31results about How to "Reduce slot width" patented technology

A handlebar grip comprises a sleeve, a clamping device and a fastening means. The sleeve made of rigid plastic materials includes a cylindrical body, a front opening end, a rear opening end and at least a vacant area near the rear opening end. The clamping device includes a ring-shaped body, a first extending end and a second extending end. A slot is defined by the first and second extending ends. The clamping device further has at least a protruding disposed on the inner surface of the body. The clamping device is fitted around the rear opening end of the sleeve in such a way that the protruding of the clamping device is wedged into the vacant area of the sleeve. The fastening means includes a threaded bore and a screw. The bore extends through the first and second extending ends of the clamping device along a reference axis. The screw has a shaft with a proximal end and a distal end opposite the proximal end, a head disposed on the proximal end and a threaded region. The screw is adapted for insertion into the bore such that when the screw is advanced, the width of the slot of the clamping device is reduced and in the same time a fastening force is produced radially inwardly toward the rear end of the sleeve so that the sleeve can be firmly mounted on the handlebars.

A system is provided for supporting one or more objects above an operating surface. A central frame extends upwardly from a base and supports one or more attachment members for supporting a variety of objects. In one aspect the objects supported by the system are targets that receive striking forces from external sources. A force measuring device may be associated with the targets. The central frame may be adjustable so that the height of the objects supported by the system may be varied. The base may include stabilizer members that are movable between collapsed and extended positions. Weight of various types may be associated with the stabilizer members to promote stability of the system. Wheels may be associated with the base to enable transport of the system from one location to another.

A disk drive comprising a rotor, to which a disk and a plurality of magnets are fixed, and an open-slot type integrally molded stator disposed about an outer periphery of the magnets, and wherein the stator comprises coils formed by etching metallic films on teeth. The invention may also be applied to a closed-slot type stator. With either type, it is possible to produce an opening that is equal to or smaller than the thickness of a coil wire and cogging torque is minimized.

The invention relates to a self-focusing laser processing device. A container for containing a non-linear medium is fixed between a lens and a workbench by the aid of a clamping mechanism. A laser beam is focused on the surface of the non-linear medium, the laser beam focused by the lens enters the non-linear medium to be transferred to produce self-focusing, and through two times of focusing by the lens and the non-linear medium, the laser beam leaving the container has the extremely small diameter and is linearly spread to the surface of a workpiece. The depth of the non-linear medium in the container, that is, the self-focusing distance L is related to energy of the laser beam and the refractive index of the adopted non-linear medium. A water jet auxiliary device is also provided, and the laser focus point on the surface of the workpiece coincides with the jet injection point center. Impact of water jet on the surface of the workpiece carries away residues and heat removed by laser. Lens focusing and self-focusing are combined, almost half of the diameter of the laser beam is reduced, and the energy density of the laser beam is increased. Laser alignment transfer is realized after self-focusing, the divergence angle is small, longitudinal etching is facilitated, the processing depth is increased, and the etching accuracy and efficiency are guaranteed.

A method to reduce the width of slots or openings in a pipe. The method involve determining the position of the slots relative to the surface of the pipe and determining the width of the slots. A signal is generated corresponding to the determined width and relative position of the slots and the signal is directed to a controller. The controller compares the determined width of the slots with a pre-determined value and identifies slots having widths greater than the pre-determined value. The exterior surface of the pipe adjacent to the slots having determined widths greater than the pre-determined value is treated through causing one or more compression tools to be moved to selectively contact the exterior surface of the pipe adjacent to the identified slots so as to selectively reduce the width of the slots.

The invention relates to a rotary flume test device for making a small debris flow. The test device comprises a rotary flume which is made from a smooth and transparent material, wherein the rotary flume is represented as a sealed cylindrical structure and the rotary flume is of an integrated structure which is formed by splicing a pair of cylinder bodies which are opened in a unidirectional mode; a non-transparent background disc is fixedly arranged at the back of the rotary flume; as for the background disc, one end of a transmission shaft runs through the background disc and is fixedly connected to the axis of the rotary flume and the other end is connected to a rotary power device; and a camera is fixedly arranged at the front side of the rotary flume. The rotary flume test device provided by the invention is small in overall dimensions; the flume is completely made from organic glass, so that the made debris flow is free from a phenomenon of bottom bonding; the rotary flume test device is simple in structure, convenient for making the debris flow and relatively low in cost; the rotary flume is represented as the integrated structure which is made from the transparent and smooth material, and the made debris flow, which is free from the phenomenon of bottom bonding, is closer to a field debris flow; and the camera, which can conduct overall shooting from the front side, has a large shooting viewing angle, and the thickness of the debris flow can be obtained by shooting a head.

