34results about How to "Meet clearance requirements" patented technology

The invention provides a composition for restoring the surface of a metallic rubbing pair and a preparation method thereof, and relates to the composition for restoring the surface of the metallic rubbing pair and the preparation method thereof. The invention solves the problem that the restoring film formed by the prior restoring material has limited thickness which can not reach over 0.5 millimeter and can not effectively control the clearance between the metallic rubbing pair. The composition consists of nickelous chloride powder, aluminum powder, nickel powder, ferric oxide powder, silicon dioxide powder, a powder suspending agent, a surface modifier and mineral lubricating oil. The preparation method is to put the nickelous chloride powder, the aluminum powder, the nickel powder, the ferric oxide powder, the silicon dioxide powder, the powder suspending agent, the surface modifier and the mineral lubricating oil in a high-speed viscolizer to be homogenized for 30 to 40 minutes. The composition for restoring the surface of the metallic rubbing pair and the preparation method thereof realize restoring modification to the surface of the metallic rubbing pair of which a restoration layer reaches 1.5 millimeters, and effectively control the clearance between the metallic rubbing pair.

The invention discloses acotton stripping roller support adjusting device of a carding machine, and belongs to the technical field of non-weaving machines. The carding machine comprises a pair of main cotton carding roller support wall plates, main cotton carding rollers, a pair of main side cotton carding roller protecting covers, a working roller and a cotton stripping roller. The cotton stripping roller support adjusting devicecomprises a cotton stripping roller support foot and cotton stripping roller support adjusting screws. The cotton stripping roller support adjusting device is characterized by furthercomprising a cotton stripping roller support foot transition adjusting base, wherein a sliding key is arranged on the top wall of the cotton stripping roller support foot transition adjusting base; adjusting screw bases are arranged at two ends of the sliding key; adjusting screws are arranged on the adjusting screw base; a pair of left and right support foot adjusting grooves are formed in the top wall of the cotton stripping roller support foot transition adjusting base; support foot connecting screws are arranged in match on the adjusting grooves; the bottom side of the cotton stripping roller support foot is placed on the sliding key; the cotton stripping roller support foot transition adjusting base is further provided with a pair of longitudinal wall; longitudinal adjusting grooves are formed in the longitudinal walls respectively; longitudinaladjusting groove screws are arranged in the longitudinal adjusting grooves; the longitudinaladjusting groove screws are connected with the main side cotton carding roller protecting covers; the cotton stripping roller support foot adjusting screws are connected with the bottom wall. According to the cotton stripping roller support adjusting device, the cotton stripping roller support foot can be adjusted leftwards and rightwards, so that the requirement on the gaps among the working rollers can be met.

The invention provides a clearance adjustment device for a differential lock. The clearance adjustment device is used for adjusting the clearance between a sliding engaging sleeve and a fixed engaging sleeve of the differential lock, and comprises a dial, a rotating sleeve and a pointer, wherein the dial is matched with the rotating sleeve; the rotating sleeve can be matched with a rotating shaft driving the sliding engaging sleeve to move and can rotate relative to the dial along with the rotation of the rotating shaft; the pointer is fixed on the rotating sleeve and can rotate relative to the dial along with the rotation of the rotating sleeve; and the rotating angle of the pointer can be displayed on the scale of the dial. The invention further provides a clearance adjustment method for the differential lock and a method for adjusting the clearance of the differential lock by utilizing the clearance adjustment device. Through the technical scheme provided by the invention, the clearance between the sliding engaging sleeve and the fixed engaging sleeve of the differential lock can meet the design requirement and be irrelevant to the stroke error of a cylinder, so that the differential lock can work normally.

The invention discloses a wing body butt joint gap distribution control method based on measured data. The method comprises the steps of collecting the original point cloud data of a wing and a central wing box; preprocessing the original point cloud data of the two; registering the preprocessed point cloud data of the wing and the central wing box with corresponding solid models respectively; selecting key features during butt joint on the two entity models, mapping the key features to the registered point cloud data, and extracting corresponding point cloud features; docking the wing point cloud data and the central wing box point cloud data based on the positioning points; dividing the butt joint surface into a plurality of regions, calculating the gap of the feature points of each region after butt joint, and adjusting the weight of each region according to the gap tolerance so as to control the gap distribution. According to the method, the wing body butt joint gap distribution can be controlled through the characteristic weight according to the actual measurement data, the gap requirement during wing body assembling is met, and therefore the wing body assembling quality and production efficiency are improved, and the technical requirement for wing body butt joint gap distribution control is met.

