40results about How to "Avoid insulating properties" patented technology

The invention belongs to the technical field of thermal circuit model construction, and particularly relates to a high-voltage power cable intermediate connection thermal circuit fault modeling analysis method and device, and the method comprises the steps: building a high-voltage power cable intermediate connection thermal circuit fault circuit model through analyzing a cable intermediate connection temperature inversion principle; the method comprises the following steps: establishing a geometric model for multi-physics field analysis of the intermediate connection of the high-voltage power cable by utilizing Comsol finite element simulation software, setting material parameters of each component, and setting field domain parameters; an electromagnetic field module is added, boundary conditions of electromagnetic field analysis are set, and a cable intermediate connection electromagnetic field simulation model is obtained; adding a solid heat transfer module to obtain a solid temperature field simulation model; obtaining an electromagnetic-thermal coupling model, and solving to obtain the temperature, current and loss of the cable middle connection wire core and the outer surface in different insulation states. According to the method, the cable intermediate connection fault problem can be found and predicted, and the reliability and the safety of the power cable are improved.

The utility model relates to the technical field of power distribution cabinets, and discloses a power distribution cabinet with a fire extinguishing structure, which comprises a cabinet body, the cabinet body is hinged with a cabinet door, the inner wall of the cabinet body is fixedly connected with a mounting rack, the side wall of the cabinet body is provided with a ventilation opening, and the inner wall of the cabinet body is provided with a fire extinguishing assembly. According to the power distribution cabinet with the fire extinguishing structure, the shielding plate shields the ventilation opening, the interior and the exterior of the cabinet body are isolated, oxygen is prevented from entering through the ventilation opening, a combustion-supporting substance is provided for flame combustion, the fire extinguisher is pressed down, carbon dioxide is sprayed into the cabinet body through the nozzle, the content of carbon dioxide in the cabinet body is increased, oxygen supply in the combustion process is restrained, and the combustion efficiency is improved. And by cutting off air exchange, increasing the content of carbon dioxide and reducing comburent required by combustion, fire extinguishment in the power distribution cabinet is realized, electric shock accidents are prevented, and meanwhile, the problems of short circuit or insulation damage caused by water and the like are solved.

The invention relates to the technical field of batteries, and discloses a battery and a shell assembly thereof, and the shell assembly comprises a top cover provided with a mounting hole; the electrode piece penetrates through the mounting hole, the electrode piece comprises a pole part, a connecting part and a fixing part, one end of the pole part is connected with one end of the connecting part, a groove is formed in the other end of the connecting part, the fixing part is arranged at an opening of the groove, the fixing part is arranged around the connecting part, the fixing part is located on one side of the plate face of the top cover, and the fixing part is used for being electrically connected with the tab; the connecting plate is arranged on the other side of the plate surface of the top cover, the connecting plate is welded on the pole part to form a welding part, and the connecting plate is used for being electrically connected with the busbar; wherein the thickness of the groove wall of the groove is t mm, the depth of the welding part is h1 mm, and t / h1 is larger than or equal to 0.25 and smaller than or equal to 3. According to the invention, external overcurrent and internal overcurrent can be balanced, so that the phenomenon of local overheating is avoided, and insulation or sealing failure of an insulating part and a sealing part is prevented.

The invention discloses an electric arc dynamic suppression method for hot plugging of an electric meter connector, relates to the technical field of electric energy metering equipment, and aims to solve the problems of electric arc generation, overproof metering error and the like caused by passive protection and lack of dynamic cooperative control in the prior art. The core of the method is that gap distance and power grid voltage phase signals are acquired in real time through a microcontroller, and the plugging speed, the signal injection and the position fine adjustment are dynamically regulated and controlled in three stages of pre-contact, low-current transition and full connection; and a machine learning model is combined to optimize a parameter threshold value, a redundancy safety mechanism and a multi-phase electric meter cooperative control strategy, so that double management and control of arc peak energy and metering errors are realized. The method can actively inhibit arc generation, avoid connector ablation and insulation deterioration, guarantee metering continuity and accuracy, adapt to complex power grid and environment working conditions, and meet the precision requirement of the intelligent electric meter.

