123 results about "Impact structure" patented technology

Improved impact proof capability of a silicon microphone sensing element is achieved with a stopper element that limits the maximum vibration of moveable parts. The stopper has a lower anchor portion and upper finger portion that is elevated a certain distance above the diaphragm and overhangs the outer edges of the perforated plates. The stopper is formed on a stack consisting of a lower substrate, a middle dielectric layer, and an upper membrane layer. There is a back hole in the substrate and an air gap in the dielectric layer to allow sound to impinge on the diaphragm. The number of fingers and composition of the stopper is variable. Optionally, the stopper has a center support design and is formed on a center anchor within an opening in the diaphragm. An upper finger region overhangs the diaphragm near the center opening and thereby prevents breakage due to large vibrations

The invention relates to one method and device to process disable by contact impact on circuit board, which comprises the following steps: fixing circuit board; heating on circuit board; adopting impact structure on circuit board for contact impact; adopting blower and collecting element parts and welding; after cooling processing the sort of circuit board and elements. The device comprises impact lever, compression spring, circuit board fix device, protruding wheel, guide rail, spring net band, and hot wind entrance hole.

This invention relates to an impact energy absorbing structure for a cabin of an automotive vehicle. The impact energy absorbing structure is provided with a trim member (10) covering an inboard side of a structural member, which constitutes the cabin of the automotive vehicle. An impact absorbing member is interposed between the inboard side of the structural member and the trim member (10), so that impact energy directed from a surface of the trim member (10) toward the structural member can be absorbed. When an occupant of the cabin is about to hit the structural member, impact energy is damped so that the occupant can be protected. The structural member includes a pillar (1) or the like, which constitutes the cabin of the automotive vehicle. The trim member (10) is arranged to cover an inboard side of the pillar (1) or the like. Resin-made ribs (11) or the like can be mentioned as the impact absorbing member. It is possible to design the structure so that impact energy directed from the surface of the trim member (10) toward the pillar (1) or the like can be absorbed through deformation or destruction of these resin-made ribs (11).

A device for imitating sea bore in a hydraulic model test is characterized by comprising a quick lifting gate device, an upper impounding reservoir section, a sea bore section and a lower impounding reservoir section which are sequentially connected, wherein the quick lifting gate device comprises a gate, a gate groove, a pulley, a weight, a weight supporting platform, a winch and a gate groove limiting stopper. The gate, the pulley and the weight are connected through steel wires. The gate groove limiting stopper prevents the gate from sliding out of the gate groove when the gate ascends to the highest position. The weight supporting platform is used for supporting the weight in a water filling preparation stage. The winch is used for lifting the weight in a test preparation stage. The invention belongs to the field of hydraulic engineering model tests. The invention provides the device and the method to imitate the sea bore in the hydraulic model test. According to the method, dynamic water pressure of a sea bore impact structure can be measured, and the method and the device have the advantages of being reliable in method, precise in measurement and good in repeatability.

Improved impact proof capability of a silicon microphone sensing element is achieved with a stopper element that limits the maximum vibration of moveable parts. The stopper has a lower anchor portion and upper finger portion that is elevated a certain distance above the diaphragm and overhangs the outer edges of the perforated plates. The stopper is formed on a stack consisting of a lower substrate, a middle dielectric layer, and an upper membrane layer. There is a back hole in the substrate and an air gap in the dielectric layer to allow sound to impinge on the diaphragm. The number of fingers and composition of the stopper is variable. Optionally, the stopper has a center support design and is formed on a center anchor within an opening in the diaphragm. An upper finger region overhangs the diaphragm near the center opening and thereby prevents breakage due to large vibrations.

Methods and apparatus are provided for a fan containment system for a gas turbine engine having a plurality of fan blades includes a cylindrical casing with an inner surface surrounding the plurality of fan blades and an opposing outer surface; a first layer of fabric material positioned on the exterior surface of the cylindrical casing; and a shear thickening fluid impregnated within the first layer of fabric material.

