65 results about "Shaft length" patented technology

The invention discloses a precision clamp device for machining special-shaped workpieces in mechanical design, and relates to the technical field of mechanical manufacturing, the precision clamp device comprises a base main body, a reference bottom plate, a plurality of rotating shafts and corresponding elastic clamping blocks, the reference bottom plate is arranged on the base main body, and positioning slots are formed for the rotating shafts to be rotatably mounted; the rotating shafts can independently rotate and drive the elastic clamping blocks to deflect to adapt to the irregular surface of the special-shaped workpiece, the rotating shafts comprise rotating blocks matched with the inserting grooves and adjusting sliding grooves extending along the shaft length, and the rotating shafts are evenly distributed on the circumference of the reference bottom plate; an elastic clamping block is connected with a transmission screw and an adjusting nut, a linear sliding block is arranged to be matched with an adjusting sliding groove, a self-adaptive contact is arranged on the side, facing the clamping center, of the elastic clamping block, the contact is provided with an elastic protection contact end cover, and a stress sensing connecting rod and an elastic buffering spring are installed in the contact. A movable rod penetrates through the base body, one end of the movable rod is connected with a control handle, the other end of the movable rod is connected with a self-adaptive pressing plate, the movable rod is sleeved with a reset spring, the pressing plate is provided with a profiling abutting block, and the clamping stability is improved.

The invention relates to the technical field of mechanical fatigue testing, in particular to rotary bending fatigue testing equipment for a rotor shaft, which comprises a base, a rotary driving module, a loading module, a dynamic balance module, a crack monitoring module and an adjusting module, and is characterized in that the rotary driving module drives the rotor shaft to rotate through a belt transmission assembly; the loading module adopts a lever type force reversing mechanism to realize accurate bending moment loading; the dynamic balance module automatically counteracts eccentric vibration through a free disc and a symmetrical bearing seat; the crack monitoring module captures vibration abnormity and internal crack initiation in real time; and the adjusting module is automatically adapted to different shaft lengths by driving a threaded screw rod through a motor. Anti-slip lines are arranged on the inner sides of the clamps at the two ends to ensure stable clamping; the levers are symmetrically arranged and matched with the locking nuts, so that switching of translation force or bending force applied by the levers is facilitated, the equipment realizes high-precision and full-period fatigue test, and the device is suitable for reliability evaluation of key rotor parts of aero-engines and steam turbines.

The invention provides a main shaft thermal error control device and method and a main shaft assembly. The main shaft thermal error control device comprises a shaft body (1) provided with a plurality of mounting grooves (2); the distributed fiber bragg grating sensing unit (3) is embedded in the mounting groove (2) and used for monitoring temperature and strain data of the shaft body (1), and the distributed fiber bragg grating sensing unit (3) comprises an axial monitoring section, a radial monitoring section and a circumferential monitoring section; the shaft length adjusting device is arranged on the peripheral side of the distributed fiber grating sensing unit (3) and fixedly connected with the shaft body (1), and the axial length of the shaft body (1) is adjusted according to the temperature and strain data, monitored by the distributed fiber grating sensing unit (3), of the shaft body (1). According to the main shaft thermal error control device, the monitoring precision and the response speed of the temperature and the strain of the main shaft can be improved, and the requirements of modern high-speed precision machining equipment for a high-precision and fast-response compensation device are met.

The application relates to a multi-station automatic machining method for intermediate shafts, which comprises the following steps: placing intermediate shaft blanks to be machined in a forward-reverse detection station, numbering, and establishing intermediate shaft codes; performing forward-reverse detection through a laser sensor on the forward-reverse detection station; performing taper hole depth detection on the intermediate shaft through a contact type displacement sensor on a taper hole detection station, simultaneously performing length detection on the intermediate shaft, then adding the taper hole depth information and the intermediate shaft length information to each intermediate shaft code; reading the parameter information of each intermediate shaft for corresponding machining, grabbing the intermediate shaft by a translation manipulator to a thread rolling machining device for machining, obtaining intermediate shaft finished products; blowing oil, and conveying and storing the intermediate shaft finished products after oil blowing. Compared with the prior art, the application realizes a safe and efficient intermediate shaft machining process through full-automatic coding feeding, forward-reverse adjustment, automatic station translation handling, code information adding and corresponding machining input.

