102results about How to "Reduce rigidity requirements" patented technology

The invention discloses a double-side edge tooth cutting tool for a cylindrical gear. The double-side edge tooth cutting tool comprises a cutter tooth disc, wherein the cutter tooth disc is provided with a circle of cutter teeth having a conjugated tooth shape with a workpiece gear set; the normal modulus of the double-side edge tooth cutting tool for the cylindrical gear is identical with that of a workpiece; and the cutter teeth comprise a front angle gamma, a tooth top rear angle alpha e, a side-edge rear angle alpha c and a spiral angle. The double-side edge tooth cutting tool is characterized in that each cutter tooth is also provided with a side-edge front angle gamma sc; the side-edge front angle gamma sc is an intersection angle between an intersection line y1g1 of a plane M1-M1 and the front cutter surface of the cutter teeth and the normal plane S-S of the cutter teeth, wherein the plane M1-M1 passes any point y1 on the side edge of the cutter teeth, is tangent to a circle passing the point y1 on the cutter tooth disc and is simultaneously parallel to the axis of the cutter tooth disc; and the inclined directions of the side-edge front angles gamma sc corresponding to the toothed surfaces at two sides of each cutter tooth are opposite and inclined from the side edges of the cutter teeth to the midlines of the cutter teeth and the inside of a cutter body respectively. The double-side edge tooth cutting tool disclosed by the invention has reasonable cutting parameters in the processing process, optimized cutting states and formed favorable cutting precision and surface quality.

The invention relates to a drawer module and a refrigerating and freezing device with the drawer module. The drawer module comprises a cylinder and a controlled atmosphere membrane module, wherein drawer space is limited in the cylinder; an accommodating cavity is limited in the top wall of the cylinder, and is communicated with the drawer space; the controlled atmosphere membrane module is mounted in the accommodating cavity, and has a controlled atmosphere membrane and an oxygen-enriched gas collecting cavity; and the controlled atmosphere membrane module is configured to enable more oxygen in the accommodating cavity to enter the oxygen-enriched gas collecting cavity through the controlled atmosphere membrane compared with nitrogen in the accommodating cavity. The drawer module can form rich nitrogen and lean oxygen in the drawer space to facilitate a gas atmosphere for food preservation, reduces the aerobic respiration strength of fruits and vegetables, and meanwhile, guarantees basic breathing effect to prevent anaerobic respiration of the fruits and the vegetables so as to achieve the purpose of long-time preservation of the fruits and the vegetables. The drawer module occupies no storage space, and can prevent collision from damaging the controlled atmosphere membrane module.

The invention provides a refrigerator and a drawer assembly thereof. The drawer assembly for the refrigerator comprises a box provided with a forward opening, a drawer arranged in the box in a front-back push-pull manner and provided with a front end plate used for sealing the forward opening, and a transmission cable assembly. The transmission cable assembly comprises a wiring rod and a spiral spring cable, wherein the front end of the wiring rod is fixedly connected to the rear surface of the front end plate and arranged in the front-back direction, the spiral spring cable is arranged on the wiring rod in a sleeving manner, the end portion of the spiral spring cable is fixedly connected to the front end plate so that electric power or signals can be transmitted to a power utilization component on the front end plate, and the spiral spring cable is arranged to be subjected to elastic and telescopic deformation along with front-back movement of the front end plate.

The invention relates to a gas suction pump assembly and a cold storage and freezing device. The gas suction pump assembly comprises an installing box and a gas suction pump; a containing space is defined in the installing box; at least part of the box wall of the installing box is made from a micro-porous silencing plate; the surface of the micro-porous silencing plate is provided with a plurality of silencing through holes; the gas suction pump is arranged in the installing box; and the micro-porous silencing plate is arranged to absorb noise generated by the gas suction pump when the gas suction pump runs. By means of the micro-porous silencing plate, the gas suction pump assembly reduces outward spreading of the noise when the gas suction pump runs.

