95 results about "Gudgeon pin" patented technology

The invention discloses sorting equipment and a sorting method for detecting the outer diameter of a piston pin, relates to the field of object sorting equipment, and solves the problems that the automation degree is relatively low when the existing sorting equipment for detecting the outer diameter of the piston pin is used, and the piston pin is easy to roll randomly in the process of sorting and conveying the piston pin to generate collision and abrasion. Comprising a workbench, an input frame, a detection mechanism and a sorting mechanism, the detection mechanism comprises a furnace number recognizer, an outer diameter detector, a laser marking device and a conveying piece, and the sorting mechanism comprises a rotating disc and an output piece. Data are transmitted to the laser marking device, the laser marking device is controlled to carry out laser marking treatment on the ends of the piston pins, the sorting mechanism controls the rotating state of the rotating disc so that the output piece can carry out bearing and transferring on the piston pins, and the abrasion condition in the sorting and conveying process of the piston pins is reduced.

The discharging device for piston pin production comprises a box body and a feeding cover, the feeding cover is arranged at the top of the box body, a vibration assembly is arranged on the box body, a slag and dust removing assembly is arranged in the box body, a discharging pipeline is arranged at the bottom of the box body and communicates with the interior of the box body, and a circular opening is formed in the bottom of the box body. An outer frame is arranged on the side surface of the box, a driving motor is installed on the surface of the outer frame, the output end of the driving motor is connected with a rotating cylinder, a plurality of material carrying plates are arranged on the surface of the rotating cylinder, and partition plates are arranged in the box. By means of the technical scheme, the problems that in the prior art, an existing device cannot clean scrap iron, manual cleaning is usually needed, the workload of workers is increased, the production efficiency of piston pins is reduced, meanwhile, in the discharging process of the existing device, the piston pins are always stacked at a certain position for discharging, and the production efficiency of the piston pins is affected are solved. The bearing capacity of a certain position of the device is large, and the service life is influenced.

The utility model discloses a steel piston which is characterized in that an inclined oil hole platform is arranged at the bottom of an inner cavity of an inner cavity surface of a steel piston main body and protrudes out of the surface of the inner cavity surface, and an inclined oil hole communicated with a lubricating oil channel is formed in the inclined oil hole platform; cooling lubricating oil stored in the cooling oil cavity enters the contact faces of the connecting rod, the piston pin and the piston pin hole sequentially through the lubricating oil channel, the inclined oil hole and the oil hole in the connecting rod small end, the protruding inclined oil hole platform structure is easier to forge and form compared with a small pit structure, the blank manufacturing difficulty is lowered, and the machining efficiency is improved. The protruding inclined oil hole platform structure can better guide cooling lubricating oil in the cooling oil cavity to flow into the connecting rod and the piston pin, lubrication is provided for contact between the piston pin hole and the connecting rod and the piston pin, and the occlusion risk is effectively reduced. The lightweight design and the machining quality are both considered, and meanwhile the failure risk of the piston in an engine is reduced.

The utility model discloses a quick disassembly and assembly type gas compressor connecting rod connecting mechanism, including device body, the device body contains connecting rod, connecting rod front end connection piston ring and connecting rod rear end connection connecting rod upper shoe, be equipped with piston pin in the piston ring, one end of connecting rod upper shoe is equipped with connecting rod lower shoe, be equipped with inserting hole no.

An assembly connects a pitman arm to a slot in a crank arm of a pumping unit. A pin extends from the pitman arm disposed on a first side of the crank arm. The pin is disposed in the slot of the crank arm and has a distal end exposed on a second side of the crank arm. The distal end defines an external shouldered profile. A clamp is positioned on the distal end of the pin. The clamp has an internal shouldered profile, which is configured to engage the external shouldered profile on the pin. One or more spacers are disposed on the clamp and are configured to adjustably extend from the clamp toward the second side of the crank arm.

