25results about How to "Reduce runout" patented technology

The utility model discloses a kind of two-stage planetary reduction module suitable for frameless motor, belong to robot movement field, to solve the problem of poor integration when existing frameless motor adapts reduction module, insufficient reduction capacity.The module includes motor, two-stage planetary reduction mechanism, motor shell, shell end cover and output flange;Motor contains coaxially arranged stator winding and motor rotor, and motor rotor is ladder shaft structure;Two-stage planetary reduction mechanism is composed of primary reduction unit and secondary reduction unit, primary sun gear is connected with motor rotor by first sun shaft, secondary sun gear is connected with primary planetary gear by first planet carrier, and output flange is connected with second planet shaft, and first gear ring is arranged on the inner wall of motor shell.The utility model does not need transition component, and integration is high, two-stage reduction can realize high transmission ratio, and transmission precision is high, support is stable, effectively improve equipment load capacity and operating reliability.

The invention relates to the technical field of part machining, and discloses a multi-station anti-vibration cutter stabilizing mechanism for carbon fiber part machining, which comprises a cutter chuck arranged on machining equipment; the milling cutter is used for machining parts; and the clamping mechanism is arranged on the cutter chuck and used for stably clamping the milling cutter, the clamping mechanism comprises a hollow sleeving ring, and the hollow sleeving ring axially moves after rotating. According to the multi-station anti-vibration cutter stabilizing mechanism for machining the carbon fiber parts, the positioning mechanism is arranged, and an axial hard positioning structure capable of being locked is arranged at the end of a milling cutter, so that end mechanical jacking and position locking are synchronously achieved after radial clamping of the cutter is completed, and the overall axial supporting rigidity of the cutter is remarkably improved; axial micro-motion and chatter caused by axial cutting force change and multi-station frequent reversing in the carbon fiber machining process are effectively restrained, and the quality defects such as layering and chatter marks on the machined surface are avoided.

The utility model relates to a motor capable of improving axial support and a wet mill, which comprise a casing, a stator fixed on the casing, a rotor which is rotatably accommodated at the inner side of the stator and is provided with a rotating shaft, and a first end cover and a second end cover which are arranged at the two axial sides of the casing, and are respectively provided with a first cavity and a second cavity, the device is characterized in that a first self-aligning roller bearing for supporting the rotating shaft is arranged in the first cavity, and a thrust bearing for supporting the rotating shaft, a spacer bush and a second self-aligning roller bearing are sequentially arranged in the second cavity from bottom to top along the axis. According to the motor capable of improving the axial bearing, the supporting structures on the two axial sides of the motor are improved, so that the motor can conveniently transmit the borne axial load to the second end cover, meanwhile, the rotating shaft of the motor can be self-adaptively aligned through the self-aligning roller bearings on the two axial sides, the radial run-out of the rotating shaft during rotation is reduced, and the service life of the motor is prolonged. And the axial load capacity of the motor is improved while the smooth rotation of the motor is ensured.

A mandrel comprises a mandrel body and a limiting block arranged on the mandrel body, the peripheral wall of the mandrel body is sleeved with a pressing piece and an expansion assembly used for being inserted into an inner hole of a worm gear, the expansion assembly is located between the limiting block and the pressing piece, the pressing piece is movably matched with the mandrel body in the axial direction, and the limiting block is arranged on the mandrel body. And the expansion assembly is extruded to expand in the radial direction when the pressing piece moves in the direction close to the limiting block, and the expansion assembly shrinks in the radial direction when the pressing piece moves in the direction away from the limiting block. During use, the worm gear is arranged on the peripheral wall of the expansion assembly in a sleeving mode, the pressing piece moves towards the limiting block, the diameter of the expansion assembly is gradually increased under extrusion of the pressing piece and the limiting block, the expansion assembly expands an inner hole of the worm gear, a gap between the expansion assembly and the inner hole is counteracted, and radial run-out of the worm gear is effectively reduced.