An HTCC ceramic tube shell cavity structure comprises a ceramic cavity which comprises a ceramic side wall and a ceramic bottom surface and forms a hollow structure used for packaging an electronic element; the metal pattern is arranged on the ceramic bottom surface and is used for forming a circuit connection path so as to realize electric connection between the electronic element and an external circuit; and the insulating layer is arranged at the connecting part of the ceramic bottom surface and the ceramic side wall and is used for separating the metal pattern from the edge and the corner of the ceramic cavity so as to prevent overplating at the edge and the corner of the cavity in the chemical plating process. According to the invention, overplating generated at the edge and corners of the cavity when the ceramic substrate is subjected to chemical nickel gold plating is solved, and the risks of insulation resistance reduction and short circuit are avoided. According to the HTCC ceramic tube shell cavity structure, the insulating layer is arranged at the joint of the ceramic bottom surface and the side wall, so that the overplating phenomenon generated at the edge and the corner of the cavity in the chemical plating process is effectively avoided, and the reliability and the stability of electronic component packaging are remarkably improved.

The application relates to the technical field of transformers and discloses a transformer coil assembly adopting a winding positioning support composite structure, which comprises an insulating sleeve, left-right symmetrical mounting plates are fixedly connected to the insulating sleeve, an isolation part for isolating windings and an iron core is connected to the mounting plate on the right side, and a ventilation part for assisting heat dissipation of the windings is further arranged on the insulating sleeve and the mounting plate; wherein the isolation part comprises annular plates, a plurality of annular plates are uniformly and slidably nested from inside to outside, and a plurality of supports are fixedly connected to the left end of the annular plates in a uniform circumferential direction. The transformer coil assembly adopting the winding positioning support composite structure can effectively solve the problems that, in the prior art, when a transformer support is manually installed, operation deviation is prone to occurring, the spacing of the supports is uneven, the distance between the windings and the iron core or between adjacent windings is uneven, and the problems of insufficient insulation, space waste and aggravated magnetic leakage are caused.

This utility model provides a cable fixing structure for the handover test of a photovoltaic power station transformer substation, belonging to the technical field of cable fixing structures. The cable fixing structure includes: a wedge-shaped metal ring assembly divided into at least three circumferential segments, each segment having a spiral groove on its outer surface; a high-friction flexible pad tightly fitted to the inner circumferential surface of each segment; and an integral elastic steel ring surrounding the outer side of the metal ring assembly, the inner circumferential surface of which has a protruding ridge that engages with the spiral groove. When the elastic steel ring rotates relative to the metal ring assembly, the protruding ridge slides along the spiral groove, driving each wedge-shaped metal ring segment to synchronously contract radially and synchronously generate axial displacement, thus forming a self-tensioning clamp. This solves the problem of loose cable joints and uneven stress during the handover test caused by the inability of traditional fixing structures to adaptively clamp according to changes in cable tension.

The utility model discloses a gas heater, and relates to the field of fuel cells, the gas heater comprises a hollow heat conduction sleeve and a heating part arranged in the heat conduction sleeve, the heat conduction sleeve and the heating part are fixedly clamped through a detachable positioning hoop assembly; the heating part comprises a heating rod which is distributed along the central axis direction of the heat conduction sleeve and fins which are spirally distributed on the outer side wall of the heating rod; the heating rod comprises an outer pipe body of a composite layer structure and a heating wire fixed in the inner space of the outer pipe body. The heating component is coupled and positioned in the heat conduction sleeve, so that an effective positioning and fixing effect on the heating component is achieved; the heat exchange area in the heating rod and the heat conduction sleeve is increased, the heat capacity is increased, and the heat exchange efficiency is improved.

