33results about How to "Reduced risk of bending" patented technology

Provided is support structure of a pipe nut improving assemblability. The structure comprises a pipe nut 1 where one end side 1a is supported by matching to a hole part of a vehicle body frame 10, a bolt which is fastened to the pipe nut 1 through the hole part and supports a supported body to the vehicle body frame 10, and a reinforcing member 2 which is fixed to the vehicle body frame 10 and contacted to the other end surface 1b of the other end part of the pipe nut 1, and constituted so as to be mounted by welding the other end surface 1b of the pipe nut 1 and the reinforcing member 2.

A looping tool bar (1) is proposed, which has a plurality of grooves (2) arranged side by side, which grooves are separated from each other by spacers (3) and into which knitting elements (4) can be inserted, The groove (2) has side walls (5, 6) whose spacing is greater than the thickness (D) of the knitting element (4). It is desirable to be able to achieve high precision when assembling the knitting elements. For this reason, the groove (2) has an elastically deformable molding (7-10) on at least one side wall (5, 6) respectively, which makes the distance to the opposite wall (6, 5) reduced to Less than the thickness (D) of the knitting element (4).

The invention relates to a printing machine roller (10) with a roller basal body (11) and a function layer forming an outer surface of the printing machine. According to the invention, the roller basal body (11) is made of textile fabric or hardboard soaked by phenolic resin.

The invention discloses a back pressure type steam turbine rapid starting method based on cold end optimization. The back pressure type steam turbine comprises a negative pressure cold end system, thenegative pressure cold end system comprises a back pressure machine and a cooling water main pipe, one side of an output end of the back pressure machine is connected with a body hydrophobic expansion container, and the other end of the output end of the back pressure machine is connected with a steam condenser. The steam condenser is connected with a condensate pump and a steam-jetting steam extractor, and an outlet of the steam-jetting stream extractor is connected with a condenser. When back pressure type steam turbine is used, the heating speed of a steam cylinder can be increased, the temperature difference between an upper and lower cylinders of the steam turbine is reduced, the risk of dynamic and static collision grinding and large shaft bending is reduced, the steam turbine is safer and more stable, the safety of a power plant is improved, meanwhile, emission of carbon dioxide, sulfur dioxide, nitrogen oxide and the like can be reduced, the steam exhaust and hydrophobic heatof the back pressure machine is recycled, meanwhile, the outward steam supply amount of the power plant is increased, and the economical efficiency of the power plant is improved. The method is suitable for starting processes of various back-pressure steam turbines and is suitable for popularization and use.

The invention relates to a filter press (1) for filtering suspensions that comprises a plurality of filter plates (1M, 1K) that can be displaced in parallel with respect to one another. In a filtering position, said filter plates can be compressed to a package that comprises a filter chamber (23) between respective two filter plates (1M, 1K), said chamber being provided with at least one filter cloth (7M, 7K). In a discharge position, adjoining filter plates (1M, 1K) can be moved apart by a discharge distance (3) so that the filter cake adhering to the filter cloth (7K) can be discharged. Every filter chamber (3) is correlated with at least one filling element (2) for feeding the suspension to the filter chamber (23). The aim of the invention is to prevent leakages in the zone of the peripheral sealing edge, to guarantee an unimpaired filter capacity during feeding and to facilitate operation of the filter press without an external supply line and outgoing connection lines. To this end, the filling element (2) is disposed on a joining piece (5) that extends outside a plate level and within a sealing edge (27) on the periphery of the filter plates (1M, 1K) and that can be linked with a filter plate (1M). In the filtering position, the filling elements (2) form a suspension supply channel (22) that extends through the filter plate package and are sealingly wedged between adjoining filter plates (1M, 1K).

The invention relates to a disc type drier. The disc type drier comprises a machine shell and a drying mechanism arranged in the machine shell, wherein the drying mechanism comprises a shaft rod and shaft heads sleeved at the two ends of the shaft rod, and the shaft heads are provided with steam inlets and condensate outlets; a plurality of guiding pipe groups are uniformly distributed on the shaft rod, guiding pipes of each guiding pipe group are uniformly distributed on the same shaft section of the shaft rod, and each guiding pipe group comprises a plurality of condensate water guiding pipes and a plurality of steam guiding pipes; heat transfer discs are sleeved on the shaft rod by corresponding to the guiding pipe groups one by one, and the heat transfer discs are formed by welding two disc-shaped pieces in an opposite manner; a radial gap formed by the two disc-shaped pieces is internally provided with a plurality of guiding plate groups, and the guiding plate groups are arranged in match with the condensate water guiding pipes. The disc type drier provided by the invention has the advantages that large amount of condensate water in the heat transfer discs can be rapidly discharged through the condensate water guiding pipes, and the heat exchange efficiency is high; the guiding pipe groups and the heat transfer discs are uniform to distribute and drain, a water hammer effect is unlikely to cause, the damage risk of the shaft rod is reduced, the service life of the drier is prolonged, the driving energy consumption is reduced, and the maintenance cost is reduced.

