Pedestal bearing and production plant with such a pedestal bearing
A pedestal bearing that has a pedestal bearing housing with a bearing seat, a cooling duct system with at least one cooling duct, and an anti-friction bearing arranged in the bearing seat and has an anti-friction bearing outer ring. The bearing seat has a first inner circumferential side. The pedestal bearing housing has a first contact surface and is configured to transmit a bearing force (F) from the anti-friction bearing outer ring to the first contact surface. The cooling duct extends circumferentially and is configured to conduct a coolant, which can be fed into the cooling duct in order to cool the anti-friction bearing and/or the pedestal bearing housing. The first inner circumferential side of the bearing seat of the pedestal bearing housing delimits the cooling duct radially on the outside and the anti-friction bearing outer ring delimits the cooling duct radially on the inside.
1 . A pedestal bearing for bearing a running body in a production plant for producing a hot-rolled material, having
a pedestal bearing housing having a bearing receptacle,
a cooling duct system with at least one cooling duct that includes a groove channel,
a rolling bearing which is disposed in the bearing receptacle and has a rolling bearing outer race,
the groove channel being on a first inner circumferential side of the bearing receptacle encircling the rotation axis, and
a web surrounded by the groove channel,
wherein the pedestal bearing housing has a first contact face,
wherein the pedestal bearing housing is designed to transfer a bearing force (F) from the rolling bearing outer race to the first contact face,
wherein the cooling duct extends in the circumferential direction about the rotation axis and is designed to guide a coolant which is able to be fed into the cooling duct for cooling the rolling bearing and/or the pedestal bearing housing,
wherein the first inner circumferential side of the bearing receptacle of the pedestal bearing housing delimits the cooling duct radially outside, and the rolling bearing outer race delimits the cooling duct radially inside,
wherein the groove channel has a first groove channel portion and a second groove channel portion fluidically connected to the first groove channel portion,
wherein the first groove channel portion extends in the circumferential direction about the rotation axis,
wherein the second groove channel portion extends in the circumferential direction about the rotation axis so as to be axially offset from the first groove channel portion by the web,
wherein the groove channel has a third groove channel portion,
wherein the groove channel has a fourth groove channel portion,
wherein the third groove channel portion connects a circumferential end of the first groove channel portion to a circumferential end of the second groove channel portion,
wherein the fourth groove channel portion connects another circumferential end of the first groove channel portion that is opposite to the circumferential end thereof to another circumferential end of the second groove channel portion that is opposite to the circumferential end thereof.
2 . The pedestal bearing as claimed in claim 1 ,
wherein the groove channel extends at least in portions and is designed to be groove-shaped in the circumferential direction,
wherein the groove channel is designed to be radially outwardly open, and radially inwardly delimits the cooling duct.
3 . The pedestal bearing as claimed in claim 2 , wherein the groove channel is at least in portions designed to be annular between a first end side of the rolling bearing outer race and a second end side of the rolling bearing outer race that is opposite in the axial direction.
4 . The pedestal bearing as claimed in claim 2 ,
wherein the web rests against the first inner circumferential side of the bearing receptacle.
5 . The pedestal bearing as claimed in claim 4 ,
wherein the first groove channel portion extends in the circumferential direction parallel to the second groove channel portion.
6 . The pedestal bearing as claimed in claim 2 ,
wherein the rolling bearing outer race has an intermediate ring and a bearing ring,
wherein the intermediate ring is formed so as to be hollow-cylindrical about the rotation axis and radially inside has a fifth inner circumferential side and radially outside has the second outer circumferential side,
wherein the bearing ring is disposed radially inside the intermediate ring and radially outside rests against the fifth inner circumferential side of the intermediate ring.
7 . The pedestal bearing as claimed in claim 6 ,
wherein the intermediate ring has the groove channel extending radially from the second outer circumferential side in the direction of the fifth inner circumferential side.
