Noise reduction device for bearing machining

Abstract

The utility model relates to the technical field of noise reduction devices, in particular to a noise reduction device for bearing machining, which comprises a noise reduction pad and anti-skid particles, the anti-skid particles are fixedly connected to the lower side of the noise reduction pad, a vibration and noise reduction mechanism is arranged on the inner side of the noise reduction pad, the vibration and noise reduction mechanism comprises a fixed cylinder, and the inner side of the fixed cylinder is tightly attached to a rubber ring sleeve. A movable bearing table is slidably connected to the inner side of the rubber ring sleeve, a piston sleeve sleeves the outer side of the movable bearing table, the lower side of the piston sleeve is tightly attached to the upper end of the noise reduction spring, a connecting through hole is formed in the inner side of the side edge of the lower end of the fixing cylinder, and a damping vibration attenuation assembly is fixedly connected to the outer side of the fixing cylinder and comprises a communicating pipe; according to the multi-layer structure design and the hydraulic damping principle, effective buffering of mechanical vibration and remarkable reduction of noise are achieved, and the vibration reduction and noise reduction performance and stability of the device are further enhanced through structural optimization and detailed design of each further-implemented scheme.

Description

Technical Field

[0001] This utility model relates to the field of noise reduction device technology, specifically a noise reduction device for bearing processing. Background Technology

[0002] The noise reduction device for bearing processing is a device or system used to reduce the noise generated during the bearing processing. Its main purpose is to reduce the impact of noise on the workshop environment and workers. The noise reduction device for bearing processing effectively reduces noise pollution during the processing through a variety of physical and intelligent technologies, providing a more environmentally friendly and comfortable working environment for the bearing processing workshop.

[0003] During the bearing manufacturing process, processes such as turning, grinding, and polishing generate high-intensity mechanical noise. This noise not only affects the workshop working environment but may also damage the hearing health of operators. Common noise reduction devices for bearing processing mainly achieve noise reduction effects through physical sound insulation, sound-absorbing materials, and active noise reduction technology.

[0004] In the process of bearing machining, precision fitting between various workpieces on a machine tool is typically used to achieve the machining of the bearing. During the machining process, the various internal components and the main body of the machine tool will inevitably vibrate to a certain extent. Since sound propagation is mainly generated by the vibration of objects, the machine tool used for bearing machining will generate a lot of vibration noise. At the same time, the machine tool used for bearing machining needs to be stably placed on a horizontal ground with support legs. Consequently, the vibration generated by the machine tool is easily transmitted to the horizontal ground through the machine tool support legs. As a result, the vibration noise generated by the machine tool resonates with the horizontal ground, leading to a large amount of vibration noise generated by the machine tool during the bearing machining process. Therefore, a noise reduction device for bearing machining is proposed to address the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a noise reduction device for bearing processing, so as to solve the problem that the vibration generated by the bearing processing machine tool is easily transmitted to the horizontal ground through the machine tool support feet, thereby causing the vibration noise generated by the bearing processing machine tool to resonate with the horizontal ground at the same frequency, resulting in large vibration noise of the machine tool during the bearing processing process.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A noise reduction device for bearing processing includes a noise reduction pad and anti-slip particles. The anti-slip particles are fixedly connected to the lower side of the noise reduction pad. A vibration damping and noise reduction mechanism is provided inside the noise reduction pad. The vibration damping and noise reduction mechanism includes a fixed cylinder. The inner side of the fixed cylinder is tightly attached to a rubber ring. A movable support platform is slidably connected to the inner side of the rubber ring. A piston sleeve is sleeved on the outer side of the movable support platform. The lower side of the piston sleeve is tightly attached to the upper end of a noise reduction spring. A connecting through hole is opened on the inner side of the lower end of the fixed cylinder. A damping vibration reduction component is fixedly connected to the outer side of the fixed cylinder. The damping vibration reduction component includes a connecting pipe. A cover is fixedly connected to the outer side of the connecting pipe. A protective top is fixedly connected to the upper end of the connecting pipe. A liquid passage hole is opened on the inner side of the lower end of the connecting pipe. A pressure discharge hole is opened on the inner side of the upper end of the connecting pipe. An air inlet and outlet hole is opened on the inner side of the upper end of the connecting pipe.