The invention provides a spherical puffing pump which comprises a stator, a spherical inner cavity is formed in the stator, and a spherical rotor is arranged in the spherical inner cavity; the stator is provided with a liquid inlet, a liquid outlet and an air inlet device which are communicated with the spherical inner cavity; the spherical rotor comprises a piston and a turntable, a piston pin seat is arranged in the center of the bottom of the piston and is of a cylindrical convex surface structure, and the central axis of the cylindrical convex surface passes through the sphere center of the spherical inner cavity; a turntable pin seat is arranged in the center of the top of the turntable and is a cylindrical concave surface matched with the piston pin seat; according to the spherical puffing pump provided by the invention, the rotary table pin seat is matched with the piston pin seat, and meanwhile, the cylindrical concave surface of the rotary table pin seat covers more than one half of the cylindrical convex surface of the piston pin seat in the circumferential direction, so that when the spherical puffing pump is disassembled and cleaned, the rotary table can be taken out while the piston is pulled, the disassembly difficulty is greatly simplified, and the disassembly efficiency is improved. The time required for dismounting the spherical rotor is shortened, and the cleaning efficiency is improved.

The utility model relates to the field of piston machining equipment, in particular to a positioning and clamping device for a piston pin hole seat. The positioning and clamping device comprises a clamping structure suitable for clamping a workpiece; the correcting rod is suitable for being inserted into a workpiece pin hole; the positioning rod is mounted on the clamping structure; the proximity switch is mounted on the clamping structure and is close to the positioning rod; the proximity switch is configured to give out light reminding when the correcting rod abuts against the positioning rod. The positioning and clamping structure for the piston pin hole seat is provided with the proximity switch, so that an operator can correctly determine that a workpiece is installed in place, the phenomenon that the perpendicularity of the inner end face of the milling pin hole seat and the axis of a pin hole is out of tolerance is avoided, and the machining quality of the workpiece is guaranteed.

The utility model relates to the technical field of piston pin machining, and particularly discloses a piston pin machining oiling device which comprises a workbench, a connecting plate is arranged on the left side of the top of the workbench, a bearing plate is arranged on the top of the right side of the connecting plate, an oiling assembly is arranged on the top of the bearing plate, and a rotating assembly is arranged on the right side of the top of the workbench. The rotating assembly comprises a rotating disc, the rotating disc is located on the right side of the top of the workbench, and a motor is arranged below the rotating disc. Firstly, the bottom of the piston pin is inserted into the clamping plate, the piston pin can be conveniently inserted into the clamping plate through the inclined plate on the clamping plate, after the piston pin is inserted into the clamping plate, the clamping plate can move outwards, the spring can be driven to move outwards through the clamping plate, and at the moment, the piston pin can be fixed into the limiting ring through cooperation of inertia of the spring and the clamping plate; six piston pins can be fixed in the six limiting rings in sequence, and then the oil injection assembly injects oil to the piston pin under the oil injection assembly.

A pump assembly may include a bearing housing having a bore. The pump assembly may include a connecting rod connected to the bearing housing at a first end of the connecting rod and connected to a crosshead at a second end of the connecting rod via a wrist pin. The connecting rod may include a lubrication channel that extends within the connecting rod. The pump assembly may include a shell bearing in the bore of the bearing housing, the shell bearing having an inner surface and an outer surface. A portion of the inner surface of the shell bearing that contacts the crankshaft in a forward stroke of the crosshead may be uninterrupted by a groove or an aperture configured to direct lubrication fluid to the lubrication channel of the connecting rod.

The utility model discloses a large -scale marine engine piston pin installation frock, including boom mechanism, piston pin support subassembly, piston pin axial swing mechanism and piston pin center hole expansion mechanism, and the vertical fine adjustment mechanism middle part is vertically welded to the one end of suspension arm, and the lifting eye screw is fixed on the suspension arm. The lower extreme of vertical fine adjustment mechanism is connected with the upper extreme of vertical rod, and the lower extreme of vertical rod is fixedly connected with one end of piston pin axial swing mechanism. The bottom center of V-shaped support seat is fixed on the middle part of piston pin axial swing mechanism. The piston pin is supported on V-shaped support seat, and piston pin center hole expansion mechanism is inserted into piston pin center hole and is tightly connected, and the lower extreme of piston pin center hole expansion mechanism is fixedly connected with the middle part of piston pin axial swing mechanism. The utility model is simple to operate, convenient to use, and except using the crane, only one person operation can complete the installation of piston pin, improves the installation efficiency of piston pin obviously, and effectively guarantees the assembly safety of piston pin.

