8results about How to "Suppress roll" patented technology

The tensioning device is used for tensioning a front cylinder chain of the forklift gantry and comprises a front cylinder chain hanging plate arranged on the forklift gantry, the front cylinder chain hanging plate is provided with a hole penetrating through the upper end face and the lower end face, and a sleeve assembly is arranged on the end face, away from the front cylinder chain, of the front cylinder chain hanging plate; one end of the connector is connected with a front cylinder chain, and the other end of the connector penetrates into the sleeve assembly through the hole and is connected with the pull rod assembly; and through a first fastener arranged on the pull rod assembly, the pressing plate assembly is kept in contact with the sleeve assembly, and a limiting block in sliding connection with the pull rod assembly is arranged in the sleeve assembly. The front cylinder chain tensioning device is simple in structure, the tensioning device is additionally arranged, on the premise that an original portal frame structure is not changed, effective tensioning control over the front cylinder chain is achieved, the front cylinder chain tensioning device is suitable for existing equipment transformation and compatible with new product development, and transformation cost and assembly complexity are remarkably reduced.

The invention discloses a large-span suspended ceiling reinforcing and mounting device which comprises bearing keels, a plurality of supporting keels, a plurality of connecting pieces and a plurality of connecting pieces, the bearing keels are arranged at intervals in the width direction of a to-be-suspended ceiling area to form a bearing keel layer, and first hanging rods are arranged on the bearing keels; the framework layer comprises a plurality of main keels arranged at intervals in the length direction of the bearing keels and connected with the bearing keels and a plurality of auxiliary keels connected with the main keels; the two vertical base plates are located at the two ends of the bearing keel layer correspondingly and extend in the width direction of the bearing keel, and meanwhile the two sides of each vertical base plate abut against the corresponding side wall of the to-be-suspended ceiling area and the end of the bearing keel layer correspondingly; at least part of the second suspenders are arranged corresponding to the bearing keels, and inclined rods connected with the bearing keels are further arranged on the second suspenders; the upper portion of the arc-shaped supporting plate abuts against the main keel located on the side and is connected with the main keel and the bearing keel at the same time, and the lower portion of the arc-shaped supporting plate is connected with the vertical base plate. The bearing requirement of the large-span suspended ceiling can be met, and the durability of the large-span suspended ceiling is improved.

This invention provides a method and system for lateral limiting control of cable lifting during suspension bridge cable strand erection. It establishes a complete work cycle, from system installation, cable strand pulling, cable lifting operations to cable strand installation and device dismantling, ensuring the systematic nature and repeatability of the construction. Through a communication control component, all winches on the catwalk gantry are synchronously controlled for simultaneous winding and unwinding. This multi-point collaborative mode effectively suppresses the lateral swaying of the cable strands under wind and other disturbances by utilizing continuous lateral constraints. It solves the technical problem in existing technologies where cable strand lifting and saddle insertion relies solely on the winches at both ends of the main tower to suspend the cable strands. As a large-span flexible structure, the increased span of the cable strands significantly reduces their resistance to lateral wind loads, making them prone to large-amplitude, unintended lateral swaying under strong winds, threatening construction safety and even damaging the cable strand structure.

The present application belongs to the field of rail transit technology, and specifically provides a suspension rail transit turnout reversing system, which comprises a track and a vehicle body, the track is provided with a turnout at a branch, the vehicle body is provided with a control unit, the turnout is arranged on the inner wall of the track on both sides, the vehicle body is provided with a rail changing device, the rail changing device comprises a driving unit, a connecting frame and a rail changing wheel, the connecting frame connects the rail changing wheel on both sides of the vehicle body, so that the rail changing wheel can run on the inner wall of the track and cooperate with the corresponding side turnout; the driving unit is in communication connection with the control unit and drives the connecting frame to act, so that the rail changing wheel can move away from the corresponding side turnout; in the present application, the rail changing wheel is arranged on both sides of the vehicle body, does not occupy the roof space, reduces the height of the vehicle body and the track beam, and reduces the manufacturing cost; when the vehicle body runs on a non-turnout, the rail changing wheels on both sides are close to the inner wall of the track, effectively suppresses the lateral swing, and improves the driving stability; when the vehicle body runs on a turnout, only the rail changing wheel on the side opposite to the turning direction needs to act, and the rail changing wheel on the other side needs to keep cooperating with the turnout, so that the rail can be changed.

