115 results about "Cylindrical power" patented technology

A method for calculating the required cylindrical power of a toric implant by using both the measured pre-operative corneal / ocular astigmatism and the predicted surgically-induced astigmatism. The post-operative corneal / ocular astigmatism is predicted using power vector analysis of the surgical technique employed by the surgeon. Such a method provides a more accurate method of calculating the required spherocylindrical refractive power of the implant. The method can be implemented manually, but preferably is automated by implementation on a computer through appropriate software.

Optical devices, systems, and methods can produce and / or measure cylindrical (as well as spherical) lens shapes throughout a range of both powers and cylindrical axes. Fluid focus lenses employ electrical potentials to vary the shape of a fluid / fluid interface between two immiscible fluids having differing indices of refractions by controlling localized angles between the interface and a surrounding container wall. Spherical power, cylindrical power, and cylindrical access alignment may be varied with no moving parts (other than the fluids).

The invention relates to a non-contact method and a system for measuring cylindricity based on a multi-aperture splicing technique. The system mainly comprises a digital grating projection system, an image acquisition system, a multi-view overlap-scanning mechanism and control system, and a computer software processing system. The measurement method comprises the following steps: depth and transverse calibration is firstly performed to the system; then fringe images of a measured cylinder at various visual angles are acquired through the multi-view overlap-scanning mechanism, so as to obtain three-dimensional data at various visual angles after image processing; and complete cylindrical surface shape splicing is performed to the three-dimensional data at various visual angles by use of the multi-aperture splicing technique, so as to realize accurate cylindricity evaluation according to GPS (geometrical product specifications). The system can realize non-contact cylindricity measurement and evaluation based on the multi-aperture splicing technique, and effectively solves the problems that the prior cylindricity measurement is insufficient in sampling point, not unified in evaluation results and the like. The measurement system can achieve higher measurement precision and has better repeatability.

A novel method for manufacturing a contact lens in which wearing comfort and stability in the circumferential direction that are aimed at can be achieved consistently with a high degree of accuracy irrespective of a profile of an optical zone. An optical zone provided in a center of a lens has a concave rear surface optical zone substantially matching a surface profile of a cornea and has a convex front surface optical zone imparting required spherical diopter power and geometrical center thickness, and a face of either the rear surface optical zone or the front surface optical zone is designed to impart thereto cylindrical power and axial angle required for a toric surface. Furthermore, a junction thickness is established in a joint zone that connects the optical zone with a peripheral zone at multiple sites in a circumferential direction about a geometrical lens center axis of the optical zone. Position of the joint zone is determined on the circumference from profiles established on the rear surface optical zone and the front surface optical zone so as to connect points satisfying the junction thickness thusly established.

To provide a spectacle lens that is designed optically to suit a spectacle frame with a large camber angle such as a wraparound type spectacle frame. A spectacle lens that is mounted in a spectacle frame with a camber angle of 200° or more, in which cylindrical power for offsetting astigmatic aberration, which is caused by the camber angle at a design reference point, is added to a refractive surface on an object side or a refractive surface on an eye side, prismatic power for offsetting prismatic effect, which is caused by the camber angle at the design reference point, is added to the refractive surface on the object side or the refractive surface on the eye side, and aspherical surfaces different from each other on a nose side and an ear side are formed on the refractive surface on the object side or the refractive surface on the eye side.

Methods and devices are provided to obtain refractive correction with superior visual acuity (e.g., 20 / 10) by achieving an astigmatism-free customized refractive correction. The astigmatism-free customized refractive correction involves obtaining an objective and precise measurement of cylindrical power in a resolution between 0.01 D and 0.10 D in an eye using an objective aberrometer, reliably relating the cylindrical axis obtained from the objective aberrometer to that in a phoroptor, determining an optimized focus error of an eye through subjective refraction with a phoroptor, generating a customized refraction by combining the objective measured cylindrical power, the objective measured cylindrical axis, and the subjectively measured focus power, fabricating a custom lens with a tolerance finer than 0.09 D based on the generated customized refraction, and delivering an ophthalmic lens that can provide an astigmatism-free refractive correction for an eye.

