39results about How to "Vibration resistance" patented technology

The invention relates to a wiper installation (1) which is easy to install and can be fixed on the body without screws. For this purpose, both on the wiper installation and on the vehicle a respective plate-shaped area (15, 16) having a throughbore (17, 18) is provided. A clamp lock (20) comprises a tie bolt (21), insertable through the bores (17, 18), and a tension lever (22) which is rotatably received in its head portion (26). Said clamp lock (20) is made of a plastic material by multi-component injection molding as a one-part piece with a tension lever (22) rotatably disposed on the tie bolt (21).

The invention discloses an excavation tooth fixing method and system, and the method at least comprises the steps: installing a lock body in a lock body accommodation hole, and enabling the lock body to be installed on a tooth holder in a non-rotating manner; moving the bucket tooth, and inserting the nose part of the tooth holder into the inner cavity of the bucket tooth; the lock pin is inserted into a lock pin through hole in one side of the bucket tooth and is initially positioned to ensure that the concave slide way is located at the corresponding position of the elastic lock head; the lock pin penetrates into the pin hole and reaches the lock pin through hole in the other side, the elastic lock head moves to the position beside the concave lock position along the concave sliding way, the middle section of the lock pin is wrapped by the lock body, and the pin ends at the two ends of the lock pin are placed in the lock pin through holes. Rotating force is applied to the end of the lock pin to enable the lock pin to rotate by a certain angle relative to the lock body, the elastic lock head is clamped into the concave lock position from the concave slide way, the lock pin and the lock body are limited, and then the bucket tooth and the tooth holder are fixed; the invention has the advantages of simple and convenient assembly, more reliable and stable connection strength, influence on the bucket tooth strength, and capability of resisting vibration and impact in the excavation tooth operation process.

A honeycomb sandwich composite material structure is widely used in the fields of high speed trains, aviation, space flight and the like in recent years because the structure per se has very high specific strength, specific stiffness and structural function designability. Although the structure has certain damping and vibration reducing effects, the loss factor of the structure is still low. The manufacturing technology of the honeycomb sandwich structure is combined with powder impact damping and vibration reducing technology, powder is put into a cell element of the honeycomb sandwich structure in a certain filling ratio and powder micro-particles are sealed in the honeycomb sandwich structure (specifically shown in figure 1) by using upper and lower coverings, so the vibration energy of the structure is dissipated by fully using the impact, collision and friction of the powder in a mechanical vibrating process, the resonance peak of the structure is restrained (specifically shown in figure 2) and the aim of improving the dynamic performance of the integral structure is fulfilled. Compared with a conventional honeycomb sandwich composite material structure, the novel structure has wide application range and aging and falling resistance, and is particularly suitable for the fields of aviation and space flight with severe environments.

The invention discloses a pedestrian prestress cable truss bridge in a mountainous rural area. The pedestrian prestress cable truss bridge in the mountainous rural area comprises a cable truss, cable towers, concrete anchors and a bridge deck system which is connected with bridge deck cables; the cable towers and the concrete anchors are arranged at two ends of the cable truss; the cable truss comprises the bridge deck cables, main ropes and hanging rods; the main ropes and the hanging rods are hung above the bridge deck system; the bridge deck system comprises a plurality of beams which are arranged in a parallel mode; the adjacent two beams are connected through a plurality of longitudinal beams; two ends of the beams are connected with the main ropes through the hanging rods; the bridge deck cables which are corresponding to the main cables are arranged at the bottom of the beams; two ends of the bridge deck cables and cable tower foundations which are arranged at two ends of the cable truss are anchored. According to the pedestrian prestress cable truss bridge in the mountainous rural area, the traditional pedestrian cable truss bridge is changed into a spatial cable truss force bearing structure, the bridge deck cables are in upwarpping linear shapes due to the handing rod adjustment, primary stress is applied, so that the whole bridge has good integrity, stiffness and stability against overturning.

The invention discloses a method for assembling small-scale drilling equipment for slope climbing. The equipment includes a climbing trolley, an operating platform arranged on the climbing trolley, and a rock bolt rig arranged on the operating platform. The assembly method is as follows: 1) Install front and rear axle wheels at the end of the frame; 2) Assemble steel pipe members to form a fence, and lay panels on the frame to form an operating platform; 3) Install a crane on the frame. 4) installing the brake system; 5) fixing the rock bolt rig 1 on the operating platform 2 by using a U-shaped connector. According to the different inclination angles of the slopes, the present invention can select different rods for free assembly, so as to meet the needs of practical engineering. Since the present invention is equipped with a special brake system, the problem that the drilling rod shakes and breaks due to the up and down swing of the platform during drilling is effectively solved. The invention is especially suitable for emergency rescue work after collapse of landslides and foundation pits, and is convenient, quick and easy to operate.

The invention discloses a dustproof frost-proof optical telescope system in direct contact with atmosphere. The telescope system comprises a telescope, annular ion tuyeres, a high-pressure generator and a cleaning drying device; the annular ion tuyeres are respectively arranged in a plurality of symmetric directions above a barrel of the telescope, the high-pressure generator is connected with the annular ion tuyeres, the high-pressure airflow passing through the annular ion tuyeres is ionized through the high-pressure generator to generate a large amount of positive and negative ions which are rapidly blown to the telescope together with the airflow along the barrel wall of the telescope, the positive and negative ions are close to an arc surface of the telescope and concentrated on the centre of the telescope to finally form uniform and steady upward airflow; the dry and clean air generated by the cleaning drying device is used as ionization air of the annular ion tuyeres. The telescope can work directly in the air; therefore, the detection efficiency of the telescope is improved, weak vibration is resisted, and the adaptability of the optical laser radar in a special weather condition is improved.