281results about How to "Increase the range of motion" patented technology

The invention relates to a bionic antenna and thermal expansion based macroscopical-microcosmic driving rotary platform, and belongs to the precision driving field. A macro piezoelectric driving unit performs clockwise macroscopic driving for a columnar rotary body through enveloping type flexible hinges and the elastic deformation of bionic wedge-shaped antennas; a microcosmic thermal expansion driving unit generates controllable thermal expansion deformation in intermittent places of the bionic wedge-shaped antennas through thermal conduction of a high-temperature ceramic heating rod so as to further drive the antennas to perform micro linear displacement to realize the microcosmic driving of the columnar rotary body; the columnar rotary body is embedded in the rotary body of a ceramic ball bearing in an interference fit manner, and a rigid planar reflective plate is mounted in the groove of the rotary body in an embedding manner; and the rigid planar reflective plate is used for a non-contact type optical displacement measurement system to perform quantitative detection on the rotary deformation of the columnar rotary body. The macroscopical-microcosmic driving rotary platform has the advantages of compact structure and capability of satisfying the requirements of the fields, such as micro-nano operation, micro-nano machining, precision optics, spaceflight and medical engineering and the like, on the micro-nano-level precision driving and positioning.

The invention discloses a deepwater aquaculture net cage using wave energy. The deepwater aquaculture net cage using the wave energy comprises a net cage (4), an anchor chain (2) and a foundation pillar (1). One end of the anchor chain (2) is connected with the net cage (3), the other end of the anchor chain (2) is connected with the foundation pillar (1), and the foundation pillar (1) is fixedly installed on the seabed. The deepwater aquaculture net cage using the wave energy further comprises an automatic feeding system, an automatic subsiding system, a remote monitoring system and an ocean power generation system using wave energy. The ocean power generation system is installed on the periphery of the frame of the net cage, the automatic subsiding system is installed on the upper layer frame of the net cage (4), the automatic feeding system is installed on the middle portion of the top portion of the net cage (4), one terminal of the remote monitoring system is installed on the net cage (4) under water, the other terminal is installed on a controller on shore, and two terminals are connected through a general packet radio service (GPRS) network. And therefore, the electric energy generated through the wave energy supplies energy needed by each system in a deepwater cage aquaculture process.

The invention discloses a spatial three-dimensional micro-displacement precise positioning device which comprises a fixed base and a moving table, wherein the moving table is connected with the fixed base through three connecting mechanisms having a displacement amplifying function and other two connecting mechanisms arranged oppositely respectively; the other two connecting mechanisms play the effect of displacement decoupling and enhance the rigidity of a platform; the connecting mechanisms having the displacement amplifying function amplify piezoelectric ceramic output displacement by a piezoelectric ceramic driver and a secondary cascaded lever amplification mechanism which is arranged symmetrically, so that the working stroke of the positioning device is enlarged and the displacement decoupling function can be realized.

The invention relates to a piezoelectric hydraulic linear motor which pertains to the field of mechanical-electrical-hydraulic integration. An inlet of a piezoelectric pump is connected with an accumulator by a pipeline; the accumulator is also connected with a reversing valve by the pipeline; the reversing valve is connected with an outlet of the piezoelectric pump by the pipeline; the reversing valve is also connected with a cavity body of a hydraulic cylinder. The piezoelectric hydraulic linear motor has the advantages of novel structure, being capable of effectively converting the micro-amplitude reciprocating vibration of piezoelectric ceramic to the micro liner motion of a piston of the hydraulic cylinder by utilizing fluid media to transmit power, obtaining relatively large driving power and motion displacement and realizing precise driving and control by a method of accumulating a liquid drop for one time; meanwhile, the piezoelectric hydraulic motor has simple structure and control, small volume and good sealing property and can be applied to marking parts.

The invention discloses a double-reed large-turning angle flexible joint, relates to the technical field of mechanical kinematic pairs, and solves the problem that the conventional flexible hinge is small in motion range. The double-reed large-turning angle flexible joint is characterized in that a first shell is integrally formed by a 210-degree arc plate and a 90-degree arc plate; the side wall of the 210-degree arc plate and the side wall of the 90-degree arc plate are integrally connected, and the thickness of the 90-degree arc plate is smaller than that of the 210-degree arc plate; the 210-degree arc plate of the first shell is arranged outside a 90-degree arc plate of a second shell, the 90-degree arc plate of the first shell is arranged inside a 210-degree arc plate of the second shell, and a gap is formed between the first shell and the second shell; a first flexible plate is inserted into the first shell and the second shell through a first through groove and a second through groove; a second flexible plate is inserted into the first shell and the second shell through the remaining parts of the first through groove and the second through groove. The double-reed large-turning angle flexible joint is applied to the field of large-stroke precision transmission mechanisms and flexible transmission.

