130results about How to "Improve assembly manufacturability" patented technology

The invention provides a battery mounting and fixing structure of a purely electric automobile, which comprises a rear floor front cross beam assembly, a rear floor rear cross beam, left and right rear longitudinal beams and rear longitudinal beam battery left and right mounting frames. The rear floor front cross beam assembly is mounted on the front ends of the left and right rear longitudinal beams by bolts and connected with a rear floor; the two ends of the rear floor rear cross beam are arranged on the rear ends of the left and right rear longitudinal beams by bolts and connected with the rear floor; and the rear longitudinal beam battery left and right mounting frames are welded with the middle parts of the let and right rear longitudinal beams respectively. The rear floor front cross beam assembly, the rear floor rear cross beam and the rear longitudinal beam battery left and right mounting frames are provided with battery mounting holes respectively. The fixing structure is a frame structure, can reasonably bear the weight of a battery pack and optimize the torsional rigidity of the vehicle body, and is excellent in assembly process and convenient in mounting and detachment.

The invention provides a parking device of an electric automobile, belonging to the technical field of an automobile, and solving the problems that an existing electric parking brake is weaker in braking application force, poor in acting force stability, low in locking instantaneity, complex in structure, poor in assembly performance and integration performance, and the like. The parking device of the electric automobile comprises an mounting plate and a motor arranged on the mounting plate, wherein a parking gear is fixed around a wheel axle of the automobile, a pawl matched with the packing gear is arranged on the mounting plate, a control mechanism is arranged between the motor and the pawl, and the pawl is driven by the motor through the control mechanism to swing, so that the mode that a working end of the pawl is embedded into parking gear teeth and the mode that the working end of the pawl is departed from the parking gear teeth can transform from each other. The parking device of the electric automobile is an electrical and mechanical integrated high-tech integration device, so that the device is high in technological content, simple, compact, safe and reliable in structure, high in transmission efficiency, timely in effect, good in effect, convenient to install, low in machining difficulty, and good in assembly technology.

The invention relates to a transmission system of an alternating-current storage-battery electric forklift truck. The transmission system comprises a differential mechanism assembly, a speed reducer, a driving axle housing, a left brake, a right brake, a brake drum, a wheel hub, a left half axle and a right half axle. The speed reducer comprises a dual gear, a small dual gear and a pinion. The driving axle housing comprises a left axle housing, a speed-reducer main shell and a right axle housing. The left axle housing comprises a speed-reduction box and a left tubular axle which is connected with the speed-reduction box in sequence, wherein the speed-reduction box is in a clamshell shape, and a left sleeve is located on one side of the upper portion of the speed-reduction box. The speed-reducer main shell comprises a horizontal type barrel-shaped shell, wherein the upper portion of the barrel-shaped shell is a differential mechanism cavity, the lower portion of the barrel-shaped shell is a wheel axle cavity protruded downwards, and the differential mechanism assembly is located in the differential mechanism cavity. The right axle housing comprises a right axle housing body and a right tubular axle, wherein one end of the right axle housing body is in an end cap shape, and a right sleeve is located at the other end of the right axle housing body. The transmission system is compact in structure, good in manufacturability, low in manufacturing cost, good in assembly technology, and convenient to maintain.

The invention relates to a power assembly support beam mechanism for a pure electric automobile. A main beam frame of the mechanism consists of two parallel horizontal beams. A left support rod and a right support rod of an air conditioning compressor are respectively and parallelly arranged at the bending position at one end of the main beam frame, and a left support rod and a right support rod of a storage battery are respectively and parallelly arranged at the bending position at the other end of the main beam frame. Two sides of the right support rod of the air conditioning compressor are respectively and correspondingly provided with two first short support rods which are in shapes like inverted Chinese characters 'ba' mutually and correspondingly. Two second short support rods which are in shapes like inverted Chinese characters 'ba' mutually and correspondingly are respectively arranged on two main beams in the middle of the main beam frame. The two first short support rods and the two second short support rods form a driving motor controller support. A charger support is fixedly connected to the bottom of the main beam frame adjacent to the right support rod of the storage battery. A special part of a pure electric automobile power assembly can be directly or indirectly fixed and hard connected to the power assembly support beam mechanism to form an integrated power assembly, and vehicle front cabin arrangement space is utilized to the most extent under the conditions that passenger cabin space is not changed and comfort of passengers is not influenced.

