37results about How to "Reduce installation links" patented technology

The invention discloses a window motor abnormal noise detection method and apparatus based on an MFCC and an SVM. Sound signals during no-load running of a motor are acquired and pre-processed. In the pre-processing stage, a second order Hanning self-convolution window is used as a window function for interception of the sound signals. After pre-processing, data extraction of MFCC parameters is conducted and an SVM is entered for abnormal noise determination. An MFCC feature value and a determination result Label are stored in a historical database. To improve the SVM discriminant accuracy, the invention adopts an artificial bee colony algorithm for SVM parameter automatic adjustment and updating; and the method has the characteristics of high reliability, practicality, and the like, and can be used for effectively distinguishing abnormal motor noises in practical applications.

The invention relates to an automatic control device, in particular to the automatic control device for a prestressing force tensioning device. The automatic control device comprises a tool anchor piece, a hollow lifting jack which is matched with the tool anchor piece, and a hydraulic pump which is connected with an oil outlet pipe through an oil inlet pipe on the lower part of the hollow lifting jack; the automatic control device is characterized in that: one side of the upper part of the hollow lifting jack is matched with a wireless tension displacement sensor; and a pump body of the hydraulic pump is provided with a secondary control machine which controls an electronic control valve bank and a master control machine and a remote Web server which coordinate all tension end points. The automatic control device has a unique structure, is convenient to operate and use, and can realize the high-precision control measurement of tension amount, improve construction efficiency and accuracy, reduce labor intensity and realize the automation of a prestressed member tensioning device.

The invention relates to the technical field of bearings, in particular to a combined bearing which comprises an upper bearing and a lower bearing, and the upper bearing comprises an upper bearing outer ring and an upper bearing inner ring; one end of the upper bearing inner ring is an inner ring piece; the lower bearing comprises a lower bearing outer ring and a lower bearing inner ring; a shaft piece is arranged at the other end of the upper bearing inner ring, penetrates through the lower bearing inner ring and is locked on the lower bearing inner ring through a locking sleeve; and the upper bearing outer ring is tightly matched with the lower bearing outer ring. The combined bearing with the encoder further comprises an encoder assembly, the encoder assembly comprises a coded disc, a photoelectric assembly and an induction assembly, the coded disc is installed on the inner ring of the upper bearing, the induction assembly is installed on the inner bottom face of the outer ring of the lower bearing, the photoelectric assembly comprises a light source and irradiates the coded disc, and the photoelectric assembly is in circuit connection with the induction assembly. According to the technical scheme, the combined bearing is integrated, the installation links are reduced, the inherent precision of the bearing is ensured, the rotation stability is effectively improved, meanwhile, assembly and disassembly are convenient, maintenance is facilitated, the space is saved through the integrated structure, and the appearance is attractive.

The invention discloses a sensing antenna which comprises an elastic material body with a sealed channel, and normal temperature liquid metal inside the sealed channel, wherein the elastic material body is arranged on an object to be measured; when being subjected to tension action, the sealed channel inside the elastic material body has corresponding deformation along with the deformation of the object to be measured; the liquid metal can flow inside the sealed, so that the resonant frequency of the sensing antenna corresponds to the deformation of the sealed channel. In addition, the invention further discloses a tension measuring device and a load measuring system with the antenna. According to the technical scheme of the invention, the antenna can be applied to moving objects or rotating objects.

The invention provides a wallboard component turnover mechanism and a turnover method thereof. A temporary support is arranged between a base and a turnover platform which are hinged to each other and capable of being turned over by 90 degrees, the temporary support is matched with a tower crane to lift and turn over the turnover platform, so that a wallboard component is turned over from a lying state to an upright state, and the technical problem of lifting installation of the wallboard component in the lying state is solved. The wallboard component turnover mechanism achieves the advantages of being simple in processing and installation, easy to operate, capable of achieving turnover, low in cost, free of electricity driving, high in security and the like.