The utility model provides a strengthening treatment device for a marine diesel engine piston pin, which relates to the technical field of diesel engine piston pins and comprises a cooling pond and a fixing component, an electromagnetic coil is arranged on one side of the cooling pond, a displacement device is arranged on one side of the cooling pond by the aid of the fixing component, and the electromagnetic coil is arranged on the other side of the cooling pond. The displacement device is used for changing the positions of the piston pins in the cooling pond, the displacement device comprises a placing frame, a motor is arranged on one side of the placing frame, and the output end of the motor is fixedly connected with a half gear. And then the situation that when the multiple piston pins are quenched at the same time, the multiple piston pins can be stacked at the bottom of the cooling pond, then partial areas of the piston pins coincide, and then rapid quenching cooling of the piston is affected is avoided, so that the using effect of the strengthening treatment device can be improved.

The utility model discloses efficient rough grinding equipment for processing a piston pin, which belongs to the technical field of piston pins, comprises a workbench, and is characterized in that a cushion table is fixedly arranged on the left side of the upper part of the workbench, a first motor is fixedly arranged on the upper part of the cushion table, and a first grinding wheel is fixedly arranged at the front end of an output shaft of the first motor; a rotating shaft is rotatably arranged at the front part of the fixing seat; a second grinding wheel is fixedly arranged at the front end of the rotating shaft; a second motor is fixedly arranged on the right side of the upper part of the upper plate; a belt is arranged between the front end of an output shaft of the second motor and the rotating shaft in a sleeving manner; a vertical plate is fixedly arranged on the right side of the cushion table, a material carrying part is fixedly arranged on the upper portion of the vertical plate, and the center of the first grinding wheel, the center of the second grinding wheel and the center of the material carrying part are equal in height.

A piston assembly is provided with a piston skirt coupled to a piston head. The piston skirt has an outer surface that defines a cavity between a first end and a second end of the piston skirt. A support is coupled to the piston skirt and positioned within the cavity. A wrist pin is mounted on the support. The wrist pin includes a first end and a second end. In various embodiments, the wrist pin includes a mounting wall with a surface extending along a plane from the first end to the second end, and a connecting rod is coupled to the mounting wall. In other embodiments, the piston assembly includes channels and openings to provide fluid communication for oil from an inlet located on the connecting rod to an outlet on the support in order to provide cooling to the piston head.

The utility model belongs to the technical field of engine pistons, and discloses a transverse flow scavenging outboard engine piston which comprises a piston body and an air cylinder, and the piston body comprises a piston skirt part, a piston head part and a piston convex top. Through cooperation of a piston convex top, a piston pin, a first flow guide angle, a second flow guide angle and other structures, the device has the effects of being high in scavenging efficiency and reducing oil consumption, the piston body moves to the exhaust hole, waste gas in the air cylinder is exhausted from the exhaust hole through the first flow guide angle, then the piston body continues to move downwards, and the effect of reducing oil consumption is achieved. Through the design of the second flow guide angle on the convex top of the piston, waste gas in the air cylinder is guided out through the second flow guide angle, and when the piston body crosses a lower dead center to move upwards, mixed gas is guided through the convex top of the piston, so that the waste gas in the air cylinder is removed more thoroughly, and the effect of few waste gas residues is achieved; and the performance of the engine is improved.

The application discloses a kind of piston pin hole bushing interference fit performance test device, comprising: test platform;Auxiliary mechanism, be set on test platform, for the head of fixed test piston;Quick positioning mechanism, be set on test platform, for the pin hole position of positioning test piston;Loading mechanism, be set on test platform, including rotary force loading unit and remove force loading unit, the loading mechanism is used to connect with the bushing of test piston, and respectively exert rotary force and axial removal force;The application also provides a kind of piston pin hole bushing interference fit performance test method.The piston pin hole bushing interference fit performance test device and experimental method provided by the application can directly measure the removal force and rotary force of the bushing under interference fit state, can quickly evaluate the rationality and reliability of different interference tolerance design, significantly shorten the verification period, reduce test cost, improve design efficiency.

