40results about How to "Reasonable clearance" patented technology

The invention discloses a method for installing a nuclear power half-speed steam turbine. The method comprises the steps of I, foundation inspection and secondary embedded installation; II, assembly and installation of a low-pressure cylinder; III, assembly and installation of a high and middle-pressure cylinder; IV, axis alignment and connection installation. The assembly and installation of a high and middle-pressure cylinder comprise the steps of (1), overhaul and installation of a thrust bearing; (2) measurement and regulation of a middle gland casing; (3) load distribution of the high and middle-pressure cylinder. The method has the advantages that load measurement is performed on a claw of the high and middle-pressure cylinder through a hydraulic jacking method, the method is simple in operation and high in measurement accuracy, jacking oil is injected during axis alignment, and accuracy of axis alignment is ensured.

The invention discloses a garbage classification system based on Internet of Things big data support. The system comprises residents, a management background and a data terminal; the residents involvethe activities of non-contact garbage throwing, point exchange articles and money exchange; the management background provides resident information management service, provides intelligent classification equipment management and is provided with an authority management model; the data terminal provides resident awareness rate, participation rate, decrement rate and delivery accuracy information,feeds back the actual participation conditions of the residents, provides visual graphical data and displays equipment operation and maintenance supervision data. From three aspects, garbage classification troubles are solved; the residents can deliver garbage by swiping cards and scanning codes; a community property delivery process is convenient to manage; a clearing and transporting unit masters categories and clearing and transporting amounts of generated garbage through data, so that a clearing and transporting route can be reasonably planned conveniently, clearing and transporting efficiency is improved; a government managerial unit intelligently records and analyzes data of the residents, community point locations and clearing and transporting vehicles in real time; and software platform intercommunicates information of all parties and feeds back the information to the managerial unit.

The invention discloses a scroll refrigerating compressor. More than three backing rings are fixedly arranged between the upper end face of an upper support and a high-low-pressure partitioning plate, a through hole is formed in a fixed scroll, the backing rings pass through the through hole in the fixed scroll, the upper surface of a fixed scroll backing plate is lower than the upper end faces of the backing rings, two annular grooves are formed in the fixed scroll backing plate, sealing rings are placed in the annular grooves, a backpressure cavity is formed among the upper surface of the fixed scroll backing plate, the lower end face of the high-low-pressure partitioning plate and the two sealing rings and is communicated with a compression cavity through a gas introducing hole, bolts penetrate through the high-low-pressure partitioning plate and through holes of the backing rings to be screwed in bolt holes of the upper support, and the high-low-pressure partitioning plate, the backing rings and the upper support are fixed together. The scroll refrigerating compressor has the beneficial effects that through reasonably designing the sizes of the backing rings, the upper support and the fixed scroll, a reasonable gap can be obtained between the high-low-pressure partitioning plate and the fixed scroll, the ideal pre-deformation of the sealing rings is promoted to be generated, and the backpressure cavity is sealed.

The invention provides a generator apparatus capable of enhancing generating efficiency, which comprises a power output device and a generator set, wherein the power output device is provided with an output shaft and used for outputting power; and the generator set comprises a differential gear set, a magnetic field rotor and an armature rotor. The generator apparatus is mainly characterized in that the stator in the traditional generator is changed into a reverse rotor which can move in the reverse direction with the rotor; by the reverse rotation of the conductor and the magnet, the cutting speed and the quantity of the magnetic lines of force can be increased, thereby outputting heavier current and enhancing the generating efficiency.

