48results about How to "Small turning torque" patented technology

The present invention discloses a composition method of a gantry four-dimensional automatic measurement platform for detecting photochromic performance of display screens and a gantry four-dimensional automatic measurement platform using the method. The present invention relates to the automatic measuring technology of the photochromic performance of display screens, and comprises a platform base, a gantry frame, an X-axis moving mechanism, a Y-axis moving mechanism, a Z-axis lifting mechanism, and a display screen-carrying rotating platform. By moving the mechanisms to control the circuit, the four-dimensional automatic measurement platform for detecting photochromic performance of display screens is flexibly controlled to accomplish the three-dimensional move of the photochromic measuring instrument and the accurate one-dimensional rotation of the display screen to be measured, the present invention is characterized in stable movement of the photochromic measuring instrument, small rotation radium of the display screen, novel structure, small driving power needed, small size, light weight, low cost, rapid measuring speed, high reliability and so on. The present invention can be widely applied to the photochromic automatic detecting system of LCD or LED television screen, display screen, or mobile phone screen and so on, and the present invention can precisely adjust the coordinate position of the test points and the angle of the display screen intelligently according to the detecting requirement of photochromic performance of the display screens under the computer management, and rapidly accomplish the detection of photochromic performance.

A turnplate for an automobile seat belongs to the technical field of automobile parts and comprises a lower plate, an upper plate, a middle plate, a lower ball retainer in rolling sliding fit between the lower plate and the upper plate, and an upper ball retainer in rolling sliding fit between the upper plate and the middle plate; the middle plate is fixedly connected to the lower plate through a connecting pin, the upper plate is provided with a locking device for locking and unlocking uses, the locking device comprises a lock pawl, a fixing sheet, a lug, a rotary shaft and a spring, the lock pawl rotates around the rotary shaft and runs through a lock hole arranged in the middle plate, and a lower support and an upper support for reinforcement use are added to the lower plate and the upper plate respectively. The turnplate has the advantages that the turnplate has small shaking clearance and small rotational torque; locking reliability is guaranteed; the turnplate is high in release strength; the turnplate never generates noise during moving; the turnplate is simple in structure, small in size, light in weight, convenient to assemble, and convenient to manufacture; the turnplate is widely applicable and connectable to any seat.

The invention discloses an eccentric electric ball valve which comprises a valve cap, a valve body, a support shaft gasket, a support shaft, an eccentric ball, a valve stem, an O-shaped ring, a speed reducer and a motor, wherein the speed reducer is connected with the valve stem, the head of the valve stem is in a geometric form matching with an eccentric hole arranged on the upper part of the eccentric ball, the valve stem is consequently enabled to drive the eccentric ball to rotate when opening or closing the valve, thus a structure that the eccentric ball surface makes cam type movement with the valve stem is formed, the lower end of the eccentric ball is supported and positioned by the support shaft, and a sealing seat and a sealing ring are arranged between the valve body and the eccentric ball to adjust a pressing force. The eccentric electric ball valve adopts the eccentric sphere which keeps no contact with the sealing ring for most of time of rotating, thereby reducing friction, driving torque and power consumption, and saving energy; the contact between the sphere and the sealing ring is reduced and consequently the wear of the sealing ring is also reduced, thereby greatly improving the service life of the valve.

A constant temperature mixed valve core includes a fluid switch control unit and a thermostatic control unit, wherein, the fluid switching control unit is connected together with the thermostatic control unit through a temperature conditioning mechanism of the thermostatic control unit; the fluid switching control unit includes a shell of a determined internal area, a fixed lower ceramic chip arranged in the internal area and provided with a center trepanning and at least one grooving, and an upper ceramic chip arranged in the shell internal area, rotatable on the lower ceramic chip and provided with a center trepanning and at least one grooving; a temperature regulation mechanism perforates the center of the shell and combines with the upper ceramic chip to perform operations, drives the ceramic chip to move so that the grooving of the upper ceramic chip is supposed with the grooving of the lower ceramic chip to form a state that the outside water outlet is open. The fluid switching regulator control unit is used to control the mixed water that has been completely mixed evenly and reaches the setting temperature, adjusts the opening angle of the control switch to control the output water flow of the mixed water that has been completely mixed evenly and reaches the setting temperature and the open and shut of the water output, which has features of easy modulation and long service life.

