31 results about "Central force" patented technology

A system and method is provided for cooling a gaming machine. The cooling system includes an air flow assembly which draws fresh air from outside the gaming machine. The air flow assembly provides the fresh air to a set of ducts. The set of ducts channel the fresh air to one or more internal components of the gaming machine. The cooling system may also include an inlet duct to channel air from outside the machine to the air flow assembly and filters for cleaning the air entering the gaming machine.

The invention provides a configuration for a low-earth-orbit remote sensing satellite, which comprises a base plate, a middle plate, a top plate, a plurality of transverse lateral plates and upright lateral plates, wherein the base plate, the middle plate and the top plate are enclosed into a sealed space by the transverse lateral plates and the upright lateral plates; a central force-bearing cylinder is arranged in the sealed space; corresponding solar cell arrays are arranged on the two sides of the sealed space; a supporting rod is connected between the base plate and the middle plate; four isolating plates are uniformly distributed and are arranged between the middle plate and the top plate; a payload bay is connected above the top plate; and an overskirt is connected to the bottom of the base plate. The configuration for the low-earth-orbit remote sensing satellite has a stable structure, is capable of carrying a large-size and large-mass load, and is high in adaptability for the characteristics of large volume, heavy weight, high precision demand and difficulty in mounting of the present payload.

The invention discloses a dynamic and static triaxial tester for frozen and thawed soil in an open system. The tester comprises a temperature control system, a water-replenishing system, a loading system, a confining pressure system, and a data acquisition system, wherein the temperature control system comprises a cold end socket, a warn end socket, a high and low-temperature constant-temperature liquid bath circulator, a porous pressure-transmitting medium, and a rubber film; the water-replenishing system comprises a water-replenishing tank, a water-replenishing bottle, and a high-intake value ceramic plate; the loading system comprises an exciter, a reaction frame, a test pedestal, a central force transmission rod, and a counterweight; the confining pressure system comprises a linear bearing, a pneumatic valve, an external pressure chamber, and an internal pressure chamber; and the data acquisition system comprises a displacement sensor, an annular liquid level calibration chamber, a dilatation measurement chamber, a differential pressure sensor, a piezoelectric force sensor, a temperature sensor, and a humidity sensor. The dynamic and static triaxial tester for the frozen and thawed soil in the open system disclosed by the invention can carry out a conventional frozen soil test involved in Code for Soil Test of Railway Engineering (TB10102-2010), an unidirectional freezing or thawing test for a specimen under the action of a dynamic load and different stress states, etc.

In a multi-zone control system for central forced air HVAC systems where the minimum conditioned airflow produced by the HVAC equipment significantly exceeds the airflow capacity to many of the zones, the invention is an energy saving method for choosing non-calling zones to receive excess airflow in. When satisfying calls for conditioning from one or a few zones, excess conditioned airflow is directed to non-calling zones. The method chooses occupied non-calling zones using a priority that provides comfort, and chooses unoccupied non-calling zones using a different priority that provides energy savings. Limits are provided for each zone to prevent excessive over conditioning in non-calling zones.

The invention relates to the technical field of integrated spaceflight devices, in particular to a plate frame type satellite device suitable for a high earth orbit satellite. The plate frame type satellite device comprises an electronic cabin top plate, an electronic cabin front plate, an electronic cabin rear plate, electronic cabin side plates, an electronic cabin partition plate, a main force-bearing front plate, a main force-bearing rear plate, main force-bearing side plates, a bottom plate, a transition sleeve and a cushion plate. According to the plate frame type satellite device, a central force-bearing barrel is omitted, a plate frame is used as the main force-bearing structure, and uniform transition of whole satellite mechanical loads from a box type plate frame platform to a round carrying butt-joint ring is achieved; the plate frame type satellite device has the characteristics of being simple, flexible, high in expandability and suitable for an electric propulsion satellite platform; the satellite space utilization efficiency is effectively improved, and the effective load bearing capacity is improved.

