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Rotating sealing device capable of polishing with air

A technology of rotary sealing and air grinding, which is applied in the direction of grinding devices, engine sealing, grinding machine tools, etc., can solve the problems of trachea rotation and winding, and achieve the effect of improving efficiency

Inactive Publication Date: 2013-05-15
XIAN TECHNOLOGICAL UNIV
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Problems solved by technology

[0003] The purpose of the present invention is to provide a rotary sealing device capable of grinding and polishing with air, so as to solve the problem that the trachea rotates and entangles with the air-floating pad during the grinding process of the elastic sheet air-floating pad in the prior art

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  • Rotating sealing device capable of polishing with air
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  • Rotating sealing device capable of polishing with air

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Embodiment Construction

[0015] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0016] refer to figure 1 , a rotary sealing device capable of air polishing, including a main shaft 1, and its special feature is that: the main shaft 1 is sequentially set with a fixed end assembly, an air chamber part 2, a floating end assembly, a spring 3 and The end cover 4, the air cavity part 2 is a hollow disc structure, the center of its upper and lower ends is provided with a through hole larger than the diameter of the main shaft, the side wall of the air cavity part 2 is provided with an air outlet 13, the air cavity part 2. It is sleeved on the main shaft 1 through the through holes on the upper and lower ends. The fixed end assembly includes a fixed end gas thrust bearing 5, a fixed end needle roller bearing 6 and a fixed end sleeve 7. The fixed end gas thrust bearing 5 is sleeved on the main shaft 1 and is in tight fit with the main shaft 1. The gas th...

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Abstract

The invention belongs to the technical field of an end face gas film sealing technology and particularly relates to a rotating sealing device capable of polishing with air. A problem that air tube twines as a gas floating pad rotates in the process of polishing with air of an elastic sheet gas floating pad exists in the prior art. To solve the problem, the technical scheme includes that the rotating sealing device capable of polishing with air comprises a main shaft, the main shaft is sleeved with a fixed end component, an air cavity part, a floating end component, a spring and an end cover in sequence from top to bottom, the air cavity part is in a hollow disc structure, an air outlet hole is formed in the side wall of the air cavity part, the fixed end component comprises a fixed end gas thrust bearing, a fixed end needle bearing and a fixed end sleeve, and the floating end component comprises a floating end gas thrust bearing , a floating end needle bearing and a floating end sleeve. The rotating sealing device capable of polishing with air can well solve the problem that the air tube twines as the gas floating pad rotates in the process of polishing with air of the elastic sheet gas floating pad.

Description

technical field [0001] The invention belongs to the technical field of end face gas film sealing technology, and in particular relates to a rotary sealing device capable of grinding and polishing with gas. Background technique [0002] Rigid structure air-floating pads can be directly ground and polished on a plane grinder, but for air-floating pads with pressure equalizing grooves on elastic sheets, to realize pressure equalizing grooves on elastic sheets, the air-floating pads need to be ground and polished during the grinding and polishing process. Inflate the air pressure, that is, the air-floating pad "inflated" grinding and polishing process proposed in this design. According to the principle of the existing plane grinding and polishing machine, it can be known that the grinding disc and the workpiece disc of the air-floating pad are rotating during the grinding and polishing process. If Fill the air-floating pad with gas, the inflatable air tube will be wound aroun...

Claims

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Application Information

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IPC IPC(8): B24B37/34F16J15/40
Inventor 卢志伟张君安刘波屠喜魏明明方舟赫东锋马晨
Owner XIAN TECHNOLOGICAL UNIV
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