16results about How to "Small inertia force" patented technology

The invention discloses an impact type rotating wheel hollow water bucket structure and a manufacturing method thereof, and relates to the technical field of hydroelectric power generation, in particular to the manufacturing method of the impact type rotating wheel hollow water bucket structure, which comprises the following steps: S1, preparing an impact type rotating wheel hub and a water bucket root solid area through forging, milling, polishing and other process means; s2, calculating a water bucket hollow part model through the working stress of the rotating wheel; and S3, the prepared rotating wheel hub is clamped to a positioner, and according to the model calculated in the above steps, the additive manufacturing of the rotating wheel hollow water bucket is achieved by continuously and cooperatively adjusting the spatial position of the rotating wheel and the posture of a welding gun. The invention has the advantages of reducing the weight, improving the stability, reducing the inertia, prolonging the service life, saving the cost, promoting the sustainable development, optimizing the structural design, improving the performance, improving the efficiency, reducing the energy consumption, being convenient to manufacture and maintain and enhancing the adaptability.

The present invention relates to the technical field of lifting equipment, and specifically provides a lifting device for containers, comprising two slide rails arranged parallel to each other, a gantry is slidably arranged on the slide rails, a limiting mechanism is arranged at the end of the slide rails, the limiting mechanism comprises a first deceleration block and a second deceleration block, the first deceleration block is elastically and telescopically arranged on the gantry, and the second deceleration block is elastically arranged at the end of the slide rail, and multi-stage deceleration of the gantry is achieved by arranging the first deceleration block and the second deceleration block, so that the gantry can gradually slow down when it stalls in windy weather, which can effectively reduce the inertia force, thereby reducing the damage of the gantry to the track, and at the same time can effectively prevent the gantry from leaving the slide rail, and clamping components are arranged on both sides of the second deceleration block to increase the friction of the second deceleration block, thereby improving the deceleration effect of the second deceleration block, and can more efficiently stop the gantry.

The invention provides a fixed clearance return stroke type high-speed axial plunger pump, and relates to the field of axial plunger pumps, the fixed clearance return stroke type high-speed axial plunger pump comprises a shell and a main shaft capable of rotating in the shell, the main shaft drives a cylinder body and an impeller to rotate, an axial channel is arranged in the cylinder body, a pre-tightening spring is arranged in the axial channel and provides pre-tightening force for a return stroke disc, and a plunger body can reciprocate in the axial direction. The end part of the plunger body is matched with the sliding shoe to slide on the swash plate, and a return stroke assembly is further arranged and comprises a return stroke plate, a fixed gap pressing plate and a fixing device; the return plate is limited between the fixed-gap pressing plate and the sliding shoe and arranged with the fixed-gap pressing plate in a spaced mode, and the fixing device is used for fixing the fixed-gap pressing plate to the swash plate. The return stroke assembly with the fixed gap is adopted, the problem that the sliding shoe excessively inclines and even disengages in the return stroke process is avoided, meanwhile, the return stroke disc utilizes the pre-tightening force of the center spring, and it is ensured that the sliding shoe is flexibly attached to and sealed with the swash plate under the low-speed working condition; the fixed gap pressing plate balances the centrifugal overturning moment of the sliding shoe through physical limiting under the high-speed working condition.

The utility model discloses a sliding rail type roof equipment mounting structure, and relates to the technical field of vehicle-mounted equipment. Comprising a platform base plate which is provided with a sliding rail, extends in the length direction of the platform base plate and is used for clamping roof equipment in a sliding mode; the locking mechanism is arranged on the platform base plate and located on the sliding path of the roof equipment, the locking mechanism is provided with an unlocking handle, and the unlocking handle is located at one end of the platform base plate; the ejection mechanism is arranged on the platform base plate, located on the sliding path of the car roof equipment, capable of driving the car roof equipment to move back in the length direction of the installation sliding rail and capable of ejecting the car roof equipment in the state that the car roof equipment slides to the set position in the length direction of the installation sliding rail. Transverse movement of the roof equipment is limited through the locking mechanism and the pop-up mechanism, the pop-up mechanism stores energy, and limitation of the locking mechanism to the roof equipment can be relieved by pulling the unlocking handle. According to the utility model, the roof equipment can be safely and quickly disassembled and assembled.

The invention discloses a firing mechanism and a hammer-type nail shooter with the firing mechanism, which relates to the field of nail-shooting fastening equipment, and includes a firing pin sleeve, a firing pin and a hammer for firing the firing pin; a resistance spring is arranged between the hammer and the firing pin sleeve. The invention prevents the firing pin from hitting the nail bullet when the nail shooter is in free fall, so that the nail shooter cannot be fired, which not only meets the national standards of my country, but also makes the structure of the firing mechanism simpler, the cost lower, the assembly more convenient, and the stability higher.

