8 results about "Dashpot" patented technology

Tugger line system (3) for stabilization of a load suspended in an offshore crane system, comprising: a tugger line (5) to be engaged with the load (L); a winch (6) fixed or fixable in the offshore crane system (4) and configured to reel the tugger line in or out from the winch so as to vary a working length of the tugger line; and a damper assembly (8) engaged or engageable with the tugger line between the winch and the load, wherein the damper assembly, when engaged, is configured to passively attenuate fluctuations of tension in the tugger line, said fluctuations being induced by movement of the load with respect to the winch.

Mailbox flap assembly wherein the mailbox (A1) has a front-facing insertion opening (A2) and an inside of the mailbox (A3), comprising a support body (30), a first swivel arm (10), a second swivel arm (20), a drop flap (40) and a spring assembly, wherein the support body (30) is assigned to the insertion opening (A2) and is arranged for fixed attachment to the inside of the letterbox (A3), and has a first pivot bearing receptacle (31) and a second pivot bearing receptacle (32) with a common pivot axis (33), wherein the first pivot arm (10) is assigned to the first pivot bearing receptacle (31) and has a first bearing section (11) and a first fastening section (12), wherein the first bearing section (11) is pivotably arranged about the first pivot bearing receptacle (31) and the first pivot bearing receptacle (31) and the first bearing section (11) together form the first pivot bearing (13) and wherein a rotation damper (50) is associated with the first pivot bearing (13), wherein the first fastening section (12) is connected on the inside to a drop-in flap (40) at its first end section (41), wherein the second swivel arm is assigned to the second swivel bearing receptacle (32) and has a second bearing section (21) and a second fastening section (22), wherein the second bearing section (21) is pivotably arranged about the second pivot bearing receptacle (32) and the second pivot bearing receptacle (32) and the second bearing section (21) together form the second pivot bearing (23) and wherein a spring assembly is assigned to the second pivot bearing (23), wherein the second fastening section (22) is connected on the inside to the second end section (42) of the deposit flap (40), wherein the spring assembly is designed for a locking preload and comprises a torsion spring (60), a spring attachment (70), a lateral retaining plate (80) and a clamping plate (90), wherein the torsion spring (60) has a helical body (63), a first anchor arm (51) which engages the second pivot arm (20), and a second anchor arm (62), wherein the helical body (63) is arranged coaxially to the pivot bearing axis (33), wherein spring attachment (70) corresponds to the second pivot bearing receptacle (32) and together with it radially encompasses the helical body (63), wherein the lateral retaining plate (80) is arranged axially on the outside of the second pivot bearing receptacle (32) and has a support pin (81) which is arranged concentrically in the helical body (63), wherein the clamping plate (90) is detachably connected to the second pivot bearing receptacle (32) and has a plurality of lateral receiving slots (91) for a variable arrangement of the second anchor arm (62) of the torsion spring (60).

The utility model discloses a luggage with a protection function, and relates to the technical field of luggage. The luggage comprises a luggage body, protective frames are mounted on two sides of the bottom of the luggage body, two moving wheels are mounted at the bottoms of the two protective frames, contraction assemblies are arranged between the two moving wheels and the protective frames, and protective assemblies are arranged on two sides of the bottoms of the two protective frames and the luggage body. The movable wheels can be stored in the protection frame through the contraction assembly, the movable wheels can be prevented from protruding and being damaged when the luggage is carried, the damper and the buffer spring in the protection assembly act together, and when the luggage passes through an uneven road surface or goes up and down steps, the movable wheels can be prevented from being damaged. The impact force on the outer wall of the lower part of the luggage from the raised part of the ground or the step edge is effectively buffered, the surface of the luggage is prevented from being scratched or damaged, the service life of the luggage is prolonged, and the durability of the product is improved.