The invention discloses a regulation mechanism for a pinion and rack steering gear and belongs to the field of automobile steering. The mechanism comprises a pressure block, a regulating bolt and a locking nut, wherein the pressure block is arranged in a shell of the steering gear and is contacted with a rack of the steering gear; the regulating bolt is used for positioning the pressure block in the shell; and the locking nut is used for locking the regulating bolt. The regulation mechanism is characterized in that a mounting rack is arranged on the contact end face of the pressure block and the rack; rollable steel balls are arranged on the mounting rack; and the pressure block is contacted with the rack by the steel balls. According to the invention, by the arrangement of the rolling balls, the original sliding friction between the pressure block and the rack is converted into the rolling friction, so that the axial movement of the rack is reduced, the wear to the pressure block is also reduced, the gap requirement of a pinion and the rack can be met to the greatest extent and the comfort of the steering gear is improved; and the abrasion loss of the pressure block is reduced, the noise generated by the pressure block is correspondingly reduced and the regulation mechanism has an obvious improving effect on the noise level of a finished automobile.

The invention discloses a flue gas turbine adjustable diffusion section structure which comprises an adjustable diffusion section, an air inlet shell, an exhausting volute and a blade shroud, whereinthe adjustable diffusion section is arranged between the air inlet shell and the exhausting volute of a flue gas turbine and is connected with the blade shroud through a first connecting bolt; an adjusting block is arranged on the exhausting volute and is connected with an axial adjusting bolt arranged on the adjustable diffusion section. The flue gas turbine adjustable diffusion section structuresolves the problem about assembling and adjusting difficulty caused by deformation, improves the assembling efficiency and has the characteristics of being simple in structure, convenient to use, lowin manufacturing cost, precise in adjustment and high in reliability.

The invention relates to a method for welding a mirror surface lamella of a bridge support sliding panel assembly. The invention comprises the following technology procedures: baiting, lineation and location, deformation preventing treatment and tungsten electrode gon arc intermittent welding without filling welding wires. The method has simple frock structure, low manufacture cost, convenient use, and good commonality. A mirror surface lamella (1) has tiny welding deflection, and has small clearance with a basal body sliding panel (2), therefore, the welding line is not superelevation, the mirror surface (1) of the lamella is not destroyed, and the rate of finished products of welding and machining is greatly increased. The method is simple, easy to popularize and is applicable to other occasions of lamella welding.

The invention discloses a spinning coagulating bath device, and belongs to the technical field of textile machinery. The spinning coagulating bath device comprises a water tank (1), a water diversion partition plate (8) and a bundling godet assembly (6), wherein the water diversion partition plate (8) is arranged in the water tank (1), so that a containing space in the water tank (1) is divided into a first containing space (17) and a second containing space (14) by the water diversion partition plate (8); the bundling godet assembly (6) is arranged in the first containing space (17); a first through hole (18) is formed in the bottom of the second containing space (14), and the second containing space (14) communicates with the outside through the first through hole (18); and the height of the water diversion partition plate (8) is smaller than the top edge of the water tank (1). According to the spinning coagulating bath device, stable fluid in a coagulating bath body can be guaranteed, and in addition, due to the arrangement of the water diversion partition plate (8), it is guaranteed that the water tank (1) can be completely filled with solvent, and the gap requirement of cooling side blowing is met.

