33results about How to "Avoid secondary wear" patented technology

The invention relates to a serrated cutting tip and a serrated cutting tool having the cutting attached thereto capable of working a work piece at a fixed workability. The cutting tip includes a bond layer, which has super abrasive particles contained therein and grooves formed on a face which is in contact with the work piece, and a blank layer for strongly supporting the bond layer, by which a working plane of the cutting tip contacting the work piece is uniformly maintained during working use and debris can be readily discharged. As a result, workability is improved and lifetime is prolonged.

The invention relates to a serrated cutting tip and a serrated cutting tool having the cutting attached thereto capable of working a work piece at a fixed workability. The cutting tip includes a bond layer, which has super abrasive particles contained therein and grooves formed on a face which is in contact with the work piece, and a blank layer for strongly supporting the bond layer, by which a working plane of the cutting tip contacting the work piece is uniformly maintained during working use and debris can be readily discharged. As a result, workability is improved and lifetime is prolonged.

A laser-assisted horizontal three-dimensional ultrasonic elliptical vibration milling machine and its working method belong to the field of ultrasonic vibration cutting technology, including an air-floating platform, an XYZ moving assembly, a micro-motion unit, a workpiece fixture, a laser-assisted processing device, and an ultrasonic electric spindle assembly to make. The laser-assisted horizontal three-dimensional ultrasonic elliptical vibration milling machine involved in the present invention solves the problem that only one-dimensional or two-dimensional ultrasonic vibration can be performed in the mainstream ultrasonic elliptical vibration milling machine in the market. The coupling problem during vibration, through the real-time monitoring and adjustment of the closed-loop control system, accurately controls the vibration trajectory of the ellipse, and through the combination of laser-assisted processing technology, the overall stability of the machine tool is strengthened, and the processing effect is further improved.

The invention provides an anti-blockage engine oil filter for an automobile. The anti-blockage engine oil filter comprises a shell, a bottom plate and a transverse partition plate. The transverse partition plate is arranged in the shell and divides the interior of the shell into a first filtering cavity and a second filtering cavity. The transverse partition plate is provided with a first oil conducting port communicating with the first filtering cavity and the second filtering cavity, and a plurality of first through holes communicating with the first filtering cavity and the second filtering cavity. A first filter element is arranged in the first filtering cavity, an annular containing cavity is formed in a second barrel of the first filter element, and the annular containing cavity is filled with metal impurity adsorption materials. The second filtering cavity is internally provided with a second filter element, a bypass valve is arranged on a second end cover of the second filter element, an inlet of the bypass valve communicates with the second filtering cavity, and an outlet of the bypass valve communicates with an inner cavity of a third barrel. According to the anti-blockage engine oil filter, the metal impurity adsorption materials are used for adsorbing and filtering out large-particle metal impurities in engine oil, the filtering pressure of filter paper is reduced, the using cycle of the second filter element is prolonged, and the filtering effect of the second filter element is improved.

The invention provides a cable erection assisting device, cable erection device and cable erecting and bundling method. In a cable erection device, the cable erection assisting device can be mounted between any two cross supports of a cable tray in a dismountable manner and includes a support and a plurality of rollers. The support includes a pair of support pieces arranged in parallel. Two ends of each support piece are provided with mounting parts used for detachable connection with the cross supports. The interval between the two support pieces is smaller than the width of the cable tray. The rollers are arranged at intervals along the length direction of the support pieces. The two ends of each roller are connected to the two support pieces respectively. The rollers can rotate around their rotary axes which are perpendicular to the length direction of the support pieces. By adopting the devices and the method provided by the invention, simple and convenient operation is achieved, abrasion of cables is reduced and labor strength is reduced greatly, labor power is saved and working efficiency is improved.

The present invention provides an oil filter for an engine. The oil filter comprises a housing, a bottom plate, a first filter member, a second filter member and a bypass valve. A diaphragm plate is arranged inside the housing and divides the inside of the housing into a first filter cavity and a second filter cavity, the first filter member is arranged inside the first filter cavity, a metal impurity adsorbing material and a first filter paper are arranged between a first barrel body and a second barrel body of the first filter member, the second filter member is arranged inside the second filter cavity, an entrance of the bypass valve is communicated with a second working cavity, and an exit of the bypass valve is communicated with the inner cavity of a third barrel body. According to the oil filter provided by the invention, large-grain metal impurities in the oil are first filtered out by the metal impurity adsorbing material, so as to reduce filtering pressure of the first filter paper and a second filter paper, prolonging a service cycle of the first filter member and the second filter member, and raising the filter effect of the first filter member and the second filter member. And when the metal impurities adsorbed by the metal impurity adsorbing material reach a certain amount, a user only needs to directly replace the metal impurity adsorbing material.