A cartridge includes a housing having a medium chamber defined therein for accommodating the recording medium and also having at least one access opening defined therein, a slide shutter slidably mounted on the housing for movement between an opened position in which the access opening is opened and a closed position in which the access opening is closed, and a biasing member for biasing the slide shutter towards the closed position. The biasing member is in the form of a twin-coiled torsional spring including first and second coils connected together by means of a bridge and first and second spring arms extending outwardly from the first and second coils, respectively. The first spring arms has a free end engaged to the slide shutter and the second spring arm has a free end engaged to a portion of the housing.

The invention discloses an all-shearing type magneto-rheological damper. The all-shearing type magneto-rheological damper is characterized by comprising an outer cylinder, an inner cylinder and a ball screw pair, wherein the inner cylinder is coaxially arranged with the outer cylinder, shearing discs are fixed by the ball screw pair, the inner wall of the inner cylinder is provided with electromagnetic coils and sharing ring sets corresponding to the shearing discs one by one, magneto-rheological liquid is filled in a cavity of the inner cylinder, at least one electromagnetic coil is arranged between adjacent shearing rings fixed on the inner wall of the inner cylinder, and the shearing discs, the shearing rings and the inner cylinder form a closed flux loop. On the premise of keeping same external size and energy consumption of a magneto-rheological damper, null-field viscous damping of the magneto-rheological damper is reduced, controllable damping ratio range is enlarged, and the all-shearing type magneto-rheological damper is added with potential for application to a high-speed impact/vibration control system. Besides, service efficiency of the magneto-rheological liquid in the magneto-rheological damper is improved, and cost of the magneto-rheological damper is effectively reduced.

The invention discloses a bottle pushing device for a freeze dryer, which comprises a bottle pushing block, a motor part and a transmission part. The transmission part is used for conveying rotation into linear motion, and the bottle pushing block, the transmission part and the motor part are sequentially connected. The bottle pushing device for the freeze dryer is compact in structure and small in occupation space.

The invention relates to a device and a method for the gentle placement of a patient in a defined position. In order to provide a device for the placement of patients which both allows gentle positioning and at the same time holds the patient in a defined position, the device according to the invention comprises a mattress having a surface able to adopt a flexible state, as a result of being subjected to a first control signal, and a rigid state, as a result of being subjected to a second control signal, a cushion which is filled with a fluid, rests on the mattress and comprises a flexible wall in the region of the patient or the body part of the patient resting on the cushion, and a fluid pump which is connected via a valve to the fluid in the cushion and via which the internal pressure and/or the internal volume of the cushion may be adjusted to a predetermined value.

The invention discloses a vertical spiral vibrating screen capable of greatly increasing the area of a screen and lengthening the movement stroke of powder. The vertical spiral vibrating screen comprises a base, a screen arranged on the base through a plurality of supporting springs, a vibrating device connected with the lower end of the screen and positioned in the base, a bin arranged at the upper end of the screen and a feeding valve arranged in the bin. The screen comprises a shell, a middle upright post and a screen net. The shell is a cylinder provided with a cover plate and a bottom plate, and the lower part of the shell is provided with a fine powder feeding hole and a coarse powder feeding hole; the middle upright post is vertical to the center of the shell; and the screen net comprises a bottom screen net, a lateral screen net and a top plate, wherein the inner edge of the bottom screen net is fixed on the middle upright post and is downwards spiral around the middle upright post, the lateral screen net is arranged coaxial with the middle upright post and is downwards spiral around the middle upright post, the lower end of the lateral screen net is connected with the outer edge of the bottom screen net, and the inner edge of the top plate is fixed on the middle upright post and is downwards spiral around the middle upright post.

A variable-magnification optical system has a plurality of lens groups that image a light beam from the object side on an image sensor, an optical aperture stop that intercepts part of the light beam heading for the image sensor, and a reflective mirror that changes the optical axis of the light beam of which part has been intercepted by the optical aperture stop. The plurality of lens groups include at least lens groups arranged in a positive-negative-positive-positive optical power arrangement, and at least two of the lens groups are moved for zooming from the wide-angle end to the telephoto end. The variable-magnification optical system fulfills a prescribed conditional formula.