The invention relates to a nuclear fuel assembly and a variable-rigidity pressing device. The variable-rigidity pressing device comprises a plurality of pressing units. Each pressing unit comprises afirst plate spring and a second plate spring which are sequentially arranged in a stacked mode from top to bottom. The first plate spring comprises a first connecting arm, a first inclined arm obliquely extending at one end of the first connecting arm and a vertical arm arranged at the end, away from the first connecting arm, of the first inclined arm. The second plate spring comprises a second connecting arm and a second inclined arm obliquely extending at one end of the second connecting arm and stacked with the first inclined arm. A first window allowing the vertical arm to penetrate through is arranged in the section, away from the second connecting arm, of the second inclined arm, and the length of the second inclined arm is greater than that of the first inclined arm so that the highest point of the second inclined arm is higher than that of the first inclined arm. According to the variable-rigidity pressing device, plastic deformation of the plate spring can be reduced or eliminated, the bending risk of the fuel assembly can be reduced and irradiation stress creep relaxation can be reduced.

The invention discloses a spring set. The spring set comprises an upper steel disc, a lower steel disc and a plurality of springs. The upper steel disc and the lower steel disc are arranged in parallel. The upper ends of the springs are fixed to the lower portion of the upper steel disc, the lower ends of the springs are fixed to the upper portion of the lower steel disc, the number of the springs is an even number, the turning directions of every two adjacent springs are different, the number of total coils and the tail coils of the springs are set to be 0.5, the left-hand springs and the right-hand springs are the same in number, height, coil number and other ordinary parameters, and the middle external diameter of each spring is larger than the external diameters of the two ends. The spring set has the beneficial effects that the problems that a spring is bent easily and a spring set is poor in stability and short in service life are solved, and the service life is prolonged.

Provided is support structure of a pipe nut improving assemblability. The structure comprises a pipe nut 1 where one end side 1a is supported by matching to a hole part of a vehicle body frame 10, a bolt which is fastened to the pipe nut 1 through the hole part and supports a supported body to the vehicle body frame 10, and a reinforcing member 2 which is fixed to the vehicle body frame 10 and contacted to the other end surface 1b of the other end part of the pipe nut 1, and constituted so as to be mounted by welding the other end surface 1b of the pipe nut 1 and the reinforcing member 2.

The invention relates to a button system for activating an actuating member, the system comprising a button head, a pusher integral with the button head, a first hollow guide member, the pusher mounted to slide inside the first hollow guide member, The first hollow guide member is for fixing to the fixing element relative to the button head and the pusher, the second hollow guiding member is arranged in the button head, and the pin is mounted to slide inside the second hollow member and for fixing to the fixing element superior. According to the invention, the pusher has an upper part provided on its periphery with a flange intended to cooperate with the inner surface of the first hollow guide member to guide the pusher within said member.

The invention relates to the technical field of grinding machines, in particular to a grinding system and a grinding method. The grinding system comprises a workbench provided with a via hole, a grinding disc suitable for being conveyed into an inner cavity of a to-be-ground object, a rotating main shaft and a grinding disc automatic installing mechanism; the rotating main shaft has a first working position and a standby position, wherein the standby position is the position of the rotating main shaft located below the workbench, and the first working position is the position that the rotatingmain shaft upwards penetrates through the via hole to extend into the inner cavity to install or detach the grinding disc; the rotating main shaft is located below the workbench, the stroke of the rotating main shaft is shortened, loading and unloading of a workpiece are facilitated, and influences caused by the fact that a driving component is located above a workbench face on layout of a workpiece loading and unloading mechanical arm on the workbench are avoided; and the rotating main shaft conducts pulling from top to bottom to conduct grinding, a grinding head is provided with downward pulling force, the risk of bending due to large stress of a grinding shaft is reduced, and the structure of the driving end is simplified.

The invention provides a heating fitting for a photographing apparatus and a photographing apparatus. The heating fitting is applied to heating the photographing apparatus, and comprising a heating part, a power supply line and a power supply connection part. The heating part is connected to the power supply connecting part through the power supply line; the heating part is integrally in the shapeof a strip, and is used for heating the photographing device; the plugging / unplugging direction of the power supply connection part is perpendicular to the bar-shaped direction of the heating portion. Compared with the prior art, the heating part of the heating fitting in the prior art has the same orientation as the power supply connection part, so that the heating part and the power supply connection part can be combined with the photographing equipment only by bending the power supply line in practical application, so that the invention can reduce the bending risk of the power supply line,facilitates the assembly of the heating fitting, and is conducive to improving the working efficiency.

The invention discloses a swirling extraction device, which relates to metal smelting and aims to solve the problem of low extraction and mass transfer efficiency. The main shaft, the swirl reaction disk coaxially fixed on the main shaft, and the swirl extraction motor used to drive the main shaft, the upper and lower ends of the cylindrical outer wall of the cylindrical shell are respectively provided with a liquid inlet and a liquid outlet. A connector is provided between the top end and the swirl extraction motor, and the number of the swirl reaction discs is at least four, and they are arranged at equal intervals along the length direction of the main shaft. The cyclone extraction device of the present invention assists in extraction or stripping, effectively improves mass transfer efficiency, and effectively reduces the influence of mass transfer reaction heat.

