1316results about How to "Improve support stability" patented technology

The invention discloses a five-cylinder plunger pump with an integral power end structure. According to the five-cylinder plunger pump, an integral welding structure is adopted for a crankshaft box body and a crosshead box body in a five-cylinder plunger pump power end assembly, so that the structural strength of the power end assembly is higher, the supporting stability is better, and the whole pump vibration can be reduced; the cylinder spacing is 13-14 inches, the bearing area of connecting rods, crossheads and bearing bushes is increased, a guarantee is provided for the output of the high-power of the five-cylinder plunger pump, the high-power five-cylinder plunger pump can effectively solve the problem that the shale gas fracturing well site area is narrow and the required fracturingequipment is relatively large, the use of equipment can be reduced, and the wellsite arrangement is facilitated; the 11-inches long-stroke design can better realize large-displacement operation requirements and improve the operation efficiency; and according to the multi-point supporting design of crankcase bodies, crosshead box bodies and the hydraulic end assembly, the supporting strength of thefive-cylinder plunger pump can be improved, the vibration is reduced, the high-load operation is better guaranteed, and the operation is more stable.

The invention discloses a pipe end hoop welding and fixing device for an automobile pipe, and belongs to the field of automobile pipe end machining equipment. The device comprises a worktable, a pipe head positioning plate and clamps, wherein the pipe head positioning plate and the clamps are fixed to the worktable. The pipe head positioning plate is provided with a pipe limiting groove and a hoop limiting groove. The clamps comprise a hoop clamp, a lateral pushing pipe clamp and an annular hoop pipe clamp, wherein the hoop clamp can press a hoop arranged outside the automobile pipe in a sleeving mode to the interior of the hoop limiting groove; the lateral pushing pipe clamp is used for pushing the automobile pipe to the interior of the automobile pipe limiting groove to be pressed; the annular hoop clamp is used for clamping and positioning the automobile pipe. The positions of the three clamps are adjustable. The automobile pipe limiting groove and the hoop limiting groove form a step type annular groove. By means of the pipe end hoop welding and fixing device, the pipe end of the automobile pipe and the hoop can be precisely positioned, the pipe end and the hoop can not deviate in the machining process, clamping marks can not be generated on the automobile pipe, and the automobile pipe can not be damaged.

The invention discloses a construction method of earth cabin back filling and cabin entering operation during earth pressure shielding. The construction method comprises the following steps: (1) injecting bentonite slurry outside the casing of a shield machine; (2) injecting polyurethane outside the body of a shield to form a seal ring; (3) injecting two-liquid slurry outside a tube piece to form a seal ring; (4) replacing muck in an earth cabin with bentonite, and carrying out muck replacement through the cooperation of the a bentonite injection system and a spiral conveyer; (5) carrying out pressure injecting on low, middle and high-strength cement bentonite mortar slurry, and allowing the bentonite slurry in the earth cabin to form cumulates with certain strength; (6) injecting slurry to a cutting ring of the shield machine and the top of a cutter head; (7) carrying out cabin entering operation by constructors; and (8) closing an earth cabin door after cutter replacement is completed, injecting and back-filling bentonite to the earth cabin to establish an earth pressure balanced mode to restore tunneling. The construction method disclosed the invention breaks through the difficulty of cabin entering operation below a special unstable formation and the difficulty of cabin entering operation under a building during shielding, and has the characteristics of high efficiency, strong operability and the like.

A method and device for supporting a structure above a fixed surface. The device can include a support pedestal whose height is adjustable through a range of heights without a substantial gap in the obtainable heights. In one embodiment, the support pedestal can include a base member, a support member and a coupling member operatively connecting the base member and the support member. The coupling member can include first and second cylindrical walls, whereby an outer wall of the coupling member bears directly on an outer wall of the base member. Locking members can be utilized to operatively attach the coupling member to at least one of the base member or the support member. The locking members can function to increase the structural stability of support pedestal.

The invention discloses a series-parallel movable heavy load casting robot. The series-parallel movable heavy load casting robot comprises a four-wheel drive type moving platform, a rotation device, a stand column assembly, a lifting drive device, a parallel work arm, a tail end executor and a binocular visual system. Four-wheel omnidirectional wheel drive is adopted in the four-wheel drive type moving platform to achieve long-distance flexible stable walking, a rear hydraulic supporting leg and an adjustable hydraulic supporting leg are used for achieving stagnation point self-balance support, work supporting stability is improved, a robot body has five space motion freedom degrees, the rotation device and the lifting drive device can achieve rotation and lifting adjustment, the four-freedom-degree parallel work arm can carry out posture adjustment on the tail end executor, different tail end executors can be replaced according to work needs, different work needs of core assembling, core discharging, casting, carrying and the like of a large casting can be met, the casting core assembling and discharging and casting work efficiency, quality and safety can be improved, and labor intensity and production cost of operators can be reduced.

