14results about How to "Reduce partial load" patented technology

The invention provides a grinding, spraying and rolling composite surface machining method for a gear tooth surface, which comprises the following steps of: determining the overall maximum elastic deformation of a gear to obtain a modified theoretical involute gear tooth profile; by means of the micro-line-segment theory, a micro-line-segment type involute gear tooth profile is obtained; by means of non-linear smooth fitting, a final modified involute gear tooth profile is obtained, and an initial gear is obtained through machining; on the basis of the initial gear, a gear shot blasting impact model is built, and a shot blasting gear is obtained; and on the basis of the shot blasting gear, a gear finishing and grinding model under gear tumbling finishing machining is built, and a finished gear is obtained. Grinding, shot blasting and barreling finishing are combined, through process coupling design, the overall performance of the gear is improved, higher manufacturing precision is achieved, the failure risk is reduced, the service life of the gear is prolonged, and the gear has the practical application value.

The application relates to a quick dismounting structure and method for a heavy mold, and relates to the technical field of mold manufacturing. The quick dismounting structure comprises a mounting mold frame and a heavy mold arranged on the mounting mold frame. The mounting mold frame comprises a lower mold base for supporting the heavy mold, an upper mold frame, and a wedge block assembly wedged between the heavy mold and the mounting mold frame. The heavy mold is provided with an upper mounting portion and a lower mounting portion. The lower mounting portion is provided with a lower guide surface inclined towards both sides of the heavy mold from top to bottom. The upper mold frame is provided with an upper mounting groove matched with the upper mounting portion for locking. The lower mold base is provided with a lower mounting groove matched with the lower mounting portion for locking and a push assembly slidably arranged on both sides of the lower mounting groove. The push assembly comprises an ejection unit arranged on one side of the lower mounting portion and a push-in unit arranged on the other side. The ends of the ejection unit and the push-in unit are respectively parallel to the corresponding lower guide surfaces. The application can improve the quick dismounting effect of the heavy mold and the mold frame support.

The utility model relates to cast steel equipment technical field, concretely is a kind of vibration mechanism for continuous casting crystallizer, it includes: base, the top surface of base is fixedly connected with two side plates;Vibration frame, it is located above base and is used to install crystallizer body;Eccentric rotation drive assembly, it is provided with two, respectively install in the inner side wall of two side plates, the eccentric rotation drive assembly includes crank and connecting rod, the crank is rotatably connected with its corresponding side plate, one end of the connecting rod is hinged with the eccentric part of crank, the other end of the connecting rod is hinged with vibration frame, the rotary motion of the crank is converted into reciprocating linear motion of vibration frame by connecting rod. In the utility model, by adopting symmetrical eccentric rotation drive assembly, make vibration frame stress balance, effectively reduce eccentric load and sway, improve motion synchronism, and eccentric rotation drive assembly drives vibration frame pure mechanical drive, need not hydraulic station or complex transmission chain, system structure is simple, maintenance workload is significantly reduced.

The application discloses a servo cut-off valve group, which comprises a first valve body and a second valve body integrated on a valve seat. Both the valve bodies are provided with valve cavities, and the valve cavities are internally provided with valve spools driven by a servo motor through a screw rod. The valve bodies are provided with outer ring channels communicated with inlet and outlet of the valve seat on the side surfaces, the outer ring channels are communicated with the valve cavities through a plurality of uniformly distributed lateral flow channels, and the inner walls of the valve cavities are further provided with inner ring channels. The longitudinal flow channels at the bottoms of the two valve cavities are communicated with each other through channels in the valve seat. When the two valve spools synchronously rise above the lateral flow channels, fluid can sequentially pass through the flow channels, and the valve is opened; when the two valve spools synchronously descend to completely cover the lateral flow channels, the valve is closed. The two valve cavities are communicated at the bottoms to form a pressure balance cavity, so that the valve spools are hardly subjected to axial thrust when the valve is closed, and high pressure is converted into sealing force in the radial direction of the valve spools, thereby fundamentally solving the high pressure leakage problem of traditional cut-off valves, and the application is especially suitable for high pressure equipment such as filter presses.

