3403results about How to "Increased load-bearing capacity" patented technology

The present invention relates to improvements in drill slip assemblies for use in holding a drill pipe or other tubular member in a vertical position above or within a wellbore. The invention comprises a plurality of slip segments assembled in a slip bowl, each segment containing a plurality of dies which grip the tubular member to prevent any axial displacement. The invention provides at least three improvements over prior art drill slips. First, the outer surface of the slip segment assembly, particularly the lower nose region, is fully supported by the inner surface of the slip bowl such that no portion of the slip segment assembly extends below the bowl. Second, the slip segments are fabricated from forged steel, making them more durable and able to carry higher loads. Third, each die in the lowermost set of hardened dies is fabricated having a rounded bottom end with a tapered profile to complement the rounded bottom of the axial grooves cut into each slip segment.

The present invention relates to a magnetic suspension bearing supported by magnetic force, which comprises one or more magnets fixed on a shaft directly or indirectly which can rotate with said shaft, and matching magnets provided in a certain space, wherein the magnetic polarity and magnitude of magnetic force of the matching magnets match with the magnetic polarity and magnitude of magnetic force of said one or more magnets to achieve the full suspension rotation of said shaft, and said magnets and / or matching magnets are permanent magnets. The present invention is of simple design and large power, with many other advantages such as great rigidity and great load-bearing capability and widely use in various fields.

The atmospheric corrosion resistant steel with yield strength of 700 MPa level has the chemical composition comprising C 0.05-0.10 wt%, Si not more than 0.50 wt%, Mn 0.8-1.6 wt%, P not more than 0.020 wt%, S not more than 0.010 wt%, Al 0.01-0.05 wt%, Cu 0.20-0.55 wt%, Cr 0.40-0.80 wt%, Ni 0.12-0.40 wt%, Ca 0.001-0.006 wt%, N 0.001-0.006 wt% and Fe and inevitable impurity for the rest. Its production process includes the following steps: 1. smelting and casting to form steel billet; 2. heating the steel billet to over 1200 deg.c, finish rolling at 950 deg.c in the final temperature lower than 910 deg.c and lowered with the increased plate thickness; and 3. cooling in the rate of 5-15 deg / s to 450-650 deg.c, winding and air cooling to room temperature. The atmospheric corrosion resistant steel has excellent comprehensive mechanical performance, yield strength over 700 MPa, high weather resistance and other advantages.

The invention relates to an engineering oil pipe paint spraying device, in particular to an engineering oil pipe surface paint spraying device. According to the technical problem to be solved, the engineering oil pipe surface paint spraying device does not need assistance of manual labor, and is good in automatic performance, high in maneuverability, high in working efficiency, convenient to operate and capable of uniformly spraying paint to the surface of an engineering oil pipe. To solve the technical problem, the engineering oil pipe surface paint spraying device comprises a left support, a right support, a material collecting frame, a top plate, a sliding block, a sliding rail, a hollow pipe, a spraying head, an air cylinder, a hairbrush, a first motor, a first rotating shaft, a first bevel gear and the like. The left support and the right support are vertically arranged in a bilateral symmetry manner. The material collecting frame is arranged below the position between the left support and the right support. According to the engineering oil pipe surface paint spraying device, in the process of spraying the paint to the surface of the engineering oil pipe, while the engineering oil pipe rotates, the spraying head sprays the paint.

The invention provides a composite plate material of foam microcrystalline glass and pure microcrystalline glass. The composite plate material comprises a base body and a decoration surface, wherein the base body is made of a foam microcrystalline glass mixed material; the thickness of the base body is 50mm to 500mm; the decoration surface covers the surface of the base body and is made of pure microcrystalline glass granules; the thickness of the decoration surface is 3mm to 30mm. The invention also provides a manufacturing method of the composite plate material. The composite plate material of the foam microcrystalline glass and the pure microcrystalline glass, provided by the invention, can simultaneously replace a building material and a decoration material, and is small in specific gravity, high in strength, fireproof and corrosion-resistant; environment products which are difficultly handled in a natural environment and industrial wastes which are difficultly treated currently can be consumed; the environment stress is reduced.

A modular slotted drain assembly having a slotted drainpipe, one or more base drain members positioned in communication with the slot of the drainpipe, and one or more reducer drain members stacked atop the base drain members. The reducer drain members have non-parallel upper and lower edges, such that one end of a reducer drain member is taller than its other end. An assembly is created such that the slope of the upper edges of the reducer drain members is not parallel to the drainpipe axis, allowing the upper edges of the reducer drain members to correspond to the slope of the ground surface.

