102results about How to "Increase contact length" patented technology

The object of the invention is a method for modernizing an elevator, and a traction sheave elevator, which elevator comprises at least an elevator car (1) and a traction sheave (4) that moves the elevator car (1) by means of elevator ropes (3), the rim of which traction sheave comprises one or more rope grooves (8). In connection with modernization a traction sheave is installed as the traction sheave (4) of the elevator, the rope grooves (9) of which traction sheave (4) comprise a material, the frictive traction achieved by which is greater than the frictive traction between the parent material of the metallic traction sheave and the elevator ropes (3).

A snow board, the camber of the side cut of which is accentuated, including a bottom surface (7) with a forward contact line (LCAV), which is a forward limit of the contact zone of the bottom surface (7) on a horizontal planar surface (PH), the board (1) being placed on the horizontal planar surface (PH), and a shovel (2), which is a forward part of the board (1) that is curved upward in order to overcome obstacles, the shovel (2) having a width of the shoulder of the ski line (LbV), defined as being a line on the bottom surface (7) in the shovel zone (2) at the location where its width (bV) is at a maximum, wherein the height (hAV) of the width of the shoulder of the ski line (LbV), measured between said bottom surface (7) and said horizontal planar surface (PH), is about 5 mm and to 15 mm.

The invention discloses a jack of a high-elasticity pawl spring type, comprising a jacket (1), a pawl spring (2) and a jack. The pawl spring (2) is assembled and arranged on the excircle of the jack (3) which is provided with steps for realizing the axial limitation of the pawl spring (2), the pawl spring (2) is a rotary spare part provided with a plurality of elastic contact sheets, the end parts of the plurality of elastic contact sheets are folded into an incircle to form an elastic structure which can be strutted and have closing force, the jacket (1) is sleeved on the peripheries of the pawl spring (2) and the jack (3) so as to fix the pawl spring (2) in the jack (3), a guiding part in arc bending is arranged at the end part of each elastic contact sheet, and the jacket (1) and the jack (3) are in interference fit and compression joint to reliably fix the pawl spring (2) in the jack (3). The invention has a simple structure, high contact reliability, long contact length, small plugging force, overstress deformation resistance and favorable guidance.

The invention discloses a contact assembly of an isolating switch, comprising a main contact (1) and an involutory contact (2), wherein the main contact (1) comprises an electric conduction base (3),a plurality of sensing fingers (6) and a spring component (4), wherein the electric conduction base (3) is provided with an inclined electric conduction contact surface (31), and the plurality of sensing fingers (6) are respectively connected with the spring component (4) so as to lead the rear ends of the sensing fingers (6) to be contacted with the electric conduction contact surface (31) of theelectric conduction base (3) in a conductive way under the action of the spring component (4). The contact assembly is characterized in that the rear ends of the sensing fingers (6) are straight. Asthe rear ends of the sensing fingers are set to be straight structure, the contact wire length between the rear ends of the sensing fingers and the electric conduction contact surface of the electricconduction base can be prolonged, and the self-cleaning function for a rear contact can be better realized.

The invention discloses a lithium battery. The lithium battery is mainly characterized in that the lithium battery adopts a battery cover plate and an insulating piece, and the middle part of the battery cover plate is raised to form a lug boss. The battery cover plate which adopts the above structure can strengthen the axial supporting for a pole column, so as to prevent the sealing effect of the battery from being affected due to that the pole column moves in the radial direction to cause a clearance between the battery cover plate and the pole column. As the insulating piece in the form of the lug boss is adopted and the function of a sealant is matched, the sealing effect between the pole column and the battery cover plate can be ensured no matter clearance fit or interference fit is carried out between the pole column and the insulating piece.

