64results about How to "Reduce fit accuracy" patented technology

An improved golf club fitting system for fitting a set of golf clubs to a player includes the steps of measuring a player's hand grip strength and selecting a representative golf club having a dead weight directly proportional to the player's grip strength. The club length and the swing weight of the representative golf club are then determined by standard testing procedures commonly used in the golf club industry. A balance index (BI) for the representative golf club is then computed by dividing the dead weight (DW) by the swing weight (SW) (DW/SW=BI) and the balance index (BI) is compared to the dead weight to determine generally corresponding values for the remaining other golf clubs in the set such that the system user can match different irons and woods to the representative golf club thereby creating an ideal matched set of golf clubs for the player.

The invention relates to a rotary valve type large torque hydraulic corner self-servo valve, which has the technical scheme that: a valve body (10) is concentrically arranged in a cylinder body cylindrical cavity (18); a valve sleeve (8) is concentrically arranged in a valve body cylindrical cavity (27); a right end of a valve plug (9) penetrates through the valve sleeve (8) so as to be concentrically arranged in the valve body cylindrical cavity (27); and an output shaft of a motor (3) is in key joint with an inner hole (46) on a left end of the valve plug (9) concentrically. Fixed stops (7) are respectively arranged on an upper part and a lower part of an inner wall of a cylinder body (4), and are in movable fit with the valve body (10); two blades (17) are fixed on an outer wall of the valve body cylindrical cavity (27), are arranged at an angle of 180 degrees, and are in movable fit with the cylinder body (4); and the fixed stops (7) and the blades (17) are in staggered arrangement with the blades (17). The rotary valve type large torque hydraulic corner self-servo valve has the characteristics of simple structure, easiness in processing, balance in stressing of the valve plug, large output torque, good dynamic property, flow gain linear, quick respond speed, and high control accuracy.

The invention discloses a centrifugation electric vibration table system. The centrifugation electric vibration table system comprises a centrifuge, an electric vibration table, a power amplifier, a vibration control instrument, a cooling apparatus, a centering apparatus and an acceleration transducer, wherein a vibration table body is arranged at the tail end of an arm of the centrifuge, the power amplifier, the vibration control instrument, the cooling apparatus and the centering apparatus are arranged around the rotation center of the centrifuge and realize equipment communication with a master control chamber through a slip ring system, the acceleration transducer is arranged on the electric vibration table, and a closed-loop control circuit formed by the vibration control instrument, the power amplifier, the vibration table body, the acceleration transducer and the vibration control instrument does not pass through the slip ring system. The centrifugation electric vibration table system is safe and reliable, centrifugal forces applied to the power amplifier, the cooling apparatus and a control cabinet are the smallest, the maintenance and the debugging are convenient, and the requirement for application of the electric vibration table system on the centrifuge can be satisfied.

The invention relates to an automatic bottle clamping, placing and discharging device for a visible foreign matter detector. The device comprises a base, a mounting seat, a mechanical arm, a door opening and closing device, a bottle discharging device and a translation device, wherein the mounting seat is fixed with the translation device; the translation device is fixed on the base; and the mechanical arm, the door opening and closing device and the bottle discharging device are connected with the mounting seat. The device is reasonable in structural design, the mechanical arm can automatically translate, clamp and place a liquor bottle, and the liquor bottle is reliably and stably clamped and loosened; the door opening and closing device automatically opens or closes the door of a bottle falling groove and is matched with the bottle discharging device to push the liquor bottle in a bottle discharging box from the bottle falling groove; and the mechanical arm, the door opening and closing device and the bottle discharging device are synchronously controlled to translate by the translation device in the whole process, bottle taking, falling and discharging are integrated, and full-automatic control is realized.

The invention discloses a pushing-needle type anti-theft nut developed on the basis of a rolling needle type anti-theft bolt, which is an anti-theft nut with excellent anti-theft performance and can also be used as an anti-theft nut with an anti-theft function. The pushing-needle type anti-theft nut comprises a nut body and a pushing needle, wherein the pushing needle is extruded into a groove for one-way braking in an installation process, thus the sensitivity of the anti-theft function and anti-dismounting moment are improved and anti-theft effect is ensured. The pushing-needle type anti-theft nut can be combined with a nut with an anti-theft appearance to form a secondary anti-theft nut. The pushing-needle type anti-theft nut has the advantages of being reliable in the anti-theft function, reasonably reducing matching precision of manufacture and installation, eliminating tolerance clearance and increasing the anti-dismounting torque, and is suitable for batch production and wide application.