The utility model discloses a single-cylinder two-stroke cam piston engine, which relates to the technical field of thermodynamic piston internal combustion engines, and comprises a cylinder body with radiating fins and an oil tank, the side end of the cylinder body with the radiating fins is provided with a motion assembly, and the motion assembly comprises a propeller fixing screw, a propeller body, a flywheel with a magnet and a fixing support. The power transmission assembly is arranged in the cylinder body with the cooling fins and comprises a transmission main shaft, a piston pin, a piston body and a cylinder sleeve, a cam pin is fixed to a cam cover body and penetrates through a curve-shaped cam groove of the piston body, a traditional crank-link mechanism is replaced, linear motion of the piston body is converted into rotary motion, and the rotary motion of the piston body is converted into rotary motion. And the cam bush is arranged at the tail end of the cam pin in a sleeving mode and matched with the cam cover body, friction between the cam pin and the cylinder body is reduced, transmission smoothness is improved, and the bearing reduces radial and axial jumping during rotation of the main shaft and reduces friction loss.

The invention discloses an air compressor with a piston convenient to disassemble and assemble, belongs to the technical field of air compressors, and solves the problem that the piston of an existing air compressor is inconvenient to disassemble and assemble. The air cylinder comprises an air cylinder body, an air cylinder cover, a piston, a connecting rod and an air cylinder sleeve, the air cylinder sleeve and the air cylinder cover are of a split structure, the upper portion of the air cylinder sleeve is inserted into the air cylinder cover, the lower portion of the air cylinder sleeve is inserted into the air cylinder body, and a sealing structure is arranged between the air cylinder sleeve and the air cylinder cover. The piston is inserted into the cylinder sleeve in a sliding mode, a needle bearing is installed at the small end of the connecting rod, the small end of the connecting rod is vertically inserted into the piston, the large end of the connecting rod penetrates through the cylinder sleeve and extends into the cylinder body, a piston pin is arranged in the piston, and the piston pin is inserted into the piston and an inner ring of the needle bearing. And the piston internal threads at the two ends of the piston pin are connected with inner hexagon bolts. According to the air compressor, the piston can be rapidly disassembled, assembled and maintained, meanwhile, the rotating stability of the connecting rod is improved, and the service life of the piston is prolonged.

The utility model discloses efficient slotting equipment for processing a piston pin, which belongs to the technical field of piston pins, comprises a base, and is characterized in that a fixed seat is fixedly arranged on the left side of the upper part of the base, a fixed sleeve is fixedly arranged on the right side of the fixed seat, a rotating sleeve is rotatably arranged at the central position of the right side of the fixed sleeve, and a sliding rail is fixedly arranged on the right side of the fixed seat; a front carrying plate is fixedly arranged on the front side of the upper portion of the sliding plate, a cutter is horizontally arranged above the front carrying plate, a rear carrying plate is fixedly arranged on the rear side of the upper portion of the sliding plate, and a transition block is fixedly arranged on the upper portion of the rear carrying plate; the upper portion of the inclined plate corresponds to the output end of the transverse pipe, the lower portion of the inclined plate corresponds to the upper surface of the transition block, the operation box is fixedly arranged on the right side of the upper portion of the base, and the distribution box is fixedly arranged on the front portion of the base.

The utility model discloses a kind of feeding devices for compressor piston pin plug-in installation, it includes processing table:The top of the processing table is fixedly connected with plate frame, the inner wall of the plate frame is fixedly installed with chute plate by bolt, the inner wall of the plate frame is rotatably connected with two symmetrical setting rotating rods, the surface of the rotating rod is fixedly connected with sprocket, the surface of the sprocket is drivingly connected with chain, the surface of the chain is fixedly connected with load block by bolt.The utility model drives load block and push block transmission by chain, so that push block will pin rod be pushed out from the top of chute plate to the surface of load block, simultaneously chain drives pin rod to move to plug-in station by load block, i.e. it can reach multiple pin rods can be placed in chute, subsequently transmission feeding of pin rod is carried out by the cooperation of push block and load block driven by chain, meet the demand of pin rod feeding when piston pin plug-in production, to improve the purpose of piston pin plug-in efficiency.

