552 results about "Servomotor" patented technology

A servomotor cylinder inner wall scratch robot self-adaptive additive and subtractive material repairing method based on three-dimensional measurement is characterized in that a six-axis mechanical arm is integrated with a line laser sensor and milling, laser cladding and constant-force grinding and polishing tools, and automatic repairing is achieved. A regular groove body is milled through a slicing method and a rectangular-ambulatory-plane strategy; a workpiece coordinate system is built at the bottom of the groove, a bow-shaped layered alternate path is adopted for filling materials, and the laser power and the powder feeding rate are adjusted by measuring, matching and correcting the path according to the characteristics of the groove; and finally, a surplus height boundary is scanned and extracted, a rough grinding path is generated with the scratch trend as the benchmark, fine polishing is conducted through a reciprocating zigzag strategy, parameters are dynamically adjusted in combination with closed-loop feedback, and smooth transition between a cladding layer and the original surface is achieved. The method solves the problems of long construction period and low precision of traditional repair, integrates multiple processes and high-precision measurement, improves the repair efficiency and quality, and is suitable for on-site rapid maintenance of hydroelectric equipment.

A hydroelectric generating set AGC and primary frequency control adjustment collaborative control method, comprising: introducing a governor primary frequency control action guide vane control deviation YPFC into a monitoring system of a hydroelectric generating set, incorporating the corresponding relationship between active power and guide vane opening under different working heads of the hydroelectric generating set into an AGC power control algorithm, performing AGC to track real-time the working head of the set and performing power-guide vane opening conversion and guide vane opening-power conversion on the basis of the working head of the hydroelectric generating set. The function of hydroelectric generating set AGC and primary frequency control in stabilizing the system load frequency can be fully but not excessively exerted. By means of the method, the function of AGC and primary frequency control in ensuring safe and stable operation of the system can be fully exerted, and faster adjustment of the unit can be achieved, thereby reducing guide vane servomotor fluctuation and active power frequency fluctuation during AGC and primary frequency control, reducing the operational intensity of control machinery of the set and the consumption of governor operating oil pressure, significantly reducing the maintenance costs, and reducing the risk of active power frequency oscillation in the system.

The invention discloses a dyeing machine cloth guide wheel set structure capable of preventing cloth winding, and relates to the technical field of dyeing machines. A support frame is fixedly mounted at the top of the dyeing machine through bolts; the use method of synchronous driving and preliminary guiding, air film resistance reduction and dynamic supporting, intelligent wrinkle detection and smoothing deviation correction and secondary smoothing and adhesion separation is adopted, the front guide roller, the adjusting guide roller and the rear guide roller are synchronously driven by a servo motor to convey cloth, and the cloth is conveyed by the front guide roller, the adjusting guide roller and the rear guide roller. According to the multi-dimensional cooperative anti-wrinkling and anti-winding system, the multi-dimensional cooperative anti-wrinkling and anti-winding effects are achieved through the cooperative effect of three core dimensions of tension control optimization, active path deviation correction and physical separation adhesion on the whole, and the anti-wrinkling and anti-winding effect is achieved through the multi-dimensional cooperative anti-wrinkling and anti-winding effect of the multi-dimensional cooperative anti-wrinkling and anti-winding system, so that the multi-dimensional cooperative anti-wrinkling and anti-winding effect is achieved. And the risks of wrinkle formation and subsequent winding of the cloth in the cloth guiding process are efficiently eliminated.