The invention relates to a control method for starting a cold tandem rolling unit regardless of small coils, comprising: coiling strip steel by an exit coiler of the cold tandem rolling unit; monitoring the actual thickness of the strip steel, and calculating the coil diameter of a "virtual sleeve" when the standard is reached; The unit in the next process calculates the length of the steel coil of the uncoiler in real time in combination with the coil diameter of the "virtual sleeve", and performs the tail throwing operation when it reaches the standard. The control method of the present invention does not need to increase any equipment investment, so that the rolling mill can be started without coil separation, and at the same time, it will not affect the normal production of the next process unit, which is conducive to improving the production efficiency of cold rolling, reducing the production cost per ton of steel and reducing the number of scrapped cold rolling. .

The invention provides an automobile disc-type brake system, and belongs to the technical field of automobile parts. Brake ends located at the two sides of a brake disc are arranged at the two ends ofa brake caliper clamp separately; each brake end is provided with a valve hole communicating with a hydraulic channel and vertical to the brake disc; a brake piston is slidably connected into each valve hole; a return spring is connected between the outer end of each brake piston and the inner wall of the hydraulic channel; a guide hole is formed in the inner end of each brake piston; a torsionalspring sleeving an installation shaft is arranged between two bearings; the two ends of the torsional spring are connected with the inner walls of the guide holes and the outer wall of the installation shaft separately; a waist-shaped installation plate parallel to the brake disc is arranged at the other end of the installation shaft; and two circular brake sheets are fixedly arranged on the inner side surface of the installation plate. In a return state of the brake pistons, the connection line between the two brake sheets on the same installation plate forms an inclination angle of less than 90 degrees with the radial line of the brake disc. The automobile disc-type brake system has the advantages of being capable of providing pre-brake before brake, and the like.

The invention provides a lubricating structure for a transmission mechanism. The transmission mechanism includes an inner transmission shaft, an outer transmission shaft and a rotating shaft sheathed on the outside of the inner transmission shaft. The inner transmission shaft and the outer transmission shaft are connected by a key, and the rotating shaft Linked to the inner drive shaft or the outer drive shaft; the lubricating structure includes an oil collecting tube, an oil return flow channel, a first oil hole and a second oil hole, the oil collecting tube is set in the inner drive shaft and has an oil inlet flow channel, and the oil inlet The oil passage has an inner conical surface; the oil return passage is set between the inner transmission shaft and the outer transmission shaft, and the key is located on the path of the oil return passage; the first oil hole is arranged on the inner transmission shaft and communicated with the oil return flow channel; the second oil hole is set on the oil collecting tube and connected to the oil inlet channel, an oil collecting groove is formed between the outer wall of the oil collecting tube and the inner side wall of the inner transmission shaft, and the oil collecting grooves are respectively connected to the first oil hole and the second oil hole; the outside of the rotating shaft is provided with an oil throwing structure, and the oil throwing structure can throw the lubricating oil in the oil pool into the oil flow channel.

The invention relates to the technical field of building equipment, in particular to equipment for removing rust on the inner wall of a steel pipe for building, and aims to solve the technical problemthat no relatively good equipment can be adopted for removing dust on the inner wall of a steel pipe. In order to solve the above technical problem, the equipment for removing the rust on the inner wall of the steel pipe for building is provided. The equipment for removing the rust on the inner wall of the steel pipe for building comprises a baseplate, wherein a high-pressure water pump and a steel pipe supporting table are fixedly connected with the top of the baseplate from left to right; a water delivery pipe is fixedly connected with a water outlet of the high-pressure water pump througha flange; a steel pipe fixing device is fixedly connected with the end, far away from the high-pressure water pump, of the water delivery pipe; a ball storage pipe is welded to a movable port at the top of the water delivery pipe; and grinding balls are placed inside the ball storage pipe. According to the equipment for removing the rust on the inner wall of the steel pipe for building, the occupied area is reduced, so that more convenience can be brought to people in the handling and carrying process; the force of waterflow to drive the grinding balls to rotate is relatively small, so that the steel pipe can be protected against relatively severe abrasion; and the secondary abrasion caused by scrap iron to the inner wall of the steel pipe can be avoided and the loss of the steel pipe canbe reduced.