74results about How to "Overcome self-respect" patented technology

The invention discloses a low profile low RCS ultra wide band wide-angle scanning strong mutual coupling phased array antenna based on a polarization conversion metamaterial. The antenna can achieve two-dimensional wide-angle scanning in four octaves with a profile height of only 0.267 times of the high-frequency wavelength, the low profile requirement of the antenna is met, and meanwhile the RCS of the antenna is effectively reduced under the premise that the new polarization conversion material loaded does not affect the radiation performance of the antenna. The whole antenna structure mainly comprises a dielectric substrate (1), an interdigital dipole unit (2) printed on the dielectric substrate; rectangular patches (3) on both sides of the dipole; a strip line Balun (4) under the dielectric substrate of the antenna for connecting an antenna and a floor; a dielectric layer (6) below of the balun and having a metal floor layer (5) on the upper surface; a polarization conversion metamaterial (7) which is loaded on the metal floor; (8) a centimeter network on the lower surface of the dielectric layer; and a microwave coaxial cable (9) fed to the centimeter network.

The invention discloses a full-automatic double-ccd (charge-coupled device) photosensitive element digital microscope, which is used for acquiring specimen image information by synchronously using a colored ccd photosensitive element and a black-and-white ccd photosensitive element so as to obtain a multifocal plane holographic three-dimensional image, synchronously outputting a specimen reading result according to nucleus integral optical density acquired by the black-and-white ccd photosensitive element, and finally outputting a specimen picture and text report. Additionally, the full-automatic double-ccd photosensitive element digital microscope comprises a slide uploading and unloading device and a horizontal migration clamping device for automatically changing the specimen slide, and then, the slide is located in three dimensions through a three-dimensional frame, so that the colored ccd photosensitive element and the black-and-white ccd photosensitive element can conveniently acquire the image information of the specimen. Thus, the full-automatic double-ccd photosensitive element digital microscope can be used for not only performing morphological observation on the specimen, but also taking digital images for a dyed tissue section so as to form the multi-focal plane holographic three-dimensional image, so that all the information of the cell can be observed in multiple layers and multiple focal planes, and accuracy of early diagnosis is greatly improved.

The invention provides a self-sticking type waterproof board, drainage board and waterproofing and drainage board which comprises a waterproof board, drainage board and waterproofing and drainage board body and a self-sticking layer, and the self-sticking layer is combined on the body. A sticking tape can be used as the self-sticking layer, the self-sticking layer is combined with the waterproof board, drainage board and waterproofing and drainage board body in a hot melting or cold sticking manner, and the self-sticking layer is stuck to a tunnel lining buffer layer during installation so that hanging fixation of the waterproof board, drainage board and waterproofing and drainage board can be realized. According to the waterproof board, drainage board and waterproofing and drainage board, the structure style is simple, the installation technology is convenient and fast, and the problems that hanging of the tunnel waterproof board, drainage board and waterproofing and drainage board is difficult, installation is not in place and tunnel leakage is caused by body damage are solved.

The invention discloses a hydraulic press-down system of fusion pressure with constant back pressure and proportional control in the hydraulic mechanic technique domain, which comprises the following parts: press-down device, electric control part, oil source part, safe protection and stabilized voltage part, proportional control part and movement conversion part, wherein one outlet of oil source part connects two hydraulic cylinder cavities of press-down device through safe protection and stabilized voltage part and movement conversion part separately; the other outlet of oil source part connects hydraulic cylinder non-rod cavity of press-down device through safe protection and stabilized voltage part, proportional control part and movement conversion part separately; the oil return hole and oil drain hole connect the oil tank of oil source part separately; the oil source part, proportional control part and movement conversion part control the whole system operation through electric control part separately. The invention can press downward force for model from zero, which realizes real-time precise trace of preset curve.

