201results about How to "Guaranteed interchangeability" patented technology

The present invention relates to a video receiving apparatus receiving, from a communication channel, video data of three-dimensional video taken using binocular parallax and added information for the video data, or to a video reproducing apparatus reading such from a recording medium. The video receiving apparatus or video reproducing apparatus detects added information indicating a predetermined format for three-dimensionally displaying the video data, and three-dimensionally displays video data that conforms to the predetermined format. The video receiving apparatus uses a data reception unit (151) to receive multiplexed data including video data and added information and uses a data separation unit (152) to extract the video data and its added information. A control unit (153) controls a video conversion unit (155) based on the added information to convert the video data to three-dimensional video that conforms to the predetermined format and display it on a display unit (156).

An apparatus for monitoring battery voltage and temperature includes a host controller and acquisition boards, and every acquisition board for the battery includes a voltage acquisition module, a temperature acquisition module, a host control chip MCU, A / D convertor module, an opto-isolator module, a CAN bus communication module and two external connection ports CN1, CN2. The input end of the AD transformation module is connected with the output end of the voltage acquisition module and the temperature acquisition module, and the output end of the A / D convertor module is connected with the opto-isolator module via a SPI bus, and the I / O port of the SPI bus module in the main control chip MCU is connected with the opto-couple isolation module, and the host control chip MCU is connected with the CAN bus communication module of the host controller via the CAN bus communication module, and the acquisition boards are connected via a socket piece in turn. The present invention is simple in structure, convenient in operation, high in data precision and high in the consistency and interchangeability of each acquisition board. Furthermore, the present invention utilizes opto-isolator module to isolate the high-voltage battery with the host controller circuit, so as to avoid the problem of common mode interference.

The invention relates to an electric locomotive roof assembly and welding tool, which comprises an integral frame, a gantry and a cylinder, wherein the integral frame consists of a reinforcing ribbed plate, a main beam, an edge beam, a bottom plate and a side wall board; the side wall board and the bottom plate form an inclination angle; a sliding track for mounting the gantry is arranged outside the side wall board; the gantry is provided with a movable cylinder fixing frame and is used for eliminating welding gap between an aluminum plate and the frame to guarantee welding quality; and the effect of reducing welding deformation is reduced by forming rigid fixing force for the aluminum plate and the frame. Side wall pressing cantilevers are uniformly distributed outside the edge beam; and the reinforcing ribbed plate is provided with a positioner connecting pipe. The interference between a product and the tool is eliminated in a movable pressing and fixed pressing combined mode, so that all products can be welded on the tool at one time. The working efficiency is increased. All positioning devices are used for quick and accurate positioning. The stability of the tool is effectively guaranteed, and the product quality requirements are met.

The invention discloses an exchangeable crawler wheel of a loading machine, which adopts a middle support base frame, wherein the base frame is formed by welding left and right web plates, a lateral connection plate, a lower connection plate and an outer shaft sleeve of a drive wheel. An inner shaft sleeve of the drive wheel is connected with the outer shaft sleeve of the drive wheel through a pair of conical roller bearings, and a shifting plate is connected to the two ends of the inner shaft sleeve of the drive shaft through bolts; the lower end of the base frame is connected with a support wheel set, a guide wheel set and a tension wheel set, wherein the support wheel set has a three-axis swing structure, so the impact load of the crawler wheel on the pavement is reduced; the guide wheel set and the tension wheel set are connected with the base fame through a clamping type structure; and the support wheel, the guide wheel and the tension wheel adopt a glue coating structure. A crawler belt adopts a gear wheel structure, and aramid fiber cord threads are used in the crawler in place of interior steel wires, so the weight of the crawler belt is effectively reduced, and a heavy crawler wheel product capable of being exchanged with the current tyre is obtained.

