25results about "Crossheads" patented technology

A hybrid lubricating module includes a housing and an assembly which consists of at least two elements and has an axial hole run through by a shaft. At least one of the elements has one set of multiple notches on one end surface communicating with the axle hole. The housing has a through axial cavity to encase the assembly. The outer wall surface of the assembly and the inner wall surface of the housing are assembled to each other to form at least one storage chamber to store lubricating media. The multiple notches on at least one adjacent element form at least one set of fine flow passages communicating with the axial hole and the storage chamber.

The invention discloses a self-adaptive locking cross-shaped joint sliding block and pyramid sleeve, and relates to the technical field of cross-shaped joint sliding blocks and pyramid sleeves, the self-adaptive locking cross-shaped joint sliding block and pyramid sleeve comprises a cross-shaped sliding block, a conical sleeve, a storage box, a lubricating flow limiting assembly and an oil outlet control assembly, the conical sleeve is installed on the outer wall of the cross-shaped sliding block in a penetrating mode, and the storage box is installed on the inner wall of the cross-shaped sliding block; a lubricating flow limiting assembly is installed on the outer wall of the storage box in a penetrating mode. A first motor is installed to rotate to drive a collecting wheel to rotate, the collecting wheel rotates to drive a pull rope to move, the pull rope moves to drive an L-shaped supporting plate to move, the L-shaped supporting plate moves to drive a first spring to move, the first spring moves to enable the L-shaped supporting plate to drive a first pulley to move, and the first pulley moves to enable the L-shaped supporting plate to move away from an L-shaped sealing pad; at the moment, the pipeline is opened, so that the lubricating oil is discharged to the surface of the crosshead shoe through the oil outlet head, and the crosshead shoe is lubricated during movement, so that the functions of automatically lubricating the crosshead shoe, prolonging the service life of the crosshead shoe and improving the use stability are realized.

The high-precision piston rod connecting structure comprises a piston rod, the upper end of the piston rod is connected with a piston body, the lower end of the piston rod is connected with a crosshead, the upper end of the crosshead is connected with a positioning flange with a center hole, and the lower end of the piston rod is a reducing end transited through a conical surface section. The reducing end penetrates through the center hole of the positioning flange and is stretched and locked by a first fastening structure; the upper section of the center hole of the positioning flange is a taper hole matched with the conical surface section of the piston rod; the upper end of the piston rod penetrates into a center hole of the piston body, is stretched and locked by a second fastening structure and is provided with an anti-rotation structure. Automatic centering is achieved through conical surface matching, stable pre-tightening force is provided in cooperation with a double-fastening structure, the problems that a traditional connecting structure is insufficient in precision and poor in locking reliability are effectively solved, the operation precision and stability of a compressor are greatly improved, and meanwhile the compressor connecting structure has the advantages of being convenient to install and maintain and long in service life.

The application discloses a novel joint assembly which comprises a flange fork, a cross pack assembly and a welded fork, wherein the cross pack assembly comprises a cross shaft and four shaft head units, each of the shaft head units comprises a bearing bush which is sleeved on the shaft head of the cross shaft and connected with the fork head hole of the flange fork or the welded fork in an outer circle mode, and a small gap is arranged between the bearing bush and the shaft head of the cross shaft in a radial direction. The novel joint assembly can improve the diameter specification of the cross shaft neck, greatly improve the transmission capacity, ensure the reliable lubrication of the transmission part, delay the wear of the cross shaft and the bearing bush, improve the transmission stability, prolong the service life, and further discloses a cross shaft type universal coupling comprising the joint assembly.

The utility model relates to the technical field of cross shafts, in particular to a shaft sleeve type cross shaft which comprises a cross shaft body, a connecting rod connected with the cross shaft body, a shaft sleeve connected with one end of the connecting rod, a cavity arranged inside the cross shaft body, an oil bin arranged inside the cavity, an extrusion plate arranged inside the oil bin, a guide rod connected with the extrusion plate, and a pressing plate connected with the guide rod. A sponge column is arranged in the oil bin, a fixing ring is arranged outside the guide rod, pressure springs are symmetrically arranged at the top of the fixing ring, a lever is arranged at the bottom of the extrusion rod, a hinge seat, a cavity and a connecting rod are arranged at the position, close to the center, of the lever, a channel is formed in the connecting rod in a penetrating mode, a baffle is arranged at one end of the lever, and a limiting plate is arranged on one side face of the baffle. By means of the structure of the guide rod, the extrusion rod, the lever, the hinge seat, the channel, the baffle, the limiting plate and the compression spring, the problems that the lubricating effect is not uniform enough and grease cannot be supplemented due to different flowing paths and speeds of the grease are solved.

