1025results about "Rotary current collector" patented technology

The invention discloses a grounding device for a driving shaft of a motor. The grounding device comprises a motor shell and the driving shaft, the rubber pad is arranged at the top of the motor shell; the grounding assembly is arranged at the top of the rubber pad and comprises a conductive part, a pressurizing part is arranged in the conductive part, a second dismounting part is arranged in the conductive part, when the driving shaft rotates, the conductive outer ring and the conductive inner ring are driven to rotate, and the conductive block is limited by the L-shaped conductive plate and the conductive rod and cannot rotate; a conductive block is in contact with a conductive inner ring to form closing of a conductive circuit, meanwhile, a first spring pulls a conductive piece leftwards, and then a conductive rod and an L-shaped conductive plate are pulled, so that the conductive block makes contact with the inner wall of the conductive inner ring all the time, and even if abrasion is generated between the conductive block and the conductive inner ring, the conductive circuit is closed. And the conductive block can still move in a first spring pulling mode, and it is guaranteed that the conductive block makes contact with the inner wall of the conductive inner ring all the time.

A slip ring arrangement according to the invention for an electric machine comprises a first slip ring having a radial inner surface and a radial outer surface, a first contact pin forming an electrically conductive sliding contact with the first slip ring, a first conductor extending axially from the first slip ring and electrically connected to the first slip ring, and a substantially hollow cylindrical first support element having a radial inner surface and a radial outer surface. The first slip ring is arranged with its radial outer surface against the radial inner surface of the first support element. The first conductor is enclosed between the radial inner surface and the radial outer surface of the first support element.The first contact pin is guided radially displaceably within a second support element and is subjected to, or can be subjected to, force in a first radial direction. The second support element is arranged in a volume defined radially by the radial inner surface of the first slip ring, and the second support element is rotatably arranged relative to the first support element. Furthermore, the first contact pin can be subjected to force by a fluid on the side radially opposite the sliding contact. The invention further comprises a rotor of a separately excited synchronous machine.

The invention relates to a shaft grounding device for deriving an inductively generated voltage, current or charge from a first machine element (5), preferably a shaft, into a second machine element (1), having a shaft grounding element (4, 50) for discharging, according to the invention, the shaft grounding element (4, 50) is a component separated from a starting material, preferably a continuous article, said component being penetrated by channels (16) in the longitudinal direction thereof or being provided with perforations and / or surface structures and / or surface textures at least on the contact surface thereof with the first machine element. The invention also relates to a method for manufacturing the shaft grounding device.

This invention relates to a silver-graphite brush material and its preparation method. The material comprises graphite powder, thermosetting resin, additives, and silver, with the following mass percentages: 10-60% graphite powder; 2-20% thermosetting resin; 1-8% additives; and silver as the balance. This invention solves the problems of severe segregation, low interfacial strength, high preparation cost, and long production cycle in current silver-graphite brushes. The material prepared using the method described in this invention can reduce silver segregation, improve interfacial strength, and exhibit excellent comprehensive performance. Furthermore, this method is simple and easy to operate, enabling large-scale mass production.

A method is proposed for determining a zero-force reference position of a wet-running brush actuator (2) for external excitation of a rotor of an electric motor (EM) arranged on a rotor shaft (RW). While an electric vehicle with an electric motor (EM) is stationary and the rotor is externally excited, a spindle (10) of the brush holder (2), which has an electric stepper motor (4) with an integrated spindle drive, is moved away from the grinding brushes (B1, B2) until the contact between the grinding brushes (B1, B2) and the associated slip rings (SR1, SR2) reaches a contact quality limit, the position assumed by the spindle (10) being defined as the zero-force reference position, from which the steps of the stepper motor (4) are counted in order to variably press the grinding brushes (B1, B2) against the slip ring (SR1, SR2) as required. In addition, a computer program, a computer program product, a system, and an electric vehicle are proposed.

A slip ring arrangement according to the invention for an electric machine comprises a first slip ring module, comprising a first slip ring for electrical contact, a first conductor extending axially from the slip ring and electrically connected to the first slip ring, and a substantially hollow cylindrical first support element. The first slip ring is arranged on the support element in a first axial section on a radial outer surface. In a second axial section, the first conductor is enclosed by the first support element between a radial inner surface and a radial outer surface. Furthermore, a circumferential first web is arranged on the outer surface between the first axial section and the second axial section. The invention further comprises a rotor of a separately excited synchronous machine.

