阅读说明：本技术 一种电力滑环 (Electric slip ring ) 是由 向雨 向光恒 于 2021-08-10 设计创作，主要内容包括：一种电力滑环,涉及电力传输设备与设施,该滑环包括固定端子及滑动端子,所述的固定端子内部嵌入滑动端子且两者相互滑动连接。所述的固定端子包括固定端外筒及固定端子接线架、固定端子外滑筒、固定端子内滑刷、内外滚动轴承,所述的滑动端子包括滑动端法兰盘、滑动端接线架、滑动端外环滑齿筒、内环滑筒。固定端子1和滑动端子2各分成上下两个部分,上部为电力滑动连接部分。这种触点在大功率继电器和接触器上有使用,采用圆周方向多触点环形自适应触点紧密接触技术,保障触点始终与滑筒保持良好接触,多环并联可实现需要的任意大电流通流能力,下端的信号滑环提供双路4线滑动连接,用DB9连接器连接,为控制回路提供信号滑动连接。(The slip ring comprises a fixed terminal and a sliding terminal, wherein the sliding terminal is embedded in the fixed terminal, and the fixed terminal and the sliding terminal are mutually connected in a sliding manner. The fixed terminal comprises a fixed end outer cylinder, a fixed terminal wiring frame, a fixed terminal outer sliding cylinder, a fixed terminal inner sliding brush and an inner and outer rolling bearing, and the sliding terminal comprises a sliding end flange plate, a sliding end wiring frame, a sliding end outer ring sliding tooth cylinder and an inner ring sliding cylinder. The fixed terminal 1 and the slide terminal 2 are each divided into upper and lower portions, and the upper portion is an electric power slide connection portion. The contact is used on a high-power relay and a contactor, the contact is ensured to be always in good contact with a sliding barrel by adopting a circumferential multi-contact annular self-adaptive contact close contact technology, the required large-current through capacity can be realized by multi-ring parallel connection, a signal slip ring at the lower end provides two-way 4-wire sliding connection, and the signal slip ring is connected by a DB9 connector and provides signal sliding connection for a control loop.)

1. An electrical slip ring, characterized by: this sliding ring includes fixed terminal and sliding terminal, the inside embedding sliding terminal of fixed terminal and both mutual sliding connection, fixed terminal include stiff end urceolus and fixed terminal wiring frame, the inside fixed terminal wiring frame that is equipped with of stiff end urceolus, sliding terminal include slip ring flange, wiring frame A, signal slide cartridge B, terminal ring B and terminal ring C, slip ring flange and fixed terminal in the stiff end urceolus pass through the screw connection, be fixed with wiring frame A on the slip ring flange, wiring frame A is connected with signal slide cartridge B, has inserted terminal ring B on the wiring frame A, is equipped with a plurality of electric rings that touch on the terminal ring B, touches electric ring and contact with the stiff end urceolus, wiring frame A on still inserted terminal ring C.

2. The electrical slip ring of claim 1, wherein: the diameter of the terminal ring B is larger than that of the terminal ring C, one end of the terminal ring B is connected with 18 terminals, one end of the terminal ring C is connected with 18 terminals, and the terminal ring B and the terminal ring C are both in contact with the connecting disc.

3. The electrical slip ring of claim 1, wherein: the fixed end outer barrel comprises a shell, a heat dissipation device and a signal sliding barrel A, wherein the heat dissipation device and the signal sliding barrel A are arranged inside the shell, the heat dissipation device is in contact with the signal sliding barrel A, and the heat dissipation device is in contact with the sliding terminal.

4. The electrical slip ring of claim 3, wherein: the heat dissipation device comprises a heat dissipation plate, a connecting pipe, an electrical coupling cylinder, a water connector and a water outlet pipe, wherein the two heat dissipation plates are arranged outside the electrical coupling cylinder, the water connector and the water outlet pipe are respectively connected to the two heat dissipation plates, and the two heat dissipation plates are connected through the connecting pipe.

5. The electrical slip ring of claim 3, wherein: signal slide cartridge A include insulator ring A, signal ring A, insulator ring B, signal ring B, insulator ring C, signal ring C, insulator ring D, signal ring D, insulator ring E and bottom bearing, insulator ring A inside be equipped with signal ring A, insulator ring B inside be equipped with signal ring B, insulator ring C inside be equipped with signal ring C, insulator ring D inside be equipped with signal ring D, insulator ring D has insulator ring E, insulator ring E bottom is equipped with the bottom bearing.

