3743results about How to "Prevent crushing" patented technology

The present invention relates to a road and vehicle management system based on wireless sensor network and its method. Said network system includes the following several portions: vehicle-mounted mobile node, roadbed monitoring sensor node embedded in ground base, roadside fixed sensor node, monitoring base station and server. Besides, said invention also provides the concrete function and action of above-mentioned every portion, and also provides the working principle of said system and its concrete operation method.

The invention provides an online self-sharpening metallic bond and super-hard abrasive precision grinding pellet and a preparation method thereof and belongs to the technical field of precision grinding pellets. Raw materials of the precision grinding pellet comprise a super-hard abrasive and a metallic bond, wherein the super-hard abrasive is diamond micro-powder; the diamond concentration falls within a range of 75-100 %; and the metallic bond uses a multicomponent alloy bond whose main components are copper powder, tin powder, aluminum powder, copper-clad ball shaped graphite powder, silicon dioxide and ferroferric oxide powder. The preparation method comprises the following steps: uniformly mixing and stirring the diamond micro-powder as well as the copper powder, the tin powder and the aluminum powder; adding polyvinyl alcohol to a mixture and mixing the polyvinyl alcohol and the mixture; adding the silicon dioxide, the copper-clad ball shaped graphite powder and the ferroferric oxide powder to an obtained mixture and mixing these materials and the obtained mixture; filling the mixture into a graphite mold; maintaining the pressure of the graphite mold for 5-10 minutes after pressurizing the graphite mold to 100-250 MPa; and carrying out hot pressing sintering on the graphite mold in a sintering furnace, wherein the sintering atmosphere is ammonia decomposition gas. Through the adoption of the online self-sharpening metallic bond and super-hard abrasive precision grinding pellet provided by the invention, online automatic sharpening can be achieved without blockage and offline repairing.

The invention discloses a prestress assembly frame structure which comprises floor beams, a floor post and a foundation, wherein the floor post is formed by connecting a plurality of floor post units in sequence from top to bottom, one floor post unit connected with the floor beams is a top post, one floor post unit connected with the foundation is a bottom post, a connecting point between the top post and the floor beams is a beam-post node, a connecting point between two adjacent floor post units is a post-post node, and the connecting point between the bottom post and the foundation is a post-foundation node. Through the improvement on the beam-post node, the post-post node and the post-foundation node, the problems that in a conventional prestress assembly frame structure, the beam-post node and the post-foundation node cannot consume energy effectively under major earthquake, and cannot provide pressed protection for concrete on a pressed area of an interface, and the tendon distribution method is unreasonable are solved, and meanwhile, the problems that the post-post node is inconvenient to accomplish, and an anti-shearing weak part is formed on a connection interface are solved.

The invention discloses an automatic package machine for corrugated cartons with different lengths. The automatic package machine comprises a rack. An initial material position containing area, a wrapping forming area and a carton sealing area are sequentially arranged on the rack in the carton conveying direction. A material conveying device is arranged below the initial material position containing area. A carton containing area is arranged in the wrapping forming area. A top face folding mechanism, a front end folding system and a tail end folding system are arranged in the carton containing area. A side face folding mechanism is arranged below the carton containing area. Each of the front end folding mechanism and the tail end folding mechanism comprises a side face duck tongue folding mechanism, a top face duck tongue folding mechanism and a bottom face duck tongue folding mechanism. A plurality of powerless transmission rollers are arranged in the carton sealing area in the length direction of the carton sealing area. A two-end carton sealing mechanism, a length direction carton sealing system and a width direction carton sealing system are arranged in the carton sealing area in the carton conveying direction. By means of the automatic package machine, packaging of carton type products of different specifications and different sizes can be achieved, and the application range is wide.

The invention relates to a process for preparing polyetheretherketone products, which is characterized in that the process comprises adopting Na2CO3 to be condensating agent, leading 4, 4'- difluorobenzophenone, hydroquinone and diresorcinol to have polymerization reaction, improving the reaction temperature after producing the relative prepolymer, and secondly adding hydroquinone to be chain extender to react for a period of time to prepare polyetheretherketone products with high viscosity.

Multilayer structures with alternating graphene and Si thin films were constructed by a repeated process of filtering liquid-phase exfoliated grapheme film and subsequent coating of amorphous Si film using plasma-enhanced chemical vapor deposition (PECVD) method. The multilayer-structure composite films, fabricated on copper current collectors, can be directly used as anodes for rechargeable lithium-ion batteries (LIBs) without the addition of polymer binders or conductive additives. Fabricated coin-type half cells based on the new anode materials easily achieved a capacity almost four times higher than the theoretical value of graphite even after 30 cycles. These cells also demonstrated improved capacity retention and enhanced rate capability during charge/discharge processes compared to those of pure Si film-based anodes.