The utility model discloses a grounding carbon brush and position sensor combination assembly for an automobile high-voltage driving motor, which comprises a main shell and is characterized in that the left end of the main shell is an external connector, a connector insert is arranged in the external connector, a plurality of bolt mounting holes are arranged at the edge of the main shell, the bolt mounting holes at the left end and the right end of the main shell are connected with a brush carrier, and the brush carrier is connected with a motor. A carbon brush assembly is arranged in the brush carrier, a circular groove is formed in the main shell, and a movable carbon brush protection plate is clamped in the circular groove. Certain electronic devices are arranged between the grounding carbon brush connecting shaft and the ground and used for reducing common-mode voltage on the shaft, and the devices and the eddy current sensor share one PCB. Before the carbon brush assembly is installed, the head of the carbon brush body is fixed in the brush box through the carbon brush protection plate, an operator does not need to make contact with the carbon brush body during installation, when the assembly is installed, a motor shell can press the carbon brush protection plate in place, the carbon brush body automatically pops out to make contact with a shaft, and the failure hidden danger caused by installation is avoided.

The invention discloses an excitation carbon brush and collecting ring digital monitoring operation and maintenance system, method and device and a medium, and belongs to the technical field of power equipment monitoring, and the method comprises the steps: obtaining the real-time current data of a plurality of carbon brushes, and determining the deviation degree of each carbon brush current relative to a reference current; according to the generator operation condition parameters, determining a deviation threshold value used for judging carbon brush current abnormity; when it is detected that the current deviation degree of the target carbon brush exceeds a deviation threshold value, an adjustment control signal is generated; and responding to the adjustment control signal, performing mechanical stimulation operation on the target carbon brush, and changing the contact state of the target carbon brush and the collector ring. Automatic balance adjustment of the current of the carbon brush is realized through mechanical stimulation operation, and the service life of the carbon brush is prolonged.

Proposed is a shaft grounding ring including an annular housing having a first through hole in a central portion thereof through which a motor shaft passes in a front-back direction, and having brush mounting grooves arranged radially on a front thereof, a plurality of grounding brushes respectively inserted into the brush mounting grooves of the housing, and an elastic end of which is in electrical contact with an outer circumferential surface of the motor shaft, and an annular cover coupled to the housing with the grounding brushes in between to fix the grounding brushes, having a second through hole in a central portion thereof in a front-back direction, which communicates with the first through hole and through which the motor shaft passes, and having radially arranged pin holes drilled in the front-back direction so that contact pins of a pressing jig penetrate and contact the front of the housing.

A discharge device for discharging electric currents from a rotor part of a machine, said rotor part having a shaft, the discharge device comprising an axially displaceable contact element, which is at least partly accommodated in a guide, for forming an electroconductive sliding contact between a sliding contact surface of the contact element and a shaft contact surface of the shaft, the sliding contact surface being provided for forming the sliding contact, the contact element being electroconductively connected to the guide and / or a retaining element of the machine, and the contact element being prestressed towards the shaft contact surface by means of a spring element, the contact element being at least partly wetted with an oily fluid, in particular at least in the area of its sliding contact surface.

The utility model is applicable to the technical field of slip rings, and provides a slip ring applicable to a medical dual-mode imaging system, which comprises a rotor part and a stator part, and is characterized in that the stator part comprises an elastic sheet, a protective cover, a support, brush wires, an optical fiber baffle and a shell flange; the shell flange is fixed on the side wall of the protective cover, the support is fixed in the protective cover, the elastic piece is fixed on the support through a special jig, and the elastic piece is in a splayed shape. A row of brush wires are spot-welded at the tail end of the elastic sheet to serve as contacts for increasing the contact area between the conductive ring and the brush wires; the rotor part comprises a rotating shaft, a conducting ring, an insulating layer, an optical fiber assembly, a synchronizing wheel and an FC conversion component; and the rotating shaft is rotationally connected into the protective cover through a bearing. According to the slip ring, the problems that a common slip ring is short in service life and large in radial run-out at the rotating speed of 6000 rpm are solved, and continuous long-time normal transmission of the slip ring can be effectively guaranteed.