An antifriction composite system (1) for a bearing part (2), such as a sliding bearing part, with a metallic backing (3) and a functional coating (4), which comprises a top layer (5) with a friction-reducing effect. The functional coating (4) has an elastomer layer (6) lying directly under the top layer (5). The invention also relates to a bearing part (2) with an antifriction composite system (1) of this type.

A composite structure comprises a plurality of fiber insertions spaced relative to one another such that the fiber insertion density is non-uniform. An associated method is disclosed.

The present invention relates to high strength air corrosion resisting steel and its production process. The low alloy air corrosion resisting steel consists of C 0.05-0.10 wt%, Si not more than 0.75 wt%, Mn 1.0-1.6 wt%, P not more than 0.020 wt%, S not more than 0.010 wt%, Al 0.01-0.05 wt%, Cu 0.20-0.55 wt%, Cr 0.20-0.45 wt%, Ni 0.12-0.40 wt%, Ca 0.001-0.006 wt%, N 0.001-0.006 wt%, Nb not more than 0.07 wt%, Ti not more than 0.025 wt%, Mo not more than 0.35 wt%, and Fe and inevitable impurity for the rest. It is produced through conventional smelting and two stage rolling after being heated to over 1200 deg.c, and the rolling includes finish rolling with initial temperature of 950 deg.c, accumulated reduction degree not lower than 80 % and final temperature lower than 880 deg.c, cooling in the rate of 5-15 deg.c / s to 400-700 deg.c, coiling and air cooling to room temperature. It is used for vehicle, container, bridge, etc.

The invention discloses a PCC (Large Diameter Pipe Pile by using Cast-in-place Concrete) energy pile. The PCC energy pile comprises a PCC pile, a heat conducting liquid, a cover plate, a bottom plate, a heat conducting pipe, a heat collecting device and an inspection channel, wherein the bottom of the PCC pile is fully closed; a cover plate with holes is arranged at the top of the PCC pile; prepared holes are formed in one side at the upper part of the PCC pile; the heat conducting liquid is filled up in a cavity in the PCC pile; the heat conducting pipe penetrates through the holes in the cover plate and extends into the heat conducting liquid in the cavity in the PCC pile; the heat conducting pipe extending into the cavity in the PCC pile can adopt opened and closed modes; the inspection channel is formed in the side wall of the PCC pile; and the heat conducting pipe is led out of the cavity in the PCC pile through the holes in the cover plate or the inspection channel and connected with the heat collecting device to form a circulating channel of the heat conducting liquid. The invention further discloses a manufacturing method for the pile. The manufacturing method comprises the technical steps as follows: pouring the PCC pile; excavating pile core soil; making a bottom plate; mounting the heat conducting pipe and the cover plate; filling the heat conducting liquid; and starting a ground heat pump for forming a loop. The PCC energy pile is convenient to overhaul and maintain, wide in application range and low in construction cost, does not influence the bearing capacity, and is an economic, efficient, energy-saving and emission-reducing pile.

A cargo rack utilizing a structural beam in the form of three embodiments, two of the embodiments comprising a rib, one of which includes a recessed flange and a horizontal return flange, the other includes a standard angled flange and an angled return flange, the third embodiment includes a recessed flange and a horizontal return flange, structural beams used in a framework comprising a plurality of vertical posts containing key shaped apertures and a plurality of horizontal shelving members, structural beams contain nubs enabling structural beams to connect to vertical posts via key shaped apertures thereby enabling horizontal shelving members to be associated with structural beams and vertical posts, various attachments may be added to cargo rack when recessed structural beams are used via a slight clearance that is formed between the recessed edge and a slight taper on horizontal shelving member sides.

A temporary soil sheathing apparatus supports a set of intermediate bracing beams in a triangular supporting structure during pit excavation work for constructing an underground structure, so that it can satisfactorily support soil pressure. Thus, it is possible to prevent space from being reduced by a complicated supporting structure, reduce construction costs through reduced use of materials, and increase work space to improve productivity. The temporary soil sheathing apparatus simplifies a corner connecting structure, and reinforces ability to withstand the soil pressure transmitted from the bracing beams and wales. Thereby, it is possible to prevent space from being reduced by a complicated supporting structure, reduce construction costs through reduced use of materials, and increase work space to thus improve productivity.

The present invention relates to an anti-friction and anti-wear liquid coating composition for use with parts made of materials that have softening points below about 300° F. and articles so coated. The present invention also relates to a method of coating parts made from a low softening point materials with an anti-friction and anti-wear hard coating composition. The coating composition comprises a mixture of (i) solid lubricants comprising boron nitride, graphite and molybdenum disulfide, (ii) a thermoset resin system, (iii) catalyst for curing the resin system and (iv) a solvent system comprising highly volatile solvents. The coating composition is applied to the part and cured to form a coating on the part.

