303results about How to "Avoid crush damage" patented technology

The invention relates to a bending machine for a steel structure metal pipe fitting. The bending machine comprises a supporting frame, a bending device and a clamping device, the supporting frame is of a U-shaped structure, the bending device is installed above the supporting frame, the clamping device is arranged below the bending device, and the clamping device is installed on the supporting frame. The bending machine for the steel structure metal pipe fitting can solve the problem that when an existing bending machine for a metal pipe fitting bends the metal pipe fitting, graded extrusion bending of the metal pipe fitting cannot be achieved, so that a straight pipe poor in bendability is prone to cracking and even the problem of breaking occurs during bending, the qualified rate of a finished bent pipe is affected, and the problem that when the existing bending machine clamps and fixes the metal pipe fitting, the clamping mechanism cannot be correspondingly adjusted along with position change of pipe fitting deformation, damage to a formed bent pipe is caused, the quality of the formed bent pipe is affected, metal pipe fittings with different diameters cannot be clamped and fixed, the formed bent pipe is unique in shape and single in diameter, and the use range is limited are solved.

The invention relates to a centering device for hoisting a shell of a reactor core of a high-temperature gas cooled reactor. The device comprises a top centering caging device and a bottom centering caging device. The top centering caging device is fixed on a primary flange of a reactor pressure vessel and the bottom centering caging device is fixed on a radial rib plate of the shell of reactor core in a supporting manner. While the shell of the reactor core is hoisted into the reactor pressure vessel, the top centering caging device can ensure that the outer wall of the shell of reactor core and the inner wall of the primary flange of the reactor pressure vessel can be within a minimum safe distance, and a bracket of the shell of reactor core and the inner wall of the reactor pressure vessel can be within a minimum safe distance. The bottom centering caging device adopts a bearing rolling structure, so that sliding friction and impact between the inner wall of the reactor pressure vessel and the shell of reactor core during hoisting can be prevented. All of the centering devices can be removed after finishing the hoisting of the shell of the reactor core. The novel centering device provided by the invention provides the safe and reliable guarantee for the large commercial high-temperature gas cooled reactor hoisting process.

The invention relates to the field of automobiles and provides an impact protection structure for a battery pack and an automobile. The impact protection structure comprises a battery pack storage space used for placing a battery pack and two longitudinal protection beams located on two outer sides of the battery pack storage space in the transverse direction, wherein the longitudinal protection beams extend in the longitudinal direction of the battery pack storage space and exceed the longitudinal outer end of the battery pack storage space; a primary anti-collision mechanism located on the outer side of the longitudinal outer end of the battery pack storage space is mounted on the longitudinal protection beams; a secondary anti-collision mechanism located between the primary anti-collision mechanism and the battery pack storage space is further mounted on the longitudinal protection beams. The automobile comprises the impact protection structure for the battery pack. The impact protection structure for the battery pack can better absorb energy after being collided to better protect the battery pack and to effectively reduce breakage of the battery pack, caused by squeezing deformation, or the probability of squeezing to damage peripheral components.

The invention relates to the technical field of wafer processing equipment, in particular to automatic film pasting equipment for the surface of a semiconductor wafer, which can effectively save the physical strength and time during manual film pasting operation and improve the film pasting work efficiency by performing automatic film pasting treatment on a semiconductor wafer; meanwhile, the bubble removal effect between a film and the wafer is improved, the bubble residuals are avoided, and the effect is effectively improved. According to the wafer protection device, the stress intensity ofthe wafer is monitored in real time, so that the wafer can be conveniently protected, the wafer is prevented from being extruded and damaged, and the practicability and reliability are improved; the equipment comprises a base, a circular adsorption bin, a rubber pad and a first arc-shaped plate; a transverse pushing device is arranged at the top of the base, a pressure detection device is arrangedon the left side of the transverse pushing device, the circular adsorption bin is installed on the pressure detection device, and the rubber pad is installed at the top of the circular adsorption bin; multiple groups of conical holes are uniformly formed in the outer side of the top of the rubber pad; and the bottoms of the multiple sets of conical holes communicate with the interior of the circular adsorption bin.

