44results about How to "Easy structure processing" patented technology

The invention discloses a stamping retainer provided with a lubricating oil duct and a machining method. The sliding friction between an existing rolling bearing retainer and a rolling body is too large. An annular groove is formed in the side wall of each pocket of the stamping retainer in the circumferential direction of the pocket, and rounded corners are chamfered between the two side walls ofeach annular groove and the side wall of the corresponding pocket. Microstructures are arranged at the bottoms of the annular grooves. The machining method of the stamping retainer comprises the following steps of material checking; primary machining of the retainer to form a steel ring and finishing treatment; formation of the microstructures; stamping formation of a retainer body on one side ofthe retainer; surface treatment; and riveting. According to the stamping retainer provided with the lubricating oil duct and the machining method, surface-to-surface contact between a traditional retainer and a rolling body is converted into surface-to-line contact, so that the frictional resistance is reduced; through the design of the rounded corners of an n-shaped structure, the situation thatsecondary surface cracks are formed too early due to cutting of the contact surface is avoided, and the normal service life of a bearing is ensured; and meanwhile, the structures with bionic surfacetopography are arranged on oil film contact areas of a rolling body and the retainer, so that the dynamic pressure oil film properties are improved, and the lubricating effect is improved.

The invention discloses a thermostatic expansion valve with the one-way control function. The thermostatic expansion valve with the one-way control function is characterized in that a valve body (1) further comprises a containing portion (16) extending to the inner portion of the valve body (1) from an inlet channel (11), a second valve port (15) is formed in the containing portion (16), a second valve element component (5) is arranged in the containing portion (16), an inner cavity (13) is communicated with an outlet channel (12) through a first communicating channel (31), the containing portion (16) is communicated with the outlet channel (12) through a second communicating channel (32), the outlet channel (12) and the first communicating channel (31) are arranged in a parallel communicated mode, and the outlet channel (12) and the second communicating channel (32) are arranged in a parallel communicating mode. Compared with the prior art, the thermostatic expansion valve with the one-way control function has the advantages that the containing portion of the second valve element component is an extending portion of an inlet channel on the valve body, a hole does not need to be formed additionally, the structure is convenient to machine, the second valve element component is simple and reliable in installation, and the hidden danger of outward leakage is reduced; meanwhile, the first communicating channel and the second communicating channel are arranged parallel to the outlet channel in a communicated mode, so that the resistance of fluid is reduced and the environment of a flow path system is improved.

The invention provides a pumping system; the pumping system comprises a hopper, a distribution valve and a swinging oil cylinder, wherein the hopper comprises a hopper body and a screen; the pumping system further comprises an earing; the screen is mounted at a material inlet of the hopper body; the screen is connected with a hopper body moving pair; the distribution valve is mounted in the hopper body; one end of the swinging oil cylinder is hinged on the hopper body and the other end of the swinging oil cylinder is used for driving the distribution valve to rotate; one end of the earing is connected with the other end of the swinging oil cylinder; the other end of the earing is connected with the screen in a rotating way; and while driving the distribution valve to rotate, the swinging oil cylinder can be used for driving the screen to move through the earing. The invention further provides engineering machinery. According to a technical scheme provided by the invention, the screen can be directly supplied with power by the swinging oil cylinder instead of a motor to vibrate; and as a vibrating device for swinging the screen is positioned behind the hopper and a swinging protective cover is arranged outside the hopper for protection, the whole hopper is simpler, beautiful and elegant.

The invention discloses a feeding device for a C-shaped annular thin sheet. The feeding device is characterized by comprising a feeding drum (1), a fixing support (2), a push plate (3), a sliding rail (5) and a driving device (6); the sliding rail (5) is fixed on a workbench; the push plate (3) is connected with the driving device (6), slides along the sliding rail (5) back and forth, the upper surface of the push plate (3) is a stepped surface with a lower front part and a higher back part, and the height of the step is equal to the thickness of the C-shaped annular thin sheet; and the feeding drum (1) is fixed above the push plate (3), and the lower bottom surface of the feeding drum (1) is level with an upper stepped surface of the push plate (3). The feeding device disclosed by the invention gets rid of the interference of other factors in separating and feeding processes, and has relatively higher reliability when being used for feeding the C-shaped annular thin sheet.