The utility model discloses an anti-electric shock protection device for a high-voltage switch cabinet, which comprises a cabinet body, the lower surface of the cabinet body is fixedly connected with a bottom plate, the upper surface of the bottom plate is provided with a first insulating layer, and the first insulating layer is made of polyethylene. According to the anti-electric shock protection device of the high-voltage switch cabinet, through the arrangement of the cabinet body, the bottom plate, the silicone rubber shell, the insulating frame, the first magnetic attraction strip, the fixing block and the second magnetic attraction strip, the silicone rubber shell is made of a silicone rubber material and has a good insulating effect, and when the silicone rubber shell sleeves the outer surface of the cabinet body, the cabinet body can be insulated; a second insulating layer is arranged on the outer surface of the fixing block, when the cabinet door is closed, a second magnetic attraction strip is magnetically attracted to a first magnetic attraction strip on an insulating frame, the cabinet door is isolated from the cabinet body under the action of the insulating frame, and the cabinet body can be protected against electric shock while the cabinet door is protected against electric shock; and electric shock caused when the electric leakage worker in the cabinet body touches the cabinet body or opens the cabinet door is prevented.

The utility model provides a kind of insulating bearing cable anchor, comprising: connecting component, with power transmission line hardware connection and bear load;Core body lifting ring, accommodate the glass fiber reinforced silicone rubber wire harness wound to form core body and bear load;Clamp, the inner cavity of the clamp is horn shape, the horn shape inner cavity is consistent with the wire harness of the core body lifting ring wire slot tangent direction introduction, gather has been wound in the core body lifting ring, wire harness, which needs to be shaped, is shrunk into substantially cylindrical through the cylindrical outlet of the clamp;The connecting component is connected with the core body lifting ring, and the clamp is tightly clamped on the core body lifting ring. The utility model has the beneficial effects that: by the inner cavity of the clamp is horn shape, improve the stress state of wire harness, and by additionally provided glue injection hole groove A and glue injection hole B, form complete sealing structure after silicone rubber overall coating forming, improve the reliability of product and overall electromechanical performance.

The present invention discloses a charging docking mechanism applied to an intelligent AGV parking garage, comprising a mobile docking piece and a fixed docking piece, wherein the mobile docking piece comprises a first electrode and the fixed docking piece comprises a second electrode; the mobile docking piece is arranged on a vehicle loading plate for parking electric vehicles, and the fixed docking piece is arranged on a parking space in the garage; the fixed docking piece is used to provide power to the mobile docking piece, and the mobile docking piece is used to provide power to the electric vehicle parked on the vehicle loading plate; when the vehicle loading plate is transported to the parking space, the first electrode on the mobile docking piece is in contact with the second electrode on the fixed docking piece. The application of the present invention realizes charging of the AGV intelligent parking garage when the electric vehicle is parked in the garage, filling the technical gap in the industry.

This utility model relates to the field of battery technology, providing a terminal structure, a top cover assembly, a housing assembly, a single battery cell, and a battery pack. The terminal structure includes a terminal post assembly and a seal. The terminal post assembly includes a main body and a first connecting portion and a second connecting portion spaced apart from each other and arranged around the periphery of the main body. The seal is fitted onto the main body and is located between the first connecting portion and the second connecting portion. One of the first connecting portion and the seal has a first protrusion protruding towards the other, abutting against the other; and / or, one of the second connecting portion and the seal has a second protrusion protruding towards the other, abutting against the other. This prevents the seal from failing due to creep, extending its service life and ensuring the battery's sealing performance during long-cycle use.

The utility model relates to battery technology field, concretely relates to electric core cover plate subassembly, electric core and battery package. Electric core cover plate subassembly includes cover plate body, pole, first sealing washer and second sealing washer. Pole includes pole column body and pole bottom plate, along the length direction of cover plate body, pole column body is eccentric arrangement on pole bottom plate, pole column body is insulated with cover plate body, the surface of pole bottom plate is equipped with the annular sealing groove around pole column body to cover plate body, first sealing washer is set up on pole column body, second sealing washer is located in sealing groove and is sealed between cover plate body and pole bottom plate by compression, and the compression rate of second sealing washer satisfies preset condition. The utility model discloses through sealing groove and double sealing washer design, effectively solved the problem of poor sealing of eccentric pole because of the bottom plate warping, avoids the electrochemical corrosion or insulation aging between pole and cover plate body, reduces the short circuit risk.