The invention relates to one method and device to process disable by contact impact on circuit board, which comprises the following steps: adopting u shape tank structure or card tank structure spring fix device circuit board; heating circuit board; through point or bar or plane impact structure to exert non-contact impact on circuit board; scripting, isolating, collection elements and welding; after cooling sorting the circuit board and elements. The invention device comprises the following parts: impact lever, point or bar or plane impact structure, compression spring, circuit board spring fix device, blower device and spring network.

The invention relates to etalon temperature controlling apparatus for lasers, comprising a heat sink (1), a controlling element (2), a controlled unit (3), a sensor (4) and a temperature controlling circuit (5). The controlled unit (3) is made from heat conducting materials, an etalon (10) and the sensor (4) are equipped therein; the controlling element (2) is a semiconductor cooling chip provided with a light-passing hole in the center, the heat-absorbing surface of the semiconductor cooling chip has close contact with one surface of the controlled unit (3), and the heat-radiating surface of the semiconductor cooling chip has close contact with one surface of the heat sink; both the heat sink (1) and the controlled unit (3) are provided with light-passing holes in the center, which are coincident with the hole in the controlling element (2). The etalon temperature controlling apparatus has the advantages of impact structure, wide control scope, high precision in temperature controlling, easy realization in rapid temperature control, and reliable operation in a long time.

The invention discloses a dual composite high strength and toughness block amorphous alloy and preparation method thereof. Adscititious continuous fibers and endogenous wide phases are distributed in an amorphous alloy matrix, wherein the matrix is a zirconium base or a magnesium base and comprises the chemical components of Zr-Ti-Nb-Cu-Ni-Be, (Mg0.65Cu0.10Ni0.10Re0.10Zn0.05)100-xZrx and Mg-Cu-Y-Zn. The preparation method adopts a melt pressurizing penetration casting method and comprises the following steps of: directly injecting a liquid metal glass master alloy into a continuous tungsten wide phase preform; directly maintaining the temperature to separate out a spherical endogenous phase without a solidification process; and performing fast quenching forming to obtain a high strength and toughness amorphous composite material of which the matrix contains both the adscititious continuous fibers and the endogenous spherical wide phases. According to the invention, the dual composite high strength and toughness block amorphous alloy, which has an impact structure, high performance, the adscititious continuous fibers and the endogenous wide phases, can be successfully prepared.

The invention discloses a flexible energy-absorbing anti-impact structure which has high protective capability and a reasonable structure and can protect both the impacted object and the impacting object. The anti-impact structure comprises an outer steel enclosure (1) and an inner steel enclosure (2), a plurality of flexible combined energy-absorbing anti-impact rings (4) are arranged between the inner steel enclosure (2) and the outer steel enclosure (1), the outer steel enclosure (1) is provided with an impact-receiving angle (3), the angle of which ranges from 25 degrees to 170 degrees, and the outer steel enclosure (1) is provided with positioners for reducing the vertical displacement of the outer steel enclosure (1). The whole anti-impact structure can first shift when impact occurs, the viscoelastic anti-impact rings then absorb a great deal of impact energy, and generate a lateral thrust on the impacting object at the same time, so that partial impact energy can be converted into the turning movement energy of the impacting object, and thereby the pier, the anti-impact structure and the moving ship can be prevented from being damaged or the damage of the pier, the anti-impact structure and the moving ship can be reduced to the max.

A threaded union nut is disclosed which includes a body, a threaded opening formed in the body and a web including a plurality of impact openings that are radially offset from a centerline of the threaded opening, wherein the impact openings are adapted to be engaged by a device so as to rotate the threaded union nut. A sliding hammer is also disclosed which includes a guide rod, a structural member coupled to the guide rod and a hammer having an internal bore adapted to receive the guide rod therein. The sliding hammer further includes a flexible cable and a swing handle, wherein the cable is coupled to the hammer and to the swing handle. The hammer is adapted to strike the structural member.