A set of toric contact lenses, each lens in the set including a posterior surface, an anterior surface, a peripheral zone and a center thickness for each lens. At least one of said surfaces includes a toric optical zone, and each lens in the set having different cylindrical correction. The center thicknesses of the lenses decreasing monotonically with increased cylindrical power.

The invention discloses a cooling device and method for a cylindrical power battery pack. The cooling device comprises a battery pack and a cooling structure thereof. The cooling structure includes a cooling channel which is distributed at two side faces of the battery pack and the inside of which is provided with a cyclically flowing cooling working medium, and heat pipes for transferring the heat generated by the battery pack to the channel body of the cooling channel; the heat generated by the battery pack is indirectly transferred to the channel body of the cooling channel through the heat pipes, and the heat generated by the battery pack is taken away by the cyclically flowing cooling working medium in the cooling channel. For the device, the heat pipes are adopted for heat-dissipation of the battery pack, the entire device is compact, small in floor space, flexible in layout, and easy for the connection between single cells. The cooling device has the advantages of simple structure, environment protecting and energy saving, easiness in installation and convenience in maintenance, so the problem of dissipation of the cylindrical power battery pack under different working conditions is solved to reduce the maximum temperature and the overall temperature difference of the battery pack, which has a good application prospect.

The invention provides positive and negative electrode plates and a positive and negative electrode plate covering structure during winding for improving safety of a power battery. Through a width design of positive and negative electrode plate covering gummed paper, blank foil exposure parts of the positive and negative electrode plates are ensured to fall into a covering gummed paper region for polarity pairing; and through a dislocated coating mode of the head of the positive electrode plate and a length design of a copper foil at the head of the negative electrode plate, roll core inner ring negative tabs are preferentially enabled to fall into a dislocated coating region of the positive electrode plate. According to the positive and negative electrode plates and the positive and negative electrode plate covering structure during the winding, under the condition that inner space design capacity of a cylinder is brought into full play, the short-circuit probability of the foil exposure parts of the positive and negative electrode plates and the safety risk caused by relatively large curvature of the inner ring negative tabs in dual-tab design of a negative electrode are lowered, high-safety design requirements of a cylindrical power battery are met, and a great practical significance is achieved.

The invention discloses a cylindrical power lithium-ion battery which comprises a cylindrical housing and a cylindrical cell, wherein the cylindrical housing is provided with a positive pole and a negative pole; the cylindrical cell is formed by coiling a positive plate, a separating film and a negative plate into a cylinder shape; a current collector of the positive electrode extends from one axial end of the coiled cylindrical cell and is divided and welded to form a current collector connecting end of the positive electrode, and a current collector of the negative electrode extends from the other axial end of the coiled cylindrical cell and is divided and welded to form a current collector connecting end of the negative electrode; the current collector connecting end of the positive electrode is connected with the positive pole, and while the current collector connecting end of the negative electrode is connected with the negative pole; and the high-rate charging and discharging performance and the cycling performance of the cylindrical power lithium-ion battery can be improved by improving the structure of the cylindrical cell. The invention also discloses a preparation method of the cylindrical power lithium-ion battery. With adoption of the preparation method, the production technology is simplified, the technology is easy for efficient industrial production, and the prepared cylindrical power lithium-ion battery has relatively excellent performance.

The invention relates to a cylindrical grinding machine, particularly to a conical rod piece drive positioning tooling, that is, the conical rod piece drive positioning tooling (driving rod) of the cylindrical grinding machine. The conical rod piece drive positioning tooling is in a rod-shaped structure, and a rod body in a cone frustum shape is arranged at one end. The conical rod piece drive positioning tooling is used for driving workpieces of the cylindrical grinding machine to rotate, and the accuracy of the cylindricity of grinded spindly shafts can be improved.

