829results about How to "No need to disassemble" patented technology

The invention provides a reciprocating type three-cylinder plunger pump for an oil and gas field. The reciprocating type three-cylinder plunger pump comprises a gear box assembly, a power end assemblyand a hydraulic end assembly which are transmitted in sequence; and the hydraulic end assembly comprises a disc root and a plunger, the power end assembly comprises a crankshaft, a connecting rod, asliding rail and a crosshead, power is transmitted from the crosshead to the plunger, a pull rod and a fender are arranged between the plunger and the crosshead, the pull rod is fixed on the cross head, the plunger is fixed to the pull rod, the fender is located between the pull rod and the plunger and fixed with the plunger, and the outer diameter of the fender is larger than that of the plungerand the pull rod. The reciprocating type three-cylinder plunger pump can solve the problems that a working medium in a hydraulic end assembly in the prior art is poured into a power end assembly alongthe plunger, a packing is inconvenient to replace, and a connecting rod large-head bearing bush is insufficient in lubrication and the like.

This invention discloses two kinds of friction wearing testing machine of integration of reciprocating and rotating, which comprises base socket , reciprocating structure, rotating structure and upper-specimen control device, wherein, the reciprocating structure comprises reciprocating motor, slide block, slide rail, crank, connecting bar; and the rotating structure comprises rotating drive motor and rotating disc; and the upper-specimen control device comprises spring arm, guide rail and slide holder or spring arm , rotating parts and base socket. This invention integrates the reciprocating structure friction wearing machine and rotating friction wearing machine into one structure through special designed base socket and upper-specimen control device and it needn't disassembly specimen and ensures the accuracy of the experience data.

The invention discloses a servo double-surface heating vacuum packaging machine and belongs to liquid extraction seal secondary forming and packaging equipment of flexible packaged lithium batteries. The servo double-surface heating vacuum packaging machine comprises a double-station turntable feeding device driven by a cam partitioning device, a packaging mechanism with an up-and-down packaging device, and an electric control system, wherein the up-and-down packaging device comprises an upper cavity main body and a lower cavity main body; the opening directions of the upper cavity main body and the lower cavity main body are opposite to each other; the upper cavity main body and the lower cavity main body can clamp the turntable to form a sealed cavity body; a pressing board, an upper sealing head and a bayonet are arranged in the upper cavity main body; a lower sealing head and an aspirating hole are arranged in the lower cavity main body; the aspirating hole is communicated with an external vacuum source; the upper sealing head corresponds to the lower sealing head; and a heating body is arranged inside the servo double-surface heating vacuum packaging machine. The servo double-surface heating vacuum packaging machine has a compact structure and high efficiency; the electric core packaging quality is stable and the cost is low; vacuum liquid extraction can be realized; and pollution of the electrolyte to the equipment can be reduced to minimum.

A weed trimmer apparatus having a head defining at least one side wall, the side wall forming one or more apertures therethrough, and one or more line retention members for retaining one or more trimmer lines. The line retention members are operatively connected to the head, wherein each line retention member is sized and configured to extend through a loop of at least one trimmer line during operation of the weed trimmer apparatus and wherein each line retention member is dynamically connected to the head to allow for installation and removal of the loop of trimmer line.

The invention discloses a method for estimating the SOH of a power lithium ion battery based on an alternating current impedance test. The method comprises the following steps that the battery is charged at the constant current of 1 C to 0.5 C, the battery is discharged at the constant current of 1 C to 0.5 C, and the quantity of electricity discharged in the discharging process of each ring is recorded; the alternating current impedance test is conducted on the battery when the battery is discharged to the zero charge state and the charge transmission impedance of the battery is obtained from the NOV1.1 in a fitting mode through an alternating current curve of the medium frequency ranging from 0.25 Hz to 1.2 KHz; the discharging quantity of each ring, the charge transmission impedance and the number of rings serve as input parameters of an estimation function, and a capacity fading curve and a charge transmission impedance curve are obtained from the Origin 9 in a fitting mode; the capacity fading curve is corrected according to the charge transmission impedance curve, the estimation function of the battery SOH changing along with the number of the circulation rings is established, and judgment data for the SOH of a battery of the same type are calculated. According to the method, the SOH is estimated through the addition of the charge transmission impedance, an estimation result is more accurate, and the battery does not need to be detached.

