24 results about "Thrust block" patented technology

The limiting device comprises a crank arm, the crank arm is rotationally connected with a guide vane sleeve flange, a crank arm ring groove is formed in the outer wall of the crank arm, a thrust block is arranged on the guide vane sleeve flange, a thrust head extends out of the thrust block, and the structure of the thrust head is in sliding fit with the crank arm ring groove. The utility model has the following advantages: (1) the external modular design is convenient for intuitively monitoring the wear state and quickly dismounting and replacing, the maintenance-free stop block is welded on the guide vane sleeve flange, and the anti-vibration stability is enhanced by means of the top cover structure; (2) the limiting efficiency is enhanced by double stop blocks, the full opening / closing position of the guide vane is accurately locked, the lifting of the guide vane and the abnormal opening degree are effectively inhibited, and the chain damage is blocked in an accident; (3) an independent dismounting system avoids the interference of associated equipment and ensures the operation safety of the unit; and (4) the adaptability is high, a standardized device can be customized according to the unit scale, and the installed capacity limitation is broken through.

The application discloses a kind of wind generating set electromagnetic brake splines dismounting device and dismounting method, for dismounting spline;The dismounting device includes two thrust blocks, two sliders, two fixed blocks and two adjusting screws;Two thrust blocks are respectively arranged in the opposite sides of the top of yaw motor end cover of wind generating set, and are respectively located in the opposite sides of spline;The side of each thrust block towards spline is formed with a limit structure, and the top surface of the side of thrust block towards spline is wedge surface;The side of each thrust block away from spline is formed with mounting groove;Two sliders are respectively installed in the mounting groove of two thrust blocks;Two fixed blocks are detachably installed in the opposite sides of the top of yaw motor end cover, and are respectively located outside two sliders;Two adjusting screws are respectively connected with two fixed blocks in one-to-one correspondence in horizontal direction by screw thread.This application can effectively solve the problems of limited spline dismounting space, poor centering effect, easy damage to components, insufficient universality and the like.

This utility model relates to the field of scroll compressor technology, and more particularly to an assembly structure and a scroll compressor. The assembly structure includes a crankshaft; a moving scroll plate with a shaft hole at its bottom, into which the end of the crankshaft is inserted, and a friction coating to reduce friction is provided between the crankshaft and the shaft hole; a frame through which the crankshaft passes, and the friction coating is provided at the contact points between the crankshaft and the frame; and a lower support body through which the crankshaft passes, and a thrust block is mounted on the crankshaft, with the friction coating also provided at the contact points between the crankshaft, the thrust block, and the lower support body. This assembly structure and the scroll compressor solve the problem of high bearing costs in existing scroll compressors.

The invention relates to the technical field of marine parts, and discloses a flexible and convenient upper rudder bearing and upper rudder bearing machining equipment, the flexible and convenient upper rudder bearing comprises a rudder bearing shell, a plurality of evenly distributed through holes are formed in the upper portion of the rudder bearing shell, and a plurality of thrust blocks are fixedly installed on the periphery of the rudder bearing shell; the rudder bearing frame is arranged above the rudder bearing shell; the radial bearing is arranged on the inner wall of the rudder bearing shell, and a rudderstock is sleeved with the radial bearing during installation; the axial bearing is arranged between the rudder bearing shell and the rudder bearing frame; the framework oil seal is arranged at the bottom of the joint of the radial bearing and the rudder bearing shell; and the protective sleeve is installed on the outer side of the rudder bearing shell, a plurality of blind holes are formed in the top of the protective sleeve, and the through holes are used in cooperation with the blind holes. By means of the prefabrication mode, the upper rudder bearing has a complete assembly state when being delivered to a shipyard, the shipyard only needs to connect and fix the rudder bearing shell and the rudder bearing frame through common bolts, and the installation period of a rudder system is greatly shortened.