The invention discloses a thermal expansion valve with a unidirectional control function. The thermal expansion valve comprises a valve body having an inlet passage and an outlet passage, a temperature sensing part disposed at one end of the valve body, and a first spool part disposed in an inner cavity of the valve body. The first spool part comprises a valve stem and a first spool; the valve stem is abutted to the temperature sensing part; the first spool coordinates with a first valve port in the inner cavity to control the quantity of medium fluid flowing from the inlet passage to the outlet passage. The valve body further comprises an accommodating portion extending from the inlet passage to the inside of the valve body. The accommodating portion is provided with a second valve port. A second spool part is disposed in the accommodating portion. A limit pin used for limiting an opening position of the second spool part is further disposed in the accommodating portion. When the medium flows from the inlet passage to the outlet passage, the second valve port is closed; when the medium flows from the outlet passage to the inlet passage, the second valve port opens. Compared with the prior art, the thermal expansion valve has the advantages that the influence upon flow capacity of the unidirectional valve is effectively decreased on the premise of improving manufacturability.

The invention provides an automobile tire retaining device, belongs to the technical field of logistic equipment and solves the technical problem that existing automobile tire retaining devices are troublesome to manufacture, heavy in mass and low in using convenience. The automobile tire retaining device comprises a fixing seat and an adjusting member connected on the fixing seat, the front end of the adjusting member is fixedly connected with a blocking plate for being abutted against an automobile tire, and the adjusting member can be horizontally moved back and forth on the fixing seat andcan be positioned after moving; a plate body on each of the left side and the right side of the blocking plate is provided with a punched hole formed by punching, a main blocking plate body is formedbetween the two punched holes, side blocking plate bodies surrounding the punched holes are formed on two sides of the main blocking plate body respectively, and a supporting plate supporting betweenthe main blocking plate body and the adjusting member is integrally formed on each of the left lateral side and the right lateral side of the main blocking plate body and is formed by bending the plate body at the edge of the corresponding punched hole to the rear side of the blocking plate. The automobile tire retaining device has the advantages of convenience in manufacturing and high structural strength.

The invention provide a non-skid tire which comprises a tire tread structure, a tire sidewall structure and tire shoulders, wherein the tire tread structure and the tire sidewall structure comprise rubber, cord fabrics and steel wires; the tire shoulders comprise non-skid teeth and are positioned at two sides of the tire tread; grooves can be arranged between the tire shoulders and the tire tread; and the non-skid teeth can be in a structure of tetragonal pyramids, triangle pyramids, triangular strips, hexagonal pyramids, semi-spheres, and the like. In the invention, the non-skid teeth are designed at the tire tread especially the tire shoulder part, the grooves are additionally arranged, the tire width needs not to be changed to increase the surface area of the tire tread, and the non-skid teeth also increase the frictional force between the tire and the ground, thereby improving the grounding performance of a vehicle and achieving the non-skid purpose.

The invention discloses a special optical fiber preform rod sealing device which comprises an upper outer sleeve, an inner sleeve and a lower outer sleeve which are connected in sequence, and is characterized in that the inner sleeve is of a reducing structure, the upper end of the inner sleeve is sleeved outside a preform rod core rod extension rod in a sealing manner, the lower end of the inner sleeve is sleeved outside a quartz tube in a sealing manner, and the preform rod core rod extension rod is arranged in the quartz tube; and a cavity is formed between the inner wall of the inner sleeve and the preform core rod extension rod and is communicated with an air inlet formed in the cavity. For a small-diameter preform for drawing a special optical fiber, the structure is convenient to process, simple and practical, has low requirement on the size of the special optical fiber preform as a sealing object, has certain installation allowance, and is more convenient to install and use. The sealed special optical fiber preform is used for drawing of a special drawing tower and can be used for production of various special optical fibers.