6. The electrical slip ring of claim 1, wherein: the fixed terminal wiring frame comprises a contact terminal, an empty cylinder and a signal sliding cylinder C, wherein the empty cylinder is arranged inside the contact terminal, and the signal sliding cylinder C is further arranged on the empty cylinder.

7. The electrical slip ring of claim 6, wherein: the contact terminal include binding post, wiring dish, electric shock ring, terminal ring A, fin and end cover, the wiring dish on be equipped with binding post, binding post is connected with terminal ring A, is equipped with a plurality of electric shock ring on the terminal ring A, the inside fin that is equipped with of terminal ring A, terminal ring A and end cover connection.

8. The electrical slip ring of claim 1 or 7, wherein: the contact ring comprises contacts and a circular ring, wherein the circular ring is provided with a plurality of contacts, and each contact is uniformly distributed on the circular ring.

9. The electrical slip ring of claim 8, wherein: the contact is composed of three continuous arcs, the left arc and the right arc maintain contact force, the arc in the middle is in contact with the surface of the sliding cylinder, and the width of the contact is 3 mm.

Technical Field

The invention relates to power transmission equipment and facilities, in particular to a power slip ring.

Background

The traditional fan uses the 'twisting cable' to finish power output when the motor deflects when power is transmitted to bottom converter equipment from a generator, the twisting of a power transmission cable is used for responding to power transmission after the motor deflects, the twisting of the cable must be continuously monitored in the deflecting process, and the cable must be automatically untwisted to reset the cable after the twisting exceeds a certain angle. The cable still has a lot of times of twisting in frequent twisting, in the long-term operation of fan, and the cable can receive the injury. To cope with twisting, the cable mass must be high and twisting tends to lead to cable fatigue failure. To cope with twisting, the cable cannot be fixed for long distances and a saddle bridge mechanism must be used to accommodate the suspended cable increasing the twisting angle, thus increasing the cable length. However, the prior art also has the following disadvantages: 1. the cable twisting action is complex to control, and dangerous accidents are easy to happen under extreme conditions; 2. the manufacturing cost is high, in order to ensure that the cable can be twisted, the cable must be suspended for enough length, the suspended cable can only be fixed at the top end, and the fixed point is easy to damage the cable, so that a plurality of strange devices for fixing the cable are developed, but the damage of the outer skin of the cable cannot be prevented, and a great safety operation risk exists; 3. the cable quality requirement is high, and the problems of cable heating and the like are often caused; 4. the installation is complicated, and is with high costs.

Disclosure of Invention

The invention aims to solve the technical problem of an electric slip ring, which can solve the problem of poor reliability caused by cable twisting of the traditional wind power generation equipment; the power transmission cost from the generator to the ground is reduced; the installation is simplified, the cable is prefabricated, delivered along with the tower barrel and fixed on the tower barrel in advance, and the field installation cost is zero.

The invention is realized by the following technical scheme: the utility model provides an electric power slip ring, this sliding ring includes fixed terminal and sliding terminal, the inside embedding sliding terminal of fixed terminal and both mutual sliding connection, fixed terminal include stiff end urceolus and fixed terminal connection frame, the inside fixed terminal connection frame that is equipped with of stiff end urceolus, sliding terminal include slip ring flange, connection frame A, signal slide cartridge B, terminal ring B and terminal ring C, slip ring flange and fixed terminal in the stiff end urceolus pass through the screw connection, be fixed with connection frame A on the slip ring flange, connection frame A is connected with signal slide cartridge B, has inserted terminal ring B on the connection frame A, is equipped with a plurality of electric rings that touch on the terminal ring B, touches electric ring and contact with the stiff end urceolus, connection frame A on still inserted terminal ring C.

The diameter of the terminal ring B is larger than that of the terminal ring C, one end of the terminal ring B is connected with 18 terminals, one end of the terminal ring C is connected with 18 terminals, and the terminal ring B and the terminal ring C are both in contact with the connecting disc.

The fixed end outer barrel comprises a shell, a heat dissipation device and a signal sliding barrel A, wherein the heat dissipation device and the signal sliding barrel A are arranged inside the shell, the heat dissipation device is in contact with the signal sliding barrel A, and the heat dissipation device is in contact with the sliding terminal.