The invention aims at providing a horizontal glass straight-line four-side grinding wheel type edge grinding machine. The edge grinding machine reduces the waste of grinding wheels and extends the service life of the grinding wheels by the structural design of changing the grinding points of the grinding wheels on glass, and prevents the glass from being crushed and scratched and improves the transmission precision in the grinding process by the structural design of utilizing a sucker for transmission. When the sizes of the glass are different, the glass edge-grinding task can be completed by shaping eight edges in one step without adjustment.

The invention discloses a miniature camera device comprising a circuit board, a photosensitive chip, an optical filter and a lens component, wherein the photosensitive chip is adhered on the middle of the circuit board, a passive element and a gold thread are arranged on the circuit board on the surrounding of the photosensitive chip, a circle of annular blocking edge surrounding the photosensitive chip is formed on a non photosensitive area of the photosensitive chip, a plastic package body for wrapping the passive element and the gold thread is formed on the photosensitive chip beyond the annular blocking edge and the circuit board through a plastic package material, a sinking groove is formed in the middle of the upper side of the plastic package body, the periphery of the optical filter is adhered in the sinking groove, therefore a light through hole is aligned to the photosensitive area of the photosensitive chip; and the lens component is installed on the upper side of the plastic package body. According to the miniature camera device disclosed by the invention, the plastic package body replaces the traditional bracket, the sinking groove is reserved in the plastic package body, and the optical filter is directly adhered in the sinking groove, thereby reducing the size of the camera module, and as the passive element and the gold thread on the periphery of the photosensitive chip are entirely cast in the plastic package body, the reliability of the product is enhanced.

The invention discloses an automatic press-connection machine of a connector and a press-connection system and press-connection process thereof. The automatic press-connection machine comprises a machine body, a portal frame supporting and guiding assembly, a material guiding assembly, a press-connection head replacing assembly and a press-connection assembly; the press-connection system comprises an IPC control chip, a height sensor connected with the IPC control chip, a CCD module, a movement control card, a linear motor and a data acquisition card; the press-connection process comprises a PARS press-connection module, a pressure press-connection module and a distance press-connection module. The automatic press-connection machine of the connector and the press-connection system and press-connection process thereof are applicable to a modern assembly line, fully-automatic material guiding control is adopted, a plurality of press-connection head components are arranged therein, multiple types of press-connection modes are correspondingly matched with the press-connection head components, in the press-connection process, pres-connection heads are replaced automatically, and product press-connection diversity is achieved.

The invention relates to a prefabricated tube pile embankment structure, which mainly comprises a prefabricated tube pile, a vertical drain tube, a shallow curing plate, a thin reinforcement concrete continuous plate, a rubble layer, a bubble concrete rolling-resistant layer, a concrete protection layer, a slag layer and a pavement structure, wherein the prefabricated tube pile penetrates through a soft soil layer and extends a relative bearing stratum; a weld seam protection device is arranged outside a prefabricated tube pile welding end plate; the shallow curing plate is arranged at the periphery of the top of the prefabricated tube pile; the thin reinforcement concrete continuous plate is arranged on the shallow curing plate; the top of the prefabricated tube pile is embedded in the thin reinforcement concrete continuous plate; the vertical drain tubes are pre-buried in the thin reinforcement concrete continuous plate and the shallow curing plate, the lower ends of the vertical drain tubes are externally coated with a reverse filter geotextile which is communicated with the rubber layer on the thin reinforcement concrete continuous plate; the bubble concrete rolling-resistant layer, the slag layer and the pavement structure are sequentially arranged on the rubble layer. The prefabricated tube pile embankment structure is high in bearing capacity, less in differential settlement, high in overall structure stability, and convenient to construct.

The invention provides a pole piece roll-forming method and a pole piece roll-forming device. The method comprises the steps that: slurry is coated on the surface of a current collector, such that a pole piece is prepared; the pole piece is bake-dried in a baking oven of a coating machine; the dried pole piece is delivered into a rolling mechanism, and rolling is carried out, wherein the bake-drying treatment and the rolling of the rolling mechanism are carried out in the baking oven of the coating machine. The pole piece roll-forming device is used for implementing the pole piece roll-forming method. The device comprises a coating machine baking oven used for carrying out the bake drying treatment upon the pole piece formed by the current collector coated with the slurry, and the rolling mechanism used for rolling the dried pole piece. The rolling mechanism is arranged in the coating machine baking oven. With the pole piece roll-forming method and device, battery core electrochemical properties can be improved, and pole piece thickness rebound can be reduced. In industrial production, the method and the device have the advantages of simple operation and easy realization.

