96results about How to "Good reassuring effect" patented technology

The invention discloses a method for processing a rectangular-tooth spline sleeve using 42CrMoE high-quality alloy steel as a material, belonging to the technical field of thermal treatment. The method comprises the steps of: free forging of a blank, normalizing treatment, rough turning, hardening and tempering thermal treatment, finish turning, spline drawing, drilling, burr gripping, carburization treatment, surface deposition treatment, phosphorylation treatment, electroplating, drying and detection. In the invention, due to the new material and new technology, the wear resistance of the produced rectangular-tooth spline sleeve is greatly enhanced, the phenomenon of crack of the rectangular-tooth spline sleeve is avoided, the surface is smooth, the friction is low, the heat dissipation is good, and the service life is prolonged, thus the processing technology is widely applied.

A drill comprises a shaft with chip conveying flutes and a drill head at its forward end with at least two cutting inserts. Each cutting insert is provided with at least one cutting edge which is delimited between a chipbreaking surface and first relief surface and which includes an outer straight edge. In the proximity of the center axis of the shaft, a curved cutting edge section is provided, to which there is connected an adjacent enforcement bevel. The cutting edge is in direct proximity to a center axis, and is terminated by a chisel edge between the cutting inserts to serve as a centering core portion. The curved cutting edge section is inwardly followed by a primary straight portion without an adjacent enforcement bevel in a direction that is oriented at an angle of between approximately 40–50° in relation to a horizontal line that extends through the center axis of the drill.

The invention discloses engine cylinder body full-automatic vertical electro brush plating equipment with X, Y and Z three-dimensional slide guides to perform accurate positioning, wherein the working procedure and the steps are controlled by a microcomputer procedure. The equipment comprises a 'plating solution providing and recovering system' which automatically injects according to the working procedure and storing in a classifying and recovering way with a solution dividing pan; a 'centered plating head' which is installed on a main spindle box on the Z slide guide, is provided with electrolysis material, and is connected with a sealed chamber; a nonmetal 'insulating platform' with the multifunction of insulating, self-weight multi-position sealing, plating solution collecting and positioning work piece bearing; a cylindrical 'temperature-increasing system' which is hung behind a shield cover for heating cleaning water before and after changing the solution; a 'temperature-reducing system' of a microcomputer and a program control electrical cabinet large-power brush plating electric source; an 'exhausting device' for volatilizing gas of the plating solution; and a 'vertical electro brush plating center' which performs one-off clamp multi-work position electro brush plating repair for worn and broken 'multi-pore workpieces' and can be continuously produced with large power and on a large scale.

The invention discloses an angle adjustable rapid laser cutting device of a power construction elbow. The angle adjustable rapid laser cutting device comprises a base, a shell, a gear ring, a laser cutting head, a telescopic mechanism and a workpiece clamping mechanism, wherein the workpiece clamping mechanism is arranged on the base, axial through holes are formed in both side walls of the shell, the gear ring is movably connected with the shell by virtue of a sliding connecting mechanism, the telescopic mechanism is fixedly connected with the gear ring by virtue of a bracket, the laser cutting head is connected to the telescopic end of the telescopic mechanism, the gear ring is connected with a rotary driving mechanism by virtue of a driving gear engaged with the gear ring, and the rotary driving mechanism is fixedly connected with the base; the workpiece clamping mechanism comprises a support rod, a left electric telescopic mechanism and a right electric telescopic mechanism, the support rod is arranged on the base, the left electric telescopic mechanism and the right electric telescopic mechanism are arranged on the support rod, left clamping pieces and right clamping pieces are respectively arranged on both ends of the left electric telescopic mechanism and the right electric telescopic mechanism, and at least one clamping piece righting mechanism is arranged on the support rod. According to the device, a multi-connected elbow can be quickly cut, the quality is reliable, and a notch does not need to be trimmed.

The invention discloses a differential bearing mounting device with a bilateral bearing self-centering function. The differential bearing mounting device comprises upper-side self-centering bearing clamping mechanisms, lower-side self-centering bearing clamping mechanisms and a bottom plate; the lower ends of a left upright column and a right upright column are fixed to the bottom plate; a differential carrier plate and a pressure plate are in sliding connection with the left upright column and the right upright column; the cylinder fixing plate is fixed to the left upright column and the right upright column; a lifting cylinder is fixed to the cylinder fixing plate; a mandrel and the pressure plate are fixed with a piston rod of the lifting cylinder; a bearing fixing seat is fixed to thepressure plate; the bearing fixing seat and the mandrel are provided with a cylindrical cavity for accommodating an upper-side bearing; the upper-side self-centering bearing clamping mechanisms are arranged on the bearing fixing seat; the lower-side self-centering bearing clamping mechanisms are arranged on the bottom plate; the differential carrier plate is provided with a structure for fixing adifferential and an upper-side bearing lifting mechanism; the left upright column is provided with a left compression spring between the differential carrier plate and the bottom plate; and the rightupright column is provided with a right compression spring between the differential carrier plate and the bottom plate. The self-centering fixing of the upper-side bearing and a lower-side bearing ofthe differential is realized, and the mounting of the bilateral bearings of the differential is simpler and more convenient.