The heat dissipation device comprises a heat dissipation plate, a connecting pipe, an electrical coupling cylinder, a water connector and a water outlet pipe, wherein the two heat dissipation plates are arranged outside the electrical coupling cylinder, the water connector and the water outlet pipe are respectively connected to the two heat dissipation plates, and the two heat dissipation plates are connected through the connecting pipe.

Signal slide cartridge A include insulator ring A, signal ring A, insulator ring B, signal ring B, insulator ring C, signal ring C, insulator ring D, signal ring D, insulator ring E and bottom bearing, insulator ring A inside be equipped with signal ring A, insulator ring B inside be equipped with signal ring B, insulator ring C inside be equipped with signal ring C, insulator ring D inside be equipped with signal ring D, insulator ring D has insulator ring E, insulator ring E bottom is equipped with the bottom bearing.

The fixed terminal wiring frame comprises a contact terminal, an empty cylinder and a signal sliding cylinder C, wherein the empty cylinder is arranged inside the contact terminal, and the signal sliding cylinder C is further arranged on the empty cylinder.

The contact terminal include binding post, wiring dish, electric shock ring, terminal ring A, fin and end cover, the wiring dish on be equipped with binding post, binding post is connected with terminal ring A, is equipped with a plurality of electric shock ring on the terminal ring A, the inside fin that is equipped with of terminal ring A, terminal ring A and end cover connection.

The contact ring comprises contacts and a circular ring, wherein the circular ring is provided with a plurality of contacts, and each contact is uniformly distributed on the circular ring.

The contact is composed of three continuous arcs, the left arc and the right arc maintain contact force, the arc in the middle is in contact with the surface of the sliding cylinder, and the width of the contact is 3 mm.

The invention has the beneficial effects that: the invention adopts a surface contact which is used on a high-power relay and a contactor, adopts the annular self-adaptive contact close contact technology to ensure that the contact is always kept in good contact with a sliding barrel, can realize the required random large current through-flow capacity by multi-ring parallel connection, can realize large current circulation by a thinner cable by multi-terminal input and output parallel connection, can greatly reduce the cost of a transmission cable, and reduces the length of the cable by 20 percent by removing a cable twisting mechanism; the invention also adopts a large-current electric slip ring to solve the problem that the traditional wind driven generator cannot freely yaw, and the traditional generator can continue to yaw only by performing cable untwisting operation after the traditional generator is influenced by a power transmission cable to yaw for 1080 degrees, which not only has high requirements on the quality of the cable and reserves a longer twisted cable, but also causes high cable cost, and most importantly, has great potential safety hazard, and the electric slip ring can reduce the installation cost and greatly improve the reliability.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a schematic view of a fixing terminal according to the present invention;

FIG. 4 is a schematic view of the structure of the outer cylinder of the fixing end of the present invention;

FIG. 5 is a schematic view of a fixed terminal frame according to the present invention;

FIG. 6 is a schematic view of a terminal contact structure according to the present invention;

FIG. 7 is a schematic view of the sliding terminal structure of the present invention;

FIG. 8 is a schematic view of a heat dissipation device according to the present invention;

FIG. 9 is a schematic structural view of a signal slide cylinder A according to the present invention;

fig. 10 is a schematic view of the contact ring structure of the present invention.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

In the description of the present invention, it is to be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.

Further, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

The use of terms such as "upper," "above," "lower," "below," and the like in describing relative spatial positions herein is for the purpose of facilitating description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly

In the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "sleeved," "connected," "penetrating," "plugged," and the like are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to the figures, the slip ring of the present invention comprises a fixed terminal 1 and a sliding terminal 2, wherein the fixed terminal 1 is embedded in the sliding terminal 2 and connected with each other, the sliding and fixing are opposite, when the sliding terminal is fixed, the fixed terminal can slide in the radial direction, when the fixed terminal is fixed, the sliding terminal slides in the radial direction, the device is used for completing the radial sliding (axial rotation) connection of large current, realizing the electric energy input and output (the upper end of the slip ring) of a high-power rotating component, and simultaneously providing the control signal sliding connection (the lower part of the slip ring) for interconnecting the components, and the slip ring can realize that: 1. the 18 binding posts of the fixed terminal and the 18 binding posts of the sliding terminal are in low-resistance and high-current electrical intercommunication, so that high-current (>2000A) sliding interconnection is realized; 2. two paths of four-wire signals are communicated with each other, and a reliable communication link is provided for equipment control.