The invention discloses a monitoring method and a system for an on-orbit spacecraft suffering from space debris collision. The monitoring method comprises the following steps that corresponding target ultrasonic signals are obtained through a plurality of ultrasonic sensors, and then the corresponding target ultrasonic signals are subjected to amplification and gain treatment and ultrasonic monitoring data is obtained; when any of the ultrasonic monitoring data is judged to exceed a presupposition trigger threshold, specific ultrasonic monitoring data is gathered and stored; the specific ultrasonic monitoring data is the ultrasonic monitoring data of all the ultrasonic sensors in the presupposition trigger duration; when all the ultrasonic monitoring data is judged not to reach the presupposition trigger threshold, the stored specific ultrasonic monitoring data is read; and analysis and calculation are conducted according to the specific ultrasonic monitoring data, then the collision position and the collision strength of the on-orbit spacecraft are obtained. According to the method and the system for the on-orbit spacecraft suffering from the space debris collision, acoustic emission monitoring and location produced by a space debris collision structure are achieved through a passive ultrasonic monitoring form.

The invention relates to a microbiological aerosol concentration sampler and a concentration sampling method. The microbiological aerosol concentration sampler is characterized by comprising a concentrator having a virtual impact structure, the concentrator is connected with a total flow air channel, a main flow air channel and a small flow air channel, the main flow air channel is provided with a main flow sensor and a main flow sampling pump sequentially, an output end of the small flow air channel is connected with a liquid impact type microbiological sampler which is connected with a drying bottle through an air channel, the drying bottle is connected with the small flow sampling pump through an air channel, a small flow sensor and a small flow regulating valve are arranged on the air channel between the drying bottle and the small flow sampling pump sequentially, the main flow sensor and the small flow sensor are connected with a digital signal processor electrically, and the digital signal processor is electrically connected with a man-machine interface and the main flow sampling pump. The microbiological aerosol concentration sampler is high in sampling efficiency and capable of preventing damage to microbial activity by long-time sampling, avoiding pollution regeneration and improving detection rate of low-concentration microbiological aerosol and can be widely used for sampling of the indoor and outdoor microbiological aerosol.

The invention relates to a rotary impact type pneumatic roofbolter. The roofbolter is a drilling tool in a coal mine roadway bolt supporting work. Currently, in the coal mine roadway bolt supporting work, the most common roofbolter is the rotary type pneumatic roofbolter; the current rotary type pneumatic roofbolter only can support a roadway with a hardness f of less than 10 because of uncertainty of the coal mine roadway environment. In order to support the roadway with the hardness f of more than 10, a pneumatic impact structure is integrated into the current rotary type pneumatic roofbolter; and the new rotary impact type pneumatic roofbolter not only can support the tougher roadway, but also can increase a support speed.

The invention discloses a power-losing trigger device. The power-losing trigger device comprises a frame, an electromagnet and an impacting rod; the impacting rod vertically and movably penetrates through the frame, the upper end and the lower end of the impacting rod are located outside the frame, a limiting buffer cushion is installed on the upper section of the impacting rod, and the lower end is the impacting end. The electromagnet is installed on the frame; an energy storage piece is arranged and has a downward action force on the impacting rod; when the electromagnet is electrified, the impacting rod is positioned through electromagnetic force; when the electromagnet loses power, the keeping force of the electromagnet on the impacting rod is lost, and the impacting rod performs the downward impacting motion under the action force. The power-losing trigger device is implemented through the electromagnet and a middle mechanism, and the electromagnetic force for maintaining the electromagnet is reduced through the middle amplifying mechanism, so that the current, the energy consumption and the cost of the electromagnet are reduced, the service life of the long-time electrification electromagnet is prolonged, automatic resetting of the electromagnet can be achieved, the electromagnet, an energy storage impacting structure and a resetting structure of the power-losing trigger device are simple, and the power-losing trigger device is convenient to use.