The invention provides a positioning clamp for piston pin hole machining, and belongs to the technical field of machining. The clamp comprises a base, a positioning disc, a positioning block, a stand column, a cross beam, a pressing mechanism and a sliding supporting assembly. The positioning disc is installed on the base and used for being matched with a bottom spigot of the piston. The positioning block is used for circumferential positioning of the piston. The cross beam is rotatably connected to the stand column through a rotating shaft assembly. The pressing mechanism is arranged on the cross beam and used for pressing the top end face of the piston downwards. The sliding supporting assembly is arranged on the cross beam and used for providing supporting in the rotating process of the cross beam. The principle of lower positioning and upper pressing is adopted, pressing force acts on the top, with the strongest rigidity, of the piston, extrusion deformation of the skirt portion of the thin-wall piston during clamping is effectively avoided, and the machining precision is remarkably improved. Meanwhile, the sliding supporting assembly integrated with the universal wheels enables operation to be convenient and efficient, labor intensity is reduced, and the piston pin hole machining device is suitable for efficient and high-precision machining of piston pin holes.

The application discloses a kind of automatic feeding and discharging equipment for piston pin stamping, and relates to the field of stamping equipment, solve the problem that the existing piston pin stamping feeding and discharging equipment is low in automation degree when using and the local area of conveying equipment is seriously worn when conveying blank, which affects the stability of conveying and the service life of equipment, including base, punch, feeding mechanism, carrying mechanism and output mechanism, the feeding mechanism includes conveying frame, conveying belt and guide piece, the application controls the guide piece to clamp and guide blank according to the width of blank through feeding mechanism, and the position of conveying belt is adjusted intermittently during the operation of conveying belt, so that the surface of conveying belt can uniformly rub with the bottom surface of blank, the blank on conveying belt is clamped and carried to punch by carrying mechanism, at the same time, the discharging efficiency of product after stamping can be improved, and the quality of piston pin after stamping is detected and classified by output mechanism.

The general internal combustion engine flexible connecting rod is consistent with a traditional general internal combustion engine rigid connecting rod in basic shape and function, and the difference is that a connecting rod small end (2) is elastically connected with a connecting rod large end. When the piston (1) is subjected to a certain pressure of a combustion chamber, the distance between the piston pin (12) and the crankshaft (14) is elastically changed, the piston (1) forms a flexible combustion chamber, combustion factors of an internal combustion engine are comprehensively influenced, and the flexible combustion chamber is suitable for different fuel combustion adaptability, reliable ignition, automatic ignition phase control, stable combustion process and recycling of energy flow. A technical approach is provided for expanding the heating cycle heat efficiency space of a general internal combustion engine, using new energy and reducing carbon emission.

The application provides an internal combustion engine piston pin rough machining equipment, relates to the internal combustion engine part machining technical field, and aims to solve the problems of low machining efficiency, poor multi-specification adaptability, high waste rate and low automation degree of the existing piston pin rough machining equipment. The internal combustion engine piston pin rough machining equipment comprises a bed base, a tool holder component and a three-station rotary clamping component. The bed base is provided with a chip collecting groove and a controller with built-in multi-specification machining parameters. The tool holder component is provided with an installation seat capable of moving in the axial and radial directions and a laser diameter measuring instrument capable of adjusting the position up and down, and cooperates with an inclined scrap discharging plate to realize automatic chip removal. The three-station rotary clamping component drives a center shaft to complete 120 precise indexing through a hydraulic cylinder. Three groups of slidable movable seats are equipped with laser range finders and independent self-rotating six-jaw chucks to realize stepless adjustable clamping and parallel operation of different specifications of piston pins. The application can realize full-process automation of detection and cutting machining and is suitable for rough machining production of large quantities of multi-specification piston pins.

The present application relates to the field of mechanical manufacturing, in particular to a preparation method of engine piston pin hole coating for different metal substrates. The present application prepares multi-element coating on the engine piston pin hole of different metal materials through plasma chemical vapor deposition (PECVD) technology, and determines the friction coefficient in different environments, and realizes the optimization matching of the coating according to the friction coefficient. The selected coating of the present application can effectively improve the friction resistance and corrosion resistance of the engine piston pin hole.