The fixed terminal 1 comprises a fixed end outer cylinder 101 and a fixed terminal wiring frame 102, the fixed terminal wiring frame 102 is arranged in the fixed end outer cylinder 101, and in order to facilitate heat dissipation of the electric sliding contacts, water-cooling heat dissipation plates are mounted on an outer ring electric sliding cylinder and an inner ring electric sliding gear cylinder of the fixed terminal, so that the contacts are prevented from being seriously heated to cause reliability reduction. The fixed terminal also provides an interface for injecting the conductive liquid into the sliding connection point of the inner ring and the outer ring and a corresponding sealing device. The outer ring sliding cylinder and the inner ring sliding gear cylinder are divided into an upper part and a lower part, the upper part is an electric power sliding connection part, the height of the electric power sliding connection part is designed according to flowing current, the outer ring part is connected with a direct current cathode or an alternating current N pole, the inner ring sliding gear ring is connected with a direct current anode or an alternating current L pole, the design is that the cathode or the N pole is finally connected to a protection ground of a power supply system, the outer ring can shield the interference of the inner ring, 18 cathode wiring terminals (P-) on a wiring frame are directly and physically connected with the inside of the outer ring sliding cylinder, and 18 anode wiring terminals on the wiring frame are directly and physically connected with the inner ring sliding gear cylinder without wiring connection, so that the product assembly is simplified, and the reliability is improved. The external sliding cylinder and the internal sliding gear cylinder at the lower part provide sliding connection of control signals, the fixed terminal is connected with the fixed control signals, the control signals are accessed from a DB socket of the wiring frame, the external sliding cylinder is connected with a group of control signals, the internal sliding gear cylinder provides a group of same control signals (accessed from a DB head of the wiring frame), and the external sliding gear cylinder and the internal sliding gear cylinder are used as backup of the external ring, and the backup design can improve the reliability of a control link. The control signal can provide a plurality of IO ports, the embodiment of the invention provides 4 IO ports, the IO ports and the power terminals are electrically insulated, the DB head to the sliding connection point adopt a lead, the sliding connection of each IO port adopts radial multi-contact surface contact, the contact reliability is high, and the contact resistance is small. The power slip ring comprises two concentric slip rings, which are different from a common slip ring that only has one slip ring, and the two slip rings are mainly used for solving the problem of current capacity required by large-current sliding connection. This can reduce EMI (electromagnetic radiation interference). When three-phase sliding connection is carried out, two rings can be embedded inside the three-phase sliding connection; the power slip ring comprises an upper section and a lower section, the upper section realizes two-pole power sliding connection, and two inner rings can be added to three-phase power connection by using the technology; the lower end realizes 4 paths of signal interconnection through the inner ring and the outer ring respectively, two paths of signals are mutually backed up, and the reliability of signal interconnection is improved. The fixed end outer cylinder is in interference fit with an upper bearing outer ring and a lower bearing outer ring of the outer ring, and the fixed end outer cylinder is fastened on the outer rings of the upper bearing and the lower bearing by screws respectively after the fixed end outer cylinder is matched with the upper bearing outer ring and the lower bearing outer ring, so that IP68 sealing of the outer sliding cylinder is realized, and dustproof and waterproof design is realized;