The invention provides a keel system in a curtain wall system. The keel system comprises a vertical keel and a transverse keel which are connected; the transverse keel is of a whole section type, is intersected with the vertical keel, and located in front of the obverse side of the vertical keel; and in addition, a bearing base of a curtain wall plate hook is directly formed on the transverse keel. According to the keel system in the curtain wall system, the connection structure of the transverse keel and the vertical keel is simple, mounting is convenient, the transverse keel can be applied to the keel system in a through-length type sectional material mode according to the requirement, and the system structure is complete; in addition, the transverse keel can be combined into the bearing base, the mounting links are reduced, the mounting precision of a curtain wall is improved, and materials and labor cost are more saved; and a vertical upright and a transverse upright can be integrally adjusted and mounted in a three-dimensional mode, operation is convenient, the structure is simple, and manufacturing is easy.

The invention discloses a PDF file online field adding system and method. The PDF file online field adding system comprises a server, the server is installed with PDF file field adding software, which is composed of a PDF file receiving unit, a PDF file display unit, a PDF file coordinate computing unit, a field selecting unit, a field information computing unit, a field adding unit and a database. The method comprises that a user accesses the server via a terminal to upload PDF files to the server, and then through treatment by the server, the PDF files can be online added with fields and content. The PDF file online field adding system and method can be operated only through the terminal to greatly facilitateapplication by the user to a large extent, and meanwhile can automatically generate the PDF files containing fields without recording names, ID (identity) and coordinates of the fields, thereby being simple and convenient to operate. Besides, the PDF file online field adding system and method is high in precision, intuitive and less prone to errors.

The invention provides a portable air conditioner suitable for various occasions, which comprises an indoor unit and an outdoor unit, wherein the indoor unit and the outdoor unit are connected with each other via an indoor and outdoor connecting assembly; fast switching of the indoor and outdoor connecting assembly is realized via a fast connecting component; the indoor unit comprises an automatic drainage system which is characterized in that a water level induction passage is formed on the inner side surface of a clamping groove formed in one end of an indoor unit water-containing plate; an electromagnetic induction switch is in interference fit with an electromagnetic induction switch clamping groove; a floating ball is limited in the water level induction passage; an indoor unit drainage pipe is connected to the water-containing plate; an outdoor unit drainage pipe is connected to an outdoor unit water pump; after the indoor unit drainage pipe and an outdoor unit connecting water pipe are butted via the fast connecting component, an automatic drainage passage is formed; both the electromagnetic induction switch and the water pump communicate with a controller; and the controller controls the on / off of the water pump according to water level information of the electromagnetic induction switch. Due to the automatic drainage system, the portable air conditioner can run continuously to ensure the comfort of a user; and moreover, as manual drainage is avoided, the portable air conditioner is convenient and practical for the user.

The invention provides a folding ladder. The folding ladder comprises two pieces of ladders hinged together and lateral supporting rods arranged on the two sides of the two pieces of ladder respectively. The lateral supporting rods are a first lateral supporting rod arranged on the first side of the two pieces of ladder and a second lateral supporting rod arranged on the second side of the two pieces of ladder respectively; the first lateral supporting rod is a telescopic rod, the telescopic rod at least comprises a first section rod and a second section rod which are connected to each other, and the first section rod and the second section rod can stretch out and draw back oppositely; the first section rod and the second section rod are provided with multiple connecting holes with different heights respectively, dowel pins or positioning screws are arranged in the connecting holes, and the dowel pins or positioning screws in the first section rod and the second section rod are connected in a locating mode; the first section rod and the second section rod are rectangular rods; or cross sections of the first section rod and the second section rod are rectangular and groove-shaped. The folding ladder improves the safety performance of the lateral supporting rods.

The invention discloses a method and a system for acquiring and transmitting multi-dimensional fire data in a wide-area complex environment. The wide-area complex environment is characterized in thatthe covered area is wide, terrain features and building facilities are complex in composition, distribution is irregular, and the environment includes but not limited to forest fire prevention areas,chemical parks, explosion site types. The method comprises the following steps: step 1, quickly deploying a plurality of integrated measurement units from an airport outside a domain in an air-drop manner by utilizing aircrafts to dynamically establish a sensor node network covering a wide-area complex environment, wherein the integrated measurement units are distributed irregularly and include but are not limited to forest fire prevention areas, chemical parks and explosion site types; step 2, realizing multi-dimensional fire data acquisition by utilizing a multi-batch deployment integrated measurement unit; and step 3, realizing self-adaptive data uploading by utilizing satellite communication and a sensor node network. According to the invention, technologies of autonomous airdrop rapiddeployment, multi-dimensional fire data acquisition, adaptive data uploading and the like are integrated, and multi-dimensional fire data acquisition and transmission of a wide-area complex environment are realized.

