537results about How to "No wear and tear" patented technology

The invention discloses a filter material for cigarette filter and the preparation method. Based on the expanded cabo particles from <The Preparation Method of an Expanded Cabo Particles and Relevant Equipment> (Application No.: 200710065892.3), the expanded cabo particles are extracted, shaped and selected as so to become the required filter material. The filter material utilizes the waste in the cigarette production, which not only has significant economic benefits, but also is not necessary to be recycled, and will not cause the abrasion of equipment and affect the sensory quality of cigarette. The filter material is uniformly arranged on the filter tows so as to make a composite filter; as the composite is applicable to the cigarette, the smell of the cigarette will be more clear and soft, and the tar and nicotine content in the smoke gas can be reduced effectively. The invention has the advantages that: the operation is simple; the effect is remarkable, therefore the invention has a good applicable prospect.

The present invention discloses a method for online detecting railway car wheel set tread defect and its on-line detecting equipment. It is characterized by that the light sent out by light source of structure light can be irradiated on the wheel set tread, on the tread a projection image is formed. When the wheel set is run to the set position, the third position sensor can give out a triggering signal to start image sensor to shoot a series of tread projection images. By utilizing analysis and calculation a deviation image of actual shot image and defectless image can be obtained, it can further judge that in the deviation image the defect is existed or not, and can calculate tread defect parameter.

The invention discloses a method and a device for preparing graphene precursor two-dimension nanoscale graphite powder by adopting an airflow crushing and peeling method. The device comprises an air source system, a crushing and peeling system and a gas-solid separation system; in the crushing and peeling system, an A return pipe, a B return pipe and a riser pipe form a material circulation loop of an airflow crushing and peeling process; an A gas guide pipe, a B gas guide pipe and a C gas guide pipe form an airflow crushing passage of the airflow crushing and peeling process. The graphene precursor two-dimension nanoscale graphite powder is prepared by adopting three supersonic speed jet flows to carry graphite particles together; through collision and friction of strip jet flows, high-purity crushing and peeling of the graphite particles are realized; through circulated and continuous crushing and peeling of the graphite particles, the two-dimension nanoscale graphite powder is obtained. The process is adopted for crushing and peeling the graphite powder, the crushing and peeling of the graphite powder are realized by utilizing mutual collision and friction among the graphite powder, friction of other media does not exist, and thus the two-dimension nanoscale graphite powder with high purity can be obtained.

An apparatus for preparing high-purity nanoparticles by airflow pulverizing method is composed of an air source system, a pulverizing system consisting of left and right reflux pipes and flow-up pipe to form a circulating loop of material, and air-solid separating system. Its process features that the raw material is carried by two supersonic jets for mutual and cyclic collision to obtain nanoparticles.

The invention discloses a hard rock tunnel construction method based on water power cutting. The hard rock tunnel construction method based on the water power cutting is characterized by constructing multiple tunnel sections from back to front along the longitudinal extending direction of a tunnel. When any one tunnel section is constructed, the process is as follows: 1, surrounding rock classification advanced detection; 2, construction parameter confirmation, wherein the confirmed construction parameters comprise cutting parameters of a water power cutting machine and split force of a hydraulic splitter; 3, current constructed tunnel section construction: constructing multiple cutting sections of the current constructed tunnel sections from back to front along the longitudinal extending direction of the tunnel, wherein when any one cutting section is constructed, the process is as follows: construction preparation, water power cutting, hydraulic splitting and rectangular cutting block outward transporting; 4, repeating steps one, two and three for many times until the construction process of the constructed hard rock tunnel is finished. The method provided by the invention is simple in steps, convenient to implement, lower in input cost, high in construction efficiency, good in construction effect, and can simply, conveniently and quickly finish the construction process of the hard rock tunnel.