The atomization device of the plant protection unmanned aerial vehicle for citrus planting comprises a top mounting base and a connecting arm, two through holes are symmetrically formed in the lower portion of the top mounting base, a first fixing hole is formed in the top of the connecting arm, and a connecting rod slidably penetrates through the first fixing hole and the two through holes jointly; through cooperative use of the suction mechanism and the heat dissipation mechanism, rapid heat dissipation of the servo motor is achieved, sucked air enters the bottom shell through a one-way valve, the interior of the bottom shell is pressurized, centrifugal atomization of the atomization mechanism is matched, pressurized atomization and centrifugal atomization are achieved, the atomization effect is good, and the service life of the servo motor is prolonged. The water flow is preliminarily segmented by the first segmentation fin, the second segmentation is performed by the cutting column, and the third segmentation is performed by the second segmentation fin, so that the multi-stage segmentation of the water flow is realized, the atomization effect is further improved, and the coaxial opposite rotation of the first-stage atomization assembly and the second-stage atomization assembly can be realized by the single servo motor.

The invention discloses an axial flow water turbine water guide mechanism and a using method, the axial flow water turbine water guide mechanism comprises an upper ring seat (1) and a lower ring seat (2), a plurality of guide vanes (3) are arranged between the upper ring seat (1) and the lower ring seat (2), rotating shafts (4) are arranged in the middles of the upper end and the lower end of each guide vane (3), a driving ring (5) is rotatably connected to the upper ring seat (1), and servomotors (6) are connected to the two sides of the driving ring (5). The upper ends of the rotating shafts (4) are connected with the driving ring (5) through a first connecting rod (7) and a second connecting rod (8), and a linkage mechanism connected with the lower ends of all the rotating shafts (4) is arranged at the bottom of the lower ring seat (2); the linkage mechanism comprises a plurality of adapter plates (9), the adapter plates (9) are fixed to the lower ends of the rotating shafts (4) respectively, third connecting rods (10) are arranged between the adjacent adapter plates (9), and the third connecting rods (10) are hinged to the adapter plates (9). The method has the advantage of being low in maintenance frequency.

A sound-recognition-based method for monitoring an operating condition abnormity of an oil pump electric motor and outlet pipes thereof. Applying soundprint recognition technology to a speed-regulating hydraulic system of a hydropower station, and rational layout of on-site soundprint sensors realize real-time monitoring of operating conditions of an oil pump electric motor and outlet pipes thereof, thereby improving the intelligence level of device management, and achieving an industrial demonstration effect. By means of deep learning analysis of a soundprint fault sample library combined with multi-dimensional factors such as pressure, liquid level and temperature, a soundprint-recognition-based multi-dimensional-factor logical determination process for abnormal operating conditions of an oil pump electric motor and outlet pipes is designed, such that real-time monitoring and rapid locating of abnormal operating conditions such as base vibration, lubricating oil deficiency in an oil pump electric motor, pump body blade fracture, check valve malfunction, incomplete closure or internal leakage of a drain valve, frequent loading and unloading of an oil pump, and servomotor pipe pulsation are realized, so as to promptly use response measures such as automatic switching of main and standby oil pump electric motor units or automatic adjustment of unit load. Using soundprint sensors and soundprint recognition technology to monitor the state of on-site devices in real time eliminates uncertainties in manual inspection, and improves the fault diagnosis and analysis efficiency.

A storage system comprises a rack defining a plurality of storage locations arranged one above the other, trays removably stored at the storage locations, and an elevator configured for moving a selected tray between its assigned storage location and a retrieval space below the storage locations. The storage locations are formed by pairs of horizontally opposite spaced apart rails with inwardly projecting sidewalls on which a tray can be rested. The elevator comprises a platform configured to carry and transfer the trays to and from the rack, and a drive system configured to move the platform that includes a servomotor. The platform carries optical sensors used cooperatively with the servomotor to detect a selected storage location of a tray to be stored or retrieved. Upon input of a selected storage location, the platform is displaced initially at a high speed until reaching a vertically offset position relative to the selected storage position detected using the servomotor, and therefrom at a low speed until sidewalls of the rails of the selected storage location are detected using the optical sensors.