The invention provides a multi-rotor unmanned airplane with inclined wings and rotors. The structure of the unmanned airplane comprises a plurality of rotors, a pair of wings and two rotors, wherein the plurality of rotors are arranged on a connecting rod, the wings are symmetrically arranged on the left and right sides of a fuselage and can be inclined between the directions perpendicular to the fuselage and parallel to the fuselage, and the two rotors are installed on the wings and can be synchronously inclined with the wings. The invention further provides a control system and a control method of the multi-rotor unmanned airplane with the inclined wings and the rotors. The attitude of the unmanned airplane provided by the invention is fully completed by a rotor system which is symmetrically arranged on the connecting rod, the rotors arranged on the wings only provide thrust, the attitude is not influenced, thereby decoupling the attitude control and the speed control, the complexity and the control difficulty of a dynamic model are reduced, additional lifting force is provided by utilizing an aerodynamic effect of the wings, and the flight speed, the bearing capacity and the endurance efficiency of the multi-rotor unmanned airplane are improved.

The invention discloses a heavy duty stacker for containers. The heavy duty stacker comprises a stacker frame, a safety protection device, a loading platform, a container hooking and taking device, a lifting device, an operation driving device and an electrical control device, wherein the stacker frame comprises four upright posts, an upper cross beam and a lower cross beam; the safety protection device comprises a cargo state detection device, a broken rope protection device, a power outage protection device, a travel speed-limiting device, a detection and positioning device and a progression speed reduction, walking emergency stop and retreat speed reduction switch; the container hooking and taking device comprises a lower fork, a middle fork, an upper fork and a hooking and taking driving mechanism composed of a normally closed electromagnetic braking motor, a chain wheel and a chain; the lifting device comprises a speed reduction motor, a pulley group, a steel wire rope reel, an encoder and a steel wire rope; and the operation driving device comprises a motor, a driving wheel, a driven wheel and an encoder. The heavy duty stacker is reasonable in structural design, strong in operability, good in safety performance and good in stable performance, and can meet the loading demand of large containers at ports and docks, and be convenient for popularization.

The invention discloses a backpack-type walking power assisting device which comprises a supporting frame, wherein a back plate, straps, a backpack and a size-adjustable waistband are arranged on the supporting frame; a rotatable hip joint is mounted at the lower end of the supporting frame; a pair of lower limb exoskeletons are mounted on the hip joint; each lower limb exoskeleton comprises a thigh bone supporting mechanism, a leg bone supporting mechanism and a foot fixing mechanism; the leg bone supporting mechanism is elastically connected with the foot fixing mechanism; the thigh bone supporting mechanism comprises a thigh bone fixing plate and a first gravity balance mechanism; the leg bone supporting mechanism comprises a leg fixing plate and a second gravity balance mechanism; and the thigh bone fixing plate is elastically connected with the leg fixing plate. The backpack-type walking power assisting device has the advantages that the first gravity balance mechanism and the second gravity balance mechanism are used for balancing the lower limb gravity in a moving process of a human body in real time, thereby enabling a user to walk by following a movement trajectory of a human skeleton and reducing the physical output of the user; a pure mechanical structure design is adopted; the device cannot be influenced by an external environment; and the stability and reliability are high.

The invention relates to an automatic production line of a fuel cell stack. The automatic production line comprises a material taking and placing region, a stack lamination fastening region, a primaryperformance test region, an artificial assembly region, an artificial rework region, a part installation region, a secondary performance test region, a product off-line region, a manipulator and a control server, wherein the manipulator comprises a first manipulator, a second manipulator, a third manipulator, a fourth manipulator and a fifth manipulator, and the manipulators can slide along respective rails in a reciprocating way to take and place materials. In the automatic production line, a large part of production operation is completed by a mechanical program, high automation is achieved, modular and large-scale production of a fuel cell is easy to achieve, the continuity of production links is maintained, the production efficiency is substantially improved, the production cost is reduced, the automatic production line is suitable for producing different specifications of cell panels, is wide in application range and is flexible and simple to adjust, each production equipment isindependent, the production line is compact in layout, high in design flexibility, and compatibility, upgrading and transformation are easily achieved.