The invention discloses the new function of the expanded tobacco stalk grain during preparing cigarettes, namely adding the expanded tobacco stalk grains into a filter core or shaped cigarette filter papers constituting the cigarette filter and then making the compound cigarette filter. The expanded tobacco stalk grain is made by using the wasted material during preparing the cigarettes, thus has low cost, but good toughness, which, therefore, is favorable for shaping the filter stick and producing cigarettes and will not abrading the equipment. The cigarette filter prepared has better filtering efficiency and adsorbing capacity, which, once applied in cigarettes, can effectively removing the injurious ingredients as tar and nicotine; the tobacco bois generated during burning will not impact the cigarette's sensing quality and also the recovery of the deposed cigarettes during preparing cigarettes.

The invention discloses a filter tip stick for a low-tar cigarette. A preparation method comprises the following steps of: (1) grinding expansive tobacco stem granules and sieving, and selecting expansive tobacco stem granules with particle sizes of between 20 and 80 meshes; (2) loading one or more than one humectant of oligomaltitol, D-pyranylgalacturonic acid, L-pyrrolidone carboxylic acid-Na, propylene glycol, glycerol, xylitol, sorbierite, Amimethylglycine, 1,3-butanediol, D-pyrane and honey on the expansive tobacco stem granules, and regulating the moisture content to be between 6 and 12 percent, wherein the humectant accounts for 0.5 to 2 percent of the weight of the expansive tobacco stem granules; (3) loading a top dressing flavor which is the same as a top dressing flavor used for preparing cut tobacco of a cigarette on the expansive tobacco stem granules; (4) spreading the expansive tobacco stem granules on nonwoven filter cloth or a paper filter element according to the adding amount of between 0.8 and 3,5mg / mm, and coiling to form a material stick; (5) coiling a white stick by using diacetate cellulose tows; and (6) alternately compounding the material stick and the white stick, wherein the white stick is close to a lip end, and the material stick is close to a cut tobacco end of the cigarette. The filter tip stick for the low-tar cigarette has the effects of reducing harm and tar and improving smoking quality of cigarettes.

The invention belongs to the technical field of fire power plant smoke processing, and in particular relates to a smoke desulfuration and denitration system absorbed by dielectric barrier discharge combined lye and a process thereof. The smoke after boiler combustion enters a dielectric barrier discharge reactor; the SO2 and NOx in the smoke is catalyzed and oxidized by strong oxidant free radical produced from discharging so as to produce high valence nitric oxide, SO3 and some H2SO4 and HNO3, and the like; and the processed smoke enters a lye absorption tower for rinsing the smoke through the lye so as to achieve the purpose of removing nitric oxide and sulfur oxide. The process has better removing efficiency and has higher economical benefit compared with the desulfuration and denitration process applied in the current electric power plant; and the nitrate, nitrite and sulfate are recovered as products so as to achieve the green recovery and utilization of pollutant.

A driving mechanism of a smoke barrier of a smoke exhaust ventilator comprises a driving device and a hinged shaft. The driving device is fixed to the inner side of a panel of the smoke exhaust ventilator and provided with an output shaft. The hinged shaft is located at one end of the inner side of the smoke barrier. A first transmission assembly and a second transmission assembly are arranged on the inner side of the panel of the smoke exhaust ventilator. The first transmission assembly is connected with the output shaft and the hinged shaft. The second transmission assembly is connected with the first transmission assembly and the smoke barrier. The second transmission assembly is hinged to the first transmission assembly through an auxiliary hinged shaft. The output shaft drives the hinged shaft to move through the first transmission assembly and drives the smoke barrier to rotate around the smoke barrier through the second transmission assembly at the same time, and therefore the smoke barrier opens or closes an air inlet in the panel. By the adoption of the driving mechanism of the smoke barrier, the smoke barrier will not be worn when rotating, and the movement trail of the smoke barrier is irregular and can be adjusted according to the installation position; and the driving mechanism is small in size and easy to install and produce.

