71results about "Current collector maintenance" patented technology

A male F-Type coaxial cable connector has an improved RF shield including a bridge located between and electrically interconnecting a connector fastening nut and a connector body portion.

A brush holder system includes a stationary support member having at least one groove, and a fork electrical connector. A brush retainment member is configured to be releasably affixed to the stationary support member. The brush retainment member has at least one rail configured to slide along the at least one groove. The brush retainment member has a knife electrical connector configured to mate with the fork electrical connector. A radio frequency identification device (RFID) tag is mounted on the brush retainment member, and the RFID tag is configured to monitor brush wear and communicate brush wear status to a monitoring system. The stationary support member is configured for electrical connection to a collector mount and the brush retainment member is configured to retain at least one brush.

A surface of a commutator 5 is rubbed by a shakedown brush 21 other than ordinary brushes 11 to produce a carbon coat, whereby a shakedown process can be reduced or abolished.

A brush holder apparatus includes a stationary support member having at least one groove, and a fork electrical connector. The stationary support member has a conductive bar configured to pass through a portion of the stationary support member's main body. The conductive bar is configured to provide electrical conductivity with a collector mount and the fork electrical connector. A brush retainment member is configured to be releasably affixed to the stationary support member. The brush retainment member has at least one rail configured to slide along the at least one groove, and a knife electrical connector configured to mate with the fork electrical connector. The stationary support member is configured for electrical connection to a collector mount and the brush retainment member is configured to retain at least one brush.

The invention relates to a work platform for testing performances of fuel lift pump metallic brush connectors which comprises feet (1), a mount (3) placed on the feet (1), a pushing structure (4) placed on the mount (3); a pressing head (7) placed under the pushing structure (4) and a plug seat (5) for docking with metallic brush that placed under the pressing head (7); a metallic brush clamp (2) on the feet (1) under the pushing structure (4); and two contact points on the clamp (2) for connecting with two metallic brushes in the tested metallic brush mount.

The invention relates to a method for repairing a collecting ring on line. In the method, the collecting ring is repaired on line under the condition that a motor is electrically operated, the collecting ring is driven to rotate by the power of the motor, and insulation protection treatment is carried out on the outsides of the collecting ring and a tool. The linear speed of the collecting ring iscontrolled to between 2 and 6 meters per second and the penetration of the tool is controlled to between 0.05 and 0.30mm. Compared with the prior art, the method has the advantage that the method repairs the collecting ring on line under the condition that the motor is electrically operated, shortens repair period, and improves work efficiency and enterprise benefit.

The invention relates to the field of motors, and specifically relates to an easy-to-clean brush type alternating-current motor. The motor comprises a motor shell, a stator, a rotor, a motor spindle, and a fan. The motor further comprises a brush cover, an insulating sleeve, a slip ring, a brush rod, brushes, a brush cleaning device, a temperature sensor, a support seat, and a contact position sensor. The slip ring is fixedly connected to the insulating sleeve. The insulating sleeve is fixedly connected to the motor spindle. The brush rod is fixedly connected to the upper part of the inner side of the brush cover. The three brushes are uniformly mounted on the brush rod at equal intervals. The brush cleaning device is disposed on the upper part of the brush cover. The support seat and the contact position sensor are disposed on the lower part of the brush cover. The easy-to-clean brush type alternating-current motor is humanized in design, convenient to operate, and labor-saving. The incidence of electric sparks is reduced.

The invention provides a collecting sliding ring grinding device built in an electric device and the electric device. The grinding device comprises a clamping part, a grinding tool and a press-down mechanism, wherein the clamping part is fixed to a fixed part on the radial outer side of a collecting sliding ring, the grinding tool is fixed to the interior of the clamping part, one end of the grinding tool is opposite to the surface of the collecting sliding ring, and the press-down mechanism is connected with the other end of the grinding tool and used for making the grinding tool press a to-be-ground surface of the collecting sliding ring so that the grinding tool can make contact with the to-be-ground surface of the collecting sliding ring. The number of the grinding device is at least one, the grinding device is arranged on a current input and gathering copper bar, when the surface of the collecting sliding ring needs to be ground, the press-down mechanism presses the grinding tool to the surface of the collecting sliding ring, the electric device works and drives the collecting sliding ring to rotate, accordingly when the electric device normally works, the surface of the collecting sliding ring can be ground, the electric device is prevented from being stopped, and the work efficiency of the electric device is improved.

The invention discloses a motor slip ring online repair apparatus. A horizontal sliding groove (102) and a fixed bracket (106) are arranged on a fixed support base (101); a slip ring processing machine tool (2) is arranged at the lower end of a perpendicular sliding block (108); the perpendicular sliding block (108) extends into a cover shell (7) of a motor slip ring (6); a lead screw (3) is alsoarranged on the side surface of the fixed support base (101); a perpendicular toothed groove (113) is formed in the horizontal sliding groove (102); and a clamping tooth block (112) is arranged on thefixed bracket (106). In slip ring reaping, detaching of the slip ring from the motor is not needed, instead, only the cover shell of the motor slip ring needs to be detached, so that fault power downtime caused by slip ring detachment and installation can be avoided; the feeding magnitude in slip ring repairing can be controlled extremely easily, so that high processing precision and high smoothness and tidiness of the repaired slip ring are realized; and when the repair apparatus is used for repairing of the motor slip ring of a crane, convenience in use, and shortening of fault processingtime and power down time are realized.

