64 results about "Crank Arm Assembly" patented technology

A pickup reel for a harvesting machine comprising a reel support and a first shaft rotatably supported by the reel support and extending along an axis transverse to the frame. A cam is supported by the reel support and defines a generally endless cam path extending about the first shaft. An arm extends radially from the first shaft and is rotatable with the first shaft. A second shaft is connected to the arm and supports a first tine and a second tine located on opposite axial sides of the cam. A cam follower is engageable with the cam and movable along the cam path. A crank arm assembly is connected between the cam follower and the second shaft. The rotation of the first shaft and movement of the cam follower along the cam path cooperate to cause the tips to move along the tip path.

A stationary exercise bicycle is provided having a frame, a resistance member, a drive assembly, a right pedal, a left pedal, a seat and an adjustable seat mechanism utilizing a rack. Assembly and disassembly of a three piece crank arm assembly is accomplished without requiring the assembling and disassembling of the entire drive assembly. The stationary exercise bicycle also provides a variety of users with an optimum seat position and with a convenient latch mechanism to adjust the position of the seat.

The present invention relates to hose reel carts for handling and storage of flexible hoses, such as garden or air hoses. The hose reel cart is primarily constructed of plastic components having a centrally rotatable spool for winding of the flexible hose, a frame for supporting the spool and a multi-position crank arm assembly allowing the consumer to place the crank handle in a lowered position or a raised position. The crank remotely drives the spool, for winding the hose, through a series of gears located within the crank arm assembly. The device may further include a reciprocating guide assembly that operates during rotation of the spool to rewind the hose into a compact configuration.

The invention discloses a driving mechanism for an isolating switch, comprising a gear transmission assembly, a crank arm assembly and a mounting frame, wherein the gear transmission assembly is a vertical shaft bevel gear transmission assembly comprising a first bevel gear and a second bevel gear; the first bevel gear rotates around a first rotating shaft, and the second bevel gear is driven by the first bevel gear and rotates around a second rotating shaft; the first rotating shaft and the second rotating shaft are vertically arranged; the basic shape of the mounting frame is a rectangular framework formed by combining a front wall, a rear wall, a left wall and a right wall; the crank arm assembly comprises a supporting arm fixed on the second rotating shaft, a transmission arm used fordriving an externally connected operation spindle to rotate and a connecting arm used for connecting the supporting arm and the transmission arm; both ends of the connecting arm are respectively connected with the supporting arm and one end of the transmission arm; and when the first bevel gear rotates, the second bevel gear is driven to rotate so as to further drive the supporting arm to rotate,and the externally connected operation spindle is driven to rotate through the connecting arm and the transmission arm. The driving mechanism is suitable for a high-voltage switch cabinet and can effectively reduce the volume of the switch cabinet.

The invention discloses a tree trunk lateral branch pruning mechanical hand. The mechanical hand comprises an arm frame device and a pruning device, wherein the arm frame device comprises a support seat assembly, a straight arm assembly and a crank arm assembly; the support seat assembly is used for regulating the vertical lifting height; the straight arm assembly is used for regulating the horizontal extending length; the crank arm assembly is used for avoiding tree trunks; the straight arm assembly is connected between the support seat assembly and the crank arm assembly; the crank arm assembly is connected with the pruning device. The mechanical hand is regulated to the position of lateral branches required to be pruned through the arm frame device; then, the lateral branches are tightly clamped and cut by the pruning device; finally, through the combination of the pruning device and the arm frame device, the lateral branches cut from the tree trunks are piled to a defined position;the manual cutting and carrying are not needed in the whole process; safety accidents caused by the manual cutting and carrying are prevented; high safety and reliability are realized.

The invention provides a metal piece manufacturing method and a low-pressure casting forging machine used for achieving the metal piece manufacturing method and belongs to the metal casting technology. The manufacturing process of the method includes a low-pressure casting stage and a forging stage. The low-pressure casting forging machine used for achieving the metal piece manufacturing method comprises a low-pressure casting device, a support, an upper die driving mechanism, a crank arm five-hinge mechanism and a control system. The low-pressure casting device comprises an upper die and a lower die, wherein a die cavity is formed by oppositely combining the upper die and the lower die. A sealing guide face is formed between joint faces of the upper die and the lower die. The support is composed of a lower die installation piece, a driving mechanism installation rack and supporting rods and is of a frame type. The lower die is installed through the lower die installation piece. The upper die is installed through an upper die installation piece. The crank arm five-hinge mechanism comprises a first rotating arm, a second rotating arm, a moving arm and two supporting rotating arms. The first rotating arm is hinged to the corresponding supporting rotating arm, so that a crank arm assembly is formed and respectively hinged to the upper die installation piece and the driving mechanism installation rack. The control system controls the upper die driving mechanism to move. The low-pressure casting and high-pressure forging processes are achieved and strength of a metal piece is improved.

