86results about How to "Avoid contact wear" patented technology

The invention provides a method for detecting any defect in the inner wall of a hole by an optic way, which comprises the following procedures: a light pickup picks up an image formed by laser after reflecting on the inner wall of the hole, so as to get the depth at any point on the inner wall of the hole; the light pickup picks up an image formed by an illumination light after reflecting on the inner wall of the hole, so as to get the explored image of the inner wall of the hole and get the 2D sizes of the defect; and the 3D info on the defect is obtained by combining above two dimensions. By combining laser measurement with illumination light measurement, it is not only possible to get the 2D size of the defect, but also is possible to get the depth of the defect, so as to achieve 3D measurement of the defect; the use of a non-contact measuring way avoids any contact wear between a probe and the object to be measured, and improves the inspection speed.

The invention provides a drum screen capable of automatically and intermittently cleaning screen cloth. The drum screen comprises a motor, a speed reducer, a drum device, a rack, a cleaning device and a brush. The drum device is installed on the rack in an inclined mode. The motor is connected with the drum device through the speed reducer via a coupler. The cleaning device is composed of the brush, an eccentric shaft, a large chain wheel, a small sprocket and a transmission chain; the large chain wheel which is installed on a main shaft of the drum screen is connected with the small sprocket which is fixed to the eccentric shaft through the transmission chain; the brush is fixedly installed on the eccentric shaft. According to the drum screen, the screen cloth of the drum screen can be automatically and intermittently cleaned, so that it is guaranteed that the screen cloth is clear, labor intensity of a worker is mitigated, and screen efficiency is improved; meanwhile, it is also avoided that the brush makes contact with the screen cloth all the time, abrasion between the drum screen and the brush can be effectively reduced, and production cost is lowered.

A lubrication apparatus lubricates a feed mechanism of a molding machine. The lubrication apparatus includes a storage member for storing lubrication oil therein, and a lubrication oil circulation pipe connected to the storage member.

The invention relates to a self-cleaning dust collection device, which comprises an air inlet box (1), a coaming (2), a filter bag (3), a scraper blade (4), an ash bucket (5), a dust compactor (6) and a compression reducing motor (7), wherein the inner wall of the filter bag (3) is provided with a flipping and vibrating device (14); the scraper blade (4) is installed on a scraper blade shaft (8); the lower end of the scraper blade shaft (8) is provided with a fluted disc (10); and the bottom of the fluted disc (10) is provided with a stirring shaft (11). The self-cleaning dust collection device disclosed by the invention is greatly improved on the basis of the traditional scraper blade type dust collection device; the inner wall of the filter bag is provided with the flipping and vibrating device, and the dust cleaning principle is characterized by dust falling by flipping and vibrating; contact abrasion generated by the condition that the scraper blade and the filter bag directly contact is avoided, and the service life of the filter bag is prolonged; in addition, the bottom of the fluted disc is provided with the stirring shaft which can rotate along with the fluted disc so as to realize a self-cleaning function; the dust is prevented from bridging and clogging in the ash bucket; and dust filtering equipment is guaranteed to normally operate.

The invention provides a light conductive board and the backlight module using the light conductive board. The light conductive board is corresponding to the light source module of the backlight module. The light conductive board mainly contains the board, a number of microstructures and a number of convex structures. The board is installed nearby the light source module, and including the microstructure surface. The microstructure and convex structure are installed above the microstructure surface, in which the convex structure height is higher than the microstructure height, and between the adjacent convex structures having a number of microstructures.

The invention relates to a puncture sampling device and an in-vitro detection analyzer. The puncture sampling device comprises a puncture mechanism, a sampling mechanism and a driving mechanism. The puncture mechanism comprises a puncture needle, a first through hole is formed in the puncture needle, the puncture needle is used for puncturing a container cover of A sample container, the sampling mechanism comprises a sampling needle, the sampling needle is used for penetrating through the first through hole and extending into the sample container to sample, the driving mechanism comprises a vertical driving mechanism, and the vertical driving mechanism can drive the puncture needle to move in the axial direction of the sample container to puncture the container cover and can drive the sampling needle to move in the axial direction of the sample container to penetrate through the first through hole to enter the sample container to sample. According to the puncture sampling device, the service life of the sampling needle can be prolonged, pollution to the sampling needle is reduced, and the sampling precision and the sampling success rate can be guaranteed.

