32results about How to "Consistent stiffness" patented technology

A one-piece composite hockey stick includes a shaft and a blade. The blade end of the shaft extends entirely through the blade such that the blade end can contact the playing surface along with the bottom side of the blade. The shaft extending through the bottom side of the blade can provide a user with an enhanced feel and improved playing characteristics by providing continuous fibers that extend from the grip of a user to the playing surface through the shaft. The shaft can be hollow and open on the blade end such that the interior cavity of the shaft can be accessed from the bottom side of the blade. One or more inserts can be selectively disposed in the interior cavity of the shaft to provide a desired weight distribution and / or damping characteristics.

The invention provides a rack for testing the anti-sinking rigidity of the side surface of a vehicle body. The rack comprises a chassis, and a vertical frame and an upright post which are fixedly connected with the chassis, wherein transverse beam mounting plates are connected with the vertical frame; two ends of a transverse beam are connected with the vertical frame through the transverse beam mounting plates; an actuator mounting seat is connected with the transverse beam in manner of adjusting the relative position; the actuator mounting seat comprises a fixing seat, a movable seat and a hinge pin; the fixing seat is fixedly connected with the transverse beam; the fixing seat is hinged with one end of the movable seat and can be fixedly connected with the movable seat; the other end of the movable seat is fixedly connected with an actuator; the actuator is connected with a test head; a force sensor is arranged between the test head and the actuator; and a transverse beam transformation displacement sensor is arranged between the upright post and the transverse beam and is used for testing the deformation of the transverse beam during a rigidity test. The rack is simple in structure, easy to operate, high in adaptability and low in cost, and can effectively test the anti-sinking rigidity of the side surface of the vehicle body.

The invention discloses a conversion type friction pendulous shock absorption and isolation support, and relates to the technical field of bridges. The support comprises a hyperboloid body, a spherical wear-resistant sliding plate I and a spherical wear-resistant sliding plate II are connected to the upper curved surface and the lower curved surface of the hyperboloid body respectively, an upper pendulum and a lower pendulum are arranged on the upper portion and the lower portion of the hyperboloid body respectively, a plane wear-resistant sliding plate is connected to the upper surface of the upper pendulum, a plane steel plate is arranged on the upper portion of the upper pendulum, a downwards arranged steel baffle is arranged at the end of the plane steel plate, a steel baffle ring which locks the upper pendulum is arranged on the lower pendulum, the steel baffle ring is fixed on the lower pendulum through an anti-shear pin, and an elastic body is arranged between the upper pendulum and the steel baffle; a bridge cannot be lifted, the bridge structure reciprocating lifting problem is solved, no relative movement is generated between all components under the normal working condition, and the problem that due to the fact that the spherical war-resistant plate is subjected to friction for a long time, the service life is greatly shortened is solved; the anti-shear pin is cut off under the E2 seismic working condition, relative movement can be generated between the components, and friction pendulous movement is formed.

The invention provides a monomer cylindrical multi-directional constant-stiffness all-metal vibration absorber which comprises a mounting shaft, an axial lower end limiting stopper, an axial upper end limiting stopper, an axial vibration reduction medium, a first shell, a second shell, a radial limiting stopper and a radial vibration reduction medium, wherein the axial and radial vibration reduction components are of mutually independent structures; the axial vibration reduction component is cylindrical; the radial vibration reduction component is annular; the axial vibration reduction component is arranged in the radial vibration reduction component. By virtue of the unique design method of the vibration reduction components, multi-directional constant stiffness can be realized, the purpose of ensuring mutually-independent axial and radial stiffness regulation can be achieved, and the axial and radial resonant frequency intercoupling problem is radically solved; by virtue of controlling the densities of the vibration reduction media in the vibration reduction components, the resonant frequency points can be accurately controlled, the difference between the axial resonant frequency and the radial resonant frequency is controlled within + / -0.5Hz, and the usage requirements of vehicles, ships, airplanes and rockets in various occasions and the requirements for the multi-directional constant-stiffness vibration isolation and long-term storage of various instruments are met.