The present invention discloses a vibration and impact test method of server chassis internal and external parameters and a vibration and impact test device of the server chassis internal and external parameters. The vibration and impact test method of the server chassis internal and external parameters is characterized in that during a server vibration and impact test process, the equivalent counter weight blocks in which the acceleration sensors are arranged are arranged inside a server chassis to substitute for a real hard disk, a power supply and an expansion video card, and the built-in acceleration sensors acquire the linear stress and torsion situations of the real hard disk, the power supply and the expansion video card; the acceleration sensors are pasted on the external surface of the chassis to measure the linear acceleration of the pasting points; and the numerical values of the acceleration sensors inside and outside the chassis are utilized to quantize and describe the states of parts during the server vibration and impact test process. The method and device of the present invention help the anti-vibration and anti-impact structure design of the server chassis a lot, provide more determination bases for the reliability test result analysis, and have the characteristics of being test informatization, being high in flexibility, and being easy to operate.

An apparatus for dislodging stuck blades in a turbine engine. The apparatus includes a housing, cam structure, and impact structure. The housing is capable of being temporarily secured to a blade disc structure adjacent to a stuck blade to be dislodged. The cam structure is associated with the housing and is adapted to receive an input torque that rotates the cam structure, the cam structure capable of translating the input torque into an impact force, the impact force including a component in a desired direction. The impact structure is associated with the housing and is capable of receiving the impact force from the cam structure and exerting the impact force on a root area of the stuck blade for dislodging the stuck blade from the blade disc structure non-destructively.

The invention belongs to the field of a porous ceramic material and a preparation technology thereof, particularly relates to a SiC honeycomb ceramics material which is thin in porous wall, high in strength, high in specific surface, low in expansion, high in heat conductivity, high in thermal shock resistance, and controllable in structure and a preparation method of the SiC honeycomb ceramics material. The SiC honeycomb ceramics material has a continuous and single integrated structure which is similar to the shape of a honeycomb, and is provided with a plurality of in-parallel passageways along the axial direction, wherein the shapes of the passageways can be triangular, wavelike and the like; the number of pores in each unit area, which form into a honeycomb structure, can be controlled in a range of 100 / cm<2> to 5 / cm<2>, and the thickness of the pore walls can be controlled in a range of 0.2mm to 2mm; the pore walls can be in an impact structure, and have a micro-pore structure as well; and the invention takes organic resin and SiC powder as main raw material, and the main raw material is prepared into a single-layer structure by a mould pressing technology and is assembled into the honeycomb structure, and is reacted, infiltrated and sintered into a final product after being pyrolyzed. The preparation technology provided by the invention is simple in technology, convenient to operate, free from complex equipment, and low in manufacture cost.

The invention is a torsional impact drilling acceleration tool. The torsional impact drilling acceleration tool includes a shell body, the shell body is internally provided with a shell center hole, adrill bit seat is arranged at the other end of the shell boy, the drill bit seat is internally provided with a drill bit seat center hole, and a drill bit can be sleeved with the end, away from the shell body, of the drill bit seat center hole in a sealing mode. A driving shaft is coaxially sleeved with the shell center hole, the driving shaft is internally provided with a driving shaft center hole which is formed in the axial direction in a penetrating mode, and one end of the driving shaft is arranged in the drill bit seat center hole in a penetrating mode. A circumferential impact structure is arranged on the outer wall of one end of the driving shaft in a sleeving mode, the circumferential impact structure can produce circumferential reciprocating impact and is fixed in the axial direction, the circumferential impact structure is internally provided with a circumferential impact structure center hole which is formed in the axial direction in a penetrating mode, and the circumferential impact structure center hole and the driving shaft center hole can be formed in a communicating mode. The torsional impact drilling acceleration tool is simple in structure and long in service life, the cutting state of the drill bit can be improved, the service life of the drill bit is prolonged, and the efficiency of breaking rock by the drill bit is improved.

