[특허]Mixer impeller shaft attachment apparatus

Mixer impeller shaft attachment apparatus 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B01F-007/22 F16B-003/00
출원번호	US-0559107 (1990-07-27)
발명자 / 주소	Borraccia Dominic (Spencerport NY) Gambrill Jeffrey S. (Hilton NY) Webster Walter C. (Brockport NY) Everdyke Jonathan C. (Canandaigua NY)
출원인 / 주소	General Signal Corporation (Stamford CT 02)
인용정보	피인용 횟수 : 31 인용 특허 : 0

초록 ▼

A mixer impeller, which is adapted to mix and blend liquids and liquid suspensions in industrial and commmercial applications and is subject to forces which tend to work the impeller loose from attachment with its driving shaft, is secured to the shaft by collars (locking rings) which are threaded on the ends of hubs from which the blades of the impeller extend. In order to secure the attachment of the collars to the hub, a locking key is inserted between the collar and the shaft. The inner periphery of the collars are tapered outwardly away from the shaft. The neck of the locking key has portions which are deflected against these tapered inner peripheries when a pin is inserted through the neck of the locking key. A ramp on the collar mates with a ramp on the key to prevent reverse rotation (working loose) of the collar. The impeller is restrained against axial movement by the collar and against rotational movement by being keyed to the shaft and restricted by the ramp on the collar. Removal of the key for impeller replacement and maintenance is readily accomplished using the ramps on the surfaces of the collars and shoulder of the key which bear against each other. Upon removal of the locking pin, the inside of the neck deflects inwardly and the key is urged out of the collar, when the collar is unscrewed from the hub.

대표청구항 ▼

Apparatus for mounting on the shaft having an axis of rotation, an impeller having a hub, said shaft having a mounting area, said area having a keyway which extends axially of said shaft and a turnable collar having an inner periphery and being removably attachable to said hub around said shaft, said apparatus comprising a tapered portion on the inner periphery of said collar which tapers outwardly from said shaft when said collar is attached to said shaft, a key having a shoulder and a neck with inner and outer sides, said outer side being deflectable away from said inner side, said key being disposed in locking position between said mounting area and the inner periphery of said collar with said shoulder bearing upon said collar and with said inner side of said keyway when said collar is attached to said hub, a pin having a surface defining its width, said pin being movable into said key into locking position in said neck between said inner and outer sides, said inner and outer sides each having a portion, said portions of said inner and outer sides facing each other, said portions of said inner and outer sides also being normally spaced from each other by a distance less than the width of said pin, said outer side being engaged by said surface of said pin and being deflected against said inner periphery of said collar and said tapered portion thereof when said pin is in locking position, said collar having a surface against which said shoulder of said key bears, said surface of said collar defining a ramp extending circumferentially along said surface of said collar, said shoulder of said key having a surface which bears upon said ramp when said key is in the locking position, said ramp of said collar and said surface of said shoulder having complementary inclinations which are disposed in mating relationship when said key is in said locking position, and said ramp on said collar applying force against said shoulder of said key to move said key out of said locking position when said collar is turned to release said collar from said shaft.

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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Mixer impeller shaft attachment apparatus 원문보기

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