174results about "Connecting rods" patented technology

The utility model is applicable to the technical field of engine parts, and provides a steel connecting rod, which comprises a connecting rod body and a connecting rod tile cover, the connecting rod body is detachably connected with the connecting rod tile cover, one end of the connecting rod body far away from the connecting rod tile cover is provided with a small end hole, and the other end of the connecting rod body is connected with the connecting rod tile cover to form a large end hole. A shaft sleeve is arranged in the small-end hole, a bearing bush is arranged in the large-end hole, and an oil throwing spoon is detachably installed on the connecting rod bush cover. The shaft sleeve and the bearing bush are respectively arranged at the small-end hole and the large-end hole of the connecting rod, so that the abrasion can be effectively reduced, the maintenance cost is reduced, the split type oil throwing spoon is simple and reliable to install, and the oil throwing spoon is detachably installed and fixed by using a stamping structural member, so that engine oil can be effectively lubricated, the strength of connecting rod parts damaged by welding is also avoided, and the service life of the connecting rod is prolonged. And the risk is greatly reduced.

A fixed connection structure of a three-section type connecting rod of a medium-speed diesel engine comprises a connecting rod body, a connecting rod upper cover and a connecting rod lower cover, the connecting rod body and the connecting rod upper cover are connected through a connecting rod short stud and a nut, and the connecting rod upper cover and the connecting rod lower cover are connected through a connecting rod long stud and a nut. Reliable cooperation of the connecting rod threaded fastener bearing fatigue and impact loads is improved by optimizing the thread tolerance, the thread root radius and the stud outer diameter requirements of the connecting rod upper cover and the connecting rod short stud. By means of precise thread tolerance fit and optimized tooth bottom arc radius design, fatigue strength and impact resistance of threaded connection are remarkably improved, the problem that traditional connecting rod threaded connection is prone to loosening and failure is solved, and the connecting rod is suitable for the high-load working condition of a high-power medium-speed diesel engine.

The motorcycle engine connecting rod with the good heat insulation performance comprises a rod body, one end of the rod body is connected with a large end, the other end of the rod body is connected with a small end, a lining is arranged in the small end, and a heat insulation ring is fixedly installed between the outer wall of the lining and the inner wall of the small end. And a cavity is formed in the rod body. According to the motorcycle engine connecting rod with the good heat insulation performance, the heat insulation ring is additionally arranged between the connecting rod and the piston to block heat, the connecting rod is designed to be of a hollow structure, and heat transfer is reduced through an air heat insulation layer.

The invention discloses a surface strengthening treatment method for an inner hole of a main connecting rod of a piston type aero-engine. The surface strengthening treatment method comprises the following steps that S100, the main connecting rod is subjected to oil removal treatment; s200, performing waxing treatment on the non-plated surface on the main connecting rod to form an insulating protection layer; s300, weak corrosion activation treatment is conducted on an inner hole of the main connecting rod; s400, a tool clamp is used for installing and hanging the main connecting rod, then a lead and tin plating solution is poured into an inner hole of the main connecting rod for out-groove electroplating treatment, and the lead and tin plating solution comprises 110 g / L to 275 g / L of lead fluoroborate, 30 g / L to 65 g / L of stannous fluoroborate, 1 g / L to 2 g / L of hydroquinone and 1.5 g / L to 2.0 g / L of oxhide gelatin; and S500, the main connecting rod is detached from the tool clamp and then subjected to wax removal and cleaning treatment, and then whether the lead-tin layer is qualified or not is checked. According to the surface strengthening treatment method for the inner hole of the main connecting rod of the piston type aero-engine, the uniformity of a plating layer can be improved, the tin content in a lead-tin layer is increased, and the wear-resisting and lubricating capacity is enhanced.