The invention relates to a preparation method of a natural filtering material for a filter tip. The preparation method comprises the following steps: taking the plant stem pith material, and soaking in a high-molecular solution, wherein the soaking time is 0.5-5 hours, and the high-molecular solution is the solution prepared by soaking one or more substances of chitosan, Arabic gum, peach gum, polyvinyl pyrrolidone and water-soluble starch into water according to the weight percentage of 0.5-20%; and then filtering, placing into an oven of 102+ / -2 DEG C to dry, wherein the drying time is 1-3 hours; and finally crushing the dry stem pith material into fine particles, sieving through a 20-100 meshed sieve, obtaining the natural filtering material for a filter tip. The filtering material prepared by the invention can be matched with the Chinese cigarette suction style, and has small negative influence to the Chinese cigarette and relatively higher filtering efficiency of smoke harmful substances.

The invention discloses a tabletop milling machine, a gantry tabletop milling machine and a combined motion platform. The tabletop milling machine comprises an X-axis motion platform, a Y-axis motion platform and a Z-axis motion platform, wherein both the X-axis motion platform and the Y-axis motion platform respectively comprise a sliding platform and a sliding base; the sliding base of the Y-axis motion platform is fixed above the sliding platform of the X-axis motion platform; each sliding base comprises air floatation guide rails formed at both sides of the sliding base and a first grooveformed at the middle part of the sliding base; both the X-axis motion platform and the Y-axis motion platform respectively comprise a linear motor; each linear motor comprises a stator and a rotor; each stator is fixed at the bottom of the corresponding first groove; and each rotor is fixed on the bottom surface of the corresponding sliding platform and is arranged relative to the corresponding stator. By the mode, the feeding motion in the X-axis, Y-axis and Z-axis directions can be realized and the utilization rate of the space is improved.

The invention provides a fixing device of a conducting wire and a liquid crystal display backlight source module with the fixing device. The fixing device of the conducting wire provided by the invention comprises a fixing component, a corner-shaped baffle, a first side wall, a second side wall, a first elastic plate and a second elastic plate. The corner-shaped baffle is connected with the fixing component. The first side wall and the second side wall are used for composing the corner of the corner-shaped baffle. One end of the first elastic plate is arranged on the surface of the first side wall of the corner-shaped baffle and one end of the first elastic plate is arranged on the surface of the second side wall of the corner-shaped baffle. The first elastic plate and the second elastic plate are arranged opposite to each other and the shortest distance between the first elastic plate and the second elastic plate is shorter than the diameter of the conducting wire to be fixed. The invention further provides a liquid crystal display backlight source module with the fixing device. The invention has the advantages that the conducting wire fixing device adopts two elastic plates, which are arranged opposite to each other, to fix the conducting wire so that no surface damage can be caused by the elastic plates. The liquid crystal display backlight source module adopting the device can avoid the power line from abrasion by the fixing device.

The invention relates to a vibratory spiral fluidized horizontal shell-and-tube heat exchanger. Structures such as evenly distributed headers are used for improving the uniformity of fluidizing balls to enter heat exchange tubes. The clearance between the outer diameter of a steel wire spiral line and a pipe inner wall is more than two times of the diameter of the fluidizing ball. Dead zones during cleaning of fluidizing ball scale are eliminated. During operation, the fluidizing balls make spiral line motion under the push of a spiral flow, the centrifugal force of the fluidizing balls is naturally concentrated on the tube inner wall and pressure required for cleaning hard scale is produced. Sliding component velocity of the fluidizing balls on the tube inner wall takes an effect of automatically cleaning the hard scale. The fluidizing balls roll at high speed and violently and transversely agitate a boundary layer, the supersaturation degree of a stagnant layer is greatly reduced, the generation of hard scale is avoided or remarkably relieved and a more valuable antiscale effect is obtained. Since the inlet end of the steel wire spiral line which is arranged in each heat exchange tube is fixed and the tail end of the steel wire spiral line is free, the situation that the steel wire spiral line wears the tube inner wall is avoided. Therefore, the heat exchanger is suitable for all situations that hard scale is formed in horizontal shell-and-tube heat exchangers with all kinds of structures.