The invention belongs to the technical field of aluminum template manufacturing equipment and relates to blanking equipment of aluminum template blank materials and specifically relates to a materialdelivery mechanism of an aluminum template automatic blanking production line. a drive device I is electrified to rotate to drive a translation component I to translate forward along a linear guide rail; a guide rod type lifting air cylinder I drives a pneumatic finger I to descend; the pneumatic finger I clamps an aluminum template blank. A drive device II is electrified to rotate to dive a translation component II to translate forward along a linear guide rail II; a guide rod type lifting air cylinder II drives a pneumatic finger II to descend; the pneumatic finger II clamps an aluminum template. A sawing machine feeder and a punching machine feeder can realize relay delivery. The material delivery mechanism provided by the invention has the following beneficial effects: the delivery mechanism is remarkably simplified, and requirements on the manufacturing technology and machining accuracy are lowered while the feeding accuracy still can reach the using requirements and the manufacturing cost of the whole equipment is substantially reduced.

The invention discloses a single-side edge tooth cutting tool for a cylindrical gear. The edge tooth cutting tool for a cylindrical gear comprises a cutter tooth disc, wherein the cutter tooth disc is provided with a circle of cutter teeth having a conjugated tooth shape with a workpiece gear set; the normal modulus of the single-side edge tooth cutting tool for the cylindrical gear is identical with that of a workpiece; the cutter teeth comprise a front angle gamma, a tooth top rear angle alpha e, a side-edge rear angle alpha c and a spiral angle; each cutter tooth is also provided with a side-edge front angle gamma sc; the side-edge front angle gamma sc is an intersection angle between an intersection line gy of a plane M-M of and a front cutter surface of the cutter teeth and a normal plane S-S of the cutter tooth disc, wherein the plane M-M passes any point y on the side edge of a cutter outline of the cutter teeth, is perpendicular to a midline o-o of a front cutter surface of the cutter teeth and is parallel to the axis of the cutter tooth disc; and the inclined directions of the side-edge front angles gamma sc on two adjacent cutter teeth are symmetrically distributed with the midlines of the two cutter teeth as the axes. The single-side edge tooth cutting tool disclosed by the invention has reasonable cutting parameters in the processing process, optimized cutting states and formed favorable cutting precision and surface quality.

The invention discloses an outrigger of a movable lifting device; the outrigger comprises a movable outrigger joint with at least one expandable level; the expansion direction of each level of movable outrigger joint has a downward inclining angle; outrigger joints are symmetrically arranged on the lifting device to form an arc support for the lifting device. The invention also provides a lifting device, correspondingly arranging the outrigger of the movable lifting device. Compared with the prior art, the invention provides the outrigger of the movable lifting device to provide the arc support for the lifting device. The arc support can prevent the vertical pressure on the outrigger by a load of the lifting device from concentrating on some special positions, and lighten the downward sinking of the lifting device caused by applying a horizontal vertical L-shaped outrigger in the prior art.

The invention discloses a press for high-speed pressing of powder metallurgy on the basis of mechanical spring energy storage. The press comprises a press body frame, a heavy hammer lifting mechanism, a heavy hammer impact mechanism, a hammer handle locking and releasing mechanism, a mechanical spring, a suspension part thereof, a spring sleeve, a fastener thereof, an upper die punching and supporting table and a power mechanism, wherein the heavy hammer lifting mechanism sliding along a straight line, the hammer handle locking and releasing mechanism, the heavy hammer impact mechanism and the upper die punching and supporting table are successively connected on a guide rod in series; in the direction vertical to the guide rod, two ends of a shaft pin type sensor pass through and are clamped into the through holes of a suspension part frame; and the middle part passes through to be clamped in a hanger through hole. The high-speed press for powder metallurgy of the invention is suitable for producing powder metallurgy high-speed pressing parts with smaller volume, has small volume, small weight, simple structure, convenient assembly and reliable performance, overcomes the problems of complex structure and high manufacturing cost of the existing hydraulic high-speed pressing equipment, and is easy to popularize and apply in the powder metallurgy industry.