The invention discloses a cylindricity detection device of a connecting rod hole. The device comprises a nut, an air guide tube, a barometer, a working table, a handle, a screw, a supporting block and a detection head, wherein the supporting block is fixedly arranged in a circular hole in the working table and is provided with a threaded hole; the screw, of which the end part is provided with the handle, is screwed into the threaded hole of the supporting block; the end part of the screw is in threaded connection with the detection head; the nut, of which the end part is connected with the air guide tube, is in threaded connection with the detection head; the barometer is arranged between the air guide tube and a constant pressure air station; the detection head is provided with an axial blind hole and a radial blind hole; the two blind holes are communicated in the detection head; the central line of the radial blind hole is perpendicular to the central axis of the detection head; the axial air hole of the detection head is communicated with the air tube; the cylindricity of different apertures can be detected by replacing the detection head; by using the screw feed, sample points can be spirally collected, and the operation is easy.

The invention discloses a precision machining method for blind holes of an oil cylinder piston. The precision machining method for the blind holes of the oil cylinder piston comprises the following steps: (1) conducting rough machining on a big piston blind hole till specification of the blind hole reaches 67mm in diameter Phi and 195mm in depth; (2) conducting predrillng on a small piston blind hole first till the following formula is completed, and the formula can be found in the specification; and then conducting semifinishing on the big piston blind hole till the following formula is completed, and the formula can be found in the specification; (3) conducting semifinishing on the big piston blind hole first till the following formula is completed, and the formula can be found in the specification, wherein the depth of the hole is 320mm, cylindricity is smaller than or equal to 0.05mm, and the surface roughness Ra is 3.2 Mu m; conducting machining on the orifice of a counter bore and the big piston blind hole Phi 71 till the runout is smaller than or equal to 0.04mm, and the surface roughness Ra is 3.2 Mu m; and then conducting semifinishing on the small piston blind hole till the following formula is completed, and the formula can be found in the specification, wherein the depth of the hole is 359mm, and concentricity with the big piston blind hole Phi 71 is smaller than orequal to 0.05mm; (4) conducting finish machining on the big piston blind hole first till the following formula is completed, and the formula can be found in the specification, wherein the depth of the hole is 320mm, the requirement of cylindricity is smaller than or equal to 0.03mm; conducting finish machining on the orifice of a counter bore Phi 235 and the big piston blind hole Phi 71 till therunout is smaller than or equal to 0.04mm, and the surface roughness Ra is 3.2 Mu m; and conducting finish machining on the small piston blind hole till the following formula is completed, and the formula can be found in the specification, wherein the depth of the hole is 359mm, concentricity of the small piston blind hole Phi 25 and the big piston blind hole Phi 71 is smaller than or equal to 0.02mm, and the surface roughness Ra is 1.6 Mu m; and (5) conducting honing on the big piston blind hole till the requirement of design size of the big piston blind hole of the oil cylinder is satisfied.

The invention discloses a combined pest capture machine. The combined pest capture machine comprises a power supply system, an automatic control system and a pest catching and killing system. The pestcatching and killing system comprises a primary catching and killing mechanism and a secondary catching and killing mechanism, wherein the primary catching and killing mechanism comprises a cylindrical power grid fence, and a light trapping device, a color plate trapping device and an attractant trapping device are arranged in the cylindrical power grid fence; the secondary catching and killing mechanism comprises a cylindrical shell and a negative pressure blower which is installed in the cylindrical shell, the bottom of the cylindrical power grid fence is connected with the top of the cylindrical shell, and a pest collection device is arranged on the bottom of the cylindrical shell. According to the combined pest capture machine, pests are lured by using a color plate in the daytime, pests are trapped and collected by opening the light trapping device in the night, the pests are first killed through the cylindrical power grid fence, secondary catching and killing is conducted by using the negative pressure blower, and the pests obtained after double catching and killing fall into a water storage plate and are thoroughly killed. According to the combined pest capture machine, three catching and killing schemes are utilized, the pests are sufficiently killed, and the pest escape rate is low.