A right crank arm assembly (1) for a bicycle, comprises a right crank arm (5) and at least one front sprocket (10) coupled with the crank arm at at least one coupling portion (44) of the crank arm. The front sprocket (10) has an inner side adapted, in use, to face towards the frame of the bicycle and an outer side opposite the inner side. The assembly (1) comprises at least one first crank arm element (30) which acts in contact with the front sprocket (10) on one of said sides and at least one second crank arm element (35) which acts in contact with the front sprocket (10) on the other of said sides. The contact action of the crank arm elements on the two opposite sides of the front sprocket prevents the twisting deformation of the front sprocket during pedalling. Such a deformation wouldcause a reduction in the transmission efficiency of the right crank arm assembly.

An actuation system for causing movement of a fluid flow diverter. The actuation system includes a drive frame assembly, a crank arm assembly and a ball screw assembly working in combination as an electromechanical device suitable for movement of diverter devices of a wide range of sizes. The drive frame assembly is connected to the diverter. The crank arm assembly is attached to the diverter's diverting component, such as a damper flap. The crank arm assembly is connected to the ball screw assembly such that movement of the ball screw forces pivotal movement of the crank arm and, in turn, the diverter's diverting component. A variable speed motor causes linear movement of a ball screw along a fixed rod, with the crank arm assembly connected to the movable ball screw. A drive lockout assembly ensures that movement of the ball screw occurs only under controlled conditions.

The invention discloses a double-circuit cat head tower and its tower head structure. The tower head structure includes: a first wire cross arm that can expand and contract along its length direction; and a curved arm assembly, which includes a first curved arm and a The second curved arm, one end of the first curved arm is connected to one end of the first wire cross-arm, and one end of the second curved arm is connected to the other end of the first wire cross-arm; the other end of the first curved arm can be opposite to the second curved arm The other end of the arm is rotatably connected so that the first wire cross arm can translate up and down, and the crank arm assembly also includes a first locking mechanism for locking the relative rotational movement of the first crank arm and the second crank arm, or the first crank arm It can be stretched along its length direction and the second crank arm can be stretched along its length direction, so that the first wire cross arm can translate up and down. Movement's second locking mechanism. In the double-circuit cat head tower and its tower head structure of the present invention, the height of the tower head can adapt to different erection requirements.

The invention discloses a mop machine realizing automatic operation. The mop machine is characterized in that gear plates are fixedly and symmetrically connected to two sides of a washing barrel upwards, crank arm assemblies and a transmission mechanism for driving the crank arm assemblies to rotate are connected to the washing barrel, plate type duster cloth is driven by the crank arm assemblies,and the plate type duster cloth works in a manner of mopping the floor outside the washing barrel, rotating to a scrubbing plate in the washing barrel along with the rotation of a crank arm, being soaked in stored water to be scrubbed, or being lifted to the water surface along with the scrubbing plate to be rubbed to be dry. Compared with the prior art, the mop machine realizing automatic operation has the advantages of automatic cleaning for floor mopping and automatic cleaning of a mop, the structure is simple, the operation is convenient and reliable, and the beneficial effects are obvious.

The invention discloses a side-mounted high-voltage vacuum circuit breaker, which includes a base and three poles; an operating mechanism for driving the opening and closing main shaft to rotate is provided on the outside of the base shell; The transmission crank arm on the main shaft of the gate, the reinforced limit plate with a limit slide hole fixed on the top wall of the base, the transmission plate, the upper pin shaft and the lower pin shaft; the lower end of the transmission plate passes through the lower pin shaft and the transmission crank arm Rotationally connected, the upper end of the transmission plate is connected with the bottom end of a corresponding insulating rod through the upper pin shaft; the upper pin shaft is located in the limit slide hole of the reinforced limit plate; The plate drives the insulating pull rod; the operating mechanism drives the opening and closing main shaft to reciprocate; under the cooperation limit of the upper pin shaft and the limit slide hole, the opening and closing main shaft synchronously drives the three insulating pull rods along the up and down direction through the three crank arm components. Reciprocating movement for opening and closing action. The invention can be applied in traditional switch cabinets and ring network cabinets.