A hydraulic groove rolling machine for processing bent metal pipe grooves comprises a machine frame; a motor and an oil cylinder are arranged in the machine frame; the motor drives a knurl wheel through a main shaft; the oil cylinder drives a press wheel through a press wheel rack; the motor, the main shaft and the knurl wheel are vertically arranged in the machine frame; the knurl wheel and the press wheel are horizontally arranged; the outer wall of the knurl wheel comprises a press groove and a wheel surface, wherein the wheel surface is a tapered wheel surface; a support baffle is arranged below the knurl wheel; and a workpiece is arranged on the support baffle. According to the scheme, the motor, the main shaft and the knurl wheel are vertically arranged up and down in a straight line so as to enable the gravity of the workpiece (a bent pipe) to fall on the support baffle below the knurl wheel, so that during operation, the inner and outer walls of the workpiece are rolled and extruded, the self weight of the bent pipe is overcome; and moreover, the wheel surface of the outer wall of the knurl wheel is designed to be a tapered wheel surface so as to be adapted to the inner and outer arc surfaces at different positions, so that the pipe does not shift during processing, processing precision and quality of the arc surfaces are guaranteed, and an unexpected effect is achieved.

The invention relates to a deepwater liquid level exploration cable which consists of four polyethylene insulated wire cores, one steel wire reinforcing core, an inner protective layer, woven aramid fiber reinforcing layers and an outer protective layer, wherein an aramid fiber filament is woven outside each polyethylene insulated wire core so that insulated core wires are not easy to break and the reliability of signal transmission is ensured. A central steel wire reinforcing core can bear all the weight of probe equipment and a cable so that the tensile strength of the cable is promoted; the inner protective layer adopts waterproof polyethylene to ensure that the cable is suitable for working in a deepwater environment for a long time; inner and outer woven aramid fiber reinforcing layers greatly enhance the tensile strength of the cable; and the outer protective layer adopts polyether type polyurethane, and the excellent chemical reagent resistance of the polyether type polyurethane ensures that the cable can work underwater for a long time.

The invention discloses a hydrodynamic suspension polishing device based on a hydraulic mechanism. The hydrodynamic suspension polishing device comprises a lifting assembly and a polishing assembly, wherein the lifting assembly comprises a base, a rolling guide rail, a sliding shaft sleeve, a ball screw, a coupler, a middle supporting plate, an upper cover plate and a stepping motor; the polishing assembly comprises a polishing tool disc, a polishing solution container, a second coupler, a ball spline shaft, a fixed plate, a guide column, a movable plate, a micro hydraulic cylinder, a hydraulic pump, a belt wheel, a synchronous belt and a servo motor. The hydrodynamic suspension polishing device has the following advantages: the hydraulic mechanism is adopted to overcome the self-weight of the polishing assembly so as to realize the purpose that hydrodynamic pressure suspends a polishing disc during the polishing process; polishing solution is adopted to immerse a polishing tool and the immersion liquid environment of workpieces so as to weaken the negative effect caused by friction heat during the polishing process; the servo motor directly drives the polishing tool disc through the belt wheel to avoid the error accumulation caused by the complicated transmission link and improve the processing precision.

The invention provides an assembled monolithic shear wall building structure and a construction method thereof. The assembled monolithic shear wall building structure comprises prefabricated walls (1)without windows, prefabricated walls (2) with windows, floor boards (3), first wall columns (4), second wall columns (5) and third wall columns (6), wherein each prefabricated wall (2) with windows comprises a window reserving frame, window reserving frame beams and walls on two sides of the window reserving frame; a plurality of parallel full-length connecting vertical holes (7) are formed in the prefabricated walls (1) without windows, the prefabricated walls (2) with windows, the floor boards (3), the first wall columns (4), the second wall columns (5) and the third wall columns (6) in theheight direction, and a plurality of full-length transverse grooves (8) are formed in the width direction; transverse main reinforcements (9) are arranged in the full-length transverse grooves (8), and vertical main reinforcements (10) are arranged in the full-length connecting vertical holes (7). The assembled monolithic shear wall building structure has the characteristics of high constructionspeed, reliable quality and good anti-seismic property.

The present invention relates to a device (1) for filling a container with a filling product, and preferably for filling a containerr with carbonated beverages in drinks filling devices. The device comprises a drive unit (5) for applying a sealing sleeve (3 ) to a container inlet of a container to be filled, wherein the drive unit (5) comprises a piston (54), which separates a working chamber (58) from a pre-pressed chamber (56), a pressure is applied to the pre-pressed chamber (56) in advance to make the the piston (54) to reset. A pressure-equalizing device (7) is disposed between the pre-pressed chamber (56) and a working chamber (58), wherein the pressure-equalizing device (7) is used for holding a predetermined pressure range, preferably between an upper limit and a lower limit in the pre-pressed chamber (56).