The invention relates to a dogging Doppler ultrasonic flow-velocity distribution device, by adopting which the ultrasonic wave sent out from the ultrasonic transducer arranged outside the pipeline is sent on the liquid to be measured in the pipeline to measure the distribution of the flow-velocity of the liquid. The principle of the device is a certain frequency of the ultrasonic wave is reflected by the reflector in the liquid, and due to the Doppler Effect, the frequency is changed according to the flow-velocity. The sound wave propagation wedge of the ultrasonic flow-velocity distribution device is arranged between the ultrasonic transducer and the pipeline. The frequency of the emitted ultrasonic wave is set different from a certain frequency with a wave refraction angle of 90 degrees of the Lamb wave patterns in the pipeline. The frequency is calculated from the angle of incidence of the ultrasonic wave from the wedge into the pipeline, the sound speed in the wedge, the sound speed of the S-wave and P-wave in the pipeline, and the thickness of the pipeline. In such a way, the transmission frequency and the angle of incidence into the pipeline in the ultrasonic flow-velocity distribution device are fully chosen, thus allowing for the high-precision measurement of the fluid flow-velocity or the flow.

The invention discloses a weighing, spring regulating and detecting device for a bogey of a railway locomotive. The device comprises a hydraulic system and a detection system, wherein in the hydraulic system, a mechanical component is provided with a guide rail, a weighing rail and a load beam, the load beam is arranged above the weighing rail, the guide rail is installed at the front side of the weighing rail, the weighing rail can move up and down under the action of the hydraulic system, and the load beam can move up and down under the action of the hydraulic system and can pressurize the bogey through a hydraulic cylinder installed on the load beam; and the detection system comprises multiple wheel load measuring units, each wheel load measuring unit respectively corresponds to the wheel of the bogey, each wheel load measuring unit is provided with a pressure sensor, the wheel load measuring units are arranged below the weighing rail, and the wheel load measuring units can horizontally move along the direction parallel to the weighing rail under the action of the hydraulic system. In the invention, the whole load pressure is implemented on the bogey after the bogey is assembled, and then wheel load detection is carried out, so as to inhibit the axle load transfer in the running process of the locomotive to the fullest extent.

The invention discloses an adsorption jig with a built-in vacuum generator; the adsorption jig comprises a tooling plate, the vacuum generator, a fast connector, a shunt block, first air pipes, L-shaped connectors, hardware and suckers; the vacuum generator is connected with an external air source with stable pressure through the fast connector which is connected with the vacuum generator, and is communicated with the shunt block; at least two first air pipes are connected onto the shunt block; the port of each first air pipe is connected with the L-shaped connector; through holes are arranged in the tooling plate; one end of each through hole is provided with the L-shaped connector and is connected with the shunt block through the first air pipe, and the other end of each through hole is provided with the hardware; the suckers in the same number with the first air pipes are assembled on the hardware; the surface of the tooling plate is provided with a positioning side and at least two positioning columns; the built-in vacuum generator replaces an external vacuum pump to work; and the vacuum generator has a small size and a simple structure, and is low in cost, can be arranged in the tooling plate only by leaving a smaller space in the internal structure of the tooling plate to form a complete integral design, so that not only is the performance excellent but also the appearance is attractive and generous.

The invention discloses a clamp and a method for cutting and welding a radiator. The clamp comprises a base, and support frames and a speed reducer arranged on the base; a rotatable bottom plate is arranged between the left support frame and the right support frame; front and rear bracket plates are respectively arranged at the front and rear ends of the bottom plate; the front and rear bracket plates are provided with positioning holes; a supporting assembly is arranged at the right end of the bottom plate; a positioning block is arranged on the supporting assembly; a fixing component for fixing a hot air flowing passage port of the radiator is arranged on the positioning block; a rotating shaft of the speed reducer passes through the right support frame and then is fixedly connected with the bottom plate; and a crank handle is arranged on the speed reducer. By using the clamp and the cutting and welding method in production, the assembly position of the radiator on the support frames of the clamp is consistent before and after cutting and welding, the interchangeability of a product is ensured, comprehensive errors of the radiator product due to the cutting and welding operations on different stations are avoided, the labor intensity is reduced, and the production efficiency is improved.