The invention relates to an air extracting pump assembly and a refrigerating and freezing device. The air extracting pump assembly comprises a sealing box where a sealing space is defined, and an air extracting pump arranged in the sealing box. The sealing box comprises a lower box body with the upper side opened, and an upper box body with the lower side opened. A sealing cover of the sealing box is buckled on the upper side of the lower box body so that the sealing space of the sealing box can be defined by the sealing cover and the lower box body together. The rear end of the upper box body is hinged to the rear end of the lower box body. The front end of the upper box body is fastened at the front end of the lower box body in a thread connection manner. By means of the air extracting pump assembly, outward propagation of the noise of the air extracting pump can be reduced, and the air extracting pump is convenient to disassemble and assemble.

The embodiment of the invention discloses a flexible automobile radiator system comprising an upper supporting board, a lower supporting board, an external left supporting framework, an external right supporting framework, a core body, an upper main piece and a lower main piece. The upper main piece is arranged between the core body and an upper water chamber. The lower main piece is arranged between the core body and a lower water chamber. Reinforcing plates are arranged at the left side and right side of the core body. The reinforcing plates are in a variable cross-section structure. The middle thickness of the reinforcing plates is more than the edge thickness of the reinforcing plates. Each reinforcing plate is provided with flexible grooves which transversely extend, pass through thethickness direction of the reinforcing plate and are symmetrical to the middle point of the reinforcing plate. Each one of the upper main piece and the lower main piece comprises a left piece and a right piece. The inner ends of the left and right pieces are fixedly connected. The flexible automobile radiator system provided by the invention limits the distortion flexibility of the core body on the premise of ensuring the structure stability of the flexible automobile radiator system, so that the flexible automobile radiator system has the advantages of higher anti-vibration strength and longer service life.

The invention discloses a peanut vine soil removing conveying and back laying device for a peanut digging and back-laying machine and belongs to the technical field of peanut harvesting machinery. Thepeanut vine soil removing conveying and back laying device comprises a suspended type rack equipped with supporting wheels, wherein a peanut vine soil removing conveying device and a peanut vine backlaying device are sequentially arranged on the rack from front to back; the peanut vine soil removing conveying device comprises a peanut vine conveying device and a vibrating device; the vibrating device comprises at least one roller train; the peanut vine back laying device comprises a left-side peanut vine back laying structure and a right-side peanut vine back laying structure, the left-sidepeanut vine back laying structure and the right-side peanut vine back laying structure are arranged in bilateral symmetry and are the same in structure, and each of the left-side peanut vine back laying structure and the right-side peanut vine back laying structure comprises a bar fixing bracket fixed to the rack and bars which are fixed to the corresponding bar fixing bracket at intervals. According to the peanut vine soil removing conveying and back laying device for the peanut digging and back-laying machine, peanut vines dug out from a field can be subjected to peanut vine soil removing and are conveyed to the peanut vine back laying device so as to carry out back laying and regular piling on the peanut vines, and thus, sun-curing of peanuts and processing of a peanut-vine separator are facilitated.

The valve has a closure element (3) that is arranged in an interior (2) of a valve housing (1). The closure element surrounding a valve opening (4) is mounted in a valve seat (6) in a closed state.The valve housing has a housing wall (19) made of sheet metal, for delimiting the interior. A flange ring (21) is connected to a connection flange (28) of a vacuum unit (27) by a screw connection. The interior of the vacuum unit is attached to the valve housing.The closure element is placed over the valve seat in the closed state by the flange ring.

The invention relates to a drainer, in particular to a lift-draw type drainage control device for kitchen and bathroom. The lift-draw type drainage control device comprises: a housing that is suitable for the installation in the drainhole of a pool; a piston slidingly matched with the housing; and a steel wire actuating device which is provided with a steel wire and a sleeving having a flexible sleeve and limited axial compression; the actuating end of the steel wire stretches into the housing and is combined with the lower part of the piston, and the controller of the steel wire actuating device is arranged outside the housing. The drainage control device is convenient for installation, and prevents blockage.

