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Engine body

A body and cavity technology, applied in the field of the body, can solve the problems of noise reduction, vibration absorption effect, noise reduction, vibration absorption effect, stress concentration, etc., to prolong the fatigue life of the body, fatigue life of the vibration absorption body, heat expansion and contraction deformation small effect

Active Publication Date: 2010-12-08
浙江博雷重型机床制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the above-mentioned methods all have certain limitations: increasing the materials used for the chassis of the body will undoubtedly increase consumables and increase costs; the use of counterweights for noise reduction and vibration absorption is poor; Air mixed in the sand is easy to expand with heat and contract with cold, which will cause the cavity to deform. If the sand is not filled enough, it will affect the sound attenuation and vibration absorption effect; if the cavity of the body is filled with soft materials such as sponge and fiber, it will not be close to the inner wall of the cavity. , its noise reduction and vibration absorption effects are greatly affected
Especially for the welded machine body, the physical properties and matching precision of the machine body are high. Generally, it is formed by plate welding, and there are stress concentration problems in the welding joints and other positions. damage

Method used

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Experimental program
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Effect test

Embodiment 1

[0017] Such as figure 1 The shown body includes a body 1, and the body 1 is provided with two closed cavities 11, 12, and the cavities 11, 12 are filled with elastic gel-like counterweight fillers, and the body is a welded body , The cavities 11, 12 are welded metal plates to form cavities. The weight filler is a uniform mixture of barite powder and viscous solution. In this embodiment, the viscous solution is commercially available water glass glue, containing 30% to 40% by mass of sodium silicate, and the fineness of the barite powder is a commercially available product above 200 mesh, containing sulfuric acid The mass percentage of barium is more than 95%, the mass ratio of water glass glue and barite powder is 4:1, after mixing evenly, pour it into the cavity of the welding machine body and seal it. After half a year of trial and use at a relatively high ambient temperature of 50°C to 60°C, the machine has good noise reduction and vibration absorption effects and has goo...

Embodiment 2

[0019] A machine body includes a body. The body is provided with two closed cavities filled with elastic gel-like counterweight fillers. The body is a welded body, and the cavities are made by welding metal plates. The weight filler is a uniform mixture of barite powder and viscous solution. In the present embodiment, the viscous solution is unsaturated polyester resin (vinyl), the fineness of the barite powder is a commercially available product above 325 mesh, and the barium sulfate mass percentage is more than 95%. The mass ratio of polyester resin and barite powder is 3:1, and after being mixed evenly, it is poured into the cavity of the welding machine body and sealed. After half a year of trial and use at a relatively high ambient temperature of 50°C to 60°C, the machine has good noise reduction and vibration absorption effects and has good stability.

Embodiment 3

[0021] A body, including a body, the body is provided with two semi-closed cavities (that is, vents are left), the cavities are filled with elastic gel-like counterweight fillers, the body is a welded body, and the cavity is Metal sheets are welded to form the cavity. The weight filler is a uniform mixture of barite powder and viscous solution. In the present embodiment, the viscous solution is unsaturated polyester resin (vinyl), the fineness of the barite powder is a commercially available product above 300 mesh, and the barium sulfate mass percentage is more than 95%. The mass ratio of polyester resin and barite powder is 5:1, and after mixing evenly, pour it into the cavity of the welding machine body and seal it. After half a year of trial and use at a relatively high ambient temperature of 50°C to 60°C, the machine has good noise reduction and vibration absorption effects and has good stability.

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Abstract

The invention discloses an engine body, comprising a body, wherein the body is provided with at least one cavity; counter weight stuffing in the form of elastic gum is filled in the cavity and is even mixture of barite powder and viscous solution. In the technical scheme, the counter weight stuffing is in the form of elastic gum, is clung to the inner cavity of the engine body, is not easy to be influenced by environment and other substances, and has the advantages of no corrosion, permanent gum form, stable owned substances, little thermal expansion and cool contraction deformation and the like; in addition, the colloid is flexibly clung to the cavity, can better receive external vibrating wave and fading harmonic wave compared with foam, fiber and the like, so as not to generate resonance phenomenon, but to realize sound attenuation and vibration adsorption and prolong fatigue life of the engine body; and the stress elimination of a welded junction and sheet metal stress concentration area has long-acting durability especially for welded engine bodies. Moreover, materials are saved, and transportation is convenient.

Description

technical field [0001] The invention relates to the field of machine tool equipment, in particular to a machine body used for machine tools, equipment and the like. Background technique [0002] In the prior art, in order to ensure stable operation of machine tools and other large machinery, reduce the vibration of the machine and the damage of parts caused by it, and reduce the noise of the machine, two methods are generally adopted: one is to increase the weight of the machine body and lower the center of gravity of the machine, In order to improve the stability of the machine operation, reduce or avoid the vibration of the machine body, so as to achieve the effect of noise reduction and vibration absorption, it is generally to increase the material used for the chassis of the machine body, or to increase the counterweight of the chassis, or to set the cavity on the machine body to fill sand; the other It is to install cushion pads at the position where the body is in cont...

Claims

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Application Information

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IPC IPC(8): B23Q1/01
Inventor 高尔荣吴敏
Owner 浙江博雷重型机床制造有限公司
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