409results about How to "Little wear" patented technology

The invention relates to a low-ratio biomass circulating fluidized bed boiler and a combustion method thereof, relating to a circulating fluidized bed boiler and a combustion method thereof and solving the problems of difficult feeding, grate slagging, bed material coking, tempering and output reduction, and the like existing in the operation of traditional grate furnaces and circulating fluidized bed boilers. A middle air chamber corresponds to the middle of a dense-phase area at the lower part, lateral grid plates are arranged between a lateral air chamber and the dense-phase area at the lower part, and a medium-temperature steam-cooled cyclone separator is arranged at the joint between a flue shaft at the tail part and a health outlet of a boiler body, respectively communicated with the flue shaft and the health outlet and communicated with the dense-phase area at the lower part through a material returner. The method adopts a negative-pressure feeding manner so that the fluidization air velocity of a high-speed area of the dense-phase area at the lower part is 4-5 m/s, the fluidization air velocity of a low-speed area is 1.5-2.0 m/s, the temperature of the dense-phase area at the lower part is 650-780 DEG C, and the material circulation ratio is below 10. The invention is suitable for the biomass circulating fluidized bed boiler for an electric power plant.

A composite seam system including a narrow weld bead joining two panels of fabric and a seam tape applied thereon. The applied seam tape comprises a top layer, a reinforcing layer and an adhesive layer melted through the reinforcing layer and connecting the top layer to the fabric panels over the weld bead. The narrow weld bead and the small seam allowance of the fabric panels it joins allows the seam tape to be secured over the weld bead to the fabric panels while lying in a flat plane. The use of a narrow reinforcing layer of woven polyester, nylon or non-woven ultra-fine fibrous material in the seam tape allows the seam tape to be flexible enough to move with the fabric it joins, reducing the incidence of tape edge abrasion.

A turbomachine arranged with a rotor and a stator, including radial positioning means ensuring that the rotor is radially position; and a contactless axial balancing device arranged on at least one bladed wheel for axially balancing the rotor at high speed. The turbomachine includes a thrust bearing distinct from the radial positioning means serving to balance the rotor axially at low speed, and without contact at high speed. In addition, the radial positioning means are hydrostatic bearings, the turbomachine including hydrostatic bearing feed circuits suitable for connecting said bearings to a source of fluid under pressure. As a result, it is possible to obtain operation at high speeds with a very long lifetime.

An under-frame shield, particularly useful with crop sprayers and other implements which traverse fields of plants, includes one or more flexible sheet material shields connected to axle structure and to a central rigid shield by resilient connectors to facilitate suspension system movement in all directions without sacrificing ground clearance. The connection structure and sheet material shields maintain a smooth, seamless protective surface on the under side of the machine to reduce vehicle and crop damage.

A reciprocating axis of the ejector is born in a non-sliding state by permanent magnets on the reciprocating axis and permanent magnets surrounding the reciprocating axis. The reciprocating axis linearly projects out and retracts by the reciprocating components which cause the reciprocating axis to reciprocate by the driving signals from the driver circuit. A slanted surface is provided at the foremost end of the reciprocating axis. When the granular objects to be ejected flow-in continuously, the projecting-out action takes place correspondingly with the leading granular object to be ejected and, after the following granular object(s) to be ejected has been ejected, the retracting action takes place.

A quick-connect coupling for connecting an exchangeable head to a pressing device has balls K1 with a diameter D1, which are radially movably disposed in a ball-holding part on the pressing device. Balls K1 being held radially fixed in a groove on the head with a depth N1 by a locking ring in the connected state. The head has a further peripheral groove with a depth N2. The further groove is designed to hold part of further balls K2 with a diameter D2, wherein the balls K2 are likewise disposed in a radially movable manner in the ball-holding part and wherein the diameter D2 is greater than the diameter D1. The diameter D1 is the same or smaller than the difference between the diameter D2 and the groove depth N2.

The invention relates to a washing machine and a washing method. The washing machine comprises a washing drum, a plurality of polymer plastic strips used for washing clothes are radially arranged on a central shaft in the washing drum or on the wall of the washing drum. The radially arranged polymer plastic strips are used for stirring the clothes, and dirt on the clothes and in washing water is washed off by contacting of the polymer plastic strips with the clothes, so that washing of the clothes is completed. Compared with a common washing machine, the washing machine has the advantages that the washing machine is simple in structure, washing process is simplified, and material cost and manufacture cost of the washing machine are lowered greatly. Additionally, when the washing machine is used for washing, contact area of polymer washing media with the clothes is increased, adsorption capacity to the dirt is improved, and the wear degree of the clothes is much lower.

An enhanced reaming apparatus and method are disclosed. A reaming assembly may have a motor and a pump that provide linear force, torsional force, and pressurized drilling fluid to a reamer to cause the reamer to enlarge the bore of a pilot hole. The reamer may have a body and a plurality of blade assemblies that cooperate to define two substantially symmetrical, oppositely oriented reaming sections. Each blade assembly may have an inner blade attached to the body and an outer blade extending outward from the body. Hard cutting elements may be used in place of the outer blade. The blade assemblies may be field-replaced, or the orientation of the reamer may be reversed to enhance the life of the reamer. The reamer has jets and circulation openings that release the drilling fluid into the bore to facilitate penetration and remove cuttings.