The invention discloses a tower top assembly of a tower crane. The tower top assembly comprises a tower top and a standard knot connected with the bottom of the tower top, and is characterized in that the tower top and the standard knot are welded into a whole, and a ladder is arranged at the side of the tower top in a welding way; and a plurality of fences which are arranged at intervals are arranged at the side of the ladder in a welding way. The tower top assembly provided by the invention has the advantages that the tower top and the standard knot are welded into a whole instead of originally connecting the two parts into a whole by pin shafts, so that the link of pin shaft installation in the installation process is reduced, the phenomenon of pin hole wear is better avoided, and the service reliability is stronger; and the fences at the side of the ladder are arranged at intervals to play a protective role and also reduce the overall weight of the tower crane.

In a traditional wind generating set, power cables from a cabin part to a tower part are fixedly arranged on a U-shaped hanging board on a channel steel beam at the bottom part a cabin by mainly adopting cable sleeve net structures, and as the power cables are respectively bound by cable sleeve nets to form prints, and part of power cables are insufficiently centered, the power cables can be rubbed with a center bushing of a tower top platform during a skewing process, cable sheaths can be easily abraded, and great potential safety hazards are brought. The invention provides a power cable basket structure for a large-sized wind generating set. The power cable basket structure for the large-sized wind generating set comprises the U-shaped hanging board, a round basket, three supports and bolts, wherein the U-shaped hanging board is welded on the channel steel beam at the bottom part of the cabin, and the three supports are connected with the basket and the U-shaped hanging board. Through adopting such the power cable basket structure, the power cables are stressed by the inner wall of the round basket without the cable sleeve nets, and meanwhile, the round basket also plays a role of guiding the cables so as to ensure the power cables to be fully centered when reaching a tower from the cabin, and therefore, the power cable sheaths are protected from abrasion during the skewing process, and the safety of the wind generating set is improved.

The invention discloses a water-seepage-preventing construction method for a garage roof. The water-seepage-preventing construction method comprises the following construction steps: 1, surveying andsetting out are conducted on the built garage roof, and a blind ditch layout line is determined; 2, after a surface layer of the garage roof is subjected to waterproofing treatment, a blind ditch cushion layer is laid on the surface layer of the garage roof to make the cushion layer have a certain gradient in the water collection direction according to the blind ditch layout line; 3, a blind ditchnetwork constituted by a plurality of blind ditches is formed on the blind ditch cushion layer in a bricklaying mode through solid bricks according to the blind ditch layout line, water falling holesor drainage openings are formed in the tail ends, in the water collection direction, of the blind ditches, the water falling holes communicate with a water-collecting well through pipelines, or the drainage openings communicate with a municipal drainage pipe network; and 4, concrete cover plates used for sealing the blind ditches are poured above the blind ditches, and then after earthwork backfilling is conducted on the garage roof, a terrace is formed.

The invention discloses a novel refrigeration air conditioner, comprising refrigeration units, an intermediate regulator, and a diversion unit. Each refrigeration unit comprises an evaporator, and an adsorption bed and a condenser respectively arranged at the two sides of a semiconductor regulator, wherein the adsorption bed, the condenser and the evaporator form a circulating loop through a pipe. The adsorption beds of the at least two refrigeration units are respectively connected with the two sides of the intermediate regulator. The diversion unit comprises a shell, a first radiating fin arranged at the outer side of the condensers, a first radiating fan connected with the first radiating fin, a heat insulation layer arranged between the evaporators and the condensers, a first air port arranged on a side face of the shell, a second air port arranged at one end of the shell, a second radiating fin arranged inside the shell and at one side of the evaporators, a second radiating fan connected with the second radiating fin, a filtering device arranged on the first air port, a cooling device arranged on the first air port, and a diversion device arranged on the second air port. The novel refrigeration air conditioner is energy-saving and environment-friendly, easy to install, and beautiful and safe.