The present invention relates to a computer-implemented method for controlling the operation of a robotic prothesis. The method is carried out by receiving and processing EMG and EEG signals received from a user and sending said signals to a nanocomputer, wherein artificial intelligence and specific algorithms interpret the received signals and activate different servomotors, thus allowing the robotic prothesis to move. Furthermore, additional sensors for protecting the user, an inertial measurement unit (IMU), a virtual assistant and a failure diagnosis and loading system are included. The method is managed via a computer program that is loaded into the nanocomputer.

Sensorless method for chatter detection in machine tools. When the machine tool spindle is running, a spindle motor torque signal is analyzed in the time domain to determine whether an insert is currently machining a workpiece. If it is not machining, an air-cut reference signal is stored for later use. If it is machining, the spindle motor torque signal, along with positioning servo motor signals, is converted to the frequency domain and filtered. Filtering steps include eliminating the air-cut reference signal by spectral subtraction, eliminating harmonic components of the spindle, eliminating artificial peaks due to aliasing effects, and eliminating artificial peaks due to encoder error effects.After filtering, indicator criteria are evaluated to detect chatter. These criteria include the magnitude of the filtered torque signal for servo motor data and the ratio of the filtered torque signal to the air-cut reference signal for spindle data. If chatter is detected, corrective actions are taken.

The utility model relates to a tubular product clamping transfer mechanism and laser pipe cutting machine, including tubular product placing rack, the tubular product placing rack is internally and fixedly connected with a placing plate, the tubular product is placed on the top of the placing plate, the top of the tubular product placing rack close to one end is fixedly connected with a fixed shell, one side of the fixed shell is fixedly connected with a servo motor, and the servo motor is fixedly connected with a servo motor. The output end of the servo motor is in transmission connection with a lead screw, the lead screw rotationally penetrates through the fixing shell, two sections of threads opposite in rotation direction are arranged on the outer circumferential face of the lead screw, sliding blocks are in threaded connection with the two sections of threads on the outer circumferential face of the lead screw, and two linear rails are fixedly connected to the inner bottom wall of the fixing shell. The utility model relates to the technical field of pipe processing. According to the utility model, the fixed roller and the driving roller are close to and far away from each other through forward and reverse rotation of the servo motor, so that a pipe is clamped and loosened, the precision is high, durability is realized, the response speed is high, and the influence of unstable air pressure is avoided; and then the motor works to drive the driving rollers to rotate, so that the pipes are transferred.

The invention provides a hydraulic system structure capable of detecting internal leakage of an isolating valve and an internal leakage detection method, relates to the technical field of mechanical design of hydraulic systems, and solves the limitation problem that an existing detection mode is time-consuming and labor-consuming. The hydraulic system structure is sequentially connected with an isolating valve, a main distributing system oil source pipeline and a main distributing valve from a pressure oil tank; the main distributing valve is connected with a first servomotor and a second servomotor, the first servomotor and the second servomotor are both connected to the control ring, and the main distributing valve is further connected to the oil collecting tank through a cavity closing oil return pipeline. The isolating valve is further connected with a control valve, the control valve is provided with an oil supply port P, an oil return port T, a first working port A and a second working port B, the oil return port T is connected to the oil collecting groove through an oil discharge main pipeline, the first working port A is communicated with a closed piston cavity of the isolating valve, and the second working port B is communicated with an open piston cavity of the isolating valve; whether the isolating valve has an inner leakage fault or not can be quickly and conveniently determined by detecting whether the oil discharge main pipeline leaks oil or not.

The invention relates to the technical field of water turbine generator set installation and maintenance, and discloses an intelligent water turbine runner test device and method, and the device comprises a hydraulic control unit which is used for providing and adjusting pressure oil for a constant-pressure cavity, an opening cavity and a closing cavity of a water turbine runner; and the main controller is used for receiving a user instruction, calling an automatic control logic according to a selected test item, driving the hydraulic control unit to execute a corresponding oil path action, and receiving and processing the cavity pressure of the runner hub, the servomotor stroke and the blade rotation angle parameter which are acquired in real time so as to automatically complete the runner test item specified by the national standard. The test process is automatically executed through the main controller, and frequent manual operation is replaced by simple clicking, so that the labor intensity of operators is greatly reduced.