The invention discloses a numerical control precision micro-fine super-long deep hole drilling machine which comprises a workbench, a master control cabinet, a linear motor and a servo motor. An output shaft of the servo motor is provided with a drilling bit. The linear motor comprises a primary part installed on the master control cabinet and a secondary part where the servo motor is installed. The secondary part drives the servo motor to move so as to enable the drilling bit to stretch out or retract back above the workbench. The workbench comprises a lifting base and a workbench top arranged on the lifting base. A clamp for fixing a workpiece is installed on the workbench top. According to the numerical control precision micro-fine super-long deep hole drilling machine, the linear motor is used as a feeding power source of the drilling bit, intermediate transmission links such as a gear, a worm gear pair, a belt, a lead screw pair, a coupler and a clutch which are needed in an existing transmission chain from a motor used as a power source to a working component are abandoned, and rotational inertia, elastic deformation, a backlash, motion hysteresis, friction, vibration, noise and abrasion of the intermediate transmission links are avoided; the numerical control precision micro-fine super-long deep hole drilling machine is high in degree of automation, easy to operate, high in control precision, stable in motion, low in noise, long in service life, safe and reliable.

In a method to test a brake of a robot that has a number of axes, an actuator associated with one of the axes, a brake associated with this axis that is set up to at least reduce a movement of this axis, and a torque sensor associated with this axis, which determines the torque acting on this axis. The brake is activated, the torque acting on the axis is determined by the torque sensor given an activated brake, and the functional capability of the brake is assessed in a processor based on an evaluation of the torque determined by the torque sensor.

A linear ultrasonic motor of sandwich transducer type with double driving- foot is prepared as firm-connecting longitudinal-flexural vibration piezoelectric ceramic wafer and thin copper plate with big end of end cover and FM variable amplitude rod, arranging two flexural piezoelectric ceramic wafers at vibration wave loop of flexural vibration for setting polarization directions of flexural and longitudinal vibration piezoelectric ceramic wafers, setting length of FM variable-amplitude rod to be 1/2 of longitudinal vibration wavelength and setting said driving foot at flexural vibration wave loop most near to FM variable-amplitude rod.

A semi-trailer leg loading nut includes a screwed hole provided on a nut column and connecting two ends of the nut. Said nut is a two-layered structure formed of a top layer and an under layer or a three-layered structure formed of a top layer, an intermediate layer and an under layer. The outer outline of at least two layers of the nut is a square with the same cutting angle. The side length of the two layers of squares is equal. The outer outline projection of the two layers of squares overlap with each other along the column axis direction. The outer outline projection of the other layer is within the overlapped projection of the two layers along the column axis direction. A funneled oil cup or an oil groove is provided on the top layer of the nut and communicates with the screwed hole. A bottom of the under layer of the nut is plane and is pressed on a loading plate in a quadrate pipe to transfer load.

A supply system for supplying in a contact-free manner electrical energy and data signals to a subscriber module, including a support member, a supply bar mounted on the support member, which supply bar supports primary energy and data interfaces, and at least one bus subscriber module mounted on the support member, which bus subscriber module includes secondary energy and data interfaces arranged adjacent and spaced from the primary energy and data interfaces, respectively, whereby electrical energy and data signals supplied to the primary interfaces are transmitted in a contact-free manner to the secondary interfaces, respectively. Preferably the support member is a mounting rail having an inverted top-hat configuration, with the supply bar being mounted longitudinally in the space defined by the horizontal bottom and vertical side walls of the mounting rail.

The invention discloses a shearing mechanism of a resin-based fiber placement system, which is applied to the field of fiber placement manufacturing of resin-based composite material members. The shearing mechanism mainly comprises the following elements: a bevel-connection blade, a knife handle block, a cylinder frame, a chopping board, a chopping board gap and a device driving element cylinder. The bevel-connection blade is connected with the knife handle block which is connected with a cylinder rod, the cylinder is arranged on the cylinder frame, and finally, the whole shearing mechanism is integrated into a fiber placement head of the fiber placement system through a mounting hole. In fiber placement process, a fiber prepreg tape is conveyed to enter the chopping board, the gas is introduced into the cylinder, the knife handle block and the bevel-connection blade fast move downwards through a via hole in the cylinder frame under the driving of the cylinder rod, thereby further cutting the fiber prepreg tape placed on the chopping board by the bevel-connection blade.

A movable hand/wrist support for use with a computer mouse is comprised of a flat and constant thickness sheet of material with an aperture there through. Aperture can be configured to be used with a mouse of any size or shape. Aperture may be configured to entirely surround a mouse so that it rests loosely within the aperture or it may be sized merely to allow the optical communication device of a mouse affixed to a top surface of movable support to communicate with an underlying surface. An secondary layer on which a mouse can rest loosely or be affixed can be affixed to a bottom surface of the sheet of material. Movable support may also include a forearm protector. Various layers may be affixed onto the sheet of material to provide additional comfort and support to the user. The hand/wrist support may be provided as a kit.

The invention relates to a method for producing a borehole in the soil, in which a drill pipe and a conveyor screw arranged inside the drill pipe are set into rotation and introduced into the soil, and in which outcropping soil material is loosened by means of at least one main cutting edge, which is positioned axially in front of the conveyor screw, and is conveyed by means of the conveyor screw in the inside of the drill pipe. In accordance with the invention provision is made for the main cutting edge to be arranged on the drill pipe and to be rotated therewith. The invention further relates to a device for producing a borehole in the soil which can be employed in the method according to the invention.

A product-lubricated multiphase pump for pumping a multiphase mixture containing hydrocarbon includes a separation system and a supply system. To achieve a good cooling and lubrication of pump elements without a lot of operating media and operating medium circuits, the separation system has a first separation stage for at least partly separating at least a portion of the multiphase mixture into a plurality of phase-enriched components and the supply system supplies a liquid-enriched liquid component as lubricant to a pump element to be lubricated.