The utility model relates to a kind of winding equipment for CPP film, relate to film production technical field, including frame, motor being set on frame, winding roller for driving film winding driven by motor, double-layer compression roller for flattening film is set on frame, it is characterized by: frame is provided with edge curling flattening mechanism, edge curling flattening mechanism includes connecting sleeve, the ball abutting in connecting sleeve, the abutting plate for supporting film is set on frame, longitudinal telescopic component for driving ball to press film is set on abutting plate, and horizontal telescopic piece for driving ball horizontal movement is set between connecting sleeve and longitudinal telescopic component. The utility model can pass through edge curling flattening mechanism, before film enters double-layer compression roller, to the preliminary flattening and correction of edge curling portion, by pre-treatment edge curling, can prevent edge curling portion from being excessively extruded when entering compression roller, to avoid edge curling problem deterioration.

The application discloses a steam turbine moving blade root weight-reducing structure, a steam turbine moving blade and a manufacturing method thereof. The steam turbine moving blade root weight-reducing structure comprises a fir-type blade root and a blade root intermediate body connecting a blade body and the fir-type blade root, and a weight-reducing groove is arranged on the inner arc side of the blade root intermediate body. The opening area of the weight-reducing groove accounts for 60%-40% of the area of the inner arc side without the weight-reducing groove. After the assembly of adjacent blades is completed, the contact area of the inner arc side of the blade root intermediate body accounts for 40%-60% of the contact area of the inner arc side of the blade root intermediate body without the weight-reducing groove. The application has the advantages that the average stress level of the blade root area can be effectively reduced, the manufacturing cost of the blade is reduced, the processing difficulty of the blade is not increased, the blade root weight can be reduced, the strength and rigidity of the blade root can be effectively ensured, and the like.

The utility model discloses an overrun clutch which comprises an inner retainer, an outer retainer, an inclined supporting block and a wave spring, the inner retainer is located in an inner cavity of the outer retainer, the wave spring is arranged between the inner retainer and the outer retainer, and the inclined supporting block is located in an inner window of the inner retainer and an outer window of the outer retainer. An annular groove I is formed in one side of the inner wall of the inner retainer along the circumference, an inner damping strip is arranged in the annular groove I, an annular groove II is formed in one side of the outer wall of the outer retainer along the circumference, and an outer damping strip is arranged in the annular groove II. The outer damping strips and the inner damping strips are in non-rigid connection with the corresponding outer roller paths and the corresponding inner roller paths through friction contact, the influence of inertia generated by high-speed rotation during switching of the working states of the overrun clutch is reduced through friction force, the slipping situation is reduced, and the response speed of the overrun clutch is increased.

The utility model relates to a water spraying cooling tower technical field discloses a kind of cooling tower filler bracket and cooling tower, cooling tower filler bracket includes: several transverse parallel arrangement's pull rod, several longitudinal parallel arrangement's square tube, several connecting structures, pull rod, square tube inside are all hollow, and the section of pull rod, square tube is all rectangular, and square tube is connected with two adjacent pull rod by a connecting structure;Connecting structure includes: buckling part and the supporting part of symmetrical being equipped with in the buckling part two sides, buckling part is equipped with buckling slot on, square tube is correspondingly clamped in buckling slot, supporting part is equipped with clamping slot on, pull rod is correspondingly clamped in a clamping slot;The cooling tower filler bracket in the present application is not easy to collapse, and overall weight is lighter, and it is convenient to install.

The utility model discloses a prefabricated assembly type bent cap and pier connecting structure, including pier, bent cap and vertical connecting piece, the top of pier has seted up first recess, the bent cap is prefabricated component, and bent cap is located on the pier, the bottom of bent cap has seted up second recess, and second recess and first recess interfit and form bottom pouring cavity, the middle part of bent cap is equipped with the center pouring cavity that passes through up and down, and the bottom of center pouring cavity communicates with bottom pouring cavity, is equipped with the shear body that is by mortar pouring and forms in bottom pouring cavity and center pouring cavity, the lower extreme of vertical connecting piece is located in the pier, and the upper extreme of vertical connecting piece stretches into in the bent cap, the utility model discloses still discloses a bridge structure, the beneficial effect of the utility model is: the bent cap in the utility model is prefabricated structure, after transporting to the construction site, can complete construction to the pouring cavity in injection mortar, and the construction process is quick and convenient, has greatly shortened the construction period, has reduced the influence of construction to the surrounding environment.

The present invention provides an electromagnetic Hopkinson bar system with a stroke protection device and a protection method. The electromagnetic Hopkinson bar system with a stroke protection device includes a waveguide rod system, a loading frame system, an electromagnetic loading frame, an electromagnetic launch gun, a U-shaped base and a stroke protection device; the protection method is: the stroke protection device realizes the stroke protection of the waveguide rod by limiting the waveguide rod boss structure, and buffers the energy of axial movement through the springs at the four corners of the stroke protection plate, and the springs at the four corners of the protection plate respectively have corresponding adjustment nuts, and the adjustment nuts are adjusted according to experimental conditions. During the test process, the waveguide rod produces a large displacement under the action of impact force, and the protection device can play a role in protecting the waveguide rod.