The invention provides a special hoisting mechanism for a nuclear main pump flywheel, which is used for hoisting a nuclear main pump flywheel, and comprises a central force bearing ring and concave clamps, wherein a flying ring is fixed on the upper bottom surface of the central force bearing ring; at least three mooring ropes are uniformly distributed on the circumference of the side wall of the central force bearing ring; a turn buckle used for adjusting length is arranged on each mooring rope; the concave clamps are fixed at the end parts of the mooring ropes; clamping grooves used for clamping the nuclear main pump flywheel are formed in the side walls of the concave clamps; threaded holes communicated with the clamping grooves are formed in the tops of the concave clamps; adjusting bolts are mounted in the threaded holes in a matching manner; the end parts of the adjusting bolts extend into the clamping grooves, and a pressing plate is fixed at the end part of each adjusting bolt. The hoisting mechanism special for the nuclear main pump flywheel can adjust the centre-of-gravity position and ensures the stability and safety of the flywheel during the hoisting process.

The invention relates to an umbilical cable which adopts a central force bearing layer comprising a steel wire and a nylon rope, wherein an insulated core layer A, an insulated core layer B, an insulated core layer C, an insulated core layer D and a nylon braided sleeving are sequentially wound outside the central force bearing layer, wherein the insulated core layer A, the insulated core layer B, the insulated core layer C and the insulated core layer D have different specifications, numbers and winding directions of leads; the nylon braided sleeving is arranged outside the insulated core layer D; the lead comprises a conductor; an insulating layer is wound outside the conductor; and a shield is woven outside a sintered wire core. The invention overcomes the defects that the functions of the current cables can not meet the space environmental requirements, and the structure and appearance are ugly, big, black, thick and hard; and the umbilical cable is suitable to be used as a cable used in the space environment, especially suitable to be used as a cable for extravehicular activities in the space for astronauts of manned spaceflight engineering.

A temperature adjustable air-cooled undergarment for connection to a central forced air supply and for wear on a human body includes an upper body garment configured for wear on an upper torso of a wearer, the upper body garment defining an imaginary vertical axis corresponding with a position of the wearer's spine. A first tubing network is integrated into a left segment of the upper body garment and is situated to the left of the vertical axis. A second tubing segment is integrated into a right segment of the upper body garment and situated to the right of the vertical axis. The first tubing network is in fluid communication with the second tubing network at a single location crossing the vertical axis. The first tubing network is in operative communication with the central forced air supply so as to distribute air throughout the first and second tubing networks.

The invention relates to an eccentric quasi-zero-stiffness vibration isolation system. The eccentric quasi-zero-stiffness vibration isolation system comprises a central force bearing mechanism and multiple quasi-zero-stiffness execution mechanisms, and the multiple quasi-zero-stiffness execution mechanisms are evenly arranged around the central force bearing mechanism and connected with the central force bearing mechanism; the central force bearing mechanism comprises a bottom supporting base, a force bearing elastic element, a top supporting platform and an external transfer platform which are sequentially connected, the bottom supporting base is used for being connected with a foundation, and the external transfer platform is used for being rigidly connected with an vibration isolation object; and each quasi-zero-stiffness execution mechanism comprises a lateral supporting rod, a lateral elastic element, a rotating connection rod and a support frame, one end of each lateral supporting rod is movably connected with the top supporting platform, the other end of each lateral supporting rod is movably connected with the corresponding lateral elastic element and one end of the corresponding rotating connection rod, the other end of each lateral elastic element is movably connected with the support frame, and the other end of each rotating connection rod is movably connected with the top end of the corresponding support frame. The eccentric quasi-zero-stiffness vibration isolation system can be well suitable for mechanisms with the large vibration displacement and the limited vibration isolator installing space and has the very good isolation effect on low-frequency vibration and high-frequency vibration.

The automatic foot driven and controlled shoe sheath machine with central force application is one improvement of available machine with treading force applied in two sides, and has central single-sided force application mode, rather than two-side force application mode. The present invention makes the treading force reach the destination smoothly, has raised operation stability and reliability, simplified structure and convenient installation and regulation. It is suitable for household, hotel shop and lab with high requirement in cleanness.