The invention discloses an axial loading buffer device for a high-speed bearing test bed and a use method of the axial loading buffer device, and relates to the technical field of loading buffer devices for high-speed bearing test beds. An axial loading buffer device for a high-speed bearing test bed comprises a thrust block, an output end pressing plate, a thrust sleeve, a sleeve, a piston rod, an input end gland and a spring. The application method comprises the following steps: placing the electric cylinder at the rear end of the piston rod, and fixing a bearing test piece at the front end of the thrust block; the electric cylinder is started, the transmission rod of the electric cylinder pushes the piston rod to move forwards, and the thrust sleeve drives the thrust block to repeatedly load the bearing test piece under the elastic force action of the spring until loading is completed. The axial loading buffer device for the high-speed bearing test bed and the using method of the axial loading buffer device can be obtained.

A device for large ring shape correction, comprising a ring, a center base, a supporting roller mechanism, a measuring centering mechanism, a clamping limiting mechanism and a thrust block mechanism, a plurality of supporting roller mechanisms are evenly arranged on the circumference of the ring for driving the ring to rotate; a plurality of measuring centering mechanisms are evenly arranged on the circumference of the ring for positioning the ring center position, measuring the ring roundness error and the end face unevenness; a plurality of clamping limiting mechanisms are evenly arranged on the circumference of the ring for limiting the movement of the ring contact position; a plurality of thrust block mechanisms are evenly arranged on the circumference of the ring, one end of the thrust block mechanism is connected with the center base, the other end is in contact with the ring, the thrust block mechanism works on the ring along the radial outward to change the ring curvature to realize the roundness correction, works on the ring along the axial upward to change the ring end face curvature to realize the flatness and column correction. The present application can comprehensively correct the ring roundness, flatness and cylindricity, and has strong versatility for many shape error categories.

The utility model belongs to the technical field of sand core casting equipment, and particularly relates to a sand core drilling tool for casting an ejector rod hole, which comprises a base, an ejector rod hole drilling device and a sand core drilling device, a plurality of limiting blocks are distributed on the upper end face of the mould, and the limiting blocks are matched with one another to form a sand core placing position; the drilling mechanisms are arranged along the horizontal direction and are respectively aligned with the corresponding processing surfaces of the sand core; the sliding mechanism is used for bearing the mould and comprises sliding rails and moving parts capable of moving back and forth along the sliding rails, and limiting parts are arranged on the sliding rails and abut against the inner sides of the moving parts to limit transverse deviation of the sand cores on the mould; wherein a thrust block is arranged in the advancing direction of the sliding mechanism and is suitable for limiting the maximum stroke of the sliding mechanism so as to limit the hole depth of the sand core and prevent the drilling depth from exceeding the thickness of the side wall of the sand core, so that a drill bit is prevented from punching through the side wall of the sand core.

This utility model relates to the field of jig technology, specifically to a folding spoon jig, including a spoon and a clamping mechanism for holding the spoon. A jig fixing plate is movably arranged at the bottom of the clamping mechanism, and several cylinders a are fixed on the jig fixing plate. The output end of the cylinders a is equipped with a thrust block for cooperating with the clamping mechanism to bend the spoon. The clamping mechanism includes a jig base plate, a sliding frame, a clamping component, a lifting frame, and a cylinder b. This folding spoon jig achieves flexible adaptation of clamping spacing and quantity through the freely adjustable clamping component on the sliding frame. At the same time, the buffer module absorbs the impact force through the elastic deformation of the buffer spring, and the buffer spring compression stroke is adjusted by the internal hex nut to customize the buffering performance. Finally, under the synergistic action of the lifting frame driven by cylinder b and the thrust block linked by cylinder a, a highly flexible, impact-resistant, and customizable spoon folding effect is achieved.

