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44 results about "Thrust block" patented technology

A thrust block, also known as a thrust box, is a specialised form of thrust bearing used in ships, to resist the thrust of the propeller shaft and transmit it to the hull.

Retaining device for mounting a slide rail to a server rack

ActiveUS20250324538A1ServersData center roomsControl theoryThrust block
A retaining device for mounting a slide rail to a server rack between front and rear ends of the server rack includes a rear support unit connected with the rear end, and a front support unit connected with the slide rail. The rear support unit includes a rear support rail and a biasing member. The front support unit includes a front support rail telescopically disposed on the rear support rail, and a front bracket connectable with the front end and the slide rail. The front support rail has a thrust block abutting against the biasing member. The front support rail is moved rearwardly to move the slide rail and the front bracket toward the rear support rail so as to vary a distance between the front bracket and the rear end, and the thrust block compresses the biasing member to tightly connect the front bracket with the front end.
Owner:FIRST DOME

Limiting device for movable guide vane of water turbine

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.
Owner:HUBEI ENERGY GRP LIUSHUI HYDROPOWER CO LTD +1

Hydraulic generator thrust block machining device and machining method

The invention relates to the technical field of machining, in particular to a hydro-generator thrust collar machining device and method, the machining device is used for machining a thrust collar of a hydro-generator, the machining device comprises a placing assembly, a rotating assembly and a machining assembly, and the machining assembly is arranged on a rotating platform and used for machining the thrust collar; a rigid supporting system is formed by the machining base and the fixing support, the fixing gear serves as an accurate transmission datum point, and when the driving part drives the rotating platform to rotate around the fixing gear, the position of the corresponding tool assembly can be adjusted so that machining can be conducted on the peripheral face of the thrust block at all angles, and machining precision is improved. That is, the machining cutter keeps synchronous displacement with the workpiece on the rotating platform, the relative position of the cutter system and the workpiece is kept constant through the structure, and positioning deviation generated by movement of the workpiece in traditional split equipment is eliminated. The problem that in the prior art, on-site machining of a thrust block of a hydro-generator cannot be achieved is solved.
Owner:MINGXING ELECTRIC SICHUAN +1

Pipe fitting clamping structure of full-automatic pipe bending machine

The utility model relates to the technical field of pipe fitting machining, and discloses a pipe fitting clamping structure of a full-automatic pipe bending machine, which comprises a first supporting plate and a fixing plate fixedly connected to the outer wall of the first supporting plate, a moving mechanism is arranged on the first supporting plate, a clamping mechanism is arranged above the moving mechanism, and a clamping mechanism is arranged above the clamping mechanism. A pipe fitting is placed on the clamping groove in the top end of the lower clamping plate, and the hydraulic cylinder is started to drive the thrust block to move leftwards to extrude the stress block, so that the lower clamping plate can be driven to move upwards, and the pipe fitting placed at the top end of the lower clamping plate can be driven to move upwards in the upward moving process of the lower clamping plate; the upper clamping plate and the lower clamping plate are matched with each other until the top end of the pipe fitting is driven to be attached to the clamping groove in the bottom end of the upper clamping plate, so that the pipe fitting can be clamped through mutual matching of the upper clamping plate and the lower clamping plate, the pipe fitting is fixed, workers only need to place the pipe fitting in the supporting seat in the process, redundant process operation is not needed, and convenience and practicability are achieved.
Owner:ZHANGJIAGANG LIYE MACHINERY CO LTD

A wind turbine electromagnetic brake dismounting device and method

PendingCN122442312A
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.
Owner:GUANGDONG MINGYANG WIND POWER IND GRP CO LTD