[0008] As a further optimization of this utility model, the noise reduction pad has a trapezoidal cross-section, a groove is provided on the inner side of the noise reduction pad, the connecting pipe is engaged in the groove on the inner side of the noise reduction pad, and several anti-slip particles are evenly distributed at the end of the noise reduction pad with the largest diameter.

[0009] As a further optimization of this utility model, the lower end of the fixed cylinder is engaged in a groove in the noise reduction pad, the maximum diameter of the fixed cylinder is the same as the maximum diameter of the rubber ring and the movable support platform, the inner diameter of the movable support platform is the same as the maximum inner diameter of the piston sleeve, the noise reduction spring is disposed on the inner side of the fixed cylinder, and the lower end of the noise reduction spring is in close contact with the bottom of the inner side of the fixed cylinder.

[0010] As a further optimization of this utility model, the movable support platform has an upward-opening groove on its inner side, and slides close to the inner wall of the rubber ring. The movable support platform has an arc-shaped protrusion on its outer side, and the movable support platform is engaged with the piston sleeve through the arc-shaped protrusion on its outer side. The piston sleeve slides inside the fixed cylinder.

[0011] As a further optimization of this utility model, the side cross-section of the connecting pipe is "L" shaped, the connecting pipe is connected to the inside of the fixed cylinder through the connecting through hole, the section of the connecting pipe parallel to the fixed cylinder and the cover cylinder are on the same axis, and the liquid passage hole, pressure discharge hole and air inlet and outlet holes are all set on the section of the connecting pipe parallel to the fixed cylinder.

[0012] As a further optimization of this utility model, the liquid passage hole and the pressure discharge hole are both located on the inside of the connecting pipe completely covered by the cover. The pressure discharge hole is located on the upper side of the liquid passage hole. There are four liquid passage holes in total, which are evenly distributed on the inside of the connecting pipe. There are three pressure discharge holes in total, which are evenly distributed on the inside of the connecting pipe. The pressure discharge holes are flared outward from the inside of the connecting pipe.

[0013] As a further optimization of this utility model, there are five air inlets and outlets in total. The air inlets and outlets are evenly distributed inside the connecting pipe. The air inlets and outlets are located in the connecting pipe above the outer side of the cover cylinder. The air inlets and outlets are inside the coverage area of ​​the protective top. There is a gap between the lower end of the air inlet and outlet and the upper end of the cover cylinder.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this invention, the noise reduction device, through the arrangement of a fixed cylinder, rubber ring sleeve, movable support platform, noise reduction spring, and connecting pipe, significantly reduces vibration and noise during bearing processing through a multi-layer structure design and hydraulic damping principle. The noise reduction pad of the device adopts a trapezoidal column structure with grooves on the inner side, enhancing overall stability. At the same time, the distribution of anti-slip particles effectively prevents the device from sliding during operation, improving reliability. The tight fit between the fixed cylinder, rubber ring sleeve, movable support platform, and piston sleeve, combined with the elastic buffer of the noise reduction spring, further enhances the vibration reduction performance. The movable support platform is connected to the piston sleeve through an arc-shaped convex ring, reducing direct friction and noise. Meanwhile, the rubber ring sleeve further optimizes the vibration reduction and noise reduction effect.