A discharge device for discharging electric currents from a rotor part of a machine having a shaft. The discharge device having an axially displaceable contact element received at least partially in a guide unit and serving to form an electrically conductive sliding contact between a sliding contact surface of the contact element and a shaft contact surface of the shaft, the contact element being connected to the guide unit and / or a retaining element of the machine in an electrically conductive manner and being pre-loaded towards the shaft contact surface by a spring element, the contact element being wetted at least partially by an oily fluid, at least one duct being provided at least in sections of the guide unit and / or of the contact element for the oily fluid, the duct being formed by the guide unit and the contact element.

The invention discloses a space light photoelectric composite slip ring which comprises a bearing, a rotor assembly and a stator assembly. The rotor assembly comprises a photoelectric slip ring main shaft frame, a conductive slip ring loop and an optical fiber collimator; the conductive slip ring loop is separated by a conductive slip ring insulating ring and is arranged at the periphery of the photoelectric slip ring main shaft frame; the photoelectric slip ring main shaft frame is connected with the inner ring of the bearing through a bearing inner pressing ring; the stator assembly comprises a photoelectric slip ring main shaft seat, a conductive slip ring brush holder and an eccentric gland. The conductive slip ring brush holder is connected with the photoelectric slip ring spindle seat; the eccentric gland is connected with a photoelectric slip ring spindle seat, and an unequal-thickness adjusting ring is arranged between the eccentric gland and the photoelectric slip ring spindle seat; the optical fiber collimator is mounted on the eccentric gland; the photoelectric slip ring spindle seat is connected with the outer ring of the bearing through an eccentric gland. An optical transmission system and an electric transmission system are integrated into the same shaft system, the purposes of miniaturization and light weight are achieved, the cost is controlled, precision and reliability are high, and the optical transmission system has good environmental applicability and long service life.

The utility model provides a liquid-cooled ultrahigh rotation speed liquid conductive slip ring, which belongs to the technical field of conductive slip rings, and comprises a shell, a bearing, a rotor shaft and a stator shaft, the stator shaft is arranged at one end of the shell, the rotor shaft is rotatably arranged at the other end of the shell through the bearing, a cooling liquid flow channel is arranged in the shell around the periphery of the bearing, and the cooling liquid flow channel is communicated with the stator shaft. A cooling liquid opening communicated with the cooling liquid flow channel is formed in the cooling liquid flow channel; the cooling liquid flow channel is arranged in the shell, and the cooling liquid opening is formed in the cooling liquid flow channel, so that cooling liquid can be effectively introduced for heat dissipation, heat accumulation generated when a bearing and a sealing piece rotate at a high speed is reduced, the overheating condition is prevented, lubrication failure and part abrasion caused by overheating are reduced, and the service life of the bearing is prolonged. Therefore, the service life of the slip ring is prolonged and the reliability of the conductive slip ring is improved.

The utility model discloses a slip ring for a motor, relates to the technical field of electric slip rings, and aims to solve the problems that the slip ring provided by the background technology is damaged due to long-time operation, low inter-ring insulation, low ground insulation and the like easily occur, and the existing slip ring is large in size, heavy in weight and low in practicability. Comprising an installation mechanism, the installation mechanism comprises an inner steel sleeve and an inner insulation sleeve, a slip ring assembly is arranged outside the inner insulation sleeve, the slip ring assembly comprises three slip ring sleeves, three leads and two inter-ring insulation sleeves, connecting grooves are formed in the outer walls of one sides of the slip ring sleeves, the three leads are fixedly arranged on the inner walls of the three slip ring sleeves respectively, and the outer walls of the inner insulation sleeve are sleeved with the two inter-ring insulation sleeves respectively. A small end cover is arranged outside the sliding ring sleeve, and six installation openings are formed in the small end cover. The utility model has the advantages of small volume, light weight, compact structure and large conductive bearing capacity, the phenomena of low inter-ring insulation, low ground insulation and the like are not easy to occur in the long-time operation process, and the practicability is improved.