This invention relates to the field of output terminal moisture protection technology, and discloses an intelligent moisture-proof device for photovoltaic inverter output terminals, comprising: a sealed protective shell with an opening at the bottom and a sealing groove around the opening, a sealing gasket embedded in the sealing groove, mounting holes for matching bolts around the perimeter of the sealed protective shell, and an alarm, controller, and semiconductor cooler mounted on the top. The inner cavity of the sealed protective shell has a temperature-conducting inclined plate that fits against the semiconductor cooler, and a temperature and humidity detector is installed on the inner wall. The outer surface has a wiring hole with a sealing ring, an exhaust hole with an exhaust fan, and a sealing groove. A sealing block and a sealing outer plate are respectively fitted into the inner cavity of the sealing groove and the exhaust hole. This device can form a closed-loop, surface-sealed barrier, effectively preventing external moisture from intruding into the inverter output terminal area, avoiding terminal oxidation and degradation of insulation performance due to moisture.

The utility model discloses a novel high frequency connector wire arranging frame, include, connector main part, wire arranging frame body, high frequency signal line, high frequency signal ground wire and high frequency signal tape, connector main part and wire arranging frame body fixed connection, high frequency signal tape is covered in the outer surface of high frequency signal line and high frequency signal ground wire, high frequency signal line, high frequency signal ground wire and high frequency signal tape form single twisted pair high frequency line, wire arranging frame body inside is equipped with the stop position structure, after single twisted pair high frequency line enters wire arranging frame body inside, and is divided into two high frequency signal lines and is worn out through the stop position structure, is equipped with high frequency signal line pad and high frequency signal ground wire pad on connector main part, two high frequency signal lines are welded in corresponding high frequency signal line pad department, high frequency signal ground wire is welded in corresponding high frequency signal ground wire pad department, and high frequency signal ground wire is bent structure. The present application can realize the improvement connector main part characteristic impedance unstable, and the problem of electrical bad, and the practicality is strong.

The invention relates to the technical field of optical couplers, in particular to an optical coupler simulator which comprises a sending module, an isolation transformer and a receiving module, the sending module is used for receiving input signals, generating high-frequency carrier signals and conducting OOK modulation on the input signals, the isolation transformer is connected between a sending end circuit and a receiving end circuit, and the receiving end circuit is connected with the isolation transformer. Electrical isolation and signal transmission are realized through an insulating medium; according to the optical coupler simulator, a high-frequency carrier wave is generated through the LC oscillator, the OOK (on-off keying) modulation technology is adopted, the transmission rate of the optical coupler simulator can reach 25 Mbps, and the low-speed transmission capacity, ranging from 100 Kbps to 1 Mbps, of a traditional optical coupler is greatly exceeded.

The invention relates to the technical field of communication engineering construction, and discloses anti-line-scraping equipment for communication engineering construction, which comprises a cart, a line rotating wheel is fixedly connected to the top of the cart, a straightening device is arranged at the top of the cart, a clamping device is arranged at the top of the cart, and a cleaning device is arranged at the bottom of the cart. The straightening device comprises a concave fixing plate, a first T-shaped plate, a clamp, a connecting rod, a first roller, a first sliding plate, a motor, a reciprocating lead screw, an L-shaped guide rod and a second T-shaped plate, the concave fixing plate is fixedly connected to the top of the cart, the first T-shaped plate is slidably connected to the inner wall of the concave fixing plate, the clamp is fixedly connected to the left side of the first T-shaped plate, and the connecting rod is fixedly connected to the left side of the second T-shaped plate. According to the cable laying device, the first T-shaped plate moves left and right to drive the clamp to move left and right, a cable to be laid is guided, bending of the cable during connection during laying is reduced, and cable damage or insulation damage is avoided.

