Patent US3981171A successfully refreshed from Google Patents.
US3981171A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Twin drive for rolling mills
Assignee: Siemens AG
•
Filing: 1975-11-07
•
Granted: 1976-09-21
•
Expires: 1995-11-07
Abstract
Abstract The invention is directed to an improvement for a twin drive rolling mill wherein upper and lower rollers are connected with the rotor shafts of corresponding drive motors through respective transmission chains. An elevated bearing support platform is provided over which the upper-roller transmission chain is guided. Each transmission chain includes a coupling that permits longitudinal displacements, a spindle, and an axial pressure bearing. The upper-roller transmission chain further includes an intermediate shaft, a radial bearing mounted on the support platform for accommodating the intermediate shaft, and a support-beam structure arranged laterally of the spindle for supporting the spindle. The improvement includes a lever pivotally mounted on the elevated bearing support platform and a connection bolt for connecting the support-beam structure to the lever. The bolt is constructed to rupture upon the application of a predetermined force between the lever and the support platform to thereby prevent excessive forces from being transmitted to the latter.
Inventors
- 👤 Wolfgang Kmelisch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:48
CPC Classifications
B; B21; B21B; B21B33/00; B21B35/00; B21B35/14; B21B35/148
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
148 words
In a twin drive rolling mill having upper and lower rollers connected with the rotor shafts of corresponding drive motors through respective transmission chains, an elevated bearing support platform over which the upper-roller transmission chain is guided, each transmission chain including: a coupling that permits longitudinal displacements, a spindle, and an axial pressure bearing for the taking up forces transmitted along the transmission chain; the upper-roller transmission chain further including: an intermediate shaft, a radial bearing mounted on the support platform for accommodating the intermediate shaft, and a support-beam structure arranged laterally of the spindle for supporting the spindle, the improvement comprising: a lever pivotally mounted on the elevated bearing support platform; connection means for connecting said support-beam structure to said lever; and, rupture means connecting said lever to the support platform for rupturing upon the application of a predetermined force between said lever and the support plaform.
Claim 2
Dependent Claim
148 words
In a twin drive rolling mill having upper and lower rollers connected with the rotor shafts of corresponding drive motors through respective transmission chains, an elevated bearing support platform over which the upper-roller transmission chain is guided, each transmission chain including: a coupling that permits longitudinal displacements, a spindle, and an axial pressure bearing for the taking up forces transmitted along the transmission chain; the upper-roller transmission chain further including: an intermediate shaft, a radial bearing mounted on the support platform for accommodating the intermediate shaft, and a support-beam structure arranged laterally of the spindle for supporting the spindle, the improvement comprising: a lever pivotally mounted on the elevated bearing support platform; connection means for connecting said support-beam structure to said lever; and, rupture means connecting said lever to the support platform for rupturing upon the application of a predetermined force between said lever and the support plaform.
Claim 3
Dependent Claim
12 words
The improvement of claim 1, said connection means being a pivot connection.
Claim 4
Dependent Claim
49 words
The improvement of claim 2 wherein the improvement further comprises: a bearing support mounted on the support platform; said rupture means being a bolt having a rupture location whereat the same ruptures when said predetermined force is exceeded, said bolt being connected between said lever and said bearing support.
Claim 5
Dependent Claim
241 words
In a twin drive rolling mill mounted on a foundation and having upper and lower rollers connected with the rotor shafts of corresponding drive motors through respective transmission chains, an elevated bearing support platform over which the upper-roller transmission chain is guided, each transmission chain including: a coupling that permits longitudinal displacements, a spindle, and an axial pressure bearing for taking up forces transmitted along the transmission chain; the upper-roller transmission chain further including: an intermediate shaft, a radial bearing mounted on the support platform for accommodating the intermediate shaft, and a support-beam structure arranged laterally of the spindle for supporting the spindle; the lower-roller transmission chain further including a support-beam structure arranged laterally of the spindle of the lower-roller transmission chain for supporting the same, the rolling mill further including a bearing support arranged on the foundation, the improvement comprising: a lever pivotally mounted on the elevated bearing support platform; connection means for connecting said support-beam structure to said lever; rupture means connecting said lever to the support platform for rupturing upon the application of a predetermined force between said lever and the support platform; a second lever pivotally mounted on said bearing support, second connection means for connecting the support-beam structure of the lower-roller transmission chain to said second lever; and, second rupture means connecting said second lever to the bearing support for rupturing upon the application of a predetermined force between said second lever and the bearing support.
Claim 6
Dependent Claim
241 words
In a twin drive rolling mill mounted on a foundation and having upper and lower rollers connected with the rotor shafts of corresponding drive motors through respective transmission chains, an elevated bearing support platform over which the upper-roller transmission chain is guided, each transmission chain including: a coupling that permits longitudinal displacements, a spindle, and an axial pressure bearing for taking up forces transmitted along the transmission chain; the upper-roller transmission chain further including: an intermediate shaft, a radial bearing mounted on the support platform for accommodating the intermediate shaft, and a support-beam structure arranged laterally of the spindle for supporting the spindle; the lower-roller transmission chain further including a support-beam structure arranged laterally of the spindle of the lower-roller transmission chain for supporting the same, the rolling mill further including a bearing support arranged on the foundation, the improvement comprising: a lever pivotally mounted on the elevated bearing support platform; connection means for connecting said support-beam structure to said lever; rupture means connecting said lever to the support platform for rupturing upon the application of a predetermined force between said lever and the support platform; a second lever pivotally mounted on said bearing support, second connection means for connecting the support-beam structure of the lower-roller transmission chain to said second lever; and, second rupture means connecting said second lever to the bearing support for rupturing upon the application of a predetermined force between said second lever and the bearing support.
Claim 7
Dependent Claim
23 words
The improvement of claim 4, said first-mentioned connection means being a pivot connection; and said second connection means likewise being a pivot connection.
References Cited (Backward Citations)
US150516A
Cited
US3831410A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-09-21 | 1980-03-22 | 1980-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-21 | 1984-03-22 | 1984-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-21 | 1988-03-22 | 1988-09-21 | $7700.00 | Window Closed / Lapsed |