[0016] The hydraulic damping system is connected to the fixed cylinder via an "L"-shaped connecting pipe. The rational layout of the fluid passage, pressure relief hole, and air inlet / outlet holes allows the hydraulic oil to flow smoothly within the device and balances the air pressure, enhancing the damping effect. The flared design of the pressure relief hole and the gap setting of the air inlet / outlet holes effectively prevent hydraulic oil from spraying out, avoiding waste, and stabilizing the operation of the device. In actual use, the device, by injecting lubricating hydraulic oil, utilizes the elastic compression of the spring and the damping effect of the hydraulic oil to greatly reduce the vibration and noise of bearing processing machinery, avoid mechanical resonance, improve the comfort of the processing environment, and extend the service life of the equipment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the fixed cylinder of this utility model;

[0019] Figure 3 This utility model Figure 2 Schematic diagram of the structure at point A in the middle;

[0020] Figure 4 This is a schematic diagram of the noise reduction pad structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the explosion structure of the noise reduction spring of this utility model;

[0022] Figure 6 This is a schematic diagram of the exploded structure of the connecting pipe of this utility model.

[0023] In the picture: 1. Noise-reducing pad; 2. Anti-slip particles;

[0024] 3. Vibration damping and noise reduction mechanism; 31. Fixed cylinder; 32. Rubber ring sleeve; 33. Movable support platform; 34. Piston sleeve; 35. Noise reduction spring; 36. Connecting through hole;

[0025] 37. Damping and vibration reduction components; 371. Connecting pipe; 372. Cover; 373. Protective top; 374. Liquid passage hole; 375. Pressure relief hole; 376. Air inlet and outlet holes. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0028] Please see Figure 1-6 This utility model provides a technical solution:

[0029] A noise reduction device for bearing processing includes a noise reduction pad 1 and anti-slip particles 2. The anti-slip particles 2 are fixedly connected to the lower side of the noise reduction pad 1. A vibration damping and noise reduction mechanism 3 is provided inside the noise reduction pad 1. The vibration damping and noise reduction mechanism 3 includes a fixed cylinder 31. The inner side of the fixed cylinder 31 is tightly attached to a rubber ring 32. A movable support platform 33 is slidably connected to the inner side of the rubber ring 32. A piston sleeve 34 is sleeved on the outer side of the movable support platform 33. The lower side of the piston sleeve 34 is tightly attached to the upper end of a noise reduction spring 35. The lower side of the fixed cylinder 31... A connecting through hole 36 is provided on the inner side of the end side. A damping vibration reduction component 37 is fixedly connected to the outer side of the fixed cylinder 31. The damping vibration reduction component 37 includes a connecting pipe 371. A cover 372 is fixedly connected to the outer side of the connecting pipe 371. A protective top 373 is fixedly connected to the upper end of the connecting pipe 371. A liquid passage hole 374 is provided on the inner side of the lower end of the connecting pipe 371. A pressure discharge hole 375 is provided on the inner side of the upper end of the connecting pipe 371. An air inlet and outlet hole 376 is provided on the inner side of the upper end of the connecting pipe 371.

[0030] As a further implementation of this solution, the side cross-section of the noise reduction pad 1 is a trapezoidal pedestal, and a groove is opened on the inner side of the noise reduction pad 1. The connecting pipe 371 is engaged in the groove opened on the inner side of the noise reduction pad 1. Several anti-slip particles 2 are evenly distributed at the end of the noise reduction pad 1 with the largest diameter. The trapezoidal pedestal structure of the noise reduction pad 1 and the groove design enhance the stability of the device. At the same time, the setting of anti-slip particles 2 effectively prevents the device from sliding during operation and improves the reliability of the device.

[0031] As a further implementation of this solution, the lower end of the fixed cylinder 31 is engaged in the groove opened in the noise reduction pad 1. The maximum diameter of the fixed cylinder 31 is the same as the maximum diameter of the rubber ring 32 and the movable support platform 33. The inner diameter of the movable support platform 33 is the same as the maximum inner diameter of the piston sleeve 34. The noise reduction spring 35 is set on the inner side of the fixed cylinder 31, and the lower end of the noise reduction spring 35 is in close contact with the bottom of the inner side of the fixed cylinder 31. Through the size matching design, the tight fit between the fixed cylinder 31, the rubber ring 32, the movable support platform 33 and the piston sleeve 34 is ensured. At the same time, the setting of the noise reduction spring 35 further enhances the vibration reduction effect and improves the overall vibration reduction performance of the device.