the sliding terminal 2 comprises a sliding flange plate 501, a wiring frame A502, a signal sliding barrel B503, a terminal ring B504 and a terminal ring C506, the sliding flange plate 501 is connected with the fixed end outer barrel 101 in the fixed terminal 1 through screws, the wiring frame A502 is fixed on the sliding flange plate 501, the wiring frame A502 is connected with the signal sliding barrel B503, the terminal ring B504 is inserted on the wiring frame A502, a plurality of electric contact rings 403 are arranged on the terminal ring B504, the electric contact rings 403 are in contact with the fixed end outer barrel 101, and the terminal ring C506 is further inserted on the wiring frame A502. Is a sliding terminal of a slip ring. The outer 18 binding posts are one pole of a power supply and are connected in parallel in the slip ring, the inner side is the other pole of the power supply and is also connected by 18 terminals, the outer connecting terminal and the inner connecting terminal are respectively connected in a rotating mode through the outer electric slip ring and the inner electric slip ring, the electric safety insulation voltage of the inner side and the outer side is 3000VDC, the current capacity of the slip ring is based on the number of contacts in the slip ring, in the embodiment, 12 contacts are used in each ring, 120 contact rings are connected in parallel, and the current capacity is 4320A. The input and output of the power generation device adopt 18 terminals which are connected in parallel, if an AWG1 wire is adopted, the input and output current of the power generation device reaches 162x 18-2916A, and the current capacity of the power generation device can meet the power transmission requirement of most of current wind power generation devices; the stiff end connection terminal adopts high strength insulating material, provides the electrical insulation with the terminal, and the connection terminal provides 18P-and 18P + wiring position and 2 DB9 connector mounted position, and the terminal is except electrical connection, is used for fixed end inner and outer ring simultaneously, and DB9 connector uses IP68 connector, and the bottom is sealed the packing ring and is realized IP68 and seal. The fixed end wiring frame is in interference fit with the wiring terminal, the fixed end outer barrel and the inner barrel. In order to prevent the deformation of the wiring frame caused by overlarge fastening force of the wiring terminal, an insulating sleeve is designed in the wiring terminal and supports the wiring frame; the upper and lower four bearings of the inner and outer rings are specially designed and used for fixing parts of the fixed end and parts of the sliding end and ensuring that the inner and outer slip rings rotate concentrically; a binding post is extended from the electric sliding barrel on the upper part of the outer sliding barrel, and the walls of the electric sliding barrel and the signal sliding barrel are plated with gold to reduce contact resistance; the outer side of the inner sliding tooth cylinder is connected in parallel by adopting a plurality of tooth rings, each tooth ring generates a plurality of three-peak teeth along the circumferential direction, the middle peak is higher than the two side peaks, the middle peak is used as a contact point which is in rolling contact with the sliding end, the two side peaks buffer the contact point, and the contact point is plated with gold; (ii) a

In order to ensure the reliability of sliding connection, the invention adopts the sliding gear rings with multiple radial contacts connected in parallel, even if sliding eccentricity occurs, partial contacts always keep contact, in order to improve the overcurrent capacity of the contacts, the sliding gear rings are connected in parallel, the signal terminals adopt three rings connected in parallel, the electric transmission terminals can adopt hundreds of sliding gear rings connected in parallel according to the requirements of the through-current capacity, in addition, surface contact contacts are adopted, the contacts of the sliding gear rings and the signal terminals are used on a high-power relay and a contactor, the annular self-adaptive contact tight contact technology is adopted, the contacts are ensured to always keep good contact with a sliding barrel, particularly, the contact surface is gradually increased along with the increase of the service life, and the contact resistance is further reduced. In order to provide the reliability of the electric power contact, in the sliding area of the electric power contact, the sliding contact area of the outer ring between the fixed terminal outer sliding barrel of the outer ring and the sliding terminal outer sliding tooth barrel and the corresponding electric sliding contact area of the inner ring are sealed (by using a fluorinated rubber ring), and the conductive liquid is injected into the area (after the sliding ring is assembled, the conductive liquid is injected through the conductive liquid hole on the fixed terminal and then sealed by using a rubber plug), the sliding connection of the electric power part is sealed by the conductive liquid, the friction force of the sliding contact is reduced, and the contact between air and the contact is isolated.

Moreover, the signal slip ring is integrated, 4 signal paths are respectively provided on the inner layer and the outer layer, and the reliable contact of signals is ensured due to the adoption of the multi-contact ring, and the signal slip ring is real and high in reliability because the signal is not instantaneously disconnected in sliding. The fixed terminal provides the coolant liquid interface of cominging in and going out, and the entry inflow can be followed to the outside, and the export flows out, adopts ripe water piping connection technique, guarantees that the coolant liquid can not appear in long-term the use and reveals.

The fixed end is embedded with the sliding and rolling inner ring bearing and the sliding and rolling outer ring bearing, the upper end and the lower end of the fixed end are respectively provided with two ends, the sliding and rolling between the fixed end and the sliding end can be ensured to concentrically rotate no matter the upper end and the lower end or the inner ring and the outer ring are provided with basic guarantee for reliably realizing sliding connection.