An electrical connection system includes an electrical connector electrically connected to a chip module, and an adapter disposed on one side of the electrical connector. The chip module laterally extends to form a conducting portion. Two rows of terminals are disposed in the adapter, and form a slot therebetween for the conducting portion to be inserted therein. When the conducting portion is not inserted in the slot, the width of the slot is greater than the thickness of the conducting portion, so that a zero insertion force is required for insertion of the chip module. After the chip module is inserted in the slot, under the effect of an external force, the width of the slot is reduced to an extent that the terminals urge against the conducting portion, which ensures close electrical connection between the terminals and the chip module.

The present invention relates to a motor stator, in particular, a magnetic pole spaced arrangement combined stator. The magnetic pole spaced arrangement combined stator includes a stator component anda stator insert component; the stator magnetic poles of which the serial numbers are odd numbers, of the stator component and the stator insert component and the stator magnetic poles of which the serial numbers are even numbers, of the stator component and the stator insert component, are arranged alternately; in the winding machining process of a concentrated winding, a large machining operation space is provided between two adjacent stator magnetic poles, and therefore, the slot opening width of stator core wire slots can be reduced under a condition that the winding machining of the concentrated winding is not affected, or closed slots can be adopted as the stator core wire slots, and therefore, a cogging torque can be lowered, a brushless direct-current motor or permanent magnetic synchronous motor can use integer-slot windings, the selection range of the number of slots and the number of poles in the design of the brushless direct-current motor or the permanent magnet synchronous motor can be extended, and the performance of the motor can be improved. The combined stator can realize pole variation and speed variation when applied to an asynchronous motor, so that the asynchronous motor can be facilitated to decrease an additional torque generated by a tooth harmonic magnetic field, and therefore, the efficiency of the motor can be improved.

The light or even lighter heavy load annular bearing radial end play measurement device comprises the core shaft sleeve, press cover, inspection lever, press wheel and bracket, with the press wheel between the bracket and the bearing to be inspected, the axial gap 0.20-0.25 mm of it with the bracket, slot width on the press wheel 3mm+-0.01mm. It is reasonable in design, simple in structure, easy in operation. It can get rid of the locating block through elevating the press wheel and the bracket manufacturing precision, reducing the slot width of the press wheel, which meets the inspection bar width 3+-0.01mm, allowing the gap between the press wheel and the bracket 0.20-0.25mm, realizing bearing axial symmetrical center and loading center automatically in the center. It applies to the light heavy load annular bearing axial end play measurement with width over 6mm.

The present invention relates to a motor stator, in particular, a magnetic pole spaced winding combined stator. The magnetic pole spaced winding combined stator includes a stator component A and a stator component B; the stator magnetic poles of which the serial numbers are odd numbers, of the stator component A and the stator component B and the stator magnetic poles of which the serial numbers are even numbers, of the stator component A and the stator component B, are arranged alternately; in the winding machining process of a concentrated winding, a large machining operation space is provided between two adjacent stator magnetic poles, and therefore, the slot opening width of stator core wire slots can be reduced under a condition that the winding machining of the concentrated winding is not affected, or closed slots can be adopted as the stator core wire slots, and therefore, a cogging torque can be lowered, a brushless direct-current motor or permanent magnetic synchronous motor can use integer-slot windings, the selection range of the number of slots and the number of poles in the design of the brushless direct-current motor or the permanent magnet synchronous motor can be extended, and the performance of the motor can be improved. The combined stator can realize pole variation and speed variation when applied to an asynchronous motor, so that the asynchronous motor can be facilitated to decrease an additional torque generated by a tooth harmonic magnetic field, and therefore, the efficiency of the motor can be improved.

The present invention provides a chain tensioner, which can reduce manufacturing cost with a simple structure, does not restrict the movement of the plunger to the accommodation direction due to excessive chain tension, prevents the sintering of the plunger, and reduces the burden on the chain and Noise, and reduce the amount of backlash, reduce the beating sound when starting, and can be miniaturized, easy to assemble, disassemble and maintain. In the chain tensioning of the ratchet mechanism constituted by a plurality of concave and convex grooves (121) arranged on the outer periphery of the plunger (120) and a C-ring (130) accommodated in the annular groove (115) of the tensioner main body (110) In the device (100), the two side walls of the annular groove (115) are formed as inclined surfaces with different angles.

