137results about "Cams" patented technology

The invention provides a cam, a wave generator and a harmonic reducer, the cam comprises a cam body, grooves are formed in the circumferential side face of the cam body, and the grooves are continuously or intermittently distributed in the circumferential direction of the cam body; the length of the cam body in the axial direction is H, the width W of any groove in the axial direction of the cam body meets the condition that W / H is larger than or equal to 0.15 and smaller than or equal to 0.3, and after the cam is matched with the flexible bearing, buffer spaces capable of providing elastic deformation and absorbing vibration are formed in the grooves. According to the harmonic reducer, the cam with the groove and the width meeting the design range is designed and constructed in the peripheral side face, the balance weight of the cam is reduced, the contact area between the cam and the flexible bearing is reduced, in the operation process of the harmonic reducer, a buffer space for providing elastic deformation and absorbing vibration can be formed in the groove with a certain span in the axial direction, and the service life of the harmonic reducer is prolonged. Load distribution of the harmonic reducer in the operation process is more uniform, and high-speed, low-noise and small-vibration operation of the harmonic reducer is facilitated.

The invention provides a cam, a wave generator and a harmonic reducer, the cam comprises a cam body, a material reduction area is arranged on the peripheral side face of the cam body, the material reduction area comprises a wavy surface section, and in the section where the axis of the cam body is located, the wavy surface section is in a wavy line shape extending in the axial direction of the cam body; the subtractive areas are continuously or discontinuously distributed in the circumferential direction of the cam body, and after the cam is matched with the flexible bearing, buffer spaces capable of providing elastic deformation and absorbing vibration are formed in the subtractive areas. According to the arrangement, the cam of the wave surface section is designed and constructed in the material reduction area, the self balance weight is reduced, the contact area between the cam and the flexible bearing is reduced, the cam has better structural mechanical performance, in the operation process of the harmonic reducer, a buffer space for providing elastic deformation and absorbing vibration is formed in the material reduction area, and the vibration reduction effect is improved. Load distribution of the harmonic reducer in the operation process is more uniform, and high-speed, low-noise and small-vibration operation of the harmonic reducer is facilitated.

The utility model provides a cam assembly which comprises a cam arm provided with a fixing hole connected with a driving assembly. The rotating shaft is fixed at one end of the cam arm; the pulley is movably connected with the rotating shaft, and the pulley can rotate around the rotating shaft; the end, provided with the rotating shaft, of the cam arm is cut into a concave face, and the concave face makes contact with a limiting piece so that the cam arm can stop rotating. According to the scheme, the state before power failure can be continuously kept in an emergency, and the working stability of the equipment is improved.

The invention provides a door opening mechanism for kitchen equipment, the kitchen equipment and a control method of the kitchen equipment, and the door opening mechanism comprises a mounting seat assembly, a door opening mechanism and a door opening mechanism, the sliding block assembly is provided with a second sliding groove, and the sliding block assembly and the mounting base assembly are in sliding connection through cooperation of the second sliding groove and the first sliding rail; the driving motor is fixed on the mounting seat assembly; the cam is in transmission connection with the driving motor and the sliding block assembly, the cam is driven by the driving motor to rotate so as to drive the sliding block assembly to slide from the first position to the second position along the first sliding rail, so that the door body assembly of the kitchen equipment is opened to the first angle from the closed state, and the distance from the second position to the first position is not larger than the stroke of the cam. The door opening mechanism of the kitchen equipment is simple in structure and low in cost.

The utility model discloses a brake cam rotating shaft, which relates to the technical field of cam shafts and comprises a cam rotating shaft component which comprises a cam part, a cylindrical shaft positioning part fixedly arranged at the lower end of the cam part and a rocker arm embedding part fixedly arranged at the bottom end of the cylindrical shaft positioning part. The center of the cylindrical shaft positioning part is provided with an inward-concave oil lubricating groove unit, the oil lubricating groove unit is of a ladder-shaped inward-concave structure, the rocker arm embedding part comprises an upper embedding part and a lower embedding part which are arranged in a mirror image mode, a stress bearing part is fixedly arranged between the upper embedding part and the lower embedding part, the upper embedding part and the lower embedding part each comprise a limiting boss, and the limiting bosses are arranged on the upper embedding part and the lower embedding part. Embedded tooth blocks are evenly distributed on the outer edge of the limiting boss and are of a ladder-shaped outwards-protruding structure. By improving the lubricating oil groove units, the lubricating effect is enhanced, and friction is reduced; the stress bearing part is optimized, and the stress is uniformly dispersed to improve the stress resistance of the structure; the design of the rocker arm embedding part is improved, and the assembling fixity and the safety of the brake are improved.