The invention provides a polishing device special for a deep hole runner of a pump body, and relates to the technical field of polishing equipment, the polishing device comprises a polishing part and a flexible shaft, the polishing part comprises a center disc and a plurality of supporting rods, and supporting rollers and polishing rollers are arranged on the two sides of the ends of the supporting rods correspondingly; when the supporting roller and the polishing roller are located in the pump body flow channel, the supporting roller makes contact with the polished part of the pump body flow channel, the area where the supporting roller is located serves as the polishing standard, the polishing roller makes contact with the unpolished part of the pump body flow channel, and when the polishing roller makes contact with local protrusions, the trend of radial displacement is generated. The first included angle is equal to the second included angle, and the supporting roller enables the grinding roller to keep the swing direction synchronous with the grinding reference so as to forcibly restrain radial displacement of the grinding roller, so that the grinding roller can apply continuous and stable active correction force to local protrusions, and the capacity of the grinding roller for effectively correcting the shape precision of the pump body flow channel is guaranteed; therefore, the grinding rigidity is ensured while the method adapts to complex runners.

The utility model relates to the technical field of terminal machines, and discloses a multifunctional wire arranging device of a terminal machine, which comprises a pay-off reel, a connecting mechanism and a rotating mechanism are arranged on the outer side of the pay-off reel, and the rotating mechanism is positioned on the outer side of the connecting mechanism; the connecting mechanism comprises a connecting part and an adjusting part; the connecting part is positioned below the adjusting part; each connecting part comprises two connecting plates, a clamping block and a spring, and an empty groove is formed in the inner side face of each connecting plate in a penetrating mode. Through the connecting mechanism, the pay-off reel is convenient to mount and dismount, operation of a worker is facilitated, the replacement efficiency of the pay-off reel is improved, and the working efficiency of the multifunctional wire arranging device of the terminal machine is improved; through the damping plate, vibration generated when the pay-off reel and the double-end motor work is effectively reduced, so that noise pollution in the working process of the wire arranging device is reduced, the wire arranging device is more stable in the working process, and the working environment of workers is improved.

The present invention belongs to the technical field of road cleaning, and in particular, relates to a garbage crushing device for sanitation vehicles. The present invention comprises a sanitation vehicle body, wherein a plurality of vehicle driving wheels symmetrically arranged along the center line of the sanitation vehicle body are arranged at the bottom of the sanitation vehicle body, a suction nozzle body is arranged on the sanitation vehicle body, and a suction pipe and a cover shell are arranged at the top of the suction nozzle body. The present invention designs the suspended special-shaped crushing blade assembly into a cantilever form, and there is no need to use a cutter head shaft to fix the suspended special-shaped crushing blade assembly at both ends of the cover shell. The resistance torque is small during driving, the energy consumption is low, the radial runout is reduced during high-speed rotation, it is not easy to cause structural damage, and the service life is long. At the same time, the suspended special-shaped crushing blade assembly can crush long strips of garbage such as branches entering the suction pipe in any posture, and the crushing capacity is stronger than that of traditional blades, the crushing effect is good, and the anti-blocking effect of the pipe is significantly improved.

The invention relates to efficient sample centrifugal filtration equipment which comprises a shell, the top of the shell is covered with a sealing cover, the bottom of the shell is provided with a discharging pipe, and a filtering mechanism is arranged in the shell; the filtering mechanism comprises a rotating disc, a first filter screen, a power assembly and a filtering assembly, the first filter screen is in the shape of a cylindrical tube, the first filter screen is vertically arranged, the rotating disc and the first filter screen are coaxially arranged, the rotating disc is arranged at the bottom end of the first filter screen in a sealed mode, and the power assembly is in transmission connection with the bottom of the rotating disc; according to the efficient sample centrifugal filtering equipment, the function of removing particulate matter intercepted on the first filter screen is achieved, the first filter screen is prevented from being blocked, the sample centrifugal filtering efficiency is improved, and through cooperation between the first filter screen and the collecting ring, radial run-out generated during rotation of the first filter screen can be reduced, and the stability of the first filter screen is improved.