The utility model discloses a riveting-point-free iron core and a motor with the same, the riveting-point-free iron core comprises a plurality of iron core units, the plurality of iron core units are sequentially arranged along the circumferential direction of the iron core, and each iron core unit comprises a connecting part and a plurality of silicon steel sheets; the plurality of silicon steel sheets are sequentially arranged in the axis direction of the iron core, the upper surfaces and the lower surfaces of the silicon steel sheets are flat surfaces, the connecting parts are arranged on the surfaces of the iron core units, the connecting parts are tightly attached to the plurality of silicon steel sheets so as to fix the plurality of silicon steel sheets into a whole, and the outer surfaces of the connecting parts are used for winding; every two adjacent iron core units are clamped with each other; the iron core has the advantages that the silicon steel sheets are fixed by the connecting parts, iron loss is reduced, and iron core performance is improved.

The utility model provides a kind of winding fixed anti-loosening reinforcing type transformer, belong to transformer technical field, including transformer body, the inner chamber of transformer body is embedded with equidistant distribution's sealed partition, the inner chamber of transformer body is evenly formed winding chamber by equidivided sealed partition, the horizontal sliding of two side edges' H type slide on transformer body inner wall.Anti-loosening frame is located above the inside of winding chamber, the coil of winding top is tightened by anti-loosening frame, avoid the coil loosening and falling off of winding outer wall, form the telescopic frame of mutual sleeve joint between H type slide of each sealed partition two sides, by the linkage assembly outside transformer body, so that all H type slide drive anti-loosening frame to the outer wall of winding moves, so that the relative movement of two anti-loosening frames in each winding chamber, to adhere on the outer wall of coil, avoid coil loosening and falling off, and then to the protection effect of transformer.

The utility model provides a kind of current lead structure and nuclear fusion device, it is related to nuclear energy fusion technical field, the current lead structure includes conductor, front end cap and back end cap, the one end of conductor is opened with at least one pair of flow channel through hole along first direction, back end cap is set in one end of flow channel through hole, front end cap is set in the other end of flow channel through hole, back end cap and front end cap are close to the side of flow channel through hole respectively opened with the recess of the different flow channel through hole intercommunication, the one end of front end cap is respectively opened with the recess intercommunication liquid inlet hole and liquid outlet hole, wherein, first direction is perpendicular with the axial direction of conductor.The utility model can improve the insulation performance of current lead.

The invention discloses a battery piece assembly and a manufacturing method thereof, a battery string and a photovoltaic power generation system, and the manufacturing method of the battery piece assembly comprises the following steps: arranging a plurality of first electric connection assemblies and a plurality of second electric connection assemblies on a battery piece, the first connecting assembly comprises first connecting lines, the first connecting lines are electrically connected with a plurality of second grid lines of the battery piece respectively, the first connecting lines and the first grid lines are spaced in the Z direction, the second connecting assembly comprises second connecting lines, the first connecting lines and the second connecting lines are arranged at intervals in the X direction, and the second connecting lines are electrically connected with a plurality of first grid lines of the battery piece respectively. And a gap is formed between the second connecting line and the second grid line along the Z direction. According to the manufacturing method of the battery piece assembly, the manufacturing method is simple, and the steps are simplified, so that the production efficiency of the battery piece assembly is improved, and short circuit of the battery piece assembly is avoided.

The invention relates to the technical field of new energy, in particular to a gluing tool and a battery system.The gluing tool comprises a moving part which moves relative to a pole piece; the gluing assembly is arranged on the moving part and comprises a glue storage part and a gluing part, the glue storage part is used for storing insulation glue, the gluing part is provided with a glue outlet, and the glue outlet is connected with the glue storage part; the adjusting assembly is arranged on the gluing piece and is used for adjusting the widths of the two ends of the glue outlet in the length direction of the glue outlet, so that the gluing thickness on the pole piece is consistent; the length direction of the glue outlet is perpendicular to the moving direction of the moving part. In the whole gluing path, the consistency of the thickness of the glue layer is ensured, and the safety performance of the battery is improved.