The invention discloses a winding packaging machine which comprises a base, a vertical column, a beam, a lifting mechanism and a control cabinet. One end of the base is fixedly connected with the vertical column through a diagonal draw steel bar, the beam is fixedly connected at the upper end of the vertical column through a diagonal draw steel bar, the lifting mechanism is mounted on the vertical column, a turntable motor is arranged at the rear end of the base, a spindle and a driving turntable are connected on the turntable motor, a lower turntable rubber mat is mounted on the turntable, the lifting mechanism and a lifting motor are mounted on the vertical column, a lifting table is mounted on the lifting mechanism, a tray and a rotating shaft are connected on the lifting table, a cylinder is mounted at one end of the beam, a servo pressure plate is connected on the cylinder, and an upper turntable rubber mat is mounted on the pressure plate. The packaging machine is simple in structure, wide in packaging product range and fine in packaging effect, and products can be effectively prevented from being scratched in packaging.

The invention discloses a universal tooling fixture for shaft parts, which comprises a base fixed on a workbench, a clamping mechanism, an adjusting mechanism and an angle adjusting mechanism. Using the general tooling and fixture for shaft parts described in the present invention, an angle adjustment mechanism is set to realize the placement of shaft parts at any angle and all-round rotation, and the adjustment mechanism is set to adjust different shaft diameters and different lengths. As well as adjusting the clamping position of shaft parts with various shaft diameters on the same shaft, a clamping mechanism with adjustment parts is set up to clamp shaft parts. This device makes shaft parts more accurate during processing, testing and assembly. Efficient and convenient, especially for fast switching when clamping different positions of different shaft parts, which brings great convenience, and can effectively solve the problem of single specification of clamping parts, inflexible placement and troublesome operation of existing shaft parts tooling fixtures, etc. Problem, the device is simple in structure, easy to use, low in cost, and easy to popularize.

The invention relates to a continuous fiber reinforced thermoplastic resin melt impregnation 3D printing device and a method, wherein thermoplastic resin is used as a matrix, and continuous glass fiber or carbon fiber is used as a reinforcement. The 3D printing device comprises an extruder, an unwinding roller, a pre-tensioning roller, an infrared radiation device, a gas-assisted swinging device,a wire wetting mold, a cooling device and a 3D printer. A continuous fiber bundle is firstly pre-dispersed by the pre-tensioning roller, the upper surface and the lower surface of the continuous fiberare pre-heated by the infrared radiation device, the pre-heated continuous fiber is unfolded to a certain width under the action of the gas-assisted swinging device, then the pre-heated continuous fiber enters the wire wetting mold, the wetting process of the resin matrix on the fiber bundle is completed under the action of a wave-shaped runner, the fiber bundle is conveyed forwards by the traction of an inner traction roller and passes through a circular shaping die to form continuous fiber prepreg filaments which can be used for 3D printing, and cooling, feeding and printing are carried outto finally obtain the 3D printed product of the continuous fiber reinforced thermoplastic composite material. According to the device and the method, uniform dispersion and full impregnation of the continuous fiber in the resin matrix can be realized, the 3D printing continuous fiber reinforced thermoplastic composite material product with good interface bonding and excellent performance can be prepared, and meanwhile real-time integrated forming of continuous fiber consumables and the 3D printing composite material product can be realized.

The invention relates to a full-automatic camshaft assembling machine. The full-automatic camshaft assembling machine comprises a rack and a power distribution control cabinet arranged in the rack; arotating disk device is arranged on the middle portion above the rack; and a shaft feeding device, a cam vibrating feeding disk, a cam feeding device, a press-fitting device, a floating shaft pressingdevice, a laser welding device, a flaw detecting device and a discharging device in butt joint with carrier assemblies are sequentially arranged above the rack in the rotating direction of a rotatingdisk. According to the full-automatic camshaft assembling machine, by means of the shaft feeding device, a shaft is placed in the carrier assembly on the rotating disk device, and the carrier assembly rotates clockwise along the rotating disk and sequentially rotates onto the cam feeding device to perform cam feeding, onto the press-fitting device so as to press a cam into a matching groove of the shaft, onto the floating shaft pressing device to push down the shaft to be clamped with the matching groove, onto the laser welding device to perform laser welding on the matched portion of the shaft and the cam, onto the flaw detecting device to detect bruised damage and scratches, and onto the discharging device to perform discharging; and the assembling process of the cam and the shaft is completed, the positioning precision is high, and defective products are detected in time.

