35results about "Cams" patented technology

Disclosed herein are a cam and a harmonic reducer. The cam includes a cam main body, where an outer contour line of the cam main body includes a plurality of engagement region contour curves and a plurality of non-engagement region contour curves; the engagement region contour curves and the non-engagement region contour curves are alternately connected to jointly form the outer contour line of the cam main body; the engagement region contour curves and the non-engagement region contour curves are tangent to each other at intersections; each engagement region contour curve includes a first curve and a second curve, and the first curve and the second curve are connected and are tangent to each other at a joint; a first segment of the first curve protrudes more outwards than a first segment of the second curve.

The invention discloses a damping device, a suspension system and a vehicle, the damping device comprises a motor cam assembly, the motor cam assembly comprises a motor stator part and a motor rotor part, the motor stator part is used for driving the motor rotor part to rotate, and a cam driving part is formed on the motor rotor part; the motor rotor part is provided with a cam driving part, the driven matching structure is provided with a cam driven part, the cam driving part is in sliding fit with the cam driven part, and when the motor rotor part rotates, the cam driving part pushes the cam driven part to drive the driven matching structure to do linear reciprocating motion. According to the vibration reduction device, the motor rotor part can be driven by the motor stator part to rotate, so that the cam driven part can drive the driven matching structure to do linear reciprocating motion, the vibration reduction effect is achieved, the cam driving part and the cam driven part are in sliding fit, the installation structure is more compact, the integration degree is higher, and the vibration reduction effect is better. And the production cost and the manufacturing cost can be reduced.

Eccentric bearing for converting a rotary motion into a linear motion, comprising a rotatably driven shaft (2), a bearing ring (3) enclosing the shaft (2), and rolling elements (5) arranged around the shaft (2) in a gap (4) between the shaft (2) and the bearing ring (3), characterized in that the bearing ring (3) is eccentric to the shaft (2), that the rolling elements (5) have different diameters corresponding to a different gap width between the shaft (2) and the bearing ring (3), and that the rolling elements (5) are enclosed by an annular loop (7) which acts on the rolling elements (5) against a circumference of the shaft (2).

A cam and a harmonic reducer, wherein the cam includes a cam body (1), an outer contour line of the cam body (1) includes a plurality of meshing region contour curves and a plurality of non-meshing region contour curves, the meshing region contour curves and the non-meshing region contour curves are alternately connected so as to jointly form the outer contour line of the cam body, the meshing region contour curves and the non-meshing region contour curves are tangent at the intersection points, each meshing region contour curve includes a first curve (10) and a second curve (20), the first curve (10) is connected to the second curve (20) and is tangent at the connection point, a first section (101) of the first curve protrudes outside a first section (201) of the second curve, and a second section (202) of the second curve protrudes outside a second section (102) of the first curve.

This invention discloses a camshaft manufacturing process, comprising the following steps: S1: Determine the blank, clarifying the machining allowance, dimensional tolerance values, and shape of the blank; S2: Determine the positioning datum of the blank, first determining the rough machining datum and the finish machining datum, and then selecting the rough datum based on the analysis and clarification of the finish machining datum; S3: Rough machining, using milling and lathe equipment to rough machine the blank, cutting out the outer contour shapes of the cam and spindle according to the rough machining datum, and then grinding the camshaft dimensions; S4: Finish machining, first positioning the blank using locating keys, and then using a grinding machine to precisely machine the outer cylindrical surface, cam groove, and oil hole of the camshaft. In this invention, the use of locating keys to position the blank can improve the machining quality of the camshaft, and at the same time, the improved quenching process solves the problems of excessive hardened layer depth difference and quality of soft strips in the transition zone, as well as the problems of camshaft quenching cracking, soft strips, and peeling at the edges and corners.

A tube grooving device with multiple geared cams uses synchronizing gears, each meshing with two of the geared cams to synchronize the rotation of the cams of the tube element for forming a groove. The position of the groove relative to the end of the tube is controlled by a stop body incorporating a plate mounting ring that engages and disengages with a tube stop surface on one or more of the cams to restrict or allow cam rotation. The tube stop body is positioned within a cup receiving the tube element. This cup restricts flaring at the tube end and limits the tendency for the tube to become out of round during the grooving process. The device is mounted on a power chuck that rotates the tube element.

The invention discloses a transmission cam, a cam mechanism, a motor, a suspension assembly and a vehicle. The transmission cam comprises a cam body; at least two guide structures are arranged on the cam body, and the spiral directions of the at least two guide structures are opposite in the axial direction of the cam body. In this way, the at least two output pieces are matched with the at least two guide structures correspondingly, so that the at least two output pieces stretch out of the two ends of the cam body in the spiral direction of the guide structures correspondingly, and a larger stroke is obtained.

The invention relates to a supporting disc (20) for a carousel (2) of a stepper gearbox, wherein the supporting disc (20) is formed by a rotating body which is provided with a central through first opening (Y) for mounting the stepper gearbox on the shaft and which is further provided with a system of second openings (Z) for mounting pulleys (A, B), wherein the second openings (Z) are arranged around the central through first opening (Y) on a pitch circle (D) at angular spacings (α) along the circumference of the supporting disc (20). The body of the supporting disc (20) consists of a fibre composite (VK), wherein the first opening (Y) and the second openings (Z) are formed in inserts (V) which are embedded in the fibre composite (VK) of the body of the supporting disc (20) and are connected to it.

Disclosed herein are a cam and a harmonic reducer. The cam includes a cam main body, where an outer contour line of the cam main body includes a plurality of engagement region contour curves and a plurality of non-engagement region contour curves; the engagement region contour curves and the non-engagement region contour curves are alternately connected to jointly form the outer contour line of the cam main body; the engagement region contour curves and the non-engagement region contour curves are tangent to each other at intersections; each engagement region contour curve includes a first curve and a second curve, and the first curve and the second curve are connected and are tangent to each other at a joint; a first segment of the first curve protrudes more outwards than a first segment of the second curve.

Disclosed is a tool holding device (1) for a turning machine, the tool holding device comprising a housing (2) and a first vibrating mechanism (5), the first vibrating mechanism (5) being a tool holder (12) for holding a tool (28), the tool holder (12) comprising a vibrating bearing (26), the tool holder (12) comprising at least one elastic element (4) abutting the tool holder (12) at one end and the housing (2) at the other end, a motion link (8) connected to the housing (2) and used to movably embed the tool holder (12), and a pulse spindle (10) mounted on the housing (2) and abutting the vibrating bearing (26) of the tool holder (12) at its side surface (21), the side surface (21) being substantially cylindrical and interrupted by at least one protrusion (22). At least one elastic element (4) is positioned to press the tool holder (12) toward the side (21) of the pulse spindle (10) with the vibrating bearing (26) such that the rotation of the pulse spindle (10) generates vibrations in the tool holder (12) due to irregularities (22) on the side (21) of the pulse spindle (10). The pulse spindle (10) is displaceably mounted in the housing (2) so as to be displaceable along the longitudinal axis (a) of the pulse spindle (10), and at least one irregularity (22) is a surface (22) with an inclined shape when viewed along the longitudinal axis (a) of the pulse spindle (10), so that the contact point between the pulse spindle (10) and the vibrating bearing (26) is selectable along the longitudinal axis (a), and the amplitude of vibration is modifiable and adjustable.

A one or more plane, variable camshaft is described. The single plane camshaft includes a circular drive plate with two radial drive slots on opposing sides of the center, four arms movably coupled at respective endpoints and arranged in a polar configuration, and a scroll plate to allow adjustable operation of the camshaft. Multiple plane camshafts may include a number of half drive plates arranged around a drive block and secured to a base washer through a scroll block. The variable camshaft may be incorporated into portable, motorized or manual, bag valve mask based resuscitation devices or similar ones.