The invention relates to a mechanical deformation compensation control method for a forging hydraulic press. The mechanical deformation compensation control method is characterized by comprising the working flow that 1), a signal is input to control the opening degree of a servo valve so as to enable movable beams of the press to rapidly descend; 2), after the movable beams are in contact with a forging piece, the movable beams are turned into work, and the frame is deformed by the central force or eccentric load force; 3), the stress strain gauges pasted on the frame are subjected to stress change when the frame is deformed, the resistance values of the strain gauges change, and measured changed electrical signals are fed back to a system; 4), the fed back signals are compared, the signals and the measured values of a displacement sensor are calculated, the actual size of a workpiece is obtained, and the specific calculation method is given below; 5), when forging is completed once, the movable beams return back to the designated position; and 6), the system stops or returns to the first step to carry out the secondary forging. By the adoption of the mechanical deformation compensation control method, the defects of a traditional control method are overcome, the influence of a mechanical body of the forging hydraulic press under the eccentric load working condition on the force deformation in the forging process is fully taken into account, and the forging precision of the forging piece is improved.

The invention discloses a bracket adapter base, which comprises a base body. A central area for adaptively connecting with a bracket is arranged on the upper surface of the base body; extending feet are connected to the side part of the base body in a sliding and/or swinging way. With the bracket adapter base with the structure, the bracket is fixed in the central area of an upper cover of the bracket adapter base through an air sucking disc, magnetic adsorption, adhesion and other manners according to different types of support brackets; according to the bracket force-bearing direction and different center-of-gravity positions of a mobile phone or a tablet personal computer and the like when in use, the central force-bearing point is adjusted through adjusting the sliding and/or the rotating of the extending feet, so that the phenomenon that the mobile phone or the tablet personal computer is fallen off due to turnover since the bracket is not firmly fixed can be prevented, meanwhile, the problem that an adsorption type or adhesion type bracket cannot be used cooperatively any time any where is solved, the bracket is more stable, and the convenience is provided for users.

The invention discloses a multi-dimensional artificial operation force measuring device for root canal preparation, comprising a dental handpiece for preparing root canal of simulated teeth. The simulated tooth is mounted on a six-dimensional force measuring device for measuring the six-dimensional force information of the simulated tooth during the root canal preparation process. The dental handpiece is provided with a three-dimensional force measuring device for measuring three-dimensional force information that the operator applies to the handpiece during the root canal preparation process.The three-dimensional force measuring device is composed of a central force ball and two three-dimensional force measuring units. The six-dimensional force measuring device of the tooth body is composed of a bottom plate, a six-dimensional force sensor, a U-shaped tooth fixing groove, and a U-shaped tooth baffle. The multi-dimensional artificial operation force measuring device for root canal preparation can obtain multi-dimensional mechanical information applied by the operator's hand and multiple dimensional force information of the simulated tooth in real time, thereby providing direct analysis data for analyzing the influence of the artificial operating force on the root canal formation.

The invention discloses a die clamping mechanism of an injection machine. The die clamping mechanism comprises a back die plate, a link mechanism, a thrust block, a die clamping piston rod, a fixed die plate and a moving die plate. A fixed die is arranged on the fixed die plate. A moving die is arranged on the moving die plate. The back die plate is connected with the fixed die plate through the link mechanism. The thrust block and the link mechanism are fixed. The die clamping piston rod and the thrust block are fixed. The link mechanism comprises a first link assembly and a second link assembly which are in symmetric distribution. The first link assembly and the second link assembly have the same structure. When the fixed die and the moving die are clamped tightly, an angle of 20-25 degrees between the first link assembly and the second link assembly is formed. The die clamping mechanism is advantageous in that the upper and lower surfaces of the moving die plate bear force F1 coming from a front link rod, the center of the moving die plate bears the die-supporting force F2 coming from the moving die, because a V shape is formed by a back link and the front link, the generated force F1 is more concentrated, and after the generated F1 cancels out the central force F2, only little deformation is generated.

A flexible shoe assembly for use in a molding system. The clamp unit of a molding system includes a moving platen and a stationary platen supported by a frame. Tie bars interconnect the moving platen with the stationary platen. The tie bars are secured to the stationary platen and pass through respective openings in the moving platen. Each tie bar is supported and guided within their respective openings by a flexible shoe assembly and wear pad. The flexible shoe assembly has a force redirector for directing force away from a peripheral edge of the wear pad towards a central force area. The flexible shoe assembly also includes a load distributor to distribute the load across the wear pad surface. The flexible shoe assembly includes an upper support that is flexible about a lower support to keep the wear pad in operational contact with the tie bar.