The utility model discloses a novel temperature sensing detection device, comprising a PCB board, the PCB board is provided with a temperature sensing element, and the temperature sensing element is used for detecting the temperature value of a wiring terminal in real time; the insulation heat conduction layer is used for absorbing heat of the wiring terminal and transmitting the heat to a temperature sensing element of the PCB, and the temperature sensing element is installed in the insulation heat conduction layer in an embedded mode; and the heat-conducting metal sheet is arranged outside the insulating heat-conducting layer in a wrapping manner, and the metal heat-conducting metal sheet is in contact with the PCB, absorbs the heat of the wiring terminal and uniformly conducts the heat to the insulating heat-conducting layer. According to the utility model, the temperature sensing element and the heat conduction material are integrated, so that under the condition of ensuring insulation and voltage resistance, assembly integration is realized, temperature detection precision is improved, and safety accidents caused by over-temperature spontaneous combustion of products are prevented.

The utility model relates to a power supply system for new energy engineering machinery and agricultural machinery accessories, and belongs to the technical field of new energy power supply devices. Comprising a vehicle end direct current charging interface and an accessory end electricity taking plug. The vehicle end direct current charging interface is an original national standard direct current charging interface of new energy engineering machinery / agricultural machinery, the accessory end electricity taking plug is electrically connected with a vehicle high-voltage battery pack through the vehicle end direct current charging interface, and the accessory end is connected to the vehicle end direct current charging interface for electricity taking through a cable with the accessory end electricity taking plug. When the accessory works, electricity taking and vehicle charging share the same electrical interface. Through interface multiplexing and intelligent design, a technical closed loop is formed in the aspects of reducing cost, improving adaptability, enhancing safety, optimizing energy management and the like, and a high-reliability and high-compatibility solution is provided for accessory power supply of new energy engineering machinery / agricultural machinery.

The application belongs to the technical field of cable connection fittings, and particularly relates to a shielded separable cable fitting with a temperature measuring function, which comprises the following scheme: a clamping mechanism, a hand holding shell fixedly arranged in the middle of the clamping mechanism, a protective shell fixedly arranged at the end of the clamping mechanism, a neodymium magnet embedded in the middle of the protective shell, a check mechanism arranged at both ends of the clamping mechanism, the clamping mechanism comprising: an insulating shell, the outer surface of the insulating shell fixedly arranged at the end of the protective shell, a metal cylinder, the metal cylinder nested in the middle of the insulating shell, an internal thread, the internal thread open arranged on the inner wall of both ends of the metal cylinder, a metal ring, the metal ring fixedly sleeved on the inner wall of the metal cylinder, and a metal plate, the outer surface of the metal plate fixedly arranged on the inner wall of the metal ring. The worm and gear self-locking clamping is adopted, the worm and gear transmission structure is adopted in the never-loose check mechanism, and the worm and gear transmission structure has the characteristics of one-way driving and reverse self-locking.

The utility model relates to a high-voltage measurement and protection device of an electric power system, in particular to a supporting type large creepage distance current transformer. Comprising an insulator and a coil device body sealed in the insulator, primary and secondary wiring terminals are arranged at the top and bottom of the insulator, umbrella skirts are arranged on the outer surface of the insulator, and front and rear side voltage-sharing nets are arranged at the lower end in the insulator; the coil device body comprises an iron core, a secondary winding and a primary winding, wherein the secondary winding and the primary winding are wound on the iron core from inside to outside. An insulating layer and a protective layer are wrapped on the iron core. The secondary winding is supported by a secondary winding support, an insulating paperboard and two layers of polyester films are arranged at the two ends of the secondary winding in a padded mode, a polyester film is arranged between secondary wire layers of the secondary winding in a half-stacked mode, an insulating layer, a shielding layer and a protective layer are wrapped on the outer side of the secondary winding, and a polyester belt, a polyurethane plate and semi-conductive crepe paper are wrapped on the outer side of the primary winding. The utility model has the advantages of small volume, low cost, large surface creepage distance, high dynamic thermal stable current, high metering precision, moisture resistance, condensation resistance and electricity larceny prevention.