The invention relates to a cam assembly, a linear motion device, a suspension system and a vehicle, the cam assembly comprises a cam and a driving mechanism, the driving mechanism comprises a first actuating piece and a second actuating piece, the first actuating piece is configured to drive the cam to rotate by rotating around a first pivot axis of the first actuating piece, and the second actuating piece is configured to drive the cam to rotate by rotating around a second pivot axis of the second actuating piece. The central axis of the second actuating piece is parallel to and spaced from the first pivot axis, and the second actuating piece can move relative to the cam, so that the cam moves relative to the first actuating piece, and the position of the rotating center line of the cam is changed. According to the technical scheme, the rotating area of the cam can be increased so as to increase the acting stroke of the cam.

This invention discloses a method for adjusting the stroke using a variable cam. It includes a variable cam body, characterized in that the variable cam body consists of a fixed cam component and a movable cam component. By moving the movable cam component on the fixed cam component, the perimeter of the variable cam body's contour line is changed, thereby adjusting the length of the stroke trajectory. The variable cam obtained by this invention, using a variable cam to adjust the stroke, only requires adjusting the stroke adjustment screw during operation to change the perimeter of the variable cam body's contour line. This allows for changing the cam's contour line without replacing the cam, thereby altering the motion trajectory or reciprocating linear motion stroke of the follower moving on the cam. This replaces the cam replacement procedure in existing technologies, significantly saving working time and greatly improving work efficiency.

A furniture member may include a seat base, a seat assembly, a legrest platform, a drive rod, and a sequencing mechanism. The seat assembly is movable relative to the seat base. The legrest platform is coupled to the seat assembly. The drive rod is rotatable relative to the seat assembly, and rotation of the drive rod causes the seat assembly and the legrest platform to move. The sequencing mechanism includes a cam that is attached to the drive rod and a follower wheel that is attached to the seat assembly. The cam is configured to prevent the seat assembly from moving between a first recline position and a second recline position while the seat assembly moves between first and second tilt positions and while the legrest platform moves between first and second legrest positions.

This invention discloses a three-dimensional lidar system based on one-dimensional linear array scanning and a cam forming method. The system includes: a transceiver module for transmitting and receiving linear array laser beams; and a scanning module including a mirror, a driving component, and a cam mechanism. The mirror reflects the linear array laser beams, and the cam mechanism includes a cam body and a rocker arm. The driving component is connected to the cam body and drives it to rotate at a constant speed. The mirror is connected to the rocker arm, and the rocker arm is connected to the cam body. The cam body rotates at a constant speed and drives the mirror to reciprocate at a constant speed within a preset angle, thereby changing the angle at which the transceiver module transmits and receives the linear array laser beams in the horizontal direction. The cam forming method is applied to the aforementioned three-dimensional lidar system based on one-dimensional linear array scanning. The three-dimensional lidar system and cam forming method proposed in this invention enable the lidar system to simultaneously satisfy the requirements of a large field of view in the vertical direction and low system height and complexity.

The present invention relates to a method (1) for manufacturing a shaft (4) carrying functional elements (2, 3). A positioning disk (8) with a receiving opening (9) for the shaft (4) and a functional element (2) with a through-opening (7) for the shaft (4) are provided and heated. The shaft (4) is then aligned, and the shaft (4), the positioning disk (8), and the functional element (2) are aligned relative to each other such that the shaft (4) is positioned in the receiving opening (9) and the through-opening (7). Subsequently, the functional element (2) cools down or is actively cooled so that it shrinks onto the shaft (4) and is thereby fixed to the shaft (4) in a force-fit connection (14). The shaft (4) is supported, at least partially, against an inner circumference (22) of the receiving opening (9) of the positioning disk (8) to prevent distortion of the shaft (4).The invention further relates to a system (27) for carrying out the method (1).

The application discloses a method for optimizing a reverse cam mechanism profile and evaluating dynamic stability, comprising the following steps: constructing a simple harmonic motion cam profile equation containing parameter correction based on the motion law of a crank slider mechanism; establishing a four-degree-of-freedom dynamic equation containing time-varying contact stiffness of the reverse cam mechanism based on Newton's second law; calculating the gas pressure and gas stiffness in the cylinder by using the ideal gas polytropic process theory; calculating the curvature radius of each point of the cam profile equation, and constructing a stiffness matrix of the reverse cam mechanism in combination with the time-varying contact stiffness and the gas stiffness; solving the four-order time-varying natural frequency of the reverse cam mechanism corresponding to the stiffness matrix, and analyzing the unstable domain under parameter excitation by using the Floquet theory to determine the parameter value range of the simple harmonic motion cam profile equation containing the parameter correction.

The invention discloses a rotation-axial conversion transmission speed change device and application thereof. The rotation-axial conversion transmission speed change device comprises a power source assembly, a driven rotating piece and a plurality of transmission pieces. The driving part is provided with a driving surface, and the driving surface is provided with an axial height profile changing in the circumferential direction, forms rolling or sliding contact with one end of the transmission part and drives the transmission part to move axially; the other end of the transmission part is in meshed contact with the end face teeth or the circumferential teeth of the driven rotating part in the axial movement process, or indirectly pushes the driven rotating part to rotate through a rolling body arranged between the transmission part and the driven rotating part. Through an intermittent transmission mechanism that rotation drives axial displacement and axial displacement pushes rotation output, speed change, quick response and a compact structure are achieved. The invention can be applied to the scenes of transmissions, clutches, overrunning clutch devices, servo braking devices, robot joint modules and the like.

The invention relates to a driving device capable of directly converting rotary motion into linear reciprocating motion, in particular to a driving device capable of directly converting the rotary motion into the linear reciprocating motion by using three parts, namely two end cams capable of realizing complementation and mutual meshing, and a machine body. According to the technology, a pestle type washing machine with the washing effect closer to that achieved through hand rubbing or wooden stick beating can be simulated, and due to the fact that the path for doing work on clothes is shortened and power consumption is reduced, low abrasion, high cleanliness, water saving, electricity saving and time saving become possible. By means of the technology, a traditional piston type air compressor or an internal combustion engine can be slimmed, after a crankshaft and a connecting rod in the piston type air compressor or the internal combustion engine are removed, abrasion, vibration, noise and the size of the whole machine can be reduced, and efficiency and response speed are improved.

The application discloses an integrated cam piece and a machining tool thereof, relates to a transmission device technical field, and aims to solve the technical problem that traditional integrated cam pieces are difficult to balance light weight and structural strength, comprising a cam piece body, a center hole is arranged on the cam piece body, a plurality of ring grooves are uniformly arranged on the surface of the center hole, ring missing grooves are arranged on two vertical surfaces of the cam piece body, adaptive grooves which are matched with the shape of the cam piece body are arranged at the two ends of the ring missing grooves in a communicated mode, the ring missing grooves and the two adaptive grooves are communicated to form a weight-reducing cavity, a groove is arranged at the root edge of the weight-reducing cavity, and the gap between the two adaptive grooves forms a T-shaped reinforcing rib with a T-shaped cross section. The weight-reducing cavity and the groove are used for weight reduction, the T-shaped reinforcing rib formed by the gap between the two adaptive grooves guarantees the strength of the cam piece body, guarantees the strength of the cam piece under working load, realizes the comprehensive demand of light weight and local structural reinforcement of the cam piece, and solves the technical problem of low functionality of the traditional integrated cam piece.

A piston pump includes a pump housing with an extrusion-formed crankshaft chamber having a top chamber wall integrally extrusion-formed with at least one side chamber wall and a bottom chamber wall. Each wall has an extrusion-formed interior and exterior surface. The pump housing also includes a pumping chamber and one or more piston passages. A crankshaft is rotatably mounted within the crankshaft chamber and extends along a longitudinal crankshaft rotation axis. One or more cams are distributed along the crankshaft axis. One or more pistons are provided, each corresponding to a cam and slidably mounted in a piston passage between a nose position and a heel position. Each piston includes a piston shaft, with a first shaft end positioned in the crankshaft chamber and having a cam engagement side in contact with the corresponding cam. The crankshaft chamber extrusion direction is parallel to the crankshaft axis.

