4results about "Brushes manufacture" patented technology

The present application relates to the field of rail transit vehicle carbon brush technology, in particular to a rail transit grounding carbon brush device based on high-purity rare earth and graphite compound and a method thereof, comprising a grounding device, the grounding device comprising a brush holder, a pre-tightening piece arranged inside the brush holder and used for applying a pre-tightening force to the graphite carbon brush, a connecting piece connected to the bottom of the pre-tightening piece, and an electromagnetic driving piece used for regulating the pre-tightening force intensity of the pre-tightening piece through the connecting piece. The present application regulates the compression of the pressing plate on the first spring by constructing the linkage compensation structure of the electromagnetic driving piece, the connecting piece and the pre-tightening piece, so as to realize the automatic compensation of the pre-tightening force. The structure makes the contact pressure of the graphite carbon brush stable after wear, and avoids the poor conduction caused by insufficient pressure.

The invention starts from a bearing assembly with a brush assembly (10), the brush assembly comprising a flange (44) and at least one brush (18) fixed to the flange (44). It is proposed that the flange (44) is fixed to a bearing ring (14) of the bearing assembly at least by means of a recess (30) of the bearing ring (14).

The invention starts with a bearing assembly having at least one brush assembly (10), the brush assembly comprising a first part (12) fixed to a bearing ring (14) of the bearing assembly, at least a second part (16) fixed to the first part (12), and an electrically conductive brush (18) fixed to the second part (16), wherein the first part (12) abuts against a first side (20) of the second part (16), the first side being a face side of the second part (16). It is suggested that the first part (12) abuts against a second side (22) of the second part (16) located opposite the first side (20).

This utility model relates to the technical field of wire-filling devices, and discloses a high-efficiency carbon brush wire-filling device, including a mounting plate and a cylinder. The cylinder is equipped with a wire-filling mechanism for continuous wire filling. The wire-filling mechanism includes a striking piston rod, which is slidably connected to the cylinder. The cylinder has an upper air inlet, and an upper connecting pipe for connecting to an air injection device is installed on the upper air inlet. An upper solenoid valve for controlling the air intake and exhaust is installed on the upper connecting pipe. In this utility model, the air supply in and out of the cylinder is controlled by the upper and lower solenoid valves, thereby controlling the up-and-down movement of the striking piston rod. Simultaneously, the pressure inside the cylinder can be adjusted to control the impact force of the striking piston rod, thus controlling the striking force of the striking piston rod. This reduces the likelihood of carbon brush cracking and increases pull-out force.