The invention relates to a ceramic grinding head material for a grinder. The ceramic grinding head material for the grinder comprises an outer grinding head material and an inner grinding head material, wherein the outer grinding head material consists of the following components in percentage by weight: 80 to 90 percent of aluminum oxide with purity being more than or equal to 99 percent, 5 to 15 percent of magnesium oxide and 3 to 10 percent of silicon oxide; the inner grinding head material consists of the following components in percentage by weight: 25 to 45 percent of aluminum oxide with purity being more than or equal to 99 percent, 45 to 55 percent of zirconium oxide with purity being more than or equal to 94 percent, 5 to 15 percent of magnesium oxide and 3 to 10 percent of silicon oxide. According to the ceramic grinding head material for the grinder, the defects of an existing ceramic material can be overcome, and the outer grinding head material and the inner grinding head material are made of ceramic.

The present invention designs a rotor slot lining bending tool for wet winding motors. Put the rotor slot lining on the lower mold of the bending tool, fix the slot lining on the lower mold groove by adjusting the positioning plate on the lower mold, and place the rotor Put the copper bar on the rotor slot liner and coincide with the positioning groove on the lower die at the same time, install the upper die handle on the upper die with screws, press the copper bar and the slot liner into the lower die slot at the same time, so that the outer surface of the copper bar One side is fully attached to the slot liner, the upper mold is removed, and the outer slot liner is attached to the copper strip. The shape of the slot liner of the present invention has no wrinkles and deformations, and the copper strips covered with the slot liner can be smoothly loaded into the rotor core slots. The slot shape of the lower mold of the tool is designed according to the shape of the copper strips. After assembly, the slot liner and copper strips can Seamless fit, and finally achieve the effect of protecting the copper strip.

The invention discloses a method for controlling the distribution of wing-body butt joint gaps based on measured data, comprising: collecting original point cloud data of the wing and a central wing box; preprocessing the original point cloud data of the two; The point cloud data of the wing and the central wing box are registered with the corresponding solid models; select the key features when docking on the two solid models, map the key features to the registered point cloud data, and extract the corresponding point cloud Features; dock the wing point cloud data and the central wing box point cloud data based on the positioning points; divide the docking surface into multiple regions, calculate the gap between the feature points of each region after docking, and adjust the gap of each region according to the gap tolerance Weights to control the gap distribution. The invention can control the distribution of the wing-body butt joint gap through the characteristic weight according to the measured data, and meet the gap requirement during the wing-body assembly, thereby improving the assembly quality and production efficiency of the wing-body, and solving the technical demand for the distribution control of the wing-body butt joint gap.

The invention discloses an electric locking device for a subway screen door, which is installed on the door machine guide rail of the subway screen door and includes an electromagnet, a front bracket of a lock body, a rear bracket of the lock body, a pawl dial, and a pawl , pawl rotating shaft, lock hook, lock hook rotating shaft, left lock pin, right lock pin, manual unlocking mechanism, lock in place detection switch, manual unlock detection switch and switch bracket, when the door leaf is automatically unlocked, the electromagnet is powered to do work Linear motion drives the pawl to rotate, the pawl on the pawl shaft rotates synchronously, the pawl disengages the lock hook, and the lock hook rotates under the action of the third torsion spring restoring force, so that the left lock pin and the right lock pin are separated from the lock. The left lock groove and right lock groove of the hook realize the automatic opening of the door leaf; when the door leaf is manually unlocked, the manual lock triggers the manual unlocking mechanism, triggers the manual unlock detection switch, and realizes the manual opening of the door leaf. The invention is convenient for maintenance, high in stability and has good application prospect.

The invention relates to the technical field of installation inspection of asphalt ship cargo tanks, and discloses a mini vehicle for inspecting installation of adjusting pads of asphalt ship cargo tanks. The mini vehicle includes a vehicle body. At that upper part of the vehicle body, a general gauge and a floating stop gauge are arranged. The top height of the general gauge is equal to the minimum value of the height between the bottom plane of the cargo tank and the adjusting pad before the cargo tank falls. The floating stop gauge comprises an upright lifting lever, the lifting lever is lifted upward by a spring, the upper end of the lifting lever is provided with a roller, and the lifting lever is connected with a first metal contact piece. An upper part of that vehicle body is provided with an insulating block. A second metal contact piece is arranged on the insulating block. When the first metal contact piece and the second metal contact piece just contact, the height of the uppermost end of the roller wheel is equal to the maximum value of the height between the bottom plane of the cargo tank and the adjusting pad before the cargo tank falls. The rear part of the vehicle body is connected with a handle through a hinge shaft, and the handle is provided with a battery and a signal lamp. The mini vehicle can improve detection efficiency and has good convenience.