The invention discloses a differential clamping vibration type walnut picking machine, which relates to the technical field of agricultural machinery, and comprises a walking mechanism for driving the whole machine to move, a transmission system for realizing the advancing, retreating and steering movement of the walking mechanism, and a truss rotating mechanism for realizing the left and right 90-degree free rotating movement of a truss operation platform, the truss operation platform is fixedly connected with the truss rotation mechanism, the diesel engine provides power for the whole machine, the suspension arm structure system is used for achieving suspension supporting and space positioning of the vibration excitation device, and the vibration excitation device is used for achieving vibration on a tree trunk. While ensuring reliable harvesting of fruits, the device has the advantages of compact structure, cost and installation space saving, adjustable excitation intensity, stable operation, reduction of damage to branches and fruits, reduction of machine moving alignment preparation time and the like, and the continuous operation capability and the picking efficiency are improved.

The utility model belongs to capstan technology field provides a kind of electric capstan, comprising: support frame, rotatably arranged with drum thereon;Driving part, it is set on support frame;Reduction assembly, it includes oppositely arranged first reduction part and second reduction part, and connecting the shaft between first reduction part and second reduction part, first reduction part is arranged in the one end of drum along the axial direction, and is connected between the output end of driving part and shaft, second reduction part is arranged in the other end of drum along the axial direction;Transmission part, it is movably arranged between second reduction part and drum.Compared with prior art, the utility model is through setting reduction part in the both ends of drum and being connected by shaft, realizes bilateral power input, improves the stress uniformity of drum, improves structural stability and service life;At the same time, through movable transmission part, the switching of electric and manual mode is realized, and the rope can be quickly released in manual mode, and electric energy is saved.

The invention discloses a counterweight-free overhanging type hanging basket module and a construction method, and relates to the technical field of building construction. The counterweight-free overhanging type hanging basket module comprises an overhanging supporting assembly, a first rope and a hanging basket elevator, the cantilever supporting assembly comprises a base, a cantilever beam, a stand column and a diagonal draw bar. The outrigger is pressed on the top surface of the base and is connected with the stand column; the cantilever beam is transversely arranged; the other end of the diagonal draw bar is connected with one end, far away from the base, of the cantilever beam; one end of the first rope is connected with the hanging basket elevator and the other end is connected with the shear wall; the middle of the first rope is in lap joint with the overhanging supporting assembly. The overhanging supporting assembly supports the first rope and the hanging basket elevator, so that the hanging basket elevator can move longitudinally and does not collide with an outer wall, and construction personnel and building materials are transferred. And one end, far away from the hanging basket elevator, of the first rope is connected with the shear wall, so that the use of a balancing weight is avoided, the longitudinal space is not required, and more excellent environmental compatibility is achieved.

This invention discloses a crusher crushing plate stroke adjustment transmission device, including a frame, a rotor assembly, a crushing plate, and a stroke transmission assembly. The crushing plate includes an upper crushing section and a lower crushing section distributed along the material flow direction, which are connected by a hinge structure. The stroke transmission assembly includes a drive motor, a worm gear reducer, and an adjusting screw. The adjusting screw passes through the frame and is connected to the crushing plate through a ball-end self-aligning connection structure. A guide floating sleeve is provided between the adjusting screw and the frame. When the crushing plate undergoes an angle change during operation, the ball end can generate relative rotation within the self-aligning seat, thereby adapting to and compensating for the angle change. Through the synergistic effect of the above structures, the off-center load on the adjusting screw can be reduced during crushing plate adjustment, improving the operational stability of the adjustment mechanism under impact conditions.

The utility model discloses a kind of hydraulic retarder shafting structures, including a pair of outer spline hollow flange plate, retarder spline shaft, a pair of tapered roller bearings, a pair of shaft sleeve, stator, rotor, retarder shell, tension bolt, flange nut, multiple oil seals, O-ring and a pair of gland cap.The utility model retarder shafting structure makes retarder can be assembled as independent individual on whole vehicle drive train, improves selection flexibility, reduces matching application cost;Realize that retarder is matched as a separate whole, does not need to be integrated on gearbox, reduces concurrent fault brought by combination assembly with gearbox.

The utility model provides a straight gear worm shaft one-way fixing structure. The straight gear worm shaft one-way fixing structure comprises a straight gear worm shaft located in a shell. A threaded plugging block is arranged in the side wall of one side of the shell; one end of the straight gear worm shaft is a straight gear, and the other end of the straight gear worm shaft is a worm; a bearing hole is formed in the straight gear and is used for mounting a tapered roller bearing; the worm is connected with a pressing block through a sliding bearing, and the pressing block is connected with the side wall of the other side of the shell. One end of the tapered roller bearing is axially fixed through an axial retainer ring for a hole, and the other end of the tapered roller bearing is fixed by pressing the bearing mounting shaft through a supporting screw. According to the utility model, the tapered roller bearing is arranged in the straight gear and is axially fixed through the supporting screw, so that the space volume of the speed reducer can be greatly reduced; after the supporting screw is screwed out, the straight gear worm shaft can be detached, the axial position of the straight gear worm shaft can be adjusted by adding or reducing the adjusting gasket, and therefore unbalance loading of the worm caused by machining errors and installation errors is reduced.