The utility model relates to a crosshead and crankshaft connecting rod mounting structure for a slurry pump. The crosshead and crankshaft connecting rod mounting structure comprises a crosshead, a connecting head is formed at the left end of the crankshaft connecting rod; the connecting shaft comprises a front shaft body, a middle shaft body and a rear shaft body, the front shaft body is matched with the front pin hole, the rear shaft body is matched with the rear pin hole, the large-diameter end of the front shaft body is connected with the front end of the middle shaft body, and the rear end of the middle shaft body is connected with the small-diameter end of the rear shaft body; and the baffle is connected to the rear end of the crosshead, and the baffle limits the connecting shaft in the pin hole. The radial gap between the connecting shaft and the crosshead is reduced, abrasion between the connecting shaft and the crosshead is reduced, the installation precision is high, installation is rapid, the stability between the crosshead and the crankshaft connecting rod is improved, and the service life of the whole slurry pump is prolonged.

A pump power end includes an assembly comprising a crosshead, a connecting rod, and a joint. The joint may include a knuckle and a keeper. The connecting rod may include a forked end comprising two tines with a gap in the middle. The knuckle of the joint may be fixedly coupled to both tines. The crosshead may include a socket within which the knuckle of the joint is rotatably received. The keeper of the joint may include a body with a recess aligned with the socket to form a cavity within which the knuckle is disposed. The body of the keeper may be coupled to the crosshead and reside in the gap in the forked end of the connecting rod to retain the knuckle.

The utility model provides a vehicle differential spider which comprises a spider body, an extending shaft rod and a pressing oil outlet assembly, the spider body comprises a disc body and a plurality of shaft necks, the shaft necks are evenly distributed on the disc body, one end of the extending shaft rod is movably arranged in a containing groove formed in the shaft necks, and the extending shaft rod moves in the containing groove, so that the oil outlet assembly can be pressed on the spider body. The extension shaft rod is provided with a through groove, the pressing oil outlet assembly is provided with an extrusion part, the extrusion part is movably arranged in the through groove, and the shaft neck is provided with a liquid outlet hole communicated with the containing groove. According to the universal joint pin, oil liquid is extruded through the extrusion component, the oil liquid can overflow from the liquid outlet hole, so that the outer portion of the shaft neck is lubricated, the overall length of the shaft neck can be changed through cooperation of the extension shaft rod, and the problem that the universality is limited due to the fact that the size of an existing universal joint pin is fixed is solved.

A linear drive assembly configured for use within a power end assembly. The linear drive assembly is configured to interconnect a crankshaft and a pony rod and comprises a crosshead assembly attached to a connecting rod assembly. In one or more embodiments disclosed herein, the connecting rod assembly is configured to attach to opposite sides of the crosshead assembly so that no portion of the connecting rod assembly is disposed within an interior of a crosshead included in the crosshead assembly.

The invention relates to a novel differential spider, which relates to the field of automobile parts, is mainly used for supporting a planetary gear, transmitting torque and realizing differential rotation of left and right wheels, and comprises a workpiece which comprises a main body part and a plurality of arc bosses, and the arc bosses are arranged on the main body part at intervals along the circumferential direction; the positioning tool comprises a plurality of V-shaped grooves, the V-shaped grooves are formed in the positioning tool at intervals in the circumferential direction, and the arc bosses abut against the corresponding V-shaped grooves for positioning; the V-shaped groove extrudes the arc boss, so that the positioning tool has a positioning effect on the workpiece, huge torque and vibration generated in the machining process can be effectively resisted, the workpiece is firmly fixed, and the core problems that the workpiece is prone to slipping and positioning is not firm due to insufficient meshing force are solved.

