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3 results about "Hinge angle" patented technology

A hinge is a mechanical bearing that connects two solid objects, typically allowing only a limited angle of rotation between them. Two objects connected by an ideal hinge rotate relative to each other about a fixed axis of rotation: all other translations or rotations being prevented, and thus a hinge has one degree of freedom.

Pole climbing robot for wind power tower pole

The invention discloses a pole climbing robot for a wind power tower pole, which is characterized in that the robot mainly comprises a robot body, 4-8 pole climbing mechanisms, a snake-shaped swing arm and a movable studio, wherein the snake-shaped swing arm and the movable studio are mounted on one side of the robot body; the robot body is an annular body formed by combining two semicircular cambered bodies or three equal cambered bodies; the diameter of an internal ring of the circular body is matched with the diameter of the wind power tower pole; the pole climbing mechanisms mainly comprise upper foot wheels, lower foot wheels, connecting arms, driving gears, thrust screw rods, nut gears and supporting seats; the upper foot wheels are connected with the lower foot wheels by the connecting arms through wheel shafts; the connecting arms are connected with the thrust screw rods by connecting pin shafts on the connecting arms, and form movable hinges; the 4-8 pole climbing mechanisms are distributed in the circular robot body uniformly; the snake-shaped swing arm consists of three swing arm parts, namely a large arm, a middle arm and a small arm; and the movable studio comprises two paralleled linear guide rails, a walk driving device and an operation room.
Owner:HEBEI UNIV OF TECH

A new type of anti-passage barrier device

This utility model relates to a novel anti-passage barrier device, comprising two upright posts with a scissor-shaped connecting rod between them. A hinge is installed on the right upright post, comprising a first part, a second part, a rotating shaft, and a limiting locking mechanism. The limiting locking mechanism includes a rotating plate and a friction plate. The first part includes a first bushing, and the second part includes a second bushing. Both the first and second bushings are fitted onto the rotating shaft with a gap between them. The thickness of the friction plate is the same as the gap width. When the rotating plate rotates, it can cause the friction plate to engage with or disengage from the gap. When not in use, this utility model can be rotated to be close to a base without affecting passage near the base. The hinge angle is locked to prevent the upright posts and the scissor-shaped connecting rod from being manually rotated, thus achieving a good passage barrier effect. The telescopic rod is inserted into the positioning hole on the scissor-shaped connecting rod, which can also prevent the upright posts and the scissor-shaped connecting rod from being manually folded.
Owner:CENT GRAIN RESERVE ZHENGZHOU DIRECT STORAGE CO LTD

Pressure-adjustable corn compacting device and adjusting method

The present application relates to the technical field of agricultural equipment, and discloses a corn compacting device with adjustable pressure and a regulating method, which comprises an integrated bearing frame, a front lightweight connecting frame and a rear outer movable frame are connected through a first self-adaptive pressure regulating component to form a hinged linkage structure, and a double-wheel cooperative compacting system, the double-wheel cooperative compacting system comprises a pre-compacting wheel which is vertically hung at the bottom of the front end of the lightweight connecting frame through a second self-adaptive pressure regulating component, and the surface of the wheel body of the pre-compacting wheel is provided with spiral flow guide ribs and a variable eccentric counterweight component, the pre-compacting wheel as a front end component has a segmented floating structure (controlled by a floating connecting mechanism) which can actively adapt to ground undulation, so that suspension or impact caused by uneven terrain is avoided, and the main compacting wheel can respond to displacement feedback of the pre-compacting wheel in real time through hinged angle adjustment (controlled by the first self-adaptive pressure regulating component), so that stable ground pressure can be maintained in soft or hard soil areas, and the uniformity and adaptability of compacting operation are significantly improved.
Owner:JILIN ACAD OF AGRI SCI