314results about How to "Improve support stiffness" patented technology

A fixing device includes a fixing belt to transmit a heat to a print medium, a pressing unit to apply a pressure on the print medium, a heating unit surrounded by the fixing belt to generate the heat and a nip plate disposed against the fixing belt and facing the pressing unit, to form a fixing nip. The fixing device further includes a support element to support the nip plate, and a reflection unit disposed within the fixing belt to reflect the heat radiated from the heating unit toward the support element. The reflection unit is connected to the nip plate to conduct the heat from the reflection unit to the nip plate.

A V-belt type continuously variable transmission according to the present invention includes a drive pulley assembly provided in a drive shaft, a driven pulley assembly provided in a driven shaft, a V-belt looped over both the pulley assemblies, and a transmission case assembly housing both the pulley assemblies and the V-belt. One end of the drive shaft in the shaft direction is coupled to an output side rotation member of a centrifugal clutch, and the other end of the drive shaft is rotatably supported on a boss portion formed in the transmission case assembly.

The invention discloses an independent suspension mounting bracket structure. The independent suspension mounting bracket structure comprises a front independent suspension mounting structure and a rear independent suspension mounting structure. The independent suspension mounting structure comprises a left longitudinal body connecting beam, a right longitudinal body connecting beam, a first transverse mounting reinforcing beam, a second transverse mounting reinforcing beam, a bracket on a shock absorber and a triangular arm mounting bracket on a suspension. The independent suspension mounting structure also meets the mounting rigidity and strength requirements of steering, transmission, braking, cooling systems, air transport, air drop, mooring and securing and the like. The rigidity and the strength of the whole body are enhanced; and the requirements of the whole vehicle for the properties such as whole vehicle bearing, control stability, reliability and the like under the condition of a cross-country pavement with large torque or a severe pavement are met.

A guide rail 13 is formed of a ceramic material having a specific strength of 2x10<7 >mm or more and has a planar part with a surface roughness of 0.5 mumRa or less. Further, the guide rail 13 has a recess 18 for avoiding interference with a part to be attached in which the corner 18a of the recess 18 is formed with a radius of curvature of 0.1 mm or more.

The invention discloses a parallel mechanism. The parallel mechanism comprises a fixed platform, a movable platform, a first branch chain and a second branch chain. The first branch chain and the second branch chain are connected with the fixed platform and the movable platform respectively to form a spatial parallel closed-loop mechanism. Each of the first branch chain and the second branch chain comprises a first unit, a second unit and a first connecting piece, wherein the first unit and the second unit are rotatably connected through the first connecting piece, the first unit and the first connecting piece constitute a first mechanism, and the second unit and the first connecting piece constitute a second mechanism; the first mechanism is movably connected to the fixed platform; the second mechanism is rotatably connected to the movable platform, wherein the first mechanism moves in a first plane and has two degrees of freedom of translation; the second mechanism moves in a second plane and has two degrees of freedom of translation; the first plane is perpendicular to the second plane to each other. By virtue of linearly driving the first mechanism to move, three degrees of freedom of translation and one degree of freedom of rotation of the movable platform can be realized.

The invention discloses an airfoil model force measurement system comprising a pair of supports, a pair of connecting bases, a drag measurement scale, a drag and pitch moment measurement scale, a pair of connecting rods, and a pair of lift measurement devices. The supports are arranged vertically. The connecting bases are respectively arranged on the supports in such a way that the connecting bases can slide along the supports without friction loss. The drag measurement scale is connected to one connecting base. The drag and pitch moment measurement scale is connected to the other connecting base. One end of one connecting rod is connected to the drag measurement scale, one end of the other connecting rod is connected to the drag and pitch moment measurement scale, and the other ends of the connecting rods are connected to the front end of an airfoil model to support the airfoil model between the supports. The lift measurement devices are respectively arranged on the supports, and the lift transfer components of the lift measurement devices are respectively connected to the connecting bases. A double-support system is adopted, and the airfoil model is supported between the supports. The system is of high support rigidity, and the airfoil model has little deformation under the action of gravity and wind load.

A load-detecting device includes a supporting member, a load transfer member, a load sensor, and a load sensor supporting member. The load transfer member is supported by the supporting member and includes an elastic displacement area in which an elastic displacement is generated upon receiving a force from a predetermined direction. The load sensor contacts the elastic displacement area of the load transfer member. The load sensor detects a load based on the elastic displacement. The load sensor supporting member supports the load sensor and is connected to the supporting member. The load transfer member, the load sensor, and the load sensor supporting member are provided in this order along the predetermined direction. The supporting member is provided so as not to be in contact with the load sensor. The load transfer member has a lower stiffness in the predetermined direction than the load sensor.