The invention discloses a side wall structure for a hopper car. The side wall structure comprises an integrally formed upper side beam (1), an integrated side wall plate (2), an integrally formed lower side beam (3) and a lower side wall (4). The upper side beam (1) and the integrated side wall plate (2) below are riveted. The side wall plate (2) and the integrally formed lower side beam (3) below are riveted. The side wall plate is in a wall plate and side column integrated plate-column structure, and the side columns are arranged on the inner side of the car body. The lower side beam (3) and the lower side wall (4) below are riveted. According to the side wall structure, by means of the integrated side wall plate with the built-in side columns, both the strength reduction due to rivet holes and the increased weight and cost due to the usage of rivets are prevented, the side columns are arranged inside, so that space among the side columns is used, and the car body volume is increased.

The electrically driven and hand driven hydraulic lifting machine for turning integral cab belongs to the field of automotive technology. The electrically driven and hand driven hydraulic lifting machine includes electric pump, hand pump and its operating mechanism, change valve and its operating mechanism, non-return valve for hand pump, one-way throttle valve, hydraulically controlled non-return valve, servo mechanism, unlocking oil cylinder, sealing member and control oil path mounted integrally inside one housing; lifting oil cylinder, piston and relevant parts integrated and mounted on the housing; and motor for the electric pump on the housing. The electrically driven and hand driven hydraulic lifting machine has reliable operation, wide application range, great lifting force and other advantages.

The invention aims to provides a shaft end type torque loader, which comprises a collecting ring, a reducer, an input shaft, an output shaft, a drive motor, a base, a bearing bracket arranged outside the input shaft, an output shaft sleeve arranged outside the output shaft, an output shaft end bearing bracket arranged outside the output shaft sleeve, a harmonic reducer shell fixed outside a harmonic reducer and a planetary gear train reducer shell fixed outside a planetary gear train reducer. The collecting ring is sleeved on the input shaft. The input shaft is connected with the drive motor. One end of the harmonic reducer is connected with the drive motor, while the other end thereof is connected with the planetary gear train reducer. The planetary gear train reducer is also connected with the output shaft. Both the bearing bracket and the output shaft end bearing bracket are fixed on the base. The shaft end type torque loader can change the size and the direction of a torque at the closed end, can stably maintain a torque value at the closed end, and has an unlimited travel angle of the loading motion, capability of amplifying physical factors as well as small energy consumption and low vibration and noise in the operating process.

The invention provides a knife holder of a machine tool. The knife holder comprises a knife holder housing (1), a bracket (5), a spindle (8), a spindle sliding plate seat (9), a spindle driving system (12), a knife shifting motor (13), and a knife core shaft (6) mounted between the bracket (5) and the spindle (8); a sliding guide rail (2) is only arranged on the knife holder housing (1); flat plate structures are arranged at the lower ends of the bracket (5) and the spindle sliding plate seat (9); the bracket (5) and the spindle sliding plate seat (9) are respectively supported on the sliding guide rail (2) through sliding blocks (3); a bracket locking mechanism (4) is mounted between the bracket (5) and the spindle sliding plate seat (9); and the knife shifting motor (13), a nut (10) and a lead screw (11) are arranged on the left side or the right side of the spindle sliding plate seat (9). By adopting the technical scheme provided by the invention, the knife holder used on a gear hobbing machine or a worm wheel gear grinding machine has the advantages of simple structure, high rigidity, high assembly manufacturability and high assembly precision, can effectively improve the processing precision of parts, and is suitable for dry / wet cutting processing.