The invention relates to a sintering mold for controlled silicon chips and molybdenum pieces. The sintering mold comprises a sintering mold body. A plurality of parts are arranged on the sintering mold body. The center of each part is provided with a hole convenient for longitudinal exhausting. Holes convenient for transverse exhausting are formed below the holes convenient for the longitudinal exhausting. The top of the hole convenient for the longitudinal exhausting is provided with an upper-layer positioning step, a middle-layer positioning step and a lower-layer positioning step sequentially from top down. The periphery of the sintering mold body is provided with steps. The invention also relates to a using method of the sintering mold for the controlled silicon chips and the molybdenum pieces. The using method comprises the following steps of: 1, arranging cathode molybdenum pieces with silver-plated surfaces into the lower-layer positioning steps of the mold; 2, dispensing soldering paste on the cathode molybdenum pieces by using a corresponding adhesive dispensing head; 3, arranging the controlled silicon chips into the middle-layer positioning steps of the mold; 4, dispensing the soldering paste on the chips by using the corresponding adhesive dispensing head; and 5, arranging anode molybdenum pieces with silver-plated surfaces into the upper-layer positioning steps ofthe mold. The sintering mold and the using method have the advantages that: positioning accuracy and high heat-conducting properties are ensured; the mold has high permeability; and convenience is brought to vacuum extraction and the removal of soldering flux from the soldering paste.

A full-automatic efficient cutting machine for a bus bar is characterized in that the full-automatic efficient cutting machine comprises a square cutting machine shell; a controller support is arranged on the top of the cutting machine shell; one end of the controller support is fixed to the top of the cutting machine shell, and a controller is fixed to the bottom of the other end of the controller support and is a PLC; and an operation room is arranged on the upper portion of the cutting machine shell, and a discharging assembly, a deburring mechanism, a straightening mechanism, a compressionfeeding mechanism, a cutting mechanism and a traction mechanism are sequentially arranged on a bottom plate of the operation room from left to right. Using of manual work is avoided, labor force is liberated, the time and labor are saved in operation, and the requirement of enterprises for large-scale mechanical production is met conveniently.

The invention discloses an inter-cooling pipe fixing device. The inter-cooling pipe fixing device comprises a Z-shaped connecting support, a first semicircular hoop and a second semicircular hoop. The Z-shaped connecting support comprises a first installation face connected with a vehicle frame in a matched mode, a second installation face connected with the first semicircular hoop in a matched mode and a connecting face for connecting the two installation faces. A first long-strip hole is formed in the first installation face, and a second long-strip hole is formed in the second installation face; the first semicircular hoop is formed by a first clamping part and two first tightly-clamping parts, and installation holes are formed in the two first tightly-clamping parts respectively; the second semicircular hoop is formed by a second clamping part and two second tightly-clamping parts, installation holes are formed in the two second tightly-clamping parts respectively, and the second tightly-clamping parts are connected with the first tightly-clamping parts through bolts. By means of the inter-cooling pipe fixing device, the support structure is optimized, the rigidity and the strength of the support structure are improved, and it is guaranteed that pipe fixing is firm, reliable and durable.

The invention discloses a capillary eddy heat exchanger and belongs to the field of ground source heat pump devices. The capillary eddy heat exchanger is characterized by comprising a main case, a cooling-medium circulation line is arranged in the main case, a water inlet and a water outlet are respectively arranged in side walls of two ends of the main case, and the water inlet is located above the water outlet; the cooling-medium circulation line comprises an inlet pipe and an outlet pipe, a plurality of branch pipes with two ends communicated with the inlet pipe and the outlet pipe are arranged in parallel, and the branch pipes are spirally wound the inlet pipe or the outlet pipe from the periphery; the water inflowing direction of the water inlet forms a 0-45-degree included angle with the main case; water-inflowing rotation direction is opposite to the flowing direction of a cooling medium, and water circulation is opposite to circulation flowing direction of the cooling medium, and with over-entering and down-out water flow, more sufficient heat exchange is achieved. Besides, the capillary eddy heat exchanger is provided with a guiding device, a supporting device and a protecting device, hermetic heat exchanging space enclosed by upper and lower separating sealing rubber gaskets and the inner wall of the main case enables the capillary eddy heat exchanger to be more compact in structure, practical, safe and convenient and long in service life.