Narrow aerial and die-mount cams, each having a cam adapter, a driver and a slide sandwiched between the cam adapter and driver. The narrow aerial cam slide has an elongate primary portion that has a T-shaped cross-section and has a primary bearing surface, and the cam adapter has a rectangular recess. An elongate keeper plate having a longitudinal slot is secured to each side of the cam adapter adjacent the rectangular recess to slidably retain the primary portion of the slide within the longitudinal slots and the rectangular recess. The primary bearing surface and a pair of intermediate bearing surfaces formed in the slide below the primary portion slidably support the keeper plates and thus the cam adapter. The driver slidably supports the slide. The narrow die-mount cam is basically an inverted version of the aerial cam.

The invention relates to a waterproof and anti-corrosion repair mortar for a polymer cement-based concrete structure, in particular to a cement concrete repair material for a cement concrete structure, which is used for carrying out bonding reinforcement and repair on defects of municipal roads, municipal services, bridges and water conservancy projects (dams and gates). The waterproof and anti-corrosion repair mortar is prepared by mixed materials and water, and the mixed materials comprise the following components in parts by weight: 20-30 parts of portland cement, 0.01-0.05 part of high-performance water-reducing agent, 1-5 parts of high-aluminum cement, 15-30 parts of quartz sand, 25-60 parts of gravel and 1-3 parts of acrylic adhesive powder, 1-3 parts of fiber material, while the using amount of water accounts for 5-14% of the total parts of the mixed materials. Due to the adoption of the technical scheme, the waterproof and anti-corrosion repair mortar has the characteristics of good pressure resistance, high flexural strength, high bonding strength, good durability, convenient and fast construction, fast setting and early strength shrinkage control, and can greatly shorten the repair time and quickly resume the traffic in particular to roads.

The invention relates to a rack serving device (1) with a load-bearing means (4) displaceable in the height direction of a mast (2), the mast (2) being guided by means of bogie assemblies (7, 8) on bottom and top guide tracks and mounted so as to be displaceable along the guide tracks by means of a bottom and top friction-locking displacement drive (13, 14). The bottom and the top adjusting mechanisms are guided by means of height and lateral guide elements on the guide track and are designed to be displaceable relative to the guide tracks by means of a drive system (33). Arranged respectively between the displacement drives (13, 14) and bogie assemblies (7, 8) is a coupling mechanism (29), comprising at least two displaceable coupling parts (28) and, extending between the articulation axes of the coupling parts (28), at least one coupling connection (27) which is pivotable about the articulation axis substantially perpendicular to the longitudinal extension of the guide track relative to a coupling part (28) and, at an end region remote from this articulation axis, mounted so as to be slideable in a longitudinal guide extending substantially parallel with the longitudinal extension of the mast (2).

The invention discloses an ecological energy-saving and environment-friendly sustainable plant growing system. The plant growing system is characterized by comprising a water storage and supply module (1), a permeable isolating unit (2), a nutrient soil layer (4) and a drip irrigation system (3), wherein a single or a plurality of water storage and supply modules (1) form a plant growing base, the plant growing base is arranged on a roof or a soilless foundation, and the water storage and supply module (1) consists of an upper module and a lower module which are connected by splicing; the permeable isolating unit (2) is placed on the plant growing base, namely the upper part of the water storage and supply module (1); the nutrient soil layer (4) is encircled on the upper part of the permeable isolating unit (2); and the drip irrigation system (3) is arranged in the nutrient soil layer (4). The plant growing system is simple in structure and convenient to manufacture, and does not needmanual irrigation and maintenance under normal conditions.

The invention provides a continuous construction method for a concrete pile steel pipe column. The method comprises the following steps of: 1. treating the ground and building a pile hole; 2. prefabricating a steel reinforcement cage, a steel pipe and steel supports, wherein four support steel bars and at least two otic placodes are symmetrically arranged at the upper end of the steel pipe; 3. symmetrically installing four steel supports on the side of the pile hole and installing jacks on the steel supports; 4. Fixedly arranging identification steel bars and arranging ink flipped lines to be used as marking measuring lines on the outside of the top segment of the steel pipe; 5. placing the steel reinforcement cage in the pile hole and temporarily fixing the steel reinforcement cage; 6. vertically hanging the steel pipe to the pile hole, placing the lower end of the steel pipe into the steel reinforcement cage, and connecting the otic placodes of the steel pipe with the steel reinforcement cage by using hanging steel bars; 7. continuously vertically placing the steel pipe from the pile hole until the support steel bars are contacted with the steel supports; 8. measuring the verticality of the measuring lines (steel pipe) and adjusting the steel pipe by the jacks and the support steel bars; 9. sequentially and continuously carrying out concrete pouring on a concrete pile and a steel pipe column, and the like. According to the continuous construction method of the concrete pile steel pipe column, the construction is convenient and fast, the connection strength of the steel pipe column and the concrete pile can be enhanced.

