48results about How to "Friction adjustment" patented technology

The invention relates to an indicator instrument, which includes indicator module, indicator supporting part supporting the indicator module, the end of which connects to the indicator, bracket and base capable of rotary. The bracket includes upper hinge part connecting to the indicator bracket; a first connector, one end of which connects to the upper hinge part; a bracket of a second connector rotating with the first connector together, one end of which connects to the hinge part; upper hinge part connected by one end of the first connector and one end of the second connector; elastic material, two ends of which connect to the first connector and the second connector. The indicator instrument of the invention can preserve the watching angle of the indicator module even the bracket rotates. Besides, users can rotate the bracket backward easily. The invention can prevent indicator module rotating due to its own weight when the bracket rotates forward, so it is convenient for users.

A displaceable carriage (10) and a linear guide for guiding the carriage, which includes a first guide path slideway (13, 31) and a second guide path slideway (32). To form the first slideway (13, 31), the carriage (10) includes at least one pocket (13), which slides along the first guide path part (31) and can hold lubricant under pressure to create a relieving force on the carriage (10). The second guide path part (32) includes an island-shaped surface to create a frictional force on the carriage (10). A pressure medium held in the at least one pocket (13, 14, 15) creates the relieving force, whereby the first slideway (13, 31) relieves the load on the second slideway (11a, 12a, 12b, 32).

The invention discloses a double-ball dynamic and static transition bridge and a gyro with same. The double-ball dynamic and static transition bridge comprises an outer sleeve, a large ball, a rollingbearing and an adjusting stud are coaxially arranged in the outer sleeve, a thread for connecting with the adjusting stud is arranged at one end of the outer sleeve, a conical opening for limiting the large ball is formed in the other end of the outer sleeve, and a small ball is arranged between the large ball and the adjusting stud and coaxially arranged in an inner ring of the rolling bearing.The transition bridge is simple in structure, convenient to use and applicable to grounds such as polished marbles and ensures that the surfaces of the polished marbles are not recessed when the gyrorotates.

The friction testing device for the friction resistance of the braided fabric surface of the present invention belongs to the friction testing device with simulated actual use friction force in the working state. The horizontal long hole and the longitudinal long hole on the surface of the rack platform are perpendicular to each other; the horizontal long hole is provided with a loading plate, and the longitudinal long hole is provided with a standard brush; the standard brush generates a curved trajectory on the loading plate; The rolling ball of the "door" frame presses the standard brush to generate friction on the loading plate. Each position of the object to be tested is rubbed with the same effect; when rubbing, the friction force changes, and the friction force can be adjusted at any time.

The invention discloses a self-adaptive frictional energy dissipation and vibration reduction device for a bridge structure, which comprises a base, a displacement conversion rack, a displacement amplification component and a frictional energy consumption component. The displacement conversion rack is fixedly installed at the end of the bridge deck beam, and The conversion rack moves in translation with the horizontal vibration of the bridge. Both the displacement amplifying component and the friction energy dissipation component are fixedly installed on the base. One end of the displacement amplifying component is connected with the displacement conversion rack to convert the horizontal vibration of the bridge into the displacement amplifying component. Rotational movement, the other end of the displacement amplifying component is connected to the frictional energy dissipation component to indirectly amplify the displacement of the horizontal vibration of the bridge, and at the same time transmit the rotational movement of the displacement amplifying component to the frictional energy consuming component, and the frictional energy consuming component passes the friction Dissipate energy to realize the braking of the rotational motion of the friction energy-dissipating components, and obtain effective braking under the dissipation of heat energy generated by friction, so that the energy dissipation and vibration reduction of the bridge is good.

The invention discloses an anti-overturning high-tension transmission line iron tower used for solving the problem that an iron tower is prone to overturning. The iron tower comprises an iron tower body and a transition part, and the middle portions of the iron tower body are disconnected and movably connected through the transition part, with buffering and damping functions, on the corner. The transition part comprises a first plate, a second plate and a third plate which are arranged in parallel from top to bottom, wherein the portion between the first plate and the second plate and the portion between the second plate and the third plate are each designed to be a buffering structure with a brake structure. As the lower middle portions of the iron tower are disconnected and provided with the transition part, the portion prone to bending in the iron tower shifts in the horizontal direction in the presence of the transition part, in the shifting process, vibrating energy is consumed through effective friction, vibrating frequency and amplitude are changed, bending is avoided, the method of increasing the use amount of profile steel to improve strength traditionally is changed, and the seismic resistance is improved by 40% without changing the steel amount.

The invention discloses a limb training and recovery device for patients with fractures, which comprises a frame body. A cylinder is installed on the frame body through a rotating shaft. One end of the rotating shaft is provided with a locking buckle. The middle part of the limb fixing plate is provided with a hinge, and the edge of the limb fixing plate is provided with several restraint straps; the buffer pad includes a rubber body, and a cavity is arranged in the rubber body, and a spring is installed longitudinally in the center of the cavity, and the edge of the cavity There are several rubber sheets in contact with each other. The invention can improve the deficiencies of the prior art, and realize good absorption and buffering of vibration while controlling the cost.

The invention discloses an anti-capsizing support of a bridge. The anti-capsizing support of the bridge comprises a first plate, a second plate and a third plate, wherein the first plate, the second plate and the third plate are arranged in parallel from top to bottom. Clamping grooves are formed in the two sides of a second insertion plate vertically. Each clamping groove communicates with a channel through a square hole between the clamping groove and the channel. A movable brake pad is placed in each clamping groove. A tie piece is arranged in the channel. Wedges are arranged on the two sides of the tie piece at intervals and face the same direction, and each wedge makes contact with the movable brake pad in the corresponding position. A threaded hole is formed in the end of the tie piece, and a tension bolt is installed in the threaded hole for tensioning connection. The anti-capsizing support of a bridge is of a pure mechanical structure, and long-term maintenance-free operation can be achieved; and in addition, main friction force happens to friction plates between the insertion plates, the automobile brake pads are used as the friction plates and are free of maintenance in the whole life, and the friction force of the brake pads can be adjusted conveniently through the tension bolt.