The invention provides a U-shaped tunnel-crossing beam transporting vehicle with an adjustable wheel track and a beam-feeding method of the U-shaped tunnel-crossing beam transporting vehicle. The beamtransporting vehicle at least comprises a vehicle body, traveling wheel sets and a beam carrying trolley; the vehicle body comprises a middle beam located in the middle and two side beams located onthe two sides; a plurality of cross beams are arranged in the longitudinal direction of the middle beam in a penetrating mode at intervals; the two ends of the outer sides of the multiple cross beamsare connected to the lower ends of the side beams correspondingly, so that the U-shaped structure of the vehicle body is formed; the traveling wheel sets are located at the lower ends of the side beams of the vehicle body and detachably connected with the side beams of the vehicle body, and the lower ends of the side beams are provided with two supporting positions of the traveling wheel sets; andthe beam carrying trolley comprises a front beam carrying trolley body and a rear beam carrying trolley body which are detachably connected. Therefore, according to the U-shaped tunnel-crossing beamtransporting vehicle with the adjustable wheel track and the beam-feeding method of the U-shaped tunnel-crossing beam transporting vehicle, the space below the flanges of box girders is utilized to the greatest extent, the transporting height is decreased, the transporting requirement of the large-span large-tonnage box girders can be met, especially the requirements for tunnel-crossing transporting of the box girders can be achieved, the forward travelling range of the front trolley body is further expanded, and longitudinal stability when a front cart of a bridge erecting machine takes the girders is improved.

The invention discloses a corn husking and threshing combined machine. The corn husking and threshing combined machine comprises a rack (1), a power device (30) fixed on the lower portion of the rack (1) and a power transmission device. The corn husking and threshing combined machine is characterized in that a husking device and a threshing device are parallelly installed on the middle portion of the rack (1), a middle baffle (50) for isolating the husking device and the threshing device is arranged between the husking device and the threshing device, and the bottom of the middle baffle (50) is fixed onto the rack (1); a feeding hopper (13) is installed at the front end of the top of the rack (1), the feeding hopper (13) is internally provided with a movable baffle (47), and the movable baffle (47) is hinged onto the middle baffle (50) through hinges (46); the husking device comprises husking pair rollers installed on the rack (1) and composed of a stripping roller (17) and a feeding roller (18); the threshing device comprises a threshing rolling cylinder (37) installed on the rack (1). The corn husking and threshing combined machine achieves multiple uses in one machine, the machining, the maintenance and the use are simple and convenient, and the husking and the threshing are cleaner.

The invention provides a rotation type multifunctional bottom tooth spring piece mechanism. The rotation type multifunctional bottom tooth spring piece mechanism comprises a watchcase disc, a rotating watch bezel cover and a rotation type multifunctional bottom tooth spring piece; the upper surface of the watchcase disc is provided with a fixing containing groove and a circular fixing hole; the fixing point of the rotation type multifunctional bottom tooth spring piece is fixed into the circular fixing hole at the plane of the bottom portion of the containing groove; the rotating watch bezel cover is located at the containing groove of the watchcase disc; the rotation type multifunctional bottom tooth spring piece is located between the watchcase disc and the rotating watch bezel cover; the rotation type multifunctional bottom tooth spring piece is flat and waved; the surface of the rotation type multifunctional bottom tooth spring piece is provided with a spring piece upwarp point; and the bottom portion of the rotation type multifunctional bottom tooth spring piece is provided with a circular fixing point. The rotation type multifunctional bottom tooth spring piece mechanism enables the gap and returning position between the watchcase disc and the rotating watch bezel cover to be reasonably adjusted, thereby enabling the returning position between the watchcase disc and the rotating watch bezel cover to achieve a better effect, and increasing the accuracy of a dial plate; and at the same time, the rotation type multifunctional bottom tooth spring piece mechanism has the advantages of being high in elasticity, strong in stability, long in service life, more silvery in rotation sound, and easy in processing and assembling, etc.