The utility model discloses a grinding machine tool, it includes support frame, base, drive seat and workstation, the support frame is located base top, the workstation is along horizontal direction and is connected in base with sliding, drive seat is connected with sliding in support frame and the sliding direction is perpendicular with the workstation sliding direction, drive seat is connected with sliding along vertical direction and has the tool holder, drive seat and support frame are through the connecting piece sliding fit, drive seat is equipped with the installation hole that supplies big main shaft to insert, big main shaft drives the tool head to grind the product on the workstation, the workstation bottom is equipped with the sewage slot, and the sewage slot both ends are through the base both sides and are equipped with the collection box correspondingly, is equipped with the vibrating element in the sewage slot, and the bearing surface of workstation is to the sewage slot inside inclined structure. The utility model has the effect of adapting the demand of long time continuous production.

The application discloses a high-precision shaft pneumatic tool. The tool comprises a cylinder, a bottom plate, a base, a plurality of elastic clamps, a pressing plate, a pull core, a guide column, a guide sleeve and a plurality of axial positioning columns. The base is provided with a plurality of clamp mounting holes corresponding to the elastic clamps, and the pressing plate is provided with a pressing hole matched with the upper end of the elastic clamp. The cylinder drives the pressing plate to make axial reciprocating motion relative to the base through the pull core. The guide column and the guide sleeve limit the movement of the pressing plate along the axial direction. The axial positioning columns installed on the bottom plate are coaxially arranged with the elastic clamps. The air pressure regulating valve is arranged on the inlet circuit of the cylinder. When the pressing plate is moved towards the base by the pull core, the elastic clamp is radially contracted and self-centered to clamp the workpiece. Conversely, the elastic clamp is opened by its own elasticity to release the workpiece. The application can effectively reduce the clamping deformation and surface damage of small shaft parts, improve the radial run-out control ability, the repeat positioning accuracy, the multi-station machining consistency and the change efficiency.

The present invention belongs to the technical field of optical coherence tomography. A device and method for calibrating the end face distance of an optical fiber based on a gradient ceramic ferrule are provided, the internal structure of the ceramic ferrule is improved, and a diameter gradient ceramic ferrule is produced, which can make it easier for the optical fiber to enter the interior of the ceramic ferrule, facilitate its center alignment, and also facilitate the movement of the displacement optical fiber and can also achieve the effect of reducing radial runout during rotation; a method for calibrating the end face distance of an optical fiber based on a gradient ceramic ferrule is designed, and the same evaluation but different coefficients are selected according to different application scenarios. By comparing the size of the evaluation result value, the optimal end face distance is intuitively obtained, which greatly improves the evaluation efficiency and evaluation accuracy.

The utility model relates to adjustable speed filter automatic can sealing machine, including frame, the carousel of strip -shaped mouth of taking material of arc and the feed guide mechanism of arranging along carousel circumference, pre -press mechanism, edge sealing device (include press jar mechanism and sealing mechanism), discharge device etc. Sealing mechanism passes through double servo motor independent drive first / second transmission, and the speed difference of adjusting adapts different edge sealing demand, feed guide mechanism passes through adjustable connection mounting seat and integration detection element of strip -shaped hole, and pre -press / press jar mechanism fixes filter respectively through pre -press disc, press jar disc, and edge sealing subassembly is driven by cam (tension spring keeps contact), and discharge device takes the protection piece and prevents injury, and the material component (jacks, top material disc) auxiliary ejection. The equipment realizes efficient, stable, automatic can sealing operation, and promotes adaptability and product yield.

This invention relates to a conductive device for a wire EDM machine tool, comprising a rotating shaft, a guide ring, a bearing, a ring cover, a stationary shaft, a spring, an input rod, a receiving rod, and a wire. The bearing is installed in the inner hole of the rotating shaft, the guide ring is fitted onto the outside of the rotating shaft, and the ring cover is connected to one end of the rotating shaft. The front part of the stationary shaft is located in the inner hole of the bearing within the rotating shaft. The end of the stationary shaft protruding from the rotating shaft is the connection end for connecting to the wire EDM machine tool. A groove is provided inside the stationary shaft, and the input rod is positioned in the groove. The spring is located inside the groove of the stationary shaft and is pressed against by the end face of one end of the input rod. The outer side of the receiving rod is fixed to the middle of the ring cover, and the inner side of the receiving rod extends into the groove and contacts the input rod. The wire extends from the outside into the groove and connects to the input rod. This invention has a small overall size that does not affect the table travel, high coaxiality, and small radial runout, effectively reducing vibration of the electro-friction contact parts, reducing discharge loss caused by radial runout, and ensuring machining accuracy.

The invention discloses a chute for improving the performance of a saddle area of an axial flow pump and a design method and belongs to the field of fluid machinery. The inclined groove is formed in the inner wall of the axial-flow pump water inlet pipe which is installed at the front edge of the axial-flow pump body. The inclined groove and the axis of the axial flow pump water inlet pipe form a preset angle. The skewed slot is obliquely formed in the blade profile direction of the impeller, the two ends of the skewed slot are communicated with the two sides of a water inlet pipe of the axial flow pump respectively, and fluid at the inlet rim is rectified. The skewed slots are quadrilateral grooves, the depths of the grooves are the same, and the bottom surfaces of the grooves are on the same conical surface; a protrusion is formed between every two grooves, and the surfaces of the protrusions are located on the same conical surface. According to the design method for the inhibition chute in the saddle area of the axial flow pump, the size of the chute and the size of the axial flow pump are subjected to multi-scale coupling by establishing a new dimensionless number NOG, the size parameters of the chute can be efficiently, rapidly, accurately and reliably determined, and the design method is suitable for the design of the inhibition chute in the saddle area of the axial flow pump. The small-flow performance of the axial flow pump is improved to the maximum extent, and the design efficiency is affected to the minimum extent.

The utility model discloses a transmission connection structure and a medical cutter, the transmission connection structure is applied to the medical cutter, the medical cutter comprises an inner cutter bar assembly, the transmission connection structure comprises a supporting handle, the inner cutter bar assembly is rotatably arranged on the supporting handle in a penetrating mode in the circumferential direction, and the inner cutter bar assembly penetrates out of one side of the supporting handle; the transmission assembly is arranged on the other side of the supporting handle, and the transmission assembly can rotate in the circumferential direction relative to the supporting handle; one end of the connecting piece is fixedly connected to the transmission assembly and can synchronously rotate along with the transmission assembly, the other end of the connecting piece extends into the supporting handle to be in transmission connection with the inner cutter bar assembly, and the inner cutter bar assembly can synchronously rotate along with the transmission assembly through the connecting piece. According to the technical scheme, radial run-out of the connecting piece in the rotating process is reduced.

The utility model discloses a rotary sealing joint, which relates to the technical field of sealing elements and comprises an end connecting sleeve, the lower end of the end connecting sleeve is fixedly connected with a positioning plate through a screw, the upper end of the positioning plate is fixedly connected with a first bearing, and the upper end of the first bearing is fixedly connected with a bearing gasket. By means of the interference design that the upper bearing and the lower bearing are matched with the stepped installation groove, radial run-out of the rotating shaft during rotation can be effectively reduced, an elastic sealing structure is formed by the inclined spring and the framework, dynamic pre-tightening force is provided through the inclined spring, the framework sealing ring is made to adapt to deviation of the rotating shaft in a self-adaptive mode, and the rotating shaft is prevented from being damaged. Stable sealing can be kept in the reciprocating rotation of the rotating shaft, the adaptability of the rotary sealing joint to a high-dynamic load scene is improved, meanwhile, bearing lubricating grease can be effectively prevented from permeating into a fluid channel through a gap, and the requirement for pollution-free transmission of clean environments such as medical treatment and food can be met.