The utility model provides a wear-resistant differential spider. The wear-resistant differential spider comprises a spider body, the four rotating joints are rotationally arranged at the four end parts of the cross shaft body respectively; a sealing cover plate is embedded in the center of the top face of the cross shaft body, an assembling groove corresponding to the sealing cover plate is formed in the middle of the cross shaft body, a check valve with an exhaust switch is assembled in the assembling groove, a sliding assisting structure is arranged between the cross shaft body and the rotating connector, friction force is reduced, meanwhile, the cross shaft body is effectively prevented from being abraded, and the service life of the cross shaft is prolonged. A worker can input gas through a check valve with an exhaust switch, the gas enters an inflation cavity through a gas flow pipeline, an elastic positioning ring deforms under the action of gas pressure, the contact acting force of a rolling steel ball and an annular sliding assisting groove is improved, and therefore the rotation stability of the rotating connector is adjusted; exhaust and pressure reduction can be performed through an exhaust switch on the check valve, and the operation is simple.

The invention relates to the technical field of transmission systems, in particular to a differential assembly structure which comprises a shell, a cross shaft body and a locking assembly, and a cross shaft mounting hole is formed in the side portion of the shell in a penetrating mode; the cross shaft body is of a split type structure and comprises a long shaft and two short shafts, and the long shaft and the short shafts are installed in the shell through the cross shaft installation holes and pressed and fixed to the shell through the locking assemblies to form an integrated cross shaft structure. After the locking assembly is unlocked, the long shaft or any short shaft can be independently pulled out of the cross shaft mounting hole in the axial direction of the long shaft or any short shaft. A traditional non-detachable integral type universal joint pin is improved into a split type universal joint pin structure capable of being independently detached, so that when the universal joint pin breaks down, independent replacement and maintenance of a long shaft or a short shaft can be achieved without detaching a left shell and a right shell of the differential mechanism, convenience and efficiency of maintenance operation are remarkably improved, and the service life of the differential mechanism is prolonged. The problem that an existing differential assembly structure is low in maintenance efficiency is solved.

The utility model relates to the technical field of connection of piston rods and crossheads, and particularly discloses a connection structure of a piston rod and a crosshead body, which comprises a crosshead body, a piston rod body is arranged at the upper end of the crosshead body, a positioning bolt is fixedly connected to the lower surface of the piston rod body, a groove is arranged on the upper surface of the crosshead body, and the positioning bolt is fixedly connected with the positioning bolt. And a limiting clamping block is mounted on the inner wall of the groove of the crosshead body. According to the connecting structure of the piston rod and the crosshead body, the extrusion clamping block and the first locking block are arranged, the crosshead body and the piston rod body are fixed through the positioning bolt, and meanwhile the positioning bolt and the limiting clamping block are fixed in a threaded mode, so that the piston rod body drives the extrusion clamping block to be clamped into an annular groove in the upper surface of the limiting clamping block; and a linkage sliding block is conveniently pushed by extruding a clamping block, then the linkage sliding block drives a first locking block to horizontally slide, the first locking block is clamped in a first limiting groove so as to fix a limiting clamping block and the crosshead body, and the stability of the device is improved.

A linear drive assembly configured for use within a power end assembly. The linear drive assembly is configured to interconnect a crankshaft and a pony rod and comprises a crosshead assembly attached to a connecting rod assembly. In one or more embodiments disclosed herein, the connecting rod assembly is configured to attach to opposite sides of the crosshead assembly so that no portion of the connecting rod assembly is disposed within an interior of a crosshead included in the crosshead assembly.

The invention relates to a differential planetary gear shaft, a cross shaft and a planetary gear differential mechanism. The differential planetary gear shaft comprises a shaft body, a mounting groove is formed in the outer wall of the shaft body, the mounting groove extends by a circle in the circumferential direction of the shaft body, the shaft body is sleeved with a bearing, the bearing is embedded in the mounting groove, and the shaft body is suitable for being connected with a planetary gear through the bearing. According to the differential mechanism, the mounting grooves are formed in the shaft body, the bearings are mounted in the mounting grooves, when the planetary gears are mounted on the shaft body, rotating connection is formed between the bearings, friction force is converted into rolling friction through the bearings, and therefore the friction force is effectively reduced, and the running resistance of the differential mechanism is reduced; and the axial positioning of the bearing and the planetary gear is realized.