The invention discloses an intelligent detection and automatic dust removal system for a computer case. The system includes: a first detection unit for detecting the dust content in the computer case; a control unit for turning on the second The detection unit and the dust removal unit; the second detection unit is used to detect the dust distribution in the computer case; the dust removal unit is used to remove the dust in the computer case based on the dust distribution in the computer case; There are technical problems such as low dust removal efficiency, troublesome disassembly, and easy damage to equipment. The technical effect of reasonable system design, automatic dust removal without disassembly is realized.

The invention discloses a method and a device for measuring the pore volume change of a porous medium. The method comprises the following steps of: A, putting a workpiece to be tested into a holder; B, closing an upstream control valve and a vent valve, and opening a communication valve, a downstream control valve and a pressure regulating control valve; C, after the device is positioned in the vacuum state and stable, closing the downstream control valve; D, performing confining pressure stepwise loading/unloading experiments; and E, opening the vent valve, setting a pressure regulating controller to be zero, and finishing the measurement of the pore volume change. The pressure regulating controller mainly comprises a front fixing sleeve, a rear fixing sleeve, a movable sleeve, a sliding head, a sliding block, a screw rod, a rotary head and a rotary rod, wherein the rear fixing sleeve is provided with a main scale; the movable sleeve is provided with a branch scale; and the main scale and the branch scale are used for reading the volume difference. The device is easy to operate, is convenient to read, is stable in performance and reliable in measurement, and is suitable for quick, continuous, accurate and intuitive measurement of wide-range pore volume change of porous media under the condition of complicated stress variation.

An apparatus and method is provided for removing a retained member from a rotary head assembly configured for attachment to a rotary power source.

The invention discloses a lock bead type vibration isolation bumper without harmonic peaks in three directions. The lock bead type vibration isolation bumper without the harmonic peaks in the three directions comprises an outer shell, a top cap, a spring nut, a vibration isolation spring and a ball locking-up mechanism. The lock bead type vibration isolation bumper without the harmonic peaks in the three directions adopts the ball locking-up mechanism, is matched with a locking force adjusting component, an equilibrium position adjusting component and a buffering component, and achieves the purpose of buffering in the three directions of a vibration isolator, vibration isolation without harmonic peaks in the three directions, adjustment of locking force, and meeting different nominal loads. Due to the fact that rolling friction is adopted to isolate vibration, the damping coefficient of the vibration isolator is reduced, and the abrasion in use is reduced. The vibration isolator of the lock bead type vibration isolation bumper without the harmonic peaks in the three directions is enabled to have the advantages of being long in service life, abrasion-resistant, and stable in performance, have high-efficient and high-frequent vibration isolation capability and the like.

A rotary head assembly apparatus, and a cutting blade for use on trimmer rotary head assemblies are disclosed. The rotary head assembly apparatus is configured to easily replace cutting members necessary to cut unwanted plants. The cutting blade is for use on trimmer rotary head assemblies configured to cut unwanted vegetation.

This invention relates to rotary head assembly apparatuses, and more specifically, to rotary head assembly apparatus configured to easily replace cutting members necessary to cut unwanted plants.

The invention discloses a pair of double-head separate resistance spot welding tongs. A first electrode arm (2) is mounted at the lower end of an electrode rod (1); a second electrode arm (3) is mounted at the lower end of another electrode rod (1); a round-head electrode (4) is fixed on the inner side of the lower end of the first electrode arm (2); two cylinder electrodes (5) are fixed side by side on the inner side of the lower end of the second electrode arm (3); distances from the round-head electrode (4) to the two cylinder electrodes (5) are equal; and a copper cushion block (6) is arranged among the round-head electrode (4) and the two cylinder electrode (5). The pair of welding tongs can be used for welding similar workpieces such as filler caps, is free from interference with the workpieces, can effectively prevent damaging the workpieces in the welding and clinching process, is simple to operate, and can weld two points simultaneously, the welding quality is guaranteed, the turning time of the pair of welding tongs is reduced, and the welding efficiency is improved greatly.