8 . The pedestal bearing as claimed in claim 1 ,
wherein the groove channel is designed to be groove-shaped at least in portions and extends in the circumferential direction,
wherein the groove channel is designed to be radially inwardly open, and radially outwardly delimits the cooling duct.
9 . The pedestal bearing as claimed in claim 1 , wherein the rolling bearing outer race is a one piece body and/or the pedestal bearing housing is a one piece body.
10 . The pedestal bearing as claimed in claim 1 ,
having at least one fifth sealing element and a first sealing groove disposed on the second outer circumferential side or on the first inner circumferential side,
wherein the first sealing groove is designed to completely encircle the rotation axis,
wherein the fifth sealing element is at least in portions disposed in the first sealing groove,
wherein the fifth sealing element is designed to seal the cooling duct in a fluid-tight manner.
11 . The pedestal bearing as claimed in claim 10 ,
wherein the first sealing groove and the groove channel are formed on the first inner circumferential side or in the second outer circumferential side.
12 . The pedestal bearing as claimed in claim 1 ,
wherein the cooling duct system comprises a feed duct disposed in the pedestal bearing housing and a return duct disposed in the pedestal bearing housing,
wherein the feed duct and the return duct each end in the cooling duct in a mutually offset manner,
wherein the coolant is able to be fed into the cooling duct by means of the feed duct,
wherein coolant is able to be discharged from the cooling duct by means of the return passage.
13 . A production plant for producing and/or transporting hot-rolled material,
having a pedestal bearing as claimed in claim 1 , and the running body, the running body having a circumferentially disposed rolling surface for guiding, supporting and/or forming the hot-rolled material,
wherein the rolling bearing supports the running body so as to be rotatable about the rotation axis.
14 . The production plant as claimed in claim 13 , wherein the production plant is a continuous casting plant and wherein the hot-rolled material is a hot-cast slab strand.
15 . The pedestal bearing as claimed in claim 1 , wherein the production plant is a continuous casting plant.
16 . A pedestal bearing for bearing a running body in a production plant for producing a hot-rolled material, having
a pedestal bearing housing having a bearing receptacle,
a cooling duct system with at least one cooling duct,
a rolling bearing which is disposed in the bearing receptacle and has a rolling bearing outer race,
wherein the bearing receptacle has a first inner circumferential side encircling the rotation axis,
wherein the pedestal bearing housing has a first contact face,
wherein the pedestal bearing housing is designed to transfer a bearing force (F) from the rolling bearing outer race to the first contact face,
wherein the cooling duct extends in the circumferential direction about the rotation axis and is designed to guide a coolant which is able to be fed into the cooling duct for cooling the rolling bearing and/or the pedestal bearing housing,
wherein the first inner circumferential side of the bearing receptacle of the pedestal bearing housing delimits the cooling duct radially outside, and the rolling bearing outer race delimits the cooling duct radially inside,
wherein a second outer circumferential side of the rolling bearing outer race is divided into a cooling region and a supporting region,
wherein the cooling duct is disposed in the cooling region and does not extend into the supporting region,
wherein the cooling duct extends over a predefined first angular segment (α) about the rotation axis on the second outer circumferential side,
wherein the supporting region adjoins the cooling duct in the circumferential direction,
wherein the supporting region extends substantially over a predefined second angular segment (β),
wherein the second outer circumferential side in the supporting region is designed to be substantially partially cylindrical,
wherein the first inner circumferential side and the second outer circumferential side in the supporting region rest against one another across an entire area,
wherein the bearing force (F) is able to be transmitted predominantly via the supporting region to the pedestal bearing housing,
wherein the bearing force (F) is directed so as to proceed from the rotation axis to the supporting region, and
wherein the first angular segment (α) includes an angle in the range 140° up to and including 330°, about the rotation axis.
17 . The pedestal bearing as claimed in claim 16 , wherein the first angular segment (α) includes an angle in the range 180° to 300°, about the rotation axis.