The invention discloses a mould locking device structure of a hollow plastic product forming machine, which belongs to the technical field of plastic product forming machines. The hollow plastic product forming machine comprises left and right mould bases. The mould locking device structure comprises a pair of deflection rod displacement action cylinder bases, a deflection rod displacement action cylinder, a deflection rod, a deflection rod rotating actuating mechanism, a pull rod base, a pull rod, a pin lock and a pin lock key, wherein the deflection rod displacement action cylinder bases are fixed on one side, which faces to the right mould base, of the left mould base; the deflection rod displacement action cylinder is fixed on the deflection rod displacement action cylinder bases and is provided with a piston; the deflection rod is arranged in a deflection rod hole; the deflection rod rotating actuating mechanism is arranged the left one in the pair of deflection rod displacement action cylinder bases of the deflection rod displacement action cylinder and is connected with the left end of the deflection rod; the pull rod base is fixed on one side, which faces to the left mould base, of the right mould base, and the pull rod base and the deflection rod displacement action cylinder bases correspond to each other; the pull rod is fixed on the pull rod base; the pin lock is fixed on the pull rod; the left end of the pin lock key is connected with a tabling joint of the deflection rod, and the right end of the pin lock key is matched with the pin lock. The mould locking device structure provided by the invention has the advantages that the module combining effect of left and right half modules is guaranteed, the service life is prolonged, and the integral structure is simple.

The invention discloses a planetary gear transmission which comprises a box, a planetary gear, a sun gear, an inner gear ring, a planetary gear shaft, a transmission shaft and at least two sliding bearings which are arranged on the planetary gear shaft in parallel in a sleeving mode in the axial direction and located between the planetary gear shaft and the planetary gear. The two sliding bearings are matched to form a sunken part; the sun gear is fixed to the transmission shaft, the sliding bearings are fixed to the planetary gear shaft or a planetary support or the planetary gear, and the sunken part limits axial motion of the planetary gear or a radial protruding portion of the planetary gear limits axial motion of the sunken part, so that the axial motion of the planetary gear is limited inside the sunken part or the radial protruding portion of the planetary gear shaft, and an axial load and a radial load of the planetary gear act on the inner wall face of the sunken part or the radial protruding portion of the planetary gear shaft; accordingly, the sliding bearings bear the axial load and the radial load of the planetary gear at the same time, the axial size and the weight of the transmission can be decreased, and the manufacturing and installing cost of the transmission is lowered.

The invention discloses an indirectly driven food processor, which comprises a container, a crushing cutter arranged in the container, a motor, a base internally provided with the motor, a driving shaft coupling arranged on a power output shaft of the motor, and a driven shaft coupling connected with the crushing cutter. The indirectly driven food processor is characterized in that: the driving shaft coupling and the driven shaft coupling are in non-contact connection. The driven shaft coupling can be rotatablely arranged in the container and is arranged in a floating mode relative to the container. The driving shaft coupling is made of magnet and the driven shaft coupling is made of metal. The driving shaft coupling and the driven shaft coupling are in non-contact transmission, which caneffectively solve the problem of abrasion between the driving shaft coupling and the driven shaft coupling; the container needs no cutter shaft hole, and sealing to thoroughly solve the problem of container water leakage; vibration and noise can be effectively relieved; the driven shaft coupling is arranged in a floating mode, which can effectively solve the problem of cutter blockage; and the driven shaft coupling and the crushing cutter are dismountable so that the container can be cleaned conveniently.

The invention provides a steel rail automatic detection device and method. The device comprises a steel rail carrying element, a steel rail position detecting element, a laser sensor detecting element, a high precision translation table and a control element, the steel rail carrying element, the steel rail position detecting element, the laser sensor detecting element, and the high precision translation table are connected with the control element, the laser sensor detecting element is arranged on the high precision translation table, the high precision translation table is used to drive the laser sensor detecting element to move, the steel rail carrying element comprises a retractable rail carrying table, the retractable rail carrying table is in a falling state when the retractable rail carrying table is in operation and is in a lifting state when the retractable rail carrying table is not in operation, the steel rail carrying element is used to carry short steel rails and prevents the short steel rails from falling from the downward line. The steel rail automatic detection device adopts the laser sensor detecting element to realize the non-contact detection of the steel rails, is free of detection probe wearing, and has the positive effects of high detection precision and small error.