The invention relates an adjustable submarine agitator installation device, and belongs to the technical field of water treatment. The adjustable submarine agitator installation device comprises a perpendicular guide rod, a groove-shaped slide sleeve at the tail portion of a submarine agitator, and a hoisting hoop. A hoisting rack is fixedly installed at the upper portion of the guide rod. A hanging lug for hanging a hoisting chain is arranged on the top of the guide rod. The groove-shaped slide sleeve is provided with a left guide plate, a right guide plate, an upper pulley and a lower pulley, wherein the upper pulley is installed between the upper side of the left guide plate and the upper side of the right guide plate, and the lower pulley is installed between the lower side of the left guide plate and the lower side of the right guide plate. The upper sides and the lower sides of the left guide plate and the right guide plate are each provided with at least two axle holes distributed in a spaced mode. When the upper pulley and the lower pulley constrain the perpendicular guide rod from the different sides respectively, the submarine agitator is located at the inclined position in the perpendicular direction and the angular direction. By adjusting the inclination degrees in the perpendicular direction and the angular direction, the adjustment range is expanded to a three-dimensional conical area from an existing two-dimensional horizontal fan-shaped area, and therefore the optimal stirring fluid state can be obtained, stirring dead corners in a pond are reduced, and the stirring efficiency of the agitator is remarkably improved.

The invention belongs to the field of a tracked robot and particularly relates to a six-rod self-adaptive tracked robot. The six-rod self-adaptive tracked robot comprises tracks, synchronous pulleys, a vehicle body and a driving motor at the middle part of the vehicle body, wherein each track is supported by two six-rod linkage mechanisms; each six-rod linkage mechanism is formed by a frame, a front lower arm, a front upper arm, a main arm, a rear arm and a big arm; the two six-rod linkage mechanisms are fixedly connected by brackets; a spring set is arranged between the bracket for fixing two big arms and the bracket for fixing two frames; and preferably, the six-rod self-adaptive tracked robot also comprises a tail wheel. The robot disclosed by the invention has strong stability and good obstacle crossing ability, is simple to control and can cross obstacles by the structure without obstacle crossing driving equipment; and meanwhile, only the frames are fixedly connected with the vehicle body, so that the six-rod self-adaptive tracked robot can obtain a better damping effect.

A land grid array connector is formed by attaching a reinforcing member to a frame and coating the reinforcing member with an elastomeric compound to form a reinforced, flexible body portion of the connector. Conductive wires are inserted in pairs in an array in the fabric extent. Free ends of the wires extend past the elastomeric compound to provide contacts of the connector. The pairs of wires provide redundancy for the contacts to ensure a reliable connection.

The invention discloses a small distortion large vision field stereo endoscope object lens structure. The small distortion large vision field stereo endoscope object lens structure comprises a direct vision endoscope and a strabismus endoscope, wherein the direct vision endoscope sequentially comprises protection glass, a first negative lens, a second negative lens, a parallel flat board, a flat convex lens and a subsequent glued lens group along a light spreading direction, and the strabismus endoscope sequentially comprises protection glass, a first negative lens, a second negative lens, a parallel flat board, a turning prism, a flat convex lens and a subsequent glued lens group along the light spreading direction. The small distortion large vision field stereo endoscope object lens structure has an ingenious structure, the two negative lenses are in front of a diaphragm, the first negative lens is a flat concave negative lens, the second negative lens is a convex concave negative lens, the two negative lenses are organically combined, system distortion can be corrected through optimization design, so large vision field small distortion endoscope optics systems can be designed out, the first negative lens and the second negative lens are respectively glued to the parallel flat board, the technology is good, positioning precision is high, the sealing technology is improved, and assembly and adjustment cost is reduced.

A socket for a high-current plug-in connection is provided, which includes a contact sleeve and a hollow cylindrical contacting system. The contacting system includes a plurality of elongated contact lamellae, is situated in an inner area of the contact sleeve, and is supported with at least a portion of its outer wall on the inner wall. The contact lamellae extend between a first collar and a second collar of the contacting system. The socket includes a contact lamella, in an area between the first collar and second collar, having an arm, via which the contact lamella is additionally connected to a collar of the contacting system in a supporting manner.