The utility model provides an intelligent distribution box, which relates to the technical field of electric appliance control, and comprises a plastic case, the plastic case comprises a top cover, a bottom plate and a high cover, and the top cover and the bottom plate form a protection structure through a sealing rubber ring, and is characterized in that the interior of the plastic case is divided into a control cavity and a wiring cavity, a main control board is arranged in the control cavity; a main control chip is arranged on the main control board; the master control chip comprises a first master control chip and a second master control chip, and the first master control chip and the second master control chip are connected through a USART interface to form a master-slave control architecture. Compared with the prior art, through the cooperation of the above structures, the device has the following beneficial effects: 1, the reliability, the intelligent level and the environmental adaptability of the device are significantly improved; and secondly, the temperature rise during large current transmission is greatly reduced, the reduction of conductivity and insulation aging are avoided, and the signal transmission stability is ensured through strong and weak current separation, grounding optimization and anti-interference measures in the whole scheme.

A kind of cable joint explosion-proof box double-end fixing structure belongs to cable explosion-proof field, including shell, shell can be fixedly connected with the lateral wall of box body, the middle part of shell is provided with through-hole, through-hole can be passed by cable;The end of shell away from box body is outer end, the end of shell close to box body is inner end;The outer end of shell is provided with outer pressure seat, the inner side of outer pressure seat is provided with bushing, the outer portion of outer pressure seat is provided with fastening sleeve, one end of fastening sleeve is fixedly connected with shell;The inner end of shell is connected with the large mouth end of self-locking cone sleeve, cable can pass through self-locking cone sleeve, the small mouth end of self-locking cone sleeve is towards box body center, the small mouth end of self-locking cone sleeve is slidably provided with compression ring.The large mouth end of self-locking cone sleeve of the present application is outward, small mouth end is towards box body center, cable is from outside to inside and is inserted, the compression ring of small mouth end of self-locking cone sleeve applies axial pre-tightening force, self-locking cone sleeve is pushed along small mouth to large mouth direction, and then radial compression and occlusion are generated, to realize sealing, prevent pulling out, prevent cable from swinging.

This utility model relates to the field of cable stranding technology and provides a fire-resistant cable stranding machine, including a pressure plate. An output block is fixedly connected to the top of the pressure plate. A rotating rod is rotatably connected inside the output block. Two connecting plates are fixedly connected to the outer surface of the rotating rod. A rod sleeve is fixedly connected to the end of each connecting plate away from the rotating rod. A rotating rod is rotatably connected to the inner surface of the rod sleeve. A moving gear is fixedly connected to the end of the rotating rod near the output block. Fixed gear rings are meshed on the outer surfaces of the two moving gears. This utility model features a self-rotating and revolution-rotating stranding structure, ensuring uniform rotation of the single wire during stranding. This avoids single wire deviation or knotting due to uneven tension, controls the consistency of the stranding pitch, ensures a tight structure and uniform outer diameter of each layer of the cable, forms a stable spiral stranding structure, improves the cable's tensile and bending resistance, and prevents single wire breakage or insulation damage due to excessive twisting.

The invention relates to the technical field of coal mine mechanical automation control, and discloses a coal mine driving anchor machine explosion suppression type electro-hydraulic control system which comprises a valve box body, and a control and acquisition circuit board, a proportional reversing valve, an attitude sensor, a flow meter, a pressure sensor and a water and oil leakage sensor are integrally arranged in the valve box body. A multi-source redundancy sensing and fault self-adaptive response system runs in the control and acquisition circuit board and is respectively connected with each execution and sensing element. The state fusion model unit integrates flow and pressure data to judge the clamping stagnation working condition of a drill rod and controls a feeding oil cylinder to withdraw, closed-loop diagnosis and reset of abnormal action of a proportional valve are achieved through feedback of a valve element position sensor, and the main loop safety isolation unit responds to water leakage and oil leakage signals to trigger the power module to be powered off emergently. According to the system, high-integration-level protection and fault self-adaptive response are achieved, and the operation safety and the control precision of the bolter-miner under the severe working condition are guaranteed.