The invention relates to the technical field of water pollution treatment, and discloses a multi-stage treatment and purification device for underground water pollution. The multi-stage treatment andpurification device for underground water pollution comprises a water collection chamber, a first water pump, a stirring chamber, an aeration oxidation tank, a filter screen, a second water pump, a heavy metal reaction tank, an activated carbon filter and a water quality detector. The top of the stirring chamber is fixedly connected with a rotating motor, and the output end of the rotating motor is fixedly connected with a first gear; two symmetrically distributed first rolling bearings are embedded in the top of the stirring chamber; a stirring shaft is fixedly connected to the inside of eachfirst rolling bearing, and a second gear is fixedly connected to the outer wall of the top of each of the two stirring shafts; the two second gears are engaged with the first gear; a plurality of stirring blades which are distributed in a staggered manner are fixedly connected to the outer wall of each of the two stirring shafts; and fixing blocks are fixedly connected to the left side and the right side of the filter screen separately. According to the multi-stage treatment and purification device for underground water pollution, the mixing efficiency of sewage in the stirring chamber can beeffectively improved, and the filter screen can be conveniently disassembled and assembled.

The invention provides a washing machine, which comprises a cabinet, an inner bucket, an outer bucket, an image acquisition device and a data transmission unit, wherein the image acquisition device is arranged between the inner bucket and the outer bucket, and is used for acquiring the image information of the outer wall of the inner bucket; the data transmission unit is used for transmitting the image information to an external image processing device so as to enable the external image processing device to generate and display a corresponding image of the outer wall of the inner bucket according to the image information. According to the washing machine provided by the invention, a user can conveniently know the dirt condition of the inner bucket wall at any time without disassembling and assembling the washing machine, and greater convenience is realized; the invention also provides the image processing device, a system of the washing machine and a detection method for the dirt on the inner bucket wall of the washing machine.

The invention relates to a pressure online detection auxiliary device and a detection method thereof, which can solve the problems that pressure instruments and meters on large-scale equipment can not be detached and the detection can not be performed at present. The device comprises a pipeline detection cavity, wherein the outside of the pipeline detection cavity is of the shape of a hexagonal prism, the inside of the pipeline detection cavity is of a hollow cylindrical cavity, a control knob I and a control knob II are respectively mounted on the two bottom surfaces of the external hexagonal prism of the pipeline detection cavity, and a calibration port, a pressure gauge direction interface and a pipeline direction interface are respectively arranged on the three adjacent side surfaces of the external hexagonal prism of the pipeline detection cavity; and when detection is performed, the pressure output end of a pressure checker is connected with the calibration port, the control knobs I and II are adjusted to communicate the calibration port with the pressure gauge direction interface, the direction of the pipeline direction interface is cut off, and a hand pump of the pressure checker is utilized for pressurizing a checked pressure gauge so as to realize full-range verification of the pressure gauge. The device has the advantages of compact structure, convenience in use, simplicity in maintenance, capability of performing online verification without detaching the instrument and great popularization value.

The invention discloses a low temperature continuous denitrification process for coke oven smoke and reactor thereof. The reactor is divided into 2-9 individual regions, in between the regions are installed with heat insulation facilities, inside each of the regions are arranged with denitrification catalyst, a rectification grille, a soot blower, a pressure difference transmitter, an air inflow pipe for coke oven smoke, and more. When ammonium bisulfate, ammonium sulfate and other sticky substances generated by the reaction of SO2 and NH3 in the oven smoke, consolidate by large amount on the catalyst surface, causing the drop of catalyst activity in certain region of the reactor, the air intake valve is closed for smoke in the associated region, and hot air supply is plugged into the associated region, speeding up the decomposition by heat of ammonium bisulfate, ammonium sulfate and other substances, the denitrification catalyst is regenerated, with no effect on the running of denitrification devices in the remaining regions. The present invention is simple to operate, safe and reliable, with less area occupied, and low operating cost.

The invention relates to a valve retainer abrasion loss measuring device and method. A cylinder head assembly composed of a valve, a cylinder head and a valve retainer is erected on a cylinder head support, and a laser displacement sensor rightly aligns to the valve. The method includes: equalizing volume of the valve retainer abrasion loss to volume of a boss ring; calculating the height of a trapezoid by measuring recess displacement in the direction of a valve rod when the valve is completely closed before and after abrasion and calculating an included angle between the tangent direction of a contact zone of the valve retainer and the valve and the direction of the valve rod; obtaining an upper bottom and a lower bottom of the trapezoid by measuring contact ring width variations before and after abrasion of the valve retainer; taking the average value from the contact zone before and after abrasion of the valve retainer to the center of the valve retainer as the average radius of the boss ring; calculating the volume of the abraded part of the valve retainer according to the above measured data and calculating abrasion mass of the valve retainer according to material density of the valve retainer. The valve retainer abrasion loss measuring device and method are convenient to measure and with no need of demounting the valve retainer.