The present application relates to oil and gas equipment technical field, provide a kind of offshore emergency blowout preventer, including main body, the first passage is opened in the vertical direction and passes through on the main body, second passage is opened in the horizontal direction in the main body, the second passage is opened with two, two The second passage is symmetrically arranged, the second passage and first passage are interconnected, sealing gate is slidably arranged in each second passage along the length direction of second passage, sealing element is arranged on the side wall of two sealing gates that are close to each other, driving assembly is arranged on the main body, and the driving assembly is used to drive sealing gate to move in second passage, the safety effect of the present application can improve blowout preventer, avoid well backflow.

The application provides a basin type rubber bridge support with a limiting structure and relates to the technical field of supports in bridge engineering, which comprises a support mechanism, vertical damping mechanisms, horizontal damping mechanisms, connecting mechanisms and limiting mechanisms. The vertical damping mechanisms are arranged at four corners of the support mechanism, and the horizontal damping mechanisms are arranged at front and rear ends of the support mechanism. The connecting mechanisms are arranged on top surfaces of the support mechanism, and the limiting mechanisms are arranged at connecting positions of the connecting mechanisms and the support mechanism. The vertical damping mechanisms achieve the buffering and damping functions of the support under vertical load, the horizontal damping mechanisms achieve the damping and energy consumption functions of the support in the horizontal direction, and the limiting mechanisms achieve the detachable and limiting connection between the connecting mechanisms and the support mechanism, so that the technical problems of the poor damping effect, the single limiting function and the inconvenient maintenance of the existing basin type rubber support under complex load are solved.

The invention discloses a multi-cable coupling wave propulsion system based on a rigid wing array and a geometric self-stabilization mechanism. According to the system, a vertical stable reference is obtained through a large-scale water surface frame, a main propulsion wing array is rigidly integrated on the system, and efficient and direct conversion of wave kinetic energy is achieved. A unique four-rope parallelogram mechanism is connected with a low-gravity-center underwater load module to form a geometric self-stabilization system with intrinsic posture recovery capability, so that rolling and pitching are greatly inhibited. The propulsive force of the system is stably transmitted through the quasi-rigid mechanism, and the low-efficiency mode that a traditional wave glider depends on oscillation pulling is eliminated. The core improvement lies in that an active navigational speed controller based on underwater airfoil attack angle adjustment is introduced, and navigational speed closed-loop accurate control is achieved through fine adjustment of system internal force balance. The problems that a traditional wave energy platform is low in efficiency, unstable and uncontrollable in navigational speed are solved, and a self-sustaining wave propulsion solution which is high in stability, long in endurance, intelligent and controllable is provided.

The rice transplanter of the present application is provided with: a seedling support device (50) supported to a machine body (11) in a manner to be located above the machine body (11) and capable of placing seedlings; and a seedling supply device (60) supported to the machine body (11) in a manner to extend from a rear portion of the seedling support device (50) toward a rear portion obliquely downward, and capable of supplying the seedlings placed on the seedling support device (50) to a seedling loading platform (10). A suppression mechanism (98) is provided, which is capable of suppressing the roll of a seedling planting device (5). When the seedling planting device (5) is operated to be raised by a link mechanism (3) to a supply height at which an upper end portion of the seedling loading platform (10) is brought close to a lower end portion of the seedling supply device (60), the roll of the seedling planting device (5) is suppressed by the suppression mechanism (98), and the seedlings can be supplied to the seedling loading platform (10).