The invention discloses an automatic condensed water drainage device of a charge air cooler, which extends into the lowest position of a gas inlet pipe of an internal combustion engine and comprises a piston outer sleeve, a piston body and an elastic device, wherein the piston outer sleeve is in a hollow structure, an opening is arranged at the upper end of the piston outer sleeve, a connecting bulge for connecting with the gas inlet pipe of the internal combustion engine is arranged at the lower part of the peripheral surface of the piston outer sleeve, a plurality of water inlet holes penetrating through the piston outer sleeve in the thickness direction are arranged in the positions which are adjacent to the connecting bulge, the water inlet holes are positioned above the connecting bulge and a plurality of water outlet holes penetrating through the piston outer sleeve in the thickness direction are arranged on the lower end surface of the piston outer sleeve; the piston body is arranged in the piston outer sleeve in a way of sliding up and down; and the elastic device is arranged between the piston body and the piston outer sleeve, when the elastic device is in a normal state, the piston body is positioned at the upper part of the piston outer sleeve. The automatic condensed water drainage device of the charge air cooler can reliably ensure that water drainage can be performed after shutdown of the internal combustion engine or before startup.

The invention belongs to the field of tunnel waterproof and drainage materials andparticularly relates to a waterproof plate, a drainage plate and a drainage-proof plate capable of being attached to aself-adhesive cloth of the tunnels and achieving adhesive type fixing and using method thereof. The waterproof plate, the drainage plate and the drainage-proof plate structurally comprise a waterproof plate body, and the waterproof plate body is provided with an attaching mechanism formed by a hook face, a foundation body, a back gum layer, a first attaching layer and a second attaching layer, wherein the hook face and the back gum layer are correspondingly arranged on the front and rear faces of the foundation body, the first attaching layer is attached on the back gum layer, and the secondattaching layer is combined on the first attaching layer. When in use, the hook face forming the tunnel waterproof plate, drainage plate and the drainage-proof plate is directly attached on the self-adhesive cloth layer which is fixed to the tunnel primary support by fasteners. The waterproof plate, drainage plate and the drainage-proof plate have the characteristics of being simple in structure and easy to fix.

The invention discloses a prefabricated prestressed composite box girder, including a plurality of box beam units. Each box beam unit includes a bottom plate, a web plate, an end plate and a top plate; the bottom plate is a concrete prefabricated plate whose upper surface is embedded with the multiple of mounting bases in the long direction of the plate; the tops of web plates are provided with connection stiffeners, the number of the web plates is matched with the number of the mounting bases, and all web plates are arranged side by side in the length direction of the plates and detachably connected with the mounting bases; the end plate is placed on the bottom plate and detachably connected between two adjacent web plates; and the top plate is a concrete precast plate, on which a post-pouring hole through the thickness of the plate is reserved, and the top plate is placed on the web plates, so that the post-pouring hole is arranged outside the connection stiffener in a sleeved mode.As all parts are prefabricated in a factory, the construction speed and quality are improved, by adopting the detachable connected web plates, the problem that the main tensile stress of concrete neara bearing is not enough is solved, the additional stress of steel corrugated web plates caused by shrinkage deformation in the curing process of traditional mixed beam concrete plates can be avoided,and the bearing property is ensured.

The invention provides a self-propelled cabbage harvester. The self-propelled cabbage harvester comprises a walking platform, a pulling root-cutting mechanism, a transporting lifting mechanism, a jacking conveying mechanism, leaf stripping mechanisms and a collection device; the pulling root-cutting mechanism is arranged on the front portion of one side of the walking platform and comprises a double-disc cutting knife and a V-shaped cutting knife, and the V-shaped cutting knife is arranged on the rear portion of the double-disc cutting knife; a transporting lifting mechanism which is located in the discharging direction of the pulling root-cutting mechanism is arranged on one side of the walking platform, and the jacking conveying mechanism is arranged on the upper portion of the V-shapedcutting knife of the pulling root-cutting mechanism and the upper portion of the transporting lifting mechanism; the leaf stripping mechanisms comprise a primary leaf stripping mechanism and a secondary leaf stripping mechanism, the primary leaf stripping mechanism is arranged between the V-shaped cutting knife and the transporting lifting mechanism, and the secondary leaf stripping mechanism is arranged between the transporting lifting mechanism and the collection device. The self-propelled cabbage harvester is compact in structure and scientific and reasonable in design, can achieve full automation of cabbage harvest, and has the advantages of being high in harvest efficiency and little in harvest damage.