The invention relates a sash window. It includes the characters of arranging the top ends of railway parts of a bottom frame and the top surfaces of gap components installed between the railway parts at the about same height, able to make the top surface of the bottom frame be a plane, thus able to be made into a sash window suitable for obstacle-free type, and arranging about horizontal top surface part on the gap components so as to be able to reduce the widths of the grooves formed between the railway parts, thus improving the plane sense; besides, taking down the gap components to enlarges the gaps between the window sash pulley guide parts, able to clean between the railway parts without taking them down, and unnecessary to care about the falloff of the moving window as cleaning, able to be secure to make cleaning, and thus able to provide a sash window applied to an obstacle-free window and able to prevent the moving window falling off as cleaning and able to smoothly close and open the moving window.

The invention discloses a micro-trenching method for communication transmission. The method includes: a, performing engineering surveying, in other words, setting a working area by utilizing a ground penetrating radar for exploration on the basis of a planning drawing of the area; b, in the set working area, using a pavement trenching machine for trenching the pavement; c, laying a micro tube or bundling tube in a trench, and sealing the micro tube or bundling tube till an optical cable is placed; d, backfilling the trench paved with the micro tube or bundling tube; e, restoring the pavement of the trench over the backfilled earth with asphalt; f, laying a fiber unit or micro cable in the micro tube or bundling tube laid in the trench via an air blower. By a minimally invasive mode of a road, trenching width is reduced, construction period is reduced, the construction mode is improved, road occupation area of construction is reduced, and accordingly the purposes of lowering cost and increasing construction efficiency are achieved.

A socket for a ball joint having a socket body with an opening and a hollow space, which comprises a concave inside peripheral surface that delimits the hollow space and extends around a longitudinal axis, and which is axially divided into two body halves which merge together in a transition zone, each of which comprises an inside peripheral surface half. A first body half comprises a first inside peripheral surface half which lies on a spherical surface and is closed, in the circumferential direction, and a second body half which comprises the socket opening, at least one slot extending axially and a second inside peripheral surface half which is closed in the circumferential direction, or closed apart from the slot. The second body half is designed such that the second inside peripheral surface half lies outside the spherical surface at least an axial distance away from the transition zone.

The invention relates to a novel permanent magnet synchronous motor stator structure with high thermal conductivity and low pulsation. For a fractional slot concentrated winding permanent magnet synchronous motor stator, M auxiliary slots with the same shape and the same size are formed in each stator tooth, and the auxiliary slots are uniformly distributed on the stator teeth by taking a stator tooth neutral line as a reference; the bottom end of the high-thermal-conductivity thermal conduction rod is connected with the slot bottom, and the shape and the outer radius of the top end are the same as those of the small tooth crowns of the stator with the auxiliary slots, and the thermal conduction rod is inserted to each stator slot. The addition of the auxiliary slots and the thermal conduction rods is equivalent to the increase of the number of the slots, the cogging relation of a prototype machine is changed, the fundamental wave period number of cogging torque is increased, the amplitude of the total cogging torque is reduced, and torque pulsation, vibration noise and loss are effectively reduced. And meanwhile, the thermal conduction rods are inserted into the stator slots to reduce the temperature rise of the fractional-slot concentrated winding and improve the thermal conduction capability of the motor, so that the motor can operate safely and reliably.

The invention discloses a double-sided power generation solar cell. The double-sided power generation solar cell comprises a silicon substrate, and an N emitting electrode, a front antireflection passivation film and a front electrode which are sequentially arranged on the front surface of the silicon substrate from bottom to top, and a back passivation film, a back electric field and a back electrode which are arranged on the back surface of the silicon substrate from top to bottom; the solar cell is a double-sided solar cell; the back electric field is a local aluminum back electric field; through the local aluminum back electric field, a linear open groove is formed after the back passivation film is etched by inorganic etching paste, and then the open groove is covered by high-conductivity aluminum paste; and the solar cell is provided with a BSF layer with the thickness of 2-5 microns. According to the back electric field structure of the solar cell, the thickness of the BSF layercan be increased, the destruction of the silicon substrate is reduced, the aluminum paste consumption is reduced, and therefore the photoelectric conversion rate is improved.