The present invention discloses a compressor parts cooperative processing device, which relates to the compressor parts processing technical field, and comprises: a machine tool body, the machine tool body comprises a frame, and a clamping part for clamping the workpiece is rotatably installed on the side of the frame; a cooperative processing unit, the cooperative processing unit comprises a plurality of rotating clamping rods, one end of the clamping rod is installed with a cutter head and a rolling wheel for limiting the jumping of the workpiece, and the other end of the clamping rod is provided with a hook head part for releasing the sealing ring after expansion. Through the flipping of the clamping rod, the rolling wheel and the cutter head at one end of the clamping rod clamp and constrain the turning of the workpiece, thereby reducing the axial and radial jumping of the workpiece during processing, and when the clamping rod is reset and flipped again, the hook head part lifts, expands, extends and releases the sealing ring in its hook groove, and the automatic cooperative turning, expansion and installation of the sealing ring are completed in combination with the limiting push of the push ring, thereby improving the work efficiency.

The invention discloses a rotor assembly, an electric drive assembly and a rotational inertia control method thereof, and relates to the technical field of motors. The invention aims to solve the problems of large radial run-out and poor NVH (Noise Vibration and Harshness) performance caused by insufficient rotational inertia of a rotor in the prior art. The invention provides a rotor assembly. The rotor assembly comprises a rotating shaft and a rotor core body fixed on the rotating shaft, the rotor assembly is characterized in that the rotor assembly further comprises an inertia increasing part, and the inertia increasing part is fixedly arranged on the rotating shaft and extends in the radial direction of the rotating shaft. The inertia increasing part is additionally arranged on the rotating shaft, so that the rotational inertia of the rotor assembly can be effectively and controllably improved, the radial run-out of the rotor in the working process is inhibited, the NVH performance of the electric drive assembly is remarkably optimized, and the operation reliability is improved.

The utility model relates to the technical field of bearing seats, in particular to a bearing seat casting structure, which comprises mounting plates, raised lines, a first connecting plate, a second connecting plate and a housing, the mounting plates are arranged in pairs and can be matched with each other, the opposite surfaces of the mounting plates are concave inwards to form mounting grooves for accommodating bearing rings and through holes for accommodating connecting shafts, and the raised lines are formed on the side surfaces of the mounting plates. The first connecting plates are located on the left side and the right side of the mounting plate, screw holes are formed in the first connecting plates, the housing covers the side face of the mounting plate in a] shape, second connecting plates are formed on the left side and the right side of the housing respectively, screw holes are formed in the second connecting plates, and the bottom faces of the second connecting plates can abut against the top faces of the first connecting plates. The bearing ring is fixed on the bearing seat by matching the housing with the mounting plates arranged in pairs, so that the runout of the bearing ring is reduced, the looseness of bolts is avoided, the abrasion loss of the bearing ring can be reduced, and the operation condition of the bearing ring is ensured.

A shaft conveying and clamping fixture, relating to the field of shaft machining, includes: a mounting base, a centering mechanism, a clamping mechanism, and a pushing mechanism. A clamp is provided at one end of the mounting base along its length to clamp the shaft. The centering mechanism includes a movable plate and a support cylinder respectively located at both ends of the mounting base along its length and moving along the axis of the clamp, with the support cylinder and clamp located at the same end. A first ejector pin, coaxially arranged with the clamp and detachable, is provided below the movable plate. A second ejector pin, moving relative to the support cylinder along its axis and coaxially arranged with the clamp, passes through the support cylinder for centering both ends of the shaft. The clamping mechanism is located below the movable plate and includes multiple support rings spaced apart along its length and with notches at the top. Multiple pressure rollers, equally spaced and rotating around their own axes, are provided on the inner side of the support rings along the circumferential direction. The axes of the pressure rollers are parallel to the axis of the clamp and are used to clamp the shaft. This fixture can simultaneously apply centering and limiting to both ends of the shaft, reducing radial runout and improving machining accuracy.

