66results about "Cams" patented technology

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 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 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.

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.

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.

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.

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 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.

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 method for mounting at least two functional elements (1, 1a, 1b) on a camshaft tube (2) of a camshaft by means of a thermal joining method. According to the invention, it is essential for the invention that a first functional element (1, 1a) is heated, and the first functional element is pushed onto and held on the camshaft tube (2) in an azimuthally correct manner until the first functional element is fixed to the camshaft tube (2) by means of a thermal joining fit, according to the invention, at least a part of a region (4, 4a) of the camshaft tube (2) that is pushed through the first functional element (1, 1a) is cooled by means of a cooling device (5), a second functional element (1, 1b) is heated, and the second functional element is pushed onto and held on the camshaft tube (2) via the cooled region (4, 4a) in an azimuthally correct manner, the second functional element is fixed to the camshaft tube (2) by means of a thermal engagement.

To provide a wave gear device which includes a small-sized compact mechanism capable of retaining an assembly state of components, and is reduced in an installation space.SOLUTION: A wave gear device 1 includes three components of an internal gear 2, a cup-shaped external gear 3, and a wave generator 4, and a temporary fixing jig 9. The temporary fixing jig 9 is fastened and fixed by a temporary fixing bolt 10 to an output shaft 6 fixed to the external gear 3, and is fastened and fixed by a temporary fixing center bolt 11 to an input shaft 5 fixed to a cam plate 41 of the wave generator 4. The temporary fixing jig 9 is engaged with the output shaft 6 and the input shaft 5 to hold an assembly state of the three components 2, 3, 4. The wave gear device 1 does not require positioning work of the three components in mounting work on a motor. Since the temporary fixing jig 9 is removed from the wave gear device 1 after the wave gear device 1 is mounted on the motor, an installation space of the wave gear device 1 can be saved.SELECTED DRAWING: Figure 1

The invention relates to a connection device (1) for thermally connecting a camshaft component, in particular a cam (3), to a shaft (2). The connecting device (1) comprises a receiving part (4) which can be adjusted in the axial direction (A) and is used for receiving and axially moving the shaft (2). Furthermore, the connecting device (1) comprises a base (5) extending transversely to the axial direction (A), on which base at least two component holders (6a-6d) are arranged, each for aligning and holding at least one camshaft component (3) to be connected. Each component holder (6a-6d) can be adjusted between an assembly position (M1-M4), in which the camshaft component (3) can be assembled on the component holder (6a-6d), and a connection position (F), in which the camshaft component (3) held by the component holder can be thermally connected to the shaft (2). When the component holder (6a-6d) is in the connection position, the shaft (2) can be axially passed through the camshaft component (3) in the connection position (F) by means of the adjustable receptacle (4) for thermal connection. In this case, the mounting positions (M1-M4) of the at least two component holders (6a-6d) are arranged at a distance from one another.

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.

The invention relates to a joining device (1) for thermally joining camshaft components, in particular cams, (3) to a shaft (2). The joining device (1) comprises a receptacle (4) that is adjustable along an axial direction (A) for receiving and axially moving the shaft (2). The joining device (1) further comprises a base (5) that extends transversely to the axial direction (A) and on which at least two component holders (6a-6d) are arranged, each for aligning and holding at least one camshaft component (3) to be joined. Each of the component holders (6a-6d) is adjustable between a mounting position (M1-M4), in which the camshaft component (3) can be mounted on the component holder (6a-6d), and a joining position (F), in which the camshaft component (3) held by the component holder can be thermally joined to the shaft (2).When the component holder (6a-6d) is in the joining position, the shaft (2) can be guided axially through the camshaft component (3) located in the joining position (F) for thermal joining by means of the adjustable holder (4). The mounting positions (M1-M4) of the at least two component holders (6a-6d) are arranged at a distance from one another.

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.

A gear box having a carburized shaft and steel bearing assembly. The bearing includes an inner-race and an outer-race. The shaft includes a distal end surface extending perpendicularly from a shaft faying surface and a shaft annular beveled edge. The shaft faying surface is in intimate contact with the inner-race. The inner-race second annular face is coplanar with the distal end surface. The shaft annular beveled edge cooperates with the inner-race faying surface to define a half-V shaped groove. An annular weld joint is formed in the half-V shaped groove thereby joining the shaft to the inner-race. The outer-race includes a first width (W1) and the inner-race includes a second width (W2). W2 is wider than W1 by greater than 0 millimeters (mm) to about 10 mm.

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.

An adjustable stroke device for a random orbital machine has a housing with a central axis and a wall defining a cavity. At least one counterweight is movably disposed at least partially within the cavity. A mounting assembly is disposed at least partially within the cavity. The mounting assembly has a workpiece attachment mechanism. A stroke adjuster couples the at least one counterweight with the mounting assembly. The stroke adjuster enables the at least one counterweight and mounting assembly to move with respect to one another such that a distance between the at least one counterweight and the mounting assembly may be variably adjusted which, in turn, variably adjust a stroke radius of the workpiece attachment mechanism with respect to the central axis of the housing. The stroke adjuster has an adjuster ring and a cam mechanism secured with the adjuster ring.

The utility model discloses a wide belt chain reversing oil pumping unit double-brake device and a brake system using the same. The wide belt chain reversing oil pumping unit double-brake device comprises a limiting starting part, a limiting guiding part and an executing part. The limiting starting part is rotatably inserted into the limiting guiding part, the limiting guiding part and the executing part synchronously rotate and are in axial sliding connection, the limiting starting part is provided with a variable-depth surface in the limiting guiding part, and the executing part is in contact with the variable-depth surface. The limiting starting part and the limiting guiding part are respectively driven by electric control and manual operation, so that manual and automatic operation of the disc brake in the brake system of the reversing pumping unit with the chain is realized, double guarantee is realized, and the failure rate of the brake system is reduced.

The utility model discloses a cam structure for a revolving box of a rice transplanter, which comprises a cam and a cam shaft, the cam is provided with an eccentric hole, and the eccentric hole at least comprises a plane; the cam shaft comprises a shaft rod and a plug fixedly connected to one end of the shaft rod, and at least one plane cutting groove is formed in the end, away from the plug, of the shaft rod in the axial direction. A clamping groove is formed in the periphery of the end, away from the plug, of the shaft rod. Through the design of the eccentric hole and the plane cutting groove of the cam, the eccentric hole and the plane cutting groove are tightly attached along the axial face of the shaft rod, the contact area is increased, the looseness phenomenon of the cam in the operation process is effectively prevented, and the stability and the reliability of the whole cam structure are improved.

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.

The application discloses a uniform-speed constant-flow pump with vortex-line cams, which comprises a pump body, material cavities symmetrically arranged on the left and right sides of the pump body, plug bodies movably arranged in the two material cavities and fixedly connected through connecting pieces, a horizontally arranged main shaft rotatably arranged in a horizontal through hole of the connecting piece, one end of the main shaft extending to the outside of the pump body and connected with a driving mechanism, two vortex-line cams arranged on the main shaft along the axial direction, and contact pieces corresponding to the two vortex-line cams arranged on the left and right sides of the main shaft. In the process of uniform-speed rotation of the main shaft, the two vortex-line cams drive the contact pieces to alternately contact and separate, so that the two plug bodies are driven to continuously and uniformly move linearly, and the constant-flow pump can continuously and constantly supply slurry to an external sand mill, pulse pressure is prevented from occurring in the slurry supply process, the phenomenon of ball leakage is avoided, and the quality of slurry discharged from the sand mill is ensured.