The invention provides a freezer-free liquid nitrogen artificial ground freezing method and belongs to the technical field of artificial ground freezing. According to the method, construction drilling, namely primary drilling is carried out at first, and then freezing of a drilled hole and the ground surrounding the drilled hole is carried out by inserting a liquid nitrogen injection pipe into the drilled hole; after muddy water in the drilled hole formed through primary drilling and the surrounding ground are frozen, secondary drilling construction is carried out, a stable channel is formed, and liquid nitrogen is injected continuously to achieve ground freezing; and after the range, temperature and strength of frozen soil meet design requirements, liquid nitrogen injection is stopped, and freezing is completed. According to the method, the characteristics of low temperature and quick freezing of the liquid nitrogen are fully used, the ground is frozen in a forced mode, conditions are provided for secondary drilling dry operation, a natural liquid nitrogen heat exchange space is formed in the ground after secondary drilling, the liquid nitrogen makes direct contact with the soil, and higher heat exchange efficiency and higher freezing speed can be obtained. The links of machining, producing and installing traditional freezers are omitted, material is saved, cost is reduced, and the construction progress is improved.

The invention of this article discloses an abnormal noise detection method and device based on MFCC and SVM. The sound signal is collected when the motor is carried out and the signal is prepared.During the pre -processing stage, the second -order Hanning self -voltage window is used as a window function to intercept the sound signal.After pre -processing the data extract MFCC parameter and enter the SVM for abnormal noise judgment.Save MFCC feature values and judgment results Label into the historical database.In order to improve the accuracy of SVM's judgment, the artificial bee colony algorithm is used to achieve automatic adjustment and update of SVM parameters; the method has high reliability and strong practicality, and can effectively judge the abnormal noise of the motor in actual production applications.

The invention discloses an integrated online cutting platform for an automobile glass production line, comprising: a platform, several longitudinal cutting bridges, several transverse cutting bridges, and several adjustment bases; each adjustment base includes: a bottom plate, which is fixedly connected to the platform; A steel pipe, the lower side of the steel pipe is fixedly connected to the bottom plate; a first adjustment plate, the lower side of the first adjustment plate is fixedly connected to the steel pipe, and the lower side of the longitudinal cutting bridge or the lower side of the transverse cutting bridge is arranged in the first adjusting plate Some first adjusting bolts, some first adjusting bolts respectively fasten the side wall of the longitudinal cutting bridge or the side wall of the transverse cutting bridge; some second adjusting bolts, some second adjusting bolts respectively fasten the lower side or The lower side of the transverse cutting bridge; several fixing bolts and fixing screws fixedly connect the longitudinal cutting bridge or the transverse cutting bridge and the first adjustment plate. The invention can adjust the overall equipment, has firm structure, high positioning accuracy, and improves the interchangeability between cutting bridges.

The invention discloses a novel belt conveyor tail automatic moving device which comprises a plurality of racks and a winding drum seat. Traction connecting lugs, a buffer supporting roller group, cart running rails, observing and flushing ports and connecting plates are arranged on the racks, the traction connecting lugs are arranged on two sides of the front ends of the racks, the buffer supporting roller group is arranged above the racks, the cart running rails are arranged on two sides above the racks, the observing and flushing ports are arranged on two sides below the racks, the connecting plates are arranged on two sides of the rear ends of the racks, and the winding drum seat is connected to the rear ends of the racks and is in bolt connection with the connecting plates. The novel belt conveyor tail automatic moving device is large in transport capacity, small in resistance, low in energy consumption and flexible in extension and contraction, and is high in working face advancing speed and large in transport distance conversion during fully-mechanized coal mining.