The utility model relates to the technical field of petroleum and natural gas drilling equipment and engineering, and particularly discloses a reinforced connecting rod crosshead structure for a fracturing pump, which comprises a connecting rod, a crosshead, a connecting rod pin and a connecting rod seat, the connecting rod small head is fixedly connected with the connecting rod pin through a fastener, a cavity is formed between the connecting rod small head and the connecting rod pin, a positioning pin is arranged in the cavity, the connecting rod small head is in an arc shape, a lining is fixedly arranged in the crosshead, the lining is arranged on the outer side of the connecting rod pin in a sleeving mode, and the connecting rod pin can rotate relative to the lining. The connecting rod pin replaces a traditional connecting rod small head to rotate in the crosshead so as to bear the pressure of the plunger, the connecting rod pin and the connecting rod pin bush have a larger contact area, and therefore the contact pressure is reduced, the connecting rod small head is in an arc shape, the machining requirement for high coaxiality does not exist, and the machining difficulty and the machining cost are reduced.

The utility model discloses a crosshead structure and a fracturing pump, and relates to the field of oil and gas equipment. A crosshead structure of a fracturing pump comprises a crosshead main body, the crosshead main body comprises a first arc, a second arc, a third arc and a fourth arc, and the first arc, the second arc, the third arc and the fourth arc are sequentially arranged in the circumferential direction of the crosshead structure and define a multi-arc profile of the crosshead main body in the radial direction; the circle center of the first arc and the circle center of the third arc coincide at a first point, the distance from the first point to each point on the first arc is a first distance, the minimum distance from the first point to each point on the second arc is a second distance, and the distance from the first point to each point on the third arc is a third distance; the minimum distance from the first point to each point on the fourth arc is a fourth distance; the first distance is larger than the third distance, and the second distance is equal to the fourth distance and smaller than the third distance. The problem that the contact area of the crosshead and the sliding sleeve is prone to ablation can be solved.

The invention discloses a heavy-duty car differential planet wheel set without a copper bush and a preparation method, the heavy-duty car differential planet wheel set without the copper bush comprises a cross shaft and a planet wheel, the cross shaft is in interference fit with an inner hole of the planet wheel, a spiral micro-oil groove is formed in the surface of the inner hole of the planet wheel, lubricating grease is arranged in the spiral micro-oil groove, and a step plating layer is arranged on the surface of the cross shaft. The manufacturing method comprises the following steps: S1, preparing the stepped plating layer of the cross shaft; s2, planet wheel inner hole machining; and S3, assembling the assembly. After the use of a copper sleeve is reduced, the use cost is reduced, the risk of heavy metal pollution is also reduced, the continuous oil supply capacity of the spiral micro-oil groove enables the thickness of a lubricating film to be stable, lubrication failure caused by local high temperature is avoided, the wear resistance of the cross shaft is improved through a stepped plating layer on the cross shaft, the stability of the device in the working process is guaranteed, and the service life of the device is prolonged. And the service life of the cross shaft is prolonged.

An internal combustion engine has a uniblock that defines a blind cylinder bore that terminates within the uniblock. A piston is inserted into the cylinder bore from a bottom end of the cylinder bore. Parallel first and second vertical planes extend along first and second lateral sides of the cylinder bore. A cylinder zone being defined between the first and second vertical planes. A crosshead is coupled to the piston. A first crankshaft has a first crankshaft axis that extends parallel to the first vertical plane and that is positioned outside of the cylinder zone. A second crankshaft has a second crankshaft axis that extends parallel to the second vertical plane and that is positioned outside of the cylinder zone. The first crankshaft is coupled to the crosshead with a first connecting rod and the second crankshaft is coupled to the crosshead with a second connecting rod.

The invention belongs to the technical field of nuclear power, and particularly relates to a shielding device and method for a high-dose-rate small pipeline. According to the shielding device for the high-dose-rate small pipeline, the spatial position of the transverse pipe can be flexibly adjusted according to the trend and arrangement of the small pipeline through the detachable structure of the stand column, the transverse pipe and the connecting assembly, and the shielding requirements of various high-dose-rate pipelines, pipelines with different diameters and pipelines with different layouts are met; therefore, various complex pipeline arrangement scenes are adapted, and the requirement that small pipelines cannot directly bear shielding materials is met; after the device is installed, the corresponding layers of flexible shielding materials are wound, so that the high-dose-rate small pipeline can be effectively shielded, and meanwhile, the problem of ray leakage is avoided.

