45results about How to "Avoid impact collision" patented technology

The invention relates to a method and a device for lifting weights on the top floor of a super high-rise building, wherein the device comprises a stand, a fixed mast, a movable mast, a ball joint, a guy cable combined disk, a hoisting block, an amplitude-change block, a stabilizing bar, a guy cable and a prestressed drag line; the stabilizing bar, the stand, the guy cable combined disk and the fixed mast are utilized to form a stable support structure, and meanwhile, prestressing force applies to the guy cable and the prestressed drag line; when weights are lifted, the stabilizing bar is in a state with small stress or no stress and generates sufficient stability and safeguard; and a guideline resists transverse wind loads. The invention has a simple process method, and the device has reasonable structure, simple and convenient operation, small overall weight, flexible movement, convenient assembly, disassembly, entrance and exit, safe operation, low cost and short construction period, and can realize the integral lifting of overweight objects on the top floor of the super high-rise building, overcome the difficulty of the integral lifting of the overweight objects on the top floor of the super high-rise building which can not be finished by traditional construction elevators, tower cranes and traveling cranes, solve the difficult problem puzzling the technical field of construction and installation for a long time, and realize standardized and mass large-scale production.

The invention discloses a hydraulic system for buffering the stroke tail section of a garbage can hopper. The hydraulic system comprises an oil tank, a hydraulic oil pump, a three-position four-way electromagnetic reversing valve, a superposition type hydraulic control one-way valve, a superposition type one-way throttling valve, a first two-position two-way electromagnetic reversing valve, a second two-position two-way electromagnetic reversing valve, a first hopper oil cylinder, a second hopper oil cylinder, an ascending tail section induction switch and a descending tail section induction switch. According to the hydraulic system, the speed of the ascending and descending processes is ensured, and the working efficiency is guaranteed; and meanwhile, the speed of the ascending tail section and the descending tail section is reduced, and the phenomena that collision impact of the hopper on the ground is caused and a material box is jacked up and pulled forwards are avoided. The hydraulic system is reasonable in design and high in practicability.

The invention discloses a locatable high-strength wear-resistant and super-tough hard box. The locatable high-strength wear-resistant and super-tough hard box comprises a box body, rolling wheel assemblies and telescopic pull rods, wherein the box body is composed of a bottom box and a box cover, the side wall of one side of the bottom box is rotatably connected with the side wall of the corresponding side of the box cover through a plurality of hinges, the side wall, opposite to the hinges, of the bottom box is connected with the side wall of the corresponding side of the box cover in an opening-closing manner through a plurality of coded locks, one rolling wheel assembly is fixedly connected to each of four corners of the bottom of the bottom box, the telescopic pull rods are mounted on the rear wall of the bottom box, a first wear-resistant wrap corners wraps each of the four connecting parts of the rear wall and the peripheral side walls of the bottom box, an external storage bag is arranged on the front of the outer side of the box cover, clasping devices are symmetrically arranged at the two sides of the upper end of the box body, and a box sleeve containing groove is arranged at the lower end of the bottom box. The locatable high-strength wear-resistant and super-tough hard box is strong in functionality, and has the advantages of light weight, high temperature resistance, scraping and wearing resistance, aging resistance, electricity and heat conduction, corrosion resistance, large elasticity, high compression strength, high toughness and high shock resistance.

The invention discloses a cargo air pressure fixing system in cold-chain logistics pipeline transportation. The cargo air pressure fixing system is arranged in a cold-chain conveyor; the cold-chain conveyor runs in a cold-chain transmission pipeline; the cold-chain transmission pipeline is configured to be a guide channel of the cold-chain conveyer; a cold-chain cargo compartment is arranged in the cold-chain conveyer; a cold-chain cargo is loaded in the cold-chain cargo compartment; the cargo air pressure fixing system is used for fixing the cold-chain cargo in the cold-chain cargo compartment; the cargo air pressure fixing system comprises an axial cold-chain cargo fixing device, a circumferential cold-chain cargo air pressure fixing device, an end pressing device and a selectively-configurable axial cold-chain cargo partition device; the limitation of a fluid pipeline is broken through the system, so that the pipeline transmission of the cold-chain cargo is realized, the comprehensive protection in the axial direction and the circumferential direction of the cold-chain cargo in the pipeline transportation are further realized, the collision damage is avoided, the flexible partition can be carried out according to the size, the type and the like of the cargos, the cargo capacity is increased, and the space utilization rate and the transportation efficiency are improved.