The invention provides a servo motor and a semiconductor device. The servo motor includes a motor and an encoder. A shell of the motor is provided with a first vent hole. A stator of the motor is arranged in the shell. A rotating shaft of the motor is arranged in the shell and rotates under the electromagnetic action of the stator. The rotating shaft is partially hollow and is provided with a second vent hole for air to circulate in the first vent hole and the second vent hole. The encoder is arranged in the shell, detects rotation information of the motor and encodes the rotation information into a signal. And the accuracy and the service life of the encoder are maintained by the independent sealed space. In addition, the vent hole of the motor can be connected with a vacuumizing device to generate a negative pressure adsorption effect.

The invention belongs to the technical field of hydraulic systems, and particularly relates to an inner leakage diagnosis system and method based on a hydraulic system accident pressure distributing device. Based on a hydraulic system accident pressure distributing device inner leakage diagnosis system, a pressure oil tank is connected with a main pressure distributing system oil source pipeline, the main pressure distributing system oil source pipeline is sequentially connected with a main oil supply source valve, an isolation valve, a speed regulating system main distribution service valve and a main pressure distributing valve, and the main pressure distributing valve is connected with a first accident pressure distributing valve and a second accident pressure distributing valve through pipelines. The first emergency distributing valve is connected with a segmented closing valve through a pipeline; the device further comprises a first servomotor, a second servomotor and a control ring. The accident pressure distribution oil source pipeline is connected with a speed regulator accident oil source valve; the speed regulator control pipeline is connected with a speed regulator control oil source valve; the mechanical over-speed oil return pipe is connected with a sectional closing lock ingot over-speed oil return valve; and the mechanical over-speed oil supply pipe is connected with a sectional closing lock ingot over-speed control oil source valve. The invention provides a rapid inner leakage diagnosis system and method based on a hydraulic system accident pressure distribution device.

A ball launching net post system for ball courts integrates automated ball launching, environmental monitoring, net tension control, and weatherproofing within a pair of multifunctional net posts. Each net post houses a ball launcher comprising opposing wheels driven by servomotors to propel balls through apertures in the post. Controllers integrated into each net post monitor court humidity, wind, and weather conditions while enabling remote operation of the ball launchers via smartphone or smartwatch. A weatherproofing system enhances ventilation and prevents water intrusion, safeguarding internal components. The system includes a net tension mechanism and height sensor, connected to the controllers, to maintain net height automatically. Adjustable ball trajectories are achieved by varying launcher wheel speeds and housing tilt angles. The ball launching net post system maximizes court space, improves practice versatility, and increases equipment durability by transforming passive net posts into intelligent, active court infrastructure.

The utility model discloses a canvas is spun with cotton feed adjusting device, including frame, cotton feed board and cotton feed roller, one end of cotton feed board is fixed on the frame through the pin shaft, cotton feed board swings with the pin shaft as fulcrum, the frame is set up with the through slot, and the inside of through slot is provided with the connecting rod of through -going, and one end of connecting rod is hinged with cotton feed board through the hinge, the inner wall of through slot is seted up with the limiting slot. In the utility model, by adopting the mode of servo motor drive adjusting screw rod and moving, replace the manual rotation screw and adjust the interval of the holding area of cotton feed board and cotton feed roller, can greatly improve the adjustment accuracy, reduce the error, ensure that the holding area of cotton feed board and cotton feed roller is invariable between the holding area between cotton feed board and cotton feed roller under the long -time work, can stably transport the sliver to the capture range of the carding roller, improve the carding efficiency of carding roller.