The invention discloses a crosshead and connecting rod connecting assembly which comprises a crosshead and a connecting rod, and the crosshead and the connecting rod are integrally formed. The crosshead and the connecting rod are designed to be of an integrated structure, the problem that in the prior art, when the crosshead and the connecting rod are connected in a separated mode, the crosshead and the connecting rod are not concentric due to a fit clearance is effectively solved, abrasion of a connecting rod sealing piece and a plunger packing sealing piece is remarkably reduced, and the service life of the device is prolonged. And through the integrated structural design, the crosshead and the connecting rod are connected without using a pressing ring and a fastener, so that the connecting structure is simplified, and the production cost is reduced.

The present application relates to the technical field of cross shaft, in particular to a cross shaft assembly, dismounting method and assembling method. The cross shaft assembly comprises a cross shaft unit and a sensing packaging unit. The cross shaft unit comprises a shaft body and four cross shaft necks which are integrally formed around the shaft body. The shaft body has a first mounting groove and a second mounting groove on one side. The first mounting groove has a large diameter and a small depth. The second mounting groove is opened in the first mounting groove. The inner wall of the second mounting groove has a snap ring groove. The inner wall of the first mounting groove is a forged blank surface. The sensing packaging unit comprises a sensor module, a shell module and the like. The first shell and the second shell of the shell module are fixed by locking screws to form a cavity for accommodating the sensor module. The clamping plate of the second shell is located in the second mounting groove, and the clamping strip is located in the snap ring groove. The first mounting groove is located at the first shell and the second shell. The second shell has a spacing with the groove wall. The first sealing ring is sleeved on the outside of the second shell and is pressed in the first mounting groove by the locking screw. Thus, the problem that the early warning sensor is easily loosened when installed on the cross shaft is solved.

The application discloses a reciprocating pump with an anti-vibration and wear-resistant crosshead bushing structure and a machining device, relates to the technical field of reciprocating pumps, and comprises a machine box, a crankshaft is arranged on one side in the machine box, a plurality of connecting rods are arranged on the surface of the crankshaft, the connecting rods are rotatably provided with inlaid crossheads through bolts, the inlaid crossheads are slidably arranged in novel bushings, piston rods are fixedly arranged on one side of the inlaid crossheads, a plurality of spiral semicircular oil grooves are formed in the inner wall of the novel bushings, bosses are symmetrically and fixedly arranged at both ends of the novel bushings, and the inlaid crossheads are symmetrically arranged in a plane shape on both sides; through the novel bushing, the lubrication between the novel bushing and the inlaid crosshead is more sufficient, the wear amount is smaller, and the service life is prolonged; through the inlaid crosshead, oil gas can flow freely from both sides without obstruction, and the phenomenon that the oil gas is blocked is avoided, so that the motion resistance is reduced, and the mechanical efficiency of the whole reciprocating pump is improved.

An internal combustion engine has a uniblock that defines a blind cylinder bore that terminates within the uniblock. A piston is inserted into the cylinder bore from a bottom end of the cylinder bore. Parallel first and second vertical planes extend along first and second lateral sides of the cylinder bore. A cylinder zone being defined between the first and second vertical planes. A crosshead is coupled to the piston. A first crankshaft has a first crankshaft axis that extends parallel to the first vertical plane and that is positioned outside of the cylinder zone. A second crankshaft has a second crankshaft axis that extends parallel to the second vertical plane and that is positioned outside of the cylinder zone. The first crankshaft is coupled to the crosshead with a first connecting rod and the second crankshaft is coupled to the crosshead with a second connecting rod.

The invention relates to the technical field of cross shafts, in particular to a cross shaft assembly, a disassembling method and an assembling method. The cross shaft assembly comprises a cross shaft unit and a sensing packaging unit. Each cross shaft unit comprises a shaft body and four cross shaft necks which are distributed around the shaft body and are integrally formed; one side of the shaft body is provided with a first mounting groove and a second mounting groove, the first groove is large in diameter and small in depth, the second groove is opened in the first groove, the inner peripheral wall is provided with a snap ring groove, and the inner wall of the first groove is a forged blank surface. The sensing packaging unit comprises a sensor module, a shell module and the like; a first shell and a second shell of the shell module are fixed through locking screws to form a cavity for accommodating the sensor module; the clamping plate of the second shell is located in the second mounting groove, and the clamping strip is located in the clamping ring groove; the first shell and the second shell are provided with first mounting grooves, and the second shell is spaced from the groove walls; and the first sealing ring sleeves the outer side of the second shell and is pressed in the first mounting groove by the locking screw. Therefore, the problem that the early warning sensor is easy to loosen when being mounted on the cross shaft is solved.