The utility model relates to the technical field of aviation equipment, and discloses a metal connecting rod mechanism part composite structure which comprises a first reinforcing block and a second reinforcing block, and the first reinforcing block and the second reinforcing block are arranged in parallel. The connection reinforcing frame is fixedly connected between the two first reinforcing blocks and the two second reinforcing blocks; the filling piece is arranged in the connection reinforcing frame and used for filling the connection reinforcing frame; the first coating layer is coated on an integral structure formed by the first reinforcing block, the second reinforcing block and the connection reinforcing frame; the protection assembly comprises a plurality of anti-abrasion parts, mounting holes are formed in the two ends of the first reinforcing block and the two ends of the second reinforcing block, and the anti-abrasion parts are arranged in the mounting holes. According to the utility model, the metal connecting rod mechanism is independently formed, the manufacturing period is short, rapid production can be realized, and the metal connecting rod mechanism has the advantages of light part weight, light weight, short production period and high strength.

The utility model provides a compressor connecting rod which comprises a connecting rod body, one end of the connecting rod body is provided with a first connecting ring used for being rotationally connected with a pin shaft on a piston, and the other end of the connecting rod body is provided with a second connecting ring used for being rotationally connected with an eccentric shaft on a driving component. A first bearing is axially embedded in the first connecting ring, and the first bearing is used for being matched between the first connecting ring and a pin shaft on the piston; a second bearing is axially embedded in the second connecting ring, and the second bearing is used for being matched between the second connecting ring and an eccentric shaft on the driving part; according to the compressor connecting rod, abrasion between the first connecting ring and the pin shaft on the piston can be effectively overcome, abrasion between the second connecting ring and the eccentric shaft on the driving part can be effectively overcome, and therefore the service life of the compressor connecting rod can be effectively prolonged.

The utility model discloses a punch press connecting rod, which relates to the technical field of punch press accessories, and adopts the technical scheme that the punch press connecting rod comprises a rod body and a tilting fillet, a connecting tile is arranged in the tilting fillet, the tilting fillet comprises a first connecting seat and a second connecting seat, and the second connecting seat is fixedly connected onto the rod body; the connecting tile comprises a first tile used for being clamped into the first connecting base and a second tile used for being clamped into the second connecting base, the first connecting base and the second connecting base are connected through an adjusting assembly, and the adjusting assembly is used for enabling the first connecting base and the second connecting base to be separated or folded. According to the punch connecting rod, when the connecting tile needs to be replaced, the tile seat does not need to be detached, operation is convenient and easy, and time and labor are saved.

A crank comprising a coupling (1110) comprising: a first coupling fiber layer (210) and a third coupling fiber layer (230), each layer comprising one or more filaments (100) comprising fibers, the filaments arranged in a first path (210P1) forming a contour (210C1) comprising one or more splines (210S1, 210S2) matching a contour of one or more grooves (1510) of a splined coupling (1500) having a first axis of revolution (Z1), and a second path (210P2) that is concentric to the first path; and a second coupling fiber layer (220), comprised between the first coupling fiber layer and the third coupling fiber layer and comprising one or more filaments (100) comprising fibers, wherein one or more of the filaments of the second coupling fiber layer are arranged in a third path (220P1) at least a portion of which is concentric with a sector (210AS) of the first path and of the second path around the first axis (Z1).