The invention provides a combined connection device for preventing a piston from rotating in the radial direction and moving in the axial direction. The combined connection device mainly comprises a cylinder barrel, a piston rod, a locking nut, an elastic gasket, an elastic check ring, a sealing ring, a buffer sleeve and the piston. The piston is formed by combining a piston disc A and a piston disc B. The combined connection device is characterized in that the piston is prevented from rotating in the radial direction and moving in the axial direction by means of a shaft shoulder of the piston rod, the locking nut, the elastic gasket with a protrusion, and torsional deformation of the elastic gasket. The weight of the piston is reduced without loss of strength through the hollow cylindrical piston discs provided with supporting columns; the elastic gasket, the protrusion on the elastic gasket, the shaft shoulder of the piston rod and the locking nut prevent the piston from rotating in the radial direction and moving in the axial direction; and the piston discs are prevented from impacting and colliding with each other through the buffer sleeve between the piston discs.

The invention discloses a wheel active retraction system of an unmanned driving system test platform dummy vehicle. The wheel active retraction system comprises a retraction mechanism, a pneumatic control system and a high-pressure supply mechanism, wherein a force bearing arm, a rocker arm and a middle force bearing shaft in the retraction mechanism form a fixed whole, wheels and the middle forcebearing shaft can rotate around the axis together, the pneumatic control system adjusts telescopic states of the wheels by means of a double-acting cylinder, and the high-pressure supply mechanism inflates the pneumatic control system. According to the wheel active retraction system, wheel telescoping state control can be carried out actively, so that the test platform dummy vehicle has good obstacle crossing driving performance when an unmanned driving system test is conducted, and the height of the test platform dummy vehicle can be reduced when the test platform dummy vehicle collides withother test real vehicles, thereby avoiding direct collision impact and protecting core components of the unmanned driving system.

The invention relates to the technical field of temperature measurement of rotary kilns, and provides a self-driven direct temperature measurement device for a rotary kiln. The self-driven direct temperature measurement device for the rotary kiln comprises a rotary driving motor, a screw rod, a fixed installation base, a thermoelectric couple and a sleeve pipe. The rotary driving motor, the screw rod and the thermoelectric couple are mounted on the fixed installation base, and the fixed installation base is fixed to the side wall of the rotary kiln. The rotary driving motor drives the screw rod to rotate. The sleeve pipe is arranged outside the thermoelectric couple in a sleeving mode and stretches into a temperature measurement through hole formed in the side wall of the rotary kiln. A screw groove in threaded fit with the screw rod is formed in the outer surface of the sleeve pipe. The sleeve pipe is driven by the screw rod to reciprocate periodically in the axial direction of the temperature measurement through hole. According to the self-driven direct temperature measurement device for the rotary kiln, materials entering the temperature measurement through hole are removed automatically through movement of the sleeve pipe, the temperature measurement through hole is prevented from being blocked by material lumps, and thus the service life and temperature measurement precision of the thermoelectric couple are guaranteed.

The invention relates to an intelligent buffer, which comprises an installation base, a connecting skeleton and a buffer body. In the technical key point, a laser range finding controller is arranged on the installation base, is provided with a laser emission window and a laser narrow-band filter receiving window in the direction of an impact working surface of the buffer, comprises a position sensitive detection sensor, a laser emitter and a central processor and is connected with an upper computer or an executive processor. The intelligent buffer is not a simple mechanical structure device; by a control system which consists of the laser range finding controller and software in the laser range finding controller, the intelligent buffer has the capacity of judging work environment and has a better range finding function of preventing using equipment from being impacted to reduce the damage of the using equipment, and control equipment such as a limit switch or a photoelectric range finding switch and the like which is matched with the intelligent buffer is not needed to be arranged near the intelligent buffer, so the defect that the damage reason cannot be found after the ordinary buffer is damaged due to impact is overcome.