The invention provides a cylindricity detection device for a helical twisted tape joint. The cylindricity detection device comprises a base, wherein a workpiece bracket is fixed on the base, a V-shaped groove is formed in the upper surface of the workpiece bracket in the length direction, a to-be-detected workpiece is placed in the V-shaped groove, and the workpiece is clamped and placed on the workpiece bracket under gravity for detection. A header of a dial indicator is contacted with the workpiece through adjustment of the height of a horizontal support rod, the workpiece is rotated slowly to enable the workpiece to rotate in the V-shaped groove, and the cylindricity of the workpiece in one perimeter can be judged through reading on the dial indicator. Then a support plate is moved, so that the support plate can move in a chute and get close to or far from the workpiece, the contact position of the workpiece and the header is changed, then the workpiece is rotated, and the cylindricity in next perimeter is detected. The cylindricity of the helical twisted tape joint is detected by adopting a simple structure, the detection data are accurate, and a product meets processing and using requirements.

The invention discloses a cylindrical power battery module, and relates to the technical field of power battery heat management. The cylindrical power battery module comprises a ventilating device, breathing pipes, a battery pack top fixing disc, a battery module and a battery bottom fixing disc; the bottom surface of the battery module is fixed to the battery bottom fixing disc; the end of the battery module is fixed to the battery pack top fixing disc; the battery module consists of cylindrical batteries which are arranged neatly in lines and rows; the breathing pipes are mounted at gaps among the cylindrical batteries; through holes are formed in pipe bodies of the breathing pipes; one end of each breathing pipe is closed, and the other end of each breathing pipe is connected with the ventilating device in a closed manner; the ventilating device is mounted at the top of the battery pack top fixing disc; and a temperature sensor is arranged in the battery pack. The cylindrical powerbattery module is applicable to the technical field of power battery heat management, and can effectively reduce the temperature rise of the batteries of the battery pack, and improve the temperaturedifference consistency of various batteries of the power battery module.

A plurality of cylindrical power storage bodies are immersed in a cooling liquid filled in a power supply device. The power supply device includes: rotary members that are disposed to surround the respective cylindrical power storage bodies, and that rotate to agitate the cooling liquid around the cylindrical power storage bodies; and drive means for rotating the rotary members.

The invention provides a liquid injection explosion-proof pole structure of a cylindrical power battery. The liquid injection explosion-proof pole structure comprises a pole, a pole nut and a safety valve plate, wherein the pole comprises a connection plate and a pole body, the connection plate is provided with the pole body, the pole body is provided with a pole thread, the pole thread on the pole body is matched with the pole nut, a battery cover plate is arranged between the connection plate and the pole nut, the pole nut is cooperated with the pole thread to fix the pole and the battery cover plate under the effect of given pre-tightening force, a liquid injection through hole and a welding step are formed in the pole body, the welding step is arranged on the upper end of the injection liquid through hole, the welding step is connected with the safety valve plate into a whole in a welding manner, the connection plate is connected with a tab inside a battery, and the pole nut is connected with an external conducting wire. The liquid injection hole is integrated with an explosion-proof valve, so that a liquid injection function and an explosion-proof function can be realized by virtue of the form of the pole, the battery structure is simplified, the difficulty that the pole space of the power battery is small can be solved, the over-current capacity of the battery is improved, and the liquid injection efficiency is also improved.

The invention relates to a brake clutch plate detection device and especially relates to a cylindricity detection device for brake clutch plate production. The technical problem to be solved by the invention is to provide a brake clutch plate production cylindricity detection device, which can reduce errors, improve detection effect and can save time and labor. In order to solve the technical problem, the invention provides the cylindricity detection device for brake clutch plate production. The cylindricity detection device comprises a desktop, a hollow table, an up-down moving mechanism, a support board and a first motor and the like. The top portion of the desktop is provided with an opening in the center; the bottom portion of the desktop is connected with the hollow table through a bolt; the hollow table is internally provided with the up-down moving mechanism; and a mobile component of the up-down moving mechanism is connected with the support board. The device realizes cylindricity detection of a brake clutch plate through a detection device and enables the brake clutch plate to be always in a horizontal state through a first fixation device and a second fixation device, so that errors can be reduced.

