16results about "Current collector maintenance" patented technology

The invention relates to a method for repairing an electric machine (1) for a motor vehicle, in which the electric machine (1) has a rotor (3) rotatable about an axis of rotation (4) relative to a stator (2) of the electric machine (1), the rotor (3) comprising a rotor shaft (5), at least one winding, and at least one first contact element (6) electrically connected to the winding and extending completely around the rotor shaft (5) in the circumferential direction and rotatable with the rotor shaft (5). The stator (2) is provided to have at least one second contact element (8) extending around the rotor shaft (5) in the circumferential direction by less than 180 degrees, wherein the first contact element (6) and the second contact element (8) are designed to form a sliding contact for transmitting electrical energy.

The invention discloses a sleeve replacement device for a component, an application and a replacement method, solves the problem that in the prior art, a carbon brush braid sleeve is large in replacement difficulty, only a whole grounding device can be replaced, and the maintenance cost is high, and has the beneficial effects that the carbon brush braid annular sleeve can be replaced, and the maintenance cost is reduced. According to the specific scheme, the sleeve replacement device for the component comprises a shell; the shell supports the expansion mechanism, the expansion mechanism comprises a multi-claw assembly, the multi-claw assembly is arranged on the outer side of the shell, the multi-claw assembly comprises at least two supporting claws, the sleeve for the component is arranged in the annular direction of the multiple supporting claws under the action of external force, and the multiple supporting claws can drive the sleeve for the component to be opened in the radial direction so as to contain a carbon brush braid; and the driving mechanism is supported through the shell, and the driving mechanism drives the multiple supporting claws to stretch or retract.

The utility model discloses all-in-one machine equipment for machining and overhauling a commutator, and relates to the technical field of commutator machining and overhauling. The turning tool rest and the milling tool rest are movably arranged on the base, the turning tool rest comprises a roundness turning tool used for conducting roundness correction on a commutator of the motor rotor, and the milling tool rest comprises a grooving and chamfering tool used for conducting grooving and chamfering on a mica groove of the commutator. Under the condition that the motor rotor is rotatably mounted at the mounting station of the base and the all-in-one machine equipment is in the first state, the roundness turning tool directly faces a commutator of the motor rotor, and the grooving and chamfering tool and the commutator are staggered; and when the motor rotor is rotatably mounted on the mounting station of the base and the all-in-one machine equipment is in the second state, the roundness turning tool and the commutator of the motor rotor are staggered, and the grooving and chamfering tool directly faces the commutator. According to the scheme, the problem that the processing procedure and the maintenance procedure of an existing commutator are both complex can be solved.

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 discloses a conductive slip ring liquid metal liquid level monitoring and supplementing device, and relates to the technical field of liquid metal conductive slip rings. The problems that an existing liquid metal conductive slip ring needs to be frequently maintained due to abrasion or liquid metal loss caused by long-term operation, and the operation cost is high are solved. The lower end of a liquid level meter sequentially penetrates through a liquid metal liquid level monitoring hole I and a liquid metal liquid level monitoring hole II, the lower end of a binding post sequentially penetrates through a wiring hole I and a wiring hole II, a liquid metal supplementing device is arranged on the upper surface of an insulating base of the device, and the bottom of the liquid metal supplementing device communicates with a liquid metal supplementing hole II; the rotating main shaft is a hollow shaft, a plurality of main shaft channels penetrating through the inner side face and the outer side face of the rotating main shaft are formed in the rotating main shaft, and the multiple main shaft channels correspond to the multiple liquid metal conductive cavities in a one-to-one mode. The device is used for monitoring the liquid level of the liquid metal in the liquid metal conductive slip ring and supplementing the liquid metal in real time, and can also monitor the leakage condition of the liquid metal.

To provide a brush and a brush holder assembly for use in electrical equipment and / or slip ring assembly.SOLUTION: A brush assembly 45 includes a carbon brush 14, a first lead wire 46, a second lead wire 44a, a third lead wire 44b, and a terminal 42. The first end region of the first lead wire 46 is joined to the first end region of the second lead wire 44a at a splice joint 50, and the second end region of the first lead wire 46 is joined to the first end region of the third lead wire 44b at the splice joint 50. The second end region of the second lead wire 44a and the second end region of the third lead wire 44b are joined to the carbon brush 14. The splice joint 50 is located between the terminal 42 and the carbon brush 14, and is spaced apart from both the terminal 42 and the carbon brush 14.SELECTED DRAWING: Figure 3

The invention provides a carbon brush automatic centering device based on a temperature control air column and an operation method, and belongs to the technical field of motor collector rings. According to the device, an existing brush box is improved, an original constant-pressure spring is removed, five air columns are arranged at the bottom of the brush box, four air columns are distributed diagonally, and one air column is arranged in the middle. Each air column consists of an air sleeve, an air chamber and a piston rod, and the air chamber is filled with air; the top end of the piston rod is connected with a spring base, and a spring is installed between the spring base and a spring upper end seat, so that the springs of the five air columns act on the carbon brush together. The brush box is parallel to the collector ring, and the distance between the brush box and the collector ring is adjusted by rotating the hand frame, thereby ensuring that the carbon brush in the brush box is attached to the side surface of the collector ring. When the carbon brush deviates, the spring at the corresponding position can be stretched or compressed, and the deformation of the spring is the direct reflection of the deviation. By controlling the temperature of air in each air column, the volume of the air chamber is changed by utilizing the thermal expansion and cold contraction characteristics of air, and the piston rod is driven to stretch.