The invention relates to an azimuth rotation static-pressure support system of a tower solar thermal power generation heliostat. The tower solar thermal power generation heliostat includes a tower frame, a hydraulic motor speed reducer, an azimuth rotating unit and a pitching motion unit. The system designs chute and slide ring structures, and injects oil to the lower bottom end surface of a slide ring and the upper flat end surface of a chute through a pressure reducing valve, a one-way valve and a capillary throttling valve, so that the lubricating performance is greatly improved, the rotating torque of the tower heliostat azimuth is reduced by 70% compared with the torque of a mechanical drive, the azimuth rotation driving torque is largely reduced, the sizes of the driving device and the hydraulic motor are both largely reduced, and the cost of the azimuth driving device is correspondingly reduced.

A dual ring rod-shoulder seal consists of a sealing ring, a clamp ring and a spherical or taper rod-shoulder, wherein, the material of the sealing ring is designed according to the ultimate strength load and is permanently automatically exempted from the ultimate strength load so as to work according to self-sealing. An independent dual valve rod seal consists of a dual ring rod-shoulder seal, a triangle-section loop bar seal and an isolated match pair. In the process of installation and compaction, when the torque of the valve rod is significantly increased, the independent dual valve rod can ensure that the isolated match pair, the rod-shoulder seal and the post seal become effective automatically and simultaneously and independently bear the ultimate medium pressure, and provide double assurance to the leak tightness of the valve rod, without mutual interference.

The invention discloses an all-welded ball valve in the technical field of valves. The all-welded ball valve comprises a valve body, wherein a valve cavity is opened in the valve body, a valve ball is arranged in the valve cavity, the valve ball is supported on the valve cavity by a valve seat, a valve cover is arranged at the both ends of the valve body, a medium channel communicated with the valve cavity is opened in the valve cover, a stop step is opened in the end surface butted with the valve body, of the valve cover, and the valve body is supported on the stop step; a welding groove for welding the valve body and the valve cover is formed between the valve body and the valve cover, a heat isolation groove is opened below the welding groove, a gap is reserved between the valve body and the valve cover, and located in the bottom of the welding groove, and the gap is communicated with the welding groove and the heat isolation groove. According to the all-welded ball valve disclosed by the invention, the gap communicated with the heat isolation groove is formed in the bottom of the welding groove, thus ensuring adequate welding between the valve body and the valve cover, avoiding the occurrence of insufficient welding, reinforcing the connection reliability of the valve body and the valve cover, ensuring sealing performance, reducing the repair rate of the ball valve, and prolonging the service life of the ball valve.

The invention discloses a butterfly valve with an O-shaped sealing ring and a bearing, comprising a valve body, a valve rod and a butterfly plate, wherein the butterfly plate is arranged in the valve; the valve rod is arranged on the valve body in a penetrating manner and is fixedly connected with the butterfly plate in the valve body; the O-shaped sealing ring and the bearing are arranged between the valve rod and the valve body; and the O-shaped sealing ring is adopted as a sealing structure between the valve rod and the valve body, and compared with the sealing structure formed by adopting flexible graphite and a packing gland, not only are the assembly and the disassembly of operators convenient, but also the rotating torque of the valve rod also can be reduced, and the sealing performance is more reliable. In addition, the bearing is added between the valve rod and the valve body, the rotating torque of the valve rod can be further reduced, and the labor intensity of the operators is greatly reduced.

The invention relates to the technical field of solar photovoltaic power generation, and particularly relates to a supporting frame for a photovoltaic power generation tracking device. The supporting frame for the photovoltaic power generation tracking device comprises a Z-shaped supporting frame body; the supporting frame body has a frame structure and comprises an upper frame and a lower frame parallel mutually; the upper frame and the lower frame are connected via a middle frame; and the middle frame is provided with a bearing mounting seat. The supporting frame adopts the frame structure; while the strength of the supporting frame is ensured, the overall weight of the supporting frame is lessened, rotation of the supporting frame is easier, the rotational moment on the photovoltaic power generation tracking device is reduced, and the load of the photovoltaic power generation tracking device is reduced. Through arranging the supporting frame in a Z shape, overturning moment applied to a photovoltaic panel by partial wind load can be eliminated, and the structure of the supporting frame is more stable. The bearing mounting seat of the device can move on a certain plane to arrive at any position, a free aligning role on the bearing can be realized, the operation is simple and convenient, and the working efficiency is improved.