The invention discloses a low-noise device for a centrifugal compressor of a turbocharger, aiming at overcoming the defect of serious airflow turbulence after an air guide wheel air incoming re-circulating structure is adopted by a turbocharger with the lowest cost so as to lower noise and improve the efficiency of the compressor. The low-noise device has the following technical scheme that based on the prior art, a space is formed between a shell 4 of an air compressor and an air guide sleeve 3, and a flow guide cover 15 is arranged in the low-noise device so as to form secondary air inlet passages 7 and 14; and arc flow guide treatment is carried out at the turning of the channel of related parts, and the air guide sleeve 3 is provided with 3 grooves or 3-20 circular holes at the radial circumference corresponding to an impeller 1 of the air compressor. The low-noise device can be widely applied to compressors to lower the noise and has wide application prospect.

The invention discloses a welding tool capable of ascending, descending and being overturned. The welding tool is characterized by comprising a base, supporting frames, lifting devices used for ascending and descending of a welding support, rotation devices used for rotating the welding support, and the welding support; the supporting frames are arranged at the two ends of the base, the lifting devices are arranged at the bottoms of the supporting frames, the rotation devices are arranged on the tops of the supporting frames, and the welding support is arranged on the rotation devices. Through the arrangement of the lifting devices and the rotation devices, ascending, descending and rotating can be achieved, and welding lines of different angles can be conveniently welded; the welding tool capable of ascending, descending and being overturned is adopted, accurate relative positions of various aluminum alloy profiles during assembling positioned welding can be guaranteed, meanwhile, welding deformation of workpieces can be prevented or reduced, the welding quality is stabilized, the welding size deviation is reduced, and product interchangeability is guaranteed.

The present invention relates to driller design scheme for petroleum and gas well, and is especially one new design scheme of composite driving driller with reliable performance, compact and flexible structure and low cost. The driller platform includes winch, diesel engine, linking machine, valve assembly, clutch, hydraulic coupler, turntable, driving mechanism, drilling bit, control table, pressure converter, signal transducer, electric pressure gauge, etc. It features the turntable driven with frequency variable motor, the driving mechanism with frequency variable motor connected through the turntable box with the turntable, the drilling bit inside the turntable, the winch driven with a diesel engine, the connection of the winch with the automatic drilling bit feeding mechanism via a gear switching mechanism, etc. The present invention has reliable performance, simple first, flexible control and high interchangeability.

Said invention belongs to welding equipment, especially automatization welding equipment suitable for PWB printed wiring board in surface mounting technology (SMT). It contains an electromagnetic pump type single / double wave crest generator consisting of single side type linear motor primary stator core and winding, magnetism shielding plate, liquid metal container, pump mouth etc, wherein said liquid metal container is T-type structure, longitudinal part of T-type structure having plurality of symmetric longitudinal channel whose one end communicated with pump mouth, another end communicated with container, both sides of liquid metal longitudinal part having two linear motor stator core with winding, electromagnetic pump having two pump mouth, respectively connected with two symmetric pump channels, channel mouth size is less than size of channel body and adopting magnetic wedge fixing winding. Said technology forms electromagnetic pump type single / double wave crest generator with smoothness reliable wave crest.

The invention relates to an efficient descaling method for square billets. The efficient descaling method comprises a descaling ring device selective adaptability method and a descaling nozzle selective adaptability method. According to the efficient descaling method, the problem that the conventional square billet scaling ring is incapable of descaling thoroughly can be solved; meanwhile, the problems that nozzles on two sides idly spray water and the water source is wasted can also be avoided; efficient descaling can be conducted on all different-sized billets. The efficient descaling method is convenient to use, thorough in descaling, energy-saving, environmental-friendly and the like.

