35results about How to "Reduce material strength" patented technology

A tool for a street milling, coal-cutting mining machine or the like which includes a chisel with a chisel head and a chisel stem. The chisel stem is rotatably mounted in a receiver of a chisel holder. A perforated wearing protection element is mounted on the chisel head. The chisel head sits closely on the chisel holder while embracing the interposed wearing protection element. This invention achieves improved wearing protection behavior of such a tool. Thus, the inventive wearing protection element has one or more spring elements that elastically support the chisel head by way of the chisel holder.

The container (1) has an inner container (2) made of plastic, and an outer casing made of metal grating or sheet metal. A base frame (17) is made of plastic and formed with a runner pallet (18) or a frame pallet. The base(21) is made of plastic and formed as an injection molded part. The base has a longitudinal corrugation and a transverse corrugation that are provided for reinforcing the base(21) and as a support for the inner container(2).

A closure having a base with a piercable part, defined by a sidewall extending transversally with respect to the base and a bottom thereby creating an indent therein, the sidewall and/or bottom provided with several lines of weakened material strength, wherein the lines divide the sidewall and/or bottom in several wedge formed parts.

The invention relates to a device (1) for removing impurities from the lubricating oil of an internal combustion engine, wherein the device (1) has a filter insert (2) at the bottom in the operating position of the device and a centrifuge (3) thereabove having a rotationally drivable rotor (30), wherein the filter insert (2) and the centrifuge (3) are arranged one above the other in a common two-part housing (4), which is closed during the operation of the device (1) and which has a removable upper closure cover (41) and a fixed lower housing part (42), wherein a removable intermediate cover (5) is arranged in the housing (4) between the filter insert (2) and the centrifuge (3), which intermediate cover is inserted in a sealing manner and separates a lower filter space (12), which is under the lubricating oil pressure during the operation of the device (1), from an unpressurized upper centrifuge space (11), wherein the intermediate cover (5) is supported radially outside on the closure cover (41) when the closure cover (41) is in the closed state, wherein a rotor shaft (33) rotatably supporting the rotor (30) is attached in or on the intermediate cover (5) by means of a lower end (35) of the rotor shaft and wherein the rotor (30), the intermediate cover (5) together with the rotor axis (33), and the filter insert (2) can be removed from the housing (4) when the closure cover (41) is in the open state. The device (1) according to the invention is characterized in that the closure cover (41) has a supporting surface at the center of the closure cover on the inside and that the rotor shaft (33) is supported axially on the closure cover (41) at the supporting surface by means of an upper end (36) of the rotor shaft when the closure cover (41) is in the closed state.

A burner arrangement is provided. The burner arrangement includes a support and at least two fuel nozzles attached to the support in the direction of flow, with each fuel nozzle including a support-side section which includes a contact surface on the support side with which it rests on a supporting surface of the support, with at least two fuel nozzle tips embodied in one piece extending out from the support-side section in the direction of flow and the support-side contact surface including at least two extension parts projecting in the direction of the support, with the extension parts each embodying a channel through which fuel is fed in each case to the fuel nozzle tips through passages which are arranged in the support-side contact surface of the support-side section.

The invention discloses a rolling type buffer bed. A bed body (5) is connected with supporting legs through a bolt set (6) and a buffer pad (7) at the two ends of the bed body (5); side brackets (1) with the same height are symmetrically and fixedly connected at the two ends on the upper surface of the bed body (5); more than one rib plate (2) is close to the inner side of each side bracket (1) and fixedly connected to the four corners on the upper surface of the bed body (5); more than one middle bracket (4) with the same height is symmetrically arranged in the middle close to the bed body (5); and the two ends of each of more than one buffer supporting roller (3) are movably connected to the upper end between each side bracket (1) and each middle bracket (4) and the two ends of each buffer supporting roller are movably connected to the upper end between the symmetrically distributed middle brackets (4). The more than one buffer supporting roller (3) is regularly mounted between each side bracket (1) and each middle bracket (4) and between the two middle brackets, so that a conveyer belt is uniformly in contact with the buffer supporting rollers (3), the buffer effect is enhanced, the working life of the buffer supporting rollers (3) is prolonged, and the dual-buffer effect is achieved due to the effect of the buffer pad (7). Therefore, the rolling type buffer pad is energy-saving, high in strength and stable in operation, and has practical and promotional values.