The invention belongs to the technical field of hydraulic valves, and discloses a combination flow control valve of a double pump. The combination flow control valve comprises a valve body, a valve element and a control rod. An opening A, an opening B and an opening T are arranged on the valve body. The control rod is located in the valve body and can do axial relative movement relative to the valve body. The valve element is of a disc type structure and is arranged on the control rod in the valve body in a sleeved manner, and the valve element is driven to rotate when the control rod axiallymoves. An arc groove and an auxiliary hole which are communicated through an inner duct are formed in the work end face of the valve element. In the process that the valve element rotates around the control rod, the opening B is communicated with one of the opening A and the opening T through the arc groove and the auxiliary hole, or the opening B, the opening A and the opening T are communicatedat the same time. When the opening B is communicated with the opening A through the arc groove, the opening T and the auxiliary hole keep closed. When the opening B is communicated with the opening Tthrough the arc groove, the opening A and the auxiliary hole keep closed or communicated. The combination flow control valve of the double pump is small in structural size and low in manufacturing cost, and multiple control functions can be achieved at the same time.

The invention relates to a dust integrated house device. The device comprises a dust integrated house body, a retractable driving device, a connecting member, a rotating rod, two switch doors, two guide rails, a dust suction pipe, a dust pump and a controller, the dust integrated house body is located above a production workshop, a retractable driving device is fixed to the dust integrated room body, the inside of the retractable drive device is provided with a telescopic rod, the end of the telescopic rod is fixed to connecting members, the connecting members are connected with rotating rods,each rotating rod is connected to the switch doors, each switch door is slidably fixed in the guide rails, the dust integrated house body is connected with the dust pump, and the controller is electrically connected with the retractable drive device and the dust pump. According to the device, workshop floor space and the production cost of wood products are reduced by arranging the dust integrated house body above the production workshop; when the telescopic rod is extended downward, the two switch doors are driven to be automatically separated outwards, when the telescopic rod is upwardly contracted, the two switch doors are driven to close inward automatically, and no manual operation is required.

The invention belongs to the technical field of metal smelting, and discloses a movable cover vehicle and a treatment method for water-containing flying dust in a steel slag hot disintegration process. The treatment method for the water-containing flying dust in the steel slag hot disintegration process comprises the following steps that 1), the movable cover vehicle is arranged above a hot disintegration pool, steel slag is poured into the hot disintegration pool, and the movable cover vehicle protects the steel slag pouring process; 2), the steel slag poured into the hot disintegration poolis cooled by spraying by using a spraying device; 3), dust removal treatment is carried out on the generated water-containing flying dust; 4), dehydration treatment is carried out on the water-containing flying dust subjected to the dust removal treatment; and 5), gas subjected to the dust removal treatment and the dehydration treatment is exhausted. The treatment method for the water-containing flying dust in the steel slag hot disintegration process can effectively treat the water-containing flying dust in the steel slag hot disintegration process, so that the treated gas can reach emissionstandards.

The invention discloses a concrete mixing device, which comprises a base, a bracket and a water tank. A switch is embedded on the surface of the base, a telescopic rod is fixedly installed on the top end of the base, and a telescopic rod is fixedly installed on the bottom end of the base. There is a support, the bottom of the support is welded with a support seat, the bottom of the support is provided with a discharge port, one side of the discharge port is screwed with a control knob, and the top of the support is provided with a stirring The main body of the device, the inside of the main body of the stirring device is provided with a stirring chamber. The outer wall of the main body of the mixing device is covered with sound-absorbing cotton, which can well reduce the noise pollution generated during the operation of the device and avoid affecting the normal life of the surrounding residents. The inner wall of the main body of the mixing device is covered with a rubber layer, which has the function of buffering concrete impact and anti-corrosion. Corrosion ability, through the installation of positive bearings and counter bearings, the stirring rods and stirring blades on the positive bearings and counter bearings rotate clockwise and counterclockwise, uniformly mix, fully mix the concrete, and improve the quality of the concrete.