The invention discloses a rock breaking speed-increasing tool with a hammer rod reciprocating self-impact structure. The rock breaking speed-increasing tool comprises a connector, a drill bit body anda valve-type impactor; the connector is connected with the drill bit body to form an inner cavity; the inner cavity comprises a main cavity body, a cylindrical liquid inlet channel in the upper portion of the main cavity body, and a coaxial cylindrical piston cavity in the lower portion of the main cavity body, wherein the bottom face diameter of the coaxial cylindrical piston cavity is greater than that of the liquid inlet channel; a valve seat with the variable cross section is arranged between the liquid inlet channel and the piston cavity; the lower portion of the drill bit body is provided with a hammer rod slideway; the valve-type impactor is arranged in the main cavity body and comprises the valve seat, a piston punch hammer and a spring; and the piston punch hammer conduct reciprocating movement under the effect of the spring and hydraulic power. By cooperating with a drill bit, the rock breaking mechanism of local impact assisting scraping is achieved, the purpose of rock breaking speed-increasing is achieved, the structure is simple, the multiple reciprocating self-impact structures can be designed simultaneously, the multiple hammer rods can further be designed simultaneously, and the rock breaking efficiency of impact assisting scraping is further improved.

The invention discloses fracture-resistant and wear-resistant concrete for a prestressed assembling type road surface. The fracture-resistant and wear-resistant concrete for the prestressed assemblingtype road surface comprises the following components in parts by weight: 100 parts of cement, 5 to 10 parts of steel slag, 5 to 10 parts of coal ash, 1 to 5 parts of silica fume, 200 to 300 parts offine aggregates, 250 to 300 parts of coarse aggregates, 5 to 10 parts of a swelling agent, 1.0 to 2.0 parts of a water reducer, 0.001 part of a defoaming agent, 0.01 to 0.02 part of an rheological aid, 0.1 to 0.5 part of a polymer emulsion, 0.5 to 2 parts of fiber and 35 to 50 parts of water. The fracture-resistant and wear-resistant concrete for the prestressed assembling type road surface has high strength, high crack resistance, impact resistance, high wear resistance and high durability, can be applied to heavy-load road surface panel engineering and also can be applied to other severely impacted structure key parts.

The invention discloses a cable drilling tool with magnetic force percussion mechanism. It includes case, moving delivering structure, magnetic impact structure, and drill chuck. The small end surface axis using bearing supports at the front of case and extrudes out to install drill chuck. The large end surface has circle slot, where has circle permanent magnet. The driving axis is set in supporting base through bear. One end of driving shaft connects to center hole of driving disc through bond. A circle slot is set on the surface of supporting base where permanent magnet is installed. The permanent magnets would cause repulsive force and attractive force while rotating to make the driving disc move back and forth relative to driving shaft. The other end of driving shaft is connected to driving gear of driving structure. There are no energy consumption and no rigid impact in the invention. The useful life would be prolonged, and the lubricant will be saved. It also has no dust and noise during moving process.

The invention provides a pulsating impact drilling tool. The pulsating impact drilling tool comprises a shell body, wherein a shell center hole which penetrates through in the axial direction is formed in the shell body; a drill bit base is arranged at the other end of the shell body; a drill bit base center hole which penetrates through in the axial direction is formed in the drill bit base; a circumferential impact structure which can generate circumferential reciprocating impact to the drill bit base and is axially fixed is sleeved with the shell center hole; a first drilling fluid channelwhich penetrates through in the axial direction is arranged in the circumferential impact structure; an axial pulsating impact structure which can generate axial pulsating impact to the drill bit baseis axially and fixedly arranged at one end, close to the circumferential impact structure, in the drill bit base center hole; a second drilling fluid channel which penetrates through in the axial direction is arranged in the axial pulsating impact structure; and the second drilling fluid channel can be communicated with the first drilling fluid channel. By combining with the characteristics of apulsed jet tool and a torsion impact device, the pulsating impact drilling tool effectively increases the rate of penetration of a hard stratum, improves the rock breaking efficiency and reduces the drilling cost of the hard stratum.