The invention discloses a hand-cranking type welding positioner for welding a large rack. The hand-cranking type welding positioner comprises a foundation, a hand-cranking device, a driving device, a front end supporting seat device, a work platform device and a back end supporting seat device, wherein the hand-cranking device, the driving device, the front end supporting seat device, the work platform device and the back supporting seat device are fixed on the foundation; the hand-cranking device comprises a rotating disc, a driving shaft, a driving gear, a hand-cranking device bearing and a hand-cranking handle; the driving device comprises a driven gear, a driving screw, a driving nut, a gear rack, a driving device bearing and an end cover; the front end supporting seat device comprises a big gear, a front end supporting bearing, a driving shaft, a front end cover, a back end cover and a front supporting seat flange plate; and the work platform device comprises a flange plate and a platform welding structure body. The hand-cranking type welding positioner for welding the large rack is simple and practical, is convenient to operate and adjust, is driven by hand-cranking, can freely rotate in the range of minus 90 degrees to 90 degrees and can be self-locked; and with the adoption of the hand-cranking type welding positioner, the welding size precision of the rack is guaranteed, and the interchangeability can be guaranteed; and the depending degree to the technical level of a welding operator is reduced, and requirement functions are achieved with low cost.

The invention provides a rear power takeoff system which comprises a bent axle (1), a bent axle gear (2), an engine body (3), a flywheel shell (4), a flywheel binding head (5), a rear power takeoff bent axle gear (6), a rear power takeoff intermediate gear (7), a rear power takeoff output gear (8), a front box body (9) of a gear chamber, a rear box body (10) of the gear chamber and a rear power takeoff output flange plate (11), wherein the flywheel binding head (5) is arranged on the bent axle (1); the rear power takeoff bent axle gear (6) is arranged on the bent axle (1); the rear power takeoff intermediate gear (7) is arranged on the engine body (3) and is meshed with the rear power takeoff bent axle gear (6); the rear power takeoff output gear (8) is meshed with the rear power takeoff intermediate gear (7); the front box body (9) of a gear chamber is connected with the engine body; the rear box body (10) of the gear chamber is connected with the flywheel shell (4) and covers the rear power takeoff intermediate gear (7) and the rear power takeoff output gear (8); and the rear power takeoff output flange plate (11) is arranged on the rear box body (10) of the gear chamber. The rear power takeoff system provided by the invention has very small change on the original structure of the diesel engine, and transformation cost is low. The invention also provides a diesel engine withthe above rear power takeoff system.

A glass rib unit type glass curtain wall comprises a unit frame and a panel glass. A principal vertical support is supported between the upper and the lower frames of the unit frame. The principal vertical support is connected with the auxiliary vertical support, and the glass rib is fixed in the auxiliary vertical support. The method for preparing the curtain wall comprises the following steps: baiting, manufacturing the sectional material, assembling the frame, installing the glass rib vertical support and auxiliary support, installing the panel glass and installing the glass rib. The invention provides a technique of the unit type glass curtain wall which is provided with a glass rib.

The invention relates to a multi-stage screening machine for aquatic products. The machine comprises a frame (1), a power transmission device (2) and a rolling cage barrel (3), wherein the rolling cage barrel (3) comprises a plurality of cylindrical rollers which are sleeved with one another; each layer of roller comprises a front barrel ring (301), a rear barrel ring (306), more than one middle barrel ring (304), and a grid (303) for connecting the front barrel ring (301), the rear barrel ring (306) and the more than one middle barrel ring (304); the peripheries of the front barrel ring (301), the rear barrel ring (306) and the more than one middle barrel ring (304) are provided with a plurality of staggered adjusting holes (305); and the two ends of the grid (303) are selectively connected with two corresponding adjusting holes (305) in each group of adjusting holes (305) to form different intervals, so that the requirement of screening various aquatic products is met.