The invention provides a cylindrical power battery cover plate loading buffer device comprising a worktable, a conveying mechanism, a buffering mechanism, a loading mechanism and an unloading mechanism. The conveying mechanism is used for conveying cover plates, and a plurality of clamping plates used for clamping the cover plates are arranged on a conveyor belt side by side; the buffering mechanism comprises two buffering components located on the two sides of the conveyor belt, each buffering component comprises a buffer frame and two cylinders, the buffer frames are arranged in the conveying direction of the conveyor belt and are located above the conveyor belt, the two ends of each buffer frame are provided brackets movably mounted on the worktable, and two corresponding cylinders arerespectively connected with the two corresponding brackets and drive the two brackets to move to be away from or close to the conveyor belt; the loading mechanism is used for feeding the cover platesto the buffer frames of the buffering mechanisms; and the unloading mechanism is arranged at the discharge end of the conveying mechanism and used for discharging the cover plates on the clamping plates. By means of the cylindrical power battery cover plate loading buffer device, the one-time loading number is large, the buffer number is large, the transfer number is large, detection of buffer materials is achieved, and the cylindrical battery cover plate transfer efficiency can be effectively improved.

The invention discloses a cylindrical power battery module integrating heat radiating and heating, which comprises a battery cell lower support, a battery cell support cover, a plurality of cylindrical power battery cells and a heating device, wherein the battery cell lower support and the battery cell support cover are in snap-joint connection to form a box body; an inner part of the box body is an installation space of the cylindrical power battery cells. The cylindrical power battery module integrating heat radiating and heating is characterized in that a heat conduction pipe is arranged between each two adjacent rows or each two adjacent columns of cylindrical power battery cells; heat conduction silica gel is charged in a combination body formed by the battery cell lower support, each cylindrical power battery cell and the corresponding heat conduction pipe; a battery cell group tightly fits to each heat conduction pipe through the corresponding heat conduction silica gel; each heat conduction pipe is of an integral structure; heat radiating flakes are respectively connected to two ends of each heat conduction pipe; the heat conduction pipes and the heat radiating flakes form battery pack external and internal heat radiating structures; heating devices are arranged on the upper surface and the lower surface of the box body. The cylindrical power battery module integrating heat radiating and heating provided by the invention achieves a favorable heat radiating and heating effect.

The invention discloses a novel phase-change cooling and heating integrated structure for power batteries. The novel phase-change cooling and heating integrated structure comprises power battery module fixtures, a temperature sensor and a control unit. Blowup aluminum uniform heating plates are closely arranged in gaps in two sides of each cylindrical power battery, the cylindrical power batteriesare longitudinally arrayed, the shapes of the blowup aluminum uniform heating plates are matched with the outer contours of cylindrical cells, the blowup aluminum uniform heating plates are in clinging contact with curved surfaces of the various cylindrical power batteries, blowup aluminum uniform heating slabs and heat exchange copper flat pipes are sequentially arranged at the tops and the bottoms of power battery modules in an overlaid manner, the corresponding blowup aluminum uniform heating slabs and the corresponding heat exchange copper flat pipes are in heat transfer contact with heatconduction planes at two ends of each blowup aluminum uniform heating plate, and heating films wrap the heat exchange copper flat pipes positioned at the bottoms of the power battery modules. The novel phase-change cooling and heating integrated structure has the advantages that heat can be efficiently dissipated for power battery packs under diversified charge and discharge working conditions, or the power battery packs can be efficiently heated under the various charge and discharge working conditions, the temperatures of the cells can be controlled, temperature difference between the different cells can be effectively reduced, accordingly, the integral power battery packs can work in reasonable temperature ranges, and heat of the cylindrical power battery modules which are densely arranged can be effectively managed.