The invention discloses a construction method for enabling a shallowly buried and darkly excavated tunnel to pass through a cottage area. The construction method comprises the following steps: excavating a tunnel hole of the constructed shallowly buried and darkly excavated tunnel from back to front through a step excavation process, and performing preliminary bracing on the tunnel hole formed by excavating from back to front in an excavating process, wherein the tunnel hole consists of an upper guide hole and a lower guide hole positioned right below the upper guide hole, the rear part of the tunnel hole is connected with a vertical well, the preliminary bracing structure of the tunnel hole comprises a plurality of grating steel frameworks for supporting the tunnel hole from back to front, a layer of bar-mat reinforcement suspended on the inner wall of the tunnel hole and a concrete layer jetted on the inner wall of the tunnel hole. The process for excavating the tunnel hole of the shallowly buried and darkly excavated tunnel comprises the following steps: I, excavating the initial segment of the upper guide hole; II, excavating the initial segment of the lower guide hole; III, synchronously excavating the upper and the lower guide holes. The construction method disclosed by the invention is simple in step, reasonable in design, convenient in construction, good in construction effect, capable of simply completing the construction process of the shallowly buried and darkly excavated tunnel that passes through the cottage area, and safe and reliable in a construction process.

A carrier support adapted to be attached to an element, preferably a vehicle roof (4), the element being provided with a recess (5) intended for the attachment. The carrier support comprises an anchor element (1) having a head (2) and a shank (3), which head (2) has a first radial extent from the axis of the shank (3) at a first angle which is smaller than the extent of said recess (5) at one angle, and a second radial extent at a second angle which is greater than the extent at said angle of said recess (5). The carrier support further comprises a locking element (6) comprising at least one projection (7) and a hole, the size of the hole being adapted so that the shank (3) of the anchor element (1) is insertable in said hole, the projection (7) being located adjacent to the hole at a distance from the centre of the hole that is at least as great as the smaller extent of the anchor head (1). The carrier support also comprises a second locking element (9) which, in the assembled state, is adapted to lock said locking element (6) with the projection (7) positioned next to the anchor element (1), so that the projection (7) is arranged at the side of the anchor head (2) located the shortest distance from the axis of the shank (3).

The invention relates to the field of ancient building restoration technical equipment, in particular to an ancient building restoration bracket which comprises a plurality of stairs composed of stair telescopic rods and stair rods, a plurality of perpendicular telescopic rods, a hydraulic controller and a base. The hydraulic controller is arranged on the upper surface of the base. The side face of the hydraulic controller is provided with an elongation control button and a shortening control button. The top of the hydraulic controller is provided with a plurality of hydraulic pipes, and the other ends of the hydraulic pipes communicate with hydraulic rods. The perpendicular telescopic rods are arranged on the upper surface of the base. The upper potions and the lower portions of the perpendicular telescopic rods are symmetrically provided with the hydraulic rods. The outer ends of the hydraulic rods are connected with fastening plates which are internally provided with correction plates in a clamped mode. The lower portions of the stair telescopic rods are provided with connecting racks. Adjustment telescopic rods are connected and arranged between the connecting racks and the perpendicular telescopic rods. First connecting shafts are symmetrically arranged on the inner sides of the tops of the stair telescopic rods. The stair telescopic rods and the perpendicular telescopic rods are connected through the first connecting rods. The ancient building restoration bracket is good in supporting effect and convenient to carry and use.

The invention discloses a high-temperature furnace roller for a CSP (Compact Strip Production) heating furnace. The high-temperature furnace roller comprises a tubular roller body steel shaft, wherein the outer wall of the roller body steel shaft is provided with roller rings at intervals; the outer wall of the roller body steel shaft between adjacent roller rings is provided with a heat-insulating lining; a water-cooling pipe is arranged in the roller body steel shaft; one end of the water-cooling pipe is provided with a water-cooling pipe supporting clamp seat; a roller body end head baffleplate which is hermetically connected with the inner wall of the roller body steel shaft is arranged outside the end part of the water-cooling pipe supporting clamp seat; a first cavity is formed between the roller body steel shaft and the water-cooling pipe; the pipe wall of the water-cooling pipe close to the water-cooling pipe supporting clamp seat is provided with water outlet through holes which are uniformly distributed along circumference; and the water outlet through holes are communicated with a water inlet end in the water-cooling pipe and the first cavity to form a closed water path. The high-temperature furnace roller has the advantages of simple structure, convenience and quickness in manufacturing, convenience in use and maintenance, low cost, application temperature reaching up to 1,300 DEG C and suitability for being widely applied to the technical field of thermal equipment of industrial furnaces.

