6results about How to "Automatically compensates for wear" patented technology

The present invention relates to a plug valve with elastic automatic compensation seal, including a valve body, a valve cover, a plug body, a valve stem, and a transmission mechanism. The bushing between the valve body and the plug body is composed of a left half bushing and a right half bushing. The left half bushing and the right half bushing have an axial gap in the center line direction of the valve body channel, and a floating seal pair is formed between the bushing and the plug body to automatically compensate for the wear of the seal pair. The conical cylindrical cavity of the valve body can be finely processed to obtain a high-precision inner cavity wall, which solves the problem that the prior art needs to set anti-rotation ribs in the inner cavity but cannot be finely processed, and reduces the precision requirements for the valve body casting. It has the advantages of small opening and closing torque, low requirements for valve body casting precision, convenient processing, and high use pressure.

The utility model relates to the technical field of production equipment, and discloses a lubricating medium smearing device and lubricating medium smearing equipment. The lubricating medium smearing device comprises a mounting module, an elastic connecting base and a smearing assembly. The elastic connecting seat is arranged on the mounting module; the smearing assembly is used for being externally connected with a conveying pipeline for conveying lubricating media. The elastic connecting seat comprises a first mounting part, an elastic connecting part and a second mounting part, the first mounting part is connected with the mounting module, the elastic connecting part is connected with the first mounting part and the second mounting part, and the second mounting part is connected with the smearing assembly. Elastic connection of the smearing assembly is achieved, abrasion and deformation of the smearing assembly in the using process can be automatically compensated, meanwhile, manufacturing errors and installation errors can be made up, and the smearing effect is guaranteed. When the smearing assembly makes contact with a product, the elastic connecting base can absorb impact from the product, a certain buffering effect is achieved, the product and equipment are protected, and the smearing effect is guaranteed.

The utility model provides a steam extraction check valve, and belongs to the technical field of check valves, the steam extraction check valve comprises a valve body, the valve body comprises an inlet flow channel, a valve cavity and an outlet flow channel, a valve rod is transversely fixed in the valve cavity, a valve clack is rotatably arranged on the valve rod, a mounting groove is formed in one end, close to the valve cavity, of the inlet flow channel, and a base ring, a valve seat ring and a fixing ring are arranged in the mounting groove; an elastic sealing ring is arranged between the base ring and the valve seat ring, the outer ring of the elastic sealing ring is closed, the inner ring of the elastic sealing ring is provided with an opening gradually expanding towards the center of the mounting groove, the two side walls of the opening abut against the base ring and the valve seat ring respectively, and an elastic piece abuts against the interior of the opening. The elastic sealing ring with the opening is arranged between the base ring and the valve seat ring, impact energy generated when the valve clack is closed can be absorbed, meanwhile, the elastic sealing ring in the special shape can form more reliable sealing with the two side portions under medium impact, and medium fluid channeling is avoided.

The utility model relates to the technical field of mechanical seals, and discloses a mechanical seal with driving ring sleeves, which comprises a connecting sleeve, movable ring sleeves are fixedly sleeved on the left side and the right side of the connecting sleeve, a static ring is arranged on the left side of the movable ring sleeve on the left side, a shaft sleeve is arranged on the right side of the movable ring sleeve on the right side, and a movable ring is arranged between the left movable ring sleeve and the right movable ring sleeve. The two movable rings are arranged on the left side and the right side, the static ring is fixedly installed on the left side face of the left movable ring sleeve, the joint of the static ring and the left movable ring sleeve is fixedly sleeved with the sealing sleeve, and the shaft sleeve is fixedly installed on the right side face of the right movable ring sleeve. The static ring is tightly attached to the end face of the left movable ring and the end face of the right movable ring is tightly attached to the end face of the shaft sleeve under the action of fluid pressure and elasticity of the elastic sleeve, a main sealing face is formed, fluid leakage is prevented, the elastic sleeve and the connecting spring provide strong elastic compensation force, and abrasion, thermal expansion and other changes of the sealing faces can be automatically compensated; and tight attachment of the sealing surface is kept.

The utility model discloses a main valve structure of high pressure pneumatic cleaning device, including valve body, valve ball, left valve pipe spare, right valve pipe spare, the inside of valve body is provided with valve cavity, valve ball rotation is connected in the inside of valve cavity, the left side of valve body is fixedly connected with left valve pipe spare through flange spare, left valve pipe spare other end is connected with gas pressure system, be provided with pneumatic seal spare in left valve pipe spare, pneumatic seal spare and valve ball left side contact, the right side of valve body is fixedly connected with right valve pipe spare through flange spare, right valve pipe spare other end is connected with cleaning device, be provided with spring seal spare in right valve pipe spare, spring seal spare and valve ball right side contact. The utility model discloses a kind of main valve structures of reliable sealing, effectively improve service life and safety.

The present invention belongs to valve technology, and specifically relates to a floating ball valve with a parallel valve seat inclined surface, comprising a valve body, a valve seat assembly, a ball, a valve cover and a valve stem, wherein the bottom end of the valve stem is connected to the ball, an outlet auxiliary valve seat is installed at the channel outlet of the valve body, and an inlet auxiliary valve seat is installed at the channel inlet of the valve body; the auxiliary valve seat comprises an integrally processed small cylinder and a wedge-shaped cylindrical block, and the end face of the wedge-shaped cylindrical block is a matching inclined surface. The device reduces the difficulty of inclined surface processing and grinding, and improves production efficiency; solves the problem that the inclined surface inclination angle is not limited by the valve seat material; cancels the spring pre-tightening structure between the ball and the valve stem, reduces the valve stem torque, and prevents the ball from not coinciding with the valve body channel axis after the sealing surface is worn.