The invention provides a manometric bomb for a primer performance test. Two ends of the manometric bomb are of detachable cylinders. The manometric bomb comprises a bomb strut, a bomb support, a bomb sleeve, a bomb through cover, a bomb end cover, a primer end cover, a pressure-resistance transmissible glass sheet, a red copper gasket and the like, wherein primers of various types can be arranged at one end of the bomb, and a transmissible window is arranged at the other end of the bomb, and the temperature when the primer is ignited can be tested by utilizing a colorimetric infrared temperature sensor; a pressure testing hole is formed on the lateral side of the bomb, a pressure sensor can be arranged on the lateral side to measure the output pressure of the primer; and a conical protective cover is designed and arranged in front of the transmissible glass sheet, so that residues of a primer action product can be prevented from jetting on the glass sheet, the glass sheet is protected, and light can reliably transmit. By adopting the manometric bomb, closed environmental space is provided for measuring the pressure and temperature of the primer action product, and the requirement for quantitatively testing primer output energy can be fulfilled.

A four-foot walking robot comprises a rack, four mechanical legs of the same structure and an electric appliance unit, wherein the four mechanical legs are connected to four corners of the rack through rotating shafts, and the electric appliance unit is fixedly connected to the upper face of the rack. Each mechanical leg mainly comprises a rectangular annular piece, a double-parallelogram mechanism, elastic toes and three driving branch chains of the same structure, wherein the three driving branch chains are connected between the rack and the double-parallelogram mechanism in parallel through servo motor bodies and ball pairs, one set of opposite edges of the rectangular annular piece are connected to one corner of the rack, the other set of opposite edges of the rectangular annular piece are connected to the upper middle portion of the double-parallelogram mechanism, and the elastic toes are fixedly connected with the lower end of the double-parallelogram mechanism through bolts; and every three driving branch chains of the same structure each comprise a servo motor, a crank and a connection rod. The four-foot walking robot is flexible in running, high in walking speed, large in work space, high in bearing capacity and good in protective characteristic.

The disclosed fluid magnetization tube comprises: a magnetic tube with axial-magnetized magnetic rings with opposite polarity between neighbor ones, space rings of non-ferric-magnetic material and an annular tube; a high-permeability guide magnetic tube coaxial with the magnetic tube and owned a flow channel, or another magnetic tube with two magnetic rings in one section with same height and opposite magnetized direction; some members with straight or curve axis for location, fixing and guiding flow; two cove boards on both ends contained arc channels of flat shape or cylinder face to locate the tubes on both radial and axial directions. The opposite magnetization device comprises a plurality of magnetization tubes parallel inserted in the shell, and two end cap grooves to connect near tubes in series or parallel or mixture. The magnetization system uses said magnetization device and normal pump and power gear device for fluid cycle magnetization, which has high efficiency, simple structure, variable forms, small volume, light weight, and low cost.

This invention discloses a winded motor suitable to large torque starting, which comprises stator and rotor. The torque self-adapting winded motor cascades rotor coil circuit pre-set when starting. When rotor achieves the limit or set rotation speed, the centrifugal controller automatically gradually eliminates the resistance from rotor circuit to achieve the large torque starting. When motor load increases and speed reduces, the centrifugal automatically cascades the proper resistance into the rotor to increase torque.

The invention relates to a transmission with two clutches and two intermediate shafts. The transmission comprises the two clutches, a solid input shaft, a hollow input shaft, the two intermediate shafts and an output shaft, wherein the left ends of the coaxially designed solid input shaft and hollow input shaft are respectively connected with the two clutches, the right ends of the solid input shaft and the hollow input shaft are respectively connected with normally engaged gears in the transmission, the transmission has twelve speed states comprising five low-speed forward gears, five high-speed forward gears and two reverse gears, driving gears connected with the solid input shaft are simultaneously engaged with corresponding driven gears on the two intermediate shafts with relatively small transmission degree for forming the five high-speed forward gears and a high-speed reverse gear of the transmission, and driving gears connected with the hollow input shaft are simultaneously engaged with corresponding driven gears on the two intermediate shafts with relatively large transmission degree for forming the five speed-speed forward gears and a low-speed reverse gear of the transmission. An auxiliary box of the existing transmission with two intermediate shafts is omitted, the structure of the transmission is more compact, the axial size of the whole transmission is reduced, and the weight of the main body of the transmission is reduced by 5%-20%.