[0032] As a further implementation of this solution, the inner side of the movable support platform 33 is provided with an upward-opening groove. The movable support platform 33 slides tightly against the inner wall of the rubber ring sleeve 32. The outer side of the movable support platform 33 is provided with an arc-shaped convex ring. The movable support platform 33 is engaged with the piston sleeve 34 through the arc-shaped convex ring on the outer side. The piston sleeve 34 slides inside the fixed cylinder 31. The design of the groove and the arc-shaped convex ring makes the movable support platform 33 and the piston sleeve 34 tightly connected and slide smoothly. At the same time, the setting of the rubber ring sleeve 32 reduces direct friction, further reduces noise, and enhances the vibration reduction and noise reduction effect of the device.

[0033] As a further implementation of this scheme, the side cross-section of the connecting pipe 371 is "L" shaped. The connecting pipe 371 is connected to the inside of the fixed cylinder 31 through the connecting through hole 36. The section of the connecting pipe 371 that is parallel to the fixed cylinder 31 and the cover cylinder 372 are on the same axis. The liquid passage hole 374, the pressure discharge hole 375 and the air inlet and outlet holes 376 are all set on the section of the connecting pipe 371 that is parallel to the fixed cylinder 31. The design of the "L" shaped connecting pipe 371 and the reasonable layout of each hole allow the hydraulic oil to flow smoothly between the fixed cylinder 31 and the connecting pipe 371. At the same time, the setting of the pressure discharge hole 375 and the air inlet and outlet holes 376 effectively balances the air pressure and enhances the hydraulic damping effect of the device.

[0034] As a further implementation of this scheme, both the fluid passage hole 374 and the pressure discharge hole 375 are located inside the area completely covered by the cover 372 of the connecting pipe 371. The pressure discharge hole 375 is located above the fluid passage hole 374. There are four fluid passage holes 374, which are evenly distributed inside the connecting pipe 371. There are three pressure discharge holes 375, which are evenly distributed inside the connecting pipe 371. The pressure discharge holes 375 are flared outward from the inside of the connecting pipe 371. The reasonable distribution and flared design of the fluid passage hole 374 and the pressure discharge hole 375 make the hydraulic oil flow more smoothly during the process, and at the same time facilitate the rapid discharge of air in the cover 372, further enhancing the hydraulic damping effect and improving the noise reduction performance of the device.

[0035] As a further implementation of this scheme, there are a total of five air inlets and outlets 376. The air inlets and outlets 376 are evenly distributed inside the connecting pipe 371. The air inlets and outlets 376 are located in the connecting pipe 371 above the outer side of the cover cylinder 372. The air inlets and outlets 376 are inside the coverage area of ​​the protective top 373. There is a gap between the lower end of the air inlets and outlets 376 and the upper end of the cover cylinder 372. The even distribution and gap design of the air inlets and outlets 376 effectively balance the air pressure inside and outside the cover cylinder 372, prevent hydraulic oil from spraying out from the air inlets and outlets 376, avoid hydraulic oil waste, and enhance the stability and reliability of the device.