The utility model relates to the field of steel manufacturing, in particular to a mounting shaft dismounting table which comprises a frame body, the upper portion of the frame body is fixedly connected with a hydraulic cylinder which is vertically arranged downwards, a pressing head is installed at the telescopic end of the hydraulic cylinder, two supporting rods are symmetrically arranged below the hydraulic cylinder, and the two ends of each supporting rod are placed on supporting plates respectively. The lower surface of the supporting plate is fixedly connected with lifting rods of a lead screw lifting machine, and the ends of the supporting rods are connected through adjusting devices so that the distance between the two supporting rods can be adjusted. The distance between the nylon roller to be disassembled and assembled and the hydraulic cylinder above the nylon roller can be adjusted according to needs, it is ensured that the nylon roller disassembling and assembling device can be suitable for nylon rollers with different axial lengths without using a long hydraulic cylinder, the distance between the supporting rods is adjusted through the adjusting device, the supporting position of the nylon roller is adjusted, and the nylon roller disassembling and assembling device meets the use requirement.

The utility model discloses an encoder support suitable for different axial lengths, comprising a support main body, the support main body is oppositely provided with a first installation surface and a second installation surface, and the first installation surface and the second installation surface are respectively provided with a connecting piece used for installing a PCBA board; a first supporting part and a second supporting part are respectively arranged below the first mounting surface and the second mounting surface, the vertical height between the first mounting surface and the bottom surface of the second supporting part is X, the vertical height between the second mounting surface and the bottom surface of the first supporting part is Y, and X is not equal to Y; a boss is arranged on the outer side of the support body, a through hole is formed in the boss, and the support body is of an integrally-formed structure. The utility model is suitable for the use requirements of encoders with different installation heights.

The utility model discloses a universal type transmission shaft packing frame which comprises a supporting piece and a plurality of installation pieces arranged on the supporting piece, the installation pieces are arranged side by side at intervals in the Y direction, every two adjacent installation pieces are arranged in a staggered mode in the X direction, each installation piece comprises two clamping grooves, and the two clamping grooves are arranged at intervals in the X direction and used for clamping a transmission shaft. The supporting piece is used for connecting the multiple installation pieces, the installation pieces are used for clamping the transmission shaft, the positions of the installation pieces are limited through the supporting piece, and the problem that the installation pieces and the transmission shaft are prone to displacement is solved. The installation parts are arranged in a staggered mode, due to the structural limitation of the transmission shafts, the adjacent installation parts are arranged in the length direction of the transmission shafts in a staggered mode, the two connector positions of the transmission shafts can be adjacent to the shaft middle positions of the adjacent transmission shafts, the distance between the two adjacent transmission shafts is reduced, and then the arrangement distance of the multiple transmission shafts is reduced; according to the arrangement mode, more transmission shafts can be loaded, and then the loading rate of the transmission shafts is increased.

The invention discloses an automatic discharging device and method for camshaft machining, and relates to the technical field of conveying devices for numerical control machining. A cam profile detection mechanism, a reference transmission control mechanism and a cam shaft reference positioning and adjusting mechanism are arranged on the rack; the cam contour detection mechanism comprises a detection roller, a detection shaft and an infrared correlation sensor. According to the invention, the cam contour detection mechanism is arranged, a detection roller is utilized to continuously abut against the full axis length of the cam shaft, and a detection shaft, a sliding block and an infrared correlation sensor are combined to detect the contour change of the cam shaft in real time and convert parameters such as the axis length, the number of cams and the distance between the cams; the problems that in the prior art, camshaft parameters are measured manually, efficiency is low, and errors are prone to occurring are solved, follow-up machining reference deviation caused by inaccurate parameter measurement is avoided, the accuracy and efficiency of parameter obtaining before camshaft machining are improved, and a reliable data basis is provided for precise machining.

