1. A planetary gear mechanism for converting a slow rotational movement of a drive shaft into a rapid rotational movement of an output shaft, the planetary gear mechanism comprising:
a planetary gear carrier;
a planetary gear; and
a bearing arrangement arranged on the planetary gear carrier and configured to rotatably mount the planetary gear, the bearing arrangement including:
at least two tapered roller bearings arranged spaced apart axially from one another between the planetary gear and the planetary gear carrier, each of the at least two tapered roller bearings having an inner ring and an outer ring;
a first intermediate ring configured to axially position the at least two tapered roller bearings on the planetary gear carrier, the first intermediate ring arranged on an outer circumferential face of the planetary gear carrier between the two inner rings;
a collar formed on an inner circumferential face of the planetary gear between the two outer rings radially along an inner circumference of the planetary gear, the collar configured to axially secure the planetary gear; and
at least one second intermediate ring configured to axially position the at least two tapered roller bearings with respect to one another, the at least one second intermediate ring arranged on the inner circumferential face of the planetary gear, the at least one second intermediate ring having:
an outer circumferential face; and
a cutout formed on the outer circumferential face and directed to the collar, the cutout configured to correspond at least to an axial length of the collar.
2. The planetary gear mechanism according to claim 1, wherein the collar is configured to come into contact with an axially inwardly directed end face of one of the outer rings.
3. The planetary gear mechanism according to claim 1, wherein:
the collar has two axial end faces,
the collar is formed substantially centrally between the two outer rings,
the at least one second intermediate ring includes two second intermediate rings, and
one of the two second intermediate rings is arranged on each of the two axial end faces of the collar.
4. The planetary gear mechanism according to claim 3, wherein the two second intermediate rings are configured to come into contact on axial end faces.
5. The planetary gear mechanism according to claim 1, wherein the at least two tapered roller bearings have an O-arrangement of antifriction bearing elements.
6. The planetary gear mechanism according to claim 1, wherein the at least one second intermediate ring and the planetary gear have wear-reducing surfaces.
7. The planetary gear mechanism according to claim 1, further comprising a clearance fit provided between the at least one second intermediate ring and the planetary gear.
8. The planetary gear mechanism according to claim 1, wherein:
the collar has axial end faces,
the at least one second intermediate ring has axial end faces, and
the axial end faces of the collar and the axial end faces of the at least one second intermediate ring are hard-turned andor surface-ground.
9. The planetary gear mechanism according to claim 1, wherein at least two planetary gears of the planetary gear mechanism have a spur toothing system or a helical toothing system.
10. A wind power plant, comprising:
a rotor;
an electric generator; and
a planetary gear mechanism configured to convert a slow rotational movement of the rotor into a rapid rotational movement to operate the electric generator, the planetary gear mechanism including:
a drive shaft connected to the rotor;
an output shaft connected to the electric generator;
a planetary gear carrier;
a planetary gear; and
a bearing arrangement arranged on the planetary gear carrier and configured to rotatably mount the planetary gear, the bearing arrangement including:
at least two tapered roller bearings arranged spaced apart axially from one another between the planetary gear and the planetary gear carrier, each of the at least two tapered roller bearings having an inner ring and an outer ring;
a first intermediate ring configured to axially position the at least two tapered roller bearings on the planetary gear carrier, the first intermediate ring arranged on an outer circumferential face of the planetary gear carrier between the two inner rings;
a collar formed on an inner circumferential face of the planetary gear between the two outer rings radially along an inner circumference of the planetary gear, the collar configured to axially secure the planetary gear; and
at least one second intermediate ring configured to axially position the at least two tapered roller bearings with respect to one another, the at least one second intermediate ring arranged on the inner circumferential face of the planetary gear, the at least one second intermediate ring having:
an outer circumferential face; and
a cutout formed on the outer circumferential face and directed to the collar, the cutout configured to correspond at least to an axial length of the collar.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A system for processing trades of securitized instruments based on security orders and quotes received from client computers, comprising:
at least one server computer comprising a memory, and a processor, said server computer configured to perform the steps of:
receiving orders and quotes, wherein specified ones of said quotes belong to a quote group, and wherein said specified ones of said quotes have associated trading parameters comprising a predefined number of bought or sold contracts relating to said quote group;
generating a trade by matching said received orders and quotes to previously received orders and quotes;
storing each of said orders and quotes when a trade is not generated;
determining whether a quote having associated trading parameters has been filled as a result of the generated trade, and if so, determining a number of contracts that have been bought or sold within said quote group, including the generated trade;
comparing said number of contracts that have been bought or sold within said quote group with said predefined number of bought or sold contracts relating to said quote group; and,
automatically modifying at least one of the remaining specified ones of said quotes in the quote group if said predefined number of bought or sold contracts is exceeded.
2. The apparatus of claim 1, wherein the number of contracts that have been bought or sold comprises a total number of put contracts bought or sold.
3. The apparatus of claim 1, wherein the number of contracts that have been bought or sold comprises a total number of call contracts bought or sold.