Hand brake valve operating device and hand brake valve

The present application relates to the technical field of vehicle braking, and provides a hand brake valve operating device and a hand brake valve. The operating device comprises a thrust block and a locking block, the locking block is provided with a sliding surface for the movement of the thrust block, a side wall protruding from the sliding surface, and a locking groove at the front end of the sliding surface for the falling of the thrust block; a crossbar is movably arranged on the side wall and at the front end of the locking groove; a false locking prevention mechanism comprises a false locking prevention pin movably connected to the crossbar, and when the thrust block is at a non-parking position, the false locking prevention pin blocks the edge of the locking groove; when the thrust block moves along the sliding surface to the parking position, the crossbar is pushed to drive the false locking prevention pin to leave a falling path for the thrust block to fall into the locking groove. The operating device and the hand brake valve of the present application can effectively avoid the occurrence of the "false locking" problem during parking braking through the false locking prevention mechanism, and improve the stability and safety of parking braking.
Owner:ZF COMMERCIAL VEHICLE SYSTEMS (QINGDAO) CO LTD

Retaining device for mounting a slide rail to a server rack

ActiveUS12495512B2ServersData center roomsControl theoryThrust block
A retaining device for mounting a slide rail to a server rack between front and rear ends of the server rack includes a rear support unit connected with the rear end, and a front support unit connected with the slide rail. The rear support unit includes a rear support rail and a biasing member. The front support unit includes a front support rail telescopically disposed on the rear support rail, and a front bracket connectable with the front end and the slide rail. The front support rail has a thrust block abutting against the biasing member. The front support rail is moved rearwardly to move the slide rail and the front bracket toward the rear support rail so as to vary a distance between the front bracket and the rear end, and the thrust block compresses the biasing member to tightly connect the front bracket with the front end.
Owner:FIRST DOME

Heavy truck cab damping system and method, terminal and medium

The invention belongs to the technical field of heavy truck cab damping, and particularly discloses a heavy truck cab damping system and method, a terminal and a medium. The thrust block is arranged on the supporting sliding rod in a sleeving manner and can axially slide relative to the supporting sliding rod; the mass block group comprises a plurality of annular mass blocks which are coaxially arranged on the supporting sliding rod in a sleeving manner and are positioned between the two thrust blocks; and the spring is arranged between the mass block group and the thrust block, so that the mass block group is clamped in the axial direction. A mass-spring resonance system is formed by combining the supporting sliding rods, the thrust blocks, the springs and the mass block sets, vibration energy can be effectively absorbed and counteracted when low-frequency vibration occurs in the cab, and shaking is remarkably weakened.
Owner:SINO TRUK JINAN POWER CO LTD

An assembly structure for a scroll compressor and the scroll compressor itself.

ActiveCN224453086UContact positionThrust block
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.
Owner:JOHNSON CONTROLS HITACHI WANBAO COMPRESSOR GUANGZHOU CO LTD

Flexible and convenient upper rudder carrier and upper rudder carrier processing equipment

PendingCN122009463ASteering ruddersMetal working apparatusThrust blockRudder
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.
Owner:CHINA EMPIRE OFFSHORE ENGINEERING EQUIPMENT MANUFACTURE CO LTD

Axial loading buffer device for high-speed bearing test bed and use method of axial loading buffer device

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.
Owner:NO 703 RES INST OF CHINA SHIPBUILDING IND CORP

A device for shape correction of large ring members

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.
Owner:CENT SOUTH UNIV

Casting ejector rod hole sand core drilling tool

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.
Owner:CHANGCHAI

A folding spoon jig

ActiveCN224277879UPackaging machinesThrust blockImpact
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.
Owner:ZHUHAI DINGJU INTELLIGENT EQUIPMENT CO LTD

Pipeline deviation rectification control system for pipe jacking construction

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.
Owner:SUINING CONSTRUCTION ENGINEERING CO LTD