The application discloses a power gear shifting transmission, and belongs to the technical field of transmission equipment, which comprises two rotating shafts arranged on a frame; a plurality of wheel trains are arranged along the axial length direction of the rotating shafts in sequence, a plurality of gear wheels with different numbers of teeth are arranged on one rotating shaft, and a plurality of gear wheels are arranged on the other rotating shaft; the plurality of gear wheels are meshed with the plurality of gear wheels respectively; a movable wheel is arranged on the rotating shaft provided with the gear wheels and the rotating shaft is provided with a spiral guide groove, the movable wheel is provided with a protrusion matched with the spiral guide groove; an end face ratchet wheel one is fixed with the gear wheels; an end face ratchet wheel two is sleeved on the rotating shaft provided with the gear wheels, and the end face ratchet wheel two is fixed with the movable wheel; a driving member can drive the movable wheel to move so that the teeth of the end face ratchet wheel one are engaged with the teeth of the end face ratchet wheel two; and the two rotating shafts are power input shafts and power output shafts respectively. The transmission can effectively reduce the gear shifting interval time, reduce the power loss during gear shifting, has high transmission efficiency, can realize a plurality of speed outputs, and has a stable gear shifting process.

The utility model relates to the field of transmission shafts, and discloses a modularized quick-release transmission shaft assembly which comprises a transmission shaft and a flange yoke, the flange yoke is installed at one end of the transmission shaft, a clamping structure is arranged at one end of the transmission shaft and located in a first connecting pipe, an extension structure is arranged in the first connecting pipe, and the other end of the extension structure is fixedly connected with a second connecting pipe. During installation, only the connecting block needs to be aligned with the connecting pipe to be inserted into the connecting pipe, connection can be completed by means of the elastic force of the spring, the magnetic attraction effect and simple threaded rod screwing-in operation, parts can be easily separated by screwing out the threaded rod during disassembly, and the assembly and disassembly are convenient. By means of the design, the installation and maintenance process is greatly simplified, the assembly can conveniently adjust the length of the transmission shaft through cooperation of the sliding rods, the sliding grooves and the clamping grooves, different application scenes can be rapidly adapted, high cost caused by overall replacement of the transmission shaft is avoided, and adaptability is remarkably improved.

Provided is an in-wheel motor capable of suppressing excessive torque from being transmitted to a rotor or a wheel and capable of shortening the length of a shaft. In an outer rotor type motor in which a rotor (9) is provided on the outer periphery of a stator (6), an in-wheel motor (1) provided inside a wheel is provided with a driving-side rotating member (10) that rotates integrally with the rotor (9), a driven-side rotating member (17) that rotates integrally with the wheel, and a transmission portion (18) that transmits torque between the driving-side rotating member (10) and the driven-side rotating member (17). The transmission portion (18) is configured to, in a case where torque acting on either of the driving-side rotating member (10) and the driven-side rotating member (17) is equal to or greater than a predetermined torque that is predetermined in advance, cause the driving-side rotating member (10) and the driven-side rotating member (17) to relatively rotate, thereby limiting torque transmitted between the driving-side rotating member (10) and the driven-side rotating member (17) to the predetermined torque.

A vertical shaft speed-increasing power generation type fan system relates to the technical field of wind power generation and comprises a tower, a cabin, a generator assembly, a transmission assembly and a wind wheel assembly. The cabin is provided with a plurality of ventilation windows which are arranged at intervals in the circumferential direction of the cabin, and the cabin is installed at the top of the tower; the generator assembly is mounted in the cabin; an input shaft of the generator assembly is connected with the wind wheel assembly through the transmission assembly, and the wind wheel assembly is used for rotating under the action of wind power and transmitting torque to the generator assembly through the transmission assembly. The speed-increasing power generation assembly has both protection and ventilation effects, a cooling mechanism is omitted while the protection of the speed-increasing power generation assembly is improved, and the product manufacturing and quality maintenance cost is effectively reduced; meanwhile, transmission shaft length can be shortened, and power generation efficiency is improved.

This invention discloses a wide-range speed-regulating permanent magnet synchronous motor with unequal stator and rotor lengths, relating to the field of motor technology. It includes a stator, a rotor, and a dynamic effective stacking height switching mechanism. The stator and rotor are unequal in axial length. The dynamic effective stacking height switching mechanism drives the rotor to move axially and dynamically changes the effective stacking height between the stator and rotor. The effective stacking height is the axial overlap length between the stator and rotor, and the initial value of the effective stacking height between the rotor and the stator is less than the axial length of the stator. By employing a staggered arrangement of the rotor and stator with unequal axial lengths, and by dynamically changing the effective stacking height between the stator and rotor, the motor can switch and increase speed between high-speed low-torque and low-speed high-torque operating conditions without relying on field weakening control, thereby improving the stability and reliability of the motor.