The invention relates to the technical field of construction measurement and control, in particular to a pipeline deviation rectification control system for pipe jacking construction, which comprises a posture calibration module, a track recognition module, a variable analysis module, a thrust distribution module and a partition execution module. According to the method, the circumferential thrust difference and the attitude angle change direction are analyzed, attitude correction and path offset data are combined, a linkage judgment mechanism between the path and the attitude is constructed, the dominant deviation type in the propulsion process is recognized, the response direction is dynamically adjusted and controlled, and the propulsion variable matching relation is optimized; thrust output and speed data are utilized to establish a resistance distribution diagram, the thrust output proportion is accurately adjusted after the resistance concentration trend is recognized, thrust continuity and output trend consistency are adopted to merge and control sections, linkage regulation and control and partition updating of thrust blocks are achieved, posture adjustment, path deviation correction and thrust distribution form a unified coordination relation, and the thrust distribution accuracy is improved. And the direction control precision and the response synchronism in the pipeline propelling process are enhanced.

An axially limiting drum-tooth coupling and its installation and adjustment method are disclosed. The drum-tooth coupling includes an axial limiting assembly, comprising an active end limiting mechanism disposed on both sides of the transmission component and capable of elastically abutting against the active end external gear sleeve, and a driven end limiting mechanism capable of rigidly abutting against the driven end external gear sleeve. The active end limiting mechanism includes an active end thrust block axially slidably disposed within a cavity of the transmission component, and an elastic element providing axial elastic support for the active end thrust block. This coupling effectively limits the axial displacement of the motor shaft through the axial limiting assembly, while retaining the original high torque transmission capacity and deviation compensation characteristics of the drum-tooth coupling. The installation and adjustment method of this coupling is also simple and efficient, enabling quick and accurate installation and axial limiting adjustment, greatly improving installation efficiency and reliability.

A mechanism for quick character changing in sand molds is disclosed. The mold is mounted on the upper part of the upper mold base. The mechanism includes a stripper plate, a thrust block, a character striking rod, and a character quick-change key. The stripper plate is located below the upper mold base and is connected to the upper mold base via guide pillars. The thrust block is fixed to the upper part of the stripper plate, and the character striking rod is also fixed to the upper part of the stripper plate. The lower part of the mold has an ejection hole for the character striking rod to enter. The character quick-change key is embedded in the upper part of the mold, and its embedded position matches the upper end of the ejection hole. The thrust block limits the distance between the stripper plate and the upper mold base, so that when the stripper plate moves to its limit position, the upper end of the character striking rod is lower than the character quick-change key. The positions of the character striking rod and the character quick-change key are controlled by a detachable thrust block. During production, the thrust block is installed to limit the mold closing distance, and the top of the rod does not contact the character. When character replacement is required, the thrust block is removed, and the rod ejects the character after mold closing. This mechanism has high work efficiency, can be repeatedly implemented, and is suitable for quick-change requirements in production lines.

This design facilitates the construction of thrust block arrangements that reduce the impact of thrust forces acting on pipe joints. [Solution] A piping construction method including a joint, comprising: an excavation step (S11) of excavating the ground at the location where the piping will be buried; and a placement step (S12) of placing the piping including the joint and a precast block that contacts the joint from the outside to receive the thrust force received by the joint from the fluid present in the piping.

The invention provides a large vertical motor thrust block based on phase change self-circulation and a lubricating and cooling system, and belongs to the technical field of vertical motor lubricating and cooling. The problems that an existing large vertical motor thrust and guide bearing lubricating and cooling system is complex in installation, large in water resource consumption, high in water leakage risk, high in cost and the like are solved. A guide tile assembly is installed on the inner wall of a base and outer cover assembly, a thrust tile assembly is installed at the bottom in the base and outer cover assembly, the lower end face of a thrust head is attached to the thrust tile assembly to form a thrust sliding pair, the lateral outer circle face of the thrust head makes contact with the guide tile assembly to form a guide sliding pair, and an inner hole of the thrust head is connected with a main shaft and synchronously rotates along with the main shaft. The internal cavity of the thrust block is filled with the phase change material, and the spiral fin cooler is communicated with the internal cavity of the thrust block. The phase-change heat transfer characteristic of the phase-change material is combined, self-cooling circulation without external cooling water and power is achieved, the equipment structure is simplified, the operation cost is reduced, the operation stability of the system is improved, and the service life of the system is prolonged.

The invention discloses a self-aligning structure of a thrust bearing for a vertical motor and a mounting method, relates to the technical field of vertical motor bearings, and solves the problems that the throw adjustment is tedious, the consumed time is too long and the thrust bearing cannot adapt to the tiny deviation of an axis when the thrust bearing is assembled. The thrust bearing comprises a lower thrust block, an upper thrust block, a motor rotating shaft and a thrust pad structure, the lower thrust block is arranged at the upper end of the thrust pad structure, the upper thrust block is arranged at the upper end of the lower thrust block, and a connecting surface between the lower thrust block and the upper thrust block is a spherical surface and is provided with a limiting mechanism; a motor rotating shaft penetrates through the centers of the thrust pad structure, the lower thrust block and the upper thrust block, and the motor rotating shaft is connected with the upper thrust block; two clamping plates are symmetrically arranged at the upper end of the upper thrust block and inserted into the annular groove of the motor rotating shaft. Through the synergistic effect of the spherical sliding pair and the limiting matching mechanism, synchronous rotation and small-angle self-adaptive adjustment are achieved, and the purposes of automatically aligning, simplifying the assembly process and improving the operation stability are achieved.

The utility model provides a device for converting centrifugal force into axial thrust, which comprises a rotating disk, and the rotating disk is provided with a plurality of clamping grooves and mounting holes which are arranged in different directions; a centrifugal flail block is mounted in each clamping groove and is connected with the two movable connecting rods through bolts; the two movable connecting rods abut against thrust blocks arranged in the mounting holes. A locking pressure plate is mounted on the rotating disc and is used for limiting the axial movement of the centrifugal flail block and providing a radial movement space for the bolt; in the rotating process of the thrust device, the centrifugal flail block moves in the radial direction under the action of centrifugal force, the movable connecting rod is driven to push the thrust block in the axial direction, and therefore axial thrust is generated. The device is compact in structure, small in occupied space and suitable for the assembly environment with the limited space. The device utilizes centrifugal force in the rotating process, radial motion is converted into axial thrust through structural design, external hydraulic power systems, electric power systems and other power systems are not needed, and the whole system is simplified.

The invention relates to the technical field of construction measurement and control, in particular to a pipeline deviation rectification control system for pipe jacking construction, which comprises a posture calibration module, a track recognition module, a variable analysis module, a thrust distribution module and a partition execution module. According to the method, the circumferential thrust difference and the attitude angle change direction are analyzed, attitude correction and path offset data are combined, a linkage judgment mechanism between the path and the attitude is constructed, the dominant deviation type in the propulsion process is recognized, the response direction is dynamically adjusted and controlled, and the propulsion variable matching relation is optimized; thrust output and speed data are utilized to establish a resistance distribution diagram, the thrust output proportion is accurately adjusted after the resistance concentration trend is recognized, thrust continuity and output trend consistency are adopted to merge and control sections, linkage regulation and control and partition updating of thrust blocks are achieved, posture adjustment, path deviation correction and thrust distribution form a unified coordination relation, and the thrust distribution accuracy is improved. And the direction control precision and the response synchronism in the pipeline propelling process are enhanced.

The application is a retaining ring mounting assembly in a thrust bearing and a thrust bearing press mounting mechanism, comprising: a mounting table on which a B plate and a pre-positioned retaining ring are placed; a pressing driving assembly arranged above the mounting table and corresponding to an anchor point at the inner ring of the B plate; and a press head assembly arranged at the output end of the bottom of the pressing driving assembly; the press head in the press head assembly is elastically connected with the press head assembly, the bottom of the press head is provided with a notch for abutting against the inner ring of the retaining ring, the pressing driving assembly drives the press head to move downward, the press head moves radially outward during the pressing process, pulls one side of the retaining ring outward and then clamps it into the B plate to complete the cooperation with the B plate; through the radial movement of the press head assembly and the abutting of the thrust assembly, the automatic sliding installation of the B plate and the retaining ring is realized, through the lifting of the pressing driving assembly and the abutting of the thrust block assembly, the press mounting of the A plate and the retaining ring is realized, and the automatic installation of the thrust bearing is realized.