Cooling system of vertical thrust sliding bearing

The utility model relates to a cooling system of a vertical thrust sliding bearing. The cooling system comprises a base, a thrust head and an axial thrust pad located between the base and the thrust head. The surface of the base is provided with an oil groove which is concavely arranged, and the oil groove extends towards the center of the base and penetrates through the inner wall of the base; one end, close to the base, of the thrust block extends outwards to form a step part; the guide bearing seat is of an annular structure; according to the cooling system disclosed by the utility model, efficient cooling, uniform lubrication and remarkable improvement of structural stability are realized through an innovative structural design and an optimized lubricating oil flowing path; lubricating oil enters the oil-water cooler from the working areas of the axial thrust pad and the guide bearing pad and enters the working areas again after being cooled, a first circulating channel and a second circulating channel of the lubricating oil are formed, efficient cyclic utilization of the lubricating oil is facilitated, and the working temperature of the bearing can be remarkably reduced; and the performance reduction or damage of the bearing caused by overheating is also avoided.
Owner:ZHUJI JINGZHAN MASCH CO LTD

An axially limiting drum-shaped gear coupling and its installation and adjustment method

PendingCN122305143AAxial displacementCoupling
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.
Owner:CITIC HEAVY INDUSTRIES CO LTD

A mechanism for quick character changing in sand molds

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.
Owner:WUHAN HUAPEI POWER TECH CO LTD

Piping installation method, precast block arrangement method and arrangement structure

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.
Owner:NAT AGRI & FOOD RES ORG

Large vertical motor thrust block based on phase change self-circulation and lubricating and cooling system

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.
Owner:JIAMUSI ELECTRIC MACHINE

Shaft end assembly of a compressor, compressor

The application provides a shaft end assembly of a compressor and the compressor, wherein the shaft end assembly of the compressor comprises a support, a driving shaft, a thrust bearing and a thrust block, the driving shaft and the thrust block are connected to the support respectively, one end of the thrust bearing is clamped on the driving shaft, the other end of the thrust bearing is clamped on the thrust block, the thrust bearing is located between the thrust block and the driving shaft, a second channel is arranged on the driving shaft along the axial direction of the driving shaft, a first channel is further arranged on the driving shaft, one end of the first channel is communicated with the second channel, and the other end of the first channel is arranged on the outer wall of the driving shaft, so that the oil in the compressor can be transported to the space between the support and the driving shaft through the second channel and the first channel, then flows to the space between the outer surface of the thrust bearing and the thrust block, and forms an oil film, which can overcome the defect that the scroll compressor in the prior art cannot form an oil film between the thrust bearing and the thrust block, and causes the sliding surface of the thrust block and the thrust bearing to be abraded.
Owner:GREE ELECTRIC APPLIANCE INC OF ZHUHAI

Angular displacement swing cylinder

The present application relates to the technical field of oil cylinder, specifically to an angular displacement swing oil cylinder, comprising a cylinder body and a piston, the inside of the cylinder body is provided with a hydraulic oil cavity, both ends of the hydraulic oil cavity are provided with a thrust block, and the two thrust blocks are symmetrically arranged, the piston is slidably arranged in the hydraulic oil cavity, the thrust block comprises a rotating seat, an outer shell, a sliding seat, a protective sleeve, a first friction ring and a second friction ring, the rotating seat is coaxially and rotatably connected into the left opening of the protective sleeve, the right end of the protective sleeve is coaxially and fixedly connected to the left end of the sliding seat, and the first friction ring is coaxially and fixedly connected to the left end of the sliding seat, the purpose of the present application is to solve the problem that the inertia accumulated in the swing process of the spiral swing oil cylinder is too large when the piston moves to the thrust bearing, and the impact force on the oil cylinder is too large when the piston stops, and the impact force on the thrust bearing when the piston stops needs to be reduced.
Owner:YANTAI NEWSTAR AERO HYDRAULICS

Tool for measuring inner diameter size of thrust block when thrust block is heated by on-site shrinkage fit method