The application discloses a bridge pier column outer wrapping reinforcing structure, a plurality of cylinder bodies are sequentially and fixedly connected in the front and the back, and the plurality of cylinder bodies are wrapped on the peripheral surface of a pier column body; a plurality of fixed flanges are arranged at one end of the cylinder body; a plurality of rotating flanges are arranged at the other end of the cylinder body, the plurality of rotating flanges are fixedly connected with adjacent fixed flanges; one end of an annular blade foot is arranged at the bottom of the cylinder body located at the bottom of the pier column body, and the other end of the annular blade foot extends downward along the axial length direction of the cylinder body; and a stiffening steel hoop is arranged at the peripheral part of the fixed flange. The steel casing body is arranged as a structure in which a plurality of cylinder bodies are sequentially and fixedly connected, so that the steel casing can be synchronously installed with a formwork in a pier column pouring stage, and subsequent secondary positioning and hoisting are avoided; the connection of the fixed flange and the rotating flange simplifies the splicing process of adjacent cylinder bodies, and prevents the pier column surface from being damaged due to mispositioning in the installation process; and the connection of the stiffening steel hoop and the fixed flange improves the structural strength of the fixed flange and the cylinder body, and prevents the splicing part from being deformed or separated due to external force.

The utility model relates to the technical field of coiling devices, and discloses a nylon yarn coiling device which comprises a mounting frame, a yarn coiling rod, a distance adjusting mechanism, a fixing frame, a first rotating disc, a second rotating disc and a driving mechanism. The distance between the fixing frame and the right side mounting frame is changed through the distance adjusting mechanism, the nylon yarn coiling device is matched with yarn coiling rods with different axial lengths, the two ends of the yarn coiling rods are detachably connected with the first rotary disc and the second rotary disc correspondingly, the driving mechanism drives the second rotary disc to rotate, and then the yarn coiling rods rotate to achieve nylon yarn coiling. By adopting the structure, the yarn winding rods with different axial lengths can be flexibly replaced, the winding requirements of polyamide yarns with various specifications are met, the equipment universality is improved, the equipment purchase cost is reduced, the equipment replacement time is shortened, and the production efficiency is improved.

The utility model provides an automobile window lifting actuator mechanism, which relates to the technical field of automobile glass lifter window lifting, and comprises a motor and a gearbox, the output end of the motor is fixedly connected with a transmission shaft, one side of the motor is fixedly connected with a clamping hook I, the front end and the rear end of the motor are fixedly connected with guide blocks, and the clamping hook I is fixedly connected with a clamping hook II. A threaded sleeve is fixedly installed at the top of the gearbox, a second clamping hook is fixedly connected to the outer wall of the gearbox, a positioning screw is arranged in the threaded sleeve, a fixing rod is fixedly connected to the outer wall of the gearbox, and an inserting rod is arranged on one side of the fixing rod. Different adjusting intervals can be adapted according to different axial length tolerances, the motor and the gear box are conveniently connected and fixed through mutual clamping matching between the first clamping hook and the second clamping hook, the positions of the first clamping hook and the second clamping hook are staggered by taking down the insertion rod and rotating the motor, and then the motor can be disassembled and taken down.

The invention provides a fuel injection type engine which has a high degree of freedom in arrangement of components in a cylinder head cover and can maintain high fuel injection accuracy of a fuel injector (2). The fuel injector (2) has a pressure receiving portion (2aa) in an intermediate body portion (2a) located in the middle of the fuel injector (2) in the axial direction thereof, the jig (5) has a main jig (6) disposed on the upper portion of the rocker arm bracket (3) and fitted over the stud bolt (4), and a sub jig (7) fitted over the intermediate body portion (2a) of the fuel injector (2), and the pressure receiving portion (2aa) is pressed by the tightening force of a nut (4a) fastened to the stud bolt (4). The main jig (6) presses the pressure receiving section (2aa) of the fuel injector (2) via a sub-jig (7) on the lower side of the main jig (6).