The invention relates to a system and a process for desulfuration and denitration by pure oxygen dielectric barrier discharge in a flue, and belongs to the technical field of the desulfuration and denitration of flue gas in heat-engine plants. In the process, air is separated by an air separator, and separated oxygen enters a dielectric barrier discharge reactor; O2 molecules are activated, cracked or ionized in the reactor to form free radicals O or O3 and the like which have high oxidability; the oxidizing gas which is subjected to discharging is mixed with the flue gas quickly and fully through a spray device to be subjected to reaction, so that NO and SO2 in the flue gas are oxidized to form high-valence nitric oxides and high-valence sulfur oxides; and the oxidized flue gas enters an alkali liquor absorption tower, and is washed by alkali liquor to fulfill the aims of removing the nitric oxides and the sulfur oxides. In the process, due to pure oxygen discharging, the cost of producing the free radicals is low, the free radicals and the flue gas are mixed early, the removal efficiency of pollutants is high, the economic benefit is higher, and nitrates, nitrites, sulfates and the like are used as products to be recovered to realize the environment-friendly recycling of the pollutants.

The invention discloses a mud-water shield mud pipeline extension device and an extension method. The mud-water shield mud pipeline extension device and the extension method solve the problems of inflexible use and short service life of a mud pipeline extension device in the prior art. The mud-water shield mud pipeline extension device comprises a shield machine mud hard pipe, a mud hose, a walking frame mud hard pipe and a tunnel mud hard pipe which are sequentially connected. The walking frame mud hard pipe is movably arranged on a trailer through a walking mechanism. The mud hose is movablyarranged on the trailer through a sliding part. A mud pipe crane for hoisting the mud hard pipe is arranged on the trailer. According to the mud-water shield mud pipeline extension device and the extension method, a walking frame of a simple structure is adopted and moves along the track arranged on the side face of the trailer, and the occupation of the space of the trailer is reduced; the mud hose is not in direct contact with the trailer, the outer layer of the hose does not wear, and the service life of the mud hose is prolonged. In addition, the mud-water shield mud pipeline extension device is not limited by the tunnel turning radius and is suitable for mud-water shields with the large or small diameters, the structure is simple, the operation is flexible, the application range is wide, and the maintenance is convenient.

The invention discloses a two-dimensional galvanometric laser scanning teaching demonstration device and implementing method of the two-dimensional galvanometric laser scanning teaching demonstration device. The device comprises a two-dimensional galvanometric scanning module, an image track recorder and an upper computer human-computer interface. The human-computer interface is mainly used for drawing teaching demonstration graphics or characters and setting serial port communication. The upper computer human-computer interface comprises a display screen and a control button. The human-computer interface is set in the mode that corresponding commands are sent to the two-dimensional galvanometric scanning module by selecting different control keys according to a function menu on the display screen; the two-dimensional galvanometric scanning module is used for receiving commands of the upper computer operation interface, finishing command track decoding, reflector deflection control and laser switch control; the image track recorder is used for real-time recording and displaying of a scanned image track with a DPS image processor as the core. The device and method are simple in structure, low in cost, free of material consumption cost, free of larger investment and capable of simulating industrial laser scanning instruments to be used for teaching and meeting the teaching requirements.

The invention provides an electronic control fluid-link steering system for a heavy-duty vehicle and a control method thereof. The steering system comprises an engine, a slip type electromagnetic clutch, a steering oil pump, a steering valve, and a power cylinder, wherein the steering valve is connected with a steering wheel through an angle sensor. The steering system further comprises an electronic control unit (ECU) connected with the slip type electromagnetic clutch and the angle sensor. By the adoption of the invention, when a vehicle performs pivot steering or low-speed steering, the electromagnetic clutch is jointed completely and the steering oil pump runs at a high speed along with the engine, so as to provide large assistant force and meet the requirements on convenience of low-speed steering; when the vehicle performs high-speed steering, the electromagnetic clutch is jointed partially and the steering oil pump runs at low speed, so that small assistant force can be provided, the requirements on operating stability at high speed can be met, the engine load is reduced and other power consumptions are reduced; and when no steering is performed, the ECU outputs extremely small current, and the steering oil pump runs at extremely low rotating speed, so that the power consumption of the engine can be extremely lowered.