A method for in-situ solid lubrication of sliding electrical contacts includes the steps of providing a device having a movable electrically conductive first member and an electrically conductive second member, the first and second member being in electrical contact at a slideable electrical contact, and automatically applying an electrically conductive solid lubricant transfer film to the slideable electrical contact during operation of the device. The applying step can be a deposition of the electrically conductive solid lubricant transfer film on a surface of the first member, wherein the electrically conductive solid lubricant transfer film is carried by movement of the first member to the electrical contact.

The invention discloses a portable generator collecting ring automatic sweeping apparatus. The apparatus comprises a body. A front end of the body is provided with a hairbrush and an air exhaust opening. The air exhaust opening is connected to a dust collection pipeline via an air exhaust channel arranged in the body or an air exhaust pipeline arranged on the body. A rear end of the dust collection pipeline is connected to an air suction device. After the air suction device is started, through the dust collection pipeline, a gas and a carbon powder are inhaled from the air exhaust opening. Byusing the sweeping apparatus, the carbon powder can be removed rapidly, and a lot of time is saved. A front end of a suction inlet is provided with the hairbrush. When a generator carries out idle running, through a fixing support, the suction inlet of the sweeping apparatus is fixedly arranged on a conducting ring. The hairbrush and a collecting ring are contacted. The hairbrush is contacted witha rotated collecting ring and generates a cleaning effect. The carbon powder on the collecting ring is brushed down and the suction inlet removes the carbon powder so that secondary pollution is avoided and the collecting ring is conveniently and rapidly cleaned. The apparatus is convenient to carry, the size is small, and usage is convenient and flexible. And the apparatus can be fixedly used and can be used in a portable mode.

A shunt extends from a brush received by a brush box of a brush holder. The first end of the shunt can be connected to the brush, and the second end of the shunt can connect to the brush holder. A lever connects to a back plate of the brush holder, and the lever may reversibly and selectively rotate between a first position and a second position; the lever can have a distal portion, and the second position of the lever secures a portion of the shunt between the distal portion of the lever and another component of the brush holder. The secured portion of the shunt can restrict downward movement of the brush in the brush box, while a spring pushes downward on the brush in the brush in the brush box, to thereby fixedly position the brush in the brush box.

The invention discloses a repair method for a motor commutator, which belongs to the technical field of aviation equipment. The commutator of the motor is repaired, cleaned, surface activated, electroplated after washing, and a coating layer of 1.5-3 mm is formed on the surface of the commutator; the coating layer is polished to make the thickness of the coating reach 0.5 ~1mm, surface roughness up to 1.6; Finally, slotting is carried out so that the slot width is the same as that of the unworn slot, and the slot depth is not less than 0.5mm; the repair of the commutator is completed. The above-mentioned repair method is simple and easy to implement. The diameter of the repaired commutator is 30±0.1mm, which meets the requirements of the technical standard; compared with that before the wear, the wear resistance of the repaired commutator surface is increased by 5%.

The invention discloses a groove broacher for a commutator of a direct current motor and relates to a groove broacher for a mica sheet groove in a commutator of a direct current motor. The groove broacher comprises a rotor spider, a motor, a cutting tool, a vertical adjustment controller and a horizontal adjustment controller, wherein the motor is arranged on a cutting frame; the cutting tool is connected with the motor; the vertical adjustment controller is used for controlling the vertical movement of the cutting frame; and the horizontal adjustment controller is used for controlling the horizontal movement of the cutting frame. The groove broacher is used as a tool special for repairing the direct current motor, so that the maintenance quality and the time limitation of the direct current motor are guaranteed; and the original manual work is changed into mechanical operation, so that the physical labor is greatly reduced, and the market blank is filled.

A brush holder apparatus includes a stationary support member having at least one groove and a fork electrical connector. A brush retainment member is configured to be releasably affixed to the stationary support member. The brush retainment member has at least one rail configured to slide along the at least one groove. The brush retainment member has a knife electrical connector configured to mate with the fork electrical connector. The stationary support member is configured for electrical connection to a collector mount and the brush retainment member is configured to retain at least one brush.

The invention discloses a replacement method of an inter-electrode insulating sleeve of a generator collector ring. The replacement method comprises the following steps that 1), a part of a tensioningbolt and corresponding tensioning nuts are removed between an upper collector ring and a lower collector ring, and then a part of insulating sleeve located on the upper surface of the upper collectorring and on the lower surface of the lower collector ring is removed; and step 2), an operation screw rod and an operation nut are installed on the upper collector ring and the lower collector ring,and then the residual tensioning bolt and the residual tensioning nuts between the upper collector ring and the lower collector ring are removed, and the residual insulating sleeve which is located onthe upper surface of the upper collector ring and on the lower surface of the lower collector ring is replaced. By adoption of the replacement method, normal operation and maintenance work of the collector ring are facilitated.