摘要:
Disclosed herein are various dynamometer embodiments in which the devices have a cooling tank comprising cooling fluid, a rotatable drum body disposed over a stator body, and first and second friction disks axially extendable from the stator body such that the friction disks are frictionally engageable with the bases of the drum body. The bases of the drum body can be rotatable friction plates that are coupled via a connection tube to form the drum body.
摘要:
A measurement device includes a probe having a first conductive surface, a second conductive surface, and an insulating layer. The second conductive surface is opposite the first conductive surface and fixed relative to the first conductive surface. The insulating layer is positioned between the first conductive surface and second conductive surface and electrically insulates the first conductive surface from the second conductive surface.
摘要:
A method for monitoring brake torque of an elevator having a motor is provided. The method may engage an elevator brake for a predefined duration, determine a displacement of an output shaft of the motor during the predefined duration, and generate an alert if the displacement exceeds a predefined threshold.
摘要:
The invention relates to a torque metering device for a bicycle-type ergometer, in which ergometer the braking force is steplessly adjustable and in which the rotational movement is compensated by means of a flywheel. The rotational movement of the flywheel is braked by means of a brake mechanism (6, 7) which is pressed against the flywheel and moves limitedly therewith, whereby the movement of the brake mechanism with the flywheel is restricted by means of a spring balance connected to the brake mechanism and the frame structure of the ergometer. The spring force of the spring balance (9) counteracting the movement of the brake mechanism can be read on a scale (10) of the spring balance, which scale is positioned in the frame structure of the ergometer. In order to provide a reliable and easily readable metering device, the device is so constructed that it comprises a gear rack (12) stationarily fixed with respect to the frame structure. A pin member (13) is fastened on the moveable brake mechanism, the free end of which pin member is provided with a cog wheel (14) which is engaged with the gear rack (12). The indicator is formed by a sliding element (15) provided with a cogging which is engaged with the cog wheel so as to effect a movement of the indicator by means of the gear rack (12), the cog wheel (14) and the cogging of the sliding element (15), which movement exceeds that of the free end of the pin member (13). (FIG. 2)
摘要:
The invention relates to a load testing apparatus comprising disks, a rotary shaft connectable with a machine to be tested, disk brakes for braking the disks, and a detector adapted to indicate the amount of load applied to the machine to be tested by detecting the rotational force under pressure with interposition of the supporting members of the disk brakes at the time of braking, thereby enabling to test the characteristics and durability of engines, motors, agricultural machines, decelerators, transmissions, clutches, torque converters, chains, belts, couplings, compressed air or hydraulic motors and the like, as well as to conduct an exhaust gas test and power test of vehicles, particularly enabling to detect the output horsepower applied to the machine to be tested from the rotational force and the number of rotations per minute.Futhermore, the load testing apparatus according to invention is characterized in that it enables to conduct a test starting from zero rotational frequency; it has stabilized properties capable of standing the application of continuous load; the load can be optionally adjusted or varied with simplicity; high torque is applicable at low-speed rotation; and it can be designed compactly.
摘要:
A dynamometer including a housing comprised of first and second parts relatively rotatable about an axis and defining a chamber, at least one brake element within the chamber carried by each part, the brake elements being in adjacency and relatively movable within the chamber, a motor and spring for moving the elements to frictionally engage and disengage the same, coolant inlet and outlet ports to the chamber, and a base mounting the housing for rotation about the axis, a transducer connected to one of the housing parts and the base, and a coupling device connected to the other of the parts and including a chuck for driven engagement with a mechanical power source, the coupling being axially extendable and allowing limited play in the radial direction.
摘要:
Disclosed herein are various dynamometer embodiments in which the devices have a cooling tank comprising cooling fluid, a rotatable drum body disposed over a stator body, and first and second friction disks axially extendable from the stator body such that the friction disks are frictionally engageable with the bases of the drum body. The bases of the drum body can be rotatable friction plates that are coupled via a connection tube to form the drum body.