The invention provides a hexapod walker based on four-degree-of-freedom mechanism legs. The hexapod walker based on the four-degree-of-freedom mechanism legs comprises a rack, electric units and six structurally-identical four-degree-of-freedom mechanical legs correspondingly connected to two ends of the rack; the electric units are arranged above the rack, and a triangular connecting plate is fixedly connected with the rack; each mechanical leg mainly comprises the triangular connecting plate, four linear driving branches with the same structure, connecting pieces, V-shaped pieces, first andsecond cylindrical ear pieces, a hemispherical foot and a four-bar mechanism; all rotating shafts of the mechanical legs are parallel to each other; and in cooperation with a first linear driving branch and a second linear driving branch, the front-back swing and the leg extension of each leg are achieved through the synchronous movement of a third linear driving branch and a fourth linear drivingbranch, and the side swinging is achieved through the asynchronous movement of the third linear driving branch and the fourth linear driving branch, and swinging of a third connecting rod is achievedby the driving of the second linear driving branch. The hexapod walker based on the four-degree-of-freedom mechanism legs has the advantages of large leg working space, strong barrier-crossing ability, big bearing capacity and good assembly process.

A cutting and separating device of a fiber-reinforced composite material structure comprises a composite material plate (1), an energy-gathered cutting cable (2), a buffer sheath (3) and a protective cover (4). The energy-gathered cutting cable (2) is mounted on one side of a separating face of the composite material plate (1), a groove is formed in the bottom edge of the buffer sheath (3), and the size of the groove is matched with the back size of the energy-gathered cutting cable (2). The outer surface of the buffer sheath (3) is sleeved with a main body part of the protective cover (4), and the main body part of the protective cover (4) and a cutting and separating part of the composite material plate (1) are fixed through an extending mounting face on one side. Energy-gathered jet flows generated by the energy-gathered cutting cable (2) cut off the composite material plate (1), and separating is completed.

The invention discloses a minitype heavy-current PCB (Printed Circuit Board) automobile relay, which comprises a base part, a magnetic circuit part, a movable spring armature part and a housing, wherein the base part comprises a base and a stationary spring fixed on the base, and the stationary spring is provided with stationary spring leading-out pins; the magnetic circuit part comprises a coil part and a yoke fixed to the coil part; the moving spring armature part comprises a movable spring and an armature fixed to the movable spring; the movable spring armature part is fixed to the yoke through the movable spring, so that the armature is arranged at a position corresponding and fit to the coil part; the yoke of the magnetic circuit part is provided with yoke leading-out pins extending integrally from the yoke to lead out an electrical signal of the movable spring; the magnetic circuit part is fixed to the base through the yoke; and the yoke is also provided with a positioning and fixing structure so that the magnetic circuit part is positioned in the transverse direction and longitudinal direction of the base. with the structure, the automobile relay has the characteristics that the size is small, the load capacity is large, the leading-out pins are good in weldability, the structure is simple, the magnetic circuit part is positioned accurately on the base, and the assembly process is good.

A submersible permanent magnet synchronous motor (1000) includes a motor casing, a stator and a rotor are correspondingly arranged in the motor casing, and two ends of the motor casing are respectively sealed and are connected to other external devices through connecting devices, such that an integrated-structure casing assembly (100) can be formed; the stator and the rotor are a stator assembly (200) and a rotor assembly (300) with multi-section type structures, respectively, the stator assembly (200) is fixed on the casing assembly (100), and the rotor assembly (300) is penetrated and arranged in the stator assembly (200); oil is injected into the casing assembly (100). By adopting the integrated-structure motor casing assembly, the stator assembly (200) and the rotor assembly (300) with multi-section type structures, the operation reliability and the performance of the motor are improved.

The invention discloses a flue gas cover liquid seal, which is used between a flue gas cover and breast boards at the inner side and the outer side of a trolley, and comprises an internal ring-shaped liquid groove and an external ring-shaped liquid groove which are respectively arranged on the breast boards at the inner side and the outer side of the trolley, as well as an internal inserting plate and an external inserting plate; the internal inserting plate is fixedly connected with an inner side plate of the flue gas cover, and the lower edge of the internal inserting plate is arranged under the liquid level of the internal ring-shaped liquid groove and is provided with a gap with the bottom of the internal ring-shaped liquid groove; the external inserting plate is fixedly connected with an outer side plate of the flue gas cover, and the lower edge of the external inserting plate is arranged under the liquid level of the external ring-shaped liquid groove and is provided with a gap with the bottom of the external ring-shaped liquid groove; and the upper edges of groove side plates of the internal ring-shaped liquid groove and the external ring-shaped liquid groove close to the flue gas cover are respectively higher than the lower edges of the inner and the outer side plates of the flue gas cover. On the basis of ensuring reliable sealing between the flue gas cover and the trolley of a ring cooling machine, the operation stability of the ring cooling machine can be improved. On the basis, the invention also provides the ring cooling machine with the flue gas cover liquid seal.