The electric slip ring provides a reliable connection scheme for wind driven generators and other equipment needing sliding power transmission, in the wind power generation equipment, the length of a transmission cable from a top cabin to a bottom cabin of the generator can be reduced by 20 percent by using the electric slip ring, meanwhile, a cable releasing mechanism of the generator is removed, and the cost of the electric slip ring is reduced by 10 ten thousand.

The middle sliding brush and the sliding barrel provide sliding connection of the outer ring and the inner ring, the sliding brush is in contact with the outer ring sliding barrel, the sliding barrel is in contact with the inner ring sliding brush, the inner sliding brush completes output of the power electrode anode and connection of the second group of signal terminals, the connection is similar to that of the outer ring sliding drum, a heat dissipation loop needs to be arranged, and the heat dissipation design method is the same as that of the outer drum. The sliding brush is connected to an external sliding drum terminal after being arranged and wired. The inner sliding brush is inserted into the inner ring bearing inner sleeve from the upper part after the inner sliding brush is manufactured and is fixed on the fixed end of the outer shell at the top end.

The diameter of the terminal ring B504 is larger than that of the terminal ring C506, one end of the terminal ring B504 is connected with 18 terminals, one end of the terminal ring C506 is connected with 18 terminals, and the terminal ring B504 and the terminal ring C506 are both in contact with the connecting disc 507.

The fixed end outer cylinder 101 comprises a shell 301, a heat dissipation device 302 and a signal sliding cylinder A303, wherein the heat dissipation device 302 and the signal sliding cylinder A303 are arranged inside the shell 301, the heat dissipation device 302 is in contact with the signal sliding cylinder A303, and the heat dissipation device 302 is in contact with the sliding terminal 2.

The heat dissipation device 302 comprises a heat dissipation plate 601, a connection pipe 602, an electrical coupling cylinder 603, a water connector 604 and a water outlet pipe 605, wherein two heat dissipation plates 601 are arranged outside the electrical coupling cylinder 603, the two heat dissipation plates 601 are respectively connected with the water connector 604 and the water outlet pipe 605, and the two heat dissipation plates 601 are connected through the connection pipe 602. The main body of the outer ring electric sliding cylinder is an electric coupling cylinder 603, surface finish treatment is carried out in the cylinder, an anti-oxidation, wear-resistant and low-resistance coating is electroplated on the cylinder, conductive liquid sealing rings are additionally arranged at two ends of the cylinder, the sealing rings are made of wear-resistant rubber, a sealing cavity is formed between the outer sliding cylinder and the middle ring sliding brush, and conductive liquid is filled in the sealing cavity to enable the electric contact surface of the sliding cylinder to be in a closed state, so that high-reliability conductivity is kept; after the installation of the slide cylinder is finished, the conductive liquid is injected in vacuum after a pressure test, and the interior of the slide cylinder is ensured to be in a good conductive environment. The binding post directly guides the sliding barrel current into the binding post, and the heating of the sliding barrel is reduced. The outside of the sliding cylinder is connected with a heat dissipation plate through a heat conduction pad, the surface of the sliding cylinder is coated with heat conduction glue before the heat conduction pad is installed, the heat conduction pad is adhered to the outer ring of the sliding cylinder, then the surface of the sliding cylinder is brushed with the heat conduction glue, and the heat dissipation plate is installed; the heat dissipation plate is composed of a left plate and a right plate and is made of aluminum materials with good heat dissipation performance, 8 heat dissipation water channels are milled or die-cast inside the heat dissipation plate, heat dissipation water flows in from one side, and flows out from one side, the top end of a water pipe is tightly pressed through an end cover to form a water loop, the two plates are connected through a connecting pipe, insulating rings at the upper end and the lower end provide a pressing inclined plane, the heat dissipation plate is tightly pressed on a heat dissipation pad through screw fastening at the two ends, and good heat conduction performance is kept; the screw hole at the outer side of the bearing is used for fastening a slip ring shell, the through hole at the outer ring of the bearing is used for penetrating through a binding post, and conducting liquid is injected, water is circulated, and a signal cable is arranged. The countersunk head screw hole is used for screwing a screw to the upper insulating ring; 18 phi 10 holes are used to fix 18P-posts, and a square hole is used to fix DB 9. And 10 phi 3.5 holes are used for fixing the terminal plate on the bearing outer sleeve, and a counter bore is needed for 10 holes, so that a fixing screw cannot be exposed. A water-cooling heat dissipation plate is added on the outer side of the electric sliding cylinder, and a heat conduction insulating pad is used for realizing the insulation between the water-cooling plate and the electric sliding cylinder; the water-cooling heat dissipation plate is added on the inner side of the electric sliding cylinder, and the heat conduction insulating pad is used for realizing the insulation between the water-cooling plate and the electric sliding gear cylinder; the inner and outer ring electric power sliding parts are subjected to rolling sealing treatment up and down, conductive liquid can be injected to improve the reliability of the sliding contact, and the conductive liquid is provided with an injection hole and a sealing head; the sliding end flange plate is sealed with the inner ring and the outer ring of the lower bearing through a sealing rubber ring to realize IP68 sealing;