The invention discloses a ground fracture crushed zone passing construction method for shallow-buried tunnel excavation. A constructed shallow-buried excavation tunnel comprises a left line tunnel and a right line tunnel which are communicated through a transverse channel. During construction of the constructed shallow-buried excavation tunnel, the method comprises the steps that 1, transverse channel construction is performed; 2, tunnel construction is performed, wherein the two tunnel sections of the left line tunnel and the right line tunnel are constructed through the transverse channel, the construction is performed in the mode of multiple tunnel sections in the longitudinal extending direction of the tunnel from back to from during construction of any one tunnel section, and the construction of any one tunnel section includes the processes of ground fracture judgement, tunnel excavation and synchronous preliminary bracing construction, concrete protection layer construction, post-cast strip retention judgement, secondary tunnel lining construction and post-cast strip construction. The method includes simple steps and is reasonable in design, convenient to construct, good in construction effect, capable of simply and conveniently completing the shallow-buried tunnel excavation construction process of a ground fracture crushed zone and safe and reliable in construction process.

The invention discloses a multi-cam self-adaptive multi-gear automatic transmission. The transmission comprises a box body, a power input shaft, a power output shaft, a self-adaptive variable-speed high gear assembly, a first gear assembly and a self-adaptive variable-speed n-gear assembly, wherein the output revolving speed of the n-gear assembly is lower than that of the high gear assembly and higher than the first gear assembly, and the n-gear assembly comprises a second gear, a third gear......and an nth gear. The multi-cam self-adaptive multi-gear automatic transmission has all the advantages of an existing cam self-adaptive automatic transmission, and is of a multi-cam multi-gear structure, therefore, sensitivity in the gear shifting process is ensured, jerking and jam during gear shifting are eliminated, driving comfort is improved, furthermore, energy is saved and consumption is reduced; the dynamic property, economical efficiency, driving safety and driving comfort of a vehicle are greatly improved. In addition, by means of the power output shaft, cams and the cooperative relationships among the cams, a cone clutch is locked after separation, elimination of the transmission gaps among transmission components is facilitated, transmission precision and efficiency are improved, and drive energy is saved.

The invention relates to the technical field of steel pipe welding clamping, and discloses a seamless steel pipe clamping mechanism. The seamless steel pipe clamping mechanism comprises a base; the base is a hollow mechanism; two clamping devices are symmetrically arranged above the base; and a moving mechanism for butt joint with the two clamping devices is arranged in the base. The seamless steel pipe clamping mechanism can improve the seamless steel pipe clamping effect, and meanwhile, can improve the seamless steel pipe butt welding stability.

The invention discloses a cooking appliance with a frying function, belongs to the field of kitchen household appliances, and solves the problems of uneven heating temperature, poor taste of food materials and the like of the existing air fryer and other cooking appliances with related functions. The cooking appliance with the frying function comprises a pot body and a pot cover, wherein the pot body has an upper open cooking chamber, a frying basket contained in the cooking chamber, and a ventilation gap is formed between the frying basket and the cooking chamber. The pot cover is provided with a hot air device including a fan, and a plurality of arc-shaped wind guide ribs are radially distributed between the bottom of the frying basket and the bottom of the cooking chamber. The bending direction of the arc-shaped wind guide ribs coincides with the rotating direction of the fan. Through the arrangement of the arc-shaped wind guide ribs, the hot air fluidity in the ventilation gap is improved, the wind energy loss is reduced, and the hot air circulation is accelerated, so that the purpose of uniform and efficient heating is achieved.

