312 results about "Small head" patented technology

The invention discloses adjustable bobbin packaging equipment for wrap yarn processing, and relates to the technical field of wrap yarn processing, in particular to the adjustable bobbin packaging equipment for wrap yarn processing, which comprises a conveying mechanism, an adjusting mechanism is mounted at the top of the conveying mechanism, and a turnover mechanism is mounted at one end of the conveying mechanism. A packaging mechanism is installed at the bottom of the conveying mechanism, and a heat sealing mechanism is arranged at one end of the packaging mechanism. According to the adjustable bobbin packaging equipment for wrap yarn processing, the adjusting mechanism is arranged in the adjustable bobbin packaging equipment to adjust the position of a bobbin, the bobbin is prevented from deviating during packaging, the stability of wrap yarn processing and packaging is improved, and the clamping arms capable of being overturned and adjusted are arranged in the adjustable bobbin packaging equipment to adjust and clamp the large and small heads of the bobbin, so that the working efficiency is improved. And meanwhile, an inductive probe is arranged to induce the position of the bobbin, corresponding packaging operation can be conveniently conducted on all assemblies, manpower input is reduced, and the wrap yarn processing effect is improved.

A piston pin hole friction and wear test and torque measurement device in power machinery field, comprising a driving system, a torque measurement system, a loading system, a temperature control system, an oil supply system and a central controller. The driving system simulates the oscillation of the connecting rod. The loading system simulates the time-varying cylinder pressure load. The oil supply system and the oil channels of the connecting rod, bushing, and piston pin simulate the oil supply state. The torque measurement system comprises a total friction torque measurement device and a small head bushing hole friction torque measurement device, and measures the friction torque at the piston pin seat hole and the piston pin small head hole in real time. The temperature control system simulates the thermal load. The present application carries out tests based on actual components and realizes real-time measurement of friction torques.

The reciprocating piston type refrigerator compressor crankshaft comprises a crank, an operation groove is formed in the right side of the crank, a threaded sleeve is fixedly connected to the inner wall of the operation groove, a threaded rod is movably connected to the interior of the threaded sleeve through threads, and an adjusting handle is fixedly connected to the upper end of the threaded rod. The surface of the threaded rod is sleeved with a limiting mounting block, and the lower end of the threaded rod is movably connected with a rotating shaft. According to the utility model, the adjusting structure is additionally arranged, the adjusting handle is rotated by the wrench to control the threaded rod to drive the limiting mounting block to move longitudinally, and then the small end of the crankshaft and the piston part are driven by the limiting mounting block to move longitudinally; the crankshaft small head is attached to the limiting moving groove, so that the stability of the crankshaft small head can be greatly improved, the efficiency of the compressor can be optimized, the energy consumption can be reduced, and the compressor can be more flexibly suitable for various working conditions.

The embodiment of the invention relates to the technical field of new energy automobile part production, and discloses a cold header in-die knocking device which is composed of a first female die sleeve and a second female die sleeve, and a punching rod, a cavity position for containing a part and a marble B used for preventing the part from moving are arranged in the first female die sleeve; a cavity structure combined with an ejector pipe on the cold header is arranged in the second female die sleeve, and a sliding heavy punch is further arranged in the cavity and located on the left side of the ejector pipe. When the ejection pipe moves to the extreme position of the leftmost end, the left end face of the ejection pipe makes contact with the A plane of the second female die sleeve. A spring is arranged in the second female die sleeve, the two ends of the spring are connected with the sliding heavy punch and the left end face of the ejection pipe respectively, and the spring is arranged on a pipe of the sliding heavy punch in a sleeving mode. By means of the device, when some aluminum alloy parts in special shapes are produced on a cold header, a circle of pits are rapidly printed on the small end faces of the aluminum alloy parts and used for marking and recognizing the parts.

