Mechanical seal used for ash lifting machine
A technology of mechanical seals and hoists, applied in the direction of engine seals, mechanical equipment, engine components, etc., can solve problems such as short service life, leakage, and gap generation, and achieve the effect of avoiding wear
Inactive Publication Date: 2016-12-07
宁波天工机械密封有限公司
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- Description
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- Application Information
AI Technical Summary
Problems solved by technology
[0002] At present, the seal of the guide wheel shaft of the ash hoist in a power plant is generally sealed with a packing seal, and the packing seal is easy to wear when the medium is ash and cinder water, which will cause gaps and leaks, requiring constant maintenance and tightening, and Not reaching the desired service life
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[0011] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
[0012] As shown in the figure, the mechanical seal for the ash hoist of the present invention includes: a shaft sleeve 1, which is sealed and fastened on the rotating shaft 2. In this embodiment, the shaft sleeve 1 passes through the fastening ring at the end 15 is fastened on rotating shaft 2 (being the guide wheel shaft of ash hoist);
[0013] The end face forms a moving ring 3 and a static ring 4 that are in relative rotation and seal fit, wherein the moving ring 3 is sealed and installed in the shaft sleeve 1 and rotates with the shaft sleeve 1. In order to realize the sealing installation of the moving ring 3, the end of the shaft sleeve 1 There is a radial protruding ring, and the end of the radial protruding ring close to the center of the shaft sleeve is provided with an inner concave ring groove to install the moving ring 3, and there i...
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The invention discloses a mechanical seal used for an ash lifting machine. The mechanical seal comprises a shaft sleeve firmly fixed to a rotating shaft, a movable ring, a static ring, a spring seat, an oil seal pressing plate, a sealing seat and a positioning sleeve. The end face of the movable ring and the end face of the static ring are in relative rotation sealing fit. The movable ring is arranged in the shaft sleeve to rotate along with the shaft sleeve. The spring seat is internally provided with the static ring and a spring. The spring seat is used for ejecting and pushing the spring to enable the spring to abut against the movable ring and the spring seat. The oil seal pressing plate is internally provided with an oil seal and is used for tightly pressing the oil seal to the end portion of the spring seat. The sealing seat is used for fixedly connecting the spring seat with the oil seal pressing plate. The positioning sleeve is firmly arranged on the shaft sleeve in a sleeving manner, and the end portion of the positioning sleeve is in rotation fit relative to the end portion of the oil seal pressing plate under the drive of the rotating of the shaft sleeve. The movable ring, the static ring, the spring seat and the sealing seat are arranged on the shaft sleeve in a clearance sleeving manner, and the oil seal is arranged on the shaft sleeve in a sealed sleeving manner. According to the mechanical seal used for the ash lifting machine, the needed service life can be effectively ensured.
Description
technical field [0001] The invention relates to the technical field of sealing a shaft of a cinder hoist guide wheel, in particular to a mechanical seal for a cinder hoist. Background technique [0002] At present, the seal of the guide wheel shaft of the ash hoist in the power plant is generally sealed with a packing seal, and the packing seal is easy to wear when the medium is ash and cinder water, and gaps and leakages will occur, requiring constant maintenance and tightening, and The desired service life is not achieved. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a mechanical seal for the ash hoist that can effectively guarantee the required service life. [0004] The technical solution of the present invention is to provide a mechanical seal for ash hoist, including: a shaft sleeve, which is fastened on the rotating shaft; the end face forms a moving ring and a static ring that are relatively rotating ...
Claims
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IPC IPC(8): F16J15/34
CPCF16J15/34
Inventor 蒋敏申屠柏卿
Owner 宁波天工机械密封有限公司