9 results about "Trochoid" patented technology

The present application is to solve the problem of low efficiency and slow speed of the tooth row in the existing nail gun; a high-efficiency trochoidal roller rack structure and nail gun are provided, wherein the trochoidal roller rack structure comprises a striker and a transmission structure; the striker and the transmission structure are connected; characterized in that the transmission structure comprises an engaging wheel; the engaging wheel is in the shape of a disc as a whole; a plurality of cylindrical teeth are arranged on the engaging wheel and are arranged at equal angles around the axis of the engaging wheel; a trochoidal rack is arranged on the striker and cooperates with the plurality of cylindrical teeth; the trochoidal rack is a tooth row composed of a plurality of trochoidal teeth; the linear velocity of the striker is improved, and the efficiency of the nail shooting is improved.

The invention relates to the technical field of rotary piston pumps, in particular to a symmetrical single-claw rotor with a conic curve and claw type fluid machine.The symmetrical single-claw rotor with the conic curve comprises two claw type rotors which are the same in section molded line and can do synchronous different-direction double-rotation motion around respective rotation centers; the section molded line of the claw type rotor comprises a cycloid, a point, a claw top arc, a conic curve, a pitch circle arc, a conjugate curve of the conic curve and a claw bottom arc which are connected in sequence. According to the invention, the section molded lines of the two claw rotors are completely the same, and the claw parts of the claw rotors are composed of the cycloids, the claw top arcs and the conic curves, so that the formation of a plurality of working cavities in the mixing process is avoided, and the problem of multiple times of compression and expansion of gas caused by the segmentation and combination of the plurality of working cavities in the mixing process is solved; the irreversible loss and power consumption are reduced, and the working efficiency is improved.

The utility model discloses a kind of cycloidal jigs, belong to wire rod cycloidal field, a kind of cycloidal jig, including base and line pressing assembly, base has several first wire passing grooves and several through holes, through hole is through several first wire passing grooves, to be cut into two sections, line pressing assembly has several different height protrusions, protrusion is inserted into through hole.The utility model's cycloidal jig, by the height difference of protrusion, a plurality of different length row group is pressed out, only needs once line and cycloidal to be completed, compared with traditional multiple repeated operation, substantially reduce process, improve efficiency, while reducing artificial strength and intervention frequency, improve work experience.

Eccentric gear unit comprising a shaft (3) rotatable about an axis of rotation (2), which has at least one eccentric section (4) with a central eccentric axis (5) arranged at an acute angle (6) to the axis of rotation (2) and intersecting the axis of rotation (2) at a point “O1” (12), a planet (7) rotatably mounted on the eccentric section (4) about the eccentric axis (5), the planet (7) having planetary gear teeth (8), a first gear unit (13) with a first gear tooth which is in meshing contact with the planetary gear tooth (8) at a first point of engagement via rotationally symmetrical transmission elements (19), and a second gear unit (15) with a second gear tooth which is in meshing contact with the planetary gear tooth (8) at a second point of engagement via rotationally symmetrical transmission elements (19), wherein the transmission surfaces of the gear teeth in the first and second gear units (13; 15) are produced in this way,by traversing the trochoid, which is formed when the pitch circle of the planet (7) rolls over the pitch circle of the gear part (13; 15) according to a constant transmission ratio, with a profile identical or similar to that of the transmission element, thereby removing material from the gear part (13; 15), so that the transmission elements between the planet (7) and the gear parts (13; 15) perform a rolling motion, wherein the transmission surfaces created by the trochoids are only partially retained in the material of the gear parts (13; 15), whereas the transmission surfaces created by the planet trochoids in the planet (7) are completely incorporated into the material of the planet (7), characterized in that the rotatable shaft (3) has an additional second eccentric section (9) with a central second eccentric axis (10) which has an angle (11) to the axis of rotation (2),which is half as large and has the same sign as the angle (6) of the first eccentric axis (5), such that the 3 axes (2), (5) and (10) intersect at exactly one point “O1” (12), the center of rotation, and a two-part cage is mounted on this second eccentric section (9), which has a first cage part (17) and a second cage part (18), so that the transmission elements are received between the two cage parts with minimal to no play, which run in equal numbers with the trochoidal rolling channels (24) provided in the planet (7) and simultaneously perform a pure rolling motion in the trochoidal rolling channels (14) of the first gear part (13) and in the trochoidal rolling channels (16) of the second gear part (15) diametrically opposite to point “O1” (12).