The utility model relates to the technical field of injection molds, in particular to a four-part mold sole injection mold which comprises a four-part mold main body and a movable mold plate arranged on the four-part mold main body, a plurality of through holes are formed in the movable mold plate, and a material ejecting assembly comprises a servo motor fixedly installed on the side face of the movable mold plate. A lead screw is fixedly installed at the tail end of an output shaft of the servo motor, a fixing rod is fixedly installed on a shell of the servo motor, a guide rail is fixedly installed at the end of the fixing rod, the lead screw is in threaded connection with a threaded sleeve, the guide rail is sleeved with the threaded sleeve, the threaded sleeve is in sliding connection with the guide rail, and the threaded sleeve is in sliding connection with the through hole. A sliding groove is formed in the side face of the guide rail, an arc-shaped groove is formed in a sleeve body at the rear end of the threaded sleeve, a fastening screw is connected into the arc-shaped groove in a threaded mode, a limiting protruding column is fixedly installed at the end of the fastening screw, and the limiting protruding column is inserted into the sliding groove and connected with the sliding groove in a sliding mode. According to the utility model, the ejection demolding operation is convenient, and the occupied space is reduced.

The invention relates to a self-contained valve closure device comprising a case (1) that can be secured to the body of a valve and that immobilises a servomotor (4) that can be connected to the valve shaft (2) by means of a coupling element (5). The outside of the case (1) has a series of sensor plates (3) that detect the presence of liquid. The device also comprises a microprocessor (6) connected to the servomotor (4), such that the microprocessor (6) is configured to activate the servomotor (4) in the closure direction of the valve when a plate (3) detects liquid.

The utility model relates to the technical field of building paint production, and discloses a batching device for building paint production and processing, according to the scheme, the batching device comprises a bottom plate, the top side of the bottom plate is fixedly connected with a U-shaped frame, the inner walls of the left side and the right side of the U-shaped frame are movably connected with the same semicircular configuration box, and the left side of the U-shaped frame is fixedly connected with a motor; an output shaft of the motor is fixedly connected with a stirring rod, the semicircular configuration box is rotatably connected with the outer side of the stirring rod, the outer side of the semicircular configuration box is fixedly connected with a semi-gear ring, the top side of the bottom plate is slidably connected with a toothed plate, the toothed plate is in meshed connection with the semi-gear ring, and the rear side of the bottom plate is fixedly connected with a servo motor. By arranging the U-shaped frame, various raw materials of paint are poured into the semicircular configuration box, when the output shaft of the motor drives the stirring rod to rotate, the various raw materials of the paint can be effectively stirred and mixed, and compared with a suspended installation mode in a comparison file, the stability of batching can be effectively ensured, and application and popularization are facilitated.

A patient support apparatus having a central dual control system of casters with an actuating pedal. Two opposite casters are connected by a control shaft with hexagonal cross section. Both control shafts are mutually coupled via a connecting member to a linkage rod. A servomotor with a rack is coupled to the linkage rod. The servomotor is configured to change a position of the rack of the servomotor and thus change a position of the central dual control system of casters upon manual change of position of the actuating pedal and / or upon electrical activation of the servomotor to change a position of the actuating pedal to another position of the central dual control system of casters.

In the synchronization control method, time synchronization based on a reference time is performed; a processor that executes a first process in which a center time of an exposure period during which the camera is exposed is determined on the basis of the reference time, and an image of a subject is captured by exposure on the basis of the determined center time, and a second process in which the position of the servo motor at the center time is acquired on the basis of the reference time; detecting the subject from the frame on the basis of the position of the servo motor at the central time and the frame in which the subject is captured; and driving a servo motor based on the detected position of the subject.

A cognitive assessment and stimulation method and a robotic platform for hippotherapy that comprises a structure comprising at least a high torque servomotor, and an articulated mechanism that simulates the horse's head, at least two load cells placed on the articulated mechanism of the structure, for controlling direction and speed, at least one seat module, that comprises at least one inertial sensor of posture intended to be placed on the patient to determine his / her posture, and one or more load cells placed on the seat to determine the load distribution thereon; and at least two pressure sensors for speed control and that further comprises a temperature control module, which allows temperature control, a visual stimulation sub-module and / or an auditory stimulation sub-module, a crane type module coupled to a harness comprising some stirrups which allow the transfer of the patient and also providing control of weight on the platform and give security to the patient, avoiding the risk of falling.