A land grid array connector is formed by attaching a reinforcing member to a frame and coating the reinforcing member with an elastomeric compound to form a reinforced, flexible body portion of the connector. Conductive wires are inserted in pairs in an array in the fabric extent. Free ends of the wires extend past the elastomeric compound to provide contacts of the connector. The pairs of wires provide redundancy for the contacts to ensure a reliable connection.

The invention provides a foam maker which effectively generates foaming elements to produce friction slice shaped foam blocks and can rapidly and conveniently perform coating activities. The foam maker comprises a foam making container (1) in a foam generating part (4), a stirring body (2) generated by the foam generating elements, a support (3) of a stirring gesture supporting the stirring body (2). The stirring body (2) comprises a brush (20) containing the foaming elements, a housing (21) acting as a handle and supporting the brush (20) and a driving structure to drive the housing and the brush. The stirring body can be detached and installed according to the foam container. The brush (20) comprises a base (60) supported by the main housing (21) and a brush beam (61) installed on the brush (60). The front end of the brush beam (61) is provided with a retaining convex part (78) to maintain the foaming elements.

A pneumatic radial tire for a passenger vehicle has a ratio W / L where W is a cross-sectional width and L is an outer diameter. The tire also has a belt-reinforcing layer having a high rigidity and disposed between a belt and a tread.

The invention provides a method for chamfering a wafer, an apparatus for chamfering a wafer, and a jig for adjusting the angle of a grindstone. In the method for chamfering a wafer by using two groove-free grindstones, the time for reshaping (finishing) the groove-free grindstones is reduced. In addition, the contact length between the groove-free grindstones and a wafer is increased, and the time for hole shrinkage machining of the wafter and the time for machining the wafter into a wafer having a desired cross section profile are shortened. The method for chamfering a wafer includes loading a wafer (1) on a rotary bench in a centering manner and making the wafer rotate to enable two groove-free grindstones (3, 3) machining the rotary wafer to contact with the periphery (1a) of the wafer so as to chamfer the diameter or the cross section profile of the wafer (1). The method is characterized in that the above two groove-free grindstones (3, 3) are configured in a way that central lines (L, L) of the grindstones along the width are close to the side of the rotary axis (S) of the wafer (1) placed on the rotary bench, and are in contact with the wafer (1).

This invention is a means for interconnecting a Flexible Printed Circuit (FPC) or Flat Flexible Cable (FFC) with a Printed Circuit Board (PCB) using a Zero Insertion Force (ZIF) style interconnection system. It features a high reliability contact structure providing a Normally Closed (NC) contact configuration which is always engaged unless deactivated by means of a movable actuator.

The invention relates to a packer rubber barrel, in particular to a spiral packer rubber barrel with a steel skeleton. The rubber barrel comprises a rubber barrel body; the rubber barrel body is of a cylinder shape; a spiral thread is formed on the rubber barrel body; a spiral spring is coated in the spiral thread of the rubber barrel body. The rubber barrel is simple in structure and high in practicality; by the spiral spring coated in the rubber barrel body, an axial pressure can be uniformly transferred to the rubber barrel body under the action of a pressure; moreover, axial deflection of the spiral spring is consistent with that of the rubber barrel body, so that the rubber barrel body is uniformly stressed and bending and deformation of the middle position of the rubber barrel body are avoided, thereby increasing a contact length of the rubber barrel body and a well wall, increasing a sealing area and improving stability; the phenomenon of shoulder protrusion is reduced. Meanwhile, the spiral spring stores energy when being compressed, and when the rubber barrel is unsealed, the spiral spring releases energy to enable the rubber barrel to be rapidly recovered to the original state.