The invention relates to a push-pull rod (10) comprising at least one first fixing device (12), at least one first connecting piece (18) and a positioning device. The first fixing device (12) is provided with a coupling piece (12a) and a rod portion (12b) connected to the coupling piece, the first fixing device (12) is connected to the first connecting piece (18) and can be rotated by means of a thread structure (30) to change the length of the push-pull rod (10). The positioning device is provided with a first and a second positioning piece which are arranged opposite one another in the axial direction and interact, the first and the second positioning piece are pressed against one another by means of a spring piece (28), the second positioning piece of the positioning device is connected to the first connecting piece (18) in a rotationally fixed manner, the second positioning piece is connected to the first fixing device (12) in a rotationally fixed manner, the spring piece (28) acts between the region of the first connecting piece (18) and the region of the second positioning piece, and the positioning pieces lock the rotational movement of the first fixing device (12) relative to the first connecting piece (18) in a releaseable manner by means of a predetermined locking force in a plurality of rotational positions. The first connecting piece (18) comprises a base body (34) and a sleeve (36) which at least partially surrounds the two positioning pieces and the spring piece (28), the base body (34) is connected to the sleeve (36), the sleeve (36) has an inner diameter which ensures the relative movement of the positioning pieces and the spring piece (28) relative to one another, the sleeve (36) is fixed relative to the base body (34) at least in the axial direction, the first connecting piece (18) holds the positioning device in both axial directions by means of the spring piece (28). The positioning device is a locking device (22) with a first locking piece (24) and a second locking piece (26), the second locking piece (26) has a plurality of locking pins (26a) which can be engaged in locking grooves (24b) of the first locking piece (24), and the first locking piece (24) likewise has a plurality of locking pins (24a) which can be engaged in locking grooves (26b) of the second locking piece (26). In the invention, the spring piece (28) is fixed with at least one locking pin (40) corresponding to the second locking piece (26).

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 relates to the technical field of connecting rods, in particular to a length-adjustable connecting rod which comprises a first connecting rod assembly and a lower connecting rod assembly, a connecting and fixing assembly is installed at the lower end of the first connecting rod assembly, and the lower connecting rod assembly is installed at the lower end of the connecting and fixing assembly. Lug seats are fixedly connected to the front end and the rear end of the connecting rod body, a cylindrical oil groove is formed in the lower end of the connecting rod body, limiting shaft grooves are formed in the inner sides of the lug seats, limiting rings are rotationally connected to the inner sides of the limiting shaft grooves formed in the lug seats, bolts are fixedly connected to the inner sides of the limiting rings, and inner threaded cylinders are spirally connected to the outer sides of the bolts; the top end and the bottom end of the connecting rod are fixedly connected with built-in columns, the outer sides of the built-in columns are fixedly connected with first rubber rings, the phenomenon that the adjusted connecting rod is hollow is reduced, the strength and stability of the connecting rod after length adjustment are improved, and then the service life of the connecting rod is prolonged.

The invention discloses a self-adaptive bistable nonlinear energy trap vibration absorption device, belongs to the field of vibration control, and can be used for vibration suppression in the fields of aerospace, precision manufacturing and the like. The device comprises a bistable adjusting device, an electromagnetic damping adjusting device, a hinge connecting rod guiding device, a multi-fulcrum movable frame, a mover mass block and the like. The bistable state is realized by connecting negative stiffness formed by a pre-compression horizontal spring and a hinge connecting rod with a vertical weak positive stiffness spring in parallel, and a motor regulates and controls the pre-compression amount of the horizontal spring through a belt and a worm and gear so as to change the potential well depth; the electromagnetic damper is a Lorentz actuator, a coil is connected with a movable frame, and a permanent magnet is connected with a structural bottom plate; the two acceleration sensors respectively measure the vibration of the movable frame and the structure. The device can adaptively adjust bistable state and damping, achieves optimal target energy transfer, and has the advantages of high robustness, strong broadband line spectrum control and high efficiency.

To provide a coupling member having increased strength against tension, compression, torsion, or the like so that it can be handled for more complex components and can withstand use under a higher load.SOLUTION: A coupling member comprises: an arm part made of a thermoplastic resin, which constitutes two coupling parts located at both end parts of the member and an extension part extending between the two coupling parts; a ring part surrounding the arm part, and made of a thermoplastic resin sheet reinforced with reinforcing fibers extending continuously in a circumferential direction; and a covering part made of the thermoplastic resin, which is arranged at least outside the ring part.SELECTED DRAWING: Figure 1

A compound connecting rod for improving the efficiency of an internal combustion engine. The compound connecting rod includes a connecting rod, a connecting rod carrier, and a collapse blocker. During crankshaft rotation, the compound connecting rod undergoes a non-circular path that increases dwell time of a piston, reduces sidewall friction, and reduces secondary imbalance.