The high-frequency anti-interference rotary connector comprises a plurality of conducting rings and a plurality of electric brush sets, electric brushes in the same electric brush set are connected through inner-layer clad copper, and the electric brush sets in the adjacent state form a second cable connection set. The central electric brush group in the second cable connection group is used for connecting an inner conductor of a second radio frequency cable, and the remaining electric brush groups at two sides of the central electric brush group are used for connecting an outer conductor of a corresponding layer of the second radio frequency cable, and the electric brush groups connected with the outer conductor of the same layer form an outer shielding ring through outer layer copper coating connection. The plurality of outer shielding rings are radially distributed by taking the electric brush group in the middle as a center, simulate a corresponding coaxial cable structure and wrap and protect coaxial radio frequency signals; protrusions are formed on the conducting ring located on the outermost side in the first cable connection set, the electric brush sets are located between the two protrusions, the two protrusions simulate an outer shielding layer of a coaxial cable structure, and interference of external signals on coaxial radio-frequency signals is avoided.

A shaft grounding member for a rolling bearing, the shaft grounding member being mounted on a rolling bearing unit including the inner ring rotating type rolling bearing in which an outer ring is fixed to a housing and in which a shaft directly connected to a motor is fitted into an inner ring, the shaft grounding member includes: a spring plate including an annular portion and an elastic portion extending continuously from an inner peripheral side end portion of the annular portion to a center of the annular portion, the spring plate being made of a thin plate of a conductive material; and a soft conductive member mounted on a surface of the elastic portion on a side facing the rolling bearing. The soft conductive member is configured to abut against an end surface of the shaft. The spring plate includes a plurality of bent portions provided at a portion of the annular portion facing a side surface of the outer ring so as to be bent in an axial direction, the plurality of bent portions being deformed to apply a pressing force to the outer ring.

The invention discloses a dust self-discharging type collecting ring system of a large vertical hydro-generator, and relates to the field of hydro-generator collecting rings. Collector rings are widely applied to products such as power generation equipment, and the existing frequently-applied structures have the phenomena of low matching precision, high temperature, difficulty in discharging abraded carbon powder, easiness in accumulation and easiness in short circuit. The collector ring comprises an upper collector ring, a lower collector ring, an insulating sleeve and a carbon brush, inclined holes are formed in the circumferences of the upper collector ring and the lower collector ring, and carbon powder is driven to be discharged out of the contact parts of the collector rings and the carbon brush through the inclined holes of the upper collector ring and the lower collector ring. According to the invention, carbon powder discharge is facilitated, heat dissipation is facilitated, the temperature of the carbon brush is reduced, and the service life of the carbon brush and the collector ring is prolonged.

A slip ring arrangement according to the invention for an electric machine comprises a first slip ring, a first contact pin which forms an electrically conductive sliding contact with the first slip ring, and a first conductor extending axially from the first slip ring and electrically connected to the first slip ring. The slip ring arrangement further comprises a substantially hollow cylindrical first support element which has a first axial inner surface at a first axial end, forming a first rib extending radially inwards, wherein the first slip ring is arranged on the first axial inner surface. The first conductor is enclosed between a radial inner surface and a radial outer surface of the first support element. The first contact pin is guided axially displaceably within a second support element and can be subjected to force or is subjected to force in a first axial direction.The second support element is arranged within a volume defined radially by the radial inner surface of the first support element. The second support element is rotatably arranged relative to the first support element. The invention further comprises a rotor of a separately excited synchronous machine.

The present application relates to a rotary torch (10). The rotary torch (10) includes: a hollow cylindrical case (47); a hollow cylindrical body (41) rotatably supported by the case (47) in a radially inward of the case (47); a hollow cylindrical wire guide (29) disposed radially inward of the body (41) in a non-rotatable manner, the wire guide (29) configured to receive a filler wire (4) to pass through; an electrode (43) disposed at a distal end of the body (41), the electrode (43) integrally rotatable with the body (41), the electrode (43) extending toward the filler wire (4); and a power supply brush (55) disposed in the case (47).

Methods and systems for an unloading device are provided. In one example, a system includes an unloading device comprising a mounting chassis coupled to a ground, a plurality of arms coupled to the mounting chassis, and an elastic element positioned between the mounting chassis and the plurality of arms. The unloading device is located within the power drive unit.

