68results about How to "Solve obstacles" patented technology

The invention provides an impeller type axial and circumferential compound impactor, which includes a conversion joint, a motor assembly and an impact assembly. The front end of the motor assembly is connected to the impact assembly, and the rear end is connected to the conversion joint. The impeller of the motor assembly converts the liquid energy into rotational mechanical energy, thereby driving the rotary valve of the impact assembly to rotate. There are holes, so that the drilling fluid periodically enters the hammer head and the hammer body barrel cavity, and the hammer head periodically hits the hammer body barrel under the push of the liquid to produce circumferential shocks, and at the same time, the axial holes of the rotary valve and the valve cover are periodically dislocated. Change the liquid pressure to generate high-frequency axial vibration, and transmit the axial and circumferential impact force to the drill bit through the lower joint to eliminate the stick-slip phenomenon, protect the drill bit, and improve the rock-breaking efficiency of the drill bit. The impeller-type axial and circumferential composite impactor of the present invention uses drilling fluid to generate two impacts, axial and circumferential, and can effectively improve drilling efficiency.

The invention relates to a Bluetooth 4.0-based inertia motion capturing system used for realizing low-power wireless data transmission, and a data transmission method thereof. A BLE (Bluetooth Low Energy) module is arranged at each joint of a collection object, allowing each joint to employ the Bluetooth technology to communicate with a sink node; all joints are divided into a plurality of sets, and each set is in connection with a sink node; the joint in each set can transmit data with an own sink node; the sink node performs data transmission with a Root node through a serial port, thereby forming a tree-shaped transmission network. The tree-shaped transmission network based on Bluetooth effectively overcomes the deficiency of the WiFi and Zigbee wireless technology in a motion capturing system, emancipates users from data line constraints, improves user experience and reduces the power consumption of a whole system.

The invention discloses a device for enabling a wheelchair to get on or off a vehicle. The device is characterized by mainly comprising a movable platform, a suspension platform, a sliding block guiding branch chain, a first intermediate branch chain, a second intermediate branch chain, a wheelchair positioning fastening device, a sliding block, a machine frame and an electric push rod. The structural layout of the whole device is that the sliding block is connected with the machine frame through the sliding block guiding branch chain, the suspension platform and the sliding block are in symmetric connection through the first intermediate branch chain and the second intermediate branch chain, the movable platform is connected with the suspension platform through a movable platform guiding branch chain, the wheelchair positioning fastening device is installed on the movable platform and used for being connected with an electric wheelchair, and the electric push rod is connected between the suspension platform and the sliding block. The first intermediate branch chain and the second intermediate branch chain are identical in structure and form double parallelogram mechanisms. Under the conditions of guaranteeing that the sliding block is horizontal, movement of the suspension platform is in a translation process and is always kept in a horizontal state, simultaneously two parallelograms are matched to be used, and horizontal movement stability of the movable platform is also guaranteed.

The invention relates to a preparation method of a silk printed fabric. The preparation method comprises the following steps of applying a macromolecular modifier to the surface of paper, and treatingat the temperature of 60 DEG C, so as to obtain the transfer printing paper, wherein the weight increasing amount of the paper is 10 to 20g/m<2>, and the macromolecular modifier is prepared from thefollowing components in percentage by mass: 0.5 to 5% of water-soluble hot melt glue, 2 to 12% of thickener, 0.5 to 3% of acid and alkaline agent, 2 to 8% of moisture absorber, and the balance of water; performing ink jetting and printing onto the transfer printing paper by active dye ink or acid dye ink, and drying, so as to obtain the transfer printing paper jetted with ink; soaking and rollingthe silk fabric, wherein the liquid entrapping rate of the fabric is 80 to 90%; laminating the transfer printing paper jetted with ink and the pretreated silk fabric in a hot press way, steaming by vapor, and washing by water, so as to obtain the silk printed fabric, wherein the permeation hot press temperature is 100 to 160 DEG C, and the hot press pressure is 3 to 6MPa. The preparation method has the advantages that the technology is simple and environmentally friendly; the color depth value of the prepared silk printed fabric is 4 to 7, the permeation rate of dye is 90% to 111%, and the color fixation rate is 79 to 90%.