The invention relates to the technical field of incubator accessories, in particular to an egg containing mechanism and an intelligent incubator with the egg containing mechanism, the egg containing mechanism comprises an incubation tray and further comprises a connecting sleeve and a turning-around assembly, the connecting sleeve is rotationally arranged on the outer side of a positioning column in a sleeving mode, and the outer side face of the connecting sleeve is of a polygonal structure; each outer side face of the connecting sleeve is movably connected with two transversely-arranged sliding plates, and the two sliding plates are each rotationally connected with an egg support arranged in the length direction of the corresponding sliding plate. The turning-around assembly is arranged between the sliding plate and the egg supports and used for exchanging the inner side and the outer side of the upper egg support and the outer side of the lower egg support. The two clamping plates are arranged on the egg support to fix the two ends of the eggs, the turning-around assembly is arranged at the bottom of the egg support, when the egg support rotates, the second gear ring in the cover body is matched, so that the egg support drives the eggs to change the positions of large heads and small heads, the two ends of the eggs can be intermittently and uniformly heated, and the hatching rate of the eggs is increased.

The invention discloses a structural tower suitable for a large wind turbine generator, which comprises a steel tower drum, a switching node and a lattice tower, the lattice tower comprises a foot expanding section, a straight section and a variable angle section for connecting the foot expanding section and the straight section, the straight section is positioned above a blade tip, and the foot expanding section is positioned below the blade tip; a prestressed cable bundle channel is formed in the variable-angle section in the axial direction of the variable-angle section, a smooth inward-convex structure facing the steering side is formed in the position, where the prestressed cable bundle steers, of the prestressed cable bundle channel, and the cross section, at the smooth inward-convex structure, of the prestressed cable bundle channel is a bell-shaped hole with one large end and the other small end; the small end of the bell-shaped hole is an arc section with the diameter larger than that of the prestressed cable bundle, the small end of the bell-shaped hole faces the steering direction of the prestressed cable bundle, and the shape of the bell-shaped hole is gradually reduced from the two ends of the smooth inward-protruding structure to the center hole, so that the smooth inward-protruding structure is formed. According to the application, the prestressed cable bundle can be controlled and uniformly steered, and the prestress loss is reduced.

The invention relates to the technical field of pipe fitting machining, in particular to a pipe fitting machining surface spraying device and method. Comprising a base assembly, a shifting assembly installed on the base assembly, a spraying assembly installed at the output end of the shifting assembly, an outer dust removing assembly installed on the spraying assembly, a first-stage driving assembly installed on the base assembly and a steering assembly connected to the output end of the first-stage driving assembly. The first-stage driving assembly is installed on the steering assembly, the second-stage driving assembly is installed on the steering assembly, the alignment assembly is movably connected to the steering assembly, the first-stage driving assembly is used for driving the steering assembly to rotate according to a preset angle, and the second-stage driving assembly is used for driving the alignment assembly to rotate; the gas spring pipe fitting is fixed, meanwhile, the small head end is turned over, the arc-shaped outer wall and the plane outer wall of the small head end are sprayed in the two directions, two coatings are formed at the internal corner, and the combination degree of the coating and the pipe fitting is better.

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.

The utility model relates to the technical field of automobile engines, in particular to a light-weight automobile connecting rod which comprises a rod body, a connecting rod small end, a connecting rod large end and an installation assembly, and the installation assembly comprises an upper connecting plate, a lower connecting plate, a left frame, a right frame and a positioning piece. The upper connecting plate at the bottom of the rod body is combined with the lower connecting plate at the top of the large end of the connecting rod, meanwhile, the left frame and the right frame are installed on the two sides of the upper connecting plate and the lower connecting plate, the positions of the upper connecting plate and the lower connecting plate are further fixed, and workers can conveniently install the connecting rod into an engine; a worker can select and replace the connecting rod big end and the connecting rod small end according to the abrasion state of the connecting rod big end and the connecting rod small end, the situation that the whole connecting rod needs to be replaced during replacement is avoided, and therefore the problem that when an existing engine connecting rod and an automobile engine are damaged after being used for a long time, the whole needs to be replaced, and the use cost is increased is solved.