The invention discloses a passion fruit linear type filling machine. The passion fruit linear type filling machine comprises a conveying mechanism, a stirrer, a filling mechanism and metering cylinders. The conveying mechanism is installed on the transverse front side of the upper end of a base, and a bottle opening limiting mechanism and the filling mechanism are installed on the front side and the rear side of the middle of the conveying mechanism. The filling mechanism is connected to the discharging ends of the metering cylinders through pipelines, and the feeding ends of the metering cylinders are connected to the bottom of the stirrer. The stirrer is fixedly connected to the rear side of the base through a supporting frame, piston rods of the metering cylinders are connected with a metering adjusting mechanism, and the metering adjusting mechanism is installed on the base. The metering adjusting mechanism in the passion fruit linear type filling machine adjusts the stir uniform feeding of the stirrer and the discharging operation of the metering cylinders and controls the feeding operation of the metering cylinders, and after the metering cylinders are filled with passion fruit juice, the filling mechanism is controlled to multiple filling bottles conveyed by the conveying mechanism to conduct discharging and filling operation. The bottle opening limiting mechanism is adopted to conduct automatic quick limiting, the bottles are pushed to the filling positions to be subjected to quick filling, and therefore the bottle output waiting time is shortened, and the production efficiency is improved.

The invention provides a double-point elastic supporting cylinder vortex induced vibration fluid kinetic energy conversion device, relates to a fluid kinetic energy conversion device, and aims at solving problems that existing wave energy power generation devices are complex in structure, narrow in power generation frequency band, inflexible in power generation mode and low in float energy efficiency. The double-point elastic supporting cylinder vortex induced vibration fluid kinetic energy conversion device comprises a vibration excitation beam and two vibration exciters. The two vibration excitation power generators are arranged at the two ends of the vibration excitation beam in parallel. Each vibration excitation power generator comprises a connecting plate, a sealing cover, a guide column, a pedestal, two vibration columns, two vibration excitation permanent magnets, two vibrated permanent magnets, two cantilever beam piezoelectric float energy devices and four springs. The guide column is arranged on the pedestal. A cavity is formed between the lower end surface of the guide column and the upper end surface of the pedestal. The two ends of the vibration excitation beam are respectively connected with the two connecting plates. The double-point elastic supporting cylinder vortex induced vibration fluid kinetic energy conversion device is used for power generation.

The invention relates to the technical field of building construction, in particular to a building construction formwork surface cleaning device based on a multi-layer reciprocating brushing mechanism. The device comprises a building formwork and a surface cleaning mechanism at the outer side of the building formwork; the surface cleaning mechanism at least comprises a supporting device, a clamping device, and a brushing device; the brushing device comprises a cleaning frame; the clamping device is located in the cleaning frame; a conveying screw is rotationally arranged at the top of an inner cavity of the cleaning frame; the outer wall of the conveying screw is in threaded connection with a reciprocating block; a supporting plate is arranged at the bottom of the reciprocating block; an electric push rod is embedded in the bottom of the supporting plate; a connecting plate is fixedly connected with the push rod end of the electric push rod; two symmetrical fixed brush plates are arranged at the bottom edge of the connecting plate; a plurality of static brushes are arranged at the bottoms of the fixed brush plates; a rotating brush plate is rotationally arranged in the center of the bottom of the connecting plate; and a plurality of rotating brushes are arranged at the bottom of the rotating brush plate. According to the building construction formwork surface cleaning device based on the multi-layer reciprocating brushing mechanism, impurities on the surface of a building formwork can be conveniently brushed away, and the building formwork can be accurately clamped and fixed.

The invention discloses an early-detaching combined template system, comprising a plurality of support pillars and a template assembly. An early-detaching mechanism is arranged on each support pillar, and a top plate and a bracket of the early-detaching mechanism are both in right angle quadrilateral shapes. The brackets of a plurality of early-detaching mechanisms support the template assembly, and the top plates of the plurality of early-detaching mechanisms and the template assembly form a lower support mould of a pouring body. The template assembly comprises a plurality of rectangular beam components and plurality of rectangular template components, wherein the beam components are supported on the brackets, and cross convex-concave lap joint and matching structures are formed between the beam components and the brackets. The plurality of beam components form at least one right angle quadrilateral frame through the brackets, and the template components are positioned in the right angle quadrilateral frame formed by the beam components. A convex-concave matching and lap joint structure is formed between the end part of each template component and the side part of each beam component. The early-detaching combined template system has the beneficial effects that for building and detaching the templates, labor intensity is low, the efficiency is high, the supporting stability is good, use is safe, and force for transition and transport is saved.