The invention relates to an adjusting device of a movable lens, which is used for adjusting the axial position of a movable piece relative to a fixed piece. The adjusting device of a movable lens comprises a main lens cone, a circumference wedge and a plurality of rollers which are all arranged along an optical axis in sequence, wherein the fixed piece is fixed in the main lens cone; the circumference wedge continuously expands along the axial thickness of the circumference direction of the main lens cone; the circumference wedge can be rotationally arranged below the main lens cone; shafts of the rollers are fixed on the movable piece; and the rollers are placed on the wedgy surface of the circumference wedge and roll along the wedgy surface. When the rollers roll on the wedgy surface, the fixed piece can axially move. The adjusting device of the movable lens has high adjusting precision and good repeatability. The movable piece has large tendency of movement and good linearity.

The invention discloses a soil grinding and screening device, which comprises a transmission device, a grinding mechanism, a screening system and a worktable, wherein the power of the transmission device is provided by a grinding motor; the grinding motor drives a rotary plate to rotate through a belt transmission mechanism; a connecting rod drives a stroke doubling mechanism to increase a grinding stroke, and a slider horizontally moves in a reciprocating manner; when grinding, a grinding rotary drum can vertically move freely along a chute of the slider along with rugged surfaces of soil, and motion smoothness is guaranteed as much as possible; the grinding mechanism grinds the soil to be crushed by horizontal reciprocating motion of the grinding rotary drum in a grinding tank, the motion stroke of the rotary drum is guaranteed to the maximum degree, and the soil is flexibly ground; and the soil which meets the crushing requirement is automatically screened by the screening system in a low-noise and dust-free manner.

The invention provides a feeding device. The feeding device comprises a feeding inlet, a stirring cavity and a feeding cavity, wherein the stirring cavity is arranged between the feeding inlet and the feeding cavity; a feeding threaded rod penetrates through the feeding cavity; an arc breaking elastic piece is arranged in the stirring cavity, one end of the arc breaking elastic piece is fixedly installed in the combination position of the stirring cavity and the feeding inlet, and the other end of the arc breaking elastic piece is suspended; a stirring mechanism matched with the arc breaking elastic piece is further arranged in the stirring cavity and comprises a rotary shaft and a stirring paddle; in the rotation process of the stirring mechanism, the stirring paddle periodically makes contact with the arc breaking elastic piece, and the contact position of the arc breaking elastic piece deforms elastically, so that the suspended end of the arc breaking elastic piece is driven to swing, and arc breaking is carried out on materials; when the stirring paddle and the arc breaking elastic piece are separated, the arc breaking elastic piece recovers the natural state. According to the feeding device, the arc breaking elastic piece is triggered by the stirring mechanism to swing vertically, arc breaking is carried out on the materials within a large range, the effect that the feeding threaded rod receives materials uniformly is guaranteed, and the discharging precision is effectively improved.

The invention discloses a translation transfer device for alternate traction of support cylindrical parts, realizes automatic improvement of the product transfer, and solves the problems of low safety and high guide rail butt joint precision requirement in the prior art. The device comprises a movable base, a static base, support frames and transfer frames. The support frames comprise first horizontal moving mechanisms and first lifting mechanisms; the first lifting mechanisms are fixed at the upper ends of the first horizontal moving mechanisms; the two support frames are mounted on the movable base in the same direction; the transfer frames comprise second horizontal moving mechanisms, second lifting mechanisms and annular holding mechanisms; the second lifting mechanisms are mounted at the upper ends of the second horizontal moving mechanisms; the annular holding mechanisms are mounted at the upper ends of the second vertical lifting mechanisms; and the two transfer frames are mounted on the static base in the same direction. After the movable base and the static base are in butt joint, cylindrical parts to be transferred are transferred from the movable base to the static base in the horizontal direction through such a series of actions as alternate support, relief and traction of the two support frames on the static base and the two transfer frames on the movable base.

The invention discloses an online cyclic regeneration organic waste gas treatment method and an online cyclic regeneration organic waste gas treatment device. The device comprises a cyclone tower, a liquid storage tank, a settling pond, a biological desorption chamber, and a storage chamber arranged at one side of the biological desorption chamber, wherein the bottom of the cyclone tower is connected with the settling pond by a pipeline; a centrifugal pump is arranged at the bottom of the settling pond, and adsorbent particle pellets with a cellular structure therein are delivered to the biological desorption chamber by the centrifugal pump; a plurality of cyclone atomizing nozzles arranged in circle of contact are distributed at the circumferential wall of the lower side of the cyclone tower at intervals; organic absorbent solution, desorbed adsorbent particle pellets and organic waste gas are ejected into the cyclone tower by the cyclone atomizing nozzles according to a manner of circle of contact so as to be sufficiently mixed and flow and spirally rise along the circumferential direction of the inner wall of the cyclone tower. According to the invention, the device integrates an adsorbing-recycling method, an absorbing method and a biological method into a set of new device, thus overcoming defects of conventional purification, realizing online cyclic regeneration of the adsorbent, improving the purifying efficiency, lowering the operation cost, and solving the problem of low regeneration efficiency of the adsorbent.