The utility model relates to the technical field of floating ball liquid level meters, in particular to a floating ball liquid level meter with a compression-resistant structure, which comprises an instrument, a vertical rod fixed at the bottom of the instrument, a lifting block arranged on the surface of the vertical rod, an extension plate fixed on the surface of the lifting block, a screwing ring and a screwing ring arranged inside the extension plate, and an elastic plate arranged on the surface of the lifting block. A rubber sheet is arranged on the surface of the elastic plate; the device has the beneficial effects that a screwing ring is screwed to enable a screwing ring to descend, a thread is arranged on the surface of the top of an extension plate, when the screwing ring moves to the bottom of the extension plate, the screwing ring is not screwed to the surface of the extension plate any more, the screwing ring moves downwards, the screwing ring drives a pushing block to move downwards through a lifting rod, the pushing block abuts against the surface of an elastic plate, and the elastic plate returns to the original shape.

The offshore wind power pile foundation with the floating protection function comprises a wind turbine generator and a base, a fixing base is fixedly installed in the center of the top face of the base, the bottom end of the wind turbine generator is fixedly installed on the inner wall of the fixing base, and reinforcing ribs are welded between the outer wall of the fixing base and the base. A floating seat is slidably connected to the outer wall of the wind turbine generator, a plurality of anti-interference plates are arranged on the outer wall of the floating seat at equal intervals, and an insertion plate is arranged on one side wall of each anti-interference plate. The floating seat is used for protecting the outer wall of the wind turbine generator, the floating seat can automatically slide on the outer wall of the wind turbine generator according to rising and retreating of seawater so as to protect the wind turbine generator, meanwhile, the sliding rods on the two sides of the floating seat can slide on the guide seat to automatically adjust the position, and the thrust blocks are used for limiting the sliding rods from sliding out of the guide seat; the anti-interference plate arranged on the outer wall of the floating seat can buffer waves, and the S-shaped bent structure of the anti-interference plate can buffer impacted waves layer by layer, so that damage of the waves to the floating seat and the outer wall of the wind turbine generator is reduced.

The utility model discloses a diesel engine cam bearing bush installation tool which comprises a main rod. The first clamping piece is matched with one side of a cam bearing bush in shape and is mounted on the main rod; the second clamping piece is matched with the other side of the cam bearing bush in shape, is movably arranged on the main rod and is matched with the first clamping piece to clamp the cam bearing bush together; the handle is connected to the main rod in a threaded mode and pushes the second clamping piece to move in the axial direction of the main rod. The thrust block is mounted on the first clamping piece; through the first clamping piece, the second clamping piece and the thrust block, the stability of the cam bearing bush during installation can be guaranteed, the cam bearing bush can be pushed in a stable direction, uneven left-right stress caused by pure manual pressing is avoided, the limiting protection effect is achieved in the installation process, and the installation efficiency is improved. And the installation position out-of-tolerance or excessive extrusion damage of the cam bearing bush is avoided.

This utility model belongs to the field of iron core manufacturing, specifically relating to a multi-station synchronous handling device for stator iron cores. It includes a long strip-shaped base arranged in a left-right direction, a long strip-shaped base plate movable in the left-right direction on the long strip-shaped base, and a plurality of handling components arranged at equal intervals in the left-right direction on the long strip-shaped base plate. Each handling component includes a gantry fixed to the long strip-shaped base plate, a lifting slide mounted on the same side of the gantry in a vertical direction, and a finger cylinder mounted on the lifting slide plate. Inside the gantry plate, a vertical cylinder with its lower end fixed to the long strip-shaped base plate is also vertically mounted. The piston rod of the vertical cylinder is vertically mounted, and a thrust block is fixed to the piston rod. The thrust block is connected to the lifting slide plate. This utility model improves the production efficiency of the stator iron core post-processing production line.