The embodiment of the invention discloses a triaxial fiber-optic gyroscope inclinometer. The inclinometer comprises a cylindrical outer pipe, an IMU short section and a data processing circuit short section which are arranged in the outer pipe, and a rotating motor short section arranged at the first end of the outer pipe. The IMU short section comprises an IMU framework. An X-axis fiber-optic gyroscope, a Y-axis fiber-optic gyroscope and a Z-axis fiber-optic gyroscope orthogonal to each other, and an X-axis accelerometer, a Y-axis accelerometer and a Z-axis accelerometerare sequentially arranged on the IMU framework; and modular design of various parts are in detachable connection, and good assembly manufacturability is realized. The triaxial fiber-optic gyroscope inclinometer is based ona strapdown inertial navigation system principle, employs a triaxial fiber-optic gyroscope with small size and high precision, avoids the influence of ferromagnetic substances and overcomes the limitation of wellhead north-seeking and small-size borehole north-seeking in cased well application, is particularly suitable for track measurement and attitude description of horizontal wells and highly-deviated wells, and can achieve full-range full-attitude self-north-seeking and continuous measurement.

The invention discloses an automobile radiator assembly installation frame, which comprises an upper radiator transverse beam, a left upper radiator bracket, a right upper radiator bracket, a left radiator upright post, a right radiator upright post, a front engine carriage transverse beam, a left lower radiator bracket and a right lower radiator bracket, wherein the left upper radiator bracket and the right upper radiator bracket are welded on the upper radiator transverse beam; the left lower radiator bracket and the right lower radiator bracket are welded on the front engine carriage transverse beam; the left upper radiator bracket and the right upper radiator bracket are arranged oppositely one above the other; the four brackets are taken as four installation points of a radiator; the left radiator upright post and the right radiator upright post are connected to the two ends of the upper radiator transverse beam; the lower ends of the left radiator upright post and the right radiator upright post are connected to the two ends of the front engine carriage transverse beam through bolts; and the front engine carriage transverse beam is a part of an engine bracket assembly. Due to the adoption of the automobile radiator assembly installation frame, the installation requirements of a radiator assembly can be met, the strength and rigidity of the radiator installation frame are optimized, and the weight of the radiator on the front part of an automobile is scattered; and the automobile radiator assembly installation frame has high generality, can be general for derivative automobiles of the same style, has high assembly manufacturability, is installed on the premise of not influencing the original structure of the radiator, and is convenient to detach.

The invention belongs to the technical field of anchor drills for underground excavation roadway support in coal mines, in particular relating to a hydraulic five-arm anchor drill for the coal mine. With the adoption of the hydraulic five-arm anchor drill provided by the invention, the problem of low supporting efficiency caused by that the traditional four-arm anchor drill for the coal mine cannot be applicable to roadway support in the need of five-anchor-rod support can be solved. The hydraulic five-arm anchor drill comprises an anchor drilling system, wherein the anchor drilling system comprises five drilling arms; three drilling arms are mounted on a fixed sliding rail; and two drilling arms are respectively mounted on a left-sliding sliding rail and a right-sliding sliding rail. The hydraulic five-arm anchor drill provided by the invention has the advantages of being more suitable for the roadway supported by using the five anchor rods, being more common in application, and better meeting requirements for efficiently and rapidly tunneling mine coal faces with high yield. The hydraulic five-arm anchor drill provided by the invention can be used with a continuous miner so that the driving speed can be increased to 1.7 times that of the four-arm anchor drill used with the continuous miner. Therefore, the contradiction between excavating and supporting can be solved and the hydraulic five-arm anchor drill provided by the invention has a wide market prospect.

