271 results about "Thrust block" patented technology

The invention provides a high-precision synchronization self-alignment engine-driven clamp. The high-precision synchronization self-alignment engine-driven clamp comprises a clamp body, two rolling guide rails, two pairs of guide rail sliding blocks, a first thrust block, a second thrust block, a first clamping jaw, a second clamping jaw, a first driving mechanism, a second driving mechanism, a first rack, a second rack, a first gear and a second gear, wherein the rolling guide rails are installed on the clamp body side by side, the guide rail sliding blocks are installed on the rolling guide rails, the first thrust block and the second thrust block are installed on the guide rail sliding blocks, the first clamping jaw and the second clamping jaw are installed on the first thrust block and the second thrust block respectively, the first driving mechanism and the second driving mechanism are installed on the clamp body, one end of the first driving mechanism and one end of the second driving mechanism are connected with the first thrust block and the second thrust block respectively, and the first gear and the second gear are meshed with the first rack and the second rack respectively. According to the clamp, the two meshed gears are adopted as a synchronization mechanism, and the two racks are used as a linear moving mechanism, so that the linear motion of the two racks and the rotating motion of the two gears are converted, the relative synchronous motion of the two clamping jaws can achieve clamping, and then synchronous self-alignment workpiece clamping is achieved.

A novel prefabricated shearwall is disclosed with improved structural characteristics in terms of its ability to 1) transfer lateral loads to the foundation, 2) resist bending moments normally arising in conventional shearwalls between hold-down hardware and end posts or vertical framing members, 3) effectively diffuse stresses known to result in nail fatigue, and 4) reduce slippage between the bottom of the end posts and base in response to cyclic loadings. These superior properties result partly from its geometry in lower, or shear force transfer region, accompanied by thrust block/anchor rod assemblies to provide stiffness and strength over the lower portion of the end posts. Furthermore, specialized wrap-around connector plates that cover a portion of the bottom surface of these end posts also contribute to the enhanced prefabricated shearwall design.

The invention relates to equipment for dynamically detecting parameters of railway vehicles, in particular to a system for dynamically detecting stiffness parameters of closed-loop diagonal-bracing type vehicle bogies. The system consists of a mechanical system, a testing system and a control system, wherein the mechanical system comprises a body vertical thrust block assembly (II), a dynamic detection table (III) for the stiffness parameters of the closed-loop diagonal-bracing type vehicle bogies, and a hoisting-type upper beam pillar (V); the dynamic detection table (III) for the stiffness parameters of the closed-loop diagonal-bracing type vehicle bogies mainly comprises a closed-loop diagonal-bracing type vertical loading gantry (A), a plane loading platform (B), an adjustable-gauge bridge approach device (C), a bogie longitudinal anti-thrust assembly (D) and a simulation corbel (F); the testing system comprises a displacement detection system (G) and a six-dimensional force sensor (c); and the control system mainly comprises a hydraulic control system, an electrical control system and a computer system. The system can perform dynamic test on the stiffness parameters of the bogies in an entire-vehicle state and an independent state.

A stent deployment system includes a handle and a flexible sheath coupled the handle. A flexible tube extends from the handle through the sheath. A tapered flexible extension is coupled to the flexible tube, the tapered flexible extension has a taper angle of between about 5 degrees and 15 degrees towards the handle. A bead of adhesive can be supplied at an end of the tapered flexible extension. A thrust block is coupled to the flexible tube, and an endoluminal prosthesis is positioned around the flexible tube between the thrust block and the tapered flexible extension with a space situated between the endoluminal prosthesis and the thrust block.

The invention discloses a thrust bearing resonant converter for marine. The converter comprises a thrust bearing and a resonant converter which is connected with the thrust bearing; a front end cover of the thrust bearing is internally provided with a plurality of plunger chambers uniformly along the circumference; each plunger chamber is internally provided with a plunger; one end of the plungeris contacted with a front thrust block of the thrust bearing, and the other end of the plunger forms a clearance with the corresponding plunger chamber; the clearances of all plunger chambers are communicated mutually and are filled with hydraulic oil, and a balance oil cylinder is formed; the resonant converter consists of a hydraulic pipe and an oil cylinder which are connected mutually; the balance oil cylinder is connected with the hydraulic pipe through an interface, and is communicated with the oil cylinder of the resonant converter; and the vertical load of a propulsion shafting is transferred to each plunger which is contacted with the propulsion shafting through the front thrust block, each plunger is pushed to move and the load is acted in the balance oil cylinder and the hydraulic oil in the resonant converter, thus vibration attenuation is realized. According to the invention, the assembling problem between the resonant converter and the thrust bearing for marine is solved, and the resonant converter has the advantages of flexibility in mounting, high safety and small volume, and is convenient to control in the practical operation.