The invention discloses a pushing device for the extraction of formation fluid, which comprises a main cylinder, and the bottom of the main cylinder is provided with an axially extended central guide rod, on which a first pushing piston and a second pushing piston are sequentially sleeved; the sidewall of the main cylinder is provided with an extension oil port, a formation fluid oil port and a retraction oil port, the extension oil port is communicated with an extension oil chamber of the main cylinder through an extension oil passage axially arranged in the sidewall of the main cylinder, the formation fluid oil port is communicated with a fluid inlet of the central guide rod via a fluid passage, the fluid passage consists of a first passage a second passage and a third passage, wherein the first passage sequentially runs through and is axially arranged in the sidewall of the main cylinder, the second passage is radially arranged in the bottom of the main cylinder, the third passage is axially arranged in the central guide rod, and the retraction oil port is communicated with a retraction oil chamber of the main cylinder through a retraction oil passage of the sidewall of the main cylinder. The pushing device has the advantages of high integration degree and small occupied space, and the arrangement of the control oil passages and the fluid passage of the pushing device is more reasonable.

The invention relates to a wire-beam concentric electron beam fusing wire additive manufacturing equipment. The equipment comprises a control system, an annular beam spot cold cathode electron gun, awire feeding system, a high-voltage acceleration power supply and a beam flow regulation and control system which are electrically connected with the control system, an airflow control system, a cooling system, a focusing control circuit, a wire end position detection system, a vacuum chamber and a three-dimensional movement mechanism arranged in the vacuum chamber, wherein the control system is constructed on the basis of a PLC (programmable logic controller) and a CNC (computer numerical control); the electronic gun comprises an annular cathode at the upper part, a conical anode at the lowerpart and a wire guide tube axially penetrating through the cathode and the anode, and the cathode is connected with a high-voltage acceleration power supply and a cooling system, the conical outlet end of the lower part of the anode is connected with a vacuum chamber, and the three-dimensional movement mechanism is used for driving the workbench to move in a three-dimensional direction, the control system controls the wire feeding system to penetrate the metal wire material from the cathode inlet end to the anode outlet end through the wire guide pipe, wherein the control system is used for controlling the beam flow regulation and control system, the air flow control system, the focusing control circuit and the wire end position detection system.

The invention relates to the technical field of air conditioning equipment, in particular to a top air outlet device. The top air outlet device comprises a top cover assembly, a top air outlet assembly, a detection mechanism, an adjusting mechanism and a controller; the top air outlet assembly can go up and down relative to the top cover assembly, and the controller is used for controlling lifting motions of the top output assembly and the top cover assembly; the adjusting mechanism and the detection mechanism are separately arranged on the top air outlet assembly and the top cover assembly, and the adjusting mechanism has flexible elasticity; in a process of the lifting motion of the top air outlet assembly relative to the top cover assembly, when the adjusting mechanism touches the detection mechanism, the detection mechanism sends out a detection signal to the controller, so that the controller controls the top air outlet assembly to continuously move in an elastic flexible range of the adjusting mechanism. According to the top air outlet device provided by the invention, the moving stroke of the top air outlet assembly is additionally arranged in the flexible range of the adjusting mechanism, so that the top air outlet assembly and the top cover assembly can get closed completely. The invention further provides an air conditioner and a motion control method of the top air outlet device.

The invention belongs to the technical field of drying equipment, and particularly discloses an automatic drying device. The automatic drying device comprises a rack, a drying unit, a power unit and amaterial storing unit, wherein the material storing unit comprises a material hopper and a discharging pipe; the drying unit comprises a communication column and a rotating disc, a plurality of waterleakage holes are formed in the surface of the rotating disc, an ejection rod with the upper part positioned in the discharging pipe is fixed in the rotating disc, and a stop block is arranged on theejection rod; a material door is hinged to the upper end of the communication column, and an electric heating wire is arranged in the communication column; an annular groove is formed in the surfaceof the communication column, an annular ring is rotationally connected in the annular groove, and a connecting rod is arranged on the annular ring; limiting strips located on the two opposite sides ofthe connecting rod are fixed on the rack, and the power unit comprises a cylindrical cam, a motor for driving the cylindrical cam to rotate and a transmission mechanism used for driving the communication column to rotate; and one side surface of the connecting rod is in contact with the surface of a curve contour of the cylindrical cam. The device can solve the problem that manual feeding and discharging are needed in the process of drying materials.