The invention provides a cutter of a shield tunneling machine, and the shield tunneling machine. The cutter of the shield tunneling machine comprises a cutter body, a center installation body and a long-diameter spoke, wherein the center installation body is disposed on the cutter body in a raised manner and located at the center of the cutter body; the long-diameter spoke is connected to the center installation body, a jet hole is formed in the long-diameter spoke and located in the outer wall face of the side, turning the back to the cutter body, of the long-diameter spoke; the shield tunneling machine comprises a shield body, the cutter and a supply mechanism, and the cutter is disposed on the shield body in a rotatable manner; and the supply mechanism is disposed on the shield body, and the supply mechanism comprises a liquid storage tank, a supply pipeline and a conveying pump. The cutter of the shield tunneling machine, and the shield tunneling machine provided by the invention have the beneficial effects that the problems in the prior art that jet hole configuration on the cutter of the shield tunneling machine is irrational, so a muck modifier jetted by the jet hole cannotget full contact with a cut excavation face, muck improvement effects cannot be realized then, and thus cutter abrasion losses are large, shield construction cost is increased and shield constructionefficiency is reduced can be solved.

The invention discloses a miniature high-temperature and high-pressure electric rotary valve. The miniature high-temperature and high-pressure electric rotary valve comprises a cylindrical valve body, a valve core, a valve rod and a limiting connecting shaft, wherein valve seat holes are symmetrically formed in both sides of a valve core hole in the valve body, floating valve seats are arranged in the valve seat holes, the floating valve seats are matched with the valve core through curved surfaces, a port P, a port A and a port B are formed in the right end of the valve body, the three oil ports are all axially formed and are positioned in the same end surface, a part, which is communicated with the port P, of the valve core forms a cavity P, parts, which are respectively communicated with the port A and the port B, of the two floating valve seats form a cavity A and a cavity B, and the valve core is driven to reverse leftwards or rightwards by a motor, so that the port A is communicated with the port A or the port B to form a two-position three-way reversing valve. The miniature high-temperature and high-pressure electric rotary valve has the advantages of small size, compact structure and reliable sealing performance and is compatible with the small installation space of an annular pipeline, the reliable reversing of an oil system can be guaranteed, and the miniature high-temperature and high-pressure electric rotary valve can be applied in high-temperature and high-pressure severe environments such as power plants, petroleum and natural gas exploitation and the like.

Disclosed is an in-vitro magnetic anchoring system for a magnetic anchoring surgical instrument. The in-vitro magnetic anchoring system comprises a permanent magnet set, a magnetic shielding case and a pushing device. The permanent magnet set is of a section type structure and is formed by stacking a plurality of cylinder sub magnets which are completely the same in the axial direction. The magnetic shielding case enables an external magnetic field generated by the permanent magnet set to be constrained in the long axis direction of the permanent magnet set, so that the intensity of the magnetic field around the magnetic shielding case is weakened. The pushing device helps the permanent magnet set to go in and out of the magnetic shielding case. The in-vitro magnetic anchoring system can further comprise support ring devices, the support ring devices can be fixed at any position on the side face of the magnetic shielding case through positioning screw rods and be connected with the magnetic shielding case through connecting nuts on the support ring devices, and accordingly two in-vitro magnetic anchoring system bodies can be combined. According to the in-vitro magnetic anchoring system for the magnetic anchoring surgical instrument, magnetic force can be adjusted according to the thickness of the abdominal wall of a patient, the interference to other surgical instruments by the permanent magnets in the system can be reduced, the mutual interference between the in-vitro magnetic anchoring system bodies can further be resisted, collaborative matching of a plurality of in-vitro magnetic anchoring system bodies can be achieved, and the in-vivo locating and navigation requirements of a special magnetic anchoring surgical instrument are met.

The invention discloses an automobile air conditioner HVAC air guide plate, which comprises an air valve rotating shaft arranged on an automobile air conditioner HVAC and a air valve plate connected with the air valve rotating shaft, wherein an air valve plate wing is arranged on the air valve plate; when the automobile air conditioner HVAC needs to be switched to the air blowing mode, an air valve motor drives the air valve rotating shaft to rotate, and further drives the air valve plate to rotate in a following way; air pressure is exerted onto the air valve plate and the air valve plate wing, under the guide effect of the air valve plate wing, t the air generates ascending force on the air valve plate in the air valve plate wing position through the air pressure acting onto the air valve plate wing by the air; a part of air pressure on the air valve plate is balanced away through the ascending force of the air valve plate, so that the twisting moment of the air valve rotating shaft is reduced; the air valve plate is smoothly opened; the air guide plate is smoothly opened; the fast and successful conversion of the air blowing mode can be realized.