The invention discloses a method for protecting the surface of a water cooling wall tube of a boiler. The method includes the process steps of shot peening treatment and supersonic arc spraying, and specifically includes the following steps that a, surface pretreatment is conducted, specifically, sundries on the surface of the water cooling wall tube are cleared; b, shot peening is conducted, specifically, the surface of the water cooling wall tube are subjected to ultrasonic shot peening treatment by projectiles ejected by an ultrasonic shot-blasting machine; c, spraying is conducted, specifically, after shot peening, supersonic arc spraying equipment is used for spraying an HDS-88A coating on the water cooling wall tube after shot peening treatment, and the thickness of the coating is 0.6-0.8 mm; and d, hole sealing is conducted, specifically, the HDS-88A coating is subjected to hole sealing through a hole sealing agent. According to the method for protecting the surface of the watercooling wall tube of the boiler, the technologies of ultrasonic shot peening and supersonic spraying are combined, properties such as wear resistance, fatigue fracture resistance and corrosion resistance of the water cooling wall tube are effectively improved, and the service life of the water cooling wall tube is prolonged.

To provide a closed cable drag chain, which is capable of preventing the contact wear powder generated in the holding and guiding the inserted cable or the like from being scattered into an operation space, and of suppressing noises such as sliding contact noise and scattering sounds, and wherein the assembling, maintenance and repair are easy and early wear of the cable or the like can be suppressed. In a closed cable drag chain in which a cable or the like C is inserted into said chain in a tubular fitting state where removable outer frames 120 fit-covers connecting spaces S between a number of adjacent intermediate frames 110 to close the connecting spaces S therebetween respectively, whereby the cable or the like is guided while being held, a connecting portion 111c provided with engraved pin hole on a rear side of the intermediate frame body is integrally two-color injection molded with a polyamide resin softer than a glass-fiber reinforced polyamide resin forming other portions of the intermediate frame body 111.

An inkjet printer comprising: a replaceable pagewidth printhead with an array of nozzles and printhead contacts for transmitting power and print data to the nozzles; and, corresponding contacts for supplying the power and print data to the printhead contacts; and, a cover member for movement between open and closed positons; wherein, in the open position, the printhead can be installed or removed, and the cover member is in the closed position during printing; such that, the printhead contacts and the corresponding contacts are moved into engagement when the cover member is moved to the closed position, and the printhead contacts and the corresponding contacts disengage when the cover member is moved to the open position.

The invention relates to a waveguide optical fiber alignment coupling transmission structure, which comprises an optical waveguide plate, a hollow optical fiber, a waveguide, a guide pin and a multi-core beam-expanding lens connector; the hollow optical fiber is fixedly arranged in a pre-embedded optical fiber V-shaped groove with a solid optical fiber section facing outwards; the guide pin is fixedly arranged in a guide pin V-shaped groove; the waveguide is connected with a hollow optical fiber section of the hollow optical fiber; a cladding is also arranged on the upper plate surface of theoptical waveguide plate and covers and wraps the hollow optical fiber and the waveguide; the multi-core beam-expanding lens connector is fixedly connected with the optical waveguide plate through guide pin positioning; through the pre-embedded optical fiber V-shaped groove and the guide pin V-shaped groove which are precisely machined in the optical waveguide plate at a time, the relative positionprecision of the hollow optical fiber and the guide pin after installation is guaranteed, therefore the optical fiber alignment precision of the hollow optical fiber and the MT optical connector is guaranteed when signals of the optical waveguide plate are mutually coupled and transmitted, the debugging alignment process link is omitted, the structure and the method have the advantages of high production efficiency and low cost, and meet the mass production requirements of interconnection of optical waveguides of different layers of backboards.

The invention discloses a door plate paint brushing device which comprises a rack. A hollow rotary barrel is rotationally connected to the rack, a power device for driving the rotary barrel to rotate is connected to one end of the rotary barrel, the other end of the rotary barrel is communicated with the exterior, and a first air cylinder and a second air cylinder are arranged on the inner wall of the rotary barrel and are oppositely arranged along the diameter of the rotary barrel; a first support plate is connected to the first air cylinder, a second support plate is connected to the second air cylinder, and a paint roller set is arranged in the center of the rotary barrel and comprises a first paint roller and a second paint roller which are connected and form an L-shaped structure; and a third air cylinder is connected to the paint roller set in the axial direction of the rotary barrel. By means of the scheme, multiple faces of a door plate can be brushed with paint, the paint brushing space is greatly saved, and the paint brushing work can be completed in a small space; and meanwhile, the door plate paint brushing work can be done comprehensively, manual operation is reduced, and the door plate paint brushing efficiency is greatly improved.