The invention provides a camera telescopic device. The device comprises a base frame capable of being arranged in a shell of a mobile phone, a screw movably arranged on the base frame, a driving device connected with one end of the screw, a nut arranged on the screw, and a thrust block arranged on the nut and used for connecting with a camera module on the mobile phone; a bearing mechanism for bearing a screw axial force is arranged at the other end of the screw, and the bearing mechanism is arranged on the base frame. The invention further provides the mobile phone, the mobile phone comprisesa shell, the camera module arranged in the shell, and a display screen arranged on the shell; the mobile phone further comprises the above camera telescopic device; and the camera telescopic device is connected to the camera module and used for driving the camera module to extend out the display screen and retract to the back of the display screen. The transmission of the camera telescopic deviceprovided by the invention can be stable and reliable through the arrangement of the bearing mechanism.

The invention relates to a novel double-seal arrow-shaped check valve, is mainly used for an anti-spraying device in an oilfield drill column and belongs to the field of well control equipment of a petroleum and gas drilling well. The novel double-seal arrow-shaped check valve comprises an upper valve body, a lower valve body, an arrow-shaped valve core, a supporting base, a rubber cylinder, a thrust block, a spring and a valve core rear part rod, wherein the upper valve body is connected with the lower valve body through a thread; the inner part of the upper valve body is designed with a tapered surface; the tapered surface and a tapered face of the arrow-shaped valve core are contacted to form a seal; the lower valve body is internally provided with the supporting base and the rubber cylinder, the thrust block and the spring are sleeved in the rear part of the arrow-shaped valve core; the valve core rear part rod and the supporting base are clamped through a safe clamping ring; and drilling-down liquid and well drilling liquid do not block a channel in a normal circulation process. The novel double-seal arrow-shaped check valve has the advantages of simple structure, smooth flow channel, small drilling-down resistance and a well drilling medium can smoothly pass through; and at a high pressure, the novel double-seal arrow-shaped check valve has a double-sealing effect, can prevent underground fluid from upwards flowing and is good for well control work.

A thrust chamber using a single thrust bearing and having seals secured to the thrust chamber case. Also a skid for a horizontally mounted submersible pump, thrust chamber and drive mechanism. The skid having a thrust chamber mounting bracket which provides positive mounting locations thus allowing for the change out of the thrust chamber without removing the drive mechanism.

The invention discloses an engine post-thrust measuring device, comprising a hollow experiment capsule in which an engine is arranged, wherein a spray pipe is arranged at the tail end of the engine while a T-shaped thrust mandrel is arranged at the front end of the same; a thrust measuring device for measuring the post-thrust of the engine is arranged close to the thrust mandrel; a compensation device for compensating friction force for the engine is arranged at the tail end of the engine; a capsule door capable of being opened is arranged on one side, close to the spray pipe, of the experiment capsule; a first sliding block guide rail mechanism is fixedly connected with the bottom of the engine, limiting device for limiting the horizontal movement of the engine is arranged at each of two ends of the first sliding block guide rail mechanism; the bottom of the first sliding block guide rail mechanism is fixed in the experiment capsule by a second sliding block guide rail mechanism; a vacuum capsule is also connected with the experiment capsule by a pipe; the vacuum capsule, the thrust measuring device, the compensation device and the capsule door are all connected to a control host. The measurement of the engine post-thrust is achieved through simulating the vacuum environment by the vacuum experiment capsule, switching the work condition by a movable thrust block to protect the normal use of the first thrust sensor, and adopting the slide rail and the friction force compensation device to overcome the influence of the friction force to the post-thrust.

The invention discloses a test engine. The test engine comprises a thrust block, a charging combustion chamber and a spray pipe assembly which are arranged in sequence. The end, close to the thrust block, of the charging combustion chamber is further provided with an igniter pad. The test engine is characterized in that a gap between the thrust block and the charging combustion chamber as well as a gap between the charging combustion chamber and the spray pipe assembly are sealed by adoption of a clamping ring structure. By adoption of sealing with the clamping ring structures, only radial sealing surfaces are arranged on a shell, the sealing surfaces need to be protected only in the using process, and cleaning and maintenance are convenient. If being rusted, the sealing surfaces can be ground and derusted according to the design sizes of the sealing surfaces. Based on a fatigue life estimation method, clamping rings can be reused for 50 times or above theoretically, a spray pipe shell can be reused for 30 times or above, and the shell and a spray pipe blind nut can be used for a long time.