The invention belongs to the technical field of nondestructive testing of rock engineering, and discloses an all-directional multi-angle acoustic testing auxiliary device which comprises a coupling medium conveyer structure and a lifting bracket, wherein the coupling medium conveyer structure is used for conveying a coupling medium between an acoustic testing probe and a hole wall; the lifting bracket is connected with the coupling medium conveyer structure and is used for adjusting the contact position of the acoustic testing probe and the hole wall; the acoustic testing probe is fixed on the coupling medium conveyer structure when acoustic testing operation is executed; the coupling medium conveyer structure is lifted through the lifting bracket until the acoustic testing probe is propped against the hole wall; and the coupling medium is conveyed to a contact area of the acoustic testing probe and the hole wall by the coupling medium conveyer structure. The invention provides an auxiliary device capable of improving the acoustic measurement reliability.

The invention discloses a high-strength concrete formula production process. The concrete is prepared from, by weight, 17-22 parts of cement, 21-31 parts of sand, 20-35 parts of stone raw materials, 15-25 parts of mineral admixtures, 4-10 parts of steel fibers and 13-17 parts of water. The beneficial effects of the high-strength concrete formula production process are that: by adopting the sand with low water content, the raw material ratio of the concrete during stirring can be more accurate; by using the clean dust-free cubic broken stone with the rough surface and the edges, the right-angled mixing effect of the stone raw material and other materials can be better; the mineral admixture can be slowly hydrated in the presence of water and lime; a cementitious substance of increased strength is generated to fill pores in the concrete, and the silicon powder and the zeolite powder are of amorphous and compact structures, so that the microstructure of a two-phase interface area is obviously improved, the strength, the impermeability and the durability of the concrete can be improved, and the silicon powder can enable the concrete to have very good workability and stability.

The invention relates to the technical field of textile winding equipment, and discloses a spinning machine high precision winding device based on a Bernoulli principle. The spinning machine high precision winding device based on the Bernoulli principle which comprises a base, a vent groove, an inlet hole and a through hole are formed in the upper part of a thread cylinder, a first spring is connected into the thread cylinder, the right end of a baffle is connected with a metal ball, and the right end of the metal ball is connected with a variable resistance; and a permanent magnet is connected into a bundle tube, the upper end of the permanent magnet is connected with a cutting knife, the upper end of a second spring is connected with a thread pressing block, and a coil is arranged on thelower side of the permanent magnet. The air velocity through the lower end of the vent groove is much larger than the upper end of the vent groove, air of an air inlet hole is compressed in the middle of the vent groove, the air velocity in the middle of the vent groove is accelerated, the baffle moves to the position of the through hole, the metal ball at the right end of the baffle slides on the variable resistance, the resistance of the variable resistance becomes larger, the speed of a second rotating shaft decreases, and the structure solves the problem of uneven yarn winding on a yarn storage device.

The invention discloses a one-way automatic decompression valve structure for an escape capsule and relates to a one-way automatic decompression pipeline of an underground escape capsule of a coal mine. The one-way automatic decompression valve structure comprises a valve body (2), an aluminum valve core (3), a spring (4) and an inner adjusting screw (5). A cavity is arranged in the valve body (2), and an air inlet (1) and an air outlet (8) for air flow to go in and out are formed in the outer wall of the cavity. The aluminum valve core (3) is arranged in the valve body (2), and the periphery of the end portion of the aluminum valve core (3) butts against a step on the inner side of the air inlet (1). The inner adjusting screw (5) is arranged in a hole in a valve cover at the upper end of the valve body (2), and the spring (4) for butting the aluminum valve core (3) tightly is arranged below the inner adjusting screw (5). By means of the one-way automatic decompression valve structure, the problem that the underground escape capsule of the coal mine lacks the decompression valve which is reasonable in structure and good in sealing performance and safety and used for the decompression pipeline is solved.

