US 11,939,166 B2
Differential traveling roller driven by built-in outer rotor motor
Huichang Cao, Beijing (CN); Min Li, Beijing (CN); and Baobing Du, Beijing (CN)
Assigned to Greenman Machinery Company, Beijing (CN)
Filed by Greenman Machinery Company, Beijing (CN)
Filed on Mar. 16, 2022, as Appl. No. 17/695,871.
Application 17/695,871 is a continuation of application No. PCT/CN2021/075397, filed on Feb. 5, 2021.
Claims priority of application No. 202011558347.X (CN), filed on Dec. 25, 2020.
Prior Publication US 2022/0204279 A1, Jun. 30, 2022
Int. Cl. B65G 23/08 (2006.01); F16D 41/16 (2006.01); H02K 7/116 (2006.01)
CPC B65G 23/08 (2013.01) [F16D 41/16 (2013.01); H02K 7/116 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A differential traveling roller driven by a built-in outer rotor motor, comprising:
a left roller;
a right roller;
a support shaft;
a driving device; and
a sealing device,
wherein
the driving device and the sealing device are provided in an inner cavity formed by the left roller and the right roller,
a sealing structure is formed by and between the left roller and the right roller,
the support shaft is provided on an axis of the left roller and the right roller,
an inner wall of the left roller is connected to a left support plate, and an inner wall of the right roller is connected to a right support plate,
an outer ring of each of the left support plate and the right support plate is provided with a notch for dust to flow out,
the driving device comprises an outer rotor motor sleeved on the support shaft,
two end walls of a rotor body of the outer rotor motor are respectively connected to end cap seats,
transmission devices are respectively provided between the end cap seats and the corresponding support plates on corresponding sides,
pawl members of the transmission devices are fixedly sleeved on the end cap seats,
ratchet wheel members of the transmission devices are connected to the corresponding support plates,
the sealing device is provided between the left support plate and the right support plate and is circumferentially provided outside the rotor body of the outer rotor motor,
a left supporting sealing plate and a right supporting sealing plate are provided on the support shaft at ends of the left roller and the right roller, respectively, and
an end of the support shaft is provided with a positioning structure to prevent the support shaft from rotating.