The invention provides a differential torsion impactor based on a screw and a gear, which solves the sticky-slip and vibration phenomenon produced by a drill bit in the drilling process. The differential torsion impactor based on the screw and the gear is characterized in that the differential torsion impactor consists of a power assembly, an universal shaft assembly, a drive assembly and an impact assembly, wherein the upper portion of the power assembly is connected with a drill stem, the lower portion is successively connected with the universal shaft assembly, the drive assembly and the impact assembly, and the power assembly drives a flange driving shaft to rotate; and on one hand, the flange drive shaft drives an eccentric impact hammer to rotate at a high speed by virtue of a driveshaft and a drive pin, on the other hand, an outer gear is driven to rotate and engage with an inner gear shell, a lower rotation speed is transferred to the inner gear shell to drive the impact driveshaft to rotate at a lower rotation speed, so that the drive shaft forms a rotation speed difference with an eccentric impact block to generate an impact effect, and the torsion vibration generated by the collision is transferred to a lower connector by virtue of the impact drive shaft. The differential torsion impactor can continuously produce torsion impact vibration, so that the rock breakingefficiency of the drill bit can be increased, and the jamming of drill tool and sticky-slip phenomenon can be effectively avoided.

The invention discloses a combination multifunctional body capable of changing power instead-of-walking vehicle. The vehicle overcomes the obstacles existing in the prior instead-of-walking vehicles such as wheel chair vehicles, tricycles and bicycles that the characteristic functions of the shape can not be mutually changed, overcomes the existed obstacle existed when the vehicle runs on the road and the water surface, overcomes the obstacle existing in the tool application between a normal person and an abnormal person, and has the advantages of having reasonable structure, convenient use, and various types and meeting needs of different people in different places by changing the shape. The structure of the vehicle is as follows: the vehicle comprises a guide connecting part connected with a wheel box, the lower part of the wheel box is provided with a cymbal-type combined wheel, the wheel box is also provided with a seat rest part, the outer part of the wheel box is provided with telescopic combination type paddles, the bottom of the wheel box is provided with an inflatable packer, and the front part of the wheel box is also provided with an energy device part and a wheel chair auxiliary wheel respectively.

The invention relates to a short intelligent-control hoist type lifting oil extraction system with an ultra long stroke and a working method. The oil extraction system comprises a motor, a winding drum, a fixed pulley, a derrick, a slide and swing device, a control assembly, an oil extraction rope and a down-hole multi-stage plunger ultra long stroke oil well pump; the control assembly controls the motor to start, rotate forwards and backwards and halt for waiting according to set parameters such as the stroke, down-hole liquid pressure, halt waiting time and the like; the winding drum is driven to rotate forwards and backwards and halt, the oil extraction rope on the winding drum drives multi-stage plungers of the down-hole multi-stage plunger ultra long stroke oil well pump to reciprocate at the set stroke in an ultra long pump cylinder, a whole well operation mode that a plunger of a conventional hoist type bailing oil extraction device lifts a well liquid from the well bottom to the well mouth is changed, a non whole well operation mode is realized, the whole unit structure is compact, the size is small, material consumption is reduced, energy is saved, the cost is reduced remarkably, and one-time investment of an oil well can be reduced by almost 40%. The short intelligent-control hoist type lifting oil extraction system with the ultra long stroke is applicable to a deep well, a stripper well and a heavy oil well, and the oil well yield-increasing effect is improved remarkably.

The invention provides an impeller type differential torque impactor, and solves the phenomenon of sticky slip and vibration produced by a drilling bit in a drilling process. The technical scheme of the impeller type differential torque impactor is that the impeller type differential torque impactor consists of an upper joint, a power assembly, an impact assembly and a lower joint, wherein the upper part of the upper joint is connected with a drilling rod while the lower part of the upper joint is connected with the power assembly; the power assembly produces high-speed rotation motion under an impact effect of drilling fluid so as to drive a flange transmission shaft to be rotated; the flange transmission shaft drives an eccentric impact hammer to be rotated at high speed through a transmission shaft and a transmission pin and also drives an outer gear to be rotated, the outer gear is meshed with an inner gear shell, and lower rotation speed is transmitted to the inner gear shell, sothat an impact transmission shaft is driven to be rotated at lower rotation speed, a rotation speed difference between the impact transmission shaft and an eccentric impact block is formed, and an impact effect is produced to transmit torsional vibration produced by collision to the lower joint through the impact transmission shaft. According to the impeller type differential torque impacter disclosed by the invention, torsional impact and vibration can be continuously produced, so that the rock breaking efficiency of the drilling bit is improved, and the phenomenon of drilling sticking and sticky slip can be effectively avoided.