The invention provides a high-low voltage prefabricated substation with good protection performance. The high-low voltage prefabricated substation comprises a box body, a power equipment cabinet, a base assembly and three protection assemblies. The base assembly comprises a substrate, a bottom plate and a plurality of first elastic pieces. The substrate is connected with the bottom plate, and thefirst elastic pieces are connected with a side edge wall of the substrate. The power equipment cabinet is arranged on the substrate. The box body covers the bottom plate, and a box wall of the box body abuts against the bottom plate. One end of each first elastic piece is connected with an inner box wall of the box body, and the other end of each first elastic piece is connected with a side edge wall of the substrate. The box body is provided with four side walls, an access door is arranged on one side wall of the box body, and in the other three side walls of the box body, each side wall of the box body is connected with a protection assembly. Each of the protection assemblies comprises a protection plate and a plurality of second elastic pieces, one end of each second elastic piece is connected with the protection plate, and one end of each second elastic piece is connected with one side wall of the box body. According to the transformer substation, the safety protection performanceis improved, and the operation stability of the power equipment cabinet is guaranteed.

The invention discloses a shock-absorbing gentle type automatic casing extracting device, which comprises a pumping bobbin and a cam. The front end is equipped with a shell claw to cooperate with the bottom edge of the cartridge, and the rear end of the pumping tube is close to the upper contour surface of the cam. The lower end of the cam is hinged to the upper end of the first connecting rod, and the lower end of the first connecting rod is connected with the second connecting rod and the third The upper end of the connecting rod is hinged, the lower end of the second connecting rod is hinged with the slider, one end of the slider is connected with one end of the compression spring, the slider is located in the chute of the chute plate, and the chute plate is installed in the direction of the other end of the slider There is a shell template, the other end of the compression spring is connected with the gun body, and the lower end of the third connecting rod is hinged with the gun body. The shock-absorbing and gentle automatic shell extracting device of the present invention can avoid multiple violent collisions, overcome problems such as yielding and fracture of shell extracting parts, and make the shell extracting process relatively stable.

The invention relates to the technical field of temperature measurement of a rotary kiln, and provides a self-driven direct temperature measurement device for a rotary kiln. The device includes a rotary drive motor, a screw rod, a fixed mount, a thermocouple and a sleeve tube; the rotary drive motor, the screw rod and the thermocouple are mounted on the fixed mount, and the fixed mount is fixed on a rotary On the side wall of the kiln; the rotary drive motor drives the screw rod to rotate; the sleeve tube is sleeved on the outside of the thermocouple and extends into the temperature measuring through hole opened on the side wall of the rotary kiln; the The outer surface of the sleeve tube is provided with a spiral groove that matches the thread of the screw rod. Driven by the screw rod, the sleeve tube performs periodic reciprocating motion along the axial direction of the temperature measuring through hole . The invention automatically removes the material entering the temperature measuring through hole through the movement of the sleeve tube, avoiding the blockage of the temperature measuring through hole by material lumps, thereby ensuring the service life and temperature measuring accuracy of the thermocouple.

The invention provides a magnetic workpiece reset structure and method and a magnetic workpiece discharge mechanism. The magnetic workpiece reset structure comprises an arranging groove and a reset part. The reset part is arranged corresponding to one end part of the arranging groove. The magnetic pole direction of a part with magnetism is opposite to the magnetic pole direction of magnetic workpieces. The multiple magnetic workpieces adsorb mutually in sequence on the arranging groove to form a queue. After the queue receives new magnetic workpieces, the end face position of the queue inlet automatically recovers to the position before receiving under the effect of the reset part. The magnetic workpiece discharge mechanism comprises an input structure, a blocking structure and a magnetic workpiece reset structure. According to a magnetic workpiece automatic arranging reset method, the magnetic force effect is formed through the queue of the reset part and the magnetic workpieces, therefore, the queue is driven to move to enable the end face of the queue inlet to recover to the position before the new magnetic workpieces join in the queue. According to the reset part, the position of the head of the magnetic workpiece queue is adjusted automatically through the magnetic force effect.