A built-in variable throttler comprises a throttler seat, a throttling post and a spring. A stair-step centre hole is arranged on the throttler seat and composed of a big diameter hole, a middle diameter hole and a small diameter hole, the big diameter hole is communicated with the small diameter hole through the middle diameter hole, the throttling post is formed by connecting a big diameter post, a middle diameter post and a small diameter post, the throttling post is installed in the throttler seat, the big diameter post is tightly matched with the big diameter hole, an oil storage chamber is defined by the top end of the big diameter post and the inner wall of the big diameter hole, an oil inlet chamber is formed between the middle diameter post and the big diameter hole, an oil inlet channel for communicating the oil storage chamber and the oil inlet chamber is arranged on the throttling post, a throttling gap communicated with the oil inlet channel is formed between the middle diameter post and the middle diameter hole, an oil collecting chamber is formed between the small diameter post and the middle diameter hole, the small diameter post is tightly matched with the small diameter hole, an output channel communicated with the oil collecting chamber is arranged on the small diameter post, and a spring abuts against and is arranged between the bottom end of the middle diameter post and the bottom end of the middle diameter hole. The built-in variable throttler is simple and compact in structure, and rapid in changing dynamic response of external loads.

The invention provides a high precision static magnetic field generating device for a nuclear magnetic resonance gyroscope. The device includes a coil support skeleton and a static magnetic field coil. Specifically, the coil support skeleton is cylindrical, and is internally equipped with an atom gas chamber and heating related structural parts, and the side wall of the coil support skeleton is provided with a plurality of symmetrically distributed annular winding grooves for fixing the static magnetic field coil. The static magnetic field coil consists of multiple groups of longitudinally symmetric circular coils, and the symmetric plane is a central cross section of the coil support skeleton, the coils are wound by one enamelled copper wire, and each group has the same number of windings. Through specific location distribution control, the high precision static magnetic field generating device provided by the invention can provide a high precision static magnetic field with extremely high uniformity for an area where the gas chamber of the nuclear magnetic resonance gyroscope is located. Compared with the prior art, the high precision static magnetic field generating device provided by the invention has the advantages of good magnetic field uniformity, more compact structure, easy installation and maintenance, and easy realization of engineering.

The invention relates to a binding machine for office supply bills and documents, of which the structure is a moving frame consisting of an upper moving plate, a lower moving plate, and a first guide rod, a second guide rod and a third guide rod which are arranged between the upper moving plate and the lower moving plate; the moving frame is arranged in a rack and is provided with an upper press riveting scalding head module, a punching module, a conductive rubber module and a lower press riveting scalding head module; the rack is provided with a working panel, a punching press riveting upper and lower moving module, a binding pipe in-place detecting module, a binding pipe conveying and pressing head releasing module and a pressing head component self locking mechanism. The binding machine is good in intelligentization, artificial participation is less, residual materials are convenient to take, the residual materials in a feeding working module can be automatically discharged, each working module of the whole machine is reasonably stressed in the whole binding process, and the pressing head module is not subjected to a binding force, such that the damage rate of the pressing head module self locking mechanism is greatly reduced, and the binding machine more meets the office requirements.

The present invention relates to an electrically-controlled gasoline injector. It includes the following several portions: shell body, valve core, metering orifice valve seat, iron core and guide bushing, electromagnetic coil, demagnetization piece, oil inlet pipe, spring and plastic outer shell. Said invention also provides the connection mode of all the above-mentioned portions and also provides the production method of said electrically-controlled gasoline injector.

The present invention provides high strength and high efficiency fluid magnetizing tube, magnetizing device and magnetizing system, and belongs to the field of fluid magnetizing technology. The fluid magnetizing tube includes a magnetic tube, a magnetic conducting tube, and a locating and guiding element to form one or several fluid channels and has straight or curved axis. The magnetic tube includes a magnetic ring, an isolating ring of non-ferromagnetic material and a duct; the magnetic conducting tube is high permeability duct or one other magnetic tube; and the end plates possess fluid channel. The magnetizing device includes a casing and several magnetizing tubes connected serially and / or in parallel. The magnetizing system has magnetizing device, conventional pump and power device to perform circular fluid magnetizing. The present invention has high strength axial and radial magnetic field and high fluid magnetizing efficiency.