The invention discloses a lower limb spasm mode comprehensive rehabilitation device based on kinesitherapy. The lower limb spasm mode comprehensive rehabilitation device comprises shank protecting equipment, planta pedis protecting equipment and an angle adjusting mechanism for adjusting the included angle between the shank protecting equipment and the planta pedis protecting equipment, the angleadjusting mechanism comprises a drawing adjusting mechanism and an enstrophe/exstrophy adjusting mechanism, and the drawing adjusting mechanism and the enstrophe/exstrophy adjusting mechanism jointlydrive ankle joints of a patient to conduct motion in the four directions of plantar flexion, dorsiflexion, enstrophe and exstrophy. The lower limb spasm mode comprehensive rehabilitation device further comprises electrode patches and an electric heating heat-preservation layer, and thus affected limbs can be subjected to muscle electrical stimulation therapy and thermal therapy. According to the treatment demands of the patients, the three device bodies can be separately used or mutually combined to be used, and personalized treatment can be achieved. After being mutually combined, three treatment methods are synergistic, the treatment effect can be improved to the greatest extent, the effective rate of preventing and treating spasm is increased, the illness condition is relieved in the shortest time, and the treating strength and effect which cannot be achieved when a rehabilitation therapist conducts drawing hand or when the three treatments modes are separately used are provided.

The invention relates to a transfer mechanism of a vehicle frame. The transfer mechanism includes a base and a parallelogram swing mechanism arranged on the base; the parallelogram swing mechanism includes two swing rods which are arranged in parallel; one of the swing rods is driven by an oil cylinder; a connection rod is connected between the two swing rods; the upper end of each swing rod is provided with a support block, the support block is embedded in an electromagnet, a pressure sensor is arranged on a support surface of the support block, the pressure sensor is connected to a controller of the oil cylinder; and the controller controls the drive speed of the oil cylinder according to an induction signal of the pressure sensor.

The invention discloses a cover plate glass platinum channel thermocouple device and a manufacturing method thereof. A thermocouple is extended and straightened and then is subjected to double-layer cladding, so the fact that the surface of the thermocouple is not corroded by harmful foreign matters is guaranteed, bending and distortion of the thermocouple in the cladding process can be effectively avoided, and the strength reduction of the thermocouple caused by bending and distortion of the thermocouple which is collided by external force is avoided; a mould with the structure the same as that of the cladded thermocouple is put into a thermocouple mounting hole, the lower half part in the thermocouple mounting hole is poured, and the mould is taken out after the lower half part pouring layer is coagulated; the cladded thermocouple is put on the lower half pouring layer in the thermocouple mounting hole, so the fact that the thermocouple is not damaged by extrusion is guaranteed, and the bending and distortion of the thermocouple in the pouring process is avoided; the cover plate glass platinum channel thermocouple device is fixed, stable and insusceptible to deformation through once pouring and fixing, and the extrusion force, generated by thermal expansion, of the platinum channel is counteracted by the cladding layer cladding the thermocouple.

The invention provides a linear bearing, aiming at solving the problem that the linear bearings in the prior art always stop working due to friction existing among balls. The linear bearing comprises an inner ring, a retainer and an outer ring which are sleeved together from inside to outside in sequence. The linear bearing also comprises a plurality of balls arranged on the retainer in a rolling manner, wherein the balls are in contact with the inner ring and the outer ring and are arranged at intervals. The linear bearing has the following beneficial effects that the balls arranged closely in the prior art are dispersed, so that the balls are separated reasonably and effectively, the independent operation capacity of each ball is increased, the operation of the linear bearing is not affected, and the service life of the linear bearing is simultaneously prolonged. Therefore, the linear bearing has good practicability.

The invention discloses a sugarcane dissection device and belongs to the field of food processing machineries. In specific, a roller is adopted for feeding, a photoelectric sensor is utilized to measure the length of a nodal bud, and a cutter automatically adjusts the spaces to cut off a sugarcane to reasonably cut the sugarcane into sections; and a photoelectronic device has a plurality of modes and can precisely cut the sugarcane with different colors and different states into sections after being mounted with a light-projector and an optical receiver with different colors. The sugarcane dissection device has the advantages of high efficiency and precision and low noise during working. According to the sugarcane sectioned by the sugarcane dissection device, the nodal bud and pulp are separated and placed separately, the pulp is not damaged due to extrusion, is attractive in appearance, excellent in taste and convenient to eat and utilize, and the nodal bud can be conveniently planted.

