39results about How to "To achieve the purpose of lubrication" patented technology

The purpose of this invention is to facilitate respective works for assembling, maintaining and inspecting regarding constituent parts of a vehicle. A front wheel 5 which is supported by the front section of the vehicle body 2, a driving unit 24 the front section side of which is pivoted by a pivot 8 extending in the width direction of the vehicle body 2 so that the rear section side may be rockable in the vertical direction, and a rear wheel 10 which is supported by the rear section of the driving unit 24 are provided. The driving unit 24 is equipped with an internal combustion engine 28 for running-driving, a radiator 46 which cools a cooling water 44 for cooling the internal combustion engine 28, and a cooling water tube 76 which communicates the radiator 46 and a water jacket 47 which is formed on the internal combustion engine 28 with each other. When the vehicle body 2 is seen from the side surface, the pivot 8 is arranged above the middle section in the longitudinal direction of the radiator 46, and the whole of the cooling water tubes 74 and 76 are arranged on the front side of the pivot 8.

An automatic lubricating and cooling type gear shaping machine spindle structure, which includes a main shaft, a main shaft sleeve is arranged outside the main shaft, the main shaft sleeve is embedded in the body of the tool holder, and an oil inlet and an oil outlet are respectively arranged on the upper end of the main shaft sleeve. A spiral oil groove is provided, and the outer circle of the main shaft sleeve is provided with multiple annular cooling grooves, and the lower end of the annular cooling groove communicates with the spiral oil groove. In the present invention, two spiral oil grooves are processed in the main shaft sleeve, and oil is brought into the friction zone by the reciprocating motion of the main shaft to form a lubricating oil film to achieve the purpose of lubrication and prevent the main shaft from being damaged; the outer circle of the main shaft sleeve is covered with annular cooling grooves, cooling The lower end of the groove communicates with the lubricating oil groove, and there is only one opening between the annular cooling grooves, and the openings between adjacent cooling grooves are symmetrically distributed. The heat is taken away to ensure the sufficient cooling of the main shaft sleeve, so that the thermal deformation of the main shaft sleeve is very small and prevent the main shaft from grinding to death.

The invention discloses a cylindrical grinder easy to assemble and maintain and belongs to the technical field of machine tools. The cylindrical grinder comprises a sleeve, a shell, a cover plate, a grinding wheel and a sliding bearing, the shell is arranged inside the sleeve, two ends of the shell are sealed through the cover plate, the sliding bearing transversely penetrates the shell, and one end of the sliding bearing is connected with the grinding wheel; a ceramic coating is arranged on the sliding bearing and at the contact position of a spindle and a bearing bush, a return oil pipeline is arranged inside the shell and is communicated with a lubricating oil tank on the outer portion of the sleeve, and lubricating oil is circulated in the return oil pipeline in zero-pressure circulation. The ceramic coating is sprayed at the friction position of the spindle and the bearing bush, so that problems about thermal expansion deformation and abrasion of the metal spindle are solved by the aid of outstanding performance of ceramic; meanwhile, according to self structural features of the cylindrical grinder, a brand new oil leakage prevention pipeline is designed for the cylindrical grinder, zero-pressure circulation lubrication of the lubricating oil in an oil cavity is realized, long-term operation is achieved without disassembling the grinder for maintenance, and maintenance cost is greatly lowered.

The invention relates to a quick polishing device, which is used for grinding cylinders and comprises a main rod, grinding branches and grinding heads. The grinding branches are obliquely formed on the main rod in an axially staggered manner, and the grinding heads are disposed at ends of the grinding branches and are grinding head bodies capable of rotating along the grinding branches. The grinding branches are structurally designed into staggered oblique forms, accordingly, staggered oil storage pits are formed in an inner cavity of a cylinder liner conveniently, and the purpose of lubricating when a piston moves left and right is achieved. In addition, rotating sleeves are disposed on the grinding heads, accordingly, grinding grooves formed when the grinding heads are used for grinding are crescent, and the service lives of the grinding heads are prolonged. Furthermore, as the grooves are disposed on the grinding heads, the grinding heads are sharp when used for grinding. Besides, due to the reasonable structure and the crescent oil storage pits which are formed on the surface of the cylinder liner after the cylinder liner is ground, the quality of the cylinder liner is remarkably improved, and service performances of the cylinder liner are enhanced.

The invention discloses a self-locking accessory mechanism, which comprises the following parts: cylinder component, long axis component, movement shaft and spring component, wherein the cylinder component possesses mutual corresponding upper chute and lower chute; the long axis component is cased in the cylinder component, which pierces the expanding flute through-out hole corresponding to lower chute; the movement shaft pierces lower chute, through-out hole and upper chute, which consists of upper expanding part and lower expanding part; the lower expanding part corresponds to expanding flute; the spring component is cased on the movement shaft with top between upper expanding part and cylinder component, which provides elastic stress to move the movement shaft to be fixed in the expanding flute corresponding to lower expanding part.