A U shaft and V shaft structure for a sliding table type taper head device of a linear cutting machine tool relates to the field of a T-shaped U shaft and V shaft structure for the sliding table type taper head device. A U shaft travel switch is arranged on the top surface of a U shaft sliding base through a U shaft switch bend plate, and a U shaft vertical surface linear guide rail sliding block assembly block and a U shaft lateral surface linear guide rail sliding block assembly part are arranged between the U shaft sliding base and a U shaft connection bend plate. A U shaft vertical surface guide rail sliding block press plate, a U shaft stroke collision block and nuts of a U shaft lead screw nut pair are all arranged on the U shaft connection bend plate. A U shaft tail end bearing base and a U shaft motor transmission base are arranged on the U shaft sliding base. The U shaft tail end bearing base, a U shaft lead screw supporting bearing, the U shaft lead screw nut pair, the U shaft motor transmission base, a U shaft lead screw special bearing, a U shaft bearing flange cover, a U shaft coupler and a U shaft servo motor are integrally connected, a U shaft and a V shaft are same in structure and connected to form a T-shaped structure through a transition connection plate. The U shaft and V shaft structure for the sliding table type taper head device of the linear cutting machine tool is high in structural accuracy and compact in structure.

The invention relates to a firing device for a primer performance test, which comprises a firing device support, a firing device sleeve, a firing pin part, a firing device end cover, a toggle wrench and a firing wrench. The firing device is characterized in that: the firing device support is arranged on a base of a primer performance testing system through a guide rail, and is provided with a spiral adjusting mechanism which regulates the position of the firing device support so as to regulate the gap of the end part of a firing pin relative to the end face of primer; the firing device sleeve is in detachable connection to the firing device support, and can be replaced by a firing device sleeve made of an insulating material; a through hole is formed on the firing device end cover which is matched with the firing device sleeve made of the insulating material; a copper firing pin is arranged in the firing device sleeve made of the insulating material; and one end of the copper firing pin is connected with one electric firing lead wire, and the other electric firing lead wire is connected with the primer to form an electric firing loop. By adopting the firing device, specified standard firing energy is provided for percussive primer, and the firing device can form a firing loop with the electric primer to meet the firing requirement on electric primer, so that the universal requirement on the primer performance firing device can be fulfilled.

The invention provides a preparation method, a distributed winding motor stator, a distributed winding motor and a compressor. The preparation method includes: disposing an insulation accommodating structure having a receiving groove at the end portion of a first-end winding of a stator winding; fixing the winding lead of the stator winding in the insulation accommodating structure; arranging a shorting connector in the receiving groove in the insulation accommodating structure and shorting the shorting connector and the winding lead; assembling an external lead to the shorting connector so that the external lead and the winding lead are shorted. The method can achieve automation and semi-automation of the motor lead-out wire process, thereby remarkably improving the production efficiency and reducing the labor cost effectively so as to improve the market competitiveness of the product.

Provided is an integrated balance suspension cross beam assembly. A cross beam body in the integrated balance suspension cross beam assembly has a hollow sealed cylindrical structure. An air inlet andoutlet, and a water drain valve are arranged at the top and bottom of the middle section of the cross beam body respectively. Both ends of the cross beam body are connected with thrust rod connectingportions, large bracket connecting portions and longitudinal beam connecting portions. The cross beam body may be left, middle and right cylindrical portions which are sequentially connected. The longitudinal beam connecting portions include connecting bottom plates, and longitudinal beam connecting holes and bottom plate inner chambers arranged above the connecting bottom plates. The thrust rodconnecting portions comprise front and rear thrust rod connecting branch portions which are symmetrically arranged front and back with a center axis of the cross beam body as a symmetry line. The large bracket connecting portions comprise bracket bottom plates, bracket bottom holes, and front and rear support plates. This design has uniform stress distribution under torsional conditions and can increase the torsional performance of the cross beam. The integrated balance suspension cross beam assembly has the function of acting as an air reservoir, the manufacturing and assembly efficiency canbe improved, and the overall weight is reduced so as to be conducive to the modular layout of chassis.