The invention relates to combined type purification equipment with a monitoring and cleaning system. The combined type purification equipment comprises a gas inlet, a flue gas purification mechanism,a cleaning mechanism and an exhaust port which are communicated with one other. The flue gas purification mechanism comprises a lampblack purification cavity connected with the tail end of the gas inlet. A plurality of rotating shafts are horizontally arranged in the lampblack purification cavity. The rotating shafts are driven by a motor a arranged on the outer wall of the lampblack purificationcavity. Electrostatic polar plates matched with the rotating shafts are fixedly arranged on the rotating shafts. The cleaning mechanism comprises a plurality of cleaning nozzles arranged at the top end of the inner wall of the lampblack purification cavity. The cleaning nozzles are communicated with a cleaning box arranged at the top end surface of the lampblack purification cavity, and the electrostatic polar plates are arranged in parallel. According to the combined type purification device with the monitoring and cleaning system, the rotating electrostatic polar plates are arranged in the lampblack purification cavity, the angle between the electrostatic polar plates and the horizontal plane can be controlled at any time, the moving stroke of the lampblack in the purification equipmentis increased, the time of the lampblack in the purification equipment is prolonged, and the lampblack purification efficiency of the purification equipment is improved.

In a balance training machine (1), a swing mechanism (3) that swings a seat (2) in a front-rear direction (X direction) and a width direction (Y direction) is rotatably supported on a support unit ( 11) on. A first tilting mechanism (12) for raising or lowering the rotation axis (T0) is arranged between the support unit (11) and the support frame (4). A second tilting mechanism (20) capable of compensating the posture of the seat (2) is arranged between the seat (2) and the swing mechanism (3). By driving the swing mechanism (3), the first tilt mechanism (12) and the second tilt mechanism (20) independently of each other, the stroke of the swing motion of the seat can be lengthened or shortened. Or, by driving the swing mechanism (3), the first tilting mechanism (12) and the second tilting mechanism (20) in association with each other, the motion track of the seat (2) can be changed.

The invention belongs to the technical field of accessories of cleaning machines or equipment, and particularly relates to a flange hole vibration cleaning device. The flange hole vibration cleaning device comprises a rack, the rack is in sliding connection with a fixed disc, and a hollow cleaning rod is rotationally connected to the fixed disc. A blowing pipe is arranged in the hollow cleaning rod in a penetrating manner, the blowing pipe is connected with a fan, and an air wheel is rotationally connected in the blowing pipe. One side of the air wheel is coaxially connected with a negative pressure blade, and the other side of the air wheel is connected with a gear set. A negative pressure hole and an air flow one-way valve allowing the negative pressure blade to exhaust are formed in thehollow cleaning rod, and a gas channel communicating with the negative pressure hole is arranged in the cleaning rod. The hollow cleaning rod further comprises symmetrically arranged polishing blocks, and a cam is arranged between the two polishing blocks and driven by the gear set. By means of the scheme, a little scrap iron and dust adhering into a flange hole can be cleaned off, and the flangehole vibration cleaning device is usually used for cleaning machining of the flange hole.

The invention discloses a closed three-dimensional pull rope type wave energy storage device. The closed three-dimensional pull rope type wave energy storage device comprises a closed floater and at least two heavy balls, wherein anchor chains are respectively connected to the lower ends of the heavy balls, wire ropes are respectively connected to the upper ends of the heavy balls, an equipment cavity and an energy storage cavity which are isolated each other in a sealing mode are formed in an inner cavity of the floater from top to bottom, at least two groups of oscillation rocker pumping devices are installed in the equipment cavity in an axisymmetric mode by using the vertical center axis of the equipment cavity as a symmetric axis, rope guide tubes which are uniformly distributed along a circumferential direction and correspond to each group of the oscillation rocker pumping device penetrate through the energy storage cavity, the upper ends of the wire ropes respectively penetrate through the rope guide tubes and are connected with the corresponding oscillation rocker pumping devices, and the oscillation rocker pumping devices are driven to continuously pump compressed air into the energy storage cavity so as to be stored by the tensile strength change of the wire ropes. The invention further discloses a closed three-dimensional pull rope type wave power generation device. The closed three-dimensional pull rope type wave energy storage device and the closed three-dimensional pull rope type wave power generation device have the advantages of simple structure, reliability in transmission, high corrosion resistant capability, simplicity in maintenance, good adaptability and the like, and movable joints are not soaked in seawater.