This invention discloses a method for machining a transfer case ball cam, comprising the following steps: CNC turning before quenching; hobbing the CNC-turned workpiece; CNC milling the hobbed workpiece for spiral ball grooves and deduplication holes; carburizing and quenching the CNC-milled workpiece before quenching; hard turning the left end face, inner hole, and chamfer of the workpiece after quenching; grinding the surface of the gear on the workpiece; hard milling the spiral ball groove on the quenched workpiece; and wire cutting the workpiece using a one-sided, two-pin positioning method. This invention not only ensures the phase relationship between the outer contour of the ball cam gear and the spiral ball groove, as well as the accuracy and quenching layer depth of the carburizing and quenching of the tooth surface and the spiral ball groove surface, but also effectively improves the machining efficiency and yield of the drive ball cam.

The invention discloses a cam suitable for a light-weight high-load harmonic reducer. A method comprises the following steps: step 1, structural design: step 1.1, a foundation structure; step 1.2, key parameter matching; step 1.3, performing function adaptation; step 2, processing and manufacturing: step 2.1, early-stage preparation; step 2.2, rough machining; step 2.3, heat treatment; step 2.4, finish machining is carried out; step 2.5, detecting and calibrating; step 3, assembling and transmission: step 3.1, assembling process; and step 3.2, transmission principle. Compared with the prior art, the transmission mechanism has the advantages that the meshing performance and the bearing capacity are improved, the service life is prolonged, the transmission precision is guaranteed, and a compact structure is adapted.

The application discloses a hinge mechanism and an electronic device, and belongs to the field of communication devices. The hinge mechanism comprises a base, a floating support part, an elastic reset part and a cam. The floating support part is arranged on one side of the base close to a screen of the electronic device, and the floating support part is movably connected with the base. The elastic reset part is connected between the base and the floating support part. The cam is arranged on one side of the base facing the floating support part, and the cam abuts against the floating support part. The cam rotates to drive the floating support part to overcome the elastic force of the elastic reset part and move in a direction away from the base.

The utility model relates to the technical field of optical fiber fusion splicing-transmission parts, in particular to a cam propulsion mechanism for a hollow optical fiber fusion splicer, which comprises a mounting table, a second gear is rotatably mounted at the top end of the mounting table, a cam is fixedly connected to the center of the top end of the second gear, and a first fixing plate is fixedly mounted at the top end of the mounting table. A guide rod is installed in the first fixing plate in a penetrating mode, one end of the guide rod is fixedly connected with one side of a connecting block, the other side of the connecting block is fixedly connected with a mounting base, a mounting groove is formed in the side, away from the connecting block, of the mounting base, and a lubricating block is installed and inserted into the mounting groove. Every time the cam rotates by a circle, the surface of the cam is covered with a layer of lubricating medium by the lubricating block, the medium is consumed when the medium makes contact with the pulley of the propelling section subsequently, direct hard friction between the cam and the pulley is avoided, abrasion of the cam body is delayed by sacrificing the lubricating layer, and the service life of the cam body is remarkably prolonged.

Camshaft (1) consisting of at least one hollow shaft section (2, 3) with at least one joined cam (N1, N2, N3, N4, N5, N6, N7) and at least two bearing points (L1, L2, L3, L4, L5) on a housing, wherein in which at least one hollow shaft section (2, 3) and at least two openings (11, 12) are provided, the two openings (11, 12) within the at least one hollow shaft section (2, 3) are connected to each other by means of a connecting element (6), the connecting element (6) is formed by a pin (7, 7a) which is inserted into the at least one hollow shaft section (2, 3) and with which the at least one hollow shaft section (2, 3) forms a cavity (10) connecting the two openings (11, 12), and a collar (15) of the pin (7) has a longitudinal groove (16), such that the cavity (10) is formed by two annular spaces (17, 18) separated from each other by the collar (15) and connected to each other by the longitudinal groove (16), characterized in that two nested hollow shaft sections (2, 3) are provided, at each of which at least one bearing point (L1, L2) with an opening (11, 12) in the hollow shaft section (2, 3) is provided.