The utility model discloses a short shaft type magnetic coupling torque transmission component, which comprises a first connecting unit, a second connecting unit and a magnetic unit arranged in the first connecting unit, the magnetic unit comprises a connecting plate and a plurality of groups of magnetic components, and the plurality of magnetic components are arranged on the connecting plate in a radially movable manner. And the plurality of magnetic assemblies move in the radial direction relative to the second connecting unit. According to the scheme, axial movement adjustment does not need to be carried out, the axial length of the magnetic coupling does not need to meet the axial movement distance, the magnetic coupling can be changed into a short shaft type structure, the size structure is reduced, and the practicability of the magnetic coupling is improved.

A secondary rotation output borrowed shaft comprises a short slender shaft, a long slender shaft, and a middle coarse shaft, forming a first-order fixed shaft that is thick in the middle and thin at both ends. Bearings are fixed at both ends of the moving shaft cavity, positioned at the two perpendicular interfaces of the coarse and thin sections of the fixed shaft. The moving shaft is fixed to the outer surface of the coarse section of the fixed shaft via the bearings. A pulley is fixed to the left end of the moving shaft's outer surface, and a sprocket is fixed to the right end. The sprocket is connected to the output sprocket on the right end of the power output shaft via a chain, forming the primary power output structure. The pulley is connected to the pulley of the stubble shredder's moving shaft via a belt, forming the secondary power output structure. This secondary rotation output borrowed shaft constitutes the power output intermediary structure between the gearbox power output shaft and the stubble shredder's moving shaft, changing the power transmission structure. This secondary rotation output borrowed shaft has a novel design, reasonable structure, and flexible transmission. The power output shaft drives the stubble shredder's moving shaft to rotate via the secondary rotation output borrowed shaft, completing the stubble shredding operation more efficiently.

The utility model provides a connecting shaft combination structure for extension fork plate transmission, which solves the problems that a conventional connecting shaft for transmission is in a whole type, a trolley needs to be integrally disassembled or rotated by 180 degrees for installation in the disassembly and assembly process, errors are easy to occur, an electrical wiring part is easy to involve and the like, and the main scheme is that the connecting shaft combination structure comprises a multi-layer shuttle vehicle, the two ends of the top of the multi-layer shuttle vehicle are symmetrically provided with multi-stage stretching and forking plates and chain type transmission parts corresponding to the stretching and forking plates, the two chain type transmission parts are in transmission through the combined structure, and the combined structure comprises a coupling sleeve, a fixing part and two linear bearings corresponding to the chain type transmission parts respectively. The end, corresponding to the chain type transmission piece, of the linear bearing is rotationally connected through a bearing seat, the coupling sleeve is embedded in the other end of the linear bearing and detachably and fixedly connected with the linear bearing through the fixing piece, and the axial length of the coupling sleeve is smaller than half of the axial length of the linear bearing.

Systems and method for an electric axle assembly. The electric axle assembly includes, in one example, an electric machine rotationally coupled to a planetary differential and a first and second axle shaft directly rotationally coupled to the planetary differential. In the axle assembly, the second axle shaft is longer than the first axle shaft and the electric machine is positioned laterally between a first drive wheel shaft and a second drive wheel shaft that are rotationally coupled to the first axle shaft and the second axle shaft.

The invention discloses an annularly-arranged engine power device capable of achieving reciprocating rotation speed reduction and a power assembly, and belongs to the technical field of power machinery. The device comprises an air cylinder assembly, a rotary column body, a roller body and an L-shaped push rod. The rotary column body is provided with wave-shaped double-V-shaped grooves which are connected end to end, the roller body is provided with double frustum faces, the included angle of the generatrix of the roller body is equal to the V-shaped groove angle of the grooves, and the roller body is embedded into the grooves and can roll. The other end of the L-shaped push rod penetrates through the open slot and is fixedly connected with the roller body; the rotating cylinder is supported on the machine body through a rolling bearing, long and short power shafts are arranged at two ends, the long power shaft is provided with a first power output end, and the short power shaft is connected with a flywheel to form a second power output end. According to the device, the reciprocating motion of the piston is converted into the rotary motion of the rotary cylinder through matching of the groove and the roller body, a crankshaft connecting rod mechanism is omitted, the structure is simplified, cost and faults are reduced, efficiency is improved through dual-power output, power is balanced through annular arrangement, vibration and noise are reduced, and the device can adapt to different reduction ratios and application scenes by adjusting the wave crest number of the groove.