The invention belongs to the technical field of precision machining, and particularly relates to a piston pin polishing monitoring system which is characterized in that data such as a temperature field, stress and surface morphology are acquired through a multi-dimensional sensing array, and thermal deformation deviation is corrected in combination with a multi-physics field coupling model; a self-adaptive decision framework is constructed by adopting deep reinforcement learning DRL, and a polishing strategy is optimized through digital twinborn verification; lIBS material identification and multi-process linkage are integrated, and rapid adaptation of 12 types of materials is achieved; real-time control and global optimization are balanced based on an edge-cloud collaborative architecture; environment-friendly safety monitoring is added, and the green manufacturing standard is met. The system solves the problems that a traditional system is low in precision, poor in adaptability and high in cost, the surface roughness Ra of the piston pin is smaller than or equal to 0.8 micrometer, the percent of pass is increased to 99%, and the system is suitable for batch production of high-precision piston pins.

A rotating cylinder is rotatably mounted at the bottom of the inner side of a piston cylinder, piston pins are inserted into two sides of the bottom of the piston cylinder, a connecting frame is movably sleeved on the outer sides of the piston pins, a hollow sleeve is mounted at the top of the connecting frame, the hollow sleeve is rotatably sleeved on the outer sides of the piston pins, and a connecting rod cover is fixedly mounted at the bottom of the connecting frame. A connecting rod bush is detachably installed at the bottom of the connecting rod cover through a bolt, a transmission cylinder is vertically and fixedly installed in the middle of the top end of the rotating cylinder, the top of the transmission cylinder is rotatably connected to the middle of the top end of the piston cylinder in an inserted mode through a bearing, and a conversion mechanism is arranged in the transmission cylinder. And while the whole top surface of the piston cylinder is prevented from being damaged due to overlarge external gas pressure, after the external pressure is recovered to a threshold value, the transmission cylinder restores to rotate, so that the first exhaust hole and the second exhaust hole are separated from each other, the top surface of the piston cylinder is sealed, and thus the transmission use reasonability of the piston cylinder is guaranteed.

An engine is provided with various enhanced features. For example, a 2-stroke diesel engine has a porting design that enhances the efficiency of a scavenging event. In specific embodiments, a four-piece piston is positioned in each cylinder of the engine. The four-piece piston includes a bowl, a ring retainer, a skirt, and a wrist-pin bearing. In various embodiments, fuel pumps are coupled to fuel channels or high-pressure lines to provide a constant and equal high-pressure fuel supply to engine cylinders. In more specific embodiments, the length of each of the high-pressure lines is the same. In certain specific embodiments, complimentary screws form a supercharger that further improves engine efficiency by providing high-pressure intake air to the porting process.

The application provides a piston pin clamping device for automatic chamfering of a piston pin, and relates to the technical field of clamping devices for grinding processing.The device comprises a horizontal support positioning shaft welded on a square positioning sleeve on the upper side, and a shaft ring slidingly sleeved on the horizontal support positioning shaft;the upper half of a second vertical support plate is slidingly sleeved with a convex driving plate through spring pushing, and a vertical support force transmission shaft is welded on the top end of the convex driving plate;the first connecting rod is rotatably installed between the convex driving plate and the shaft ring;the top end of the six-edge vertical support rod is welded with an L-shaped stop rod, the vertical support force transmission shaft is in contact with the L-shaped stop rod when the U-shaped clamping frame slides upward, the power transmission of the vertical support force transmission shaft is used together with the spring on the vertical support sliding rod, the vertical support sliding rod indirectly uses the driving force of the upward and downward sliding of the U-shaped clamping frame to drive the upward and downward sliding of the piston pin, and the trouble of manually opening and closing the vertical support sliding rod every time the piston pin is disassembled and replaced is avoided.

The multifunctional blanking machine for piston pin production comprises a machining table, and a collecting box is arranged on one side of the surface of the bottom of the machining table; a conveying device is fixedly installed on the surface of one side of the machining table, a stabilizing frame is fixedly installed on the surface of the top of the machining table, an air cylinder is fixedly installed in the middle of the surface of the top of the stabilizing frame, a cutting device is arranged on the surface of the bottom of the air cylinder, and a protective cover is fixedly installed in the middle of the surface of the top of the machining table. A sliding groove is formed in one side of the interior of the machining table, and a blocking assembly is arranged in the sliding groove; the blocking assembly comprises a sleeve rod fixedly connected with the sliding groove. Wherein the surface of the sleeve rod is sleeved with a reset spring, by arranging the blocking assembly, the end of the piston pin raw material is blocked, and therefore the piston pin raw material is indirectly cut by different lengths by adjusting the distance between the blocking assembly and the machining table.