The invention discloses a method for overcoming diploid potato self-incompatibility. The method comprises the steps of 1, selecting a target fragment; 2, constructing a gene target shooting recombinant vector; 3, achieving function deletion mutation of a S-RNase gene inside a cell; 4, regenerating a plurality of potato plants; 5, specifically amplifying a DNA block containing the target fragment of the S-RNase gene in the regeneration plant; 6, selecting the regeneration plant edited by the S-RNase gene; 7, further screening out a diploid gene editing strain from the gene edited plant; 8, performing expanding propagation and planting on the gene edited strain, and performing self-incompatibility phenotype identification on the blooming stage; 9, amplifying product sequencing on the harvested self-compatible plant later generations, and detecting heredity and separation of the edited target gene for later generations. The method has the advantages that the simple, accurate and efficiency method is found for overcoming diploid potato self-incompatibility.

The invention provides an oil-water distribution tester and an oil-water distribution test method. The tester comprises a sonic system, a main machine consisting of an electronic circuit and a battery, wherein the sonic system, the main machine and the battery are in thread connection with one another and respectively provided with a centering guide so as to guarantee the concentricity of the tester and a shaft. The storage-type amplitude log is carried out by adopting a double-transmission and four-receiving way, the distribution of oil and water in a horizontal section is determined through the micro sound difference, the periodic injection-production effect of a thermal-recovery horizontal well can be analyzed collectively by utilizing the micro sound difference method, the micro-temperature-difference water finding method and a temperature pressure sectional curve of the horizontal section, when the cementing quality is detected, the distribution situation of the oil and water can be judged by detecting the tiny time difference through the difference of the spreading speed of sound wave in different media such as oil, formation water and injected water, the tiny difference of the medium temperature can be detected through a micro-temperature-difference instrument, the location and source of the water can be collectively determined by combining the tiny temperature difference and micro sound difference, so that the reliability of the logging data can be greatly improved, and the measurement precision of the instrument is higher.

The invention discloses a water pipe redirection rod, and relates to the technical field of agricultural tool machining. The water pipe redirection rod comprises at least two round pipes embedded with each other and vertically arranged, wherein every two embedded round pipes are locked through locking screws; an inverted cone part with a big top and a small bottom is arranged at the lower end of the lowest round pipe; and a vertical ring is mounted at the top end of the highest round pipe. The water pipe redirection rod can solve the problem of inconvenience for use due to easy winding or blocking of spraying equipment with a flexible water pipe used in a mountainous region.

The invention relates to an automatic end surface milling device for automobile flexible shaft brackets. The automatic end surface milling device comprises a base, a locating device, a lifting regulation device, a milling position regulation device, a rotary milling device, a pressing device and an abrasion detector. The locating device is placed on the upper end surface of a work table, the lifting regulation device is installed on a cross beam, the milling position regulation device is installed in the middle of the lower end of the lifting regulation device, the rotary milling device is installed in the middle of the milling position regulation device, the pressing device is installed in the middle of the lower end of the rotary milling device, the abrasion detector is installed in the middle of a supporting beam, and the lower left part of the rotary milling device is located in the middle of the abrasion detector. The automatic end surface milling device has the advantages of being reasonable in structural design, low in producing and manufacturing cost, convenient to operate, capable of milling the upper end surfaces of the flexible shaft brackets and greatly improving the milling efficiency of the automobile flexible shaft brackets, capable of compensating for abrasion so as to guarantee the machining precision, capable of being regulated according to the automobile flexible shaft brackets of different dimensions, high in flexibility and wide in application range.