The invention provides an external storing device and its housing. The external storing device can improve the interchangeability of small-size external storing devices. A first and a second housings are provided with storage media and one ends of the first and the second housings are provided wiring substrates of a connector for external connection. A first threaded hole for installing the external storing device is disposed at a plurality of parts of the surface of the first housing with respect to the wiring substrate. The second housing is provided with wall parts which respectively protrude towards the internal second housing at the plurality of positions corresponding to the first threaded hole of the first housing, thereby entering space of a threaded component fastened in the first threaded hole is ensured. Hook-shaped components, disposed at at least parts of the plurality of wall parts and at the inner side surface of the second housing are used for clamping the wiring substrate between the hook-shaped components and a supporting component supporting the wiring substrate from the lower side.

The invention discloses an anti-tilting dual protection device of a hanging basket. The anti-tilting dual protection device of the hanging basket is provided with two sets of rope clamping mechanisms,and a safety rope and a working rope penetrate the rope clamping mechanisms correspondingly. A swing arm mechanism is in transmission connection with the two rope clamping mechanisms at the same time. When the anti-tilting dual protection device moves, the swing arm mechanism simultaneously triggers the two rope clamping mechanisms, and the two rope clamping mechanisms synchronously move to clampthe ropes penetrating the rope clamping mechanisms. During running, when protection of any one set of rope locking device loses efficacy, including that a safety lock loses efficacy or a steel wire rope is broken, the protection of the other set of rope locking device is still effective, and the anti-tilting reliability of the hanging basket is greatly improved. An arranged guide wheel and the swing arm mechanism are coaxial, constraint is formed on the horizontal shifting of the working rope, the tilting rotating center of a suspended platform coincides with the rotating center of the swingarm mechanism, and the effects of external factors on the rope locking angle of the safety lock are eliminated. The anti-tilting dual protection device of the hanging basket has the remarkable advantages of being high in rope locking precision, simple in structure, reliable in action and low in cost and is suitable for being widely applied in the double-hanging point hanging basket.

A tower crane standard section rotating tool is characterized by comprising a base frame (1) and a rotating mechanism (2). The rotating mechanism is rotationally connected with the base frame (1) via a long shaft (3) and a short shaft (4) respectively at two ends of the rotating mechanism, and is formed by two end wall plates (5) and connecting columns (6) connected at four corners of the two end wall plates. One of the end wall plates is provided with a fixed main rotating rod positioning shaft (7), the other end wall plate is correspondingly provided with a flexibly positioned main rotating rod tight-propping mechanism (8), and both the end wall plates are provided with support block positioning backup plates. During splicing standard sections by the tower crane standard section rotating tool, on one hand, the tight-propping mechanism is utilized to position and mount a main rotating rod so as to guarantee accuracy and perpendicularity of diagonal lines of the standard sections to the maximum extent; and on the other hand, positioning and welding of supporting blocks can be realized better. Due to improvement of processing accuracy, interchangeability of the standard sections is guaranteed.

The invention relates to a plane layout used for replacing large planes, a preparation method thereof and an SPECT / CT (single photon emission computed tomography / computed tomography) dual-mode biological imaging system using the plane layout as a rotating platform. The plane layout comprises a central datum part and a plurality of cantilevers respectively installed on the central datum part, wherein the central datum part and the cantilevers are respectively provided with installing fitting surfaces fit with each other; a working plane is arranged in front of each cantilever; and the working planes are arranged in a same plane or are respectively arranged in a plurality of planes parallel with each other. The plane layout has extremely high precision, the end face runout of the plane layout with meter-scale radial dimension can not exceed + / -0.002mm and the plane layout has simple production cost, low cost, light weight, high reliability and strong universality, moves stably and is easy to control in start and stop. The corresponding SPECT / CT dual-mode biological imaging system has higher geometric precision, imaging precision and imaging definition.