The utility model relates to the technical field of automobile connecting rods, and discloses a wear-resistant aluminum alloy automobile connecting rod which comprises a connecting rod body, the upper side of the connecting rod body is fixedly connected with a connecting rod large head, the lower side of the connecting rod body is fixedly connected with a connecting rod small head, and the upper side of the connecting rod large head is provided with a connecting rod cover. An anti-abrasion assembly is arranged on the inner side of the large connecting rod head and the inner side of the connecting rod cover, a first through hole is formed in the large connecting rod head, and a second through hole is formed in the small connecting rod head. The anti-abrasion assembly comprises protrusions, and the protrusions are fixedly connected to the inner walls of the connecting rod large head and the connecting rod cover. The protrusions on the inner walls of the connecting rod large head and the connecting rod cover increase friction force with a crankshaft and prevent relative sliding abrasion, the abrasion-resistant coatings are directly resistant to abrasion, the coatings in the shallow grooves can supplement the abraded abrasion-resistant coatings, self-repairing is achieved, the heat dissipation fins of the connecting rod body increase the heat dissipation area, the situation that the performance of the connecting rod is reduced due to high temperature is avoided, and the service life of the connecting rod is prolonged. And stable operation of the engine is ensured.

The invention relates to a rod connector device (1) for variably and angularly connecting a first rod and a second rod of a linkage. The invention further relates to a method for holding an end device on a wheelchair. The rod connector device (1) has a locking unit (90) for re-establishing an adjustable target angular position.The rod connector device (1) further comprises: - a first receiving unit (10), wherein the first receiving unit (10) has a first rod receptacle (11) for the first rod, - a second receiving unit (20), wherein the second receiving unit (20) has a second rod receptacle (21) for the second rod, wherein the first receiving unit (10) and the second receiving unit (20) are coupled to each other and can be moved from a loose position to a clamped position, wherein the receiving units (10, 20) are rotatable relative to each other about a pivot axis (A1) in the loose position to vary an angle of the receiving units (10, 20) relative to each other, wherein the receiving units (10, 20) are fixed in the clamped position in a rotationally secure manner.

The technical solution describes a mechanism for deploying and retracting adjustable transport wheels from a floor-based device or furniture of different types, such as a chair, a medical chair, a baby chair, an examination chair (hereinafter collectively referred to as a chair), a bedside table, a bed without a chassis, a cabinet, etc. The solution presented in this patent application uses a very simple mechanism of adjustable transport wheels hidden in the bottom of the device or furniture, which makes it possible to very easily transport and move the furniture from one place to another.

This utility model discloses an anti-detachment automotive linkage, relating to the field of automotive linkage technology. It includes a cover plate, with fixing plates connected to both ends of the cover plate, and locking plates at the bottom of each fixing plate. One end of each locking plate is connected to a base plate. This utility model facilitates installation and disassembly by providing a snap-fit ​​mechanism on both sides of the cover plate and base plate. After aligning the cover plate and base plate, the fixing block at the bottom of the fixing plate is pressed into the support groove on the locking plate. A rotating knob drives the bidirectional screw to move, causing the snap-fit ​​block and locking block to move within the guide groove and engage with the fixing holes on both sides of the fixing block. After fixing, a locating pin is turned to lock the rotating block, thus fixing the cover plate and base plate together. Compared to traditional bolt fixing, this is more convenient and easier to use. The snap-fit ​​mechanism enables quick fixing and separation of components without additional tools or complex operations.