The present application relates to the technical field of space robot, in particular to a kind of three degrees of freedom soft docking joint, including transmission mechanism, damping buffer component and sensing component.The transmission mechanism includes clutch, cross shaft structure, Z-axis rotating shell, Y-axis rotating shell etc.;Damping buffer component includes rotary magneto-rheological damper and torsional spring mechanism etc.;Sensing component includes encoder etc.The soft docking joint mainly utilizes damping buffer component to control the flexibility of docking mechanism, according to operation task to realize space six-dimensional momentum unloading, to realize the soft docking of space operation.

The utility model provides a balance mechanism, a test bench and a test system, the number of balance bases is configured to be a plurality, the assembly top surfaces of all the balance bases are located in the same plane, the number of balance frames is configured to be a plurality, each balance frame is connected with at least two balance bases, and the balance bases are located in the same plane. Each balance frame comprises at least two connecting parts and at least one concave part which are connected, the connecting parts of the balance frames are configured to be used for being connected with the assembling top faces of the balance bases, and each concave part of the balance frames is located between every two adjacent balance bases. Balance assistance is formed through balance base points formed by the multiple balance bases at different positions in the annular distribution track, it is guaranteed that the movement assembly of the power mechanism reciprocates accurately along the movement track in the high-speed movement process, movement deviation generated when the movement speed of the movement assembly is too high is prevented, and the service life of the power mechanism is prolonged. Aiming at the characteristics that the damping of the CDC damper is continuously adjustable and the adjusting speed is high, stable test conditions are provided, and higher test requirements are met.

The invention provides a crane lifting capacity monitoring and limiting method and system based on multi-sensor collaboration, and relates to the technical field of engineering machinery, the method comprises the following steps: collecting operation condition data of a crane; based on the winch output shaft torque, the winch rotating speed and the part relative displacement data, a first-order dynamics diagnosis model is constructed, so that the first-order dynamics diagnosis model outputs winch output pulling force, the object lifting speed and the accelerated speed; calculating the real-time mass of the object lifted by the crane according to the output tension of the winch, the speed of the lifted object, the acceleration and the dynamic balance equation; and judging whether the real-time mass is within a preset lifting capacity permissible range or not, and if the real-time mass is out of the preset lifting capacity permissible range, sending a regulation and control signal to a hydraulic damper of the crane so as to regulate the operation state of the object lifted by the crane. According to the invention, the response timeliness and the operation stability of crane control can be improved.

The utility model relates to mechanical engineering technical field discloses anti -toppling cosmetic packing buffering conveyor, including support, a plurality of fixed blocks and conveyer belt, the outer wall of conveyer belt is provided with hierarchical buffer mechanism, the outer wall of conveyer belt is provided with fixed establishment, the front and back sides of the bottom of support are all fixedly connected with vertical board, the bottom of vertical board is provided with moving mechanism, the top of support is provided with conveying mechanism, the top of support is provided with adjusting mechanism, hierarchical buffer mechanism includes a plurality of base, the bottom of a plurality of base is all slidingly connected in the outer wall of conveyer belt. In the utility model, after putting the cosmetic into the metal frame, the rigid grid is buffered with damper and is evenly distributed pressure, the miniature air bag adjusts the shape according to the demand, and fills the gap, the antiskid corrugation on the surface of silica gel plate increases the friction, and the stability when packing the cosmetic is improved.

The application discloses a kind of excavator oil consumption efficiency simulation test method and its testing device, which belong to the technical field of engineering machinery.It solves the defects of easy wear bucket lever and poor test accuracy in the prior art of traditional excavator oil consumption test.The main structure includes vehicle electronic control unit VECU, damper, boom gyroscope, bucket gyroscope, stick gyroscope, upper frame rotation center gyroscope, simulated weight block and oil consumption instrument, the vehicle electronic control unit VECU is respectively connected with boom gyroscope, bucket gyroscope, stick gyroscope and upper frame rotation center gyroscope, simulated weight block is installed on stick, oil consumption instrument is installed on excavator, and oil consumption instrument is respectively connected with engine oil inlet, oil return and fuel tank oil inlet, oil return pipeline.The application is mainly used on excavator and other engineering machinery.