US 11,725,705 B2
Braking torque sensor of brake
Zhengfang Han, Shijiazhuang (CN); Wulin Han, Shijiazhuang (CN); Qingsheng Li, Shijiazhuang (CN); Zengmin Hou, Shijiazhuang (CN); Yonglei Zhao, Shijiazhuang (CN); Dejun Cui, Shijiazhuang (CN); and Xiongyi Hao, Shijiazhuang (CN)
Assigned to SHIJIAZHUANG WULONG BRAKE CORPORATION, Shijiazhuang (CN)
Appl. No. 17/780,265
Filed by SHIJIAZHUANG WULONG BRAKE CORPORATION, Shijiazhuang (CN)
PCT Filed Apr. 1, 2021, PCT No. PCT/CN2021/084807
§ 371(c)(1), (2) Date May 26, 2022,
PCT Pub. No. WO2021/238403, PCT Pub. Date Dec. 2, 2021.
Claims priority of application No. 202010457345.5 (CN), filed on May 26, 2020.
Prior Publication US 2022/0412419 A1, Dec. 29, 2022
Int. Cl. F16D 66/00 (2006.01); G01L 5/28 (2006.01)
CPC F16D 66/00 (2013.01) [G01L 5/28 (2013.01); F16D 2066/005 (2013.01); F16D 2066/006 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A braking torque sensor of a brake, comprising:
a long circular shaft hole arranged on a brake arm of the brake and configured to support a hinge shaft of a brake element, wherein when a braking action is performed by the brake, a length direction of the long circular shaft hole is consistent with a direction of a friction force acted on a position of a friction surface of the brake element, and the position of the friction surface of the brake element is located at a same height of a shaft center of the hinge shaft of the brake element, so that the hinge shaft of the brake element generates a displacement that varies with a magnitude of the friction force in a direction of the friction force when the braking action is performed by the brake;
a plate-shaped connecting plate, wherein one end of the connecting plate is fixed on the brake arm of the brake, and the other end of the connecting plate is sleeved on a hinge shaft of the brake element through a closed hole or an open groove, so that the shaft center of the hinge shaft of the brake element is located at a center position along a length direction of the long circular shaft hole of the brake arm when it is in a static state; the connecting plate is configured to detect a braking displacement generated by the hinge shaft of the brake element in the long circular shaft hole when the braking action is performed by the brake, and generate a plate deformation corresponding to the braking displacement; and
a tension sensor, fixed on an optimal position of a plate surface of the connecting plate where the plate deformation is generated, and configured to convert the plate deformation generated due to the braking action on the connecting plate into force information, and transmit the force information outwards in a form of an electrical signal or a digital signal.