US 12,264,705 B2
Recirculating roller bearing
Hongjun Guo, Shanghai (CN); Lei Yuan, Shanghai (CN); Jianluo Mei, Shanghai (CN); Kai Cheng, Shanghai (CN); Ci Song, Shanghai (CN); and Yuanzhen Wu, Shanghai (CN)
Assigned to KIS Bearing Technology (Asia Pacific) Co., Ltd., Shanghai (CN); and THB BEARINGS CO., LTD., Shanghai (CN)
Filed by KIS Bearing Technology (Asia Pacific) Co., Ltd., Shanghai (CN); and THB BEARINGS CO., LTD., Shanghai (CN)
Filed on Apr. 3, 2023, as Appl. No. 18/129,915.
Claims priority of application No. 202211478002.2 (CN), filed on Nov. 23, 2022.
Prior Publication US 2024/0167505 A1, May 23, 2024
Int. Cl. F16C 29/06 (2006.01); F16C 29/00 (2006.01)
CPC F16C 29/0602 (2013.01) [F16C 29/004 (2013.01); F16C 29/0604 (2013.01); F16C 29/0607 (2013.01); F16C 29/0619 (2013.01); F16C 2326/00 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A recirculating roller bearing, comprising a front cover plate, a rear cover plate, an inner supporter, a sealing covering, a plurality of rolling carriers and at least one connector, wherein:
the front cover plate and the rear cover plate are detachably connected to two opposite sides of the inner supporter respectively, the sealing covering is arranged around the inner supporter along peripheries of the front cover plate and the rear cover plate, and two lateral edges of the sealing covering are arranged between the peripheries of the front cover plate and the rear cover plate in a sealing manner;
a circulating guiding path is formed between the front cover plate, the rear cover plate, the inner supporter and the sealing covering, and the circulating guiding path comprises a sealing portion and an opened load-bearing portion;
the plurality of rolling carriers are all filled in the circulating guiding path, each of the plurality of rolling carriers is in rolling fit with the inner supporter, and each of the plurality of rolling carriers is in rolling fit with a retractable fork when passing the opened load-bearing portion of the circulating guiding path; and
the at least one connector is configured to detachably fix the inner supporter, the front cover plate and the rear cover plate on a main frame body,
a load-bearing point is defined at a contact position between a radially outmost portion of the plurality of rolling carriers at the opened load-bearing portion and the retractable fork, two ends of the sealing covering at the opened load-bearing portion are provided with a protruded portion protruding relative to the load-bearing point respectively, and the protruded portion is elastic and is configured to abut against a contact surface of the retractable fork in a sealing manner.
 
17. A recirculating roller bearing, comprising a front cover plate, a rear cover plate, an inner supporter, a sealing covering, a plurality of rolling carriers and at least one connector, wherein:
the front cover plate and the rear cover plate are detachably connected to two opposite sides of the inner supporter respectively, the sealing covering is arranged around the inner supporter along peripheries of the front cover plate and the rear cover plate, and two lateral edges of the sealing covering are arranged between the peripheries of the front cover plate and the rear cover plate in a sealing manner;
a circulating guiding path is formed between the front cover plate, the rear cover plate, the inner supporter and the sealing covering, and the circulating guiding path comprises a sealing portion and an opened load-bearing portion;
the plurality of rolling carriers are all filled in the circulating guiding path, each of the plurality of rolling carriers is in rolling fit with the inner supporter, and each of the plurality of rolling carriers is in rolling fit with a retractable fork when passing the opened load-bearing portion of the circulating guiding path;
the at least one connector is configured to detachably fix the inner supporter, the front cover plate and the rear cover plate on a main frame body;
the at least one connector successively extends through the front cover plate, the inner supporter and the rear cover plate, an extension end of the at least one connector is provided with a connection portion detachably connected to the main frame body; and
the front cover plate is provided with a first through hole, the inner supporter and the rear cover plate are provided with a second through hole respectively, wherein a diameter of the first through hole is larger than a diameter of the second through hole, an end of the at least one connector away from the extension end is provided with a limiting protrusion, and the limiting protrusion is configured to be embedded in the first through hole and abut against a side of the inner supporter facing the front cover plate.
 
18. A recirculating roller bearing, comprising a front cover plate, a rear cover plate, an inner supporter, a sealing covering, a plurality of rolling carriers and at least one connector, wherein:
the front cover plate and the rear cover plate are detachably connected to two opposite sides of the inner supporter respectively, the sealing covering is arranged around the inner supporter along peripheries of the front cover plate and the rear cover plate, and two lateral edges of the sealing covering are arranged between the peripheries of the front cover plate and the rear cover plate in a sealing manner;
a circulating guiding path is formed between the front cover plate, the rear cover plate, the inner supporter and the sealing covering, and the circulating guiding path comprises a sealing portion and an opened load-bearing portion;
the plurality of rolling carriers are all filled in the circulating guiding path, each of the plurality of rolling carriers is in rolling fit with the inner supporter, and each of the plurality of rolling carriers is in rolling fit with a retractable fork when passing the opened load-bearing portion of the circulating guiding path;
the at least one connector is configured to detachably fix the inner supporter, the front cover plate and the rear cover plate on a main frame body; and
the sealing covering has an annular structure, which is provided with a load-bearing groove in an area corresponding to the opened load-bearing portion, and the load-bearing groove penetrates the sealing covering only in a load-bearing direction.