[0036] Workflow: When using this noise reduction device on a bearing processing machine tool, an appropriate amount of lubricating hydraulic oil can be injected into the inside of the fixed cylinder 31 before use, so that the level of the lubricating hydraulic oil injected into the inside of the fixed cylinder 31 reaches the highest position of the noise reduction spring 35 in its natural state. At the same time, the fixed cylinder 31 forms a U-shaped connection with the connecting pipe 371 through the connecting through hole 36, so that the lubricating hydraulic oil inside the connecting pipe 371 and the cover cylinder 372 reaches the same level as the inside of the fixed cylinder 31. Then, the support feet of the bearing processing machine tool are respectively placed in the grooves inside the moving support platform 33 of each noise reduction device. Within the elastic compression range of the noise reduction spring 35, the bearing processing machine tool distributes its own weight evenly on each noise reduction device through the support feet. At the same time, the moving support platform 33 applies an appropriate elastic compression force to the noise reduction spring 35 inside the fixed cylinder 31 through the piston sleeve 34. During the operation, the bearing processing machine tool will generate mechanical vibrations, which will be transmitted to the movable bearing platform 33 through the support legs. As the movable bearing platform 33 slides up and down in the rubber ring 32 placed inside the fixed cylinder 31, the movable bearing platform 33 drives the piston sleeve 34, which is sleeved on the outer side of its lower end, to slide up and down inside the fixed cylinder 31. The rubber ring 32 and piston sleeve 34 avoid direct contact between the movable bearing platform 33 and the fixed cylinder 31, thereby reducing the vibration noise generated by direct contact between the movable bearing platform 33 and the fixed cylinder 31. When the movable bearing platform 33 drives the piston sleeve 34 to slide up and down, the piston sleeve 34 can further exert an elastic extension force on the noise reduction spring 35 tightly attached below. Through the elastic buffering of the noise reduction spring 35 and its complete immersion in lubricating hydraulic oil, the vibration transmission fluctuation of the bearing processing machine tool is greatly reduced, thereby reducing the mechanical noise formed by the vibration wave of the machine tool.

[0037] As the movable support platform 33 drives the piston sleeve 34 to move inside the fixed cylinder 31, the piston sleeve 34 simultaneously squeezes the lubricating hydraulic oil inside the fixed cylinder 31. This causes the lubricating hydraulic oil inside the fixed cylinder 31 to slowly enter the connecting pipe 371 through the connecting through hole 36 opened inside the fixed cylinder 31. Since the connecting pipe 371 cannot hold too much lubricating hydraulic oil, most of the lubricating hydraulic oil can be discharged into the cover 372 fixedly connected to the outside of the connecting pipe 371 through the fluid passage hole 374 opened inside the connecting pipe 371. During the elastic reciprocating movement of the noise reduction spring 35, the lubricating hydraulic oil in the connecting pipe 371 and the cover 372 gradually move in sync. During the process of gradually injecting lubricating hydraulic oil inside the cover 372, the air inside the cover 372 can be discharged through the pressure relief hole 3 opened inside the connecting pipe 371. 75 slowly enters the connecting pipe 371, and eventually, together with the air inside the connecting pipe 371, it is discharged from the air inlet / outlet 376 opened inside the connecting pipe 371. The pressure relief hole 375 opened inside the connecting pipe 371 is bracket-shaped from the inside to the outside, so that when the liquid level inside the cover 372 rises rapidly, the air inside the cover 372 is compressed and slowly discharged, thereby achieving the purpose of slow rise of the liquid level inside the cover 372. This provides a certain degree of damping for the movement of the moving support platform 33 in the noise reduction device, and at the same time prevents a large amount of lubricating hydraulic oil from spraying out of the air inlet / outlet 376, causing waste. This device greatly reduces the overall vibration noise generated during the operation of the bearing processing machine tool by physical vibration reduction, and avoids the support feet of the bearing processing machine tool from directly contacting the horizontal ground, forming mechanical resonance noise.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A noise reduction device for bearing machining, comprising a noise reduction pad (1) and anti-skid particles (2), characterized in that: The noise reduction pad (1) is fixedly connected with anti-skid particles (2) on the lower side, and is provided with a damping and noise reduction mechanism (3) on the inner side. The inner side of the fixed cylinder (31) is in close contact with the rubber ring (32), the inner side of the rubber ring (32) is slidably connected with a movable bearing table (33), the outer side of the movable bearing table (33) is sleeved with a piston sleeve (34), the lower side of the piston sleeve (34) is in close contact with the upper end of the noise reduction spring (35), the inner side of the lower end side of the fixed cylinder (31) is provided with a connecting through hole (36), and the outer side of the fixed cylinder (31) is fixedly connected with a damping and damping assembly (37). The damping and damping assembly (37) includes a communication pipe (371), the outer side of the communication pipe (371) is fixedly connected with a cover cylinder (372), the upper end of the communication pipe (371) is fixedly connected with a protective top (373), the inner side of the lower end of the communication pipe (371) is provided with a liquid passage (374), the inner side of the upper end of the communication pipe (371) is provided with a pressure discharge hole (375), and the inner side of the upper end of the communication pipe (371) is provided with an air inlet and outlet hole (376).

