Electromagnetic vibratory exciter
First Claim
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1. An electromagnetic vibratory exciter comprising:
- an exciter body including a housing supporting a plurality of electromagnet means directed toward the inside of said exciter body;
a plurality of non-linear spring means carried in said exciter body, one of each of said plurality of non-linear spring means inboard and longitudinally adjacent one of each of said plurality of electromagnet means, each non-linear spring means including a first pair of elastomeric spring means having one of each of said pair mounted diametrically opposite the other of said first pair disposed relative to the longitudinal axis of said exciter body and a second pair of elastomeric spring means having one of each of said pair mounted diametrically opposite the other of said second pair axially disposed relative to the longitudinal axis of said exciter body;
a free mass including armature means supported for longitudinal movement in said exciter body sequentially toward first one than another of said plurality of electromagnet means.
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Abstract
An electromagnetic vibrating exciter for use in vibratory equipment incorporates a free non mass housed in an elongated housing having electromagnets mounted inboard at each end of the housing. The free mass is totally enclosed and carries a pair of armatures for cooperation with the electromagnets.
An airgap is maintained during operation between the electromagnet and the armatures through the use of compression elements interposed between the electromagent housing and the armature of the free mass.
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Citations
16 Claims
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1. An electromagnetic vibratory exciter comprising:
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an exciter body including a housing supporting a plurality of electromagnet means directed toward the inside of said exciter body; a plurality of non-linear spring means carried in said exciter body, one of each of said plurality of non-linear spring means inboard and longitudinally adjacent one of each of said plurality of electromagnet means, each non-linear spring means including a first pair of elastomeric spring means having one of each of said pair mounted diametrically opposite the other of said first pair disposed relative to the longitudinal axis of said exciter body and a second pair of elastomeric spring means having one of each of said pair mounted diametrically opposite the other of said second pair axially disposed relative to the longitudinal axis of said exciter body; a free mass including armature means supported for longitudinal movement in said exciter body sequentially toward first one than another of said plurality of electromagnet means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 13, 14, 15, 16)
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9. An electromagnetic vibrating exciter having;
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a source of pulsed electrical energy, an exciter body electrically connected with said source of pulsed electrical energy, said exciter body including a housing having a pair of end caps, each end cap supporting an electromagnet inside of said exciter body, said pulsed electrical energy directed sequentially to a first and a second of said pair of electromagnets; a free mass including a first and a second armature means supported for movement in said exciter body; non-linear spring means including a first pair of elastomeric spring means having one of each of said pair mounted diametrically opposite the other of said pair relative to a longitudinal axis of said exciter body and a second pair of elastomeric spring means having one of each of said pair mounted diametrically opposite the other of said pair relative to said longitudinal axis of said exciter body; said non-linear spring means carried in said exciter body inboard and longitudinally adjacent one of each of said electromagnets on said end caps. - View Dependent Claims (10, 11, 12)
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Specification