The invention provides a robot capable of carrying out equilibrium running. The robot capable of carrying out equilibrium running comprises a sliding rail, a mechanical arm and an installation plate.The mechanical arm is arranged on the installation plate in a vertically slidable manner. The robot capable of carrying out equilibrium running further comprises a driving mechanism used for driving the mechanical arm to move upwards or downwards. The driving mechanism comprises a motor and a belt pulley assembly which are matched with each other. The motor is fixed to the sliding rail. The belt pulley assembly is connected with the mechanical arm. The installation plate is further provided with a balance cylinder. The balance cylinder comprises a cylinder barrel and a piston rod. The cylinderbarrel and the installation plate are fixedly connected. The piston rod is connected with the mechanical arm. The upper end of the cylinder barrel communicates with the outside. An air inlet is formed in the lower end of the cylinder barrel. The air inlet is connected with a pressure regulation valve, so that the piston rod applies the supporting force of the preset magnitude on the mechanical arm. According to the robot capable of carrying out equilibrium running, compared with the prior art, the balance cylinder can overcome the dead-weight of the mechanical arm, the influence caused by thedead-weight of the mechanical arm on the output torque of the motor is avoided, it can be effectively avoided that a motor fails, the mechanical arm can run stably in the vertical direction, and theworking efficiency is improved.

The invention provides a prestressed steel supporting system for a deep foundation pit, and belongs to the technical field of foundation pit supporting systems. The prestressed steel supporting system comprises a plurality of prestressed beams mounted on the inner side of a structural beam and circumferentially distributed at intervals. The prestressed steel supporting system is different from a traditional anchoring mode, the prestress is applied to a pull rod through the arrangement of an embedded part and a tensioner, and the system can be used for reinforcing and supporting the structural beam so as to balance the external pressure of a foundation pit and improve the supporting stability of the foundation pit; through the arrangement of a protection tube shell and a spherical clamp, the assembly process of the pull rod can be simplified, the installation efficiency can be improved, after the pull rod is subjected to prestress, the pull rod can adaptively move in the protection tube shell, rigid contact between the pull rod and a connection beam is prevented, the pull rod and the connection beam are prevented from being damaged, and then the service life is prolonged; in addition, the prestressed beams provided by the embodiment of the invention can be repeatedly used, and the system has the advantages of safety, energy conservation, environmental protection and the like.

The invention discloses a wood sculpture wood chip removing and collecting device. The wood sculpture wood chip removing and collecting device structurally comprises a fan cover chip removing wheel cap, a bundling and pressing cylinder, a lifting handle, a supporting frame sleeve, a collecting groove cylinder, a rubber sleeve and a wire. According to the wood sculpture wood chip removing and collecting device, the fan cover chip removing wheel cap is matched with the bundling and pressing cylinder, so that the air draft effect of a sliding cavity of a thin frame ring and a shutter fin plate isformed; and a sliding frame cushion block and a suction swing frame body are used for alternately scraping and cutting a curled wood chip strip, so that a reinforcing rib thin rod is matched with thesuction swing frame body to form an interactive dynamic and static combined scraping and brushing effect, the linkage of an overall mechanical rod piece and the effect of sucking and inserting the bundling and pressing cylinder into the air wall are improved, wood chips after wood sculpture can be guided into the collecting groove cylinder in a cover cap absorption effect, the drying effect of centralized collection of the wood chips is improved, the situation that the dead weight of the waste chips is interfered by water washing dry and wet mixing is avoided, the pretreatment effect of the broken chips is also improved, the compactness of the wood chip compaction in the later period is guaranteed, the block is light and convenient to carry and treat, the overall wood chip removing and collecting effect is improved, and the rapid flexibility of the wood sculpture after being improved is guaranteed.

The invention relates to a zero-pressure opening type remotely-controlled float valve, comprising a main valve and a control valve, wherein the main valve comprises a valve body, a valve seat, a valve disk, a valve rod and a valve cover; and the control valve is communicated with a main valve control room. The zero-pressure opening type remotely-controlled float valve is characterized in that a zero-pressure opening device composed of a pull rod, a lower spring seat, an upper spring seat, a spring and a setting nut is arranged on the upper end of the valve rod; the lower end of the pull rod is fixedly connected with the upper end of the valve rod; the center of the lower spring seat is fixedly and hermetically installed on the valve cover after penetrating the pull rod and matched with the pull rod in a motive seal manner; the upper spring seat is fixedly installed on the pull rod via the setting nut; and the spring is installed between the lower spring seat and the upper spring seat. The zero-pressure opening device has the advantages of overcoming the dead weights of the valve disk and the valve rod of the main valve to ensure that the valve disk of the main valve is in a normally open state and still supplying water to a water-supplying object under the condition of a medium pressure of lower than 0.05Mpa so that the control functions of opening the system under a zero pressure and supplying the water under a low pressure are fulfilled. The zero-pressure opening type remotely-controlled float valve is a control valve suitable for the water level of a water tank, a pool and a water tower.