The invention discloses a novel packer release joint comprising an upper joint body, a bearing cover, a middle sleeve, an outer sleeve, a central spindle, a lower joint body, a back-inserting shear pin, a shearing pin I, an elastic clamping claw, a clamping claw sleeve and a tail sleeve; the lower end of the upper joint body is connected with the upper end of the central spindle through the middlesleeve, the upper end of the middle sleeve makes contact with the lower end of the bearing cover, the exterior of the lower end of the central spindle is sleeved with the tail sleeve, the exterior ofthe upper end of the lower joint body is sleeved with the clamping claw sleeve, the exterior of a stepped shaft of the upper joint body is sleeved with the bearing cover, and a steel ball is arrangedat the junction of the upper joint body and the bearing cover; and the exterior of the central spindle is sleeved with the elastic clamping claw, the exterior of the elastic clamping claw is sleevedwith the clamping claw sleeve, the clamping claw sleeve is connected with the central spindle through the shear pin I, the elastic clamping claw is connected with the central spindle through the back-inserting shear pin, and the exterior of the middle sleeve is sleeved with the outer sleeve. The novel packer release joint has the beneficial effects that the neutralization point does not need to befound, a release can be easily buckled reversely only by downwards pressing a certain tonnage and forwards rotating a pipe column, and the novel packer release joint can be used for a mechanical packer and a hydraulic packer.

The invention discloses a double-valve-seat regulating ball valve comprising a valve body, valve seats and a valve element. The valve body comprises a main valve body and two auxiliary valve bodies fixed to the two sides of the main valve body; the two valve seats are located between the two auxiliary valve bodies, and the two valve seats are located on the opposite two sides of the valve body inthe radial direction; and the valve element is located between the two valve seats. The double-valve-seat regulating ball valve solves the problems that in the prior art, the valve element of the ballvalve wears quickly and the rotating torque of a valve stem is larger, and the aims of improving the two-way sealing performance of the ball valve, improving the adjustment precision and reducing thevalve element wear and rotating torque are achieved.

The invention belongs to the technical field of pipeline valves, and discloses a multifunctional ball valve. The multifunctional ball valve comprises a valve body, a valve ball, a handle and a valve seat; the valve body is provided with an A port, a B port, a C port and a D port and four control chambers respectively communicating with the A port, the B port, the C port and the D port; the valve ball is composed of a ball body and a connecting end; the ball body is provided with a through hole in the radial direction and is located at an intersection position of the four control chambers; theconnecting end is connected with the handle, and the over-flow area of the through hole is adjustable; the valve seat is arranged in the control chambers, and the valve seat can reciprocate to form aselective contact seal with the outer surface of the ball body; when the handle drives the valve ball to rotate, the valve seat remains in a position where the valve seat is out of contact with the valve ball; and when the handle drives the valve ball to connect the A port and the C port or connect the B port and the D port, the valve seat moves again and maintains in a position in contact seal with the valve ball. The multifunctional ball valve of the invention can reduce the wear between the valve ball and a sealing element, improve the service life and the sealing effect of the sealing element, and can realize a throttle control function.

The rubber sealing ring comprises a sealing ring body, a dovetail groove is formed in the upper end of the sealing ring body, a mounting part is arranged at the lower end of the sealing ring body, a triangular fulcrum is arranged at the left end of the sealing ring body, a first sealing limb and a second sealing limb are arranged at the right end of the sealing ring body, and a gap facilitating expansion deformation is reserved between the first sealing limb and the second sealing limb. The front end of the first sealing limb is provided with a first inclined surface and a second inclined surface which intersect to form a sealing lip extending forwards, the sealing lip is in contact fit with a first sealing surface of an inner ring or an outer ring of the bearing, the second sealing limb is matched with a radial groove of the bearing, the upper end surface of the second sealing limb is of a multi-section inclined surface structure, and the lower end surface of the second sealing limb is of an inclined surface and arc structure; the front end of the second sealing limb serves as a sealing lip to be in contact fit with the second sealing face in the radial groove, a protruding blocking shoulder is arranged on the lower side of the second sealing limb, and the blocking shoulder is in contact fit with the blocking shoulder of the fixing groove. The device can effectively prevent leakage of lubricating grease, and has the advantages of good pressure maintaining performance, small rotating torque, convenience in installation and use and the like.