The utility model discloses a fan door opening and closing transmission device which sequentially comprises a driving mechanism, a transmission mechanism and an installation mechanism used for being connected with a door body, the driving mechanism is connected with the transmission mechanism, the transmission mechanism is connected with the installation mechanism, and the driving mechanism comprises an electric push rod, a first fixing seat and an installation frame. The transmission mechanism comprises a second fixing seat and a connecting frame, and the mounting mechanism comprises a connecting rod and a rotating frame arranged on the connecting rod. Power transmission is carried out through the electric motor, when opening or closing is needed, only the micro motor needs to be started, the speed is higher than that of manual opening and closing, when the electric control motor is adopted for opening and closing, the sealing performance is better, and dust and rainwater can be effectively prevented from invading when the draught fan stops working and is closed. The maximum opening and closing angle is 70 + / -10 degrees, the traditional opening and closing angle is 60 + / -10 degrees, the opening and closing degree is improved, the air exhaust and heat dissipation effects are better facilitated, and due to the design of the outer hexagonal rod, opening and closing are firmer, and the loosening or slipping phenomenon is not prone to occurring.

The utility model discloses a crankshaft connecting rod mechanism, a compressor and refrigeration equipment, and belongs to the technical field of compressors, the crankshaft connecting rod mechanism comprises a crankshaft and a connecting rod, the crankshaft comprises a main shaft and an eccentric shaft which are connected, the connecting rod comprises a first rod body, a second rod body and a fastener, and the first rod body is provided with an inserting groove; the second rod body can be inserted into the inserting groove of the first rod body, a through hole penetrating through the inserting groove is formed in the outer wall of the first rod body, the second rod body is provided with at least two connecting holes, the at least two connecting holes are formed in the axial direction of the second rod body at intervals, and the second rod body can move in the inserting groove. Due to the fact that the first rod body and the second rod body can be connected through matching of the connecting holes in different positions and the through holes, the purpose of adjusting the total length of the connecting rod is achieved, the connecting rod can be matched with changes of the eccentric distance of a crankshaft, the center distance of a piston does not need to be adjusted, piston standardization can be achieved, the standardization degree of parts is improved, and production cost can be reduced.

The present invention relates to a fibrous preform of a core portion of a fibrous reinforcing material of a composite material part, which has an elongated shape along the longitudinal direction X and is formed by first yarns C1 to C16 extending along the longitudinal direction and second yarns t1 to t8 crossing the first yarns. In the fibrous preform, the preform includes two longitudinal ends intended for articulation joining with other parts and an intermediate region located between the longitudinal ends. Each longitudinal end has a thickness greater than the thickness of the intermediate region. The intermediate region includes first non-woven yarns C5 to C12. Each longitudinal end includes a reinforcing segment 102c including a three-dimensional weave of a first non-woven yarn and a second yarn of the reinforcing segment.

The utility model relates to a kind of slider connecting assembly in slider connecting technical field, including connecting block, rotating rod and swing rod, the rotating rod and the one end of the swing rod are respectively equipped with rotating block and pivot with the rotating cooperation of the connecting block, the both ends of the connecting block are respectively equipped with rotating groove and fixed block with the rotating block and the pivot cooperation, the other end of the rotating rod and the swing rod is equipped with fixed portion. The utility model makes rotating rod rotate and install in the one end of connecting block by the cooperation of rotating block and rotating groove. And by the cooperation of pivot and fixed block, swing rod swing installs in the other end of connecting block. Then, by fixed portion, rotating rod and swing rod are respectively firmly connected with slider or other components, so that connecting block, rotating rod and swing rod are mutually matched, multi-angle swing and rotation are realized, so as to improve the degree of freedom and adaptability of connecting assembly, realize complex motion demand, widen application scenario, meet diversified use demand.