The invention discloses a block check valve for cutting off or recovering medium return of an oil path of an oil supply system and provides a low-resistance backflow preventer which is reliable in sealing performance, durable, capable of closing a valve stably, and small in pressure fluctuation. According to the technical scheme, a valve rod is connected with a check valve seat located under a check valve body through a valve deck with an arched section and a reset spring arranged in the valve deck; in the return state, a flow medium entering a joint valve body tube downwards pushes the valvedeck, the reset spring is driven to reversely push the check valve body to the initial position, the sealing surface of the check valve body is attached to a flange sealing ring in linear contact withthe end direction of the check valve body, and thus, the flow medium is prevented from flowing back to an inlet of the valve from an outlet; and in this way, the flow direction of the flow medium ischanged, cut-off or recovery of the flow medium between an upstream valve cavity and a downstream cavity of the valve rod is controlled, and flow control for blockage or zero-pressure blockage is achieved. By adoption of the block check valve, the defects that in the prior art, a check valve body is large in size, high in weight, difficult to assemble and large in resistance are overcome.

The invention discloses an adjustable magnetic levitation oil mist sealing device. Multiple upper and lower adjusting screws where upper and lower adjusting magnetic columns are fixed are arranged onan upper valve seat ring and a lower valve seat ring, upper limiting inner magnetic block and a lower limiting inner magnetic block which are in pairs and opposite in N pole are fixed in each upper limiting groove and each lower limiting groove symmetric with the upper limiting groove, and multiple or multiple pairs of upper and lower ring magnetic columns are embedded into the outer diameter of an upper floating seal ring and the outer diameter of a lower floating seal ring, wherein the N pole of the upper and lower ring magnetic columns is opposite to that of the upper and lower adjusting magnetic columns; upper and lower ring outer magnetic strips are embedded symmetrically respectively, the N poles are correspondingly placed into the centers of N pole regions of the upper and lower limiting inner magnetic blocks, the left ends and the right ends of the upper and lower floating seal rings are embedded into the upper and lower end magnetic columns with the S poles opposite to the N poles, an upper seal cover and a lower seal cover are fixed to an outer flange through connecting bolts, the upper valve seat ring and the lower valve seat ring are connected into a whole ring throughan upper cover connecting face and a lower cover connecting face, and the whole ring is fixed to a bearing end cover. The related technical scheme will certainly be widely used in the electric generator field and other related fields.

The invention relates to a green and environment-friendly prefabricated inner wallboard and a manufacturing method thereof. The green and environment-friendly prefabricated inner wallboard comprises the following dry materials in percentage by weight: 42.5 R low-alkali sulfoaluminate, 20%-27% of micro-expansive cement; 4%-8% of sand; 69%-72% of a coal slag and building slag mixture, and water, wherein the weight ratio of water to the dry material is 1: (5-6). The environment-friendly prefabricated inner wallboard has the advantages of environmental friendliness, cracking resistance, and high strength.

A hydraulic groove rolling machine for processing bent metal pipe grooves comprises a machine frame; a motor and an oil cylinder are arranged in the machine frame; the motor drives a knurl wheel through a main shaft; the oil cylinder drives a press wheel through a press wheel rack; the motor, the main shaft and the knurl wheel are vertically arranged in the machine frame; the knurl wheel and the press wheel are horizontally arranged; the outer wall of the knurl wheel comprises a press groove and a wheel surface, wherein the wheel surface is a tapered wheel surface; a support baffle is arranged below the knurl wheel; and a workpiece is arranged on the support baffle. According to the scheme, the motor, the main shaft and the knurl wheel are vertically arranged up and down in a straight line so as to enable the gravity of the workpiece (a bent pipe) to fall on the support baffle below the knurl wheel, so that during operation, the inner and outer walls of the workpiece are rolled and extruded, the self weight of the bent pipe is overcome; and moreover, the wheel surface of the outer wall of the knurl wheel is designed to be a tapered wheel surface so as to be adapted to the inner and outer arc surfaces at different positions, so that the pipe does not shift during processing, processing precision and quality of the arc surfaces are guaranteed, and an unexpected effect is achieved.