the signal slide cylinder A303 comprises an insulating ring A701, a signal ring A702, an insulating ring B703, a signal ring B704, an insulating ring C705, a signal ring C706, an insulating ring D707, a signal ring D708, an insulating ring E709 and a bottom bearing 710, wherein the signal ring A702 is arranged in the insulating ring A701, the signal ring B704 is arranged in the insulating ring B703, the signal ring C706 is arranged in the insulating ring C705, the signal ring D708 is arranged in the insulating ring D707, the insulating ring D708 is provided with the insulating ring E709, and the bottom bearing 710 is arranged at the bottom of the insulating ring E709. The external signal sliding cylinder provides connection of a group of communication signals of the fixed ring, and in order to reduce interference of signals, the sliding ring provides isolation signals at the upper end and the lower end, wherein the isolation signals are represented as G1 and G2 and are connected with a DB shielding wire when in wiring; the outer radius of the upper outer bearing is 195, the radius of the bearing inner ring is 134mm, the bearing outer sleeve is fixed on the shell, the outer sleeve needs to leave a wiring space, the diameter of 20 round holes with the diameter of 28 in the lower drawing is 30, the thickness of the bearing outer ring is 147, the diameter of the roller is 5, the slotting depth of the bearing is 1, the bearing inner sleeve is slightly thinner than the outer sleeve, the thickness of the bearing inner sleeve is 28, and after the outer sleeve is fixed, the inner shaft does not move under the obstacle. The upper outer shaft sleeve is one of the supporting centers of the slip ring, and the rolling precision of the upper outer shaft sleeve is controlled within 0.1 mm. The sliding-end junction block provides: 1. the 18P-wiring terminals and the 18P + wiring terminals are respectively connected to the sliding end electric power outer sliding tooth cylinder and the sliding end electric power inner sliding cylinder; 2. and the two DB9 wiring terminals are respectively connected to the 4-way outer sliding-tooth ring and the 4-way inner sliding ring of the signal sliding ring at the lower end of the sliding end. The wire frame provides mechanical fixation and electrical insulation of the sliding end outer sliding tooth cylinder and the sliding end inner sliding cylinder

The fixed terminal wiring frame 102 comprises a contact terminal 201, an empty cylinder 202 and a signal sliding cylinder C203, wherein the empty cylinder 202 is arranged in the contact terminal 201, and the signal sliding cylinder C203 is further arranged on the empty cylinder 202. The shell comprises an inner metal cylinder, an outer metal cylinder, an upper end cover and a lower end cover, the cylinder is used for fixing the whole slip ring, the guarantee keeps the inner sliding mechanism and the outer sliding mechanism to rotate concentrically under the condition of external tension, the tight contact of sliding contacts is ensured, the upper end cover and the lower end cover are used for connecting a power line and a signal line, the fixed end provides a water-cooling circulating joint, the water-cooling circulating joint is led out from the upper end cover, the right side of the inner cylinder is connected with an inner side sliding brush and a heat dissipation disc of the electric slip ring, the left side is connected with a signal sliding brush, the reinforcing effect of an inner side fixing part is achieved, two ends are respectively connected to inner rings of corresponding bearings, the slip ring shell is used for fixing an outer sliding cylinder of the slip ring, an electric slip ring is fixed on the upper portion, a signal slip ring is fixed on the lower portion, and a fixing flange is provided for fixing the slip ring to related components. The sliding cylinder is fastened to the upper bearing fixing ring and the lower bearing fixing ring through screws, and the outer ring of the bearing is prevented from being eccentric under the action of external force. The upper end of the sliding end external gear cylinder and the upper end of the internal sliding cylinder are fixed through the upper end head of the sliding cylinder made of insulating materials to realize mutual electrical isolation and are inserted into the upper end inner ring bearing inner ring in an interference fit manner, so that the upper end of the sliding end can be ensured to concentrically slide; the sliding end outer gear cylinder is divided into an upper end electric sliding gear ring and a lower end signal sliding gear ring, the upper end electric sliding gear ring adopts multi-ring parallel connection to improve the through-current capacity, and the lower end signal sliding gear ring adopts multi-ring parallel connection to improve the transient interruption resistance of signal connection. The slip ring adopts the features claimed in claim 10; the upper end electric slip ring and the lower end signal slip ring are mutually electrically insulated and are realized by adding an electric insulation sheet, the lower end signal ring can provide multi-path signal connection according to the requirement, and the outer ring and the inner ring of the embodiment of the patent respectively provide 4 paths of electric connection;