The utility model relates to the field of inner diameter dimension measurement, in particular to a tool for measuring the inner diameter dimension of a thrust block when the thrust block is heated by an on-site shrinkage fit method, which comprises a pipe body, a rectangular opening is arranged on the pipe body, a first hoop and a second hoop are sleeved on the pipe body, the inner diameter of the second hoop is fixedly connected with a lantern ring, and the lantern ring is fixedly connected with the inner diameter of the first hoop. One end of the pipe body is fixedly connected with a connecting ring, one side of the connecting ring is fixedly connected with a connecting pipe, one end of the connecting pipe is provided with a knob cover, and the interior of the knob cover is fixedly connected with a bidirectional screw rod. During use, the knob cover is screwed, the knob cover drives the two-way screw to rotate, the two-way screw drives the lantern ring to get away from each other, the lantern ring drives the first hoop and the second hoop to get away from each other, the first hoop and the second hoop drive the connecting block to move along the rectangular opening, and the connecting block drives the clamping plate to get away from each other, so that the length of the pipe body does not need to be adjusted; and the measurement is relatively convenient.
Owner:GUANGDONG YUANTIAN ENG

Self-aligning structure of thrust bearing for vertical motor and mounting method

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.
Owner:JIAMUSI ELECTRIC MACHINE

A multifunctional dual-fuel low-speed diesel engine fuel injection valve

The present application relates to the field of diesel fuel injection valve, especially to a multifunctional dual-fuel low-speed diesel fuel injection valve, which comprises a check valve, a top cover, a valve seat, a nozzle, a limiting structure and an anti-skid structure, the check valve is located at the top for high-pressure fuel oil, the top cover is located below the check valve to enhance the stability, the valve seat is located below the top cover for high-pressure hydraulic oil to control the stroke of the thrust block, the nozzle is located below the valve seat for controlling the injection of high-pressure fuel oil, the limiting structure is arranged between the nozzle and the valve seat for quickly disassembling the nozzle, and the anti-skid structure is arranged on the top cover to limit the loosening of the top cover during use, the limiting structure can quickly disassemble the nozzle, greatly improves the convenience of maintenance and replacement of the nozzle, reduces the downtime and improves the work efficiency.
Owner:HUDONG HEAVY MACHINERY

Device for converting centrifugal force into axial thrust

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.
Owner:GUANGDONG ZHUHENG HUMAN RESOURCES CO LTD

Shale gas casing variable diameter well staged fracturing 65 mm outside diameter expanded to 114.3 mm bridge plug slip

ActiveCN116877027BSealing/packingThrust blockShale gas
The application discloses a bridge plug slip of 65mm outer diameter expansion to 114.3mm for shale gas casing deformation well segmented fracturing, which comprises a tailstock, double-inclined-plane push block groups, a slip base, a slip push block, a slip tooth, a center rod, a fixed pin, a starting pin, a thrust block and a limiter. In the anchoring process, the two groups of double-inclined-plane push block groups are symmetrically arranged on the left and right sides of the slip base, the slip push block moves downward along the center rod, drives the two groups of double-inclined-plane push block groups to produce radial displacement, when the wedge-shaped block in the double-inclined-plane push block reaches the maximum displacement in the wedge-shaped groove of the slip base, the slip base and the right double-inclined-plane push block group simultaneously displace downward, drives the slip base to produce radial displacement, until the slip tooth is anchored stably with the casing, the limiting elastic block is bounced into the center rod, preventing the slip base from rebounding. The bridge plug slip is expanded from the initial outer diameter of 65mm to a large range of 114.3mm, the anchoring of the slip is stable and reliable, and the bridge plug can smoothly pass through when the casing is severely deformed in the fracturing operation.
Owner:SOUTHWEST PETROLEUM UNIV

Pipeline deviation rectification control system for pipe jacking construction

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.
Owner:SUINING CONSTRUCTION ENGINEERING CO LTD

Retainer mounting assembly in thrust bearing and press fitting mechanism for thrust bearing

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.
Owner:JIANG SU NAN FANG BEARING CO LTD

Floating ball liquid level meter with compression-resistant structure

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.
Owner:CATO ELECTRONICS (KUNSHAN) CO LTD