To provide a low-cost technology capable of suppressing damage caused by trochoidal interference.SOLUTION: A gear pair 1 includes a driving gear 2 and a driven gear 4 that are mutually engaged. The driving gear 2 and the driven gear 4 each have a surface-hardened layer on the respective surfaces. The surface-hardened layer of the driving gear 2 has a surface hardness of 700 HV or more and 780 HV or less. The surface-hardened layer of the driving gear 2 has a carbon concentration ranging from 0.80 to 0.99 mass%. The amount of retained austenite on the surface of the surface-hardened layer of the driving gear 2 is 25 volume% or more and 40 volume% or less. The surface-hardened layer of the driven gear 4 has a surface hardness of 720 HV or more and 800 HV or less. The surface-hardened layer of the driven gear 4 has a carbon concentration ranging from 0.60 to 0.74 mass%. The amount of retained austenite on the surface of the surface-hardened layer of the driven gear 4 is 5 volume% or more and 19 volume% or less. The surface-hardened layer is either a carburized layer or a carbonitrided layer.SELECTED DRAWING: Figure 1

The utility model discloses a kind of high-efficiency grinding cutter bars of trochoid motor stator sleeve, including cutter bar frame body and motor stator sleeve, CBN grinding wheel and axle rod are arranged in the cutter bar frame body, wherein, fixed side plate is installed in cutter bar frame body side, rectangular let space is between the cutter bar frame body and the fixed side plate, the axle rod is installed between the cutter bar frame body and the fixed side plate, CBN grinding wheel is rotatably connected in the axle rod side wall, CBN grinding wheel side is installed with synchronous pulley, synchronous pulley side wall is equipped with synchronous belt, driving mechanism corresponding with the synchronous belt position is provided on the cutter bar frame body upper portion;Through the cooperation of CBN grinding wheel, synchronous pulley, synchronous belt and driving mechanism, the improvement of CBN grinding wheel rotating speed is realized, and cutter bar can be deeply into the internal processing of part, greatly shorten processing time, improve processing efficiency, meet large-scale production demand, reduce production cost.

1. The name of this design product: Rack (Trochoid). 2. Application of the product with this design: used for mechanical accessories for precision transmission in laser inkjet printers, laser cutting machines, industrial robots, mechanical trusses, CNC gantry machining centers, photovoltaic industries, etc. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

A streamlined design adjustable twin-screw rotor and its profile design method, the rotor includes a female rotor and a male rotor that mesh with each other, according to the meshing relationship, the A on the rack curve r B r , B r C r , C r D r , D r E r , E r F r , F r G r , G r H r , H r I r , I r J r The curve segments in the yin and yang rotor profiles are generated by the segment A. r B r Segment is a Bezier curve segment, B r C r The segment is a straight line segment, C r D r The segment is an equidistant curve segment of the trochoid, D r E r The segment is an equidistant curve segment of the trochoid, E r F r The segment is an arc segment, F r G r The segment is a Bezier curve segment, G r H r The segment is a straight line segment, H r I r The segment is a Bezier curve segment, I r J r The segments are straight segments, and the slopes of the curve segments on the rack curve are continuous. The present invention can flexibly adjust the streamline design, transmission design and sealing performance of the twin-screw rotor, thereby achieving the regulation of the thermal performance, power performance and mechanical efficiency of the twin-screw machine.

This invention discloses a subcycloidal trajectory machining method and tool, relating to the field of machining technology. The method includes: determining workpiece window design parameters and using these parameters as input; calculating tool geometric parameters and installation / positioning parameters based on the geometric relationship between the target window size and the subcycloidal trajectory; designing the tool structure based on the tool geometric parameters; determining the tool-to-workpiece speed ratio after obtaining the tool structure; mounting the tool on the spindle end and the workpiece on the rotary table according to the installation / positioning parameters, and setting machining parameters based on the speed ratio to establish a tool-workpiece composite motion; and machining the target window opening through the tool's feed motion. This invention employs the aforementioned subcycloidal trajectory machining method and tool, which, with a given target window opening size, can calculate the geometric and motion parameters of the tool and workpiece, allowing the tool trajectory to naturally form the target window opening contour, greatly improving machining efficiency and dimensional consistency.