The utility model provides a high-precision parcel grabbing device. The high-precision parcel grabbing device comprises a base; the X-axis adjusting mechanism comprises a guide rail arranged on the base in the X-axis direction; the Y-axis adjusting mechanism comprises a lifting assembly arranged on the guide rail in the Y-axis direction and a mounting plate which is arranged on one side of the lifting assembly and can be driven by the lifting assembly to move; the rotary adjusting mechanism comprises a rotary table arranged on the mounting plate, and a mechanical arm is erected on the rotary table; and the conveying mechanism is arranged below the mechanical arm and used for outwards conveying the parcels grabbed by the mechanical arm. According to the mechanical arm disclosed by the utility model, the problems that the shooting error is large and the mechanical arm is easy to damage due to the fact that the existing mechanical arm is difficult to shoot or grab the corners of the parcel grabbing area due to the limitation of the axial length can be solved.

The utility model provides a long shaft type motor shaft, and belongs to the technical field of motors. The problem that runout deviation occurs in existing axial length operation is solved. The long-shaft type motor shaft comprises a main shaft body, the main shaft body is sleeved with an anti-abrasion assembly which is movably connected with the main shaft body and reduces jumping abrasion, and the anti-abrasion assembly comprises a movable unit which is connected with the main shaft body and facilitates rotation of the main shaft body and an installation unit which is connected with other structures, is used for installation of the movable unit and reduces jumping abrasion. The mounting unit comprises a mounting shell sleeve, and a connecting flange which is connected with the mounting shell sleeve and can be conveniently connected with other structures is arranged on the peripheral wall of the mounting shell sleeve. The utility model has the advantage of reducing run-out deviation.

The invention discloses an integrated sliding main bearing system and a maintenance method thereof. The integrated sliding main bearing system comprises a main shaft, a bearing seat, a radial bearing assembly, an axial sliding assembly and a gearbox. The main shaft is arranged in an inner cavity of the bearing seat in a penetrating mode, the input end of the gearbox is connected with the main shaft and the bearing seat, and the output end of the gearbox is connected to the generator. The radial bearing assemblies are detachably arranged on the front side and the rear side of an inner cavity of the bearing seat correspondingly and used for supporting the main shaft for torque transmission and radial limiting. And the axial sliding assembly is detachably arranged at the front end of the bearing seat and is used for axially limiting the main shaft. The supporting unit has the advantages of being compact in structure, convenient to disassemble and assemble, high in maintenance efficiency and the like, the main bearing, the thrust bearing and the gear box are integrated in the compact supporting unit, independent supporting points are reduced, the shafting length is shortened, and the bottleneck of ultra-large megawatt unit bearing design is broken.

The invention is a pump assembly (1) for a cooling system of an operating assembly of a vehicle, the pump assembly extending relative to an axis (X-X) and comprising: i) a housing assembly (2) comprising a housing body (21) and an auxiliary body (22) defining a dry chamber (201) and a wet chamber (202); ii) an electric motor assembly (4) comprising a stator (41) housed in the dry cavity (201) and a rotor (42) housed in the wet cavity (202); iii) an impeller assembly (3) housed in the wet chamber (202), comprising a blade body (30) and a control body (35) in which the rotor (42) is housed at least partially; iv) a shaft set (5), the majority of which is housed in the wet chamber (202), around which the impeller assembly (3) rotates, the shaft set comprising: a shaft (50) extending along an axis (X-X), comprising a free end (501) and a fixed end (500) engaged with the housing assembly (2); a head (51) positioned at the free end (501) projecting radially from the shaft (50) to provide an axial abutment against axial movement of the impeller assembly (3). The shaft (50) and the head (51) are in a single body. The shaft (50) extends in a cantilevered manner along the axis (X-X) from the housing assembly (2) to the head (51) by a shaft length (L), and the head (51) has a head height (l) along the axis (X-X); the ratio of the shaft length (L) to the head height (l) is between 10 and 25, preferably between 15 and 20.