The invention relates to an outpatient and emergency transfusion management system based on RFID (Radio Frequency Identification Device) technology, wherein a hospital information system and a digitalized transfusion chamber are seamlessly linked together by combining an outpatient and emergency transfusion management intellectualized system based on the RFID technology with a wireless network technology; and a discrete distribution management is updated to be a methodic digitalized management; Compared with the conventional transfusion mode, the outpatient and emergency transfusion management system has the advantages that by the reconfirmation on patients and transfusion medicines of the RFID radiofrequency non-contact function and the wireless transmission system of a therapy vehicle, the possible medical errors can be further reduced. A more reliable guarantee is provided for therapy and nursing for transfusion patients; and by the system integration integrating software functions and hardware functions such as identity authentication and therapeutic treatment and rescue, a more comprehensive management mode is provided for therapy for the transfusion patients in a hospital, and a solution scheme which is advanced in technology, safe, reliable and feasible is provided for transfusion management.

The invention discloses a high-wear-resistant resin floorboard, which belongs to the field of building materials, and aims at solving the problems of poor wear resistant performance, moisture discharging difficulty and high manufacturing cost of the existing floorboard. The high-wear-resistant resin floorboard comprises a high-wear-resistant surface layer, a body layer and a bottom layer with a high heat insulation effect, wherein the body layer is positioned between the surface layer and the bottom layer; the surface layer, the body layer and the bottom layer are mutually bonded through bonding agents; a fixing groove is processed in one side surface of the resin floorboard; the side surface can be any one side surface; a positioning clamp post is processed on the side surface opposite to the side surface provided with the fixing groove; the fixing groove is matched with the positioning clamp post of the adjacent floorboard; micro liquid guide grooves in the height direction and the horizontal direction are processed in the fixing groove; the cross section of the micro liquid guide groove is in an arc shape; a layer of water absorption layer is arranged on the inner wall of the fixing groove; the water absorption layer and the fixing groove are connected in the bonding direction; open micro hole structures are formed inside the water absorption layer; water absorption resin is contained in the hole.

The invention provides a wind electricity tower tube support frame, and belongs to a mechanical component. The wind electricity tower tube support frame comprises a base, a rotating table, a gasket, a rotating shaft and a support table, wherein the rotating table is connected with the base through the rotating shaft; the gasket is positioned on the base and the rotating table; the support table is connected with the rotating table through a movable hinge. The wind electricity tower tube support frame is characterized in that a fixed support frame and a movable support frame are arranged on the support table; an arc-shaped support plate is respectively arranged on the fixed support frame and the movable support frame. The distance between the two support frames can be adjusted by the movable support frame; for wind electricity tower tubes in different sizes, the arc-shaped support frame can be well in contact with the outer walls of the wind electricity tower tubes, a good support effect is achieved, and the abrasion of the outer walls of the wind electricity tower tubes cannot be caused. The arc-shaped support plates and the support frames are connected through pin shafts, the dismounting and the mounting are convenient, and the arc-shaped support plates with proper radians can be replaced according to the sizes of the wind electricity tower tubes.

The invention relates to a storage battery monitoring activation device. The device comprises a controller U1, a data acquisition circuit, a charging and discharging control circuit, a discharging load RL and a communication circuit; the controller U1 is electrically connected with a storage battery pack to be tested through the data acquisition circuit; the controller U1 is electrically connectedwith the charging and discharging control circuit; the discharging load RL and an external mains supply are electrically connected with the battery pack to be tested through the charging and discharging control circuit; and the controller U1 is electrically connected with the communication circuit and is wirelessly connected with an external monitoring terminal through the communication circuit.With the storage battery monitoring activation device provided by the invention adopted, the performance of the battery pack can be monitored online, the remaining capacity of the battery pack can beestimated, and the performance data and the remaining capacity data can be transmitted the monitoring terminal.