The invention provides 30CrMnSiNi2A high-strength steel for aviation and a production method thereof. The 30CrMnSiNi2A high-strength steel for aviation comprises the following chemical components in percentage by weight: 0.27 to 0.34 percent of C, 0.90 to 1.20 percent of Si, 1.00 to 1.30 percent of Mn, 0.90 to 1.20 percent of Cr, 1.40 to 1.80 percent of Ni, 0.015 to 0.03 percent of Al, 0.02 to 0.03 percent of Mo, 0.02 to 0.03 percent of V, 0.015 to 0.025 percent of Ti, 0.15 to 0.2 percent of W, less than or equal to 0.012 percent of P, less than or equal to 0.01 percent of S and the balance of Fe. According to the 30CrMnSiNi2A high-strength steel for aviation and the production method provided by the invention, a smelting process comprising electric furnace die casting, external refining and electroslag remelting which is always adopted abroad is completely replaced by the method comprising electric furnace continuous casting, external refining and electroslag remelting, so that the effect of improving the material structure property and the fatigue property is obvious. By means of the method, batch, systematic and energy-saving production can be carried out, and energy and cost are obviously saved.

In a gear unit including two gears engaging with each other, tooth portions of the two gears have material strengths different from each other. Of the two gears, a first gear with a higher material strength of the tooth portion is laterally shifted in the direction of decreasing a tooth thickness. Of the two gears, a second gear with a lower material strength of the tooth portion is laterally shifted in the direction of increasing the tooth thickness.

The invention discloses a straightening and repairing device for a long cabinet door of ecological and environment-friendly customized furniture. The device comprises a straightening and repairing box, the lower half portion of the straightening and repairing box is located in a clamping groove of a horizontal support, a side door is movably arranged on the front end face of the straightening and repairing box, the side door is fixed to an opening of the front end face of the straightening and repairing box through a plug pin, straightening air bag combinations are arranged on the two side walls of the interior of the straightening and repairing box correspondingly, and buffer layers are arranged on the front inner wall and the rear inner wall of the straightening and repairing box and the inner sides of side doors correspondingly. According to the straightening and repairing device, the air bag combinations are used for replacing traditional mechanical strong pressure, the material strength of the air bags is low, damage to wood in the punching process is extremely small, the instantaneous pressure and repeated operation of pulses are utilized, mechanical acting force can be effectively replaced, the straightening effect of the cabinet door is improved, and the working noise is also reduced, the device is suitable for different working conditions, and better use prospects are brought.

The present invention incorporates a device for measuring fluid movement conditions at a distance, such as LIDAR, into an underlying device for extracting useful work from a moving fluid, such as a wind turbine, for the purpose reducing the cost of designing and manufacturing the underlying device.

The invention provides a fixed connecting structure and a method for a conductor and an insulator supporting the conductor. First grooves are formed in the inner concave part of the outer wall of theconductor. The insulator is integrally formed outside a barrel body in a pouring manner, and the insulator sleeves the conductor. Second grooves and chutes connected to the second grooves are formed in the inner concave part of the inner wall of the barrel body. A first limiting key is embedded in the first groove and the second groove. A second limiting key is embedded in the chute, and the second limiting key is fixedly arranged between the first limiting key and the side wall of the chute. According to embodiments of the fixed connecting structure and method for the conductor and the insulator supporting the conductor, fixed connection between the conductor and the insulator supporting the conductor can be realized in an ultra-clean, normal temperature, light and low-cost manner.

A reciprocating piston machine, in particular a compressor, such as for the air conditioning system of an automotive vehicle. The machine includes a casing and at least one casing cover. A working unit including pistons and is arranged or formed in the casing. The intake and exhaust zone or a front shaft bearing are arranged or formed in the casing cover (covers). The casing cover is screwed on the casing. The screw assembling is carried out with the aid of ring nuts or saw tooth screw threads between the casing and the casing cover, wherein the casing and cover are made of materials with different strengths and different thermal expansion coefficients.