The invention relates to a horizontal frequency modulation mass damper, comprising a wall seat, a lock nut, a spring, a mass block, a damping liquid tank, steel balls, damping liquid, and a screw rod, the wall seat is located at the outermost side, and two wall seats are connected by a screw rod , the connection is tightened with lock nuts; the upper part of the screw connected to the lower part of the wall seat is welded with a damping liquid tank, the bottom of the damping liquid tank is covered with steel balls, and the damping liquid tank is filled with damping liquid; the upper part of the steel balls is placed with a mass block, The quality blocks are connected with the wall seats on both sides by springs. The beneficial effects of the present invention are: the horizontal frequency modulation mass damper puts the damping liquid into the damping liquid tank, puts steel balls in the tank, the damping liquid can not only play a damping role, but also act as a lubricating oil for the steel balls, reducing the time when the mass block moves. of friction. This structure is easy to process, easy to install, and has less friction.

A reflective boundary comprises a reflective plate and a spacer, The separator has a side plate and a connecting plate formed by bending relative to the side plate. The reflecting plate and the connecting plate are respectively formed with a convex part and a through hole, and the convex part can be fitted and inserted with the through hole. The convex part can be deformed in the through hole to rivet and consolidate the connecting plate and the reflecting plate together. The reflective boundary, on the one hand, the use of screws, On the other hand, the rivet connector is convenient to manufacture, and the thickness of the reflector plate need not be increased compared with the metal integrated forming scheme, which is conducive to the lightweight design of the rivet connector. The invention also discloses an antenna including the reflective boundary and a manufacturing method of the reflective boundary.

The invention discloses a stepless shift baffle pin board. The stepless shift baffle pin board comprises a positioning support seat, a baffle pin board, a baffle pin and an adjusting nut, wherein a shaft hole is formed in the positioning support seat, a flanged shaft is arranged on the back part of the baffle pin board, the flanged shaft passes through the shaft hole, threads are formed on the flanged shaft, the adjusting nut is installed on the flanged shaft and is matched with the positioning support seat so as to fix the baffle pin board, and the baffle pin is rotatably arranged on the front end of the baffle pin board. The flanged shaft passes through the shaft hole of the positioning support seat and is fixed by adopting the adjusting nut, and the front-and-back position of the bafflepin board can be conveniently adjusted by rotating the adjusting nut, so that stepless shift adjustment is realized, and different specifications of steel bars can be bent; the threaded connection and fixing are adopted, so that slip shifting cannot be generated; and the baffle pin on the baffle pin board is rotatably arranged, so that the frictional resistance with the steel bars can be reducedby virtue of rotation when the steel bars are bent, and the surfaces of the steel bars are prevented from being damaged. The stepless shift baffle pin board has the great advantages of convenience instructure machining, low cost and easiness in adjustment.

The invention discloses a conical valve without a middle cavity gap. The conical valve comprises a cone, a conical valve element arranged in the cone and a valve rod installed on the cone and connected with the conical valve element, the middle cavity gap is formed between the cone and the conical valve element, a communicating flow channel is formed in the conical valve element, and a main flow channel is formed on the cone. The middle cavity gap is filled with a sealing piece. The conical valve has the following advantages and effects that no connection gap exists between a valve body and the valve element, and therefore the corrosion resistance of the valve is further improved, the service life of the valve is prolonged, the structure is convenient to machine, the application range is wide, zero leakage is realized, no dead corner exists in a cavity, no liquid is accumulated, and no residual medium exists.

The invention discloses a damage identifying piezoelectric sensor capable of repeated use. The sensor comprises a piezoelectric ceramic plate, and is characterized by comprising a metal box bonded tothe surface of a detected member, a lead through hole is arranged in the center of the top plate of the metal box, one sidewall of the metal box extends vertically upwards to form a knocking surface to dismount the metal box from the detected member by knocking, the piezoelectric ceramic plate is positioned in the metal box and tightly pasted and fixed onto the base plate of the metal box, and a lead of the piezoelectric ceramic plate penetrates the lead through hole and is connected with an external impedance analyzer. The piezoelectric sensor is simple in manufacture and convenient to operate, and can effectively eliminate a test error caused by difference of the piezoelectric ceramic plate itself.