The invention belongs to the technical field of precision machining and testing and provides a novel counter weight balance system and a using method. The novel counter weight balance system is a counter weight system based on a constant load spring device, the work load balance is achieved, meanwhile large self weight of a traditional counter weight is avoided, and the borne pressure and movementdeformation of supporting parts are reduced; the complex problems which exist on aspects of structural design and machining processes of a spring counter weight system are solved; through a double-way locking structure, the rope slipping phenomenon of the tail end of a rope is avoided; and by adopting the mode of adapter-connection plate side surface plastic laminating and end surface plain holedistribution and the method of guiding wheel axial adjustment, the oscillatory motion phenomenon caused by centroid transient shift is reduced, and thus stable movement, in a back surface of an L-shaped adapter plate, of the adapter-connection plate is achieved. The novel counter weight balance system has the advantages that the structure is simple, designing and machining are convenient, the pressure bearing deformation of supporting members is small, and movement is stable, and has good market application prospects and popularization value.

The invention relates to a monorail crane lifting beam hydraulic control system and a working method thereof. The monorail crane lifting beam hydraulic control system comprises a lifting beam lifting loop, an energy accumulator manual liquid filling loop, an energy accumulator automatic liquid filling loop, a lifting beam oil supply loop, an energy accumulator pressure maintaining loop and a walking oil supply pump assembly. The energy accumulator manual liquid filling loop comprises an energy accumulator, a pneumatic pump and a manual pump, the pneumatic pump and the manual pump are both communicated with the energy accumulator, and on the basis of the hydraulic transmission control technology and the electrical control technology, the control system of the hoisting beam of the monorail crane is optimized under the related technical conditions of safe use of the hoisting beam of the explosion-proof diesel engine monorail crane, and the safety of the hoisting beam of the explosion-proof diesel engine monorail crane is improved. A hoisting beam emergency treatment function is added, so that the safety of a monorail crane hoisting beam control system is improved, the hoisting beam emergency treatment working time is saved, and the labor intensity of hoisting beam emergency treatment operators is reduced; therefore, the monorail crane locomotive is more suitable for working in complex roadways with large underground gradient, multiple curves, waved and fluctuated roads, long distance, wet and easy-to-slide road surfaces, narrow roadway sections and the like of a coal mine.

The invention relate to an internal heat insulation concrete block and the production method. the technological scheme is that (1) water interfacial agent is pasted to two faces of heat insulation material adopted to mold and die in dimension; (2) it is set into mold and die;(3) several reinforced ribs are assembled; (4) brick material configured is poured into mold and die; (5) it is quickly frozen. The invention is provided with the following merits that 1, wall heat insulation construction is accomplished while walling construction is done so as to simplify construction and decrease cost by the internal heat insulation material in the invention; 2, because of continuous collocation for heat insulation material in the invention, heat insulation material of adjacent brick blocks is connected so that an integral heat insulation layer is formed when brick block is built. The architecture applying the invention has good performance for heat insulation.

The present invention discloses an active flexible force control device comprising a force control body including an upper cover, a shield and a bottom plate. The force control body is internally provided with a fixing mechanism, an intermediate movement connecting mechanism and a moving platform mechanism. The intermediate movement connecting mechanism is arranged on and slides along the fixing mechanism, and the moving platform mechanism is arranged on the lower side of the upper cover and the moving platform mechanism is slidable along the fixing mechanism. The upper cover is provided with a screw hole, and a force control object to be controlled is installed on the force control body through the screw hole. The force control body is also provided with a linear grating sensor for detecting the position change of the moving platform mechanism. The device cost is low, the versatility is strong, the installation is flexible and easy, and the control body can install various custom tools to carry on the force control. The dynamic response speed is fast and the force control precision is high. A servo motor is adopted to form a fully-closed loop with the linear grating sensor and an inclination angle sensor, the deadweight and load can be overcome, and the two-way force control and load range can be adjusted easily.