2600 results about "Slip ring" patented technology

The invention relates to the technical field of semiconductor chemical mechanical polishing, in particular to a pressure-adjustable double-frequency ultrasonic-assisted semiconductor chemical mechanical polishing device which comprises a rotary table, and a tray, a lower vibration plate, an upper vibration plate, a magnetic sheet and a polishing pad are sequentially stacked and fixed to the upper surface of a table plate of the rotary table from bottom to top. A piezoelectric ceramic piece is fixed to the middle of the lower surface of the upper vibration plate, a retaining sleeve is eccentrically placed on the upper surface of the polishing pad, a threaded sleeve is in threaded connection with the upper end of the outer side face of the retaining sleeve, a damping spring is fixed to the outer top face of the threaded sleeve, a supporting piece is fixed to the upper end of the damping spring, and an inner ring of a second electric sliding ring is fixed to the upper surface of the supporting piece. A transmission shaft is fixedly assembled in an inner ring of the second electric slip ring, a clamping sleeve is fixed to the lower end of the transmission shaft, and an ultrasonic vibrator is fixedly assembled in the clamping sleeve. The method solves the problems that an existing semiconductor chemical mechanical polishing technology is low in polishing speed, poor in surface quality after polishing and low in polishing qualification rate, and is suitable for semiconductor chemical mechanical polishing.

A retractable slip ring transmission mechanism is disclosed, including a housing, a connecting wire, a telescopic component, and a transmitting component. The connecting wire is wrapped around the telescopic component, and the telescopic component is rotatably provided in the housing. The telescopic component includes a first fixed part, an elastic part and a second fixed part. The second fixed part is provided with a holding compartment on one side for placing the elastic part, and the holding compartment is provided with an opening. One end of the elastic part is provided on the outside of the holding compartment, and the other end of the elastic part is coiled within the holding compartment through the opening. Through improvement of the transmitting component, the structure is optimized, which not only can reduce the production process and lower the production cost, but also can increase the power transmission of the product.

The invention discloses a high-precision water pump pressure controller which comprises a pump box, a centrifugal impeller and an adjusting ring set. A bearing frame is arranged on one side of the pump box, a vortex tube and a lining plate are arranged on the surface of the pump box, a rotating speed sensor and a flow speed sensor are arranged on the inner side of the bearing frame and the inner side of the vortex tube respectively, a pressure sensor is arranged on the lining plate, and the output end of the sensor is electrically connected to a data processing module. The centrifugal impeller comprises a wheel seat, a sliding ring, centrifugal blades and a synchronous gear ring, and the centrifugal blades are meshed with a worm gear rack of the synchronous gear ring through transmission tooth grooves. The adjusting ring set comprises a sliding rod, a joint ring and a hand rotating ring and is used for controlling the synchronous gear ring to rotate so as to drive the centrifugal blades to deflect to adjust the exposed area of the centrifugal blades, and therefore dynamic adjustment of pressure output is achieved. The system can realize real-time monitoring and fusion analysis of parameters such as rotating speed, flow velocity and pressure, has the advantages of fast response, high adjustment precision, strong system stability and the like, and is suitable for a precise fluid conveying system.

The invention discloses a system for lowering and recovering a hydraulic pipe of an underwater blowout preventer, which comprises a winch drum, a driving assembly and a bearing seat are respectively arranged on shafts at two ends of the winch drum, the driving assembly is used for driving the winch drum to rotate, and the bearing seat is used for supporting the winch drum; a replaceable chain wheel and a hydraulic slip ring are sequentially mounted on the projecting shaft on the other side of the bearing seat, and the replaceable chain wheel is connected with a cable arrangement device through a chain; a hydraulic pipe of the underwater blowout preventer is led into the winch roller through the hydraulic sliding ring, then led to the cable arrangement device through the winch roller and finally led to the underwater blowout preventer through the cable arrangement device, and the cable arrangement device is used for enabling the hydraulic pipe to be arranged in order along the winch roller. The driving assembly is connected with a pneumatic control system which is used for controlling the driving assembly to drive the winch drum. According to the system, hydraulic pipes with different diameters can be automatically collected and released, the heat dissipation effect is good in the collecting and releasing process, and serious heating of the hydraulic pipes cannot be caused.