A thermally processed camshaft quick-loading anti-bending tooling, comprising a cube or cuboid frame jointly surrounded by a plurality of upper support frame plates (1), lower support frame plates (2) and vertical support frame plates (3). The bottom surface of the support frame plate (1) is fixedly connected with a plurality of I-beams or H-shaped steels (6), and the top surface of the lower support frame plate (2) is fixedly connected with a plurality of channel steels (7). The red hot camshaft can The gap between two adjacent I-beams or H-beams (6) is loaded and snapped between the lower legs of two adjacent I-beams or H-beams (6), and part of the shaft section at the lower end of the camshaft can Stretch into the gap space between the channel steel (7) two legs. The hot-processed camshaft fast loading anti-bending tooling and corresponding method of the present invention can quickly load the red-hot camshaft, prevent bending caused by traditional horizontal placement and boxing, and have a large capacity, and can quickly calculate the loading amount, comprehensively Improve product yield and turnover efficiency.

The invention provides a distance measuring device for electric construction, which belongs to the technical field of electric construction tools. One end is set on the back of the tail end of the previous ruler section, the other end of the connecting rod is set on the front of the head end of the latter ruler section, and the ruler section is provided with a cavity with an opening facing the tail end of the ruler section; and a built-in ruler section, which is inserted in the It is in the cavity and used to extend outside the tail end of the ruler segment along the long axis of the ruler segment; the ruler segment, the connecting rod and the built-in ruler segment are respectively insulating material components. The distance measuring device for electric construction provided by the present invention aims to solve the problem that the current measuring tape measure is used to measure the installation position of electric power fittings, the ruler body is prone to bending during measurement, which affects the accuracy of the measurement data, and the technology that is prone to electric shock is used on live cables. question.

The invention discloses a supporting device for a manipulator. The supporting device for the manipulator comprises a supporting arm and an auxiliary arm, wherein the supporting arm is connected to a support on a rear arm part of an upper arm of the manipulator and rotates around a third shaft. The supporting arm comprises a first connecting piece, and the first connecting piece comprises a sealing piece used for mounting and dismounting a cable. The auxiliary arm is connected with a front arm part, the front arm part is mounted on the rear arm part, rotates around a first shaft and is provided with a wrist, and a hand connected with a steering wheel is mounted on the wrist. The steering wheel rotates around a second shaft. The auxiliary arm comprises a second connecting piece, and the second connecting piece is provided with a sealing piece. A spiral spring is arranged on the third shaft of the supporting arm, and a protective sleeve is arranged outside the spiral spring. The cable is arranged between the supporting arm and the auxiliary arm. The supporting device for the manipulator has the beneficial effects that damage to the cable is avoided, and the cable can be allowed to move in the smallest space; and by arranging the connecting pieces, the cable can be allowed to be mounted and dismounted rapidly, the cable bending risk is lowered, the design is simple, and the cost effectiveness is low.

The present invention provides a heating accessory for photographing equipment and the photographing equipment. The heating accessory is used to heat the photographing equipment, including: a heating part, a power supply line, and a power supply connection part; the heating part is connected to the The power supply connection part; the heating part is in the shape of a strip as a whole, and is used to heat the photographing device; the plugging and unplugging orientation of the power supply connection part is in a vertical relationship with the strip-shaped orientation of the heating part. Compared with the prior art, the direction of the heating part and the power connection part of the heating accessories in the prior art is the same, so that in practical application, only by bending the power supply line can the heating part and the power connection part be able to connect with the shooting equipment In combination, the present invention can reduce the risk of bending the power supply line, facilitate the assembly of heating accessories, and improve work efficiency.

The invention discloses a composite down pipe seat. The composite down pipe seat comprises a sleeve, a lower core plate, a lower layer down pipe and an upper layer down pipe seat, wherein the lower layer down pipe seat comprises a frame plate and a foreign matter preventing plate, the foreign matter preventing plate has a filter hole, the foreign matter preventing plate has a screw hole, the foreign matter preventing plate is welded on the lower end of the frame plate, and the sleeve runs through the screw hole in an engagement manner; the lower core plate comprises a plate body, the plate body has a water flow hole, the plate body is provided with a protruded positioning pin corresponding to the sleeve, the positioning pin is provided with an expansion groove, the positioning pin correspondently passes through the sleeve, and the sleeve is in expansion connection with the expansion groove through an expander; a guide pipe is connected with the upper layer down pipe seat; the foreign matter preventing plate is integrated with the lower core plate in an expansion connection way, the hydraulic load of the cooling water suffered by the foreign matter preventing plate can be directly transferred onto the lower core plate, so that the hydraulic load on the fuel assembly can be remarkably reduced, and the bending risk of the fuel assembly can be greatly reduced. In addition, the invention also discloses a nuclear reactor fuel assembly with the composite down pipe seat.