The application discloses a high-voltage dynamic power transmission system, and relates to the technical field of high-voltage power transmission equipment, which comprises a shell, a stator-side high-voltage brush assembly, a rotor conductive ring, a high-voltage armored cable, a rotary sealing assembly, a double-head conductive piece, a main shaft and a rotor extension shell body. An installation opening is formed in the shell and penetrates the shell along the thickness direction of the shell, and the main shaft penetrates the installation opening. The rotary sealing assembly is arranged on the main shaft at the installation opening and is used for providing rotary support for the main shaft and sealing the installation opening. The rotor conductive ring is fixed on the main shaft in the shell. The stator-side high-voltage brush assembly is installed on the wall surface of the shell, one end of the stator-side high-voltage brush assembly is in sliding contact with the conductive surface of the rotor conductive ring, and the other end of the stator-side high-voltage brush assembly is used for electrically connecting with external equipment. The rotor extension shell body is fixedly connected with the main shaft which extends out of the installation opening. The double-head conductive piece is fixedly arranged on the wall surface of the rotor extension shell body. The application can reduce the failure risk of the rotary sealing assembly, improve the reliability of the rotary sealing assembly and reduce the maintenance cost.

The utility model relates to a brush carrier wiring structure and a motor, and belongs to the technical field of motor manufacturing. The utility model provides a brush carrier wire connecting structure which comprises a body, and the body comprises a first connecting block, a connecting piece, a second connecting block and a locking piece. The first connecting block and the second connecting block are arranged at the two ends of the connecting piece respectively. The first connecting block is provided with a first connecting hole, the pole coil is provided with a second connecting hole, and the first connecting hole and the second connecting hole are connected through a locking piece so that the first connecting block can be fixed to the pole coil. And the second connecting block is in bolted connection with the brush carrier. And the first connecting block and the pole coil are fixed through the locking piece, so that the problem that the brush holder and the pole coil are easily disconnected due to pseudo soldering is solved, and the working efficiency of the motor is improved.

A rotor assembly includes a rotor shaft and a rotor core supported by the rotor shaft and surrounded by a plurality of windings. The rotor assembly also includes a first brush engaging a first slip ring fixed relative to a first distal end of the rotor shaft. The first brush includes one of a first conical projection or a first convex receptacle and the first slip ring includes the other of the first conical projection or the first convex receptacle. A first electrical connection extends between the first slip ring and the plurality of windings. A second brush is configured to engage a second slip ring with the second slip ring fixed relative to the rotor shaft. A second electrical connection extending between the second slip ring and the plurality of windings.

The utility model relates to carbon brush technical field, and disclose a kind of low-wear carbon brush assembly, the inside installation of mounting seat is equipped with carbon brush, the upper and lower sides of mounting seat are fixedly connected with protruding strip, the upper and lower sides of mounting seat are equipped with limiting slot in installation groove, the upper and lower sides of carbon brush are integrally profiled with guide strip;Two telescopic springs in the utility model can support carbon brush and guide strip by baffle, can improve the stability of carbon brush support, prevent the uneven stress of one end of carbon brush, reduce the mechanical wear of carbon brush, to prolong the service life of carbon brush;By extruding the arc protrusion of elastic sheet, make its stress deformation, the one end of pressure elastic sheet is separated from the inside of mounting hole, then pull pressure elastic sheet and drive fixed plate to separate from the inside of mounting seat, then pull connecting wire and drive carbon brush to separate from the inside of mounting seat, then complete the disassembly of carbon brush, simple and quick operation.

The application provides a dustproof insulating gasket for a conductive slip ring and relates to the technical field of conductive slip rings.The conductive slip ring comprises a slip ring channel and ring pieces, the ring pieces are uniformly distributed along the slip ring channel, an insulating gasket assembly is installed on the slip ring channel, the insulating gasket assembly is used for dustproofing the surface of the slip ring channel, an insulating inner ring is fixedly connected with the slip ring channel, the insulating inner ring is arranged between adjacent ring pieces, an insulating outer ring is connected with the insulating inner ring through a connecting piece, the insulating inner ring is used for insulating adjacent ring pieces on the slip ring channel, the insulating outer ring and the insulating inner ring are detachably connected, thereby facilitating independent replacement of the insulating outer ring, only a space for placing a brush wire is left between adjacent insulating outer rings in the transverse direction, brush wire jumping is prevented, the distance between adjacent insulating outer rings is shortened, thereby reducing the exposed space of the slip ring channel, and dust entering the surface of the slip ring channel is effectively reduced.