The invention discloses a face gear planetary transmission system dynamic uniform load test platform and test method, and belongs to the field of gear transmission, and the test platform comprises a rack, a drive motor, a step-up gear box, a face gear planetary transmission system, a magnetic powder brake, a torque sensor, a slip ring, a stress strain test system and the like. The face gear planetary transmission system comprises an input face gear, a planet wheel, a planet carrier, a fixed face gear and the like. According to the dynamic uniform load test, stress values at the tooth root of the face gear and the tooth root of the planetary gear are measured mainly through strain gauges, and the corresponding relation between the tooth root stress and the meshing force at the gear meshing point is obtained through finite element simulation. And calculating the dynamic uniform load coefficient according to the dynamic meshing force root-mean-square values and the average values obtained at the tooth roots of the face gear and the planetary gear. By testing and analyzing the dynamic uniform load coefficient, the load distribution characteristic of the face gear planetary transmission system can be accurately revealed, a scientific basis is provided for structural parameter optimization, meshing performance improvement and reliability design of the face gear planetary transmission system, and then accurate and high-performance design of the transmission system is achieved.

A lockable differential assembly includes a lock plate that is rotatable about a rotational axis. The differential assembly also includes actuator assembly having a stator and an armature, the actuator assembly being switchable between energized and de-energized states. A radial alignment of the stator is provided based on a piloting feature provided at an outer diameter of the stator housing. A slip ring assembly configured to axially translate based on the locked state or the unlocked state of the differential assembly is provided, including a slip ring that interfaces with the armature at a slip surface, and one or more pins rotationally coupling the slip ring to the lock plate. The slip ring assembly is configured to transmit an axial locking force and an axial return force between the actuator assembly and the lock plate.

The invention discloses an indoor research and development test platform for a multi-rotor unmanned aerial vehicle, and belongs to the technical field of unmanned aerial vehicle testing, the indoor research and development test platform comprises a test bench, a main control unit is arranged on the test bench, the main control unit is provided with a flight path resolving algorithm, and the test bench comprises a rectangular cubic frame. An annular outer ring is arranged in the rectangular cubic frame in a connected mode through a three-degree-of-freedom rotating shaft connecting piece and a frame body connecting plate, and an annular middle ring is arranged in the annular outer ring in a connected mode through a three-degree-of-freedom rotating shaft connecting piece and a ring connecting piece. The interior of the annular middle ring is connected with an annular inner ring and an annular outer ring which serve as unmanned aerial vehicle connecting plates through three-degree-of-freedom rotating shaft connecting pieces and fixing grooves, magnetic encoders are arranged on the middle ring and the inner ring, and meanwhile the cubic frame and the outer ring, the outer ring and the middle ring and the middle ring and the inner ring are connected through conductive sliding rings; according to the invention, an indoor unmanned aerial vehicle testing environment which is safe, reliable, accurate in data, simple to operate, friendly in interface, visual and efficient can be provided for users.

The invention discloses a mining small-sized anti-vibration trepanning directional measurement device and method. The mining small-sized anti-vibration trepanning directional measurement device comprises a battery module, a measurement module, a vibration reduction module, a display module, a power switch and a charging interface, the measurement module comprises an MEMS gyroscope, an MEMS accelerometer, a conductive slip ring, a servo mechanism, an IMU module, a main control board, a motor control board and an external interface connector. Based on the high-precision small-size MEMS gyroscope, the MEMS accelerometer and the integrated small IMU, the equipment size is reduced, the cost is reduced, and the power consumption of the whole machine is reduced; through a four-position north-seeking method, the measurement time is shortened, and high-precision autonomous orientation is realized; based on an integrated small IMU, the tapping direction is updated in real time through quaternion calculation, and dynamic tracking measurement is achieved in the drilling machine adjusting process; according to the vibration reduction module and the vibration reduction method, the vibration resistance problem of an MEMS device is solved, the data quality of an MEMS gyroscope and an MEMS accelerometer is improved, vibration reduction filtering in the tracking process is achieved, and the equipment orientation precision is improved.