the contact terminal 201 comprises a wiring terminal 401, a wiring disc 402, electric shock rings 403, a terminal ring A404, cooling fins 405 and an end cover, wherein the wiring disc 402 is provided with the wiring terminal 401, the wiring terminal 401 is connected with the terminal ring A404, the terminal ring A404 is provided with a plurality of electric shock rings 403, the cooling fins 405 are arranged inside the terminal ring A404, and the terminal ring A404 is connected with the end cover 406.

The contact ring 403 includes a contact 801 and a ring 802, wherein the ring 802 is provided with a plurality of contacts 801, and each contact 801 is uniformly distributed on the ring 802.

The contact 801 is composed of three continuous arcs, the left arc and the right arc maintain contact force, the arc in the middle is in contact with the surface of the sliding cylinder, and the width of the contact is 3 mm. The shape and the structure of the sliding contact are key points influencing the electrical contact characteristics, in the design of the sliding cylinder contact, the sliding cylinder contact adopts surface contact, the surface contact has strong through-current capacity, the left arc and the right arc maintain contact force, the middle convex surface is in contact with the concave surface of the sliding cylinder, and the salient points form contact arc surfaces to form surface contact after a period of friction. The width of these contacts is chosen to be 3mm, ensuring a large contact area. The contact can form a contact ring uniformly on the periphery of the circular sliding barrel, the contact ring is fixed on the cylinder at one point, even if the axis moves slightly, the contact can be kept in close contact with the sliding barrel in a self-adaptive mode, in order to provide high current capacity, the annular contact can be further spread along the axial direction of the sliding barrel, the current capacity of one contact is 3A, the number of the upper rings is 12, the number of the upper rings is 120, the current capacity can reach 120x12x3 which is 4320A, the measures for increasing the reliability of the contact comprise that an electric part sealing cavity is filled with conductive liquid, and heat dissipation water reduces the temperature of the sliding ring. The contact can be processed by welding a single ring on a cylindrical surface, which can lead to higher assembly cost, but has stronger adaptability to the axial deviation, and in addition, the contact can be welded after being formed by a whole piece in a stamping mode and can be used when the axial deviation is not large.

Inside and outside two sliding rings realize the electrical sliding connection of stiff end and slip end, slip electrical contact adopts the outside ring, inside slip ring, it is a part of fixing on the drum outside behind a plurality of three crest elastic contact of stretching on the ring to slip ring, three crest elastic contact, electric contact is realized to the middle peak, the both sides crest provides elastic buffer, a encircles and has a plurality of contacts, 12 contacts have been adopted to the embodiment, even the eccentric rotation takes place for the multicontact, also can guarantee to have contact and outside ring contact. The inner side of the inner side sliding tooth and the inner side of the outer side sliding ring are in internally tangent contact with the sliding ring, during operation, the inner side tooth and the outer side inner circle rub, the initial point contact is surface contact, the contact resistance is reduced, and the contact performance is improved. Compared with the traditional slip ring, the contact performance is greatly optimized, the traditional slip ring has the advantages that the inner ring is the slip drum, the outer ring is the linear sliding wire, the contact is the circumscribed contact of the sliding wire and a circle, the contact is always the point contact, the linear contact can be realized after the running-in, and the connection is broken instantly once the eccentric motion occurs.

The water cooling plates are connected through water pipes and provide inlet and outlet ports connected with external circulating water.

The sliding gear ring is formed by adopting a sheet metal process and is welded to the outer side of the circular ring or the cylinder through a welding process.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.