The invention provides a cam, a wave generator, a harmonic reducer and a cam design method, and relates to the technical field of harmonic transmission, the cam comprises a cam body, a surface texture is arranged on the circumferential side face of the cam body, the surface texture comprises axial microgrooves and circumferential microgrooves which are distributed in a crossed mode, the axial microgrooves extend in the axial direction of the cam body, and the circumferential microgrooves extend in the axial direction of the cam body. The circumferential microgrooves extend in the circumferential direction of the cam body. The peripheral side face of the cam body comprises long-axis areas, transition areas and short-axis areas, the long-axis areas are distributed at the two ends of the cam body in the long-axis direction, the short-axis areas are distributed at the two ends of the cam body in the short-axis direction, and the transition areas are the portions between the long-axis areas and the short-axis areas. The density of the surface texture in the long-axis region is greater than the density of the surface texture in the short-axis region, and the density of the surface texture in the short-axis region is greater than the density of the surface texture in the transition region. Through the arrangement, the problem of how to enhance the connection reliability of the cam and the flexible bearing in the prior art is solved.

The two-dimensional piston pump comprises a pump shell, a driving shaft is rotationally connected to the side end of one side of the pump shell, a plugging opening is formed in the other side of the pump shell, a cylinder body is fixed in the pump shell, cam guide rails are fixed to the two ends of the cylinder body, and wave crests on the cam guide rail on one side correspond to wave troughs on the cam guide rail on the other side; an inlet piston groove is formed in one side of the piston, and an outlet piston groove is formed in the other side of the piston; an inlet radial hole is formed in one side of the cylinder body, and an outlet radial hole is formed in the other side of the cylinder body; the pump shell is provided with an inlet mounting hole communicated with the inlet annular groove, and the pump shell is provided with an outlet mounting hole communicated with the outlet annular groove. The device is leakage-proof, high in oil liquid conveying pressure, stable in oil liquid pressure conveying and worthy of popularization and application.

To provide a wave gear device which can restrict movement of a bearing in a rotation axis direction to prevent damage to the bearing, and to provide an industrial robot.SOLUTION: A wave gear device of an embodiment includes an internal gear 3, an external gear 5, and a wave generator 6. The wave generator 6 has: a cam 31 having a non-circular outer peripheral surface 31a; and a fourth bearing 32 positioned between an inner peripheral surface 21a of the external gear 5 and an outer peripheral surface 31a of the cam 31. The fourth bearing 32 has an outer ring 33, an inner ring 34, a plurality of balls 35, and a retainer 36. The wave gear device includes a restricting portion 37 which is provided in such a way as to avoid contact with the retainer 36 and restricts the fourth bearing 32 from moving in a direction of a rotation axis C.SELECTED DRAWING: Figure 2

Tool holding device (1) for a turning machine, the tool holding device comprising a housing (2) and a first oscillation mechanism (5), the first oscillation mechanism (5) comprising: a tool holder (12) with an oscillator bearing (26) for holding a tool (28); an elastic element (4) between the tool holder (12) and the housing (2); a pulse spindle (10) mounted in the housing (2) and abutting the oscillator bearing (26) with a lateral surface (21), which is substantially cylindrical and interrupted by at least one irregularity (22). The at least one elastic element (4) is arranged for pushing the tool holder (12) towards the lateral surface (21) of the pulse spindle (10), so that a rotation of the pulse spindle (10) generates an oscillation in the tool holder (12) due to the irregularity (22) in the lateral surface (21) of the pulse spindle (10).