The invention discloses a self-adaptive cutter system for brake disc machining. The self-adaptive cutter system comprises a cutter handle, a cutter disc, a cutting blade, a suspension sleeve, an electromagnet and a control system. The permanent magnet is embedded in the circular truncated cone section of the cutter handle, the suspension sleeve is circumferentially fixed to the cutter head through the flat key, the flat key is pasted with the strain gauge to detect cutting force in real time, and the electromagnet and the permanent magnet are oppositely arranged in the radial direction to form magnetic suspension supporting. And the control system adjusts the current of the electromagnet according to the strain signal, dynamically adjusts the radial rigidity and the suspension position of the cutterhead, and realizes axial-radial decoupling support in combination with the thrust bearing. In a preferable embodiment, the cutting blade realizes micron-order cutting depth adjustment through a piezoelectric ceramic driving gasket, the service life of the cutter is prolonged due to the alternative opening design of a cutter head mounting boss, and the problem of winding of a rotating lead is solved by a conductive slip ring assembly. Working conditions such as sand holes and hardness sudden change can be responded in real time, broadband vibration is restrained, the machining precision is improved, the service life of the cutter is prolonged, and the method is suitable for high-precision brake disc machining.

The invention relates to a bending moment-torque composite loading device for testing the load capacity of a steering engine, and belongs to the technical field of ammunition weapon system testing. In the device, the pressure head, the pressurizing rod and the composite loading slip ring synchronously rotate along with the rotation of the rudder wing, so that the applied pressure can be ensured to be always perpendicular to the rudder surface and is closer to the real wind resistance working condition during flight. The bending moment output device and the torque output device are coupled together through the composite loading slip ring, so that the bending moment and the torque can be loaded at the same time and are closer to the actual flight condition.

The invention discloses an anti-interference system for a slip ring communication technology, and belongs to the technical field of communication. Aiming at the problems of electromagnetic interference, mechanical vibration and unstable contact of monocrystalline silicon furnace equipment, a collaborative solution is provided. The system comprises a conductive slip ring assembly, a dynamic shielding module, an asymmetric differential transmission module, an intelligent filtering module, an environment sensing module and a contact impedance compensation module, and real-time cooperative control is realized through a bus controller. The dynamic shielding module adopts a liquid metal micro-channel layer and a piezoelectric driving layer, the shielding density is dynamically reconstructed according to the electromagnetic interference frequency band and the vibration intensity, and broadband noise is suppressed; the asymmetric differential transmission eliminates common-mode interference through dynamic phase compensation; the intelligent filtering module adaptively adjusts parameters of a band elimination filter based on a deep learning model, and accurately suppresses time-varying interference; the carbon nanotube composite electric brush stabilizes contact impedance through a pressure feedback mechanism. The system is obviously superior to a traditional static shielding and fixed filtering scheme, and reliable communication requirements are guaranteed.

The invention relates to a 3D printing device with a dispensing needle head capable of rotating by 360 degrees without limitation and a printing head, and solves the technical problems that in the printing process of existing equipment for carrying out multi-material 3D printing on fibers and glue solutions, electric wires and air pipes are likely to be twisted or wound, and rotation by 360 degrees or above cannot be achieved. The 3D printer comprises an X-axis direction linear module, a Y-axis direction linear module, a Z-axis direction linear module, a platform and a printing head, the printing head comprises a vertical supporting plate, a fixing plate, a wire feeding device connecting plate, a rotating cylinder connecting plate, a pneumoelectric slip ring support, a rotating arm, a wire feeding device, a rotating arm rotation driving motor, a pneumoelectric slip ring, a pipeline, a pipeline fixing plate, an outer cylinder, a connecting sleeve, an upper bearing, a lower bearing, a driving gear, a driven gear, a fiber output needle and a dispensing needle connecting arm rotation driving motor. The device comprises a small synchronous pulley, a synchronous belt, a large synchronous pulley, a dispensing needle connecting arm, a dispensing needle, a rotary hollow shaft, a glue tube and a glue injection cylinder. The method is widely applied to the technical field of multi-material 3D printing.