The invention discloses a hydrostatic nut pair with an internal variable throttling function and relates to the field of precision machinery automation equipment. The hydrostatic nut pair with the internal variable throttling function comprises a lead screw and a nut which are mutually matched, wherein a first oil cavity and a second oil cavity are formed in the two sides of each inner thread tooth surface of the nut, and the radial section projections of both the first oil cavity and the second oil cavity are fan trapezoids; through the corresponding first oil cavity and second oil cavity, a hydrostatic oil film of lubricating oil can be formed between the lead screw and each tooth side surface of the nut; a groove used for communicating with the corresponding first oil cavity and the corresponding second oil cavity is formed in each internal thread tooth of the outer circle of the nut; a movable throttling part is mounted in each groove, and comprises a slide valve, a first elastic component and a second elastic component; an oil supply groove communicating with each groove is formed in the outer circle of the nut; an external sleeve is mounted on the outer circle of the nut in a matched manner; and an oil supply hole communicating with the oil supply groove is formed in the external sleeve. By adoption of the hydrostatic nut pair provided by the invention, not only can an oil supply pipeline be simplified, but also the throttling performance can be improved.

The invention discloses a laser cutting device for clamping elbows in electric power engineering, which comprises a base, a casing, a ring gear, a laser cutting head, a telescoping mechanism and a workpiece clamping mechanism, and axial through holes are arranged on the two side walls of the casing , the ring gear is movably connected to the housing through a sliding connection mechanism, the telescopic mechanism is fixedly connected to the ring gear through a bracket, the laser cutting head is connected to the telescopic end of the telescopic mechanism, and the ring gear is connected to the rotating drive mechanism through the driving gear meshed with it, The rotary driving mechanism is fixedly connected with the seat body. The device solves the problems of laser cutting such as irregular shape of the bent pipe and inclined incision, realizes high-quality and high-efficiency cutting of the bent pipe, has high cutting precision, and can greatly improve production efficiency.

The invention discloses a once-forming valve grinding machine. The once-forming valve grinding machine comprises a lathe as well as a workpiece main shaft and a grinding main shaft which are rotatably supported on the lathe and are parallel to each other, wherein the workpiece main shaft is rotatably supported on the lathe through a workpiece main shaft base and a feeding workbench; a spring chuck is arranged in an inner hole of the workpiece main shaft; the spring chuck is connected with a pulling tube drive device through a pulling tube; a positioning rod is spiced in a pulling tube; the rear end of the positioning rod is connected with a discharge air cylinder; a positioning air cylinder is further arranged on the workbench; the positioning air cylinder is in one-way driving connection with the positioning rod; a valve centering supporting mechanism is arranged on the workbench; a centering block on the valve centering supporting mechanism and the grinding wheel main shaft are oppositely arranged at the two sides of the workpiece main shaft; an automatic feeding device, an automatic loading device and a discharge conveying device are further arranged on the lathe. The once-forming valve grinding machine can be suitable for requirements of valve once-forming grinding processing, is high in degree of automation, and can guarantee positioning precision; and a processed valve has a determined position state in a conveying process.

The application relates to a chain guard for a chainsaw with interchangeable cutting attachments of different lengths, said cutting attachments having cutting chains, wherein the chain guard comprises an insertion opening for inserting a cutting attachment, at least two side walls for covering lateral surfaces of the cutting attachment, a front end opposite the insertion opening, a first latching depression formed in at least one side wall, and a second latching depression formed in at least one side wall at a distance closer toward the insertion opening with respect to the first latching depression, wherein the first latching depression and the second latching depression each comprise an arcuate latching surface for latching in a form-fitting manner with a cutting chain of the cutting attachment, said latching being active in the direction of a longitudinal axis of the chain guard, and also to a chainsaw system having such a chain guard.

The invention discloses a key-connection combined vertical roll and belongs to the technical field of rolls. The key-connection combined vertical roll comprises a roll shaft and a roll sleeve. The roll sleeve is connected to the outer circumference of the middle of the roll shaft through a key in a matched mode. By adoption of the key-connection combined vertical roll, the problem that the difference between the diameter of a roll body and the diameter of a roll neck of the vertical roll is large, the overall casting gross-to-net ratio is large, and consequentially the production cost is high is solved, the production cost is greatly lowered, the centring performance is good, and the bearing capacity is high.