The utility model relates to the technical field of grinding wheel balancing stands, in particular to a grinding wheel balancing stand with a stable supporting structure, which comprises two groups of flywheels, the two groups of flywheels are symmetrical about the central axis of the balancing stand, and the two groups of flywheels arranged in a staggered manner are not contacted in a flywheel mounting port. According to the grinding wheel balancing stand with the stable supporting structure, the flywheels are arranged in the flywheel installation openings in a staggered mode, when the main shaft of the grinding wheel body is in lap joint with the outer edge faces of the flywheels, the supporting effect on the grinding wheel body is achieved through the balancing stand, and therefore the grinding wheel body can be stably supported. The outer portion of a stabilizing rod is movably arranged in a cavity pipe, the distance between balancing frames can be adjusted according to the length of a main shaft of a grinding wheel body, and a worker can conveniently detect the balance degree of the grinding wheel body; therefore, the movement of the stabilizing rod in the cavity pipe is limited by adjusting the distance between the balancing frames.

The utility model relates to a deep hole drilling machine for processing a long through hole of an eccentric shaft in the technical field of deep hole drilling, which is characterized in that a sliding rail is arranged on a working table of a drilling machine base, two groups of drill bit assemblies capable of moving left and right are symmetrically arranged above the sliding rail, and two groups of driving devices for driving the drill bit assemblies to move are arranged in the working table; a clamping tool for clamping an eccentric shaft to be machined is arranged above the middle of the workbench. The clamping tool comprises a lower fixed clamping block, an upper movable clamping block and a clamping air cylinder. The drill bit assembly comprises a driving motor, a reduction gearbox and a drill chuck, a drill rod is installed in the drill chuck, a transmission rotating shaft is rotationally arranged in the reduction gearbox, the drill chuck is connected to the output end of the transmission rotating shaft, and the input end of the transmission rotating shaft is connected with the driving motor. According to the deep hole drilling machine, the drilling mode that the two drill bit assemblies conduct bidirectional opposite drilling from the two ends of the eccentric shaft to the middle at the same time is adopted, the deep hole drilling machine can better adapt to drilling operation of a long through hole of the long eccentric shaft, the fracture risk of a long drill rod of the deep hole drilling machine is reduced as much as possible, and the drilling precision and the drilling efficiency of the long through hole are guaranteed.

The utility model aims to solve the problems that the outer circle of the shaft end of the transmission spline shaft is mostly ground by manual grinding in the prior art, and the grinding process is excessive due to inertia generated by a key body in the rotating process of a lathe and the grinding process cannot be stopped when the lathe stops. The automatic detection grinding machining equipment for the shaft end outer circle of the transmission spline shaft comprises a shaft diameter detection device and a shaft length detection device which are arranged on an outer circle grinding machine. A spline positioning T-shaped rod is arranged on the surface of a turntable of a rotating tip on the cylindrical grinding machine. The shaft diameter detection device is arranged on a horizontal sliding rail on the cylindrical grinding machine, and the positioning center is the same as the central axis of a transmission spline shaft fixed on the cylindrical grinding machine; and an axial length detection device is fixed on a grinding wheel device of the cylindrical grinding machine.

The invention discloses a power dividing gear transmission device and a uniform load coefficient adjusting method. The power dividing gear transmission device comprises an output gear, an input gear and a plurality of power dividing branches. Each power dividing branch comprises an elastic shaft, a parallel turning gear, a spline reducing sleeve, a dividing gear arranged on the outer circle of the spline reducing sleeve, and an adjusting limiting assembly arranged on the outer circle of the rear end of the elastic shaft. The spline reducing sleeve is connected between the elastic shaft and the shunting gear in a sliding manner; the adjusting and limiting assembly is used for adjusting and limiting the sliding position of the spline reducing sleeve, so that the effective acting shaft length between the spline reducing sleeve and the parallel operation gear on the elastic shaft is adjusted, and the effective torsional rigidity of the elastic shaft is correspondingly adjusted. According to the gear transmission device, stepless adjustment of the effective torsional rigidity of the elastic shaft within a certain range can be achieved, various errors of all branches can be compensated, adjustment of gear train uniform load is achieved, and then the bearing capacity, transmission stability and reliability of a speed reducer are improved.