The invention relates to a dual-clutch automated transmission. An input shaft gear is arranged on an input shaft of an engine. The dual-clutch automated transmission comprises two independent monomer clutches, wherein the driving gear of the odd-gear clutch and the driving gear of the even-gear clutch are meshed with the input shaft gear in different transmission ratios respectively; the driving gear of the odd-gear clutch is fixed on a first secondary shaft; the driving gear of the even-gear clutch is fixed on a second secondary shaft; and the first secondary shaft and the second secondary shaft are arranged on two sides of the input shaft respectively and are parallel to the input shaft. In the dual-clutch automated transmission, an integrated dual-clutch is separated into two monomer clutches and the coaxial structure of the traditional dual-clutch transmission is transformed into a parallel structure, so that the manufacturing and processing difficulty of the dual-clutch transmission is simplified and the cost is reduced.

The present invention provides an arrangement structure of a machine tool which is capable of compactly arranging electrical wires and pipes for coolant and the like without impairing support stiffness for a column, and simplifying the arrangement structure, while adopting a column fixing structure. In the present invention, an arrangement structure of a machine tool 1 includes a bed 2, a table 3 arranged on the bed 2 to be movable in a forward and backward (Z axis) direction, a column 4 fixed upright on the bed 2, a saddle 5 arranged on a front surface of the column 4 to be movable in a left and right (X axis) direction, a spindle head 6 arranged on a front surface of the saddle 5 to be movable in an up and down (Y axis) direction, a spindle 6c supported by the spindle head 6 to horizontally face a front side of the machine, a wire supply portion arranged on the column 4 side, and flexible tubes 23a for spindle side electrical wires having flexibility and arranged on a front side of the column 4, the flexible tubes 23a for the spindle side electrical wires connecting the wire supply portion and the spindle head 6.

The invention relates to a multiple-piece magneto-rheological fluid torque transferring device. The device has a multiple-piece layered structure, so that transferred torque is increased exponentially; the torque transferred by the device can be adjustable within a wide range by changing the current of a magnet exciting coil in the device; and under the condition that a driven shaft is fixed, the device can output adjustable and flexible torque which can be used as protecting links in a damper, a torsion applying device or a transmitting system. The device consists of a fixed supporting part, a driving rotor part, a driven rotor part, the magnet exciting coil, magneto-rheological fluid, a seal part and the like. The fixed supporting part consists of a left bearing end cap, a right bearing end cap, a shell left end cap, a shell right end cap, a left magnet yoke and a right magnet yoke. The driving rotor part and the driven rotor part consist of a driving shaft, driving discs, non-magnetic aluminum sleeves, a driven shaft and driven discs. The seal part comprises a dynamic seal ring, a seal ring baffle plate and a rubber oil seal. The multiple-piece magneto-rheological fluid torque transferring device has the characteristics of low energy consumption, wide torque adjustable range, sensitive response, excellent performance and the like.

The invention belongs to the technical field of flexible robots, in particular to a granular-material-clogging-based hybrid driving rigidity-controllable continuum robot. The robot comprises a plurality of identical single continuum units which are connected end to end in series; each single continuum unit comprises a flexible supporting outer barrel which is provided with multiple flexible supporting outer barrel through holes and is internally coaxially provided with a plastic inner pipeline; a plurality of separation plates are arranged in an annular zone between each flexible supporting outer barrel inner wall and the outer wall of the corresponding plastic inner pipeline, so that each annular zone is divided into multiple sealing cavities which are filled with granular materials; manual pneumatic muscles are inserted in the plastic inner pipelines; upper and lower sealing end covers are provided with upper and lower steel wire passage holes as well as upper and lower sealing end cover through holes; the lower sealing end covers are provided with manual pneumatic muscle drafting holes and sealing cavity drafting holes; and the upper sealing end covers, the flexible supporting outer barrels and the lower sealing end covers are integrally connected by steel wire ropes. The granular-material-clogging-based hybrid driving rigidity-controllable continuum robot is high in supporting rigidity, wide in moving range and accurate in positioning precision.