The invention discloses an assembled form-removal-free steel bar truss floor support plate. Each floor unit comprises a concrete bottom plate, a steel bar truss and a connecting piece, wherein the steel bar truss is connected with one surface of the concrete bottom plate through the connecting piece, a decorative layer is arranged on the other surface of the concrete bottom plate, and the end parts of the decorative layers of the adjacent floor units are staggered with the end parts of the concrete bottom plates. The concrete bottom plates are adopted as formworks for pouring concrete during construction, and do not need to be removed after construction is completed, so that the construction period is shortened, and the construction cost is reduced; and meanwhile, the mechanical property of the concrete bottom plates is good, the concrete bottom plates can be used as a part of a floor structure, and are stressed cooperatively with concrete of an upper cast-in-place structure layer, so that the thickness of a floor plate can be reduced, the use amount of upper cast-in-place concrete and truss steel bars is reduced, and the floor clearance is increased. The end parts of the decorative layers of the adjacent floor units are staggered with the end parts of the concrete bottom plates, so that the decorative layers of the adjacent plate ends can be overlapped and meshed with the concrete bottom plates when the floor support plates are laid in the construction stage, and slurry leakage is effectively avoided.

The invention discloses a portable cardiovascular surgery cannula propeller for the surgical department. The propeller comprises a holding tube and a propelling tube; the propelling tube is located atthe left end of the holding tube; a same cannula body is inserted into inner sides of the holding tube and the propelling tube in a connected manner; a U-shaped limiting rod is fixed to each of the upper side and the lower side of the holding tube; a transverse insertion rod is movably inserted into the left end of each U-shaped limiting rod in a connected manner; the left end of each insertion rod is fixed to the propelling tube; each U-shaped limiting rod is provided with a locking piece for locking the corresponding insertion rod; the left end of the holding tube is rotatably provided withan internal gear ring in a sleeved manner; and the inner side of the internal gear ring is engaged with a plurality of driven gears. The propeller can automatically propel the cannula body, and has agood use effect; while the distance between the holding tube and the propelling tube can be adjusted as needed, so that the contact length between the propeller and the cannula body is larger, and propelling is more stable; and the whole propeller is small in size, convenient to carry and flexible and convenient to use.

The invention discloses a stalk feeding device, and belongs to the technical field of corn harvester. The stalk feeding device includes a housing, a front upper feeding roller, a front lower feeding roller, a back upper feeding roller, and a back lower feeding roller; the front lower feeding roller and the back lower feeding roller are rotatably arranged on two side walls of the housing respectively; a first intermediate shaft is arranged on a side wall of the housing, and the first intermediate shaft is hinged to a swinging arm; one end of the swinging arm is rotatably connected to an extension end of the back upper feeding roller, and a first elastic tensioning device is arranged between the other end of the swinging arm and the side wall of the housing; extension ends of the front upper feeding roller and the back upper feeding roller are rotatably connected through a connection rod; and a second elastic tensioning device is arranged between the connection rod and the side wall of the housing. The stalk feeding device can ensure compacting and order even feeding of stalks, can improve the cutting quality, can perform floating adjustment according to the feeding amount of the stalks, can avoid mutual interference during compacting and conveying, can efficiently and reliably compact the stalks.

The invention provides an intermediate shaft assembly, a gearbox, a vehicle and an intermediate shaft assembly assembling method. The intermediate shaft assembly comprises an intermediate shaft body and at least one first transmission gear. According to the intermediate shaft assembly with the structure, the tooth alignment precision of gears on the same duplicate gear or multi-duplicate gear can be effectively ensured; the total axial length of the duplicate gear or the multi-duplicate gear is larger than that of the single gear, the contact area of the first transmission gear and the intermediate shaft body is increased, the first transmission gear can be effectively prevented from rotating relative to the intermediate shaft body without drilling pin holes and pins, the tooth alignment precision of all gears on the intermediate shaft is guaranteed, and the intermediate shaft assembly is easy to machine and assemble and low in cost. And the processing efficiency of the intermediate shaft assembly can be effectively improved. In addition, after the intermediate shaft assembly is assembled, no pin is arranged between the first transmission gear and the intermediate shaft body, and when the first transmission gear needs to be disassembled, the first transmission gear can be pressed out of the intermediate shaft body through a large-tonnage pressing machine, so that disassembly of the first transmission gear is achieved.