The invention discloses a branch flowerpot and a manufacturing technology thereof. The branch flowerpot comprises a branch body and supports, wherein the branch body is flatly arranged, the supports are used for supporting the branch body, and planting grooves used for planting plants are formed in the upper surface of the branch body; overflow channels are formed in the inner walls of the planting grooves, moisture preservation grooves are formed in the upper surface of the branch body, and are interconnected on a horizontal plane to form a grid shape, the planting grooves are formed in the inner sides of the boundaries of the moisture preservation grooves, and the moisture preservation grooves are communicated with the planting grooves. The manufacturing technology of the branch flowerpot comprises the steps of 1, pruning, wherein residual branches on the branch body are pruned; 2, digging the moisture preservation grooves, wherein a cutter is utilized to dig the gridded moisture preservation grooves in the upper surface of the branch body; 3, digging the planting grooves, wherein the cutter is utilized to dig the planting grooves in the inner sides of the boundaries of an area where the moisture preservation grooves are located; 4, installing the supports, wherein the branch body is erected on the supports. The branch flowerpot and the manufacturing technology thereof have the advantage that the manufacturing process of the branch flowerpot is simple.

The invention discloses a fully automatic high-speed intelligent printing slotting die-cutting machine, which includes a paper feeding device, a printing device, a drying device, a slotting device and a collecting platform arranged in sequence from right to left, and the paper feeding device includes an input roller table device, lifting cylinder, blower and wind cover, the lifting cylinder is fixed at the left end of the frame of the input roller table device, a baffle is fixed on the piston rod of the lifting cylinder, the wind cover is arranged directly above the input roller table device, and the blower The air outlet of the air outlet is connected to the top port of the wind hood through the pipe; the drying device includes the second frame, the power unit, the air outlet pipe, the air heater and the induced draft fan, and the air outlet pipe is rotatably installed on the top of the second frame , one end of the air outlet pipe extends downwards in the second frame and a turntable is fixed on the extension end. The beneficial effects of the invention are: compact structure, improved printing quality, improved corrugated cardboard production efficiency, and the ability to change the distance between two grooves and the size of the groove width.

The motor comprises a stator, in which windings are wound around each of a plurality of stator teeth provided on a stator core, and a rotor, in which a plurality of permanent magnets that exceeds thenumber of stator teeth are disposed at equal intervals around a periphery of a rotor core. In this motor, the stator teeth are arranged into a plurality of stator teeth groups, in which the windings to which the same phase voltage is applied are positioned adjacent to one another, and the windings on adjacent stator teeth in the group are wound in opposite directions. Furthermore, an interpolar angle Theta s(deg) between the stator teeth within each stator teeth group is set to any angle that satisfies the requirement: 360 / P(deg)<=Theta s(deg)<=360 / T(deg) where T is the total number of statorteeth and P is the total number of permanent magnets. A motor is provided, which produces a high level of torque, displays minimal distortion of the induced voltage waveform, and is capable of being optimized in accordance with the required levels of controllability and cogging torque.

The present invention relates to a motor stator, in particular, a magnetic pole spaced arrangement combined stator. The magnetic pole spaced arrangement combined stator includes a stator component anda stator insert component; the stator magnetic poles of which the serial numbers are odd numbers, of the stator component and the stator insert component and the stator magnetic poles of which the serial numbers are even numbers, of the stator component and the stator insert component, are arranged alternately; in the winding machining process of a concentrated winding, a large machining operation space is provided between two adjacent stator magnetic poles, and therefore, the slot opening width of stator core wire slots can be reduced under a condition that the winding machining of the concentrated winding is not affected, or closed slots can be adopted as the stator core wire slots, and therefore, a cogging torque can be lowered, a brushless direct-current motor or permanent magnetic synchronous motor can use integer-slot windings, the selection range of the number of slots and the number of poles in the design of the brushless direct-current motor or the permanent magnet synchronous motor can be extended, and the performance of the motor can be improved. The combined stator can realize pole variation and speed variation when applied to an asynchronous motor, so that the asynchronous motor can be facilitated to decrease an additional torque generated by a tooth harmonic magnetic field, and therefore, the efficiency of the motor can be improved.

The invention relates to an injection device comprising an elongate housing and a cap removably mounted over a forward end of the housing. The cap comprising at least one slot extending forwardly from its rear edge; the at least one slot being configured to engage with an outwardly projecting protrusion on an outer surface of the housing when the cap is mounted on the housing. A rearward portion of the cap includes rearwardly extending engagement features provided on each side of the at least one slot, the engagement features being configured to locate within a cavity in the housing when the cap is mounted on the housing. The cavity is provided with corresponding surfaces which align with the cap engagement features so as to hold the outwardly projecting protrusion within the cut-out.