Disclosed is an oil-air filtering structure of an air compressor. The oil-air filtering structure of the air compressor comprises a screw-type air compressor main machine, an oil-air tank and an oil-air separator. The air outlet end of the screw-type air compressor main machine is connected into the oil-air tank through an air exhausting pipe. The oil-air filtering structure of the air compressor is characterized in that the oil-air tank comprises a tank body, a cover plate and a drum body, the upper end of the tank body is provided with an installing end opening, the side wall of the tank body is provided with a first communicating hole and a second communicating hole, the air exhausting pipe is located in the oil-air tank and close to the bottom of the oil-air tank, one end of the air exhausting pipe communicates with a first through hole of the cover plate, the other end of the air exhausting pipe penetrates through the second communicating hole of the tank body and extends into the drum body, a first filtering material is arranged on the position, close to the first communicating hole, of the inner side of the drum body, a second filtering material is arranged on the position, close to the first communicating hole, of the tank body, and a third filtering material is arranged on the position, close to the second through hole, of the inner side of the cover plate. The invention further discloses the air compressor. According to the oil-air filtering structure of the air compressor, the air exhausting pipe is arranged at the bottom of the oil-air tank and can be used for heating, the number of pipe joints is reduced, the leakage probability is reduced, and then the filtering materials can remove oil mist.

The invention discloses a construction method for floor or wall ceramic tile paving, which comprises the following steps: 1) measuring and setting out lines on the floor or wall; Lay the mortar layer on the body, and then lay the tiles; 3) First use the cross positioning frame for positioning, and then use the diagonal leveling and compacting tool to compact and level the adjacent tiles; 4) The overall preliminary paving of the tiles is completed Finally, use the diagonal leveling and compacting tools to clear the joints horizontally and vertically, and finally perform caulking, and complete the tile paving of the floor or wall. The invention can not only meet the neat paving of the floor / wall tiles, but also reduce the paving error, realize flatness control, satisfy the beauty of the grooves and joints, and effectively improve the paving speed and efficiency of the floor / wall tiles.

The invention discloses a door window installing and fixing method. The door window installing and fixing method is characterized by including the following steps that firstly, a fixed support is prepared; secondly, a connection piece is prepared; thirdly, the fixed support is installed, and on the longitudinal side wall of a hole, where a door window needs to be correspondingly installed, of a wall body, the fixed support is installed; fourthly, face layer construction is performed; and fifthly, assembling and fixing of the door window are performed, the position, corresponding to a positioning plate, on the outer side of the side wall of a window frame is provided with a positioning groove, then the positioning groove in the door window is aligned with the positioning plate, the door window is pushed so as to connect the positioning plate into the positioning groove in a clamped manner, and therefore the door window is installed in the hole, and then a fastener is used for sequentially penetrating through the door window and the fixed support, and is fixed in the wall body; and sixthly, coating of the wall body is performed. According to the method, the fixed support and the connection piece are integrally arranged by fully utilizing the structural manner of the fixed support, and has the characteristics that manufacturing is easy, installing is convenient and fast, and the using performance is high.

The present invention relates to a connection device for radiators that allows the radiator-valve and radiator-lockshield valve to be joined safely, easily and quickly, providing improvements in the scope of the installation, maintenance and environment, wherein the device comprises a reducing plug configured to adapt the radiator outlet to the size of the thread of a valve or a lockshield valve,wherein the reducing plug comprises a first end for joining to the radiator and a second end configured to carry out the coupling with a nut.

The invention discloses a mounting method of fabricated inner wall surface corner plates. Horizontal wall and longitudinal wall pin mounting holes are drilled respectively on the longitudinal wall andhorizontal wall in perpendicular to wall body corners; conjoined pins are inserted into the longitudinal wall pin mounting holes, and combined self-elastic pins are inserted into the horizontal wallpin mounting holes; the corner plates provided with corner plate plug pin holes are pushed into the corners of the longitudinal wall surface and horizontal wall surface, and when the corner plate plugpin holes on the horizontal sides of the corner plates directly face the position of the combined self-elastic pins, pin heads of the combined self-elastic pins pop up; and the corner plate plug pinholes on the longitudinal sides of the corner plates are directly opposite to the conjoined pins, and the conjoined pins are extended into the corner plate plug pin holes on the longitudinal sides. According to the mounting method of the fabricated inner wall surface corner plates, combined self-elastic pin horizontal connection with self-shrinking and springback, and conjoined pin longitudinal connection are adopted, interconnection and fixation between the wall surfaces and the corner plates longitudinally and horizontally are realized to form quick and concise mounting, mounting using requirements are met, and the mounting quality of the corner plates is improved.