The invention discloses a temporary storage equipment for single-chip microcomputer processing. The temporary storage equipment structurally comprises a storage device, a supporting rod and a movable base, the middle end of the outer side surface of the storage device is hinged to the top of the supporting rod, and the lower end of the supporting rod is welded to the upper surface of the movable base. Containing grooves are formed by a containing mechanism through partition plates, separation of single-chip microcomputers is improved, separating sheets are extruded through the single-chip microcomputers in the same containing groove, the single-chip microcomputers can pass through, and the single-chip microcomputers in the same containing groove can be contained in a separated manner, so that winding of pins of the single-chip microcomputers is avoided; and through six independent fixing frames and sliding doors, the six containing grooves are opened and closed independently, the single-chip microcomputers are discharged independently through a discharging port, it is ensured that the single-chip microcomputers are taken out orderly, the single-chip microcomputers extrude a buffer plate, a compressed spring plays a buffering role, large collision impact between the single-chip microcomputers and a blocking door in the sliding storage process is avoided, and the single-chip microcomputers are protected.

The invention provides a grinding head device capable of precisely controlling a sensing quantity. The grinding head device comprises an accommodating frame, a movable bracket and a controller; the accommodating frame and the movable bracket are slidingly connected in a first straight direction and a second straight direction; the accommodating frame is provided with a first driving module and a second driving module, connected with the controller, in the first straight direction; and the accommodating frame is provided with a third driving module and a fourth driving module, connected with the controller, in the second straight direction. The grinding head device further comprises a first sensing module and a second sensing module. The grinding head device further comprises a polishing piece and an electric main shaft; the electric main shaft is connected between the surface, far from the accommodating frame, of the movable bracket and the polishing piece; the electric main shaft drives the movable bracket to move; and the controller controls the electric main shaft to stop rotating. The grinding head device can prevent the impact commission of the electric main shaft during polishing of castings to the greatest extent, improves the polishing quality, and effectively protects polishing equipment.

The invention belongs to the technical field of industrial valves, and discloses a safety valve which includes a main valve body, a main valve core, a main valve control rod and a rotating shaft. Themain valve control rod and the rotating shaft are arranged in parallel and are both connected to the main valve body, wherein the main valve control rod can move relatively in an axial direction and is provided with a clamping groove, the main valve core sleeves the rotating shaft and is provided with a shield cover and a guide rail, the guide rail is spirally and axially arranged along the outersurface of a guide sleeve and penetrates through the clamping groove, and through the connection between the guide rail and the clamping groove, the main valve core rotates around the rotating shaft with the axial movement of the main valve control rod, so that the shield cover is driven to carry out open and close control over a main channel between an oil inlet and an oil outlet in a horizontaldirection. According to the safety valve, the main valve core can be prevented from being stuck due to concentricity, the smooth operation of the overflow action is ensured, the protection of a sealing surface is improved, the opening and closing impact is reduced, the service life of the entire safety valve is prolonged, and the work stability is improved.

The invention provides a high and low voltage prefabricated substation with good protection performance, which includes a box body, a power equipment cabinet, a base component and three protection components. The base assembly includes a base plate, a bottom plate and a plurality of first elastic parts. The base plate is connected with the bottom plate, and each first elastic member is connected with the side wall of the base plate. The power equipment cabinet is arranged on the base plate. The box body cover is arranged on the bottom plate, and the box wall of the box body abuts against the bottom plate. One end of each first elastic member is connected to the inner box wall of the box body, and the other end of each first elastic member is connected to the side wall of the base plate. The box body has four side walls, one side wall of the box body is provided with an inspection door, and among the other three side walls of the box body, each side wall of the box body is connected with a protective component. The protective component includes a protective plate and a plurality of second elastic pieces, one end of each second elastic piece is connected with the protective plate, and one end of each second elastic piece is connected with a side wall of the box body. The above-mentioned substation has improved the safety protection performance and guaranteed the operation stability of the power equipment cabinet.

The invention belongs to the technical field of hydraulic valves. The invention discloses a confluence control valve for a double-connected pump, which comprises a valve body, a valve core and a control rod; the valve body is provided with an A port, a B port and a T port; the control rod is located inside the valve body and can be Axial relative movement; the valve core is a disc structure, and is sleeved on the control rod inside the valve body. When the control rod moves axially, it drives the valve core to rotate; arc groove and auxiliary hole; when the spool rotates around the control rod, port B communicates with port A or port T through the arc groove and auxiliary hole or communicates with the three at the same time; port B communicates with port A through the arc groove. When the A port is connected, the T port and the auxiliary hole are kept closed, and when the B port is connected with the T port through the arc groove, the A port and the auxiliary hole are kept closed or connected. The confluence control valve of the double pumps of the present invention not only has small structural volume and low manufacturing cost, but also can realize multiple control functions at the same time.