The utility model relates to a kind of semi-direct drive cutting unit driving system, it is related to engineering machinery technical field, it includes support and gear box part assembly.Gear box part assembly includes motor assembly and two gear box assemblies;Motor assembly has two output parts arranged in the extension direction of preset axis and can rotate around preset axis, and motor assembly is installed in support;Two gear box assemblies are connected with support and distributed in the extension direction of motor assembly on both sides of preset axis;The input end of two gear box assemblies is respectively connected with two output parts transmission, and the output end of two gear box assemblies is rotatably connected with support around preset axis or with the axis parallel with preset axis.It is simple in structure, small in size, light in weight, can improve power density high, improve transmission reliability, reduce failure rate.

The invention discloses a double-drum winch for recovering a buoy, belonging to the technical field of underwater equipment recovery. The double-drum winch comprises a frame, a drum is installed above the frame, a shaft body connected to the frame for rotation is fixed to the drum, the frame is provided with a driver for driving the shaft body to rotate, the drum comprises a first drum body and a second drum body connected coaxially, the first drum body and the second drum body are provided with an annular baffle at the connection and the end, a winding space for surrounding the buoy is formed between the first drum body and the annular baffle, a winding space for surrounding the shallow buoy is formed between the second drum body and the annular baffle, the shaft body is connected with a driven wheel, the driven wheel is connected to the outside of the drum, the driver comprises a plurality of motors arranged around the area below the driven wheel, and the output end of the motor is provided with a driving wheel engaged with the driven wheel. The invention has a compact structure, a reasonable layout, and can realize stable and rapid recovery of buoys in harsh environments.

The utility model discloses a movable column type nonmetal five-axis machining center, and belongs to the field of numerical control machining equipment, the movable column type nonmetal five-axis machining center comprises a machining platform and a portal frame structure, two stand columns of the portal frame structure are movably mounted on the two sides of the machining platform, a Y-axis sliding plate is movably arranged on the side face of a cross beam of the portal frame structure, and a Z-axis sliding plate is movably arranged on one side of the Y-axis sliding plate; the Z-axis sliding plate is provided with a shaft head assembly with two rotating shafts, the Y-axis sliding plate is connected with a translation mechanism, the Z-axis sliding plate is connected with a lifting mechanism, the translation mechanism comprises a first driving motor, the lifting mechanism comprises a second driving motor, and the first driving motor and the second driving motor are arranged on the other side of the Y-axis sliding plate through balance weight plates respectively. The weight of the two sides of the Y-axis sliding plate is effectively balanced, unbalance loading borne by the cross beam in the machining process is reduced, stress concentration of the cross beam is reduced, meanwhile, stress of the cross beam and a sliding block and a sliding rail connected with the cross beam is reduced, abrasion and damage of the sliding block and the sliding rail are remarkably reduced, and the service life of the sliding block and the sliding rail is prolonged.

The present invention discloses a main shaft system of a large wind turbine generator set, which belongs to the field of wind power generation, including a wind turbine main shaft, a main shaft housing is provided on the wind turbine main shaft, a dynamic and static pressure sliding bearing is provided on the wind turbine main shaft, a main shaft shoulder is provided on the wind turbine main shaft, a main shaft housing is provided on the outside of the dynamic and static pressure sliding bearing, an oil inlet channel and a housing shoulder are provided on the main shaft housing, a thrust pad is provided between the main shaft shoulder and the housing shoulder, and the oil inlet channel is connected with the dynamic and static pressure sliding bearing and the thrust pad. The outer layer of the dynamic and static pressure sliding bearing is a first steel ring, the middle part is a first copper alloy layer, and the inner surface is a first friction layer and a coating. All bearings of the present invention are composite dynamic and static pressure bearings, which are composed of three parts. The outer layer is steel, which can increase the rigidity and strength of the entire bearing, and the copper alloy can reduce the elastic modulus, is easy to deform, and reduces the bearing eccentric load, and has an adaptive function. The use of a two-stage pressure control valve can select a suitable oil pressure according to the size of the wind speed to ensure that the bearing has a suitable bearing capacity.