The camshaft with the good durability comprises a camshaft body, a first threaded rod is arranged on the outer surface of the lower end of the camshaft body, a threaded lantern ring is arranged at the lower end of the camshaft body, and an adjusting mechanism is arranged between the camshaft body and the first threaded rod. The adjusting mechanism comprises an inserting rod, key rods, a threaded groove, an inserting groove, a key groove, a second threaded rod, a threaded hole, a groove and a rotary knob, the inserting rod is fixedly installed in the middle of the outer surface of the upper end of the first threaded rod, the two sets of key rods are located on the two sides of the outer wall of the inserting rod correspondingly, and the threaded groove is formed in the middle of the outer surface of the upper end of the inserting rod; the slot is formed in the middle of the outer surface of the lower end of the cam shaft. According to the cam shaft with the good durability, the first threaded rod can be conveniently assembled, disassembled and replaced, the first threaded rod can be conveniently limited and fixed, the utilization rate of the cam shaft is increased, resource waste is reduced, the durability is good, and better use prospects are brought.

An electric device has a driveshaft with at least one stator cylinder positioned between opposing, curvilinear shaped cams mounted on the driveshaft, where the center axis of the stator cylinder is parallel with but spaced apart from the driveshaft axis. A magnet assembly is disposed in each end of the stator cylinder, with one magnet assembly engaging one cam and the other magnet assembly engaging the other cam. Each magnet assembly includes a cam follower that can move along a curvilinear shaped cam. A magnet slide arm attached to the cam reciprocates magnets carried on the magnet slide arm through electromagnetic windings disposed around the stator cylinder. An electrical input delivered to the windings can reciprocate the arm, driving the cams to rotate the driveshaft. Alternatively, rotation of the driveshaft can be used to reciprocate the arm to induce electric current in the windings.

The purpose of the present invention is to increase the pressure of fuel while reducing an increase in the maximum lift amount of a cam and deterioration of a fuel injection ability. This cam for use in a fuel injection pump that increases the pressure of fuel supplied into a fuel supply chamber by an axial movement of a plunger. The cam includes a first cam surface that causes an increase rate of an axial speed of the plunger when the cam rotates at a constant speed, in a pre-stroke period until the plunger increases the pressure of the fuel in the fuel supply chamber, to be a first increase rate, and a second cam surface that causes the increase rate of the axial speed of the plunger when the cam rotates at the constant speed, in a pressure increasing period that is a period from a start of increasing the pressure of the fuel in the fuel supply chamber by the plunger, to be a second increase rate, wherein the first increase rate is set higher than the second increase rate.

According to the electronic lock, one end of a spiral spring is matched with a lower shell, the other end of the spiral spring is assembled and connected to the tail end of an unlocking pull rod, it is guaranteed that the initial position of an unlocking rod is fixed relative to the lower shell through the spiral spring, the automatic reset effect of the unlocking rod is achieved, the normal emergency unlocking function is kept, and meanwhile the safety of the unlocking rod is improved. The unlocking rod can be automatically reset after emergency unlocking is completed; besides, in the unlocking process of normal driving of the motor, the position of the unlocking rod is kept unchanged, the unlocking rod cannot move along with the gear transmission mechanism, and the service life of the emergency unlocking mechanism can be prolonged; the inner cam groove in the cam shaft of the cam gear drives the locking connecting rod of the locking piece, circular motion of the gear set can be converted into linear motion of the locking piece, locking and unlocking actions of the electronic lock are achieved, and the upper locking rod can obtain larger ejection force. The invention further discloses the cam gear.

The invention relates to a method for producing a camshaft adjuster (100) for a camshaft of an internal combustion engine, the camshaft adjuster having a rotor (110), a stator (120) and at least one cover (130), wherein the method comprises the following steps: arranging at least one cover (130) on the stator (120) and welding the cover (130) to the stator (120), wherein during the welding a weld seam (140, 141, 142) is formed on at least one large radius (134) and / or on a small radius (133), and wherein the small radius (133) is smaller than the large radius (134). The invention also relates to a camshaft adjuster (100) for a camshaft of an internal combustion engine, the camshaft adjuster having a rotor (110), a stator (120) and at least one cover (130).

To provide a flap actuation system and an associated method.SOLUTION: An example flap actuation system includes a first actuator, a second actuator, a first drive arm coupled to the first actuator and to a flap, a second drive arm coupled to the second actuator and to the flap, a first cam, and a first output shaft. The first cam is to couple to the first drive part so as to enable the first actuator to actuate the flap via the first drive arm. The example flap actuation system also includes a second cam and a second output shaft. The first cam is to be uncoupled from the first drive arm in response to a failure of the first actuator. The second actuator is to actuate the flap via the first drive arm and the second drive arm in response to the failure of the first actuator.SELECTED DRAWING: Figure 1

The invention relates to a method for mounting at least two functional elements (1, 1a, 1b) on a camshaft tube (2) of a camshaft (3) by means of a thermal joining process. The essential element of the invention is that - that a first functional element (1, 1a) is heated and slid onto the camshaft tube (2) in the correct position and held until it is fixed on the camshaft tube (2) by means of a thermal joining fit, - that at least part of a section (4, 4a) of the camshaft tube (2) pushed through the first functional element (1, 1a) is cooled by means of a cooling device (5), - that a second functional element (1, 1b) is heated and pushed onto the camshaft tube (2) in the correct position over the cooled area (4, 4a) and held until it is fixed on the camshaft tube (2) by means of a thermal joining fit.

The door closer with the large door opening angle comprises a shell, a spring, a cam shaft, a piston, a first idler wheel and a second idler wheel, the spring, the cam shaft and the piston are all located in the shell, the two ends of the cam shaft penetrate through the piston and then stretch out of the shell, and the first idler wheel and the second idler wheel are both installed on the piston and located on the two opposite sides of the cam shaft. One end of the spring abuts against the inner wall of the shell, the other end of the spring abuts against the piston, and the piston is of an integrally-formed structure. By means of the integrally-formed structure of the piston, when the cam shaft rotates and pushes the piston to move, the piston can integrally move, only a reset spring needs to be installed on one side, a spring does not need to be installed on the other side of the piston, and therefore the structure of the whole door closer can be simplified, and the requirement for the installation space in the whole shell is reduced; the size of the whole shell is reduced, and the door closer is convenient to install.

The present application provides a cam, a wave generator and a harmonic reducer. The outer contour line of the cam includes a first curve, a second curve, a third curve and a fourth curve connected in sequence. When the outer contour line is placed in a plane rectangular coordinate system, the center of the cam is point O. The first curve is located in the first quadrant. The second curve is symmetric with the first curve about the Y-axis. The third curve is symmetric with the second curve about the X-axis. The fourth curve is symmetric with the first curve about the X-axis. The first curve satisfies the equation: #imgabs0#; x is the abscissa and f(x) is the ordinate; p1-p 10 Each satisfies a certain value range. With such a setting, the problem of how to improve the performance of the harmonic reducer in terms of load capacity and service life in the prior art is solved.

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 belongs to the technical field of compressors, and particularly relates to a motion conversion mechanism of a diaphragm compressor. Due to the existence of the row spacing, the axial length of a crankcase is increased, the structure of the compressor is not compact enough, and the reliability of the compressor is influenced due to unbalanced inertia moment generated by moving parts in opposite rows. The invention provides a motion conversion mechanism of a diaphragm compressor. The motion conversion mechanism comprises a cam, the cam is fixed to a main shaft, one side of the cam makes contact with a first sliding block, the other side of the cam makes contact with a second sliding block, the first sliding block is connected with a first piston, and the second sliding block is connected with a second piston. The rotary motion of the main shaft is converted into the reciprocating motion of the piston, meanwhile, no column space exists between the two opposite columns, and the diaphragm compressor has important significance for improving the structural compactness and the operation reliability of the diaphragm compressor.

The invention relates to a method for producing a cam (1) for a camshaft, in which method the cam (1) is finish-forged together with a chamfer (4); the chamfer (4) is not subjected to supplementary processing. In this way, the cam (1) can be produced in a significantly faster and more cost-effective manner, as a troublesome supplementary machining of the chamfer (4) can be omitted.

A method for manufacturing cams for a camshaft is disclosed. The method includes finish-forging the cam with at least one chamfer. The chamfer is not reworked after finish-forging. According to an example. the cam is finish-forged with the chamfer with an angle of 5°≤α≤40° to a cam bearing surface.

The invention relates to the technical field of weaving machine production, in particular to a connecting cylinder and a cam assembly.The connecting cylinder comprises a cylinder body and a plurality of connecting parts, the connecting cylinder is provided with an exposed surface and a built-in surface corresponding to the exposed surface, the connecting parts are arranged on the side wall of the cylinder body, and the built-in surface corresponds to the exposed surface. One surface of the connecting part is flush with the exposed surface; according to the cam assembly, by arranging the connecting parts and the reinforcing ribs, the loading strength of the cam assembly in the operation process is enhanced, and deformation in the working process is effectively avoided; by arranging the outer pressing ring and the bottom pressing ring, the sealing strength of the mounting gap position is enhanced, meanwhile, looseness caused by rotation of the locking piece is avoided, and the operation stability of the cam assembly is guaranteed; and by arranging the thickened edge, the power transmission stability is enhanced while the overall weight of the cam assembly is reduced.

This invention discloses a medical oscillating saw based on an equal-width cam mechanism, comprising a body, a blade, and an equal-width cam mechanism. The oscillating follower has a shaft hole and multiple protrusions evenly distributed around the shaft hole. The body includes a base and threaded upper and lower pressure plates. The base has a through-hole axial stepped hole, and the upper pressure plate has a groove that cooperates with the oscillating follower and the blade. A pressure spring, the base, the oscillating follower, and the blade pass through the upper and lower pressure plates. When the blade is clamped, the pressure spring presses against the stepped surface of the stepped hole in the base and the rod of the lower pressure plate, fixing the blade. A magnetic attraction device is provided between the base and the lower pressure plate; when changing the blade, the attraction force prevents the upper and lower pressure plates from sliding downwards, thus allowing for blade replacement. This medical oscillating saw improves the motion performance of the follower and reduces mechanical wear during high-frequency motion. Simultaneously, the transmission mechanism operates smoothly, significantly reducing vibration, mechanical friction, and impact noise, helping doctors concentrate on surgical procedures.

A processing station for a die necking machine includes a frame, a forming cam arrangement fixedly coupled to the frame, a knockout cam arrangement fixedly coupled to the frame, and a process turret rotatably coupled to the frame. The process turret includes a forming cam follower operatively coupled to the forming cam arrangement and a knockout cam follower operatively coupled to the knockout cam arrangement. One or both of the forming cam arrangement and / or the knockout cam arrangement includes a cam body having a cam surface defining a cam profile, the cam surface configured to be engaged by a cam follower of one of the forming cam follower or the knockout cam follower. The processing station further includes a sensing arrangement for determining a force applied to a portion of the cam surface by the cam follower of the one of the forming cam follower or the knockout cam follower.

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.

The present invention relates to a sliding cam (2) for a sliding-cam camshaft, comprising a carrier tube (23), a first functional element (21) and a second functional element (22), wherein the functional elements (21, 22) are arranged immediately adjacent to one another on the carrier tube (23) and extend in an axial direction over a joining portion (24), wherein the joining portion (24) comprises a first joining region (241) in which the first functional element (21) is secured on the carrier tube (23) by means of a press-fit connection, wherein the joining portion comprises a second joining region (242) in which the second functional element (22) is secured on the carrier tube (23) by means of a press-fit connection, and wherein an undercut (243) is provided between the first joining region (241) and the second joining region (242). The present invention furthermore relates to a sliding-cam camshaft having a sliding cam (2) according to the invention.

The constant-speed constant-flow pump with the vortex line cam comprises a pump machine body, material cavities are symmetrically formed in the left side and the right side of the pump machine body respectively, plug bodies are movably arranged in the two material cavities respectively, and the two plug bodies are fixedly connected through a connecting piece; the main shaft is rotatably arranged in the horizontal through hole of the connecting piece, and one end of the main shaft extends to the outside of the pump machine main body and is connected with the driving mechanism; two vortex line cams are arranged on the main shaft in the axial direction, contact pieces corresponding to the two vortex line cams are arranged on the left side and the right side of the main shaft respectively, and the main shaft drives the two vortex line cams to make alternate contact with and be separated from the corresponding contact pieces in the constant-speed rotating process so as to drive the two plug bodies to make continuous constant-speed linear reciprocating motion. Therefore, the constant flow pump can supply slurry to an external sand mill at continuous and constant flow, pulse pressure is prevented from occurring in the slurry supply process, the ball leakage phenomenon is avoided, and the quality of the slurry discharged by the sand mill is guaranteed.

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).

The present invention provides a camshaft, a wave generator, a harmonic reducer, and a robot. One camshaft includes a shaft body. Along the axial direction of the shaft body, the outer contour of the camshaft includes a first cam outer contour segment and a second cam outer contour segment. The major axis of the first cam outer contour segment is equal to the major axis of the second cam outer contour segment, and the minor axis of the first cam outer contour segment is smaller than the minor axis of the second cam outer contour segment. According to the camshaft, wave generator, harmonic reducer, and robot of the present invention, a first cam outer contour segment line and a second cam outer contour segment line are provided along the axial direction of the shaft body. Because the minor axis of the second cam outer contour segment line is larger than the minor axis of the first cam outer contour segment line, the camshaft has different gear tooth meshing ranges, which can compensate for the reduced stiffness of the flex spline and rigid spline teeth due to wear.

The utility model belongs to the technical field of cam driving devices, and discloses a cam mechanism, a jacking mechanism and a jacking transfer machine. The first cam is arranged on the rotating part in a sleeving manner, and a first positioning hole is formed in the first cam; the second cam is arranged on the rotating part in a sleeving manner, and a second positioning hole is formed in the second cam; the connecting piece comprises a first connecting section and a second connecting section which are arranged in the first direction, the first direction is parallel to the axial direction of the rotating piece, the first connecting section is in interference fit with the first positioning hole, and the second connecting section is in interference fit with the second positioning hole, so that the center line of the first positioning hole coincides with the center line of the second positioning hole. According to the cam mechanism, the jacking mechanism and the jacking transfer machine, the technical problem that the installation error of the relative positions of the two cams at one end of the jacking transfer machine is large can be solved.

The present invention discloses a high-frequency fixed-angle smooth compensation cam structure, a design method and a rotating mechanism. The present invention adopts eight identical cam mechanisms to reduce the input rotational speed by eight times. Aiming at the transition process of high-frequency stops, the purpose of reducing the acceleration of the entire device's repeated stops is achieved. For the compensation method of vibration jitter of high-frequency stop devices, in the linear rising section curve of the intermittent motion cam curve, a cam curve design of composite sine + fixed linear slope is adopted, and its linear slope is equal to the interpolation rotational speed to achieve the stop purpose of video imaging; for the descending section of the cam curve, a cam curve design of reducing acceleration and deceleration is adopted to reduce the acceleration peak value of the entire device's repeated stops and achieve vibration compensation for interpolation rotation.

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.

The invention relates to a laser welding method for joining a non-sintered material to a sintered material, which method comprises the following steps: providing a first component (2) made of a non-sintered material, providing a second component (3) made of a sintered material, arranging the first component (2) and the second component (3) along a contact plane (5) to generate a joint (8), applying a laser beam (11) to a first joining region (6) of the first component (2) in the region of the joint (8) to melt the first joining region (6) to a melt, melting a second joining region (7) of the second component (3) in the region of the joint (8) by means of the melt of the first joining region (6), and cooling the joint (8).