The invention relates to an active optical cable connector and an active optical cable assembly using the same. The active optical cable connector comprises a connector shell assembly and a photoelectric conversion unit arranged in an inner cavity of the connector shell assembly, wherein a stop structure is arranged in the inner cavity of the connector shell assembly in front of the photoelectric conversion unit; a pressing structure for elastically pressing the photoelectric conversion unit against the stop structure is arranged in the inner cavity of the connector shell assembly behind the photoelectric conversion unit; and the photoelectric conversion unit is elastically pressed in the inner cavity of the connector shell assembly by the pressing structure. According to the connector, the problem that the photoelectric conversion unit cannot be dismantled due to use of mucilage glue is solved; and the photoelectric conversion unit is elastically pressed, and elastic floating force can be provided when the connector is vibrated and the photoelectric conversion unit moves in the inner cavity of the connector shell assembly, so that impact and collision of the photoelectric conversion unit and the connector shell assembly are avoided and the reliability of the connector is improved.

The invention provides a combined connecting device for preventing the radial rotation and axial movement of the piston, which mainly includes a cylinder, a piston rod, a lock nut, an elastic washer, a retaining ring, a sealing ring, a buffer sleeve and a piston. The piston consists of Piston disc A and piston disc B are combined. It is characterized in that the radial rotation and axial movement of the piston are prevented by using the piston rod shaft shoulder, the lock nut, the elastic washer with protrusions, and the torsional deformation of the elastic washer. The invention realizes the weight reduction of the piston without loss of strength through the hollow cylindrical piston disc containing the pillar; through the protrusion on the elastic washer and the circlip, the shaft shoulder of the piston rod and the lock nut, the prevention of the radial direction of the piston is realized. Rotation and axial movement; the buffer sleeve between the piston discs prevents them from colliding with each other.

The invention discloses an aviation cargo pallet damping speed reducer. The speed reducer comprises a fixed seat, a reset spring, a traction spring and a mounting shaft, a clamping plate is installedon the fixing base, an installation groove is formed in the clamping plate, a valve plate is arranged on the inner side of the installation groove, a reset spring is installed at the left end of the valve plate, a transverse shaft is installed on a speed reducing wheel, the speed reducing wheel is connected with a speed reducing plate through the transverse shaft, and speed reducing strips are also arranged on the surface of the speed reducing wheel. When a pallet performs accelerated motion and collides with the speed reducing plate, a magnet on the pallet and a magnet on an adjusting block quickly get close to each other and repel each other under the action of homopolar magnetic poles, the adjusting block slides and pulls a driving rod, the driving rod drives the speed reduction plate to brake the speed reducing wheel, so the speed reducing wheel conducts speed reduction work on the fast moving pallet through cooperation of the speed reducing strips, and impact collision is avoided.

The invention relates to a lever counter weight type gravity compensation device used for one-dimension deployed antenna ground deployment tests of spacecrafts such as satellites. The lever counter weight type gravity compensation device comprises a supporting assembly, a rotating plate assembly and a bottom plate assembly; the supporting assembly is composed of an adaptor, a rotating shaft, a plastic roller, a roller support, a pressure sensor and the like; the rotating plate assembly is composed of a rotating plate, a counter weight, rotating supports, a damper gear, an intermittent gear, bearings, a key and the like; the bottom plate assembly is composed of a bottom plate, bottom plate locking levers, sucked type electromagnets, a limiting pin, bottom plate guide rods and the like. When an antenna is deployed, the compensation device is in a sucked and combined state, and the sucked type electromagnets are powered on and sucked and combined with the rotating plate; after the antenna is deployed, the sucked type electromagnets are powered off, the rotating plate can rotate stably under the functions of the counter weight, the intermittent gear, the damper gear and the like, and finally the rotating plate supports the antenna to compensate the gravity. By means of the lever counter weight type gravity compensation device, the problem of gravity compensation of space antenna ground deployment tests is solved, the structure of the device is simple, the operation is convenient, the compensation force is adjustable, and no impact exists.