Patent US3796092A successfully refreshed from Google Patents.
US3796092A
Expired / Lapsed
US
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Torsion test stand
Assignee: Carl Schenck AG
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Filing: 1971-11-26
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Granted: 1974-03-12
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Expires: 1991-11-26
Abstract
Abstract Torsion test stand for testing power-transmitting structural members such as axles, shafts or similar members, includes a test section including at least two spaced reversing transmissions, each having a pair of meshing gears, means for disposing a plurality of the structural members therebetween, at least one of the structural members being a test specimen to be tested, drive means for applying rotary motion to the reversing transmission and, accordingly to the structural members disposed therebetween, and torque transmission couplings corresponding in number to the number of the reversing transmissions for superimposing a torque on the rotary motion and stressing the test specimen against a gear of one of the reversing transmissions with a total torque by a torsion angle that is a function of the ratio of the elasticity of the test specimen of the test section to the elasticity of all of the plurality of structural members of the test section.
Inventors
- 👤 F Klinger
- 👤 J Brezina
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:56
CPC Classifications
G; G01; G01M; G01M13/00; G01M13/02; G01M13/025; G01M13/026
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
116 words
Torsion test stand for testing power-transmitting structural members such as axles, shafts or similar members, comprising a test section including at least two spaced reversing transmissions, each having a pair of meshing gears, means for disposing a plurality of the structural members therebetween, at least one of the structural members being a test specimen to be tested, drive means for applying rotary motion to said reversing transmissions and, accordingly, to the structural members disposed therebetween, and torque transmission couplings corresponding in number to the number of said reversing transmission and respectively connected thereto for superimposing a torque on the rotary motion and dynamically loading the test specimen against one of said gears of said reversing transmissions.
Claim 2
Dependent Claim
116 words
Torsion test stand for testing power-transmitting structural members such as axles, shafts or similar members, comprising a test section including at least two spaced reversing transmissions, each having a pair of meshing gears, means for disposing a plurality of the structural members therebetween, at least one of the structural members being a test specimen to be tested, drive means for applying rotary motion to said reversing transmissions and, accordingly, to the structural members disposed therebetween, and torque transmission couplings corresponding in number to the number of said reversing transmission and respectively connected thereto for superimposing a torque on the rotary motion and dynamically loading the test specimen against one of said gears of said reversing transmissions.
Claim 3
Dependent Claim
37 words
Torsion test stand according to claim 1, wherein each of said torque transmission couplings includes a housing, and one of the gears of a respective reversing transmission is rigidly connected to a respective housing for rotation therewith.
Claim 4
Dependent Claim
37 words
Torsion test stand according to claim 1, wherein each of said torQue transmission couplings includes a housing, and the gears of a given reversing transmission are rigidly connected, respectively, to each of said housings for rotation therewith.
Claim 5
Dependent Claim
23 words
Torsion test stand according to claim 1, wherein said drive means comprise a respective drive motor coordinated with each of said reversing transmissions.
Claim 6
Dependent Claim
29 words
Torsion test stand according to claim 4, including a control circuit respectively coordinated with each of said drive motors for maintaining the rotary speed thereof at a constant value.
Claim 7
Dependent Claim
20 words
Torsion test stand according to claim 5, wherein said control circuits have dimensions for damping torsional oscillations of the gears.
Claim 8
Dependent Claim
15 words
Torsion test stand according to claim 4, wherein said drive motors have torsional oscillation-damping properties.
Claim 9
Dependent Claim
20 words
Torsion test stand according to claim 1, including means for damping torsional oscillations coordinated with each of said reversing transmissions.
Claim 10
Dependent Claim
20 words
Torsion test stand according to claim 1, including a measuring device in said test section for measuring the applied torque.
Claim 11
Dependent Claim
59 words
Torsion test stand according to claim 1, wherein said test section is adapted to receive at least two test specimens to be tested simultaneously, and is respectively provided with joints, respectively connected to said reversing transmissions and connectible to the test specimens and guide sections disposed between said reversing transmissions and adapted to receive the test specimens, respectively, therein.
Claim 12
Dependent Claim
25 words
Torsion test stand according to claim 1, including loading devices connected to said torque transmission coupling for applying additional test stresses to the test specimen.
References Cited (Backward Citations)
US2981103A
Cited
US3112643A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-11 | 1977-09-10 | 1978-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-11 | 1981-09-10 | 1982-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-11 | 1985-09-10 | 1986-03-12 | $7700.00 | Window Closed / Lapsed |