The invention discloses a picture frame structure of a heavy-calibre combined lens, which comprises a picture frame, a space ring, a gasket and a threaded ring, wherein regulating screw structures are additionally arranged on the picture frame. According to the invention, by using the symmetric regulating screw structures, the position of one lens in the combined lens is regulated, the processing requirement of center deviation of an optical element and the matching precision of a mechanical member are reduced, an optical system is more conveniently debugged, and an ideal imaging quality is reached. The picture frame structure can be widely applied to optical system debugging, system imaging and system detection of a heavy-calibre imaging system in optical engineering and optical experimental devices, and has strong practicability.

The invention provides an axial double-floating structure of a scroll compressor. The scroll compressor adopts a static-scroll axial floating structure or a movable-scroll axial floating structure, wherein sealing grooves are simultaneously formed at tooth tips of a movable scroll and a static scroll; sealing rings are put into the sealing grooves; the tooth tips and tooth bottoms of the movable scroll are respectively in clearance fit with tooth bottoms and the tooth tips of the static scroll; and clearances are larger than the elongation amount of teeth of the scrolls, which is caused due to thermal expansion, and smaller than fit clearances between the tooth tips and the tooth bottoms of the static and the movable scrolls of a compressor which does not float and adopts tooth tip sealing ring structures of the movable and the static scrolls. Compared with the prior art, the axial double-floating structure has the advantages that leakage at the tooth tips and the tooth bottoms of the movable and the static scrolls can be effectively reduced, the tooth height fitting accuracy of the movable and the static scrolls can be further lowered, and the processing economy of the scrolls is improved.

The present invention discloses an engine piston rod measuring tool. The engine piston rod measuring tool comprises an adjusting core shaft extending along a horizontal direction, one end of the adjusting core shaft is fixedly connected with a workbench while the other end is connected in a sliding manner with an adjusting sliding block, the adjusting sliding block is provided with an adjusting stage for height adjustment in a vertical direction, an adjusting disc is connected in a rotating manner onto the workbench through a rotating part, one end of a driving swing arm is hinged to the adjusting disc while the other end is hinged to a guide swing arm, a guide press plate fixedly connected onto the workbench is provided with at least two sliding chutes along a radial direction of the guide press plate, the adjusting disc rotates and drives clamping posts disposed on the guide swing arm to be connected in a sliding manner into the respective sliding chutes, the end face of a large hole of a piston rod is attached to the guide press plate, the inner wall of the large hole is abutted against the clamping posts, and the end face of a small hole of the piston rod is attached to the adjusting stage. With adoption of the technical scheme, the coordinating precision is reduced, the processing difficulty is lowered, and universality of the measuring tool to piston rods of different types is realized.

The invention discloses a cover opening mechanism for an electric kettle. The cover opening mechanism comprises a handle base (2), a kettle cover (4), a handle cover (14), a kettle cover connecting base (3), a latching rocker arm (13) and a cover opening button (12), wherein the kettle cover connecting base (3) is fixed on the handle base (2), the latching rocker arm (13) is hinged on the kettle cover connecting base (3) through a hinging shaft (11) of the latching rocker arm (13), the hinging shaft (11) of the latching rocker arm (13) is provided with a rocker arm torsional spring (16), the cover opening button (12) is arranged on the handle cover (14) and corresponds to the latching rocker arm (13) in the vertical direction, a connection part of the kettle cover (4) is hinged on the kettle cover connecting base (3) through a kettle cover hinging shaft (7), the kettle cover hinging shaft (7) is provided with a kettle cover torsional spring (15), the connection part of the kettle cover (4) is provided with an upper kettle cover leaning head (9), the latching rocker arm (13) is provided with a locking shoulder (10), and in a closed state, the locking shoulder (10) props against the upper kettle cover leaning head (9). Due to the structure, the cover opening mechanism has the characteristics of simple and reasonable structure, convenience in operation and use, stable and reliable work, good opening effect, long service life and the like.

The invention belongs to the technical field of energy-conservation and environment-friendly equipment and particularly relates to a float type composite powder plunger device. The float type composite powder plunger device comprises a hoisting mechanism capable of achieving lifting liquid conveying, a lifting mechanism used for hoisting and a gas-liquid replacement acting mechanism providing powder for the hoisting mechanism and the lifting mechanism. The upward hoisting part of the hoisting mechanism is connected with the upward lifting part of the lifting mechanism through a power transmission chain. The gas-liquid replacement acting mechanism is connected with the hoisting mechanism and the lifting mechanism through gas exchange systems correspondingly. Floating force generated in thegas-liquid replacement process is used for providing power for the hoisting mechanism and the lifting mechanism. The hoisting mechanism is arranged in a high-water-level area, and the lifting mechanism is located above a low-water-level area. The float type composite power plunger device is a combination body of a float and a plunger, liquid conveying is achieved through the gas-liquid replacementacting mechanism and the water level difference, a large amount of energy does not need to be consumed in the liquid conveying process, and only an extremely small part of electric energy is needed for providing electricity for an electrical element. Structural design is reasonable, energy conservation and environment friendliness are achieved, and the device can be easily used and popularized ina large scale.