The invention discloses a high-efficiency and high-speed analysis type counter-current chromatograph. A metal unwinding frame and a dynamic balance adjusting plate are arranged on an existing chromatograph; the metal unwinding frame comprises a metal base, a metal straight pipe, a center shaft oil plug, two symmetrically-arranged metal bent pipes and two separation column oil plugs, one end of each metal bent pipe is fixedly connected with the metal base, one end of each separation column oil plug is connected with a center hole of the corresponding separation column in an expanding mode, andthe other end of each separation column oil plug is arranged in the other end of the corresponding metal bent pipe. One end of the metal straight pipe is fixedly connected with the metal base, one endof the central shaft oil plug is in expansion connection with one end of the central shaft, the other end of the central shaft oil plug is arranged in the other end of the metal straight pipe, the metal straight pipe is communicated with the two metal bent pipes, and lining hoses filled with grease are arranged in the metal straight pipe and the two metal bent pipes; and the metal base is connected with the planet carrier through a dynamic balance adjusting plate. The chromatograph can realize counter-current chromatography separation at an ultra-high rotating speed, and has the characteristics of small size and high reliability.

The invention discloses a high-pressure diaphragm compressor, a cylinder cover of a high-pressure diaphragm compressor and a machining method of the cylinder cover, and belongs to the field of diaphragm compressors. The cylinder cover of the high-pressure diaphragm compressor comprises a cylinder cover body, wherein cylinder cover body is provided with an exhaust valve, an exhaust hole blockage and an exhaust cavity, the area where exhaust holes are formed in the center of the cylinder cover is excavated to serve as the exhaust cavity, the exhaust hole blockage is independently installed in the exhaust cavity, a corrugated spring is arranged between the exhaust hole blockage and the exhaust valve, the exhaust hole blockage can be used for machining a diaphragm cavity profile of the diaphragm compressor together with the cylinder cover only after the cylinder cover is installed well, and the outer diameter of the exhaust hole blockage is smaller than the inner diameter of the exhaust cavity. According to the high-pressure diaphragm compressor, the cylinder cover of the high-pressure diaphragm compressor and the machining method of the cylinder cover, the problems that under the conditions of high temperature and high pressure, due to the structural limitation of the exhaust holes, the deformation of the exhaust holes is greatly constrained, full expansion cannot be achieved, andthen the thermal stress of the inner surfaces of small holes is quite large are solved, the thermal stress generated by the exhaust holes due to high temperature can be reduced, then the strength ofthe cylinder cover of the high-pressure diaphragm compressor is improved, and normal operation of the diaphragm compressor is not affected.

The invention relates to the technical field of detection equipment, and in particular, relates to a turbine rotor welding joint detection system at least including a scanning robot for clamping a detection probe to move along the surface of a welded joint. The scanning robot includes a machine base which can walk along the surface of the welding joint, a clamping assembly mounted in the middle ofthe machine base and used for clamping the detection probe, a first driving assembly mounted on the machine seat and used for driving the clamping assembly to adjust relative to the position of the machine seat, a driving wheel mounted at the bottom of the machine seat, a second driving assembly for driving the driving wheel to rotate, a controller in communication connection with the first driving assembly and the second driving assembly and for controlling the work states of the first driving assembly and the second driving assembly, and a power device for providing power for the first driving assembly, the second driving assembly and the controller. The detection system can conveniently detect the welding joint, so as to ensure stable and highly efficient operation of a turbine unit.

A community access control device is disclosed in the invention, and comprises a first door post and a second door post, a top beam, a cross beam and a ground beam are fixedly installed on the first door post and the second door post, a sliding block moving in the vertical direction is arranged between the top beam and the cross beam, and a plurality of handrail assemblies are fixedly installed at the bottom of the sliding block. Each handrail assembly comprises a plurality of first supporting rods, a second supporting rod, a plurality of fixing blocks and a plurality of first springs, the first supporting rods are arranged at equal intervals in the vertical direction, the first supporting rod at the top position is fixedly installed at the bottom of the sliding block, and a sliding groove and a groove are formed in each first supporting rod. When the handrail assemblies are impacted by a vehicle, sliding rods are stressed to rotate in the grooves, the first springs are stretched, the handrail assemblies are bent at the joint of the sliding rods and the first supporting rods, the collision force of the vehicle is effectively buffered through bending of the handrail assemblies, the handrail assemblies do not make hard contact with the vehicle, and damage to the handrail assemblies and the vehicle is reduced.