The invention provides an automobile shock absorber with a shock energy recovery effect and a new energy automobile, and belongs to the field of shock absorbers. The automobile shock absorber comprises a power conversion unit, a speed increasing unit and a power energy storage unit, and the power conversion unit is used for converting the reciprocal rectilinear motion caused by jolt vibration of wheels into rotary motion; the speed increasing unit is connected with the power conversion unit and is used for increasing the speed of the converted rotary motion; and the power energy storage unit is connected with the speed increasing unit and a generator, and is used for storing power and outputting the stored power. The automobile shock absorber is simple and reliable in structure, and energy recycling and reusing are convenient. The new energy automobile comprises a storage battery, an electric generator and the automobile shock absorber with the vibration energy recovery effect, the power energy storage unit of the automobile shock absorber is connected with the electric generator, the electric generator is connected with the storage battery, the storage battery is charged in the automobile running process, and then the endurance mileage of the automobile is increased.

The invention relates to a valve assembly at a high-temperature end for exhaust gas recirculation. The valve assembly comprises a motor, a valve cover kit and a valve body which are arranged in sequence; a valve plate and a valve rod driving the valve plate to rotate are arranged in the valve body, the valve rod is connected with a motor shaft through a transmission pair in the valve cover kit, and an upper metal sealing kit and a lower metal sealing kit are arranged at the upper end and the lower end of the valve plate along the valve rod; and a ventilation space is arranged between the valve cover kit and the valve body, and a cooling water channel and a flow guide ring are arranged around the valve rod in the valve cover kit. According to the valve assembly at the high-temperature end for exhaust gas recirculation, all-metal sealing is used on the upper side and the lower side of the valve plate, and the high-temperature performance of a sealing piece is improved, so that sealing is stabler and more reliable; meanwhile, deep groove bearings are used for supporting a driving gear and a sector gear, so that supporting friction is reduced, and the rotating torque of the valve rod is reduced; and the problems that a traditional EGR valve is large in power consumption, unstable in transmission, short in service life and the like are solved, so that the stability and reliability of an EGR system of medium and heavy vehicles are improved.

The invention discloses a device for avoiding condensation of salt blocks in high-salinity wastewater transportation and a use method therefor, and relates to the technical field of high-salinity wastewater transportation devices. The device is placed on a transportation vehicle, and comprises a waste liquid barrel and a salt scraping unit arranged in the waste liquid barrel; the salt scraping unit is provided with a scraping mechanism attached to the inner side wall and the bottom wall of the waste liquid barrel and a power output shaft which is coaxial with the waste liquid barrel and used for driving the scraping mechanism to rotate in the circumferential direction. When driving energy converted by a wind energy driving assembly in the device can independently drive the scraping mechanism to rotate at a preset rotating speed, the wind energy driving assembly independently drives the scraping mechanism to clean the inner wall and the bottom wall of the waste liquid barrel at the preset rotating speed. When high-salinity wastewater is transported, a power output shaft drives the scraping mechanism to rotate at a preset speed, on one hand, the high-salinity wastewater is in an activated state, condensation of the high-salinity wastewater is avoided, and on the other hand, salt particles condensed on the inner side wall and the bottom wall of the waste liquid barrel can be scraped off, and more and more salt particles are prevented from forming the salt blocks.

The invention relates to a hinging assembly used for connecting a lower support of an EPS steering column with an instrument crossbeam. The hinging assembly is assembled in an installation hole of the lower support of the steering column in an interference manner and comprises a hinging shaft core, a sliding bearing and a hinging lining. A threaded through hole is formed in the middle portion of the hinging shaft core in the axial direction. A flange face is arranged at one end of the hinging shaft core and attached to the inner side face of the lower support of the steering column. The other end of the hinging shaft core is attached to the instrument crossbeam through a fastening bolt. The hinging shaft core is sleeved with the hinging lining. The sliding bearing is arranged between the hinging shaft core and the hinging lining. Compared with the prior art, the hinging assembly is compact in structure and high in practicality, the impact caused by the torque on the lower support and the instrument crossbeam in the reversing process is effectively reduced, and the hinging shaft core is prevented from rotating in the bolt driving process when the hinging assembly is installed.