The improved finned heat sink with composite steel-aluminum tubes includes heat radiating finned tubes, and upper collecting box and lower connecting box connected to the heat radiating finned tubes. The heat radiating finned tube includes one aluminum tube, aluminum fins around the aluminum tube and one steel tube fitted closely inside the aluminum tube. The steel tubes are welded to the upper collecting box and the lower connecting box, and the aluminum tube has at least one longitudinal slot for enclasping the steel tube tightly through elastic deformation. The present invention has simple steel tube-aluminum tube combining process and lowered production cost of the finned heat sink with composite steel-aluminum tubes.

The invention relates to the field of valve machining, in particular to a valve seat grinding, clamping and moving device. The device comprises a lathe bed, a valve seat clamping mechanism and a valveseat clamping and moving mechanism, wherein the valve seat clamping mechanism comprises a transmission main shaft, a transmission shaft, a clamping mechanism base and a spring; the transmission mainshaft penetrates through the clamping mechanism base, a fixing groove is formed in the transmission main shaft, the transmission shaft is coaxial with the transmission main shaft, and a rectangular linear bearing is arranged between the transmission shaft and the transmission main shaft; the upper end of the transmission shaft is connected with a self-centering chuck; the spring is positioned between the transmission main shaft and the self-centering chuck; the valve seat clamping and moving mechanism comprises a lead screw, and the lead screw penetrates through the clamping mechanism base andthe lathe bed and is in threaded fit with the clamping mechanism base; a guide groove is formed in the lathe bed in the axial direction of the transmission shaft; and the clamping mechanism base is connected with the guide groove in a sliding manner. The valve seat grinding, clamping and moving device disclosed by the invention can drive a valve seat to move, so that the workload of workers is reduced, and the machining efficiency is improved.

The present invention discloses a transmission mechanism for a 40.5kV switch cabinet isolation switch. The mechanism comprises an insulation screw, the insulation screw is sleeved with a ground contact, a movable contact support and a static contact which are fixed on a switch cabinet in order in the axial direction, the movable contact support is provided with a through hole configured to allow the insulation screw to pass through, the through hole is internally provided with a movable contact being in threaded connection with the insulation screw, one ends, close to the movable contact support, of the ground contact and the static contact are provided with slotted holes holding the movable contact, the movable contact is moved left and right into the slotted holes with the rotation of the insulation screw, the length of the movable contact is smaller than a distance between the static contact and the ground contact, and the length of the movable contact is larger than a distance between the static contact and the movable contact support and a distance between the ground contact and the movable contact support. The transmission mechanism is simple in structure, convenient to transport, install and operate, high in reliability and free of maintenance and little in maintenance.

Provided is an embrittling splitting and clamping device used for a connecting rod cap and a connecting rod body with high strength and toughness steel. The embrittling splitting and clamping device used for the connecting rod cap and the connecting rod body with high strength and toughness steel is characterized by comprising a base plate, a positioning sleeve, a positioning pin, a fixed taper-lock, fixed clamping chucks, a slipway, a movable taper-lock, an expansion rod, movable clamping chucks and a reset mechanism, wherein the positioning sleeve is longitudinally arranged on the upper surface of the base plate; the positioning pin is arranged on the positioning sleeve and is provided with the periphery surface which is sleeved with a connection rod smaller head; the slipway is arranged on the base plate in a horizontally moving mode; a first wedge surface is formed in the interior of the movable taper-lock and formed in the slipway, the movable taper-lock is matched with the fixed taper-lock to form a taper-lock assembly, and the taper-lock assembly is longitudinally hollow and is provided with the periphery surface which is sleeved with a positioning connection rod larger head; the expansion rod is longitudinally arranged in the taper-lock assembly and provided with a second wedge surface which is matched with the first wedge surface of the movable taper-lock. Compared with the prior art, the embrittling splitting and clamping device used for the connecting rod cap and the connecting rod body with high strength and toughness steel has the advantages that the whole clamping device structure is simple in structure, easy to manufacture and relatively low in cost.