It is an object to provide an address format that properly controls a recording line density and the number of information-recording layers for an information-recording medium to increase a recording capacity of the information-recording medium such as an optical disc in the range for making it possible to secure a necessary SN ratio. The optical disc is provided with an information-recording layer including concentric circles or spiral-shaped tracks, and has a format for describing track addresses recorded on a track in advance or added to data to be recorded on the information-recording layer. The format includes layer information on the information recording layers and address information on the track addresses. In a first optical disc having a first recording density, the layer information of the first optical disc is described by the first number of bits and the address information of the first optical disc is described by the second number of bits. In a second optical disc having a second recording density that is larger than the first recording density, the layer information of the second optical disc is specified by the number of bits that is less than the first number of bits and the address information of the second optical disc is specified by the number of bits that is more than the second number of bits. The total number of bits of the layer and address information of the second optical disc is equal to the sum of the first and second numbers of bits.

The invention relates to a drilling mould for a flange connection hole at the side of a butterfly valve, mainly comprising a ring-shaped drilling mould body and a drilling jig, wherein the ring-shaped surface of the drilling mould body is evenly distributed with drilling jig connection holes in cooperative connection with the drilling jig; and the concentric circle at one side of the drilling mould body is provided with a step table round spigot matched with the inner hole diameter of the butterfly valve body. The invention brings the beneficial effects of saving the labor and time consuming benchwork lining process and completing the drilling via directly installing the mould, guaranteeing the correct position of each hole and ensuring the interchangeability of the flange connection hole at the side of the butterfly valve. A double-row drilling jig connection hole design is adopted to satisfy the drilling demand of two flange connection holes with different specifications at the side of the butterfly valve, enlarge the using range and save the manufacturing cost.

The invention relates to a machining detection process for a part. The process comprises the following steps of: 1, blanking; 2, determining a dimension chain of the part; 3, roughly turning the material blanked by the step 1 according to the dimension chain of the part, which is determined in the step 2; 4, performing thermal treatment on the roughly-turned material; 5, accurately grinding the dimension chain of the part, which is determined in the step 2; and 6, electroplating a product obtained in the step 5. According to the machining detection process for the part, the qualified rate of the product is high, the machining accuracy is high, and process steps are rational.

The invention discloses a drilling machine capable of simultaneously processing multiple holes. The drilling machine comprises a working table and a plurality of pneumatic power heads arranged around the central position of the working table. The pneumatic power heads are connected with drill bits, a plurality of supports for supporting the pneumatic power heads are installed on the working table, a first supporting frame is arranged at the central position of the working table, a displacement cylinder is arranged on the working table and located in the first supporting frame, and a sliding plate capable of sliding in the length direction of the first supporting frame is installed on a piston rod of the displacement cylinder. The sliding plate is provided with a first clamp and a second clamp, a second supporting frame is installed on the working table and located above the first supporting frame, and a vertically arranged pressing cylinder is installed on the second supporting frame and located above the central position of the working table. The drilling machine shortens the processing cycle of single workpieces, improves working efficiency, guarantees interchangeability of the workpieces and reduces labor intensity of workers.

The invention provides an antenna cover coordination installation device. The antenna cover coordination installation device is a technological device manufactured coordinately by adopting an antennacover sample piece and a product butt joint frame sample piece, the technological device is of an annular hollow structure, and is structurally provided with a quota piece, ear piece holes, butt jointfaces and other structures; and hole positions on the sample pieces are coordinately prepared by taking the ear piece holes as bases, harmony of the hole positions is guaranteed, the appearance and the clearance between the sample pieces at an alignment position are checked, and the technological device can be used after meeting requirements. The antenna cover coordination installation device ismanufactured in the unified bases, so that coordination between the sample pieces is guaranteed; and the antenna cover coordination installation device has the advantages that structure is simple, operation is convenient, difficulty and the workload of repairing and trepanning by workers are reduced, so that coaxiality of an antenna cover and a product is guaranteed, interchangeability of the antenna cover is ensured, and the requirement that the antenna cover is simple and feasible in field maintenance is met.