A measurement control system for a multi-shaft supported air floatation platform, the system comprising a load feedback unit (5), an execution unit (6), a position measurement unit (7), a safety protection unit (8), a controller (9), a rotating motor (10), and a linear light source 11; the load feedback unit comprises M pressure sensors (5-1) and four differential sensors (5-2); the execution unit comprises M servo voice coil motors (6-1) and M servo voice coil motor drivers (6-2); the position measurement unit comprises a plane grating (7-1), M linear gratings (7-2) a linear array CCD (7-3), a tilt sensor (7-4), M electronic levels (7-5), and an indoor GPS (7-6); the safety protection unit comprises 2M proximity sensors (8-1) and M temperature sensors (8-2); and the linear array CCD consists of no few then six CCDs. The system solves the problems of leveling limitations and narrow application range of existing supporting platforms.

In a totally-enclosed fan-cooled motor wherein a drive side of a rotation shaft and a side opposite to the drive side are held by means of bearings and so that drive power would be transmitted from the drive side of the rotation shaft with which a rotor is formed into one body, wind is sent to an outer side of the motor in an axial direction of the rotation shaft by means of an external fan provided on the side opposite to the drive side to cool a stator in the air-tightly closed motor and air in the motor is circulated by means of an internal fan provided in the motor to cool a rotor, provided is a radiator mounted to the rotation shaft so as to be located on an outer side of the bearing holding the drive side of the rotation shaft, outside the motor, and in the vicinity of the bearing. This allows a cooling effect of the bearing provided on the drive side to be improved.

The invention discloses an electric power overhauling lifting platform which comprises a device base; supporting bases are arranged at one end of the device base and at the two sides of the device base; the supporting bases are in threaded connection with a group of supporting bolts and are equipped with a locating drill rod in a penetrating mode; a group of lifting oil cylinders is arranged on the upper part of the device base; the lifting oil cylinders are connected with a middle platform; a middle guard bar is arranged on the middle platform; a reduction motor is arranged at one side of the middle platform; the reduction motor is in key connection with a wire winding wheel; a suspender cable is wound on the wire winding wheel; a shear type lifting device is arranged on the middle platform; the top of the shear type lifting device is connected with the top platform; a top guard bar is arranged on the top platform; and a storage battery and an illuminating lamp are further arranged on the top platform. The electric power overhauling lifting platform is extremely good in stability, is stable in lifting, is not liable to shake, improves overhauling working safety, is reliable in locating, has flexible operation and also has an illuminating function.

The present invention belongs to medical equipment and relates to the application of electric irritation in rehabilitation treatment of dysfunctional organ or limb. The ankle and foot orthopedic device has ankle and foot bearing plate and leg bearing plate connected together. The ankle and foot bearing plate is in the shape of foot and has ventilating holes, plate electrode, socket, ring electrode and connecting hasp. The X-shaped leg bearing plate has transverse soft hinge, ventilating holes and connecting hasp. The present invention is suitable for use for patient of cerebral apoplexy in early stage, treating stage and rehabilitation stage to maintain the normal physiological posture of foot, prevent and correct foot deformation and restore gradually the normal physiological and moving functions.

A wrap-around style or end-loaded carton for enclosing articles such as cans in multiple rows is formed from a single blank of sheet material, and includes a three-ply top wall and an integrated composite handle that is centrally located so as to balance the load in the carton when the handle is raised to an upright position. The top wall includes an outer panel, and intermediate panel, and an inner top panel, each hingedly connected to another. The composite handle is struck from the outer panel and the intermediate panel and is liberated or partially detachable therefrom so as to be hingedly connected to the top wall, and rotatable to an upright position. When the handle is raised, at least a portion of each edge of the top wall is reinforced by at least one additional layer of carton material, and thus, is at least two plies thick.

The invention relates to building materials, in particular to an inorganic heat preserving decorating building plate. The plate aims to overcome the defects that an existing organic material is poor in fireproof property, and an existing inorganic heat preserving decorating plate needs to be bonded in the construction process. The novel inorganic heat preserving decorating building plate is provided with an integrated structure and does not need to be bonded. An inorganic heat preserving decorating building material comprises a two-layer structure. The two-layer structure comprises a heat preserving layer and a decorating layer covering the heat preserving layer. The heat preserving layer is made of a foaming microcrystal material. Preparing raw materials of the foaming microcrystal material comprise a microcrystal material, a foaming agent and a foam stabilizing agent. The decorating layer is made of a microcrystal material which is aluminum silicate microcrystal glass. The inorganic heat preserving decorating building plate has the good heat insulating and preserving property and sound insulating property, and is high in strength, good in fireproof property and comprehensive performance.