291results about "Connecting rods" patented technology

A connecting rod assembly includes a crosshead for coupling a connecting rod to a plunger, the crosshead having a hole extending through the crosshead. The connecting rod assembly also includes a knuckle cage positioned within the crosshead, the knuckle cage extending through the hole and including a cutout to provide access to a passage formed in the knuckle cage. The connecting rod assembly further includes a knuckle positioned within the passage of the knuckle cage, the knuckle having a mounting surface that is substantially planar, the mounting surface coupling to the connecting rod at a mating end with a substantially planar mating end surface.

The invention discloses a composite material connecting rod structure, and relates to the technical field of composite material structure design and manufacturing, in particular to a light high-strength composite material connecting rod which comprises a composite material rod body, a flange connector, a flange clamp, an adjustable clamp and a tensile bolt set. The composite material rod body is made of fiber reinforced resin matrix composites through a winding or laying winding process, and reinforcing areas and transition oblique angles are arranged at the two ends of the composite material rod body. The adjustable clamp and the flange clamp are in interference fit with the end of the rod body through built-in inclination and surface texture, the flange connector is connected with the clamp through the tensile bolt set, and efficient transmission of tension and compression loads is achieved. Through the integrated combined structural design, the problems of stress concentration and interface failure caused by traditional glue joint or screw joint are solved, the bearing capacity, environmental adaptability and reliability of the connecting rod are remarkably improved, and the connecting rod is suitable for the high-load fields such as aerospace, high-speed rails and heavy machinery.

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 relates to a crankshaft for an internal combustion engine. In particular, the invention relates to a crankshaft having at least one crankshaft segment, comprising at least one disk-shaped crank web, arranged with rotation symmetry relative to a crankshaft axis and carrying a main bearing surface that rotates around a crankshaft axis, and a crank pin that is arranged eccentric to the crankshaft axis and extends parallel to the crankshaft axis.

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 invention relates to a control arm (1) having a frame (10), at least one interface (2, 3) arranged on the frame (10), and a ball-and-socket joint (4) arranged on the frame (10). The ball-and-socket joint (4) comprises an insert (8) of an elastic plastic material, which is glued in or on a complementary socket of the frame (10). A ball portion (5a) of a ball-and-socket joint pin (5) is arranged rotatably in the insert (8). A plastic material coating (6) is arranged on the ball portion (5a), and a metal coating (7) is arranged on the plastic material coating (6) in such a way that it comes into contact with the inner surface of the insert (8). The invention also relates to a method for producing the control arm (1).

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 rotating wheel connecting rod mechanism which comprises a first connecting ring, a second connecting ring, a first connecting rod and a second connecting rod, one end of the first connecting rod is fixedly connected with the outer side face of the first connecting ring, and one end of the second connecting rod is fixedly connected with the outer side face of the second connecting ring. The right side face of the other end of the first connecting rod is fixedly connected with the left side face of the other end of the second connecting rod, the first connecting ring and the second connecting ring are each provided with an inner retaining ring and a gland, and the lower ends of the inner retaining rings penetrate through the upper end faces of the first connecting ring and the second connecting ring and then are arranged in the first connecting ring and the second connecting ring. The outer side face of the inner retaining ring makes contact with the inner wall of the first connecting ring and the inner wall of the second connecting ring, the upper end face in the gland makes contact with the upper end face of the inner retaining ring, and the gland is in threaded connection with the outer side face of the first connecting ring and the outer side face of the second connecting ring. The beneficial effects of the utility model are that: it is better to dismantle and not easy to break.

A connecting rod (4) for a vehicle is disclosed. The connecting rod comprises a small end, a big end (10), and a shank (12) extending from the small end to the big end. The big end comprises a base part (14) located adjacent to the shank, and a cap part (16) connectable to the base part. In an assembled state, the base part and the cap part together define an inner circular surface (20), which defines a central opening which is configured to receive and house two bearing shells (6) for contacting said inner circular surface. The base part is provided with a first groove (22) and the cap part is provided with a second groove (24), wherein in said assembled state, the first groove and the second groove together form a through hole extending from an external surface (26) of the big end to said inner circular surface.

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.