The invention relates to the technical field of transfer equipment, in particular to wooden cabinet transfer equipment. The wooden cabinet transfer equipment comprises a support frame, a moving assembly, a lifting plate, a clamping assembly and a lifting assembly. Lead screws are driven by corresponding first motors to rotate, a nut moves on the lead screws, a connecting plate is driven by the nutto move in the direction of the lead screws, so as to drive two clamping plates to move, the clamping plates at two ends of the lifting plate are driven by the two first motors to correspondingly move, so as to clamp a wooden cabinet, and the two first motors are used for driving, so that accurate control for clamping operation of the wooden cabinet is increased, control for the clamping force can be improved, the wooden cabinet is clamped more firmly by the wooden cabinet transfer equipment, the safety of subsequent transfer operation is improved, and the wooden cabinet can be prevented frombeing extruded and damaged in the operation process.

The invention relates to a crawler-type harvester for cyperus esculentus. According to the technical scheme, a soil crushing and feeding device driven by an engine, a lifting and conveying device, anupper layer vibrating screen, an auger-type soil throwing and crushing device, a lower layer vibrating screen, a horizontal conveying vibrating screen and a material receiving and lifting mechanism are arranged on a frame; a feeding end of the soil crushing and feeding device is connected with a feeding end of the lifting and conveying device; a discharge end of the lifting and conveying device isconnected with a feeding end of the upper layer vibrating screen; a discharge end of the lower layer vibrating screen is connected with a feeding end of the horizontal conveying vibrating screen; a discharge end of the horizontal conveying vibrating screen is connected with a feeding hole of the material receiving and lifting mechanism; a discharge hole of the material receiving and lifting mechanism is connected with a feeding hole of the upper part of a harvesting box; and a travelling mechanism is a travelling crawler arranged at two sides of a chassis. The crawler-type harvester has a wide application range, integrates multiple functions of excavating and soil crushing, root crushing, separating, screening and recycling, is suitable for high-efficiency harvesting of the cyperus esculentus, is easy to move, and has a great popularization prospect.

The invention discloses a surface treatment method for a power transmission shaft of a speed reducer and a coating, and relates to the technical field of material surface treatment. The method comprises the steps: a to-be-sprayed area on the surface of the power transmission shaft of the speed reducer is machined to form a groove; then, the surface in the groove is activated and roughened througha sand blasting method; and then, a wear-resisting and friction-reducing coating is formed in the groove through direct spraying, wherein the speed reducer power transmission shaft is an input shaft or an output shaft. The groove is formed in the surface of the power transmission shaft of the speed reducer, the groove is used for restraining the coating deposited in the groove subsequently, and the groove structure can further prevent the coating from being extruded and damaged when the coating is subjected to grinding machining and oil seal sealing is installed in an interference mode in theaxial direction. According to the surface treatment method, the wear-resistant and friction-reducing coating can be formed through direct spraying in the groove and a bonding layer does not need to bearranged; an oxide skin of the surface to be sprayed is removed through surface sand blasting pretreatment so as to improve the surface activity and the surface roughness, and therefore, the bondingstrength between the coating and the groove is improved.

The invention discloses a foldable steel dam bottom shaft watertight structure in the technical field of steel dam gates. The foldable steel dam bottom shaft watertight structure includes a bottom shaft fixed at the bottom of a gate leaf, wherein the bottom shaft is fixed on a concrete foundation through a hinged support; a water sealing element is arranged between the gate leaf and the concrete foundation; the water sealing element includes link plate assemblies corresponding to the two ends of the gate leaf; the two link plate assemblies are connected through a rubber band; the upper end of the rubber band is hermetically connected with the gate leaf, and the lower end of the rubber band is hermetically connected with the concrete foundation; the two ends of the rubber band extend out of the link plate assemblies; and each link plate assembly includes a plurality of link plates that are sequentially hinged. The rubber band can be folded and sealed at will and can be reliably supported by adopting the link plate assemblies at the two ends thereof, as a result, the two ends of the rubber band can be permanently attached onto the gate wall during the rotation of the gate leaf, and water leakage is avoided; the device is satisfactorily sealed and highly reliable to use, and has a simple structure; and the foldable steel dam bottom shaft watertight structure adopts the link plates for sealing by changing the functions of the link plates, so as to achieve an unexpected effect.

