59results about How to "Avoid overturning moment" patented technology

The present invention provides a scroll-type compressor (1) with an adjustment mechanism (56) for generating overturn-prevention moment, which reduces an overturning moment in a revolution angle region where the overturning moment acting on a movable scroll (26) during its revolution is equal to or more than a predetermined value, whereby pressing force of the movable scroll (26) with respect to a fixed scroll (22) is caused to correspond to the variation of the overturning moment induced by the revolution of the movable scroll (26), so that the revolution movement of the movable scroll (26) is stabilized and compression efficiency of the scroll-type compressor (1) is enhanced.

The invention relates to an indicator apparatus (1) having a ring pointer (2), which is mounted such that it can move in the circumferential direction (5), and having a drive unit (3), which drives the ring pointer (2) in the circumferential direction (5), wherein the ring pointer (2) interacts with a stop (10) in a manner limited in terms of its circumferential movement. Particularly in the case of synchronization, radial disengagement often occurs in conventional ring pointer arrangements, and the aim of the invention is to prevent this. In order to solve the problem, the invention proposes arranging the stop (10) directly next to the drive unit (3). The critical advantage of this is that the tangential force on the ring pointer (2) from the drive unit generates an only small disengagement moment on the ring pointer (2).

A cyclic loading shear tester for observing the mechanical characteristics of interface between earth and structural member is composed of the earth container carriage with organic glass window, normal boundary control unit put on structural plate on the earth, data acquisition system, and hydraulic loading and control system. Its advnatages are high test and measuring precision, and use of digital photography.

The invention discloses a speed limiter and safety gear linkage system based on an elevator. The speed limiter and safety gear linkage system based on the elevator mainly solves the problems that in the prior art, a speed limiter and safety gear linkage system is complex in structure and high in cost, and especially a speed limiter of an elevator without a machine room is inconvenient to install, maintain, inspect and check. The speed limiter and safety gear linkage system based on the elevator comprises a speed limiter, a speed limiter rope, a guiding adjusting mechanism, a lifting winding drum, a linkage mechanism, a lifting steel rope and safety gears, wherein the speed limiter is arranged on the car roof of a lift car of the elevator, the speed limiter rope is wound around the speed limiter, the upper end of the speed limiter rope is fixedly connected with the top of a shaft of the elevator, the lower end of the speed limiter rope is fixedly connected with the bottom of the shaft of the elevator, the guiding adjusting mechanism is used for detecting whether the speed limiter rope is tensioned or not at any time, the lifting winding drum and the speed limiter are arranged in a coaxial mode, the speed limiter drives the lifting winding drum to rotate through the linkage mechanism, and the lifting steel rope is wound around the lifting winding drum. According to the speed limiter and safety gear linkage system based on the elevator, the speed limiter is arranged on the car roof of the lift car of the elevator, one longitudinal speed limiter rope is adopted, the existing speed limiter and safety gear linkage system of a lift car of the elevator is simplified, and the speed limiter and safety gear linkage system of the elevator are optimized and upgraded comprehensively.

The invention belongs to the airframe structure and interior design technology, and relates to a strut structure of a seaplane. Including the front strut (1) and the rear strut (2); the present invention takes into account the bearing capacity of the fuselage structure and the need to overcome the overturning moment when the seaplane takes off, landed and parked on the water, and is designed as a double-beam type The strut structure forms multiple stable triangles in space. The front support is selected at 70% of the length of the front of the buoy's broken step, and the rear support is selected at the position near the buoy's broken step to minimize the additional bending moment when the buoy hits the water. The strut has a simple structure, direct force transmission, good manufacturability and easy processing. The buoys of the target type can be quickly installed on the CCAR23 land-based aircraft.