The invention discloses a frame side-impact limiting device for SUVs (sport utility vehicles), which comprises a frame longitudinal beam and a body B pillar. The limiting device disclosed by the invention is characterized in that a steel side-impact limiting box consisting of a top plate, a left side plate, a bottom plate, a right side plate and an outer plate is fixed on the external sidewall ofthe frame longitudinal beam in front of the body B pillar, under a driver seat, and at a position close to a point R so as to improve the rigidity of the side-impact limiting box. The side-impact limiting box can participate in the absorption of impact energies during the early and middle periods of impact, thereby reducing the requirements on the quantity of absorbed impact energies of body parts such as the body B pillar, a body floor and a side body, and the like, namely, correspondingly reducing the rigidity demands for the body parts, reducing the complexity of the body structure, and lowering the process requirements of the body. By using the side-impact limiting device disclosed by the invention, when a side impact occurs to vehicles, impact energies can be transferred to the framelongitudinal beam as many as possible and then absorbed efficiently so as to reduce the damages to a body passenger cabin; and the side-impact limiting device has the advantages of less investment and low cost, therefore, the side-impact limiting device is suitable for non-stressed SUVs.

The present invention relates to a movable lid type electric pressure cooker. It is characterized by utilizing elastic lid to control and limit interior pressure of cooker. Said movable lid type electric pressure cooker includes the following several portions: lid, elastic element, switch, sealing ring, inner pot, electric heater and outer pot. Besides, said invention also provides the connection mode of all the above-mentioned portions and the working principle of said electric pressure cooker.

The invention provides a cold storage refrigerating device which comprises a cabinet body, an air adjusting film assembly and an air extractor. A first storage space is defined in the cabinet body. A storage container is arranged in the first storage space. The storage container is provided with a cylinder body and an air adjusting preserving space located in the cylinder body. The air adjusting film assembly is installed on the cylinder body, and space around the air adjusting film assembly communicates with the air adjusting preserving space. The air adjusting film assembly is provided with at least one air adjusting film and an oxygen enrichment gas collecting cavity and arranged to enable more oxygen in air flow in the space around the air adjusting film assembly to penetrate the air adjusting films relative to nitrogen in air flow in the space around the air adjusting film assembly to enter the oxygen enrichment gas collecting cavity. The air extractor communicates with the oxygen enrichment gas collecting cavity through a pipeline to extract and pump the gas penetrating into the oxygen enrichment gas collecting cavity out of the storage container. The cold storage refrigerating device is good in preserving effect, moreover, the requirements for rigidity and strength of the cabinet body and the like are low, the achievement requirement is low, and the cost is low. Moreover, the size is small, the noise is low, and cold storage refrigerating device is particularly applicable to families and individuals.

The invention provides a friction stir welding and mechanical self-locking repair method for a threaded hole, and aims to improve the repair quality and repair efficiency of the threaded hole. The groove is machined in the to-be-repaired threaded hole, so that mechanical self-locking is generated while metallurgical bonding of the filling material and the to-be-repaired area is achieved, and the bearing capacity of the repaired threaded hole is improved through the dual effects of mechanical self-locking and metallurgical bonding. And the adopted filling material is in a circular ring shape, so that the repairing efficiency is improved, and the rigidity requirement of the used equipment is reduced.

The invention relates to a multistage gas gun anti-recoil device and belongs to the technical field of mechanical machining. The multistage gas gun anti-recoil device comprises a cylinder block I (1),a cylinder block II (3), a buffer rod (5), a gas injection valve (6) and a balance valve (7). The cylinder block I is fixedly connected with a gun piece. The cylinder block II is fixedly connected tothe cylinder block I. One end of the buffer rod is movably connected with the cylinder block II. One end of the buffer rod is connected with the gun piece. Cavities of the cylinder block I and the cylinder block II are filled up with gas at different pressures through the gas injection valve. The cavities communicate through the balance valve. At different stages of the gas gun shooting process,the pressures of the cavities are adjusted through the balance valve to implement buffering on recoil force and forward impact force. Compared with the prior art, the multistage gas gun anti-recoil device can accurately return zero to shifting generated under different working conditions within short time in the gas gun shooting process, gently absorb peak stress generated in different stress directions and reduce the requirements for rigidity and strength and the foundation load bearing strength, is simple in structure and achieves the combined operation effect of multiple recoil mechanisms and counter-recoil mechanisms of an original gas gun.