US3784117A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotor for use in impact crushers
Assignee: Salzgitter Maschinenbau GmbH
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Filing: 1972-09-29
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Granted: 1974-01-08
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Expires: 1992-09-29
Abstract
Abstract A rotor body is composed of a plurality of axially spaced parallel plates which are rigidly connected for rotation about a joint axis. The outer periphery of the rotor body is provided with slots extending inwardly of the periphery and in parallelism with the axis, and impact bars are arranged in the respective slots. Between the bars and one sidewall of each slot is mounted a support bar which interengages with the impact bar, the latter extending to some extent outwardly beyond the periphery of the rotor body. Between the other sidewall of the slot and the impact bar is arranged a wedge member which is urged to wedging position by a plurality of pressure-fluid operated elements arranged in the slots and being connected via branch conduits with main pressure fluid conduits arranged in the rotor body.
Inventors
- 👤 R Koenig
- 👤 G Hemesath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:13
CPC Classifications
B; B02; B02C; B02C13/00; B02C13/26; B02C13/28; B02C13/2804
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
157 words
In a rotor for use in impact crushers, a combination comprising rotor body means mounted for rotation about an axis and having an outer periphery; a plurality of slots extending inwardly of said periphery and having a longitudinal orientation in parallelism with said axis; a plurality of impact bars each accommodated in one of said slots and in part projecting outwardly beyond said periphery; a plurality of sets of wedge members, each set comprising a plurality of wedge members received in a respective slot spaced along the associated impact bar and wedgingly engaged the latter for maintaining it against displacement relative to the slot; a plurality of sets of fluidoperated pressure elements, the pressure elements of each set acting upon respective wedge members of an associated set of wedge members and urging them to wedging position; and a plurality of pressure-fluid conduits each associated with one of said sets of pressure elements for supplying pressure fluid thereto.
Claim 2
Dependent Claim
157 words
In a rotor for use in impact crushers, a combination comprising rotor body means mounted for rotation about an axis and having an outer periphery; a plurality of slots extending inwardly of said periphery and having a longitudinal orientation in parallelism with said axis; a plurality of impact bars each accommodated in one of said slots and in part projecting outwardly beyond said periphery; a plurality of sets of wedge members, each set comprising a plurality of wedge members received in a respective slot spaced along the associated impact bar and wedgingly engaged the latter for maintaining it against displacement relative to the slot; a plurality of sets of fluidoperated pressure elements, the pressure elements of each set acting upon respective wedge members of an associated set of wedge members and urging them to wedging position; and a plurality of pressure-fluid conduits each associated with one of said sets of pressure elements for supplying pressure fluid thereto.
Claim 3
Dependent Claim
15 words
A combination as defined in claim 1, wherein said pressure elements are hydraulic pressure elements.
Claim 4
Dependent Claim
86 words
A combination as defined in claim 1, further comprising a plurality of support bars each fast with said rotor body means and accommodated in one of said slots intermediate the respective impact bar and one sidewall of the slot; interengaging retaining portions on the respectively associated impact and support bars; and wherein said wedge members are accommodated intermediate the respective impact bar and an opposite sidewall of the slot. 4 A combination as defined in claim 3, wherein said wedge members are of the non-self-locking type.
Claim 5
Dependent Claim
30 words
A combination as defined in claim 3, said wedge pressure elements being so oriented that the direction of the pressure exerted by them bisects the angle of said wedge members.
Claim 6
Dependent Claim
43 words
A combination as defined in claim 3, said rotor body means having opposite axial endfaces, and wherein said pressure-fluid conduits extend to one of said endfaces and are provided with couplings with automatic closing valves for connection to a source of pressure fluid.
Claim 7
Dependent Claim
77 words
A combination as defined in claim 3, said rotor body means comprising a plurality of axially spaced at least substantially parallel rotor plates, and connector means rigidly connecting said plates together, said slots each being composed of a plurality of cutouts provided in the respective plates and extending from one to the other axial endface of each plate; and wherein said pressure elements are each arranged in one of said cutouts inwardly of the respective axial endfaces.
Claim 8
Dependent Claim
45 words
A combination as defined in claim 7, said conduits each including a main conduit portion extending in parallelism with said axis, and a plurality of branch conduit portions branching off said main conduit portion and extending within the respective plate to an associated pressure element.
Claim 9
Dependent Claim
28 words
A combination as defined in claim 8, said connector means comprising at least one tubular connecting member, and said main conduit portion being arranged within said connecting member.
Claim 10
Dependent Claim
43 words
A combination as defined in claim 7, said pressure elements each including a cylinder and a piston; and wherein said pressure elements are so mounted within holes of said plates that said cylinders are enclosed and only said pistons project from said holes.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |