21results about How to "Reduce mechanical failure" patented technology

The invention relates to the technical field of spacecrafts, and discloses a spacecraft interstage unlocking device and a spacecraft, the spacecraft interstage unlocking device comprises a protection cover, and the protection cover is connected with a first cabin section; the connecting piece penetrates through the second cabin section in a limiting manner and movably penetrates through the first cabin section and the top surface of the protective cover; a limiting groove is formed in the side wall of one end, extending into the protective cover, of the connecting piece; the locking mechanism is arranged in the protective cover and comprises a lock hook and a lock piece, the lock hook is rotationally connected to the inner wall of the protective cover, one end of the lock hook is bent to form a hook part, the lock piece is movably arranged in the protective cover and has a locking position and an unlocking position, and when the lock piece is located at the locking position, the lock piece abuts against the lock hook to limit rotation of the lock hook; when the lock piece is located at the unlocking position, the lock piece is separated from the second cabin section along with the first cabin section, and the connecting piece moves along with the second cabin section and drives the lock hook to rotate till the hook part is separated from the limiting groove. The spacecraft comprises the spacecraft interstage unlocking device. And testability is achieved, and the using impact force is low.

The invention relates to the technical field of environment monitoring, and discloses a construction environment monitoring device which comprises a vertical plate, a base is fixedly mounted at the lower end of the vertical plate, a connecting groove is formed in the front end of the vertical plate, a monitoring mechanism is slidably connected in the connecting groove, and a first forward and reverse motor is fixedly mounted at the upper end of the vertical plate; a lead screw is fixedly installed at the output end of the first forward and reverse motor and movably installed in the connecting groove, the rear portion of the monitoring mechanism is in threaded connection with the lead screw, and sliding rails are fixedly installed at the left end and the right end of the vertical plate correspondingly. According to the construction environment monitoring device, automatic adjustment of the dust detector in the vertical direction, the horizontal direction and the pitching angle is achieved, the flexibility is high, the automation degree is high, manual intervention is reduced, the monitoring efficiency and accuracy are improved, the construction environment monitoring device can adapt to different construction environments, clamping and bolt fixing design is adopted, and the construction environment monitoring device is convenient to use. Therefore, the dust detector is very simple, convenient and quick to mount and dismount, and is convenient to calibrate or replace regularly.

This invention discloses a molten salt pump with a bearing cooling system, belonging to the technical field of high-temperature molten salt pumps. It includes: a pump body, a pump shaft, a frame, a bearing housing, a cooling device, and a support frame. The pump body is mounted on the frame; the frame is mounted on the top of the pump body, and the bearing housing is mounted within the frame. The pump shaft is rotatably connected to the bearing housing via bearings. The cooling device is installed inside the bearing housing, with multiple microchannel coils respectively fitted onto the outer surface of the bearing. A flywheel energy storage device is installed inside the bearing housing, driving ambient air to enter through the air inlet and generating a forced airflow that blows across the cooling end of the cooling device for heat exchange. The cooling end of the cooling device is connected to a cold air inlet pipe, which is connected to multiple microchannel coils, and all microchannel coils are connected to an outlet pipe. An outlet is provided at the bottom of the bearing housing, and the outlet pipe is connected to the outlet. This invention miniaturizes and integrates a compressor-free cooling device into the bearing housing for active phase change cooling, extending the lifespan of the molten salt pump.

The utility model relates to the technical field of down feather processing, in particular to a negative pressure screen device of a high-down two-compartment feather separating machine, which comprises a two-compartment machine main body, and is characterized in that the two-compartment machine main body comprises a first-compartment box body, a second-compartment box body is arranged on one side of the first-compartment box body, a feather inlet is arranged on one side of the first-compartment box body, and a second-compartment box body is arranged on the other side of the first-compartment box body. A first compartment discharging shaft is arranged in the center of the interior of the first compartment box body, a first compartment feather outlet shaft is arranged on one side of the lower portion of the first compartment discharging shaft, a first compartment feather outlet is formed in the lower portion of the first compartment feather outlet shaft, and a negative pressure three-face screen is arranged in the second compartment box body. Down feather can be more effectively separated from mixed materials, the overall working efficiency is improved, the high-strength injection molding bracket and the multi-layer woven stainless steel wire net are adopted, the screen has the long service life, the materials can be prevented from being accumulated on the screen through the electromagnetic vibrator, the load of the screen is balanced, and the service life of the screen is prolonged. And mechanical faults caused by material accumulation are reduced.

The utility model discloses a textile frame with strong applicability, which comprises a base, the upper surface of the base is fixedly connected with a hydraulic cylinder body, a piston rod is arranged in the hydraulic cylinder body, one end of the piston rod far away from the hydraulic cylinder body is fixedly connected with a mounting plate, and the upper surface of the mounting plate is fixedly connected with a plurality of guide rods. The bottom end of the mounting plate is in threaded connection with a motor base, the bottom end of the motor base is fixedly connected with a motor, the output end of the motor is fixedly connected with a lead screw, a sliding block is arranged on the guide rod and the lead screw, a lead screw hole and a plurality of guide holes are formed in the sliding block, the lead screw hole is movably connected to the outer surface of the lead screw, and the guide holes are fixedly connected to the guide rod. The guide holes are movably connected to the outer surfaces of the guide rods, and fixing blocks are fixed to the ends, away from the mounting plate, of the guide rods. Through the structure, the working position can be quickly and accurately adjusted, and the time and the labor force required by manual adjustment are reduced.

The utility model discloses mixing equipment for preparing dry powder coating, which comprises a support frame and a stirring shell, the support frame is mounted on external equipment, the stirring shell is mounted on the support frame, and an anti-overload mechanism is arranged on the stirring shell. The anti-overload mechanism comprises a spiral blade, a transmission shaft, a driven wheel, a hexagonal sleeve, a middle rod, a telescopic mechanism, a contraction table, a contraction block, an insertion rod, a clamping head and a transmission mechanism, the transmission shaft is rotationally connected to the stirring shell, the spiral blade is installed on the transmission shaft, and the middle rod is installed on the transmission shaft; the anti-overload mechanism can effectively prevent the motor from being damaged due to overlarge rotating torque, so that the safety and the reliability of equipment are improved, and through the interaction of the spiral blade, the transmission shaft, the driven wheel, the hexagonal sleeve, the middle rod, the clamping head and the compensation spring, the mechanism can be automatically disconnected when the torque exceeds a set threshold value, so that the motor is protected from being influenced by overload.

The utility model relates to the technical field of exhaust fan, especially utilize the pivot power drive cover plate's energy storage exhaust fan, including the casing, be provided with the air outlet and the air intake on the casing, be provided with the air duct butt joint in the casing inside the air outlet and the air intake, be provided with the fan in the air duct, the casing inside still be provided with the motor and power connection in the motor transmission mechanism, the casing still rotatoryly connected with pivot spare, pivot spare one end transmission connection with transmission mechanism, at least one fixed part is fixedly connected on pivot spare, pivot spare is fixedly connected with the flap through the fixed part, the motor drives pivot spare through transmission mechanism, makes pivot spare drive flap cover up the air intake or open the air intake, through adopting pivot power drive flap, compared with the traditional linear motor hinged swing arm mode, pivot rotation drive flap's structure is more compact, greatly reduces the space occupation of power drive system, is favorable to the miniaturization design and installation layout of exhaust fan.

This utility model provides a rotatable work light, relating to the field of lighting technology. The control device is housed within the lampshade and includes multiple first lamp groups and a conical knob. Rotating the conical knob controls the first lamp groups to extend or retract axially along pre-drilled holes in the lampshade. When extended, the first lamp groups are in an active state; when retracted, they are in a non-active state. The control device also includes a screw, a base, a base fixing rod, a slider, a conical knob cover, and a second lamp group. The switching device includes a connecting block, a fixing block, a limiting block, a sliding plate, a spring fixing rod, a spring, a rack, a switch control block, an encoder, gears, and a main shaft, enabling the extension and retraction of the first lamp groups to synchronize with the switching of the second lamp group, and adjusting the brightness of the first lamp groups via the encoder. Furthermore, a folding frame is included to support the work light. This utility model is easy to operate, offers flexible lighting, and has a compact structure, improving work efficiency and portability.

This utility model discloses a detachable headrest device for drivers and passengers, relating to the field of driving and passenger product technology. It includes a main body, a side pillow, and a side pillar. The side pillow is mounted on the side pillar, which is slidably mounted on the side of the main body. An elastic locking mechanism is provided between the side pillar and the main body. The elastic locking mechanism includes an elastic clip, and a slot is provided on the side pillar. The elastic clip engages with the slot, and pressing the elastic clip releases the engagement. By pressing the elastic clip, it deforms and disengages from the slot, allowing the side pillar to be removed from the main body. Reinstallation is simple: press the elastic clip, insert the side pillar, and release to re-engage the clip. Both installation and disassembly are convenient and quick. Users can customize the side pillow's style to meet their individual needs. Multiple slots are provided on the side pillar for easy adjustment of the side pillow's left and right position.

The utility model discloses a color paint stirring device of convenient unloading mechanism, including support connecting frame still including setting mobile wheel at support connecting frame bottom, setting stirring jar body in support connecting frame inside, fixedly connected installation connecting seat of support connecting frame one side. Solve the problem of serious raw material waste when traditional device unloads, reduce the additional solvent needed for cleaning, reduce the cost. At the same time, reduce the residual time -consuming cleaning, shorten the unloading and cleaning time, improve production efficiency, avoid the delay of construction period when cleaning during multiple batch production. In addition, reducing the residual can prevent the pollution of the next batch of materials, ensure the stable product quality, reduce the risk of scrapping caused by deterioration, also can reduce the corrosion and wear of color paint residual to equipment, reduce mechanical failure, reduce maintenance cost, prolong the service life of equipment, also reduce the security risk of manual cleaning contact with harmful substances, reduce the labor intensity, be favorable to production management and improve enterprise competitiveness.

The invention relates to the technical field of carrier rockets, and discloses an auxiliary device for folding and unfolding a rudder and a folding and unfolding method of a carrier rocket rudder, the auxiliary device comprises a binding belt and a blocking and buffering piece, the two ends of the binding belt are detachably connected, and the binding belt with the two ends connected can be arranged outside the rudder and a rocket body in a sleeving mode so that the rudder can be located at the folding position; the two ends of the buffering piece can be rotationally connected with the launching pad and the rudder respectively, and when the two ends of the binding belt are not connected, the rudder can compress the buffering piece under the action of gravity and unfold from the folding position to the unfolding position. The folding and unfolding method comprises the following steps that the rudder is rotated to be attached to a rocket body; the binding belt is wound around the rudder and the rocket body, and then the two ends of the binding belt are connected, so that the rudder is fixed to the folding position; the stopping and buffering piece is connected between the launching pad and the rudder, the binding belt is detached, and the rudder rotates to the unfolding position from the folding position under the action of gravity; and removing the blocking and buffering piece. The folding and unfolding speed is high, and the cost is low.

The utility model discloses a continuous cooling fast oil gun device, which relates to the technical field of ignition oil guns, and comprises an oil gun assembly, an ignition gun assembly and a stable combustion shell, the stable combustion shell is used for being installed in a combustion chamber and provided with an opening communicating with the combustion chamber. The oil gun assembly comprises an oil gun and an oil supply pipeline, the oil gun is installed in the stable combustion shell, faces the opening and is used for spraying fuel oil, one end of the oil supply pipeline communicates with the oil gun, the other end of the oil supply pipeline extends out of the combustion chamber, and the part, located on the outer side of the combustion chamber, of the oil supply pipeline communicates with a cooling gas pipeline for introducing cooling gas into the oil supply pipeline; the ignition gun assembly comprises an ignition gun, the ignition gun is installed in the stable combustion shell and close to the oil gun, an advancing and retreating structure can be omitted, the response time is shortened, a cooling gas pipeline is additionally arranged, the oil gun is prevented from being burnt out, the stability of equipment is improved, and the service life of the equipment is prolonged.

The utility model discloses a transmission mechanism of a cleaning machine. The transmission mechanism comprises a box body; the crankshaft is connected with power and used for transmitting rotating force; the connecting rod is arranged on the protruding part in a sleeving mode, a spiral groove is formed in the inner wall of the connecting rod, and the spiral groove spirally extends to the two ends of the connecting rod in the width direction of the inner wall of the connecting rod and is used for guiding and discharging chippings generated in the rotating process of the crankshaft; one end of the plunger is rotationally arranged on the connecting rod through a plunger pin, and a spiral groove is formed in the inner wall of the connecting rod, so that lubricating oil can be promoted to be uniformly distributed along the inner wall of the connecting rod, 360-degree all-dimensional lubrication is realized, and metal scraps, abrasion particles and other impurities generated in the operation process of the crankshaft can be effectively guided and discharged.

The utility model belongs to the field of heating equipment, particularly relates to waste gas waste heat recovery direct-fired high-efficiency heating equipment, and aims to solve the problems that the levelness of the conventional equipment cannot be adjusted, and vibration generated during working cannot be reduced and absorbed, so that the equipment is shifted or toppled over due to external vibration or impact. In order to solve the problems that the working efficiency and the safety are reduced, the utility model provides the following scheme that the device comprises a box body, the interior of the box body is divided into a combustion chamber and a working chamber, and a through hole is formed in one side, located in the working chamber, of the box body; the adjusting assembly is arranged on the box body and is used for adjusting the height and the levelness of the box body; and the buffering assembly is arranged on the adjusting assembly and used for reducing and absorbing vibration of the heating equipment during working. By means of the adjusting assembly and the buffering assembly, the stability of the device can be enhanced, the device is prevented from moving or toppling over due to external vibration or impact, it is ensured that the device can stably and reliably operate, and working efficiency and safety are improved.

The invention belongs to the technical field of carrying robots, and particularly relates to a part loading, unloading, picking and carrying robot for mechanical part manufacturing, which comprises an AGV (Automatic Guided Vehicle), an adjusting assembly for a sliding block is arranged in the AGV, a clamping assembly is arranged on the sliding block, two partition plates are fixedly mounted on a frame, and a storage assembly is arranged in the frame. A square frame is arranged in the frame, a filter plate is arranged in the square frame, and a guide assembly for the square frame is arranged in the frame. According to the part loading, unloading, picking and carrying robot for mechanical part manufacturing, the transferred mechanical parts can be conveniently cleaned through the arranged filter plate, the mechanical parts are placed in the frame to be stored, the filter plate is made to vibrate, impurities adsorbed on the mechanical parts can fall off through vibration, and the mechanical parts are prevented from being damaged. The cleanliness of mechanical parts is improved, the service life of the mechanical parts can be effectively prolonged, the frequency of maintenance and replacement is reduced, and the precision of subsequent machining and assembling is ensured.

The invention discloses a single-motor-driven wheel arm composite structure and a control method thereof.The single-motor-driven wheel arm composite structure comprises a fixed arm, the fixed arm comprises an outer connecting wing plate and an inner connecting wing plate, a rotating arm is rotationally arranged between the outer connecting wing plate and the inner connecting wing plate through a speed reduction assembly, and a hollow motor is arranged on the inner connecting wing plate and comprises a stator and a rotor; a wheel rim is arranged on the rotor and sleeved with a tire, a brake disc is arranged on the side, close to the inner connecting wing plate, of the wheel rim in a supported mode and located between the wheel rim and the speed reduction assembly, a brake caliper matched with the brake disc is arranged on the inner connecting wing plate, the hollow motor is hollow, a clutch is installed in the hollow motor, one end of the clutch is connected with the speed reduction assembly, and the other end of the clutch is connected with the speed reduction assembly. The other end of the clutch and the rim rotate at the same angular speed, and connection and disconnection of force of the speed reduction assembly driving the rotating arm to rotate are controlled through the clutch. The single motor drives the wheel and the rotating arm at the same time, the integration degree of the wheel arm structure is improved, and the number of motors and occupied space are reduced.

The utility model belongs to the technical field of electric connectors, and particularly relates to a parallel type double-sampling guillotine current probe, which comprises a probe main body, a probe seat, an outer spring, an inner spring and a voltage probe, the probe main body is provided with a probe head and a probe rod, the outer spring and the probe seat are sleeved outside the probe rod, the outer spring is limited between the probe head and the probe seat, and the inner spring is limited between the probe head and the probe seat. The top of the probe rod is connected with a fastener used for limiting the probe seat from being separated from the probe rod, a vertical needle hole through which the probe head penetrates out of the probe rod is formed in the probe body, the voltage needle is provided with a lower sampling part and an upper conductive part, insulation is formed between the voltage needle and the probe body, and the upper conductive part penetrates out of the vertical needle hole and is positioned with the top of the probe rod through a positioning piece. The inner spring is sleeved outside the upper conductive part and is used for resetting the pressed voltage probe, the lower sampling part is positioned below the probe head, and voltage sampling teeth are respectively arranged on the lower sampling part close to the bottoms of two transverse ends of the lower sampling part. The utility model has the advantages that the sampling stress is uniform, and the current transmission effect is good.

The present invention discloses a laying equipment, including a movable bracket, a piston cylinder, a material distribution cylinder and a tongue; the material distribution cylinder, the tongue and the excavation cone head at the front end of the material distribution cylinder are driven by the piston cylinder to realize the continuous operation of excavation, material discharge and burial. The equipment does not require manual digging, saves manpower and greatly improves efficiency. When laying the node instrument, the process of excavation first and then placement will not put pressure on the node instrument, effectively reducing the risk of the node instrument being damaged. In addition, the equipment is powered by the piston cylinder and realizes the entire laying operation. It has a simple structure, no electrical control failure, and reduces mechanical failure. It can adapt to a variety of construction environments, improve the stability of construction, and is more convenient to maintain.

The present invention relates to the field of automatic control technology, specifically a method and system for automatically controlling the cutting parameters of a shield machine based on geological parameters, comprising the following steps: collecting rock physical property data including density, porosity, and compressive strength, combining cutter head speed regulation and propulsion force adjustment, measuring the stress distribution and torque of the contact point, recording the force field change, and establishing initial force field model data. In the present invention, by integrating the data of rock physical properties and the analysis of cutter head behavior, the adaptability of the shield machine under complex geological conditions is improved, and the density, porosity, and compressive strength are monitored in real time. Combined with the dynamic data of stress distribution and torque, the shield machine can build an accurate force field model based on the current geological conditions, allowing for a more detailed nonlinear analysis of the dynamic reaction force of the cutter head, accurately adjusting the cutter head speed, torque, and propulsion force, and optimizing the cutting parameters. This adaptive adjustment strategy reduces mechanical failures caused by geological variations.

The invention discloses a wear-resistant coating for a bearing and a preparation method and application thereof.The wear-resistant coating at least comprises polyamide-imide resin powder containing hydrophobic groups, a lubricating phase and a modified reinforcing phase, and the modified reinforcing phase comprises a modified fibrous reinforcing phase and a modified powdery reinforcing phase; the modified fibrous reinforced phase is prepared by degumming, etching and treating a fibrous reinforced phase with a coupling agent, and the modified powdery reinforced phase is prepared by carrying out surface pretreatment and acidizing treatment on a powdery reinforced phase. Compared with a conventional polyamideimide resin wear-resistant material, under the combined action of the polyamideimide resin powder containing hydrophobic groups, the lubricating phase and the modified reinforcing phase, the coating has lower water absorption, better self-lubricating property and higher bearing capacity, and can be widely applied to manufacturing of bearings; not only can the use requirement of a high-humidity environment be met, but also mechanical faults can be obviously reduced, so that the service life of the bearing is longer.

The present invention discloses a bamboo strip feeder, which belongs to the technical field related to bamboo winding, wherein a feed hopper, a transmission component and a vacuum adsorption component are correspondingly arranged, and the structure of the feed hopper and the transmission belt and the relative position between the two are preferably arranged, so that the rectangular slit on the feed hopper can be directly opposite to the transmission belt below it, and the accurate feeding and adsorption of a single bamboo strip piece on the transmission belt can be achieved each time, so that the bamboo strips can be accurately fed along the length direction thereof through the corresponding conveying of the transmission belt. The bamboo strip feeder of the present invention has a simple structure, is easy to control, and is convenient to overhaul the equipment. It can accurately realize the continuous feeding of bamboo strips, reduce the splitting, breaking, falling and damage of bamboo strips during the feeding process, save the raw material cost of bamboo strip curtain production, reduce the mechanical failure of the feeder, ensure the continuity and stability of bamboo strip feeding, and has good application prospects and promotion value.