The invention discloses a novel large-span repairable fabricated joint and a fabricated method, and belongs to the field of large-span space structure engineering. The novel large-span repairable fabricated joint can be applied to a large-span single-layer spherical reticulated shell. The novel large-span repairable fabricated joint comprises a hollow ball and a plurality of round steel pipe connecting assemblies installed on the hollow ball. The round steel pipe connecting assemblies comprise repairable connecting pieces, short cantilever round steel pipe sections and common round steel pipesections, and the yield strength of the repairable connecting pieces is the lowest; and one ends of the short cantilever round steel pipe sections are installed on the hollow ball, first round steel plates are installed at the other end of the short cantilever round steel pipe sections, one end of the repairable connecting pieces are connected with the first round steel plates through first bolt groups, and the other ends of the repairable connecting pieces are connected with second round steel plates installed at one ends of the common round steel pipe sections through second bolt groups. Thewelding connection parts can be machined in a factory and can be pre-installed in the factory, on-site high-altitude welding is avoided, and the construction efficiency is greatly improved.

The invention relates to a sundries removing and grass separating, cutting and smashing integrated mower. A sundries separating and removing device is formed by transversely and uniformly arranging agroup of parallel separating sheets, a through hole is formed in the middle of each separating sheet, and the separating sheets are arranged in a transverse-spaced, equal-amplitude and gradual-shortening manner to form an oblique angle to push and discharge big sundries; after rotating, a spiral sundries removing device can laterally push medium sundries among spiral sheets to transversely penetrate the through holes to be discharged, and small sundries fall from space among the separating sheets; a mowing gap is formed between an upper conical rod and a lower conical rod of a grass separatingdevice; a cutter transversely moves along the mowing gap to cut off grass and sets aside the grass to one transverse side; an inlet is arranged in a tangential direction of moving directions of a grass smashing device and the cutter; the sundries separating and removing device, the spiral sundries removing device, the grass separating device, the cutter and the grass smashing device are fixed into a whole and fixedly connected with a screw connection frame which is assembled with a screw. The mower realizes integration of sundries removing and grass separating, cutting and smashing and is simple in process, convenient to operate and resource-saving.

The invention relates to a sheet (1) to be placed in relation to a split barge (100) for encapsulating a bulk of material (101) to be dumped when the bulk of material is released, the sheet comprising a material containing portion (4) and at least one material free portion (3) extending from at least two opposed sides of the material containing portion, wherein that the immersed sheet encapsulating the bulk of material comprises an encapsulated body (20) encapsulated by the material containing (4) portion and a self-closing portion (22) being at least a part of the material free portion (3) both extending from an assembly point (21), wherein a closing length of the self-closing portion (22) correspond to at least 5% of the circumventing length of the encapsulated body (20), the circumventing length extending from the assembly point (21) to the assembly point (21). The invention further relates to a method of encapsulating a bulk of material by means of a sheet.

The invention relates to a heat-storage energy-saving sound-insulation building material, and the material is technically characterized by the following method which comprises the steps: mixing a certain amount of ceramsite, perlite, blast furnace slag, anhydrous gypsum, an antioxidant, anti-cracking fibers, a thixotropic agent, a solar energy storage material, sodium silicate, Wacker rubber powder, hydroxypropyl methyl cellulose, fly ash, sodium citrate, urotropine, redispersible latex powder, hydroxypropyl methyl cellulose, 206 organic silicon water repellent and polypropylene fiber, performing full and uniform mixing through cyclone separation, and after full and uniform mixing, performing packaging to obtain a finished product. When the heat-storage energy-saving sound-insulation building material is heated (a heat source such as sunlight), the building material reaches the saturation temperature and becomes a liquid phase, and heat energy is stored; when the external temperature is lower than the set temperature, the phase-change heat storage material starts to release heat, the phase-change material is changed into a solid phase from a liquid phase after heat release is completed, and circulation is conducted in cycles. The composite material can be made into profiles, plates, mortar and porous bricks, can absorb sound waves, has elasticity, generates tremble, rebound andreverse absorption under the impact of the sound waves, and is converted into different frequencies, so that the structural vibration is reduced, and the purpose of noise elimination is achieved.

The invention relates to a ventilation valve for ventilating the interior of a vehicle, comprising a valve frame with at least one through opening, and also at least one ventilation flap which is mounted on the valve frame and is pivotable between a closed position and an open position, wherein the at least one ventilation flap closes the at least one through opening in the closed position and opens up the at least one through opening in the open position, which comprises resetting means for pivoting the at least one ventilation flap back out of the open position into the closed position.