The invention discloses a periodic-structure vibration isolation device which comprises two panels, multiple vertical rods and multiple oblique rods, wherein the two panels are arranged at intervals; one panel is connected with equipment which needs vibration isolation through a vibration isolator, and the other panel is connected with a mounting base by virtue of a vibration isolator; the multiple vertical rods are arranged in an array and are vertically arranged between the two panels so as to form multiple vibration isolation regions, reinforced rib plates are arranged at connection parts between all vertical rods in each vibration isolation region and the upper and lower panels; one oblique rod is arranged between every two reinforced rib plates which are arranged in opposite angles of each vibration isolation region, and the oblique rods in the two adjacent vibration isolation regions are arranged symmetrically relative to the common vertical rod, so that a vibration isolation structure with periodic arrangement is formed, the band notched characteristic of the periodic structure is formed and effective vibration isolation and noise reduction are realized. The device is capable of not only providing sufficient static rigidity and dynamic rigidity, but also effectively isolating low-frequency narrow-band line spectrums and wide-band vibration transfer which are generated by main and auxiliary mechanical devices and restraining noise radiation caused by vibration transfer.

The invention provides a structure for improving rigidity and stability of a foundation pit steel support; a plurality of fish-belly sill enclosing purlins are arranged on the surrounding of a foundation pit; section steel bracings for connecting the fish-belly sill enclosing purlins are arranged in the middle of the foundation pit; edge corners of the foundation pit are provided with section steel angle braces for connecting the fish-belly sill enclosing purlins; the section steel bracings or the section steel angle braces are formed by more than two parallel section steels; the section steels are connected with each other by bolts in a length direction; the structure is characterized in that transverse and inclined fixed plates are arranged on the parallel section steels in a width direction; the fixed plates connected to the section steels by bolts; and the transverse fixed plates and the inclined fixed plates form triangular stable structures together with the section steels; and the structure for improving the rigidity and the stability of the foundation pit steel support, provided by the invention, has the advantages of large structural rigidity, good stability, small foundation pit deformation, convenience in construction, recyclable material and so on; and purposes of reducing construction period and reducing construction cost are achieved.

A system, including methods and apparatus, of tuning a mass-damping apparatus to reduce dynamics forces on a wind tunnel model during wind tunnel testing. The mass-damping apparatus is coupled to a wind tunnel model and may comprise first and second pressure chambers containing a gas, a mass configured to move back and forth between the pressure chambers in a substantially airtight manner and thereby to alter gas pressure within each pressure chamber, at least one spring configured to exert a position-dependent force upon the mass, and a passageway configured to allow the gas to pass between the chambers.

The invention discloses a satellite-borne solid-surface deployable antenna which is composed of a solid-surface reflector, a deployable mechanism and a driving component. The deployable mechanism is composed of multiple synchronous three-bar deployable units and synchronous two-bar deployable units combined in an array. The solid-surface reflector is composed of a plurality of rigid sheets. The driving component includes a driving motor and an elastic energy storage element. The solid-surface reflector and the deployable mechanism are connected through a universal hinge. Under the action of the driving motor, the solid-surface reflector realizes first spatial synchronous deployment through the deployable mechanism. Under the action of the elastic energy storage element and a compression spring, the solid-surface reflector realizes second spatial synchronous deployment. After deployment, any two adjacent panels of the solid-surface reflector are hinged and locked by a locking mechanism,and the whole antenna is stabilized in a fully deployed state. The satellite-borne solid-surface deployable antenna has the characteristics of large deployment aperture, high deployment and support stiffness, and high precision of surface profile, and can be used as a reflector or a collector in space or on the ground.

A rear door structure in which a rear door is openably and closably provided on a rear portion of a vehicle body, including a door panel, wherein: the door panel includes an upper door panel and a lower door panel provided on the lower portion of the upper door panel; and a lower edge portion of the upper door panel and an upper edge portion of the lower door panel mutually overlap so as to form a lateral beam having a closed cross section and extending in a vehicle width direction.

The invention discloses a sliding platform and a construction method for separately mounting grid structures on high altitudes. The sliding platform for separately mounting the grid structures on the high altitudes is arranged in an industrial factory building. The industrial factory building is provided with crane beams, and overhead crane tracks are arranged on the crane beams. The sliding platform for separately mounting the grid structures on the high altitudes comprises a grid structure type sliding platform, a scaffold operating platform and pulling equipment. The grid structure type sliding platform is slidably arranged on the overhead crane tracks via a plurality of sliding rollers; the scaffold operating platform is arranged on the upper surface of the grid structure type sliding platform; the pulling equipment is connected onto the grid structure type sliding platform, so that the grid structure type sliding platform can slide along the overhead crane tracks. The mounting quality of the grid structures, with bolt-sphere joints, of the industrial factory building can be sufficiently guaranteed, the time and labor can be saved, and the safety of staffs for constructing the grid structures on the high altitudes and the safety of construction staffs below the staffs can be guaranteed. The sliding platform and the construction method have the advantages of flexibility, convenience, speediness and low cost. Besides, merits can become obvious along with increase of ratios of the longitudinal lengths to the span of the grid structure.