The invention belongs to the technical field of transformer heat dissipation, and particularly relates to a power transformer heat dissipation device with an alarm function, which comprises a protection assembly, an adjusting device is mounted in an inner cavity on one side of the protection assembly, a heat dissipation assembly is mounted on the adjusting device, and the adjusting device can drive the heat dissipation assembly to slide up and down in the height direction of the protection assembly. The heat dissipation assembly can slide up and down in the shell through cooperation of a linear motor sliding rail and a linear sliding block, a corrugated pipe is arranged on the heat dissipation assembly in a communicating mode, and the exhaust end of the corrugated pipe is movably arranged in a hole formed in the intersection position of sliding holes formed in the longitudinal swing plate and the transverse swing plate in a penetrating mode. The multiple sections of meshing teeth arranged on the vertical plate are matched with the gear to drive the exhaust end of the corrugated pipe to swing up and down, meanwhile, the sliding ring arranged on the insulation guide rod in a sleeving mode is matched with the linkage rod to drive the exhaust end of the corrugated pipe to swing left and right, cold air is evenly dispersed to all positions of the shell, and it is ensured that electric appliance elements in the shell are evenly cooled.

The invention discloses a yaw collecting ring temperature intelligent control system, method and device, a medium and a product, and relates to the field of wind power generation, and the method comprises a temperature collection unit which is used for collecting temperature information of the surface of a collecting ring in real time; the temperature characteristic analysis unit is used for processing the temperature information to obtain a multi-dimensional temperature characteristic value; the data management unit is used for collecting multi-dimensional temperature characteristic values to construct a historical database; the temperature prediction and abnormality diagnosis unit is used for obtaining a temperature prediction result and an abnormality judgment result based on historical data in the historical database and the real-time multi-dimensional temperature characteristic value; the temperature control unit is used for adjusting the working temperature of the collecting ring on the basis of the real-time temperature information when the temperature prediction result exceeds a preset safety threshold value or the abnormity judgment result shows an abnormal condition; according to the method and the device, the crossing from passive control to active prediction can be realized, so that the problem that predictive maintenance is difficult to realize in the traditional technology is effectively solved.

The invention relates to a slip ring seal assembly, which is configured for sealing isolation on a rotating component (22), comprising: a slip ring seal (2) having a rotating slip ring (3) with a sliding surface (3a) and a stationary slip ring (4) with a sliding surface (4a), the rotating slip ring and the stationary slip ring defining a sealing gap (5) between the sliding surfaces (3a, 4a), wherein the rotating slip ring (3) and the stationary slip ring (4) are made of an electrically conductive material, and wherein the rotating slip ring (3) is electrically connected to the rotating member (22); and a monitoring device (6) having an electrical circuit (7), a measuring unit (60) and an evaluation unit (61), the electrical circuit (7) comprising a first cable (71) electrically connecting the stationary slip ring (4) to the voltage source (70), a second cable (72) electrically connecting the rotating component (22) to the voltage source (70), and a capacitor (73), the capacitor (73) being configured as a plate capacitor, the plate capacitor being formed by the rotating slip ring (3) and the stationary slip ring (4), the measuring unit (60) being configured to measure the rotating component (22), and the evaluation unit (61) being configured to evaluate the rotating component (22). Wherein the measuring unit (60) is designed to detect a change in an electrical parameter of the circuit (7), and wherein the evaluation unit (61) is designed to evaluate the electrical parameter detected by the measuring unit (60).

A slip ring, a sealing assembly, a stator, an electric motor, an electric assembly, and a vehicle. The slip ring is provided with a first cavity and a second cavity which are axially disposed spaced apart from each other; and the slip ring comprises a partition plate for separating the first cavity and the second cavity, wherein a first communication port that connects the first cavity and the second cavity is formed in the partition plate and used for guiding a cooling liquid in the second cavity into the first cavity, and the first cavity is used for accommodating windings of an electric motor.

The invention relates to a slip ring wireless transmission structure applied to X-ray tomography equipment, which comprises a transmitting antenna and a receiving antenna, the transmitting antenna is composed of a transmitting transmission line and a transmitting adapter plate, the transmitting antenna is arranged on the radial outer side surface of a slip ring, and the receiving antenna is fixed on an equipment rack. The structures of the matching end of the transmitting antenna, the transmitting conversion plate and the receiving antenna are optimally designed, and the microstrip line with a periodic structure is used in the transmitting transmission line, so that compared with the wireless transmission structure of the existing equipment, the near-field coupling efficiency is improved, the return loss of the system is effectively improved, the signal-to-noise ratio is reduced, and the transmission efficiency is improved. Therefore, the transmission stability and reliability are effectively improved, and the use requirements of CT equipment can be better met.