A motor is disclosed that uses magnetic propulsion for generating movement along a travel path in which the motor controller is mounted onboard the thrust block, thereby reducing connections the need for a remote motor controller. The motor includes a thrust rod extending along a travel path. The thrust rod includes an array of magnets arranged along the travel path arranged to create magnetic fields spaced along the travel path for generating magnetic propulsion when electrical coils on the thrust block are energized. The thrust block comprising a mounting body, electrical coils, and the onboard motor controller. The block may integrally provide a bearing surface that slides along a rail that may also provide the mounting structure and main support for the motor. A encoder mounted to the thrust block with a scale mounted directly to guide rail is also provided.

A rail mounting system for a firearm includes a shroud on the fore end having a plurality of spaced rectangular pads with raised, rectangular top surfaces and opposed sloping sides forming an opposed pair of side walls that intersect with the shroud surface at an acute angle. The rail mounting system also includes a mounting rail having spaced apart relief sections conforming to the locations of the pads with recessed rectangular relief bottoms and opposed sloping sides forming an opposed pair of angled side walls at the same angle as the pad side walls. The side walls of the pads and relief sections are in contact with each other along at least some of their vertical distances. The pad top is spaced from the relief bottom and the shroud surface is spaced from the rail underside.

The invention discloses a disc spring type vibration attenuation thrust bearing which comprises a shell body and a thrust shaft, bearing bushes are arranged on both sides of the shell body, the thrust shaft is supported in the bearing bushes of the shell body, a thrust ring is arranged on the thrust shaft, thrust block groups, thrust support rings and washers are symmetrically arranged on both sides of the thrust ring. The disc spring type vibration attenuation thrust bearing is characterized in that a ring-shaped dovetail groove with an opening is arranged at one end of the thrust support rings, the thrust block groups are arranged in the ring-shaped dovetail groove in a clamping mode and distributed in a ring shape, through holes are formed in the ring-shaped dovetail groove of the thrust support rings at intervals, thrust block supports and disc spring groups are arranged in the through holes, the outer ends of the thrust block supports are tightly close to the thrust block groups, the inner ends of the thrust block supports are configured with the disc spring group and gaps are reserved between the thrust block supports and the washers, and the washers are fixedly connected with the inner end of the shell body. The vibration attenuation disc spring groups are arranged so as to reduce longitudinal rigidity of a shaft system, enable longitudinal inherent frequency of the shaft system to be reduced, stagger resonance with a propeller, and decrease transmission of longitudinal vibration of the shaft system.

The invention discloses a ball screw pair-driven clamping mechanism. The ball screw pair-driven clamping mechanism comprises four pull rods, a tail plate, two toggle mechanisms, a movable mould plate, a head plate, a synchronous pulley, a screw bearing base, a ball screw, a ball nut and a thrust block, wherein the four pull rods fix the distance between the head plate and the tail plate and are used for guiding movement of the movable mould plate. The ball screw pair-driven clamping mechanism is driven by a servo motor; and through a toothed synchronous belt and a ball screw pair, rotation of the motor is converted into back-and-front movement of the thrust block to drive a toggle link mechanism so as to open and close the movable mould plate.

An apparatus for effecting non-contact linear door displacement comprising a tubular motor formed of a stator (1) formed from a plurality of magnets (21) arranged along a linear axis (15), and at least one thrust block (3) each formed of at least one electrically conductive coil encircling the stator (1) at a distance sufficient to facilitate electro-mechanical interaction between the plurality of coils and the stator (1), at least one door (5) attached to at least one of the plurality of thrust blocks (3) via a hanger (9) and the at least one door (5) capable of a movement in the direction of the linear axis (15), a rolling component (11) to enable movement of the hanger (9) in the direction of the linear axis (15), and a control mechanism (70) for sensing the position of each of the at least one door (5) and issuing an electrical control signal to each of the plurality of thrust blocks (3) so as to affect the movement of the at least one door (5).