The utility model relates to the technical field of drilling guiders, in particular to a drilling guider for a small-end hole of a connecting rod. The drilling device comprises a base, a stand column is fixedly connected to the upper surface of the base, a motor is fixedly connected to the interior of the stand column, a drill bit is fixedly connected to the output end of the motor, an electric wire is fixedly connected to the interior of the motor, the other end of the electric wire is fixedly connected with the stand column, and a guide device is arranged at one end of the stand column. The guiding device comprises a sliding groove, the sliding groove is formed in the stand column, a sliding block is slidably connected to the interior of the sliding groove, a guiding plate is fixedly connected to one end of the sliding block, an opening groove is formed in the guiding plate, and a sliding rod is slidably connected to the interior of the opening groove. The problems that when a drill floor is used for drilling a to-be-machined connecting rod, the to-be-machined connecting rod cannot move up and down, the drilling depth of the to-be-machined connecting rod is limited, the production quality is affected, and therefore the production efficiency of a traditional drill floor is reduced are solved.

The utility model discloses an assembly type steel structure pool self-tightening type side column node structure which comprises wallboard units, a steel column and a rubber sealing gasket, each wallboard unit comprises a wallboard surface and a wallboard side column, the steel column is correspondingly arranged between the two wallboard units, the cross section of the steel column is a trapezoid section with one large end and one small end, and the rubber sealing gasket is arranged between the wallboard surface and the wallboard side column. The small end of the wallboard side column is arranged on the upstream side close to the pool, the side, close to the steel column, of the wallboard side column is an inclined face matched with the side face of the steel column, a rubber sealing gasket is arranged between the wallboard side column and the steel column, and the wallboard side column, the rubber sealing gasket and the steel column are fixedly connected through high-strength bolts and achieve abutted seam sealing. And the wallboard units and the steel columns are compacted and reinforced under the action of water pressure in the water pool. The wall plate side column node is simple in structure and ingenious in design, the steel column and the wall plate side column section are optimally designed, the reinforcing and sealing effects can be achieved by means of water pressure in a water pool, and the problem of hidden danger of water seepage of the side column node is effectively solved.

The vertical tank cone forming tool comprises a mounting platform, a suspension arm and a small end socket supporting mold, and the mounting platform is provided with a circular mounting channel; the lifting arm is connected with a lifting rope and used for lifting a cone to the mounting platform and enabling the lower portion of the cone to be located in the mounting channel, the position, close to the lifting rope, of the lifting arm is connected with a vertical telescopic element, and a telescopic shaft of the vertical telescopic element is located at the bottom; the small end socket supporting mold is located under the installation channel, a groove suitable for containing a small end socket is formed in the top of the small end socket supporting mold, and the bottom of the small end socket supporting mold is connected with an elastic telescopic mechanism. And when the vertical telescopic element downwards presses the small end socket on the small end socket supporting mold from the cavity of the cone, a vertical displacement space can be generated. According to the vertical tank cone forming tool, the mounting precision of the small end socket can be effectively ensured in the small end socket assembling process, the labor intensity is reduced, and the working efficiency is high.

The utility model discloses an asymmetric connecting rod and a mounting structure thereof, the asymmetric connecting rod comprises a rod body part, the rod body part is linear, two ends of the rod body part are provided with a large head part and a small head part, the middle part of the large head part is provided with a connecting rod large hole, and the middle part of the small head part is provided with a connecting rod small hole used for connecting a piston. The connecting line of the circle centers of the large connecting rod hole and the small connecting rod hole is parallel to the central axis of the rod body part, the horizontal distance between the connecting line and the central axis is not smaller than 1 mm, and a shaft sleeve used for being connected with a crankshaft is in interference fit with the interior of the large connecting rod hole; the utility model has the advantages of strong load capacity, good wear resistance and simple structure.