The utility model provides an engine connecting rod assembly, which relates to the technical field of engine connecting rods and comprises a connecting rod main body, a connecting rod cover is spliced at the large end of the connecting rod main body, protective sleeves are arranged on the inner side wall of the connecting rod cover and the inner side wall of the large end of the connecting rod main body, and a pressing rod is clamped on one side of the connecting rod main body. One end of the pressing rod is fixedly connected with a semi-arc plate, and one side of the semi-arc plate is in lap joint with one side of the protective sleeve; according to the connecting rod, the protective sleeve used for protecting the connecting part is arranged on the inner side wall of the connecting rod cover, the protective sleeve not only can slow down the abrasion speed of the connecting rod main body, but also can prevent impurities from entering the connecting part and plays a role in protecting the connecting part, and when the connecting rod is used, the position of the protective sleeve is determined by the two semi-arc plates; and when the protective sleeve needs to be replaced subsequently, the two semi-arc plates can be released to release the protective sleeve, so that the protective sleeve can be conveniently and quickly replaced.

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).

The utility model relates to the technical field of engine connecting rods, and discloses a wear-resistant engine connecting rod which comprises a rod body, a connecting rod big end and a connecting rod small end, a connecting rod cover is detachably connected to the side, away from the rod body, of the connecting rod big end, and connecting blocks are fixedly connected to the two ends of the inner side wall of the connecting rod big end and the two ends of the inner side wall of the connecting rod cover. Clamping grooves are formed in the inner sides of the connecting blocks, nesting holes are formed in the center positions of inner cavities of the clamping grooves, and threaded connecting holes are formed in the center positions of inner cavities of the nesting holes; the tight connection effect between the wear-resistant tile shaft and the connecting rod big end and between the wear-resistant tile shaft and the connecting cover is achieved by arranging the clamping structure, the phenomenon that the wear-resistant tile shaft is loosened or falls off due to abrasion is avoided, the wear resistance in use is ensured, and the service life of the connecting rod is prolonged.

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.

Chassis component for a vehicle with a hollow base body (2, 28), wherein at least one axial end section (12) of the base body (2, 28) is closed by means of a forming process, and with at least one joint housing (3) made of plastic, wherein the joint housing (3) is injection-molded and / or cast onto the end section (12) of the base body (2, 28), and an outer surface (17) of the end section (12) has several protrusions (18, 20) and recesses (19, 21) due to the forming process for closing the base body (2, 28), wherein a positive fit with the plastic of the joint housing (3) is formed by means of the protrusions (18, 20) and recesses (19, 21), characterized in that the hollow base body (2, 28) is made of metal and the end section (12) has several or at least three web-like folds (22) extending circumferentially of the base body (2, 28) are distributed and extend parallel and / or radially to the central longitudinal axis (5).

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 utility model relates to the technical field of mechanical transmission, and provides a connecting rod transmission mechanism and a mirror image engine. The connecting rod transmission mechanism comprises a power sliding block, a power connecting rod and two power pistons, the power connecting rod comprises a connecting rod base body and two linear rod parts, the linear rod parts extend in the first direction, the front end of each linear rod part is connected with one power piston, and the rear end of each linear rod part is fixedly connected with the connecting rod base body; the two linear rod parts are located on the two opposite sides of the connecting rod base body in the first direction, and the power sliding block is installed on the connecting rod base body in a sliding mode in the second direction. The linear rod part does not need to contain a bearing, rotation motion does not exist, the overall cross section is uniform or roughly uniform, standard sinusoidal motion / cosine motion is met, the size reduction design of the linear rod part and the air cylinder is facilitated, the compression ratio in the air cylinder is increased, the combustion efficiency is improved, the overall structure of the engine is more compact, and the needed engine cabin space is reduced. And the power-to-weight ratio and the acceleration performance of the vehicle can be improved.

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

Provided is a fiber-reinforced resin cylinder which can prevent the insertion of resin residues and improve the workability of core removal. The fiber-reinforced resin cylinder (2) is provided with a fiber-reinforced resin cylinder member (40) and a metal cylinder member (50), the metal cylinder member (50) is fixed to the inner peripheral surface of an axial end portion (40b) of the fiber-reinforced resin cylinder member (40), and the inner diameter (D51) of the metal cylinder member (50) is larger than the inner diameter (D41) of the fiber-reinforced resin cylinder member (40).

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.