The invention relates to a servo bottle cap screwing mechanism in the technical field of packaging machinery, which comprises a cap screwing head, a waste cap withdrawing mechanism, an idler wheel mechanism, base blocks, a servomotor, a connecting support and a motor control system, wherein, the cap screwing head, the idler wheel mechanism, the servomotor and the connecting support are arranged on the base blocks, the motor control system controls the servomotor to rotate at certain rotating speed and torque, and the generated dynamic power is transferred to the cap screwing head by the idler wheel mechanism, so as to cause the cap screwing head to rotate along with the servomotor; the connecting support is connected with a lifting guide rod to drive the base blocks to raise and fall periodically, and the height of the waste cap withdrawing mechanism is unchanged, and the waste cap withdrawing mechanism is arranged at a cap screwing machine. Under the germfree condition, the entire bottle cap screwing mechanism is lubrication free, has no leakage, is convenient for frequent rinsing and disinfection; the cap screwing torque is controlled by computer, the cap screwing mechanism is driven by servomotor and has large adjustable range; and besides, the working torque, the cap screwing speed, and the like, of the single cap screwing mechanism can be displayed, and the cap screwing mechanism can automatically discharge waste or abnormal caps.

The invention discloses a self-propelled corn combine harvester and belongs to the field of agricultural machinery. The self-propelled corn combine harvester comprises a working chassis assembly and a harvesting assembly. The working chassis assembly consists of a power system, a driving control system, a walking chassis system. The harvesting assembly is arranged on the working chassis and comprises a corn ear picking table, an ear picking table mounting rack, a primary ear elevator, a secondary ear elevator, an ear stripper, an ear throwing roller, an ear box, a stripper seed recovery device and a power transmission system which are mutually connected. The self-propelled corn combine harvester is characterized in that a straw chopper is arranged in front of a driving wheel of the walking chassis system, and is mounted under the ear picking table mounting rack in front of the driving wheel through a chopper suspension device. Due to the structure optimized design, the straw chopper is arranged in the front and is mounted in front of the driving wheel and under the ear picking table mounting rack, and the ear-picked straw directly enters the chopper to be cut. Therefore, the straw is prevented from being rolled by wheels, and the straw chopping quality is improved.

The invention relates to an automatic CPU alignment assembling machine. The automatic CPU alignment assembling machine comprises a bottom plate. The bottom plate is provided with a rotating mechanism used for facilitating manual feeding and discharging. A rotary disc of the rotating mechanism is provided with a carrier mechanism used for positioning a product. The product is positioned on the carrier mechanism. A CPU is placed in the product. A pressing plate is placed on the CPU. A plurality of sets of screw positioning modules are arranged on the pressing plate and correspond to to-be-locked positions of the product. The bottom plate is provided with a downward pressing mechanism used for downwards pressing the pressing plate. A locking mechanism used for locking the CPU to the product through screws is arranged on the bottom plate. The CPU is locked on a cylinder computer case through the screws, automatic alignment and centering of the left side and the right side of the CPU can be achieved, and accurate screw locking is achieved.

The invention discloses an ultrasonic guided-wave probe array fixing device used for tube fitting detection. The ultrasonic guided-wave probe array fixing device comprises a mechanical part and a signal circuit part, wherein the mechanical part comprises a circular-ring-shaped base, a plurality of positioning bolts, a plurality of spiral telescopic components, a plurality of swing rods and a plurality of probe bases; the inner diameter of the circular-ring-shaped bases is larger than the outer diameter of a detected tube fitting; two side panels of the circular-ring-shaped bases are respectively a panel A and a panel B; the positioning bolts are mounted on the panel B; each spiral telescopic component penetrates through the panel B and the panel A in sequence and then is correspondingly connected with one end of each swinging rod to regulate the opening and the closing of the swinging rod, the other end of each swinging rod is correspondingly connected with each probe base; a structure consisting of the spiral telescopic component, the swinging rods and the probe bases is uniformly distributed on the circular-ring-shaped base. The ultrasonic guided-wave probe array fixing device used for tube fitting detection, disclosed by the invention, is simple in structure, quick and convenient to operate, and capable of adapting to detection needs of tube fittings with different outer diameters within a design range.

The invention discloses a package bag secondary automatic packaging system, which comprises a secondary packaging automatic bag arranging mechanism, a secondary packing machine bag collecting cabin, a secondary packaging machine bag taking and bag opening mechanism, a secondary packaging machine bag storing mechanism, a secondary packaging machine bag supporting mechanism, a secondary packaging machine bag opening shaping and hot sealing mechanism and a secondary packaging machine bag dragging and bag holding mechanism. The package bag secondary automatic packaging system has the advantages that the automatic bag arranging, bag taking and bag conveying positions are accurate, the packaging stability is greatly improved, and the whole packaging system adopts a plurality of sensors, so the work efficiency is greatly improved, the work intensity of workers is reduced, and in addition, the installation performance is greatly enhanced.