The invention relates to the technical field of automobile part processing equipment, discloses a small-head oil hole detection device for connecting rod production, and aims to solve the problem that a hole wall detection result of a small-head oil hole is affected due to the fact that a detection rod is affected by external impurities. Through the arrangement of the blocking mechanism, during use, the cylinder and the square cylinder are arranged on the two sides of the small-head oil hole, then the detection table extends into the small-head oil hole, the detection operation is completed by utilizing the axial contact between the detection rod on the detection table and the inner wall of the small-head oil hole, and in the process, the cylinder and the square cylinder are pressed on the two side faces of the small-head oil hole, so that the detection efficiency is improved. Through the actions, the amount of external impurities entering the small-head oil hole is reduced, so that the hole wall detection result of the small-head oil hole is not easily influenced.

The present application relates to the technical fields of one-way valve assembly, and discloses a valve body feeding mechanism for one-way valve assembly processing, which comprises a vibrating disc for conveying one-way valve bodies, one end of the one-way valve body being a large-head flange end and the other end being a small-head guide end, a clamping module being installed at the outlet of the vibrating disc, the clamping module having two output ends, after adopting a pre-pose optimization structure, the valve bodies can be corrected in pose and separated in advance, effectively reducing the workload of pose adjustment on the subsequent track, avoiding a large number of unqualified valve bodies from entering the subsequent process, at the same time, through the design of separation, the batch valve bodies are dispersedly conveyed, avoiding the delay of feeding caused by congestion, ensuring that the clamping module can continuously and stably obtain qualified valve bodies without waiting for replenishment, in addition, the valve bodies in vertical pose are selected in advance, greatly reducing the falling probability on the subsequent track, reducing repeated rework, improving the feeding efficiency, and laying a stable foundation for the subsequent assembly process of steel balls and springs.

The invention discloses a rotary dispensing valve, which belongs to the field of dispensing valves, and comprises a main valve body, a first air port, a second air port, a first limiting block, a second limiting block, a first rotating shaft, a bearing, a blade, a second rotating shaft, a glue inlet and a glue outlet piece, the first rotating shaft is connected with the second rotating shaft, the first rotating shaft is fixedly provided with the blade, and the second rotating shaft is connected with the bearing. A cavity is formed in the upper portion in the main valve body, the first limiting block, the second limiting block and the first rotating shaft divide the cavity into a first cavity and a second cavity, a gap allowing air to circulate in the first cavity and the second cavity is formed between the second limiting block and the inner wall of the main valve body, the first air port is communicated with the first cavity, and the second air port is communicated with the second cavity. The lower portion of the main valve body communicates with a glue inlet, the side wall of the second rotating shaft is provided with a glue inlet channel, and the lower portion of the second rotating shaft is provided with a glue outlet channel communicating with the glue inlet channel. Glue is switched between flowing and flowing stopping in a rotary shearing mode, and the problem of large and small heads can be perfectly solved.

The utility model provides a raking tooth machine chain link and steel bushing press mounting and dismounting tool which comprises a portable oil press, an oil press baffle and a raking tooth machine chain link fixing mechanism, the bottom of the portable oil press abuts against the oil press baffle, and the raking tooth machine chain link fixing mechanism is arranged at the front end of the portable oil press; the portable oil press comprises a steel sleeve dismounting device, and the steel sleeve dismounting device can dismount a steel sleeve from a raking tooth machine chain link or press the steel sleeve into the raking tooth machine chain link. The portable oil press structure is adopted, the steel sleeve in the raking tooth machine chain link can be mechanically taken out, manual replacement is avoided, time and labor are saved, the tool is simple in structure, convenient and fast to disassemble and assemble and convenient to carry, press-fitting and disassembly of the large-head steel sleeve and the small-head steel sleeve of the raking tooth machine chain link can be achieved at the same time, and the problem that the raking tooth machine chain steel sleeve is difficult to disassemble and assemble on a customer site is solved.