The invention discloses a self-propelled pineapple harvesting machine. The self-propelled pineapple harvesting machine comprises a walking mechanism, a picking mechanism and a collecting mechanism; the picking mechanism comprises a push plate, a side baffle and a lifter; the side baffle is used for controlling the direction of fruits and stems entering the picking mechanism, and the push plate moves in the preset direction and is matched with the side baffle to separate the fruits from the stems; and the lifter is used for changing the height of the picking mechanism to be matched with pineapple plants with different plant heights. Picked pineapples are conveyed into a collecting frame through a conveying belt, and multiple buffer plates are arranged in the frame to prevent injury caused by mutual extrusion. Tires with specific lines are used on the walking mechanism, and the machine is effectively prevented from being caught in a farmland. The self-propelled pineapple harvesting machine does not depend on a microcomputer and related electronic equipment, and is high in reliability and low in maintenance cost. The self-propelled pineapple harvesting machine is high in mechanizationdegree, convenient to operate, low in cost and high in picking efficiency, and the time and labor are saved.

The invention relates to the technical field of robots, and discloses a carrying industrial robot. The carrying industrial robot comprises a rail and a base; an electric-driven guide wheel is arranged at the bottom of the base, and is movably sleeved with the rail; and a controller is arranged in an equipment box at the middle part of the bottom end of the base. In the carrying industrial robot, a second motor is started to drive two clamping jaws to relatively move to clamp objects; when the clamped objects contain ferrous magnetic absorption materials, a power supply device is used for supplying electricity to electromagnets in the clamping jaws, and magnetism of the electromagnets is used for absorbing the objects to be clamped; meanwhile, the device can drive a sucker to descend through startup of a hydraulic rod, and a sucker is used for vacuumizing absorption of the tops of the objects, so that the object clamping stability is improved; and the device is provided with multiple clamping modes, improves the object carrying range and the clamping stability, and prevents the damage condition of the objects due to loose falling of the objects.

The invention discloses a high-strength composite stranded wire with a trapezoidal section and a one-step preparation method thereof. The high-strength composite stranded wire is formed by stranding at least one composite core wire, and is characterized in that the composite core wire consists of a cylindrical core wire, and a plurality of trapezoidal stranded wires surrounding the cylindrical core wire and having trapezoidal sections; the surface of each trapezoidal stranded wire is wound with a layer of unidirectional or bidirectional fiber; the trapezoidal stranded wires surround the cylindrical core wire for stranding, with the stranding angle of 6-12 degrees and the pitch of 120-180mm; the cylindrical core wire is formed by sticking a plurality of carbon fibers through a cylindrical hole mould; and each trapezoidal stranded wire is formed by sticking a plurality of carbon fibers through a trapezoidal hole mould. The high-strength composite stranded wire has the advantages of large effective section area and high bearing capability.

The invention discloses a full-automatic razor three-layer bit assembling production line which comprises an assembling base plate, a base, a fixed limit plate, a movable limit plate, an adjusting mechanism, two assembling grooves, razor workpieces, a detection device, clamping grooves, clamping holes, cushion devices, side clamping adjusting devices and popping devices. The base is fixed onto theassembling base plate, the fixed limit plate is fixedly connected with one side of the base, the movable limit plate is arranged on the other side of the base, the adjusting mechanism is fixedly connected with the side, which is far away from the base, of the movable limit plate, the two assembling grooves are symmetrically formed in the base, the razor workpieces are arranged in the assembling grooves, the detection device is fixed to the top of the movable limit plate, and the clamping grooves are formed in the base. The full-automatic razor three-layer bit assembling production line has the advantages that the machined workpieces can be quickly mounted and taken out from the base for arranging the workpieces when razor bits are assembled and produced, and the machining quality of the workpieces can be guaranteed.