The invention discloses a rope driving mechanism and a frame thereof and further relates to engineering machinery comprising the rope driving mechanism. The frame of the rope driving mechanism comprises a support, a first rotating wheel, a second rotating wheel and a third rotating wheel, the first rotating wheel and the second rotating wheel are respectively mounted on the support, the peripheries of the first rotating wheel and the second rotating wheel are respectively provided with a rope groove, the third rotating wheel is rotatably mounted on the support, the periphery of the third rotating wheel is also provided with a rope groove, the third rotating wheel and the second rotating wheel can rotate in two opposite directions, and the rotation axis of the third rotating wheel is overlapped with that of the second rotating wheel. Therefore, both a rope wrapping angle formed on the first rotating wheel and a rope wrapping angle formed on the second rotating wheel can be correspondingly increased. Furthermore, the contact length between a rope and each rotating wheel can be ensured, friction force between the rope and each rotating wheel is increased, slip of the rope is decreased, the reliability of the rope driving mechanism is improved, and abrasion of the rope is decelerated.

The invention belongs to the technical field of vehicle detections, more particularly, to a special tool for detecting the thickness of a bendable friction block. The special tool comprises a ruler rod and ruler sleeve. The ruler sleeve is capable of being arranged on the ruler rod in a rotation and sliding manner. The length of the ruler sleeve is smaller than that of the ruler rod. The two ends of the ruler rod are respectively provided with a pressing and leaning section and a data reading section. The data reading section is provided with scales in the axial direction. The outer circumferential surface of the ruler sleeve close to the pressing and leaning section is fixedly provided with a connection rod; the connection rod is located in the radial direction of the ruler sleeve. The connection rod is articulated with a pressing head; and the articulation center line is parallel with the central shaft of the ruler sleeve. The top wall of the pressing head is closely attached with the bottom wall of the connection rod; the difference between the lengths of the ruler rod and the ruler sleeve is equal to the measurement range of the scale. The zero scale value of the scale is what is obtained when the top wall of the pressing head is aligned with the lower end wall of the pressing and leaning section. The special tool is advantageous in the following aspects. It can conveniently penetrate the clearance between the wheel hubs. It has a long contact length which allows it to be conveniently in contact with a friction block and makes it applied more widely. The tool is capable of measuring precisely and accurately under the condition that the brake disc is not dismantled. Convenient to use, the tool has a simple structure and can be manufactured conveniently.

The invention relates to the technical field of silicon wafer production, in particular to a cutting method for a solar-grade silicon wafer. The method comprises the following steps: S1, electroplating the surface of the silicon wafer with a layer of metal film by means of electroplating; S2, placing the silicon wafer electroplated in S1 into linear cutting equipment and cutting the silicon waferinto slices, and during linear cutting, taking the silicon wafer as an anode, taking a carbon rod as a cathode, taking an electroplating liquid as a cutting liquid, and cutting while electroplating; and S3, placing the silicon wafer cut in S2 into an acid pickling tank, and cleaning away the metal film on the surface of the silicon wafer. According to the method, the surface of the silicon wafer to be cut is plated with the layer of metal film, so that the generation of edge notches of the silicon wafer can be reduced.

