13results about How to "Reduce maintenance man-hours" patented technology

The utility model relates to a cylinder cover valve spring disassembling and assembling tool which comprises a main body, a spring disassembling and assembling through hole and a positioning through hole. The main body is of a disc-shaped structure; a plurality of spring dismounting through holes are formed in the positions, corresponding to cylinder cover valve springs, of the body in a penetrating mode. The inner diameter of the spring dismounting through hole is smaller than the diameter of the cylinder cover valve spring; the inner diameter of the spring dismounting through hole is larger than the outer diameter of the first cylinder structure penetrating through the cylinder cover valve spring. The positioning through hole is formed in the central axis of the main body in a penetrating manner; one end of the positioning through hole is provided with a protruding structure which protrudes outwards and is hollowed out in the center. A first through hole through which a bolt passes is formed in the center of the convex structure; the positioning through hole is provided with two second through holes extending outwards in the 0-degree direction and the 180-degree direction respectively along the center. The cross section of the second through hole is rectangular, an arc top is arranged at the outer end of the rectangle, and the second through hole is used for fixing the disassembling and assembling tool into a corresponding bolt hole of the cylinder cover. According to the utility model, the operation process is simplified, the maintenance time of the engine is reduced, and the maintenance cost is saved.

The utility model relates to the technical field of chain production, and provides a roller chain production riveting device which comprises a guide wheel used for guiding a roller chain to enter a riveting channel, the guide wheel comprises a rotary shell, and an adjusting mechanism is arranged in the rotary shell; the adjusting mechanism comprises a rotating disc, a plurality of driving connecting rods surround the periphery of the rotating disc in an array mode, pushing blocks are arranged at the other ends of the driving connecting rods, the two ends of the driving connecting rods are hinged to the rotating disc and the pushing blocks respectively, and guide sliding grooves are formed in the bottoms of the pushing blocks and matched with guide rails fixed to the rotating shell. Adjusting teeth are fixed to the pushing block, penetrate through the side wall of the rotary shell and can penetrate into a gap between every two adjacent rollers of the roller chain. The guide wheel has the beneficial effects that the pitch of the guide wheel can be changed by utilizing the adjusting mechanism, so that the production requirements of roller chains with different specifications and different pitches can be met.

This utility model discloses a wire damage detection circuit, comprising a signal acquisition unit, a frequency conversion unit, a phase-locked loop (PLL) processing unit, a signal output unit, and a main control unit. The acquisition unit introduces the capacitance change between the isolation tool and the wire core into the circuit via a shielded single-core cable; an inverting oscillator-adjustable digital potentiometer network converts the capacitance difference into a frequency signal; the PLL performs phase comparison on this signal and outputs a linear analog voltage; the signal output unit amplifies, performs threshold comparison, and drives the signal to achieve visual alarm of the wire damage status and MCU quantization sampling. This circuit features high sensitivity, compact structure, low cost, and adaptive calibration and software filtering functions, enabling real-time detection of contact damage under high-speed wire stripping conditions.

This utility model relates to the field of automotive safety technology, specifically disclosing a structure for assembling a car driver's seat airbag and steering wheel. The structure includes: a steering wheel body, which is a wheel-shaped device for controlling the direction of the car's movement; the steering wheel body is assembled and connected to an airbag assembly component; the airbag assembly component includes an airbag shell, a frame, a spring, and a spring retainer. This structure for assembling a car driver's seat airbag and steering wheel utilizes a three- or four-hook structure on the airbag shell that engages with the hooks of the spring retainer. Combined with a pre-assembly structure using a snap-fit ​​spring, assembly only requires pressing down the airbag shell to engage the retainer with the hook grooves, simplifying the assembly process and improving the efficiency of large-scale production at vehicle manufacturers. This snap-fit ​​connection, combined with the elastic force of the spring, avoids the risk of bolt loosening, ensuring a stable connection between the airbag assembly component and the steering wheel body over a long period, providing a fundamental guarantee for the stable deployment of the airbag during a collision.

The utility model relates to the technical field of aircraft power systems, in particular to a dual-motor redundant drive vertical take-off and landing aircraft propulsion system, which comprises a transmission system, a power system, a control system and a power system, the transmission system comprises two motors installed on the top of an inner cavity of the cabin, one-way couplings installed on the two motors respectively, a main transmission shaft driven by the motors through the one-way couplings, a secondary transmission shaft in transmission connection with the main transmission shaft, and a tail thrust propeller driven by the secondary transmission shaft through a gear set. The two motors are symmetrically fixed on the carbon fiber support at the top of the cabin, so that the motors move upwards to the top of the cabin, the gravity center of the whole aircraft is concentrated towards the middle of the aircraft body and moves forwards relative to the gravity center of original horizontal tail arrangement, a traditional horizontal tail balancing weight can be omitted, and the overall weight is reduced.

The utility model provides a recycled polyamide 6 feeding system. The recycled polyamide 6 feeding system comprises a recycled caprolactam storage tank, a water pump mechanism, a filter, a controller and a caprolactam metering mechanism, the recovered caprolactam storage tank is connected to the water pump mechanism; the water pump mechanism is connected to the filter; the filter is connected to the caprolactam metering mechanism; the caprolactam metering mechanism comprises at least one caprolactam metering unit, and each caprolactam metering unit comprises a first valve, a first water level sensor and a caprolactam metering tank; the filter is connected to the caprolactam metering tank through the first valve, the first water level sensor is arranged in the caprolactam metering tank, and the controller is electrically connected with the first water level sensor and the first valve, so that equipment and pipes can be effectively reduced, and the investment cost is greatly saved.

This utility model provides a quick-release modular automotive seat suspension, relating to the field of automotive seat accessory technology. It includes a seat body, backrest, suspension mount, disassembly / assembly assembly, and auxiliary components. The seat body and backrest are externally connected to a seat frame. The suspension mount is connected to the lower end of the seat frame via the disassembly / assembly assembly. The auxiliary components are disposed inside the suspension mount. The disassembly / assembly assembly includes a lower locking seat, a insertion hole, an adjusting bolt, a connecting rod, a limiting pin, an upper locking seat, a insertion post, a limiting hole, a positioning block, an upper magnet, and a lower magnet. The auxiliary components include a pressure sensor, a vibration sensor, and an infrared sensor. The auxiliary components also include a data transmission module, which is electrically connected to the pressure sensor, vibration sensor, and infrared sensor respectively. This enables quick and stable disassembly / assembly of the seat frame and suspension mount, facilitating rapid disassembly and repair in case of seat malfunction. Maintenance of the seat frame or suspension mount can be performed independently without disassembling the overall structure.

This invention discloses a low-voltage wiring harness technology for vehicle front doors, specifically a structure for easy assembly and maintenance of a low-voltage wiring harness for vehicle front doors. The structure includes: a main front door wiring harness; at least one functional branch wiring harness assembly; and at least one quick-connect connector assembly. The quick-connect connector assembly includes a detachably connectable male connector terminal and a female connector terminal. The male connector terminal is provided with conductive contact terminals and is fixedly connected to the functional branch wiring harness assembly. The female connector terminal is disposed on the main front door wiring harness, thereby enabling the functional branch wiring harness assembly and the main front door wiring harness to form a modular connection. This invention employs a modular branch design combined with a foolproof quick-connect connector, completely changing the traditional overall binding mode. Assembly personnel can quickly connect the harness based on clear markings and the foolproof structure, significantly simplifying the assembly process and effectively reducing the probability of incorrect or missing connections.

This utility model relates to the field of transformer testing technology, and in particular to a device for cyclically testing the working performance of heat sinks in corrugated oil tanks. The device includes a display screen, a PLC controller, a testing unit, and a piping unit. The display screen shows operating instructions, test results, and real-time data. The PLC controller receives user instructions and controls the coordinated operation of each component. The testing unit detects data inside the corrugated oil tank under test, thereby monitoring performance changes of the heat sinks on the outside of the corrugated oil tank. The piping unit connects an oil storage tank to the corrugated oil tank under test, drawing or draining oil from the storage tank to the corrugated oil tank under test according to preset testing conditions, thus causing the heat sinks on the outside of the corrugated oil tank to operate under high intensity. This utility model solves the technical problem that existing testing equipment cannot simulate the dynamic cyclic operating conditions of transformers in actual operation, and can achieve coordinated testing of multiple parameters such as heat dissipation performance, pressure resistance, and cyclic fatigue.

The utility model provides a denitration VOC (volatile organic compound) integrated device which comprises a combustion chamber and a plurality of heat storage chambers communicated with the combustion chamber, an air inlet branch pipe, an exhaust branch pipe and a purging branch pipe are arranged at the bottom of the heat storage chamber; a low-nitrogen combustor is arranged at the top of the combustion chamber; a first-stage heat accumulator, a reducing agent spraying opening, an SCR device and a second-stage heat accumulator are sequentially arranged in the heat accumulation chamber from top to bottom; scavenging valves are arranged on the air inlet branch pipe and the exhaust branch pipe; according to the integrated RTO device disclosed by the utility model, denitration VOC is integrated into the integrated RTO device, so that the occupied area is saved; mutual abrasion between the catalyst and the heat storage bricks is avoided; the overall service life of equipment is prolonged; the low-nitrogen combustor reduces NOX generation from the source, the catalyst load of the SCR module is reduced, the catalyst activity attenuation rate is slowed down, the ammonia escape rate is effectively reduced, and secondary pollution is avoided.

The utility model relates to the technical field of door and window structures, in particular to a novel fireproof partition door and window structure. Comprising a window frame and a door frame which are fixedly connected, a fireproof door is rotationally arranged in the door frame, a door lock is fixedly arranged on the fireproof door, fireproof glass is arranged in the window frame, a containing groove is formed in the window frame, a fireproof expansion layer fixedly connected to the window frame is arranged on the edge of the containing groove, and the fireproof glass is installed in the containing groove. According to the fireproof door and window frame, the fireproof expansion layer is arranged in the containing groove, the fireproof expansion layer rapidly expands to form a compact carbonization layer when meeting fire, tiny gaps (smaller than or equal to 1 mm) between the door and window frame and the glass and between the door and window frame and the door plate are filled, permeation paths of flames, high-temperature gas (larger than or equal to 300 DEG C) and toxic smoke are blocked, the fire spreading time is prolonged to 90 minutes or above, and therefore the technical problem is solved.

The utility model relates to electronic mechanical brake technology field, concretely relates to a ball screw pair and the brake with the ball screw pair, a ball screw pair, including ball screw assembly, the ball screw assembly includes nut, screw and is located between the ball, the nut is the cup -shaped structure of one -end opening, the other end is closed, and the inner bottom of its closed end is provided with first stop boss, the ball screw assembly still includes drive shaft and stop ring, the drive shaft penetrates the screw, and fixedly connected between both, the stop ring fixedly sets up in one end of drive shaft, and with first stop boss position corresponds. Therefore, provide a ball screw pair and the brake with the ball screw pair, to solve the ball screw pair in prior art in the ball screw pair because of no limit or unreasonable limit structure and lead to the early failure problem of ball screw pair.

The invention discloses a module parameter monitoring method and device and a medium, and relates to the field of module parameter monitoring, and the method is applied to a host, identifies a module insertion action, and obtains a cable binding state reported by a module; determining a first module and a non-first module of the same type of monitoring parameters according to the state, and bringing the non-first module into a to-be-bound queue; the first module is controlled to collect monitoring parameters, and the non-first module is controlled to suspend the monitoring parameter collection function; and monitoring the state of the first module, if the state is changed, activating the first module from the queue to be bound according to a first-in first-out rule, and controlling the first module to collect monitoring parameters. In this way, different types of cables are adapted through a single interface, corresponding monitoring parameters are bound, and user operation is simplified; the same module is reused to realize large-scale production, and the material cost of manufacturers is saved; a user can replace a fault module across parameters, and the maintenance cost is reduced; a manufacturer does not need to distinguish module types after sale, the maintenance process is simplified, and finally full-link cost optimization and efficiency improvement are achieved.