The invention discloses a novel device for feeding syringe on disposable injection needle, which comprises a needle fetching board, a needle slot and a needle drop slot, the needle fetching board is provided with an electromagnet adhesive apparatus, which comprises an electromagnet strip, a magnet coil and a condenser block, the condenser can be in parallel connection with the magnet coil through a positive-negative transfer switch. The device can automatically insert a plurality of needle tubes into needle stands of corresponding numbers in one time.

Provided is a metal hard sealing butterfly valve with a moving valve seat. A first metal expansion joint is connected between the front end of the round sealing valve base and a valve body, a second metal expansion joint is connected between the rear end of the round sealing valve base and a valve body flange, and a valve seat driving device is connected between the round sealing valve seat and the valve body and drives the round sealing valve seat to move left and right along the axis of the valve body. When the valve is in the closed state, the round sealing valve seat moves to the position where the round sealing valve seat is connected with a valve plate in a sealing mode, and when the valve is in the open state, the round sealing valve seat moves to the position where the round sealing valve seat is separated from the valve plate. The metal hard sealing butterfly valve has the advantages that the two-way pressure bearing and sealing performance is achieved, and the effect of the valve seat driving device can guarantee the sealing specific pressure of a sealing pair; the spherical surface or regular conical surface metal hard sealing pair is adopted for the valve plate and the valve seat, the machining process is simple, the sealing pair can achieve surface contact easily, and the interchangeability of the sealing structure is good; the sealing valve seat is of a horizontal moving structure, and therefore the opening or closing movement is reliable.

The invention discloses a high-frequency loading servo vibration hydraulic cylinder which comprises a cylinder barrel, a cylinder end, a piston and a piston rod, wherein the cylinder barrel is connected with the cylinder end, the piston and the piston rod are arranged in the cylinder barrel, liquid hydrostatic bearing supporting structures are adopted at the two ends of the piston rod, a hydrostatic bearing is fixed to the cylinder end and supports the piston rod, a servo valve block is arranged above the cylinder barrel and provided with two servo valves which are connected in parallel, and a displacement sensor is arranged on one side of the cylinder barrel of the hydraulic cylinder. The high-frequency loading servo vibration hydraulic cylinder has the advantages of overcoming defects of a traditional cylinder under special conditions, being little in frictional resistance, reductive in starting pressure, short in response time, good in damping prevention property and oil liquid temperature control property, stable in motion and the like.

The invention relates to a construction method for enabling a cable to pass through a barrier. The construction method for enabling the cable to pass through the barrier sequentially includes following steps: firstly, confirming a pipe hole path so as to obtain the total length and the specification of a cable sleeve, prefabricating the cable sleeve by sections, threading a steel wire lead rope through the cable sleeve in advance, clearing the inner wall of the cable sleeve section by section, and performing anticorrosion and mouth repairing on the cable sleeve after a qualified pressure test on the cable sleeve is completed; then, performing a simulation experiment, obtaining a slide friction coefficient of the cable sleeve, figuring out the maximum slide traction resistance, judging whether the maximum slide traction resistance is larger than permissive pull force of the cable, and if yes, installing idler wheel hoops for a second experiment so as to obtain a rolling friction coefficient of the cable sleeve, figuring out the maximum rolling traction resistance during the cable passing process, and confirming specifications of traction facilities of a main steel wire rope and the like; finally, drilling pipe holes, enabling the cable to pass through the cable sleeve, using a winching to tow the cable, using an excavator to assist in cable feeding, feeding the cable in the cable sleeve for a section after installing each batch of the idler wheel hoops until the whole cable completely passes through the cable sleeve, and performing a performance test on the cable which passes through the cable sleeve after two end mouths of the cable sleeve are blocked. The construction method for enabling the cable to pass through the barrier can substantially reduce passing resistance of the cable, and is safe and reliable.