The invention provides a statical indetermination radar / antenna support dynamic leveling method which comprises the followings steps of a step S1 of setting a first gradienter and a second gradienter with indication directions which are mutually vertical on a rotary table; a step S2 of adjusting the indication directions of a radar / antenna on the rotary table to be horizontal; a step S3 of controlling the rotary table to rotate around an azimuth axis to enable the radar / antenna to direct to a plurality of positions, and respectively adjusting supporting legs on end portions of four horizontal landing legs to enable indication of the first gradienter to be horizontal when the radar / antenna directs to the plurality of positions; and a step S4 of continuously controlling the rotary table to rotate around the azimuth axis to enable the radar / antenna to direct to a plurality of positions, maintaining the indication of the first gradienter to be horizontal, and adjusting supporting legs on end portions of four horizontal landing legs to enable indication reading at each position of the second gradienter to be unanimous. The statical indetermination radar / antenna support dynamic leveling method enables the rotary table to be adjusted to be in a horizontal state under biggest gravitational torque, and then enables stiffness of each horizontal supporting leg to be adjusted to enable stress of each supporting leg to be unanimous.

The invention relates to a rim and a wheel with asymmetric design of rims on both sides, comprising a proximal rim, a middle part and a distal rim; the proximal rim and the distal rim are respectively arranged in the middle Both ends of the rim, and the proximal rim and the distal rim adopt asymmetric design, so that the rigidity of the distal rim is greater than that of the proximal rim; The rigidity of the distal rim is greater than that of the proximal rim. During use, the rigidity of the proximal rim increases due to the support of the spokes, so that the rigidity of the rims on both sides is consistent. In this way, the tire exerts an even force during the driving process, which can eliminate the eccentric tire wear caused by the different stiffness of the two ends of the traditional wheel, and prolong the service life of the wheel.

The invention discloses a detachable assembly type column and foundation ductile joint connection mode. A reinforced concrete column and a foundation, a steel structural connection piece with good ductility and hexagonal high-strength bolts are included. The steel structural connection piece is a hoop-shaped component which is manufactured by a steel mold, and vertical reinforcing ribs are weldedto the outer portion of the steel structural connection piece. The steel structural connection piece wraps a concrete block to form a square steel pipe concrete structure, holes corresponding to the positions of longitudinal ribs are formed in an upper end plate and a lower end plate of the square steel pipe concrete structure, and energy-consumable rubber threaded pipes are screwed into the holes; the tail ends of a column longitudinal rib and a column longitudinal rib in the foundation are subjected to tapping treatment, and are screwed into internal thread steel pipes and internal thread steel pipes with end plates arranged at the tail ends; and the three main components are connected through hexagonal screw rods. The joint connection mode is simple and convenient, dismounting is easy,industrialized production of the components can be achieved, the ductility and the energy consumption ability of the structure can be improved, the anti-shear ability of columns can be improved effectively as well, and the anti-seismic bearing ability of the columns is improved accordingly. The joint connection mode has the good disaster resistant ability, and the ideas of environmental protection, duration and sustainable development are reflected as well.

The invention discloses a transformer temperature controller with external heating elements, which comprises a sensing guide tube (1) and a copper body (2) connected with the sensing guide tube (1), wherein, the other end of the copper body (2) is provided with a push rod (3); heating tubes (4) are connected on the sensing guide tube (1) in series; and electric heating elements (5) are arranged on the heating tubes (4). In the invention, a temperature-sensing medium is heated outside the copper body to avoid a local overheating atmosphere of the copper body and maintain consistent rigidity and hardness of the push rod under different load conditions, and displacement of the push rod is only related to swelling capacity of the temperature-sensing medium, thus guaranteeing high precision ofthe temperature controller. The transformer temperature controller has simple structure but solves the technical problem which is always expected to be solved but is not successful.

The invention relates to a deep well outburst simulation experiment method and a rigidity regulation and control device and belongs to the technical field of coal and gas outburst simulation experiments. The method comprises steps of determining rigidity of a theoretical loading system of an outburst simulation experiment and designing a rigidity regulation and control device according to rigidityof the theoretical loading system and rigidity of an actual loading system; rigidity of the actual loading system is regulated and controlled through the rigidity regulation and control device to beconsistent with rigidity of the theoretical loading system, and distribution of the force loaded on a coal body by the actual loading system is regulated and controlled to be consistent with mining-induced stress distribution of a deep well coal seam roof through the rigidity regulation and control device. The method is advantaged in that by arranging the rigidity regulation and control device, the simulation test loading boundary is consistent with the actual engineering boundary, and accuracy of the test result is improved.