The invention relates to an anti-friction centralizer having anti-balling and boosted propelling functions. The anti-friction centralizer comprises a body and roller assemblies, wherein the body is connected between underhole tools through threads, and the roller assemblies are arranged on prisms which are uniformly distributed outside the body along the circumferential direction; a certain included angle exists between the roller shaft of each roller assembly and the axial direction of the body; the body rotates in the drilling process, and the rollers spirally roll on a well wall to push an underhole tool to move forward and supply drilling pressure to a drill bit; alloy teeth are embedded to the outer surfaces of the rollers and positions, provided with the roller assemblies, of the body, so that the friction mode is changed into rolling friction, friction resistance of the underhole drill with the well wall in the drilling process can be reduced, and failure of roller balling can be prevented. The anti-friction centralizer has a relatively simple structure, low cost, high strength and long service life, and can be used for solving the technical problems of poor resistance reduction effect, complicated structure, low strength and short service life in the prior art.

The invention relates to a friction-type pineapple picking device and belongs to the technical field of agricultural machinery. The problems are solved that in the prior art, the damage rate of pineapple picking is high, and the device cannot adapt to pineapples different in size. The friction-type pineapple picking device comprises a main rack, a driving mechanism arranged on the main rack and afriction picking mechanism arranged at the lower end of the main rack. The friction picking mechanism comprises two symmetrically-arranged picking heads of the same structure and a spring connected between the two picking heads; each picking head comprises a picking head, a drive gear, a driven gear and a friction band, one end of the picking rack is hinged to the main rack through a hinge, the drive gear and the driven gear are arranged on the lower end face of the picking rack and meshed with each other, and the friction band is connected between the drive gear and the driven gear; the two ends of the spring are connected with the opposite side faces of the two picking racks respectively, and when the spring is in a natural state, the two picking racks are relatively close to each other;the driving mechanism drives the two drive gears of the two picking heads to rotate in different directions.

The invention relates to an auxiliary welding device of a crawling welding robot, a control method and a welding method of the auxiliary welding device. The welding device comprises a crank arm type lifting mechanism assembly for controlling an operation room to flexibly move to the surface and the periphery of any operation position of a large component, the crawling welding robot is arranged in the operation room, and whole machine electric control equipment and peripheral equipment are arranged in the operation room; and the crank arm type lifting mechanism assembly comprises a combined general control operation table and a crank arm lifting mechanism which are arranged on a carrying tool. The crank arm lifting mechanism is rigidly connected with the tail end operation room by adopting a three-section hydraulic folding type working arm; the crank arm lifting mechanism comprises a welding operation arm pivoted to the combined general control operation table through a first pivot and a first crank arm pivoted to the end of one end of the welding operation arm through a second pivot; and each crank arm is driven by a cylinder.

The invention relates to a multistage plunger super-long-stroke oil well pump which is composed of a multistage rigid plunger and a super-long pump cylinder. The multistage rigid plunger comprises a sealed cavity part, a weighting part and multiple single-stage rigid plungers which are connected in series. The single-stage rigid plungers are in loose joint so that the multistage rigid plunger can be freely adjusted to adapt to the axial deviation of the super-long pump cylinder and solve the problem that the plunger is stopped. The super-long pump cylinder is formed by linearly connecting multiple finish-rolled and honed pump cylinder bodies through couplings. The middle of each coupling is provided with a spigot. Every two pump cylinder bodies are in threaded connection with the corresponding coupling, the fit clearance is smaller than or equal to 0.01 mm, each spigot is aligned so as to be located, the largest gap between the end faces of every two pump cylinder bodies which are in butt joint ranges from 0.1 mm to 0.2 mm, the straightness of the two butt-joint pump cylinder bodies is smaller than or equal to 0.04 mm each meter, connecting gaps of the super-long pump cylinder are small due to the connection mode between the pump cylinder bodies, and connecting faces are smooth. The multistage plunger super-long-stroke oil well pump has the advantages that the stroke of the oil well pump can be set at will according to the requirement of an oil well, and the range is from tens of meters to hundreds of meters.