The present invention discloses a novel mounting device for improving the shooting accuracy of a certain type of heavy machine gun, comprising a bracket; a slide assembly, which is arranged on one side of the bracket and is slidably connected to the bracket and is used to install the certain type of heavy machine gun; a right mounting fixed support plate and a left mounting fixed support plate, which are detachably mounted on the bracket and are respectively located on both sides of the certain type of heavy machine gun; a buffer, which is arranged on the right mounting fixed support plate and the left mounting fixed support plate and is connected to the slide assembly; the overall layout design is optimized, the modular design is compact in structure, and a variety of structures are designed to improve the shooting accuracy. The device has a remote control operation function, and the operator can control the machine gun in the vehicle body; manual-automatic first-shot loading and manual-automatic integrated electric firing are realized, single-shot and continuous-shot shooting and control are realized, and a novel mounting device that combines electromechanical and control, has a high degree of automation, high shooting accuracy, and high reliability is realized under the condition of limited space.

The present invention relates to a three-phase common box switch, comprising a housing, a three-phase contact structure is arranged in the housing, and an operating mechanism, the operating mechanism comprises a mechanism box and a power output end, the mechanism box is mounted on the housing; the operating mechanism has a driving shaft, the driving shaft is inserted into the housing through the outer seal of the housing; the driving shaft is provided with a power output part, the transmission rod is provided with a power input part, the power input part is located between a side phase contact structure and the middle phase contact structure; the power output part is connected to the power input part in a transmission manner, so that the driving shaft drives the transmission rod to rotate. The power output part on the driving shaft is connected to the power input part on the power transmission rod in a transmission manner. Since the power input part is located between a side phase contact structure and the middle phase contact structure, the transmission distance between the driving shaft and the middle phase contact structure and the side phase contact structure is reduced, and the transmission accuracy between the operating mechanism and each phase contact structure is improved.

The utility model provides a deep hole groove processingequipment, solved the problem that the radial direction of the knife pole will appear the problem of jumping when deep hole groove processing. Further include: support block, set up in the end of the knife pole, the size of support block is matched with the hole size of work piece, no. The guide groove is set up in one side of support block or the knife pole, and the guide groove is parallel with the tool bit setting, no. The convex part is set up in one side of the knife pole or support block, is used for with no. The guide groove cooperates. The support block is put into the hole of work piece together with the knife pole, and the support block is the cylinder structure, and the work piece is convenient to rotate relative to the support block, and the gear group is installed in the knife pole, is used for driving the circumferential rotation of the tool bit, and no. The guide groove cooperates with no. The convex part is convenient for the knife pole to move relative to the support block, when carrying out the groove processing, since the support block is connected with the knife pole, and then the knife pole is positioned, can effectively reduce the radial jumping of the knife pole, improves the processing quality of deep hole groove.

This utility model discloses a forming device for producing bright decorative strips. It is characterized by comprising: a forming device, which includes a base, a connecting frame fixedly connected to the top of the base, and rollers rotatably connected to the front and rear ends of the connecting frame via rotating shafts. A lower forming pressure roller is horizontally arranged inside the connecting frame. This utility model, by setting up a forming device, a frame, and a spacing control mechanism, utilizes a motor to drive the positive and negative threaded rods to rotate, thereby driving the screw sleeve, positioning rod, transmission frame, and transmission plate to move and lift the upper forming pressure roller, thus automatically adjusting the spacing between the upper and lower forming pressure rollers. This structure eliminates the need for manual adjustment, is easy to operate, effectively improves adjustment efficiency and accuracy, ensures the consistency of the bright decorative strip forming dimensions, and has a stable and reliable overall transmission structure, adapting to the production needs of bright decorative strips of different specifications.

The application discloses a machining turnover table and belongs to the technical field of machining clamps. Mainly comprises: a support, a position adjusting assembly is installed on one side of the support, the position adjusting assembly comprises an adjusting box installed on one side of the support, a support plate capable of relative movement is installed on the adjusting box, limit grooves are arranged on the support plate, a turnover assembly is installed in the support plate, the turnover assembly comprises a turnover frame capable of rotating on the support plate, limit rings capable of rotating in the limit grooves are installed on the turnover frame, and a plurality of limit holes are arranged on the limit rings. The machining turnover table can enhance turnover stability and reduce radial runout through the rotation of the limit ring of the turnover assembly in the limit groove, and the locking of the turnover frame can be completed through the insertion of the limit pin driven by the small electric push rod in the positioning assembly into the limit hole, so that the machining precision is guaranteed.