The invention discloses an automatic tape-laying trajectory planning method based on isogeodetic curvature curves, which includes inputting the three-dimensional model of the curved surface of the mold to be laid, the width W of the prepreg tape, and the laying direction of the prepreg tape, and the setting distance is W The starting point of +s, and construct the geodesic line according to the starting point, use the geodesic line as the planned laying track of the prepreg tape, and calculate the laying gap between all adjacent prepreg tapes; The tape laying trajectory is corrected to obtain the final tape laying trajectory. The present invention can plan the tape laying track on the non-developable curved surface, which reduces the cumbersomeness of the tape laying track planning process. Through the above track planning, it can effectively ensure that there will be no coverage between adjacent prepreg tapes after laying, and the corresponding Adjacent prepreg tapes meet clearance requirements.

The invention relates to the technical field of installation and inspection of a marine liquid cargo tank, and discloses a quick inspection tooling and an inspection method for the installation and completion of a cargo tank adjusting pad. The inspection tooling comprises a long handle and a roller sample block mounted on the long handle. The front end of the long handle is provided with a bent section, and the bent section is provided with a rotatable roller sample block. The invention greatly shortens the acceptance time after the installation of the cargo tank adjusting pad is completed, thereby shortening the production cycle.

The present invention relates to a superconducting tape packing assembly and a high-temperature superconducting tape manufacturing device for enclosing optical fibers in the technical field of superconducting preparation devices. The outer surface of the plate is provided with a guiding and limiting groove along the circumferential direction, and the guiding and limiting groove penetrates from one end to the other end of the clustering plate. In the present invention, guide and limit grooves are provided through the outer peripheral surface of the arc-shaped cluster plate, so that the upper and lower metal packaging tapes, superconducting tapes, and measuring optical fiber wire bundles can be changed and positioned through the guide and limit grooves, and the superconducting tape can The direction and position of the wire harness are effectively limited during the material packaging process, the structure is simple, and the packaging effect is outstanding.

The invention relates to a ceramic material for a grinding head. The ceramic material comprises an outer grinding head material and an inner grinding head material, wherein the outer grinding head material is prepared from the following raw materials in percentage by weight: 80-90% of aluminum oxide of which the purity is greater than or equal to 99%, 5-15% of magnesium oxide, 3-10% of silicon oxide and 3-5% of titanium dioxide; and the inner grinding head material is prepared from the following raw materials in percentage by weight: 50-60% of aluminum oxide of which the purity is greater than or equal to 99%, 20-30% of zirconium oxide of which the purity is greater than or equal to 94%, 5-15% of magnesium oxide, 3-10% of silicon oxide and 12-20% of titanium dioxide. Through the ceramic material, the defects of the existing ceramic material can be overcome, the aim that the outer grinding head material and the inner grinding head material are manufactured by ceramics is achieved, the dosage of the zirconium oxide is reduced, and thus the production cost is lowered.

The invention provides a differential lock gap adjustment device, which is used for adjusting the gap between a sliding engagement sleeve and a fixed engagement sleeve of a differential lock, comprising a dial, a rotary sleeve and a pointer; the dial is matched with the rotary sleeve, The rotating sleeve can cooperate with the rotating shaft that drives the sliding engagement sleeve to move, and can rotate relative to the dial with the rotation of the rotating shaft; the pointer is fixed on the rotating sleeve and can move with the rotating sleeve The rotation of the pointer rotates relative to the dial, and the rotation angle of the pointer can be displayed on the scale of the dial. The invention also provides a method for adjusting the differential lock clearance and a method for adjusting the differential lock clearance by using the differential lock clearance adjustment device. Through the technical solution provided by the invention, the gap between the sliding engagement sleeve and the fixed engagement sleeve of the differential lock can be guaranteed to meet the design requirements, regardless of the stroke error of the cylinder, so that the differential lock can work normally.