4results about How to "Solve partial wear" patented technology

The utility model discloses a valve seat sealing ring capable of adjusting sealing performance, which relates to the technical field of valve seat sealing rings, and aims to solve the technical problem that the valve seat sealing ring cannot be adjusted according to medium pressure fluctuation or working condition change at present, the valve seat sealing ring comprises a valve body, the inner wall of the valve body is provided with thread grooves which are axially distributed, and the inner wall of the valve body is provided with a thread ring in a threaded manner; an adjusting ring is fixedly installed in the threaded ring, a sealing ring is installed on the screwing-in face of the adjusting ring in a nested mode, and elastic fins are evenly distributed in the adjusting ring in the circumferential direction. The adjusting ring is driven by the threaded ring to move axially, the compression amount of the sealing ring is adjusted by combining the stepped clamping structure of the adjusting clamping block and the adjusting clamping groove, after the sealing ring is damaged, the compression amount of the sealing ring can be continuously adjusted by rotating the adjusting ring, the sealing ring does not need to be replaced immediately, emergency use is facilitated, and the service life of the sealing ring is prolonged. The problem that the current sealing ring needs to be replaced immediately after being damaged, and continuous operation of a system is affected is solved.

This utility model discloses a vertical high-pressure plunger pump, including a cylinder body. One-way inlet valve 1 and one-way outlet valve 1 are connected to the top two sides of the cylinder body, respectively. One-way inlet valve 2 and one-way outlet valve 2 are connected to the bottom two sides of the cylinder body, respectively. A piston body is disposed inside the cylinder body, and an oil seal is bolted to the top of the cylinder body. This utility model, by installing one-way inlet valve 1 and one-way outlet valve 1 at the top of the cylinder body, and one-way inlet valve 2 and one-way outlet valve 2 at the bottom of the cylinder body, enables the piston body to achieve two water discharges in one movement cycle. Under the same water discharge volume, the movement frequency of the piston body is reduced, thereby extending the service life of the plunger pump. By designing the plunger pump vertically, the problem of uneven wear caused by gravity during horizontal piston body movement in existing technologies can be effectively solved, further extending the service life of the plunger pump. Furthermore, it achieves the effect of no uneven wear and complete oil-water separation in vertical plunger pump operation.

The invention discloses a synchronous regulation and control type bridge swivel construction intelligent control system and a construction method.The system comprises a swivel construction device, a swivel monitoring module and a swivel control module, and the swivel construction device comprises an annular friction disc, a guide supporting device and an annular guide rail arranged on a bridge body support bearing platform; the annular friction disc is coaxially sleeved on the periphery of the axle body support turntable, a friction liner is arranged on the inner wall, and a gear ring is arranged on the outer wall and is driven by an electric driving device; the guide supporting device is arranged at the bottom of the annular friction disc, the lower end of the guide supporting device can slide along the annular guide rail, the rotation monitoring module monitors the rotating speed of the annular friction disc and the rotating disc in real time, and the rotation control module regulates and controls the electric driving device according to the obtained rotating speed. Uniform bearing and low-friction driving are combined through the annular friction disc, synchronous and accurate regulation and control of the rotating speed of the bridge body are achieved through PLC intelligent control, and the problems of dynamic balance keeping, posture real-time and accurate control and the like of large-tonnage bridge body rotating construction are effectively solved.

The invention relates to the technical field of bearings, and discloses an adjustable-center sliding bearing assembly which comprises a bearing support forming an external supporting structure of the assembly. The bearing seat unit is at least partially accommodated in an inner cavity defined by the bearing support; the sliding bearing is mounted on the bearing seat unit, and an inner hole of the sliding bearing is used for accommodating and supporting a rotating shaft; the elastic aligning mechanism is arranged between the bearing support and the bearing seat unit, and is configured to provide elastic support and allow the bearing seat unit to deflect at multiple angles relative to the bearing support; the sphere center of the spherical matching pair is positioned on the axis of the sliding bearing; and the spherical matching pair and the elastic aligning mechanism act synergistically to jointly support the sliding bearing so that the sliding bearing can conduct self-adaptive angle deflection around the sphere center. Through collaborative design of the elastic aligning mechanism and the spherical matching pair, self-adaptive angle deflection of the sliding bearing is achieved, shaft system misalignment is accurately compensated, and the problem of eccentric wear is thoroughly solved.