The invention relates to the technical field of automobile manufacturing, and specifically discloses a steering gear impact test stand. The impact test bench includes a drop hammer impact device, a sample fixing device and a tie rod holding device. The sample fixing device is arranged below the drop weight impact device. Adjust the rigidity of the front sub-frame system of the actual vehicle to make it consistent with the stiffness of the front sub-frame system of the real vehicle; the tie rod holding device is set on the sample fixing device, and the tie rod holding device is used to clamp the tie rod of the steering gear sample, which can realize the tension of the tie rod when the steering gear sample is installed. Accurate positioning, and can maintain the positioning accuracy of the tie rod before the impact, and can also realize the disconnection during the impact to release the tie rod quickly, so as to realize the free movement of the tie rod when the steering gear sample is impacted. The steering gear impact test bench can ensure that the tie rods of the steering gear sample are fixed at the same position during each impact test, thus ensuring the scientificity and accuracy of the test.

The invention discloses an application method of single body entry type ceramic wood. During ceramic wood preparing, sodium phenylacetate and chloropropene prepared through the reaction of phenylacetic acid and sodium hydroxide enters wood, allyl phenylacetate is generated, then, a high-molecular polymer is generated, and a net-shaped structure is formed by the high-molecular polymer and wood fiber. The interior-exterior structure, rigidity and strength of the ceramic wood can be consistent, and the interior and exterior waterproof performance, corrosion resisting performance, mothproof performance, anti-mold performance, safety performance and size stability of the ceramic wood are guaranteed, and therefore the ceramic wood can be directly used on the premise that coating of a coat is notconducted; and when the surface of the ceramic wood is old-fashioned, the performance of the ceramic wood is not influenced after grinding.

The invention provides a rack for testing the anti-sinking rigidity of the side surface of a vehicle body. The rack comprises a chassis, and a vertical frame and an upright post which are fixedly connected with the chassis, wherein transverse beam mounting plates are connected with the vertical frame; two ends of a transverse beam are connected with the vertical frame through the transverse beam mounting plates; an actuator mounting seat is connected with the transverse beam in manner of adjusting the relative position; the actuator mounting seat comprises a fixing seat, a movable seat and a hinge pin; the fixing seat is fixedly connected with the transverse beam; the fixing seat is hinged with one end of the movable seat and can be fixedly connected with the movable seat; the other end of the movable seat is fixedly connected with an actuator; the actuator is connected with a test head; a force sensor is arranged between the test head and the actuator; and a transverse beam transformation displacement sensor is arranged between the upright post and the transverse beam and is used for testing the deformation of the transverse beam during a rigidity test. The rack is simple in structure, easy to operate, high in adaptability and low in cost, and can effectively test the anti-sinking rigidity of the side surface of the vehicle body.

The invention discloses a transformer temperature controller with external heating elements, which comprises a sensing guide tube (1) and a copper body (2) connected with the sensing guide tube (1), wherein, the other end of the copper body (2) is provided with a push rod (3); heating tubes (4) are connected on the sensing guide tube (1) in series; and electric heating elements (5) are arranged on the heating tubes (4). In the invention, a temperature-sensing medium is heated outside the copper body to avoid a local overheating atmosphere of the copper body and maintain consistent rigidity and hardness of the push rod under different load conditions, and displacement of the push rod is only related to swelling capacity of the temperature-sensing medium, thus guaranteeing high precision ofthe temperature controller. The transformer temperature controller has simple structure but solves the technical problem which is always expected to be solved but is not successful.

The invention relates to a polyurethane foam sandwiched plastic steel composite cable duct. The polyurethane foam sandwiched plastic steel composite cable duct comprises an inner duct, wherein an external thread groove is continuously formed in the outer surface of the inner duct along the axial direction of the inner duct, a polyurethane foam layer is arranged in the external thread groove, and a thermo-setting glass steel tube is arranged on the outer surface of the polyurethane foam layer and the outer side of the inner duct. The structure design is reasonable, the external thread groove is filled and leveled up by the polyurethane foam layer to form a bumped three-dimensional stressed surface, then the glass steel tube is arranged on the outer side face of the polyurethane foam layer and the outer side face of the inner duct, and the polyurethane foam layer is light, so that the weight of the whole cable duct is reduced; as the polyurethane foam layer has strong bonding force when bonded with the glass steel, the glass steel tube and the inner duct can be closely combined into one body, the friction force between the inner duct and the glass steel tube is increased greatly, the inner duct and the outer duct can be prevented from slippage; and besides, the surface of the outer duct is in cylindrical smooth arrangement, and the outer duct has uniform thickness and consistent strength, so that the rigidity is enhanced greatly and the service life is prolonged.