The invention discloses a cylindrical power battery module. The cylindrical power battery module comprises a plurality of battery modules, a plurality of electric connecting sheets positioned among adjacent battery modules and used for connecting the multiple battery modules, a module frame used for accommodating and fixing the multiple battery modules, and a battery upper cover used for coveringand protecting the multiple battery modules, wherein the module frame comprises two end plates and four fixed steel angles; the fixed steel angles and the end plates are connected in a riveting manner; and the battery upper cover comprises a positive polar column upper cover, a negative polar column upper cover and a middle upper cover. The cylindrical power battery module provided by the invention adopts the multiple battery modules which can be freely assembled, so that a high-voltage and high-capacity battery system can be formed through series-parallel connection according to needs; the cylindrical power battery module is simple in structure, convenient to assemble and high in universality and interchangeability; and by virtue of the riveting mode, the overall impact resistance and vibration resistance of the module can be improved.

The invention provides a novel high-capacity power nickel-metal hydride battery and belongs to the technical field of new energy source batteries. The nickel-metal hydride battery comprises a battery group, a fixing plate, a battery negative electrode bus bar, a battery positive electrode bus bar and supporting columns; the battery group is formed by combining a plurality of cylindrical power nickel-metal hydride batteries in parallel; the two ends of the cylindrical power nickel-metal hydride batteries are inserted into the fixing plate; negative electrodes of all the cylindrical power nickel-metal hydride batteries are welded on the battery negative electrode bus bar; positive electrodes of all the cylindrical power nickel-metal hydride batteries are welded on the battery positive electrode bus bar; the two ends of the supporting columns are fixed on the fixing plate respectively; and the quantity N of the supporting columns is more or equal to 2. The novel high-capacity power nickel-metal hydride battery provided by the invention has the properties of simple and reasonable structure, high automation degree of production and the like.

The invention belongs to a high-magnification cylindrical power lithium ion battery. The high-magnification cylindrical power lithium ion battery comprises a nickel plating steel shell, an electrolyte arranged inside the nickel plating steel shell and a lithium ion battery cell arranged inside the nickel plating steel shell, wherein the lithium ion battery cell comprises a positive plate, a first membrane, a negative plate and a second membrane which are overlapped and wound in sequence; the positive plate comprises an aluminum foil, a positive lead-out end and positive active substance layers arranged on the inner ring surface and the outer ring surface of the aluminum foil, an aluminum positive lug is mounted on the positive lead-out end, the widths of the positive active substance layers are the same as the width of the aluminum foil, and the lengths of the positive active substance layers are 30-80 mm; the negative plate comprises a copper foil, a negative lead-out end and negative active substance layers arranged on the inner ring surface and the outer ring surface of the copper foil, a nickel negative lug is mounted on the negative lead-out end, the widths of the negative active substance layers are the same as the width of the copper foil, and the lengths of the negative active substance layers are 33-83 mm. The high-magnification cylindrical power lithium ion battery has the advantages of simple assembling and high rate of finished products, and the heat dissipation, high-magnification performance and cycle performance of the battery can be improved.

The invention discloses a combination tool and combination method for packing cylindrical power lithium ion batteries. The combination tool comprises a protective support, wherein the protective support is arranged among a plurality of single battery pole posts arranged together and is integratedly provided with a square plane on the upper surface, a plurality of temperature sensor fixing holes are further designed on the plane, four struts are uniformly arranged at the periphery of the protective support, a rectangular fixing clamping groove is arranged at the right middle of the square plane of the protective support, clamping seats are arranged at two arbitrary symmetric sides, buckles are arranged at the other two remaining symmetric sides, the numbers of the clamping seats at the two arbitrary symmetric sides are same, and the numbers of the buckles at the other two symmetric sides are same. The combination method for packing the cylindrical power lithium ion batteries has the advantages of simplicity in structure, stability, durability, high production capability and easy processing of raw materials, and the defects of easiness in battery pack connection loosening, unstable structure, easiness in disconnection, high fabrication cost and low production efficiency are effectively overcome.