The present application relates to the field of water turbine processing technology, and discloses a kind of water pump upper crown inner ring and outer ring integral processing method, comprising the following steps: scribe line;Coarse lathe;Processing casting defects;4 process pressing plates are symmetrically welded on flow channel curved surface;Semi-finish lathe;Draw center cross line, draw each screw hole processing line;Finish lathe flow channel curved surface: clamp big head flange outer circle, dial gauge alignment has been processed inner circle, numerical control programming, semi-finish lathe, finish lathe small head end surface, flow channel curved surface, R fillet, step plane to drawing size, and according to drawing size position requirement, 0.20mm deep mark is engraved, and it is used for blade welding, and it is combined with crown flow channel template inspection;With processing inner hole as scribe line reference, draw impeller upper crown flow channel weld joint circle line;According to circle line, cut into upper crown inner ring and upper crown outer ring into two halves, so that the impeller upper crown flow channel processing size, form tolerance accuracy and roughness meet the requirements.

The utility model is suitable for the technical field of diesel engine parts, and provides a diesel engine connecting rod repair surfacing device which comprises a base, a welding assembly, a clamping assembly used for abutting against a connecting rod small end on a diesel engine connecting rod and a limiting assembly used for limiting a connecting rod large end on the diesel engine connecting rod. The clamping assembly comprises a mounting box, a chuck mounted on the mounting box and a guide part mounted at the axis of the chuck, a sliding groove is formed in the chuck, an abutting part is slidably arranged in the sliding groove, and the limiting assembly comprises a positioning part used for positioning the large end of the connecting rod and a limiting part arranged on one side of the positioning part. The limiting piece comprises a sliding rail and a limiting plate installed on the sliding rail in a sliding mode. The device solves the problems that the chuck is difficult to clamp the large head of the square diesel engine connecting rod and cannot ensure the positioning of the large head of the connecting rod, and achieves the effects of limiting and clamping the large head and the small head of the diesel engine connecting rod with different shapes and avoiding the influence of inaccurate positioning of the diesel engine connecting rod on the surfacing quality in the surfacing process.

The application discloses a posture adjusting device, relates to the field of adjusting devices, and comprises a transmission device and a mechanism.When a rotating shaft one drives a transmission belt to move and transport a to-be-tested connecting rod through the mechanism, a sensor detects a large head of the to-be-tested connecting rod, a rotating shaft two drives a baffle of the mechanism to be put down, then a gap between the baffles clamps a I-shaped rib of a body of the to-be-tested connecting rod, and a small head of the to-be-tested connecting rod is also limited in a certain range.When the to-be-tested connecting rod continues to pass, because the body of the to-be-tested connecting rod is clamped, the small head of the to-be-tested connecting rod moves to the middle, and the to-be-tested connecting rod with a skew posture is automatically adjusted to a flat posture.The posture skew problem of the to-be-tested connecting rod on a flow line is solved.

The application provides a reference-unified connecting rod machining process method. In the initial machining of the connecting rod, a process positioning hole is machined on the rod body and the rod cover end face, so that the process positioning hole penetrates the whole machining process of the connecting rod, the reference is unified from the front to the back of each process, the positioning error of each process is reduced, the machining precision of the part is improved, the positioning is accurate, convenient and fast, the positioning error is reduced, the machining precision is improved, the quality is guaranteed and the production efficiency is improved, the positioning reference is unified, the positioning error between each process is avoided, the precision requirement of the big head hole and the small head hole, the rod cover joint surface and the convex shoulder surface as the positioning reference is reduced, and the production cost is reduced.

The utility model relates to a connecting rod frame which is used for fixing a connecting rod, the connecting rod comprises a small end and a large end, the connecting rod frame comprises a main frame, and a lower limiting part and an upper limiting part which are arranged on the main frame; the lower limiting part abuts against the outer side wall of the small head end, and the upper limiting part abuts against the end face of the large head end so as to fix the connecting rod. The abutting position of the upper limiting part and the large head end is located above the side of the abutting position of the lower limiting part and the small head end, so that triangular support is formed between the connecting rod frame and the connecting rod, and the connecting rod fixing structure has the advantage that the connecting rod is stably fixed.