The invention provides an automatic water level control weir gate. The automatic water level control weir gate comprising a water fender, a water fender frame, a rotating force arm assembly, a balanced force arm, connecting rod assemblies, a central force arm shaft, counter weights, a fixing frame, a balanced water cylinder and a shaft seat. The balanced force arm is connected to the central force arm shaft through the connecting rod assemblies connected in series. The central force arm shaft is installed on the water fender frame. The water fender is fixed to the water fender frame. The counter weights are fixed to the balanced force arm through fastening nuts. The position of the central force arm shaft on the water fender frame is adjustable, and therefore the function of adjusting the angle of the balanced force arm is achieved. According to the automatic water level control weir gate, the angle of the weir gate can be adjusted by adjusting the weight of the counter weights so that the upstream water level of the weir gate can be adjusted; if the counter weights are different, the opening angles of the water fender are different, and therefore the purpose of controlling the water level is achieved; the function of adjusting the angle of the balanced arm can also be achieved by adjusting the position of the central force arm shaft on the water fender frame. The whole automatic water level control weir gate is simple in structure and rapid in response.

A dual-vortex fume washing apparatus has a main pipe in which there is a vortex unit. The upper plate of said vortex unit is fixed to the main pipe by its boundary without any gap, and has a central force field barrel on it. A draught tube is arranged on the wall of main pipe above said uppe plate. The distance between the overflow outlet of water sealing unit and the lower plate is not greater than 0.3 m. The high-speed fume flows through two vortex action regions to elongate the contact time between gas, solid and liquid. Its advantages are high effect to remove S and dust, low liquid/gas ratio, and low water content in fume.

The invention relates to a detachable otologic surgical instrument which comprises a handle (1), a locking sleeve (2) and an instrument rod (3). The handle (1) comprises a handle body (1.1) and a handle head (1.2), an outer conical face (1.2.1) is arranged on the front portion of the handle head (1.2), an external thread (1.2.3) is arranged on the rear portion of the handle head (1.2), a contraction groove (1.2.2) of 0.2mm in width is formed in the rear portion of the handle head (1.2), an internal thread (2.4) and an inner conical face (2.3) are arranged on the rear portion of the locking sleeve (2), a first instrument rod inserting hole (2.2) is formed in front of the inner conical face (2.3), second instrument rod inserting holes are formed in the handle head (1.2) and the front portion of the handle body (1.1), and the instrument rod (3) comprises a connection portion (3.1), a conical rod (3.2) and a working head. One-handle multi-head structure of the instrument can meet more clinical needs, so that energy consumption is lowered; enhancing of a central force bearing point is conducive to improving treatment accuracy.

The invention relates to a drive device for driving an element, having the following: a toothed belt drive with a toothed belt, a frame element which forms two opposite connection plates and a connection wall that connects the two connection plates together, at least three elongated force driving elements which are secured to the toothed belt and are aligned parallel to the width (B) of the toothed belt and parallel to one another and which are arranged within the frame element, wherein a central force driving element is rotationally fixed to the two connection plates, and the end sections of each adjacent outer force driving element extend through curved elongated holes of the connection plate, whereby the outer force driving element can be pivoted and the end faces of the outer force driving elements have cylindrical projections, which are designed as axle stubs and each of which has a roller, outside of one of the connection plates, a toothed disc with tooth recesses for catching teeth of the toothed belt and force driving element recesses for catching the force driving elements, a non-linear guide path, at least some sections of which run parallel to the extension of the toothed belt and in which the rollers arranged on the outer force driving elements are guided, and a drive means which is connected to the frame element and is used to connect to the element to be driven.

The present invention discloses a central force deviaction gravitation power amplifier. It is composed of central force deviation device, heavy weight, pulley, machine seat, chain, input small chain wheel and output large chain wheel. The central force deviation device is formed from chain wheel, rolling bearing, solid chain wheel roller, roller path with inner gear, up-and down floating positioning device, large chain wheel, small chain wheel and rolling bearing. The up-and down floating positioning device is composed of positioning roller, support and slideway on the support. The inner gear on the described roller path is spurgear or double helical gear or spiral gear.