The invention relates to a diesel engine high-pressure fuel control booster pump. The diesel engine high-pressure fuel control booster pump comprises a shell and is characterized by further comprisinga pressurizing coupling part, an electromagnetic valve assembly and a pressure relief assembly; the pressurization coupling part comprises a booster pump body, a pressurization plunger and a spring;a pressurization plunger cavity and a pressurization cavity which are mutually independent are formed between the pressurization plunger and the booster pump body, and the spring is positioned in thepressurization cavity; a pressure relief passage communicated with the pressurization plunger cavity and an oil return passage communicated with the outside of the booster pump body are arranged in the booster pump body; and the pressure relief passage is in communication with the oil return passage through the electromagnetic valve assembly through controlling the pressure relief assembly, and the pressurization plunger drives the pressurization cavity to realize fuel pressurization due to pressure differential motion. According to the diesel engine high-pressure fuel control booster pump, the fuel pressurization time and the frequency can be accurately controlled, the fuel injection laws of all the working conditions of the diesel engine can be matched, the fuel can be fully combusted, and the pollution can be reduced; the diesel engine high-pressure fuel control booster pump can be suitable for various high-pressure fuel systems with different supercharging ratios, and is compact instructure, good in reliability, flexible in control, fast in response and convenient and rapid to install.

The invention provides a gear shaft back-up bearing cover rotary alignment structure and an alignment method. The alignment structure is characterized in that a bush I and a bush II are pressed into bottom holes of a gear case and a bearing cover in an interference manner, shafts at the two ends of a gear are installed in inner holes of the bush I and the bush II, a spline housing matched with thegear is arranged in the gear, and the other end of the spline housing is matched with a cam shaft; and the bearing cover is assembled to a gear case cover, and the gear case cover is assembled on thegear case. By means of the structure and the method, the structure design of concentricity of the rotating inner holes of the two bushes is guaranteed through assembling; the machining process is greatly simplified, and the part universality and interchangeability are guaranteed.

The invention provides an airplane wing assembly. The airplane wing assembly comprises a wing, a small wing and a connection piece, wherein the wing is provided with a wing box; the small wing is located at a wing tip of the wing and is connected with the wing by the wing box; the connection piece comprises a butt joint rib which is assembled with the wing box and a central connector which is assembled with the small wing; the butt joint rib is provided with a first shearing pin hole and a second shearing pin hole; a first shearing pin and a second shearing pin are pressed into the first shearing pin hole and the second shearing pin hole respectively to form interference fit; the central connector is provided with a first lining hole and a second lining hole; a first lining and a second lining are pressed into the first lining hole and the second lining hole respectively to form interference fit; and the position relation between the first shearing pin hole and the second shearing pin hole is the same as the position relation between the first lining hole and the second lining hole, so that small interference fit can be realized between the first shearing pin and the second shearing pin and between the first lining and the second lining when the small wing provided with the central connector moves towards the wing box provided with the butt joint rib and when the first shearing pin and the second shearing pin are inserted into the first shearing pin hole and the second shearing pin hole in the central connector respectively.

The invention discloses a device and a method of a main shaft flange end connecting hole machining in a water pump. The device comprises a template (1), a plurality of positioning holes are uniformlydistributed in the upper edge of the template (1), boring sleeves (2) are arranged in the positioning holes, and bolts (3) and or screw rods which nuts (7) and gaskets (6) are arranged at the two endsof the screw rods are arranged in the positioning holes; and a plurality of screw holes are uniformly distributed in the parts, located in the inner sides of the positioning holes, of the template (1), and connecting screws (4) are arranged in the screw holes. The device and the method of the main shaft flange end connecting hole machining in the water pump have the advantages of being simple instructure, convenient to operate, low in cost and reliable in use; the quality and exchange performance of main shaft flange products machined by different manufacturers and different machine tools can be guaranteed by adopting the device and the method, so that the consistency of the products is controlled; and meanwhile, the machining time and the machining cost are greatly reduced.