The invention relates to a quick assembly process for a valve seat of a plug valve. The quick assembly process comprises the following steps that the small head end of a guide sleeve is mounted at a flange of a valve body of the plug valve; when the plug valve is used, the valve seat is firstly arranged in the conical shaft hole of the guide sleeve from the upper part of the guide sleeve, then the valve seat is pressed into the guide sleeve by using the large end of the pressing block, and finally the valve seat is pressed into the inner cavity of the plug valve body by using the small end of the pressing block; the split supporting block assembly is firstly placed in the valve seat, then the wedge-shaped block is inserted into the wedge-shaped groove between the two split supporting blocks, and the wedge-shaped block is pressed downwards to enable the split supporting block assembly to open the valve seat. The taper plug is installed in the valve seat firstly, then the taper plug is pressed downwards through external force so that the taper plug can open the valve seat, and finally the taper plug is pulled out. The relative position accuracy of the valve seat and the valve body and the relative position accuracy of the valve seat and the pressing block are guaranteed, unsafe factors are reduced, the sealing performance of the valve seat can be guaranteed, and the assembling efficiency of the valve seat is effectively improved.

The utility model provides a cigarette packer strip package forming wheel dismounting tool for carrying out dismounting to strip package forming wheel end screw, and strip package forming wheel end has screw installation counterbore for screw head sinking, and the dismounting tool includes lengthened rod, force bar, lengthened rod includes lengthened rod body, and one end of lengthened rod body is equipped with the outer hexagonal head that is in line with the internal hexagon hole of screw head, and the other end of lengthened rod body is connected with the force bar perpendicular to lengthened rod body, and lengthened rod body is slidably sleeved with support ring, and support ring is step ring, and the small head end of support ring is towards the outer hexagonal head and is in line with the screw installation counterbore of strip package forming wheel end. The utility model has the advantages that compared with prior art: through support ring to lengthened rod whole course support, avoid strip package forming wheel to appear the situation of skidding when dismounting and installing, make the maintenance convenient and fast, save maintenance time.

The present application relates to the technical field of egg conveying, and discloses an egg conveying device, a plurality of egg-carrying assemblies; the plurality of egg-carrying assemblies are installed at intervals along a rotation direction between two chains; the egg-carrying assembly comprises two mounting blocks; the two mounting blocks are fixedly installed on corresponding chain links of the two chains respectively; the two mounting blocks are jointly rotationally connected with a mounting frame one and a mounting frame two; the mounting frame one and the mounting frame two are installed at intervals along the rotation direction of the chain; a plurality of pairs of egg claws are jointly installed on the mounting frame one and the mounting frame two; a pair of the two egg claws can be switched between a first state and a second state; in the first state, the pair of the two egg claws are arranged in a V shape pointing to the inner side of the rack, so that the surface-processed eggs fall between the two egg claws; in the second state, one end of the pair of the two egg claws pointing to the inner side of the rack is opened, forming a channel for the eggs to fall; the eggs can be adjusted from a horizontal posture to a vertical posture with the big head upward and the small head downward.

The utility model relates to the technical field of pipeline valves, and discloses a pipeline valve which comprises a valve body, a liquid inlet pipe is fixedly installed on one side of the valve body, and an irrigation pipe is detachably installed at the end, away from the valve body, of the liquid inlet pipe. According to the device, after the two fastening plates are fixedly connected to the outer portion of the irrigation pipe in a sleeving mode, the middles of the opening ends of the multiple installation holes and the middles of the multiple through holes are located on the same horizontal line, and then the small head ends of the fastening bolts are inserted into the installation holes till the small head ends of the fastening bolts penetrate through the through holes and extend to the position over the connecting ring; meanwhile, the large head end of the fastening bolt is attached to the bottom of the limiting block, then the fastening nut is connected with the small head end of the fastening bolt in a threaded fit mode, the attaching tightness degree of the top of the irrigation pipe and the bottom of the sealing ring is improved, and the situation that underground water leaks from the connecting position of the irrigation pipe and the sealing ring is prevented.