The invention relates to an environment-friendly gas insulation ring main unit which comprises a gas chamber and a vacuum arc-extinguishing chamber arranged in the gas chamber, the vacuum arc-extinguishing chamber comprises a shell and a moving contact arranged in the shell, the environment-friendly gas insulation ring main unit further comprises a static contact assembly, the static contact assembly comprises a static contact rod, a center hole is formed in the static contact rod, a guide hole is formed in the side of the center hole, and a sliding groove is formed in the static contact rod; the floating contact is movably arranged at the front end of the static contact rod, and an avoiding hole is formed in the axis of the floating contact in a penetrating manner; the guide rod is fixedly arranged at the rear end of the floating contact and is assembled in the guide hole in an anti-drop manner; the insulating feeler lever is slidably assembled in the center hole, and the front end of the insulating feeler lever penetrates through the avoiding hole; the elastic buffer assembly comprises a main spring and a reset spring; the damping matching structure is used for providing axial motion damping; the thrust matching structure comprises a first thrust block and a second thrust block, the first thrust block is located in front of the second thrust block, and the first thrust block and the second thrust block both slide along the sliding groove; and the floating contact is electrically connected with the static contact rod. Rigid impact is avoided, and closing bounce is eliminated.

The utility model discloses a shearing force wall grouting sleeve structure, including the cylinder, both ends of cylinder are connected with the lug, the outer wall of lug is equipped with the sleeve, the inner wall of sleeve is connected with the cushion block, the surface of cushion block is connected with the connecting block, the outer wall of connecting block is equipped with the connecting ring, the surface of connecting ring is connected with the support frame, one end of support frame is connected with the thrust block, the outer wall of lug and the inner wall of sleeve all are connected with the screw thread of cooperation, the sleeve is connected with the lug through the screw thread. This shearing force wall grouting sleeve structure, through the setting of cylinder, lug, sleeve, cushion block, first through -hole, connecting block, connecting ring, support frame, thrust block and second through -hole, has facilitated the length of the steel bar that extends into the cylinder to adjust, thereby be favorable to be applicable to the shearing force wall steel bar structure of different size, and further improved the scope of application, satisfied people's work demand.

The invention relates to a spherical hinge connection type tilting pad thrust bearing structure, and aims to solve the problems of insufficient lubricating performance, poor heat dissipation performance and insufficient posture adjustment flexibility of thrust blocks in the prior art. The structure comprises a transmission shaft, a ball socket type thrust block, a ball head connecting column, a thrust bearing disc, a thrust bearing disc fixing ring piece, a thrust bearing outer shell, an O-shaped ring, a locking nut and a hydraulic bent pipe. The ball socket type thrust block is connected with the ball head connecting column through a spherical hinge pair, a hydraulic oil channel and a damping hole are formed in the ball head connecting column, and hydraulic oil flows into the ball head connecting column through the hydraulic bent pipe and further flows through the damping hole of the ball socket type thrust block, so that oil-way circulation for lubrication and heat dissipation is formed. Babbitt metal is sprayed to the bottom of the ball socket type thrust block, abrasion resistance is improved, the ball socket type thrust block can be connected with the ball joint column in a thermal expansion and cold contraction mode, and self-adjustment of the working posture is achieved. The thrust bearing disc is provided with a limiting ring, the swing angle of the thrust block is limited, and installation is convenient. By optimizing the structural design, forced lubrication in the whole working condition period is achieved, the lubrication and heat dissipation performance of the thrust bearing under the high thrust working condition is remarkably improved, meanwhile, the flexibility of self-adaptive adjustment of the pose of the thrust block is enhanced, and the thrust bearing is suitable for various high-load transmission systems.