The present invention relates to a motor stator, in particular, a magnetic pole spaced winding combined stator. The magnetic pole spaced winding combined stator includes a stator component A and a stator component B; the stator magnetic poles of which the serial numbers are odd numbers, of the stator component A and the stator component B and the stator magnetic poles of which the serial numbers are even numbers, of the stator component A and the stator component B, are arranged alternately; in the winding machining process of a concentrated winding, a large machining operation space is provided between two adjacent stator magnetic poles, and therefore, the slot opening width of stator core wire slots can be reduced under a condition that the winding machining of the concentrated winding is not affected, or closed slots can be adopted as the stator core wire slots, and therefore, a cogging torque can be lowered, a brushless direct-current motor or permanent magnetic synchronous motor can use integer-slot windings, the selection range of the number of slots and the number of poles in the design of the brushless direct-current motor or the permanent magnet synchronous motor can be extended, and the performance of the motor can be improved. The combined stator can realize pole variation and speed variation when applied to an asynchronous motor, so that the asynchronous motor can be facilitated to decrease an additional torque generated by a tooth harmonic magnetic field, and therefore, the efficiency of the motor can be improved.

The invention discloses a full-automatic high-speed intelligent printing, slotting and die-cutting machine. The machine comprises a paper feeding device, a printing device, a drying device, a slotting device and a collecting platform which are sequentially arranged from right to left, the paper feeding device comprises an input roller way device, a lifting air cylinder, an air blower and a fan cover, and the lifting air cylinder is fixedly arranged at the left end of a rack of the input roller way device; and a baffle is fixedly arranged on a piston rod of the lifting air cylinder, the fan cover is arranged over the input roller way device, and an air outlet of the air blower is connected with a top end opening of the fan cover through a pipeline. The drying device comprises a second rack, a power unit, an air outlet pipe, an air heater and an induced draft fan, the air outlet pipe is rotationally installed at the top end of the second rack, one end of the air outlet pipe downwards extends into the second rack, and a rotary disc is fixedly arranged at the extending end of the air outlet pipe. The full-automatic high-speed intelligent printing, slotting and die-cutting machine has the beneficial effects that the structure is compact, the printing quality is improved, the corrugated board production efficiency is improved, and the distance between two grooves and the width of the grooves can be changed.

The invention relates to a charging grain structure of a solid rocket engine, and belongs to the technical field of solid rocket engines. Under the condition that a design limiting boundary is constant, a groove bottom structure can be in an isostress-strain state, local stress concentration is prevented from appearing on the groove bottom structure, and the grooving width can be effectively reduced on the premise that integrity of the charging structure is ensured, so that the charge-weight ratio of a charging combustion chamber is improved, and the purpose of improving the overall performance namely the volume energy density of the solid rocket engine is achieved.

A tyre with reduced rolling resistance is provided. The tyre includes four zigzag circumferential grooves (3) and hexagonal blocks (5) divided by the lateral grooves (4) each extending so as to connect between adjacent ones (3,3) of the zigzag circumferential grooves (3). The zigzag circumferential grooves (3) include a pair of center circumferential grooves (6) each having a groove width not morethan 4.0 mm and a pair of shoulder circumferential grooves (7) each having a groove width larger than that of each of the center circumferential grooves (6). A depth (D1) of each of the lateral grooves (4) is smaller than a depth (D0) of each of the zigzag circumferential grooves (3), and a groove bottom (10) of each of the lateral grooves (4) is provided with a first sipe (11).

The invention discloses a car middle-row seat with handrails. The car middle-row seat comprises a seat cushion framework and a backrest framework, and a connecting support (1) is connected to the side of the backrest framework; the handrails are rotationally connected to the connecting support (1), each handrail comprises a first supporting shell (2) and a second supporting shell (4) which form a handrail framework, a limiting base (3) for limiting the rotating stroke of each handrail is arranged between the corresponding first supporting shell (2) and the corresponding second supporting shell (4), a handrail cover (5) is arranged outside each handrail framework, and a rotating pin shaft (6) penetrates each handrail cover (5) and the corresponding handrail framework to be connected into a pin shaft sleeve (7) arranged on the connecting support (1). The car middle-row seat with the handrails is high in man-machine adaptability, and the security and the comfort of a rider are improved; and meanwhile the car middle-row seat further has the beneficial effects of being good in stability, long in service life and the like; and the car middle-row seat further has high applicability.

A method to reduce the width of slots or openings in a pipe. The method involve determining the position of the slots relative to the surface of the pipe and determining the width of the slots. A signal is generated corresponding to the determined width and relative position of the slots and the signal is directed to a controller. The controller compares the determined width of the slots with a pre-determined value and identifies slots having widths greater than the pre-determined value. The exterior surface of the pipe adjacent to the slots having determined widths greater than the pre-determined value is treated through causing one or more compression tools to be moved to selectively contact the exterior surface of the pipe adjacent to the identified slots so as to selectively reduce the width of the slots.