation.

[0021] In summary, as Figures 1 to 3As shown, the vibration and noise suppression bushing of this gearbox housing is used by first installing the bushing at the mounting position on the gearbox, aligning the mounting auxiliary ring 304 with the surface of the mounting position, and then tightening the mounting auxiliary ring 304 to the mounting position using fasteners 305. The preload is controlled by spring washers 301 to eliminate axial clearance. The elastic sealing layer 302 effectively fills the gap between the bushing and the mounting position, enhancing the tightness of the installation. The sealing gasket 303 further improves the sealing performance. During the use of this device, a steel metal frame 201 is embedded within the bushing housing 1. To enhance the load-bearing capacity of the bushing housing 1, a high-damping rubber layer 202 is embedded on the surface of the metal skeleton 201. Through molecular chain friction, the vibration energy is converted into heat energy, which can absorb the high-frequency vibration of the gearbox and suppress the resonance of the housing. The reinforcing rib woven mesh 203 can improve the overall hardness of the bushing housing 1, making it less prone to deformation. The porous sound-absorbing layer 204, through its porous honeycomb structure, can significantly reduce structural noise while stabilizing the structure. The metal reinforcement layer 205 can further reinforce the overall structure of the bushing housing 1. The epoxy resin protective layer 206 can improve the wear resistance of the inner surface.

[0022] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A vibration and noise suppression bushing for a gearbox housing, comprising a bushing housing (1) and a protective assembly (2), characterized in that: The bushing housing (1) is an integral structure and is made of cast iron. The protective component (2) is disposed on the surface of the bushing housing (1) and includes a metal frame (201), a high-damping rubber layer (202), a reinforcing rib woven mesh (203), a porous sound-absorbing layer (204), a metal reinforcement layer (205), and an epoxy resin protective layer (206). The inner surface of the bushing housing (1) is provided with a metal frame (201) and the metal frame (201) is an integral structure. The surface of the metal frame (201) is embedded with a high-damping rubber layer (202) and the inner surface of the metal frame (201) is installed with a reinforcing rib woven mesh (203). The outer surface of the reinforcing rib woven mesh (203) is tightly connected to the inner surface of the metal frame (201) and the inner surface of the reinforcing rib woven mesh (203) is provided with a porous sound-absorbing layer (204).

2. The vibration and noise suppression bushing for a gearbox as described in claim 1, characterized in that, The porous sound-absorbing layer (204) has a porous honeycomb structure, and a metal reinforcement layer (205) is installed on the inner surface of the porous sound-absorbing layer (204).

3. The vibration and noise suppression bushing for a gearbox as described in claim 1, characterized in that, The inner surface of the metal reinforcement layer (205) is coated with an epoxy resin protective layer (206), and the metal reinforcement layer (205) is an integrated structure.

4. The vibration and noise suppression bushing for a gearbox as described in claim 1, characterized in that, The metal reinforcement layer (205), the porous sound-absorbing layer (204), the reinforcing rib woven mesh (203), and the metal skeleton (201) are arranged sequentially from the inside to the outside, and the metal reinforcement layer (205) and the porous sound-absorbing layer (204) are connected by hot pressing.

5. The vibration and noise suppression bushing for a gearbox as described in claim 1, characterized in that, The bushing housing (1) has a central control structure on its side wall, and the bushing housing (1) is provided with an installation component (3) for auxiliary installation on its surface.

6. The vibration and noise suppression bushing for a gearbox as described in claim 5, characterized in that, The mounting assembly (3) includes a spring washer (301), an elastic sealing layer (302), and a sealing gasket (303), with the spring washer (301) disposed on the lower surface of the bushing housing (1).

7. The vibration and noise suppression bushing for a gearbox as described in claim 1, characterized in that, The outer surface of the bushing housing (1) is provided with an elastic sealing layer (302), and a sealing gasket (303) is connected to the top of the bushing housing (1).

8. The vibration and noise suppression bushing for a gearbox as described in claim 5, characterized in that, The mounting assembly (3) further includes a mounting auxiliary ring (304) and a fastener (305), and the upper surface of the bushing housing (1) is provided with a mounting auxiliary ring (304), and the surface of the mounting auxiliary ring (304) is threaded with a fastener (305).

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