Disclosed is an automobile sheet metal part punching and blanking device. The automobile sheet metal part punching and blanking device is characterized by automobile sheet metal part punching and blanking device base, a cavity die, a punching terrace die, a terrace die slide, a connecting slider and an inertia fly wheel. The cavity die is arranged inside the automobile sheet metal part punching and blanking device base, the terrace die slide is perpendicularly mounted on the automobile sheet metal part punching and blanking device base, the connecting slider is mounted inside the terrace die slide, and the punching terrace die is mounted at the bottom of the connecting slider, and the intertia fly wheel is connected with the connecting slider through a connecting rod. The automobile sheet metal part punching and blanking device has the advantages of being simple in structure, convenient to use, low in cost, reasonable in the gap between the cavity die and the punching terrace die, stable in operation and wide in market prospect.

The invention discloses a connecting structure for an electronic cabinet backboard and a connector. The connecting structure comprises a rectangular metal backboard and the connector, wherein the connector is a profile and comprises a connecting side, an inserting groove and a butting side; the connecting side is used for connecting a bracket; the inserting groove is arranged on the connecting side and extends in the same direction as the connecting side; the butting side is used for being butted with the inner surface of a metal panel; two cross convex hulls and a plurality of bumps are stamped on the butted surface, butted with the inner surface of the backboard, of the butting side; two cross oval countersunk holes which are matched with the cross convex hulls in a manner of one-to-one correspondence are arranged on the inner surface of the backboard; each cross convex hull is inserted into the corresponding cross oval countersunk hole; the bumps are directly butted with the inner surface of the backboard; the butting side and the inner surface of the backboard are fixed through welding of a plurality of welding spots; and the welding spots are evenly distributed along the outer edge of the butting side. The connecting structure for the electronic cabinet backboard and the connector is reasonable, convenient to assemble and suitable for electroplating.

An assembly for controlling a gate, liquid level coordination and a gap of a single groove flotation machine comprises a machine body (1), wherein a precision regulating module (2), a gap sensing module (3), a telecommunication module (4) and a management module (5) are arranged on the machine body (1), the precision regulating module (2) is arranged in the gate regulating position, the gap sensing module (3) is arranged between an impeller and a stator, and information sensed by the telecommunication module (4) is transmitted to the management module (5) for processing; a deflection setting module (6) is arranged on the precision regulating module (2) and sets the reasonable value range of the gate deflection according to the liquid level condition; a contact sensing module (7) is arranged on the gap sensing module (3) and senses the gap and contact conditions of the impeller and the stator; a prompting module (8) is arranged on the management module (5); the operation is smooth by controlling the gate to be accuracy, the liquid lever to e stable and the gap to be reasonable.

The invention provides a hemodialysis filter, which comprises a shell, wherein a fiber membrane bundle is arranged in the shell, and comprises a polyethersulfone asymmetric hollow fiber membrane bundle and filling yarns arranged in the polyethersulfone asymmetric hollow fiber membrane bundle. Compared with the prior art, the hemodialysis filter of the invention has the following characteristics that filling yarns are arranged in a fiber membrane bundle, so that the overlapping opportunity of membranes is reduced, reasonable gaps are kept, dialysate flows and is distributed more uniformly, the effective area of the dialysis membrane is fully exerted, solute exchange is more sufficient, the cleaning performance of the hollow fiber hemodialyzer is improved, and the hemodialysis filter filter has the advantages of a dialyzer and a filter, has the advantages of simple structure, good biocompatibility, high filtration rate, stable physical and chemical properties and the like, and can be popularized and used in the field of blood purification.