The utility model provides a symmetrical steel branch pipe spiral flow state elimination composite guide plate device, a spiral flow state elimination composite guide plate unit comprises four spiral flow state elimination composite guide plate subunits, and each spiral flow state elimination composite guide plate subunit comprises a composite guide plate and a plurality of parallel guide plates; the composite flow guide plate and the parallel flow guide plates are sequentially arranged in the direction from near to far away from the datum line; and moreover, the front ends of the composite flow guide plate and each parallel flow guide plate and the tail end of the crescent rib plate are kept on the same horizontal line vertical to the datum line. According to the device, the vortex eliminating effect of the guide plate in the pipe is utilized to cut the pressurized water flow in the incoming flow direction so as to eliminate vortexes in the pressurized water flow, so that the vortexes in the pressurized hydraulic pipeline are effectively eliminated or weakened on the basis of not changing the external structure of the branch pipe and not influencing the efficiency, and finally small head loss is contributed to the whole hydroelectric generation system; and the efficiency and the operation safety of the hydroelectric generation system are improved.

The utility model relates to the technical field of connecting rod press fitting, in particular to an assembling production line of a connecting rod press fitting assembly, which comprises a bushing press fitting machine, the surface of the bushing press fitting machine is provided with a limiting component for limiting a connecting rod, and the surface of the bushing press fitting machine is connected with a press fitting head driven by a hydraulic mechanism in a sliding manner. According to the connecting rod press-fitting assembly assembling production line, a press-fitting head descends, an abutting groove in the bottom is extruded above a small end of a connecting rod, at the moment, a lining is located over the connecting rod, then an air cylinder drives a pressing ring to move downwards, at the moment, air of an expansion air bag is released instantly, and the pressing ring rapidly pushes the expanded lining to the position above the connecting rod for press-fitting; and then the bushing quickly shrinks and is firmly pressed on the surface of the connecting rod under the deformation of the bushing, so that the connecting rod and the bushing can be effectively assembled, the assembly effect is good, the precision of a finished product is higher, and the bushing and the connecting rod cannot be damaged during pressing.

A kind of gauge for detecting connecting rod small head wedge bevel symmetry, for mechanical manufacturing field.The big base plate, small base plate is fixed on the two sides of base respectively, and the diamond pin that is adapted to the big head hole of connecting rod, the positioning mandrel that is adapted to the small head hole of connecting rod is fixed on the two sides of base, for fixing the anti-rotation pin direction of diamond pin is installed in base, and table block is placed in the side of connecting rod wedge bevel;The gauge further includes table frame and percentage indicating table;The inclination of the upper plane of base is consistent with the inclination of connecting rod wedge bevel.The utility model has the advantages of simple structure, easy to manufacture and detect and debug, and is convenient and fast for on-line detection of connecting rod wedge bevel symmetry, compared with the existing three-coordinate detection method, and its intuitive detection data is more convenient for cutter and fixture debugging during processing, quickly guides operator to adjust equipment, can effectively improve the detection efficiency of connecting rod wedge bevel symmetry, reduce the labor intensity of detection personnel, and reduce production cost.

The utility model discloses a high-strength crankshaft for a compressor, which relates to the field of compressors and comprises a crank, a spindle is arranged on one side of the crank, an insertion hole is formed in the center of one side of an inner cavity of the spindle, and an insertion column is arranged on one side of an inner cavity of the insertion hole. Through the elastic reset function of the fixing spring, the abutting column can be driven to move rightwards, when the abutting column moves rightwards, the clamping balls placed in the two arc-shaped containing grooves can be pushed into the arc-shaped clamping grooves from the two arc-shaped containing grooves and the through hole, and then the position of the small end of the crankshaft can be limited; therefore, the crankshaft small head and the crank can be firmly connected together in an anti-falling mode for use, the situation that connection of the crankshaft small head is not stable is avoided, the connection firmness of the crankshaft small head and the crank is improved to a certain degree, the crankshaft small head can be better matched with the crank for use, and the service life of the crankshaft small head is prolonged. And actual use is facilitated.