The present invention relates to the field of offshore wind power technology, and discloses an offshore floating wind turbine foundation and an offshore wind turbine generator. The offshore floating wind turbine foundation includes a wind turbine set, a support structure and a floating platform. The support structure includes a main support rod arranged upright and at least two auxiliary support rods arranged obliquely. The top ends of the main support rod and all the auxiliary support rods are gathered to form an installation platform, and the wind turbine set is connected to the installation platform; the floating platform includes at least three floating devices, and the floating devices are connected to the bottom end of the support structure one by one. The present invention supports the wind turbine set by arranging a support structure, replacing the traditional tower structure with a larger diameter. The support structure has high rigidity, strong anti-deformation ability, small top acceleration, and significantly reduced inertial force on the structure; and the weight of the upper structure is significantly reduced, so the buoyancy required to be provided by the float is reduced, and the weight of the floating platform supported by the lower part is also reduced, further reducing the construction cost of the structure.

The present invention discloses a valve-controlled constant damping adjustable fluid inertia suspension device, which is based on a double-rod hydraulic cylinder and realizes the switching of two fluid pipelines through a high-speed switch valve. The structural parameter design ensures that when the fluid flows through any fluid pipeline at high speed, the expected inertia force and damping force are generated, the adjustment of the inertia force and the damping force are independent of each other, and the damping force is constant. A spiral tube is provided, and the fluid flows from one side of the hydraulic cylinder barrel to the other side through the spiral tube to form a first fluid pipeline. A short straight tube with a damping hole is provided, and the fluid flows from one side of the hydraulic cylinder barrel to the other side through the short straight tube with the damping hole to form a second fluid pipeline. The present invention is suitable for the harsh working conditions of military vehicle suspension devices, and the two working pipelines can be switched through switch control to adjust the inertia and damping characteristics of the suspension, thereby greatly improving the vibration reduction performance of the suspension device, and has good application value.

The application discloses an electronic disconnecting device, and relates to the technical field of automobile transmission, which comprises a shell assembly, a driving assembly, a transmission assembly, a shift fork assembly and a driving shaft assembly. The driving shaft assembly is installed in the shell assembly, and the shift fork assembly is also installed on the shell assembly and connected with the driving shaft assembly. The driving assembly is connected with the shift fork assembly through the transmission assembly, the driving shift fork body moves along the axial direction of the driving shaft assembly, and the disconnecting or combination of the driving shaft assembly is realized. The transmission assembly is composed of a rotation-rotation conversion assembly and a rotation-straight line conversion assembly, wherein the rotation-rotation conversion assembly comprises a worm wheel and a worm, the driving assembly is connected with the worm to drive the rotation of the worm, and the worm wheel is engaged with the worm and rotationally installed on the shell assembly. The rotation-straight line conversion assembly is connected with the worm wheel and the shift fork assembly, and converts the rotation movement of the worm wheel into the straight line movement of the shift fork assembly. Through the improvement of the transmission assembly, the problems of limited motor arrangement direction, large inertial force and complex structure are solved.

The invention relates to the technical field of pistons, and provides a lightweight forged steel piston which comprises a piston head, a piston skirt and a piston pin seat, and is characterized in that a piston face window is formed in the piston skirt and provided with a fence type weight reduction cavity, and the fence type weight reduction cavity is located above a piston pin hole; the fence type weight reduction cavity penetrates through the piston skirt part in the direction of the piston pin hole; two sides of the piston pin hole are respectively provided with a main thrust side skirt wall and a secondary thrust side skirt wall, and the center of the piston pin hole is deviated towards the main thrust side skirt wall; the outer circle of a piston skirt part which is circumferentially connected with the piston outer pin seat and the piston face window is retracted inwards and is in smooth transition connection with the main thrust side skirt wall and the secondary thrust side skirt wall respectively; and the thickness of the main thrust side skirt wall is greater than that of the secondary thrust side skirt wall. According to the technical scheme, the weight of the piston is reduced, meanwhile, noise and vibration generated when the diesel engine works are reduced, meanwhile, the cooling effect is good, and movement of the piston in the air cylinder is more stable.

The invention belongs to the technical field of mud scraper over-twist protection, and provides a mud scraper over-twist protection device which comprises a motor, the motor is fixedly connected with a fixing frame, an output shaft of the motor is fixedly connected with a rotating shaft, the rotating shaft is sleeved with a sleeve, the bottom of the rotating shaft is fixedly connected with a fixing sleeve, and the top face of the fixing sleeve is a rubber pad. A telescopic sleeve is arranged in the fixing sleeve, the rotating shaft is sleeved with the telescopic sleeve, one end of the telescopic sleeve is fixedly connected with the fixing sleeve, the other end of the telescopic sleeve is rotationally connected with the sleeve, and a connecting mechanism is arranged between the rotating shaft and the top of the sleeve. According to the device, when an external load jointly borne by all the scrapers exceeds a set pressure value, the clamping blocks are clamped in the clamping grooves, the first fluted disc and the second fluted disc are separated from each other, and fixation between the rotating shaft and the sleeve is relieved; and when the pressure sensor is pressed, the control module controls the motor to stop rotating, so that the motor is protected.