The invention discloses a non-contact multi-channel photoelectric device slip ring, and relates to the technical field of slip rings, the non-contact multi-channel photoelectric device slip ring comprises a slip ring stator and a slip ring rotor which are not in contact with each other, and through the specific design of a multi-channel photoelectric device, the multi-channel photoelectric device is set as an outer ring channel and an inner ring channel; the distance between the slip ring stator and the slip ring rotor is determined according to the included angle formed by the light of the laser transmitter, so that the laser receiver can stably receive laser signals, and the inner ring passage and the outer ring passage can be ensured not to interfere with each other; the slip ring stator and the slip ring rotor are not in contact, so that the service life of the slip ring can be prolonged, transmission signal damage caused by abrasion is avoided, and the stability of signal transmission is ensured; the slip ring rotor and the slip ring stator are completely identical in overall structure, so that the production process is simplified, and batch production is facilitated.

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 discloses an azimuth gamma testing device and application, and belongs to the technical field of oil and gas logging equipment, the testing device comprises a PC, a rotating table, a rotating table motor, a motor driver, a rotating speed operator, a conductive slip ring and a stabilized voltage supply, the rotating table is sleeved with a rotating disc, and the rotating disc is fixedly connected with a laser; a dial is fixedly connected to the outer circumference of the rotating disc, one end of the rotating table is connected with the rotating table motor, the other end of the rotating table is connected with the conductive slip ring, the conductive slip ring is electrically connected with the azimuth gamma instrument to be measured, the azimuth gamma instrument to be measured is electrically connected with the stabilized voltage supply and the PC, and the rotating speed operator is electrically connected with the motor driver. The motor driver is connected with the rotary table motor, a photoelectric sensor is fixedly connected to the rotary table, and the photoelectric sensor is electrically connected with the azimuth gamma instrument to be detected. According to the invention, double evaluation of the azimuth measurement precision and the pulse counting time correctness of the azimuth gamma instrument can be accurately checked.

The utility model discloses a central lifting rod anti-falling device of a wheel stacking excircle lifting appliance. The central lifting rod anti-falling device comprises a lifting ring, an anti-unhooking door frame, a lifting rod seat, a retractable lifting hook, a central lifting rod and a lifting hook, the upper ends of the lifting ring and the retractable lifting hook are movably arranged at the upper and lower ends of the suspender seat respectively; the suspender seat is vertically provided with a through hole and sleeves the outer side of the central suspender; the upper end of the central suspender is provided with an external thread, and the lower part of the rod body is sequentially sleeved with a conical sleeve, a slip ring and a transverse framework, and the lower end is provided with a cylinder through a bottom nut; the lower end of the retractable hook is movably connected with the bottom of the conical sleeve; the top of the mousing-hook door frame is fixedly welded to the top end of the center hanging rod, and the two sides of the mousing-hook door frame are fixedly welded to the fixing nuts respectively. The transverse framework is in a trifurcate shape, three outer ends of the transverse framework are movably connected with lifting hooks respectively, and the bottom end of each lifting hook is movably connected with a clamping plate respectively; and pull rods are movably arranged between the outer side of the cylinder and the three lifting hooks respectively. According to the utility model, the problem that the center lifting rod of the existing large wheel stacking excircle lifting appliance falls off can be effectively solved.

The conductive slip ring with the self-lubricating structure comprises a slip ring body, the outer side of the slip ring body is coated with a self-lubricating coating, the two sides of the slip ring body are connected with the inner sides of correspondingly arranged positioning bearings through first insulating sleeves, and meanwhile the outer sides of the two positioning bearings are connected with the two sides of the interior of a protective shell. The interior of the slip ring body is connected with a main shaft through a second insulating sleeve, one end of the main shaft penetrates through one side of the slip ring body and extends to the outer side of one end of the protective shell, and an electric brush mechanism is arranged in the middle of the upper end of the protective shell and comprises a sealing seat, a positioning block, a supporting adjusting assembly and an electric brush assembly. A self-lubricating assembly is arranged in the middle of the lower end of the protective shell. According to the conductive slip ring with the self-lubricating structure, the self-lubricating coating is arranged, so that in the relative movement process of the electric brush head and the slip ring body, a solid lubricant is continuously released, a layer of ultra-thin lubricating film is formed between the electric brush head and the slip ring body, the friction coefficient is effectively reduced, abrasion is reduced, and the service life of the conductive slip ring is prolonged.