The invention relates to a generator-motor system for a vehicle, comprising an electric motor driven by a first rechargeable battery and, at another axle, a generator that charges a second rechargeable battery. A control electronics system switches rechargeable batteries to drive the vehicle or to charge, supplies the vehicle electrical system, boosts braking force etc. A DC generator is connected to one of the rechargeable batteries and / or the vehicle electrical system via slip rings. Optionally, the generator comprises three rotors that can also have differing pole numbers.

The invention relates to a generator-motor system for a vehicle, comprising an electric motor driven by a first rechargeable battery and, at another axle, a generator that charges a second rechargeable battery. A control electronics system switches rechargeable batteries to drive the vehicle or to charge, supplies the vehicle electrical system, boosts braking force etc. A DC generator is connected to one of the rechargeable batteries and / or the vehicle electrical system via slip rings. Optionally, the generator comprises three rotors that can also have differing pole numbers.

The invention provides a multi-station annular busbar resistance welding machine which comprises a welding machine assembly which comprises a supporting frame, a welding machine body is fixedly installed at the top of the supporting frame, a lower connecting base is fixedly installed at the bottom of one side of the welding machine body, and a vertical lower welding column is fixedly installed on the lower connecting base; a first vertical driving rod is fixedly installed at the top of one side of the welding machine body, an upper connecting base is fixedly installed at the bottom of the driving rod, and an upper welding column capable of being attached to the top of the lower welding column is fixedly installed on the upper connecting base. An existing mode that a busbar assembly and a wiring board are held by hands respectively and a connecting board of the busbar assembly is attached to the wiring board is replaced, the positioning precision is improved, the welding precision is improved, and the product quality is improved; the transverse and longitudinal stretching detection effect on the welding position between the wiring board and the connecting board is achieved, so that subsequent welding strength detection between the wiring board and the connecting board is not needed, and the machining efficiency is improved.

The application provides a sliding wire slide online repairing device and a use method, the sliding wire slide online repairing device is fixed on a trolley, moves along with the trolley and repairs the sliding wire slide online, and comprises a repairing mechanism, the repairing mechanism comprises a base, a polishing part used for abutting with the sliding wire slide and a supporting rod, the supporting rod is fixed on the bottom of the base, and the polishing part is arranged on the top of the base; a support, the support comprises a clamp used for being fixed with the trolley, a connecting piece and an extending frame, the clamp is fixed on the connecting piece, the connecting piece is connected with the extending frame, and the supporting rod is arranged on the extending frame; the sliding wire slide online repairing device and the use method of the application repair the sliding wire slide through the repairing mechanism fixed on the trolley and moving along with the trolley, and solve the problems that the sliding wire slide cannot be repaired online and the repairing efficiency is slow in the prior art.

The utility model relates to a slip ring grinding and repairing device which comprises a mounting seat, a bottom plate is arranged on the mounting seat, a lead screw is rotatably arranged on the bottom plate, a hand wheel is mounted at one end of the lead screw, a sliding block in sliding fit with the bottom plate is in threaded connection with the lead screw, an angle adjusting assembly is arranged on the sliding block, and a grinding device is mounted on the angle adjusting assembly. The slip ring is ground in the running state of the generator, the repair convenience can be improved, the influence on the coaxiality of the slip ring due to the problem of installation errors during repair can be avoided, the overall size of the device is small, and the device is suitable for machining in a narrow space between a generator bearing seat and a rotor.

The utility model provides a carbon powder collecting device for a slip ring chamber, which comprises a slip ring box, a carbon brush slip ring system is mounted in the slip ring box, and a driving shaft is mounted at one end of the carbon brush slip ring system; two fans are symmetrically mounted at the top end of the slip ring box, the bottom end of the slip ring box is fixedly connected with a base, and a toner cartridge is mounted in the base; four air outlets are formed in the side wall of the base, and a filter element is installed in each air outlet. The carbon powder collecting device for the slip ring chamber has the advantages of being integrated in structure, convenient to install and maintain, convenient to collect carbon powder and capable of improving the heat dissipation effect.

The invention relates to a method for repairing an electric machine (1) for a motor vehicle, in which the electric machine (1) has a rotor (3) with at least one winding and at least one first contact element (6) electrically connected to the winding, which is provided for forming a sliding contact designed for transmitting electrical energy with at least one second contact element (7) of a stator (2) of the electric machine (1). An intermediate element (8), formed separately from the first contact element (6), is arranged on the first contact element (6) and is electrically connected to the first contact element (6).

The invention relates to a method for repairing an electric machine (1) for a motor vehicle, in which the electric machine (1) has a rotor (3) rotatable about an axis of rotation (4) relative to a stator (2) of the electric machine (1), the rotor (3) comprising a rotor shaft (5), at least one winding, and at least one first contact element (6) electrically connected to the winding, extending completely around the rotor shaft (5) in the circumferential direction and rotatable with the rotor shaft (5). The invention also provides for the stator (2), which has at least one second contact element (8) extending around the rotor shaft (5) in the circumferential direction by less than 180 degrees. The first contact element (6) has an outer circumferential surface (9) that projects outwards in the radial direction of the rotor shaft (5).The second contact element (8) has a first inner circumferential surface (10) which points inwards in the radial direction of the rotor shaft (5) and faces the outer circumferential surface (9).

A method for producing a shaft grounding ring includes providing a shaft grounding ring having an annular main body and contact elements arranged on the main body. The contact elements are electrically conductive and plastic-based. The contact elements are configured to establish an electrically conductive sliding contact with a circumferential surface of a shaft or of a sleeve placed onto the shaft. The contact elements are elastically bendable such that the contact elements are configured to preload the electrically conductive sliding contact. Additionally, the method includes thermally preconditioning the shaft grounding ring before use.