The invention mainly discloses a tooling fixture for auto parts welding, which includes a workbench on which left and right symmetrical auxiliary clamping parts are arranged. The auxiliary clamping parts include a fixing plate, a clamping cylinder, a clamping plate and a limiting plate. The rear side of the auxiliary clamping part is provided with a main clamping part, and the main clamping part is fixedly connected with the workbench through a T-shaped mounting plate. The main clamping part includes a first clamping group and a second clamping group, and the first clamping The group includes a limit cylinder, a driving wheel, a driven wheel, a rotating shaft, a limit clamp and a sliding plate, and the second clamping group includes a telescopic cylinder, a U-shaped plate and a rotating splint. The invention has strong practicability, more automatic use and operation, and improves the structure according to the welding requirements and shape diversity of parts in auto parts, so that the design of the fixture is more targeted, and it is more suitable for the welding and clamping of auto parts, so that Auto parts have better welding quality and higher structural strength.

The invention discloses a tabletop hoisting type sink. The tabletop hoisting type sink comprises a sink body and a platform plate, wherein the sink body is provided with a tabletop and the sink body arranged below the tabletop; a water discharging opening and a water discharging pipe are arranged at the bottom of the sink body; the edge of the top of the water discharging opening is connected witha water receiving sleeve which is hollow and is provided with a top opening; the inner part of the water receiving sleeve is communicated with the water discharging opening; a peripheral wall of theplatform plate is in sealed fitting with an inner side wall of the sink body; the platform plate is provided with a water leakage hole; the water leakage hole is internally and movably connected witha plunger piston; the lower end of the plunger piston stretches out of the bottom part of the platform plate and an elastic part sleeves the lower end of the plunger piston; the elastic part is used for closing the waster leakage hole by the upper end of the plunger piston under a normal state; when the platform plate is hoisted to the bottom of the sink body, the top of the water receiving sleeveis used for upward jacking the lower end of the plunger piston so that the water leakage hole is opened and the water leakage hole is communicated with the inner part of the water receiving sleeve. The tabletop hoisting type sink disclosed by the invention has a washing function and also can be used as the tabletop, so that more kitchen space can be obtained and functions are diversified.

The invention belongs to a support for a reactor pressure vessel of a nuclear power station, and particularly relates to a support which can fix the pressure vessel around the pressure vessel, guard against earthquake and other impact loads and meanwhile allow a part of dimensional change caused by temperature change of the pressure vessel. The support comprises four modularized seats which are uniformly arranged around the reactor pressure vessel, wherein the bottoms of the seats are fixedly arranged on a concrete foundation. The support has the advantage that the interference of a support structure or support foundation concrete and a vessel connecting pipe can be effectively avoided by arranging the independent support seats on the outer wall of the pressure vessel and arranging the modularized seat support structure. By using modularized manufacturing, transportation and mounting and through combined use of a plurality of modules, a main pipeline of the pressure vessel can be kept away; and the support position is arranged close to gravity elevation of the pressure vessel, so that the stability, the safety and the economy of the support are improved.

The invention discloses a display panel. The display panel comprises an oppositely-arranged first display substrate and a second display substrate, as well as a primary spacer and an auxiliary spacer, which are arranged between the first display substrate and the second display substrate, and is characterized in that the primary spacer and the auxiliary spacer are arranged on the first display substrate, or the primary spacer and the auxiliary spacer are arranged on the second display substrate, in addition, the end surface of one suspension end of the at least one auxiliary spacer is the plane surface, and/or the end surface of one suspension end of the at least one auxiliary spacer is the convex surface. In the display panel provided by the invention, the supporting stability of the auxiliary spacer is higher. The invention further provides a half-tone mask plate for preparing the display panel and the preparation method of the half-tone mask plate. The invention further provides the preparation method of the display panel and a display device adopting the display panel.

The invention discloses a magnetic gear. According to the invention, the front end cover is fixedly arranged on a motor housing. The internal rotor and the magnetism-adjusting support plate are connected to the front end cover and the motor rotor in a rotation manner through a fourth bearing and a third bearing respectively. The magnetism-adjusting support plate is connected with the front end cover through a magnetism-adjusting iron core. The back rack and the front rack are connected to the front end cover and the motor rotor in a rotation manner through a second bearing and a first bearing; and the front rack and the back rack are fixedly connected with the two end faces of the external rotor. The first press ring and the second press ring are fixedly arranged on the back rack and the front end cover respectively; and the second press ring and the first press ring abut against the inner ring and the outer ring of the second bearing respectively. The brake component is sleeved on the motor rotor and is located inside the internal rotor. The magnetic gear of the invention has a reasonably designed structure, and the support performances of the various components are good; the installation space for the various components is reduced; and therefore, the overall structure of the magnetic gear is reduced.