The invention discloses one method for adjusting the gap between a scraper and a screen of a rock debris drying machine. The method includes the steps that the axial distance of a spiral drum is calculated according to the current positions of the scraper and the screen and the current gap between the scraper and the screen, the screen is detached, and a fixing assembly is loosened; a power mechanism is started, and a moving assembly drives the spiral drum to axially move; the power mechanism is stopped, and the fixing assembly and the screen are installed. The invention further discloses another method for adjusting the gap between the scraper and the screen of the rock debris drying machine. The method includes the steps that the axial distance of a spiral drum is calculated by judging the current positions of the scraper and the screen and the current gap between the scraper and the screen, and the screen, a bolt I and a flange are detached; the spiral drum is manually moved in the direction of a drive shaft key groove, and the spiral drum moves in the axial direction of a drive shaft; then the flange is installed on a hollow guide block, the contact faces of the flange and the spiral drum are tightly attached, the bolt I is screwed up to enable the flange and the spiral drum to be firmly fixed, and finally, the screen is installed on a supporting frame. The methods are simple.

The invention discloses a cigarette block height detecting and controlling device, and belongs to flexible loosening device in the field of tobacco manufacturing. At least one pair of height detectinggratings is axisymmetrically mounted on two side plates of an electronic scale belt in the feeding end of a pre-loosening device to obtain cigarette block height data detected in real time, a pre-loosening lifting device calculates the due height of an elevating mechanism and determines whether the elevating mechanism to rise or fall according to data of a cigarette block thickness difference feedback device, the elevating mechanism comprises a spiral elevator, and the elevating mechanism drives an upper deflection belt to move. The device can automatically adjust distance between upper and lower pre-loosening deflection belts according to the height of a cigarette block arranged on the conveying belt in the feeding end, so that the cigarette block can be pre-loosened with best effect, scrap formation is reduced, and the internal product quality is ensured. The device can be used to eliminate material jam of the pre-loosening device, ensure continuous production and stable quality, and further eliminate waste of material and labor forces and hidden quality troubles caused by material jamming.

The invention discloses an automatic adjustment brake drum. The automatic adjustment brake drum includes a housing (1); a power transmission device (2), a centralizing shaft (3), hoof blocks (4), an adjustment gear (5), and a hand brake supporting plate (6); the hoof blocks (4) are symmetrically arranged on two sides of the power transmission device (2) and the centralizing shaft (3); one end of the hand brake supporting plate (6) is fixedly arranged on the hoof blocks (4), and a waist-shaped hole and a limiting adjustment tooth (7) are formed in and arranged on the other end of the hand brakesupporting plate (6); the waist-shaped hole is movably connected to the adjustment gear (5) through a pin (16); the hand brake supporting plate (6) is engaged with the adjustment gear (5) through thelimiting adjustment tooth (7); the adjacent hoof blocks (4) open outward in the housing (1) with the power transmission device (2), and the other ends rotate around the centralizing shaft (3) with arotation supporting block (9). The automatic adjustment drum is reasonable in structural design, is easy to produce, and is easy to assemble.

The invention provides a self tightening flow passage sealing structure. The self tightening flow passage sealing structure is arranged inside equipment or a pipeline and comprises a shell, a sleeve and a baffle; the shell is fixed on a support platform through a cover plate and is provided with a cavity, an inlet and an outlet, and both the inlet and the outlet communicate with the cavity; the sleeve is hollow tubular and is fixed on the cavity, a gap is formed between the sleeve and the cavity through a flanging provided by the outer wall, and the outer wall of the sleeve is provided with aboss and a guide hole; the baffle is annular, sleeves the sleeve, and is arranged in the gap, the outer ring is fixed on the inner wall of the cavity, and the inner ring is connected with the boss ina gap; and the thermal expansion coefficient of the sleeve is different from that of the shell and/or the baffle, so that the sleeve, the shell and/or the baffle are heated to expand to generate the thermal expansion difference when heated liquid flows in the sleeve, the shell and/or the baffle, and the sealing effect is achieved by the relative extrusion of the boss and the baffle. The self tightening flow passage sealing structure uses the thermal expansion characteristic of materials to seal, so that the structure is simpler, the reliability is higher, the service life is longer, and the manufacturing difficulty and the manufacturing cost are reduced without regular maintenance.