The invention discloses a water conservancy automation information acquisition device, and relates to the technical field of water conservancy projects. The lower end of the upper fixing rod is rotationally connected with the upper side wall of the connecting cylinder, an adjusting motor is fixedly connected to the inner wall of the lower side of the connecting cylinder, the output end of the adjusting motor is fixedly connected with a connecting plate, a rotating sliding rod is fixedly connected to the upper end of the connecting plate, a limiting sliding groove is formed in the side wall of the rotating sliding rod, and a locking outer frame is slidably connected into the limiting sliding groove. The upper end of the rotating sliding rod penetrates through the lower side wall of the locking outer frame and is fixedly connected with a baffle, the inner wall of the lower side of the inner side of the locking outer frame is fixedly connected with a locking inner frame, and the upper surface of the locking inner frame and the upper surface of the locking outer frame are both fixedly connected with locking rods. An electric push rod is adjusted to drive a pipe barrel to move downwards, a locking outer frame and a locking inner frame are pushed to compress a supporting spring, and therefore a locking rod at the upper end of the locking inner frame is pulled out of a locking groove in the lower end of an upper fixing rod, and the locking outer frame is driven to rotate under the action of an adjusting motor.

The invention relates to treatment methods for fixed-bed gasification wastewater and particularly relates to a multi-chamber composite biological carrier and a method for treating the fixed-bed gasification wastewater. The multi-chamber composite biological carrier for treating the fixed-bed gasification wastewater comprises an outer frame, a rotary plate, a first slave frame, a second slave frame, embedded carriers, large-pore-size porous carriers and small-pore-size porous carriers, wherein the outer frame, the rotary plate, the first slave frame and the second slave frame are all net structures. According to the multi-chamber composite biological carrier provided by the invention, advantages of a fixed-bed biological membrane technology and advantages of a moving-bed biological membrane technology are combined, and an aerobic environment and an anoxic micro-environment are reasonably constructed, so that the loss of predominant bacteria is prevented, the caking, wearing and blocking among the carriers are avoided, and total phenols, ammonia nitrogen, total nitrogen and COD are synchronously removed.

The invention aims to provide an improved computer cable, which sequentially comprises cable cores, a skeleton, an inner inflaming retarding layer, an inner wrapping belt layer, an outer shielding layer, an outer wrapping belt layer, an outer inflaming retarding layer and an outer sheath layer from inside to outside; symmetrically distributed hole cavities are arranged in the skeleton; the cable cores are positioned in the hole cavities. After the positions of the cable cores are fixed by adopting the skeleton, displacement is not generated due to an external force, so all electrical parameters of a work line are not dispersed, the signal transmission is more stable and the medium loss is small; the skeleton and each insulation layer adopt a soft elastomer insulation body respectively, the contact friction loss between the cable cores is effectively prevented due to the structure of the skeleton and the cable breaking due to the friction loss caused by the bending of the cable is inhibited.

The invention discloses a wireless communication system of an SIM (Subscriber Identity Module) card. The wireless communication system comprises an SIM module and a communication terminal module, wherein the communication terminal module is provided with a GSM (Global System for Mobile Communication) sub-module, an electric energy transmitting sub-module, a wireless transmitting and receiving sub-module A and a data transmission direction detection sub-module A, the SIM module is provided with an SIM card, an electric energy receiving sub-module, a wireless transmitting and receiving sub-module B, a data transmission direction detection sub-module B and a CLK (Clock) clock signal generation sub-module. The invention further discloses a communication method of the wireless communication system of the SIM card. According to the wireless communication system of SIM card and the communication method thereof, contact corrosion of an external contact caused by influence of more than once contact plugging or external force is avoided, and reliability and stability of communication are improved; the service life of the SIM card and communication terminal equipment can be prolonged; and a method of simultaneous transmission of electric energy and a signal is implemented.

The invention provides a high-pressure one-way valve suitable for a high-pressure plunger pump of a cleaning machine, and belongs to the technical field of high-pressure one-way valves. The high-pressure one-way valve comprises a valve base and a valve bonnet fixedly connected with the valve base; an elastic compressing part and a valve block between the elastic compressing part and the valve baseare arranged inside the valve bonnet; a valve element moving in the vertical direction in a reciprocating mode is arranged inside the valve bonnet; a ball is arranged at the end, close to the valve block, of the valve element; the valve block is provided with a contact face matched with the ball and concaved inwards the valve block; and the valve element penetrates through the elastic compressingpart and the ball is located below the elastic compressing part, so that the ball is pressed on the valve block. The contact abrasion probability of the valve block and the valve bonnet is greatly reduced, so that the service life of the one-way valve, especially the valve bonnet is prolonged.