The utility model provides a concrete spreader, which relates to the technical field of building construction machinery and is characterized in that two arc-shaped track rods are symmetrically welded among the top ends of four vertical positioning shafts which are adjacent in pairs; two limiting plates are symmetrically welded and sleeved on the arc-shaped track rod, two square sliding sleeves are symmetrically and slidably mounted on the part, positioned between the two limiting plates, of the arc-shaped track rod, and a spring of which the head end and the tail end are respectively propped against and contacted with the two square sliding sleeves is sleeved on the arc-shaped track rod; two thin steel wire pull ropes which are arranged in an X-shaped staggered mode are connected between the two sliding rings close to the arc-shaped rail rod and the two square sliding sleeves on the arc-shaped rail rod. The four driving handle rods which are adjacent in pairs can share two springs for resetting and resetting keeping, so that the situation that the four driving handle rods are respectively provided with a spring for resetting is avoided, and the structure and the manufacturing cost of the distributing machine are simplified to a certain extent.

The application discloses a punching device for motorcycle exhaust muffler pipes and particularly relates to the technical field of punching devices, which comprises a supporting frame, a clamping and punching assembly arranged on the supporting frame, the clamping and punching assembly comprising a central cylinder arranged in the supporting frame, one end of the central cylinder being provided with an adjusting circular truncated cone cylinder, and a plurality of clamping blocks being arranged on the middle part of the adjusting circular truncated cone cylinder. The clamping blocks can be synchronously contracted or expanded along the radial direction, and the arc-shaped fitting grooves on the clamping blocks and the rubber pads can stably clamp the motorcycle exhaust muffler pipes with a certain range of outer diameter differences. The punching device can solve the problem that the traditional punching device can only be adapted to single-specification pipes and the time-consuming replacement of molds, greatly improve the universality of the equipment, simultaneously punch different positions of the same section of the muffler pipe, and automatically feed the slip ring through the motor-driven screw rod, so that the clamping, angle adjustment, punching and resetting linkage operation can be completed, manual intervention is reduced, and the operation strength is reduced.

The utility model discloses a high-speed cable taping machine, which comprises a case, a main shaft, an electric slip ring, a belt wheel, a bearing, a large bevel gear, a small bevel gear, a driving gear, a driven gear, a tape feeding roller, a mounting rack, a sliding wheel, a photoelectric sensor and a lapping head, and is characterized in that the case is used for mounting and fixing all parts, the electric slip ring is used for accommodating a photoelectric sensor wire group, and the belt wheel is used for transmitting power; the bearing is used for bearing and supporting, the bevel gear wheel and the bevel pinion are used for transmitting power, the driving gear and the driven gear are used for rotating the wire feeding roller, the wire feeding roller is used for conveying and guiding wires, the mounting frame is used for mounting and fixing the wire feeding roller, the photoelectric sensor and the wrapping head, the sliding wheel is used for conveying the wires, and the photoelectric sensor is used for identifying whether the wires are broken or not. The wrapping head is used for winding and wrapping a belt, and whether a wire is broken or not is identified through a photoelectric sensor so as to control whether a machine table operates or not.

The invention provides a while-drilling optical fiber communication system and method, and relates to the technical field of drilling engineering, and the while-drilling optical fiber communication system comprises a wellhead mechanism, a connection mechanism and a pay-off mechanism; the wellhead mechanism comprises a wellhead drill floor and a wellhead drill rod section; the connecting mechanism is located above the well mouth mechanism, can move up and down and comprises a fixing frame, a driving rod, a connecting drill rod section, a cable coiling device, a photoelectric sliding ring and a rigid connecting rod. And the upper end of the continuous drill rod section is detachably connected with the driving rod and the lower end is detachably connected with the wellhead drill rod section. A first optical fiber is arranged in the rigid connecting rod, and the rigid connecting rod is connected with a second optical fiber of the pay-off mechanism through a wet joint; the pay-off mechanism comprises a wire bin and an anchoring device, the top of the wire bin is provided with a wet connector connected with the second optical fiber, and the anchoring device fixes the wire bin and the continuous drill rod section. Through a three-stage optical fiber transmission path of'photoelectric composite cable-rigid connecting rod-wire cabin ', optical fiber communication maintenance during drill rod connection is realized, continuity and reliability of optical fiber communication during rotary drilling are ensured, and the problem of communication interruption is solved.

