US4052898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crank drive system for cold pilger mills drive or the like
Assignee: Wean Inc
•
Filing: 1976-09-13
•
Granted: 1977-10-11
•
Expires: 1996-09-13
Abstract
Abstract The disclosure of the present invention relates to a torque and mass compensating counterweight system employed with the drive of a cold pilger rolling mill. The counterweight is connected directly to the crank by a sliding block, displaceable in a slot provided in the counterweight, in which the counterweight is arranged to reciprocate 90° out of phase with the crank and is arranged in guides to move in a plane parallel to the direction of movement of the mill.
Inventors
- 👤 Charles Leroy Miller
- 👤 Harry Calhoon Ledebur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:54
CPC Classifications
F; F16; F16H; F16H21/00; F16H21/10; F16H21/16; F16H21/18; F16H21/38; B; B21; B21B; B21B21/00; B21B21/005; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18208; Y10T74/21; Y10T74/2142; Y10T74/2154; Y10T74/2156
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
166 words
In combination with a reciprocating mass such as a cold pilger rolling mill having a pass line, a drive means, crank means connected to said drive means, means for connecting said crank means to said reciprocating mass, a counterweight means arranged in a plane parallel to the direction of movement of said reciprocating mass, and substantially coincident to said pass line with due allowance for passage of the product, means for connecting said counterweight means to said crank means in a manner to impart an oscillatory movement to said counterweight means, said oscillatory movement being in a perpendicular direction relative to said direction of movement of said mass and which oscillatory movement has a cycle substantially equal to that of the reciprocating movement of said mass and which is out of phase with said reciprocating movement of said mass, whereby the acceleration and deceleration of said counterweight means compensate respectively the acceleration and deceleration torques of said reciprocating mass during the reciprocating movement of the mass.
Claim 2
Dependent Claim
166 words
In combination with a reciprocating mass such as a cold pilger rolling mill having a pass line, a drive means, crank means connected to said drive means, means for connecting said crank means to said reciprocating mass, a counterweight means arranged in a plane parallel to the direction of movement of said reciprocating mass, and substantially coincident to said pass line with due allowance for passage of the product, means for connecting said counterweight means to said crank means in a manner to impart an oscillatory movement to said counterweight means, said oscillatory movement being in a perpendicular direction relative to said direction of movement of said mass and which oscillatory movement has a cycle substantially equal to that of the reciprocating movement of said mass and which is out of phase with said reciprocating movement of said mass, whereby the acceleration and deceleration of said counterweight means compensate respectively the acceleration and deceleration torques of said reciprocating mass during the reciprocating movement of the mass.
Claim 3
Dependent Claim
32 words
In combination with a reciprocating mass according to claim 1, including means for arranging said crank means perpendicularly in a generally horizontal plane defining the path of movement of said reciprocating mass.
Claim 4
Dependent Claim
25 words
In combination with a reciprocating mass according to claim 1 wherein said drive means includes a gear connected to one end of said crank means.
Claim 5
Dependent Claim
55 words
In combination with a reciprocating mass according to claim 1, means for rotatably supporting said crank means in a direction perpendicular to a plane coincident to the path of movement of said reciprocating mass, and means for maintaining said counterweight means in said perpendicular position in a plane containing the axis of said crank means.
Claim 6
Dependent Claim
54 words
In combination with a reciprocating mass according to claim 1, including a balancing counterweight means connected to said crank means in a manner to balance at least a portion of the inertia of the throw portion of the said crank means, said mass, and said means for connecting said crank means to said mass.
Claim 7
Dependent Claim
21 words
In combination with a reciprocating mass according to claim 1, wherein said counterweight means is connected directly to said crank means.
Claim 8
Dependent Claim
19 words
In combination with a reciprocating mass according to claim 1, wherein said connecting means comprises a single connecting rod.
Claim 9
Dependent Claim
44 words
In combination with a reciprocating mass according to claim 1, wherein said counterweight means is provided with a slot, a sliding block received in said slot, said means for connecting said counterweight means to said crank means comprising a pin connected to said block.
Claim 10
Dependent Claim
23 words
In combination with a reciprocating mass according to claim 8, guiding means provided for guiding said counterweight means during its oscillatory cyclic movement.
Claim 11
Dependent Claim
236 words
In combination with a reciprocating mass such as a cold pilger rolling mill having a pass line, a drive means for said mill, a crank means connected to said drive means, means for connecting said crank means to said mill to effect said reciprocation thereof, a first counterweight means arranged in a plane parallel to the direction of movement of said reciprocating mill, means for connecting said first counterweight means to said crank means in a manner to impart an oscillatory movement to said counterweight means, said oscillatory movement being in a perpendicular direction relative to said direction of movement of said mill, and which oscillatory movement has a cycle substantially equal to that of the reciprocating movement of said mill and which is out of phase with said reciprocating movement of said mill, whereby the acceleration and deceleration torques of said counterweight means compensate, respectively, the acceleration and deceleration torques of said reciprocating movement of said mill, and a second counterweight means connected to said crank means in a manner to balance at least a portion of the inertia of the throw of said crank means, said mill, and said means for connecting said crank means to said mill, said two counterweight means and said means for connecting said first counterweight means to said crank means being arranged in a plane substantially coincident to said pass line with due allowance for passage of the product.
Claim 12
Dependent Claim
236 words
In combination with a reciprocating mass such as a cold pilger rolling mill having a pass line, a drive means for said mill, a crank means connected to said drive means, means for connecting said crank means to said mill to effect said reciprocation thereof, a first counterweight means arranged in a plane parallel to the direction of movement of said reciprocating mill, means for connecting said first counterweight means to said crank means in a manner to impart an oscillatory movement to said counterweight means, said oscillatory movement being in a perpendicular direction relative to said direction of movement of said mill, and which oscillatory movement has a cycle substantially equal to that of the reciprocating movement of said mill and which is out of phase with said reciprocating movement of said mill, whereby the acceleration and deceleration torques of said counterweight means compensate, respectively, the acceleration and deceleration torques of said reciprocating movement of said mill, and a second counterweight means connected to said crank means in a manner to balance at least a portion of the inertia of the throw of said crank means, said mill, and said means for connecting said crank means to said mill, said two counterweight means and said means for connecting said first counterweight means to said crank means being arranged in a plane substantially coincident to said pass line with due allowance for passage of the product.
References Cited (Backward Citations)
US3584489A
Cited
US3890821A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-10-10 | 1981-04-11 | 1981-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-10 | 1985-04-11 | 1985-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-10 | 1989-04-11 | 1989-10-11 | $7700.00 | Window Closed / Lapsed |