The connecting rod (10), in particular of a turbine rotor, extends along an axial extension axis (X-X') and comprises a connecting rod body (11) including a threaded portion and a connecting rod head (12) rotatably integral with the connecting rod body (11) and including a connecting shank (13) including an external thread (13a) cooperating with the threaded portion of the connecting rod body (11), the connecting rod (10) further comprising a system (20) for locking the relative rotation between the connecting rod head (12) and the connecting rod body (11). The locking system (20) further comprises a self-locking nut (23) mounted by screwing on the connecting shank (13) of the connecting rod head (12) and configured to block the relative rotation between the connecting rod body (11) and the connecting rod head (12), the self-locking nut (23) comprising a deformable portion configured to be plastically deformed in a radial direction between an initial configuration, in which the deformable portion has a circular cross-section, and a deformed configuration, in which the deformable portion has a non-circular cross-section and tightens the external thread (13a) of the connecting shank (13).

Various implementations of a clevis may include a continuous fiber reinforced thermoplastic that may be least partially looped around a first opening in the clevis and a second opening in the clevis. Implementations of a clevis may include a stem and the continuous fiber reinforced thermoplastic may extend into the stem.

The invention relates to a double-walled tube (10) for conveying high-pressure fuel, comprising a first tube (402) forming a fluid flow channel (404) within the first tube and a second tube (406) arranged coaxially around the first tube, in which the double-walled tube (10) comprises at least two rings of the double-walled tube (10) around an axis and the double-walled tube (10) comprises a variable pitch.

The present invention relates to a fibrous preform 1 of a core part of a fibrous reinforcement for a composite material part, wherein the preform is formed by three-dimensional weaving of a first thread extending along the longitudinal direction and a second thread crossing the first thread. In the fibrous preform, the preform comprises two longitudinal ends 3a; 3b for articulation with other parts and an intermediate region ZM located between the two longitudinal ends. Each longitudinal end has a thickness greater than the thickness of the intermediate region, the intermediate region has a first volume ratio of the first thread to the second thread greater than 1, and each longitudinal end has a second volume ratio of the first thread to the second thread smaller than the first volume ratio and closer to 1 than this first volume ratio.

An assembly of a connecting rod and a crankshaft including a pair of crank webs 6 and a crank pin 5. A reservoir 21 for lubricating oil between a big end 10 of the conrod and the crank pin, and a jett

The utility model discloses an engine connecting rod convenient to disassemble and assemble, which belongs to the technical field of engine connecting rods and comprises a rod body and a connecting rod big end, the connecting rod big end is fixedly mounted at one end of the rod body, connecting rod covers are symmetrically mounted on two sides of the connecting rod big end, fixing cylinders are slidably mounted in the connecting rod covers, and fixing rods are fixedly mounted in the fixing cylinders. One end of the fixing rod is connected with a handle, telescopic sleeves are symmetrically arranged at the other end of the fixing rod, springs are arranged in the telescopic sleeves, and the other ends of the springs are connected with guide columns. According to the engine connecting rod convenient to disassemble and assemble, the disassembling time can be shortened, by rotating the handle, the fixing rod in the fixing barrel can stretch the spring and the telescopic sleeve to stretch out and draw back together, a positioning pin on the connecting rod cover is pulled out, rapid disassembling is achieved, and during assembling, the handle is rotated, the spring is stretched and aligned with a groove to be inserted, the spring pushes the telescopic sleeve to stretch out, and assembling is completed. The positioning pin is inserted, locking is achieved, and the rod body can be prevented from loosening under high-frequency vibration through locking combination of the spring and the positioning pin.

The invention relates to a tyre sealing and / or tyre inflating device (60) having a compressed-air compressor, and compressed-air compressor comprising a drive, in particular an electric motor (50), for driving a compressor device (20) of the compressor, wherein the compressor device (20) has a piston (26) guided in a cylinder (22) and a crank (30), wherein the crank (30) is coupled to a connecting rod (28) of the piston (26) via an eccentric bearing (38) and to the drive via a gear (48) and has a centric bearing (36), wherein a cylinder axis (34) passes through both the centric bearing (36) of the crank (30) and the eccentric bearing (38) of the crank (30) with the connecting rod (28), when a piston stroke of the piston (26) is at the bottom or top dead centre.