The invention provides an ultrahigh-temperature infinite rotation 4D imaging system, and relates to a 4D imaging system, the ultrahigh-temperature infinite rotation 4D imaging system comprises a system body installed on a CT rotary table, the system body comprises a water slip ring unit, a driving and electric slip ring unit, a high-temperature bearing barrel unit and a water and electricity slip ring unit, and a sample is positioned in the high-temperature bearing barrel unit; the high-temperature bearing barrel unit is used for realizing ultrahigh-temperature heating and driving, the electric slip ring unit is used for applying a drawing force, a compressing force or a twisting force to a sample and can also perform n * 360-degree infinite rotation along with the water slip ring unit at the bottom, and the water slip ring unit is positioned at the top of the high-temperature bearing barrel unit; the water slip ring unit and the water slip ring unit are jointly used for providing cooling liquid for a system body rotating during a high-temperature test so as to prevent the system body from being damaged due to excessive heating, the water slip ring unit is used for stretching, compression and torsion tests of a material under a ray field at an ultrahigh temperature, and an n * 360-degree infinite rotation test system can be realized; and the winding problem of the cable and the water cooling pipe is effectively avoided.

The invention relates to the technical field of visual inspection, and discloses a vision-based semi-closed sheet metal part inner wall appearance detection device. The device comprises a detection conveying table, a rack and a visual detection assembly, the visual detection assembly comprises a rotating mechanism and a reciprocating mechanism. The rotating mechanism drives a gear ring through a servo motor and drives a front shell provided with a visual camera to rotate, and comprehensive scanning of the inner wall in the circumferential direction is achieved. Meanwhile, the reciprocating mechanism utilizes worm and worm gear transmission and a swing arm connecting rod structure to convert motion into reciprocating swing of the visual camera, all-directional detection is covered, and the problems of detection dead angles and low efficiency existing in a traditional method are effectively solved; the device is further provided with a wiring channel penetrating through the worm and a conductive slip ring, continuous and stable power and signal transmission in the dynamic detection process is ensured, the device is compact in structure and high in automation degree, and detection comprehensiveness, accuracy and efficiency are remarkably improved.

The utility model discloses a petroleum transmission pipeline, and mainly relates to the technical field of transmission pipelines. Comprising two pipeline bodies and a butt joint structure, the section of each pipeline body is round, the butt joint structure is located at the ends, close to each other, of the two pipeline bodies, the butt joint structure comprises a connecting cylinder, the two ends of the connecting cylinder are attached to the ends, close to each other, of the two pipeline bodies correspondingly, and two sliding rings are slidably connected to the outer wall of the connecting cylinder; the sides, away from each other, of the two sliding rings are fixedly connected with top plates, the sections of the top plates are in a right trapezoid shape, the outer wall of the connecting cylinder is fixedly connected with a positioning rod, the section of the positioning rod is in a Z shape, and the arc face of the positioning rod is slidably connected with a positioning plate. The petroleum transmission pipeline butt joint device has the advantages that a worker can conveniently conduct butt joint or separation on petroleum transmission pipelines, the petroleum transmission pipelines can be adjusted to the proper length according to actual needs, and therefore the application range of the petroleum transmission pipelines is widened.

The utility model provides a dual-redundancy aircraft propeller wireless variable pitch system. The system comprises a driving integrated control board, a power supply distribution assembly box, a Lora communication system, a wireless data transmission radio station, a wireless power supply system, a transmitting double antenna, a receiving double antenna, a variable pitch motor and a propeller mechanical mechanism. Wherein the wireless power supply system comprises a transmitting coil group and a receiving coil group; the transmitting dual-antenna comprises an antenna I and an antenna II, and the receiving dual-antenna comprises an antenna III and an antenna IV; according to the system design provided by the utility model, an electric slip ring used in wired pitch change is replaced by a wireless pitch change mode, and wireless electric energy supply and wireless signal control of the pitch change motor are realized. And meanwhile, a dual-redundancy design of a Lora communication system and a wireless data transmission radio station is adopted to carry out wireless communication so as to control the variable-pitch motor.