An apparatus for making a cold-pilger-rolled tube has two grooved pilger work rolls rotatable in a roll frame about respective axes to compress a tubular workpiece moving in a travel direction around a mandrel extending in the direction between a nip formed between the grooved rolls and anchored upstream of the nip in a thrust block. An outside diameter of the workpiece is measured downstream in the direction from the rolls as the workpiece passes through the nip, and an actuator engaging one of the rolls relative the other of the rolls shifts it transversely to the travel direction as the workpiece passes through the nip in accordance with the measured outside diameter for maintaining a uniform outside diameter of the workpiece.

The invention discloses a measuring device for thrust loading of a sliding thrust bearing. The measuring device comprises an annular base plate, wedge-shaped sliding blocks and resistance strain type force meters. The annular base plate is coaxially arranged between a thrust block holder and a thrust bearing shell in a sleeved mode. A plurality of radial holes are formed in the circumferential direction of the peripheral end face of the annular base plate. Through holes communicated with the radial holes are formed in the positions, corresponding to the radial holes, of the shell. The wedge-shaped sliding blocks are contained in the radial holes in the annular base plate through the through holes in the shell, and can be pulled out of the shell from the radial holes through the shell. The resistance strain type force meters are contained in the sliding blocks, and one end of each resistance strain type force meter abuts against and is connected with the thrust block holder. The invention further discloses a measuring device for the thrust loading of the sliding thrust bearing, and the application of the measuring device and method. According to the device and the method, the structure of the thrust bearing is slightly modified, and particularly the supporting structure of a thrust block is not changed; the lubrication performance of the thrust bearing is not affected, and the risks of safety running of the thrust bearing are not increased; meanwhile, the force meters can be easily overhauled and replaced under the condition that the shell of the thrust bearing is not disassembled.

The invention relates to a method for installing compression and decompression chambers and a transition chamber of a saturated submersible ship, comprising the following steps: S1, marking and installing a base; S2, pre-assembling a pressing plate; S3, leveling; S4, mounting an X-direction thrust block, a Y-direction thrust block and a 7-shaped pressing block: welding the X-direction thrust block, the Y-direction thrust block and the bottom surface of the 7-shaped pressing block on the base, and respectively welding the side surfaces of the X-direction thrust block and the Y-direction thrustblock on the side walls of the pressing plate, wherein the upper end of the 7-shaped pressing block is pressed on the upper surface of the base, and the side walls of the 7-shaped pressing block and the side walls of the pressing plate and the base are respectively provided with a gap, and the compression and decompression chambers can be slightly displaced in the X-direction and the transition chamber can be slightly displaced in the Y-direction; and S5, performing infusion of epoxy layer. The method for installing compression and decompression chambers and a transition chamber of a saturatedsubmersible ship solves the technical problem that the compression and decompression chambers and the transition chamber of the saturated submersible ship are difficult to ensure the level when beinginstalled, reduces the installation difficulty, shortens the installation time and saves the installation cost compared with the conventional installation method of leveling with the steel cushion block.

The invention provides a vertical type unit axis swing degree measuring and adjusting experimental device and experimental method. The experimental device comprises a supporting structure, a measuring and adjusting object and a measuring system. The measuring and adjusting object simulates a vertical type unit axis swing degree measuring structure, the axis swing degree can be set freely only by adding gaskets with the proper thickness to the position between a thrust bearing and a thrust block and the position between the thrust bearing and a rigid coupling, and the swing degree is applied to measurement, calculation, analysis and treatment. The axis swing degree is measured and calculated, the scraping value of the axis swing degree on the motor thrust bearing and the end face of the right coupling is calculated and treated, and consistency between the calculated scraping value and the direction of the swing degree and the thickness of the gaskets and the direction of the gaskets is verified. The swing degree is quite conveniently processed by removing the gaskets, a plurality of schemes can be test, calculated, analyzed and processed in a short time, and therefore a swing degree measuring tool can be used in a skilled mode, the swing degree measuring method can be mastered in a skilled mode, the measuring mechanism is known, and how to analyze and process the swing degree is learnt, so that the teaching quality is improved.