A bicycle bottom bracket assembly that reduces the accumulation of dirt and/or corrosive substances inside the shaft extending between the crank arms of the assembly. The bottom bracket assembly includes a shaft having a through-cavity that extends along its longitudinal direction; a crank arm is associated with each end portion of the shaft, and the through-cavity extends unobstructed through the crank arms and the shaft.

The invention discloses a tool for assembling an energy storage component of a circuit breaker. The energy storage component of the circuit breaker is provided with an energy storage shaft on which a first spring crank arm, a first bearing, a cam, a gear assembly, an energy storage crank arm assembly, a second bearing and a second spring crank arm are successively arranged. The tool is provided with a base board. The base board is provided with two supporting boards which are respectively used for supporting the first bearing and the second bearing. The base board is provided with spacing blocks which respectively suppress the first spring crank arm and the second spring crank arm at the sides of the two supporting boards. The base board is provided with a spacing block for suppressing the assembling position of the energy storage crank arm and a block for suppressing the position of the cam between the two supporting plates. The tool for assembling the energy storage component of the circuit breaker has advantages of simple structure, low manufacture cost, accurate and quick assembling of the energy storage component, simple operation and high operation efficiency.

The invention provides a door vane of an elevator door and an unlocking device. The door vane of the elevator door includes a door vane bottom plate, a left blade, a right blade, a lower crank arm assembly and a latch hook assembly. The left blade is installed on one side of the door vane bottom plate in the vertical direction and hinged to the door vane bottom plate through a connecting rod. Theright blade is installed on the other side of the door vane bottom plate in the vertical direction and the upper end of the right blade is hinged to the latch hook assembly and the door vane bottom plate through a rotation shaft. The lower end of the right blade is hinged to the lower bending arm assembly and the door vane bottom plate through a rotation shaft. The upper end of the left blade is provided with a rolling wheel. The latch hook assembly is elastically connected with the door vane bottom plate through a small tension spring. Through the adoption of the technical scheme, an elevatorcar is improved in terms of security and economy, the door vane can gradually replace an existing traditional door vane product, the latest standard requirements and the industry development trend are met and the wide application prospect is achieved; and the door vane of the elevator door is simple in structure, easy to install, low in cost and convenient to maintain.

The invention relates to a crank arm assembly and a power transmission self-locking mechanism using the crank arm assembly. The power transmission self-locking mechanism comprises a guide post which can move up and down in a guiding mode. The guide post is provided with a transmission groove. The crank arm assembly is arranged inside the transmission groove and comprises a power input shaft, a connecting shaft, an installing shaft and a jacking head, wherein the connecting shaft is perpendicularly arranged on the power input shaft, and the jacking head is connected to the installing shaft through a spring and used for being in pushing fit with the upper groove wall of the transmission groove in the guide post in a sliding mode. When the crank arm assembly is located at an extending locking station, the upward force is applied to the upper groove wall of the transmission groove through the jacking head, the downward force is applied to the lower groove wall of the transmission groove through the tail end of the connecting shaft, and locking is conducted on the crank arm assembly in the extending position. When the crank arm assembly is located at a retracting locking station, the upward force is applied to the upper groove wall of the transmission groove through the jacking head, the downward force is applied to the lower groove wall of the transmission groove through the outer peripheral face of the connecting shaft, and locking is conducted on the crank arm assembly in the retracting position. According to the crank arm assembly and the power transmission self-locking mechanism using the crank arm assembly, an additional locking mechanism for locking a crank arm in the prior art is omitted, and the structure is simple.

A bicycle crank arm assembly is provided having at least one axle portion, a crank arm mounted on the at least one axle portion, the crank arm having a coupling seat and the axle portion a coupling portion coupled to the coupling seat, the coupling seat and the coupling portion being shaped so as to make a shape coupling to ensure that the crank arm can transmit a torque to the axle portion. Between the crank arm and the axle portion adhesive material is applied. The shape coupling ensures that the crank arm and the axle portion are integral in rotation, whereas the gluing ensures the sealing of the coupling area against corrosion phenomena. The gluing also ensures a predetermined minimum force limit necessary to disassemble the crank arm assembly. The crank arm assembly has a low overall weight, a simple assembly process, and a suitable resistance to disassembling.