The present invention discloses a highly conductive split ring of an omnidirectional elastic member. The highly conductive split ring of an omnidirectional elastic member according to the present invention solves the problem of corrosion of peripheral components caused by axial current in high-speed electric motors, which directly affects the operating stability of bearings mounted on the main shaft, thereby affecting the stability of the electric motor under conditions of high rotational speed, high power, and high torque. It also overcomes the state-of-the-art technical challenge of limiting the output of the electric motor, which belongs to the problem of axial current that needs to be resolved quickly, otherwise it may cause a potential safety hazard. The multiple fan-shaped lip edges used in the present invention not only ensure good electrical contact and sufficient contact area with the main shaft, but also move synchronously with the radial or axial movement of the main shaft, demonstrating excellent performance in following the main shaft operation and ensuring good instantaneous electrical contact between the conductive silicone adhesive and the main shaft. [Solution] The split ring comprises an outer frame, a support ring, and a conductive assembly, and the conductive assembly includes a conductive ring, multiple lip edges, a conductive silicone adhesive after it has solidified from a liquid state, and a conductive elastic member that is integrally attached to the conductive silicone adhesive.

The invention relates to a method for determining the contact quality between at least one sliding brush (4, 6) of a brush adjuster (2) and an associated rotor shaft slip ring (8, 10), against which the sliding brush (4, 6) is pressed, in order to externally excite an electric motor rotor provided on the rotor shaft, in accordance with the contact quality such that the slip ring (8, 10) is sufficiently contacted by the sliding brushes (4, 6) for a given excitation current and when the smallest possible contact pressure is applied. In the process, electromagnetic radiation emitted by the assembly consisting of the at least one sliding brush (4, 6) and the associated slip ring (8, 10), said electromagnetic radiation arising as a result of the sliding brush (4, 6) being lifted off the slip ring (8, 10) during an operation of the electric motor, is detected by means of an electrical component with a sufficient inductance in a region of the assembly and used to determine the contact quality. The invention additionally relates to a computer program, to a computer program product, to a system, and to an electric vehicle.

The invention discloses a cable built-in collector ring for inhibiting ablation of a cable buffer layer. The collector ring is coaxially sleeved in a structural cavity between a semi-conductive layer and a metal sheath of a cable terminal; the resistivity of the collector ring is distributed in a gradient mode in the radial direction, the first resistivity of the inner layer area is matched with the resistivity of the semi-conductive layer, the second resistivity of the outer layer area is matched with the resistivity of the metal sheath, and the resistivity of the middle area is sequentially transited from the first resistivity to the second resistivity from inside to outside. The invention further discloses a cable which comprises a semi-conductive layer, a metal sheath and the collector ring, a water-blocking buffer layer is arranged between the semi-conductive layer and the metal sheath, and the collector ring is coaxially arranged between the semi-conductive layer and the metal sheath of the cable terminal in a sleeving mode and located in a structural cavity exposed after the water-blocking buffer layer is peeled off. The device has the advantages of simple structure, simplicity and convenience in installation, capability of inhibiting ablation of the cable buffer layer and the like.

The conductive slip ring structure comprises a first slip ring half shell, a second slip ring half shell and an electric brush, the first slip ring half shell is provided with a first side wall, a second side wall, a first outer wall and a first inner wall, the first outer wall is provided with a first conductive half ring, the first inner wall of the first slip ring half shell is provided with a first arc-shaped recess, and the second slip ring half shell is provided with a second arc-shaped recess. The first arc-shaped concave position penetrates from the first side wall to the second side wall; the second slip ring half shell is provided with a third side wall, a fourth side wall, a second outer wall and a second inner wall, the second outer wall is provided with a second conductive half ring, the second inner wall of the second slip ring half shell is provided with a second arc-shaped concave position, the second arc-shaped concave position penetrates from the third side wall to the fourth side wall, and the second slip ring half shell and the first slip ring half shell can be spliced. The second arc-shaped concave position and the first arc-shaped concave position form a clamping area, and the second conductive semi-ring and the first conductive semi-ring form a conductive ring; the electric brush is conductively connected with the conducting ring. Therefore, disassembly and assembly can be facilitated, maintenance and replacement are facilitated, and the production efficiency is improved.