The present invention discloses a slide valve type pin valve coupling of a marine diesel engine, which comprises a pin valve body, a pin valve, a thrust block seat, a spout and a fastener which are suitably assembled together; wherein, the pin valve, the front part of which is extended into the cavity of the spout via the front hole of the pin valve body, is arranged in the cavity of the pin valve body in clearance fit; the rear cavity of the pin valve is in interference fit with the periphery of the front part of the thrust block seat in a sliding way; the front part of the pin valve is in interference fit with the spout in a sliding way; the rear part of the thrust block seat is provided with a lug boss, which is in interference fit with the rear end surface of the pin valve body; the assembling position of the spout is determined by the fastener; the pin valve can directly shut the spray hole of the spout by shutting a high-pressure oil circuit and can prevent the spray hole of the spout from being blocked by carbonized residue fuel oil in the cavity of the spout to the maximum extent; high-pressure diesel oil is sealed in a cavity formed by the pyramidal surface of the pin valve and the seat surface of the pin valve body. The pin valve coupling, which can meet the requirement of the marine diesel engine on the pin value coupling of an oil atomizer, has the advantages of ingenious structure, small volume, good performance, low oil consumption, little discharge, strong reliability, little carbon deposit in the spout, long service life of the spout, etc.

The invention discloses equipment for assembling character wheels into a character wheel bin shell. The equipment comprises a shell feeding device, a character wheel assembling device and an insertionshaft device; the shell feeding device comprises a first feeding groove, a conveying groove, a transition groove and a transition cylinder for being communicated with the first feeding groove or theconveying groove; the feeding device further comprises a pushing device, and an assembling station is located at the conveying groove; the character wheel assembling device comprises a discharging channel, a transition shaft, an ejector column for pushing character wheels inside the discharging channel onto the transition shaft, a pushing cylinder, a thrust block and a shaft extraction cylinder, and the transition shaft runs through a via hole in the thrust block to be connected with a movable portion of the shaft extraction cylinder; the device further comprises an assembling arm for grabbingthe character wheels running through the transition shaft and conveying the character wheels into the character wheel bin shell at the assembling station. The equipment can automatically complete theworking procedures of character wheel bin shell feeding, character wheel assembling and insertion shaft assembling.

The invention relates to a discharging device for a full-automatic shaft servo manipulator, belongs to the technical field of machinery, and solves the problem that a traditional discharging mode cannot be used with a manipulator feeding device. The discharging device comprises a frame and a material box, the material box is used for placing rod materials and is obliquely mounted on the frame, a discharging channel is obliquely arranged on the material box and is provided with a feeding end and a discharging end, the feeding end of the discharging channel is communicated with the material box, the discharging channel continues linearly extending forwards to form an extension portion along the oblique direction of the discharging channel, an opening of the discharging end of the discharging channel is vertically upward, an ejection device capable of ejecting the rod materials from the opening of the discharging end is arranged below the discharging end of the discharging channel, the rod materials fall into the extension portion through the ejection device, and a thrust block capable of preventing the rod materials from breaking away from the extension portion is arranged on the extension portion. By the aid of the structure, the discharging device can be used with the manipulator feeding device, and discharging automation is realized.

A beach refuse collection device belongs to the field of environmental protection. The beach refuse collection device comprises a garbage truck, wheels, a first hydraulic cylinder, a thrust block withprickle, a compression push block, a garbage bin, a gravel box, a leakage net, a shovel plate, a first step motor, a belt, a pulley, a filter drum, a second stepping motor, a first support base, a first support, a third stepping motor, a second support, a first mounting station, a coupling, a first shaft, a first bearing, a second mounting station, a mounting nut, a mounting plate, a cam, a thirdsupport, a first slide block, a first sliding shaft, a fourth support block, a fourth stepping motor, a connecting rod, a second slide block, a second sliding shaft, a connecting shaft, a second hydraulic cylinder, a second support block, a wheel shaft, a second bearing and a second shaft. The beach refuse collection vehicle designed by the invention adopts two garbage filtration methods and combines them to clean up more clean, convenient and quick. The beach surface layer is completely sent into a garbage truck for filtering and cleaning by using shovel plates, so that the garbage cleaningwork is cleaner.

The invention belongs to the technical field of clamping facility and equipment, and particularly relates to a double-point positioning compounding clamping device. The double-point positioning compounding clamping device comprises a transmission piece, a thrust block which is in transmission connection with the transmission piece, an ejector rod, a pressing plate hinged with a machine frame, an inclined block and a support pillar; one end of the ejector rod is in transmission connection with the thrust block, and the other end of the ejector rod is detachably connected with the pressing plate; one end of the inclined block is connected with the thrust block through a shaft; and the inclined block is in transmission connection with the support pillar. The invention aims to solve the problems that the conventional clamping device is not convenient to use, consumes time and labor during operation and is high in production cost due to unreasonable structural design.