The invention discloses an equidistant arc surface and a machining device. The center Oe of the equidistant arc surface R is designed to be outside an equidistant arc profile inscribed circle, namely,R is larger than d; centers O of small arcs r1 in the equidistant arc surface are designed to be on a center O of an equidistant large arc surface, namely, the plurality of small arcs are concentriccircles, and the radius r2 of a small arc in a hub hole is larger than the radius r1 of a small arc on an equidistant arc surface axis (r2 > r1). The equidistant arc surface with the high precision (h5-h6) and the high degree of finish (Ra0.8-0.4 micron) can be quickly produced through grinding by the machining device.

A geophysical exploring device method for the transitional zone areas between bog and shallow beach sea belongs to the technical field of geophysical exploration. An air gun is arranged in a drill bit composed of two drill bit piece bodies, filling blocks are welded into the two drill bit piece bodies, a drill stem connecting flange is arranged at the bottom of a drill stem, the drill stem connecting flange is of an integrated structure, drill bit connecting flanges are arranged at the upper portions of the drill bit piece bodies, the drill bit connecting flanges are of two semi-annular structures, the drill stem connecting flange is sleeved by an anti-loosen screw to be connected with the drill bit connecting flanges, and accordingly the drill stem and the drill bit piece bodies are combined to form a main body structure of a detachable type air gun drill bit. Two symmetrical spiral pieces are welded to the bottoms of the drill bit piece bodies respectively to form a dual-spiral drill bit structure. The diameter of the drill bit composed of the two combined spiral piece is 500mm. The drill bit piece bodies are of hollow structures, composed of two semi-tubular structures respectively and sleeved by screws to be fixed. The air gun is arranged in the hollow structures. By means of the dual-spiral drill bit structure, stimulating operation of the air gun can be finished synchronously.

The invention relates to a tool holder (2) for a screw-in tool (1), comprising a receiving body, which comprises a receiving opening (6) with an inner thread (7) and a support region with at least one guide surface (11) for receiving the screw-in tool (1) in the tool holder (2) accurately in position. The receiving body according to the invention comprises a receiving part (8) and a guide part (9), which is fixed on the receiving part (8) and on which the support region with the at least one guide surface (11) is provided.

The invention provides a roller type synchronous locking device aiming to achieve the purposes of efficiently completing a locking task, achieving that a locking cup reliably locks a nut and improvingthe work efficiency and reliability of engine assembly. The roller type synchronous locking device comprises connection rod assemblies and an actuating assembly. Each connection rod assembly comprises a connection rod body, a roller and a compression cam, wherein the roller and the compression cam are rotationally fixed to the two ends of the connection rod body and the compression cam is in contact with the portion to be locked of the locking cup. The actuating assembly comprises a fixed portion ad a moving portion. The fixed portion is fixed to the shaft end, and each connection rod is hinged to the fixed portion. The surface of the movable portion is in contact with each other roller. During synchronous locking, the movable portion moves in the axial direction relative to the fixed portion, so that the rollers are promoted to drive one ends of the connection rod bodies to move, and then the compression cams synchronously lock the to-be-locked portion of a lock cup into a clamping groove structure of a shaft end nut.

The invention discloses a twist drill. The twist drill is characterized in that main blades of the twist drill are bent blades, in other words, a plurality of spiral grooves are formed in spiral surfaces of front tool faces of the main blades, projection of each spiral groove on an end plane of the twist drill is a curve or a fold line which is used as a generating line, and the spiral grooves spirally move around a drill spindle from the generating lines. The invention further discloses application of the twist drill to drilling machining. The twist drill and the application have the advantages that the twist drill is excellent in comprehensive drilling performance, holes can be drilled and machined within a short time, the twist drill is low in drilling power consumption and high in tool durability, and a tool sharpening method is simple and convenient and is easy to implement.

The invention discloses a twist drill for machining holes of laminated welded steel. The twist drill for machining holes of the laminated welded steel includes a cutting part and a shank part. The cutting part includes a drill tip and a secondary cutting part, and the drill tip is provided with two main cutting edges and a chisel edge connecting the two main cutting edges. The secondary cutting part is provided with two chip discharging grooves and two first cutting edge belts, and the first cutting edge belts and the chip discharging grooves intersect to form a secondary cutting edge. The main cutting edges are provided with negative chamfers, and the negative chamfers do not pass the intersections of the main cutting edges and the chisel edge. The length of the chisel edge is L5, whereinthe L5 is larger than or equal to 0.017D and less than or equal to 0.03D, and D is the diameter of the cutting part. According to the twist drill for hole machining of the laminated welded steel, thelength of the chisel edge is only one third of that of a conventional chisel edge, the length of the chisel edge of the drill tip is small, the centering capacity during drilling of the laminated welded steel is increased, the twist drill for hole machining of the laminated welded steel is suitable for drilling machining of steel with varying hardness among different materials, the problem of drilling deviation in the drilling process is reduced, the negative chamfers are arranged on the main cutting edge, no negative chamfer is arranged on the entire chisel edge, and the sharpness of the chisel edge is not changed while the strength of the main cutting edge is increased, so that the centering performance of the chisel edge is better.