2. The noise reduction device for bearing machining according to claim 1, characterized in that: The side section of the noise reduction pad (1) is a trapezoidal column, the inner side of the noise reduction pad (1) is provided with a slot, the communication pipe (371) is clamped in the slot provided in the inner side of the noise reduction pad (1), and the noise reduction pad (1) is evenly distributed with a plurality of anti-skid particles (2) at the end with the maximum diameter of the table surface.

3. The noise reduction device for bearing machining according to claim 1, characterized in that: The lower end of the fixed cylinder (31) is clamped in the groove provided in the noise reduction pad (1), the maximum diameter of the fixed cylinder (31) is the same as the maximum diameter of the rubber ring (32) and the movable bearing table (33), the inner diameter of the movable bearing table (33) is the same as the maximum inner diameter of the piston sleeve (34), the noise reduction spring (35) is arranged on the inner side of the fixed cylinder (31), and the lower end of the noise reduction spring (35) is in close contact with the inner bottom of the fixed cylinder (31).

4. The noise reduction device for bearing machining according to claim 1, characterized in that: The inner side of the movable bearing table (33) is provided with a groove with an opening upward, the movable bearing table (33) slides in close contact with the inner wall of the rubber ring (32), the outer side of the movable bearing table (33) is provided with an arc convex ring, the movable bearing table (33) is clamped and connected with the piston sleeve (34) through the arc convex ring arranged on the outer side, and the piston sleeve (34) slides in the fixed cylinder (31).

5. The noise reduction device for bearing machining according to claim 1, characterized in that: The side section of the communication pipe (371) is "L" type, the communication pipe (371) is in communication with the inner side of the fixed cylinder (31) through the connecting through hole (36), the communication pipe (371) and the cover cylinder (372) are on the same axis, and the liquid passage (374), the pressure discharge hole (375) and the air inlet and outlet hole (376) are all arranged on the section of the communication pipe (371) parallel to the fixed cylinder (31).

6. The noise reduction device for bearing machining according to claim 1, characterized in that: The liquid passage hole (374) and the pressure discharge hole (375) are arranged in the range of the inner side of the communication pipe (371) which is completely covered by the cover cylinder (372), the pressure discharge hole (375) is arranged on the upper side of the liquid passage hole (374), the number of the liquid passage hole (374) is four, the liquid passage hole (374) is evenly distributed in the inner side of the communication pipe (371), the number of the pressure discharge hole (375) is three, the pressure discharge hole (375) is evenly distributed in the inner side of the communication pipe (371), the pressure discharge hole (375) is flared from the inner to the outer of the communication pipe (371) in the inner side of the communication pipe (371).

7. The noise reduction device for bearing machining according to claim 1, characterized in that: The number of the air inlet and outlet hole (376) is five, the air inlet and outlet hole (376) is evenly distributed in the inner side of the communication pipe (371), the air inlet and outlet hole (376) is arranged in the communication pipe (371) on the upper side of the range of the outer side of the cover cylinder (372), the air inlet and outlet hole (376) is in the covering range of the protection top (373), there is a gap between the lower end of the air inlet and outlet hole (376) and the upper end of the cover cylinder (372).

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