The invention discloses an immersion optical fiber fluorescence phytoplankton measuring system. The system comprises an excitation unit, a fluorescence receiving unit and a data acquisition and control unit, wherein the excitation unit comprises a laser (1) and a conduction optical fiber (3); the fluorescence receiving unit comprises an underwater immersion module (4), a detection optical fiber (2), an optical filter (10) and a photoelectric conversion module (6); the data acquisition and control unit comprises a computer (9), a data acquisition module (8) and a gating signal module (7); and the whole system is divided into an underwater part and an overwater part. The immersion optical fiber fluorescence phytoplankton measuring system has an impact structure, a small volume, high sensitivity and strong anti-electromagnetic interference capacity, is convenient to maintain, can complete on-line measurement of phytoplankton in a water body at different depths so as to realize stereo measurement of the content of the phytoplankton, and can be widely applied to rapid and real-time monitoring of the concentration of the phytoplankton.

The invention relates to the field of detection devices, and especially relates to a device for detecting variable-force impact performances of a hydraulic buffer. The device comprises a substrate, an installation frame, a telescoping impact structure, and a hydraulic buffer installation structure. A to-be-detected hydraulic buffer is installed and fixed on the hydraulic buffer installation structure, and a telescoping driving device is stably installed on a cross beam and impacts on the to-be-detected hydraulic buffer installed on the hydraulic buffer installation structure stably and precisely, thereby enabling the to-be-detected hydraulic buffer to make compressing and stretching recovery movement. Preferably, the driving end of the telescoping driving device is provided with an impact force inductor, thereby enabling a gravity to be continuously located between the telescoping end of the telescoping driving device and the telescoping end of the to-be-detected hydraulic buffer, and detecting the number of impact times of the to-be-detected hydraulic buffer and the amplitude of the impact force at each time in the whole detection process more precisely, and achieving the detection of the working performance of the hydraulic buffer in a variable force impact environment.

The invention provides a flexible OLED device. The flexible OLED device comprises an OLED panel and a cover plate arranged on the OLED panel, wherein the cover plate is internally provided with a plurality of first anti-impact structures. The first anti-impact structures cannot damage the original function of a film layer, can effectively decompose an impact force applied to the flexible OLED device, avoids damage to products caused by stress concentration, and improves the impact resistance of the flexible OLED device.

The invention relates to a nailing gun, which comprises a machine shell for receiving a motor, and a nailing device, wherein the machine shell also comprises a transmission mechanism for converting rotary movements of the motor into periodical impacting actions to the nailing device, and the transmission mechanism further comprises an impacting assembly for applying the periodical impacting actions to the nailing device. Because the nailing gun adopting the structure of the invention is reasonably provided with the motor and a driving mechanism, the nailing gun has an impact structure, can realize continuous high efficient beats on a nail, and effectively avoids the trouble that a one-off shooting type nailing gun cannot drive in nails under certain working condition.

The invention belongs to the field of submarine hull structure design, and relates to a submarine non-pressure hull pyramid lattice sandwich anti-impact structure and a design method thereof. The invention provides a structure and a design method for applying a pyramid lattice sandwich anti-impact structure to a weak area of a non-pressure shell. The method improves the anti-knock performance of the non-pressure shell by replacing a conventional non-pressure shell with a pyramid lattice sandwich shell plate structure without reducing the structural performance of the original non-pressure shell.

The invention relates to a bracket crane of a multi-purpose underground coal vehicle, which consists of a hoist frame, a crane boom, a lifting arm, a steering cylinder, locating rods, a lifting ring, a rack groove, an installing drum, an installing axel, an arm axel, an installing rack, a fixing axel, a protecting panel, a fixing rack, an axel rack, an articulating rack and an articulating support. The hoist frame is provided with the left-right steering cylinder with the left-right steering half-angle of 45 degrees, the locating rods are respectively arranged at the left side and the right side of the crane boom to cause the crane boom to be limited and positioned and assure security. The fixing rack, the rack groove and the lifting ring are respectively arranged on the crane boom and the lifting arm so as to hoist materials, brackets, steel beams, cables and the like. The maximum loading capacity is 2,500 Kg. The hoist frame has reasonable design, impact structure, easy operation and use, safety, stability and reliability, thus the bracket crane is the ideal bracket crane of the multi-purpose underground coal vehicle.