The invention discloses a metal magnetic pump plane bearing structure. The structure comprises a bearing box, a controller and a magnetic pump body, the controller is arranged on one side of the magnetic pump body, a motor is arranged on one side of the controller, and an alarm is arranged at the upper end of the motor; a rear bearing gland is arranged on one side of the alarm, and the bearing boxis arranged on one side of the rear bearing gland; a plurality of plane bearings are arranged in the bearing box, a driving shaft is arranged on the inner sides of the plane bearings, and the drivingshaft is connected with the motor; a front bearing gland is arranged on one side of the driving shaft, and an outer magnetic rotor is arranged on one side of the front bearing gland; the outer magnetic rotor is connected with the driving shaft, an isolation sleeve is arranged on one side of the outer magnetic rotor, and a heat dissipation pipe is arranged in the isolation sleeve. The plane bearings are arranged in the bearing box, so that the contact length is increased, the bearings can obtain the high-load capacity and high rigidity in a small space, the edge stress can be reduced, and theservice life is prolonged.

A land grid array connector is formed by attaching a reinforcing member to a frame and coating the reinforcing member with an elastomeric compound to form a reinforced, flexible body portion of the connector. Conductive wires are inserted in pairs in an array in the fabric extent. Free ends of the wires extend past the elastomeric compound to provide contacts of the connector. The pairs of wires provide redundancy for the contacts to ensure a reliable connection.

The invention relates to an array field effect transistor. The array field effect transistor is characterized by comprising a silicon on insulator (SOI) substrate and well lines, diffusion regions and interconnection regions which are formed on the SOI substrate, wherein the diffusion regions and the interconnection regions are distributed in an array mode and are spaced by the groined well lines; and the conductive type of the well lines is the same as that of the interconnection regions and is opposite to that of the diffusion regions. Compared with the prior art, the invention has the advantages that: an array structure is formed by the diffusion regions and the interconnection regions, so that on the premise of not reducing the contact length of the diffusion regions and interconnection wells, namely the channel width of a metal-oxide-semiconductor field effect transistor (MOSFET), the array field effect transistor greatly increases the contact length of the diffusion regions and the interconnection wells, improves the capacity of conducting electrostatic charges of parasitic diodes between the diffusion regions and the interconnection wells, meets the requirements that the electrostatic charges in the diffusion regions are released when a device works and is suitable for electrostatic protection of the small-size device.

The invention discloses a large-diameter annealing machine for novel materials, which comprises a pre-annealing wheel, a guide wheel 1, a guide wheel 2, a guide wheel 3, an upper annealing wheel, a lower annealing wheel, a constant speed wheel and a wire rod leading out Guide wheel four, wherein, the pre-annealing wheel to the upper annealing wheel is the preheating section, the annealing section is between the upper annealing wheel and the lower annealing wheel, and the cooling section is between the lower annealing wheel and the guide wheel four. It is as follows: the cooling tank in the cooling section is placed horizontally, and the cooling liquid circulation system in the cooling section is provided with a plate heat exchanger, and the number of carbon brushes on the carbon brush wheel used in the large-diameter annealing machine is eight Group. An air cooling system is arranged on the carbon brush wheel. The length of the preheating section is 9800-10000 mm. The length of the cooling section is 2225-2435 mm. The diameters of the upper annealing wheel and the lower annealing wheel are φ440˜φ460 mm.

The invention discloses a penetration type connection reinforcement structure of concrete steel pipes and two or more sleeper blocks. The structure is used for a concrete steel pipe sleeper of a ballastless track, the concrete steel pipe sleeper comprises the sleeper blocks (1) and the concrete steel pipes (2) connected with the sleeper blocks (1) in a transverse direction of the track, the sleeper blocks (1) are formed by pouring concrete, each concrete steel pipe (2) is arranged in manufacturing molds of every two adjacent sleeper blocks (1) by using a hollow steel pipe, every two adjacent sleeper blocks (1) are poured into a whole body in the pouring process, and meanwhile each hollow steel pipe is fully filled with the concrete. The structure is characterized in that open holes are transversely formed in the portions, inserted into the sleeper blocks (1), of the hollow steel pipes, and transverse reinforcing members (3) penetrate through partial or all the open holes in every two hollow steel pipes to reinforce the connection between the concrete steel pipes (2) and the sleeper blocks (1).