The invention relates to the technical field of lens machining, in particular to a manual and pedal vertical double-grinding-wheel numerical control core taking machine which adopts a vertical double-grinding-wheel mechanism, one grinding wheel can be selected at will for machining, the double grinding wheels can be adopted for rough grinding and accurate grinding, and grinding can be conducted at the same time. The grinding wheel mechanism adopts a guide rail sliding block independent mechanism, is stable in precision and can be finely adjusted; the upper side lens shaft adopts the design concept of a guide rail sliding block, the grinding precision efficiency is improved through the design concept, the precision is greatly improved, the coaxiality can be finely adjusted, and abrasion is not prone to occurring. Moreover, a servo hollow motor, a lens main shaft and a servo motor are directly connected, a camera of an optical centering or laser centering instrument can directly irradiate the center of the lens to confirm whether core shift exists or not, and then manual adjustment and confirmation are carried out; when a large-diameter lens is manually loaded, the lens can be held by two hands, the upper lens shaft is lifted by stepping on the pedal plate, and the machine can be operated by one person.

When a substrate is held by a first hand, a servomotor is operated to move each guide to an outer peripheral surface of the substrate. When a tactile sensor detects that each guide abuts on the outer peripheral surface of the substrate, the servomotor adjusts a biasing force by each guide to the outer peripheral surface of the substrate according to the shape of the substrate. Therefore, the grasping force can be adjusted according to the shape of the substrate such as warpage and a thickness of the substrate. As a result, it is possible to prevent the substrate from being damaged during transportation regardless of the shape of the substrate.

The utility model belongs to the technical field of electric power testing, and particularly relates to a DCC capacitor switching device for electric power testing, which comprises a rack, a sheath, three groups of switching electrifying mechanisms, a copper rod and a connection relation thereof. According to the invention, 'switching of three groups of capacitors' is converted into'switching of three electrified ball rods', the copper rod can only be in contact with one of the three electrified ball rods, and connection switching of the three electrified ball rods is completed by means of rotation of the sheath, so that capacitance switching of the three groups of capacitors is completed; only one servo motor is needed, multiple driving sources are not needed, the operation mode is greatly simplified, and the failure rate is reduced; meanwhile, the overall structure is compact, structural components are reduced, correspondingly, the size and weight of the overall structure are reduced, and practical application is facilitated.

The application discloses a casting equipment and process for producing a super-large screw-down nut blank for a metallurgical rolling mill, and relates to the technical field of nut blank casting. The equipment comprises a mold, a connecting pipe is installed on the inner wall of the left end of the mold, a central cavity is connected to the right end of the connecting pipe, a block one is installed on the outer wall of the central cavity, a protection frame is installed on the outer wall of the block one, a connecting rod one is installed on the outer wall of the protection frame, an installation column is connected to one end of the connecting rod one, a worm gear is sleeved on the outer wall of the installation column, and the worm gear is sleeved on the outer wall of a block two. The mold is arranged, the telescopic rod one is shortened to pull a group of protection frames to move backward, the micro servo motor one in another group of protection frames is started to drive the worm to rotate, the worm gear is driven to rotate, the block one penetrating through the outer wall of the worm gear is driven to rotate, the central cavity is driven to move through the block one and the block two, the position of the central cavity is fine-tuned according to the blank casting requirements and the change of the gravity center of the mold, the casting precision and the casting stability are improved, and the casting precision and the casting stability are improved.

The invention relates to the technical field of unmanned aerial vehicle logistics, and discloses an unmanned aerial vehicle distribution parking apron multidirectional material pouring device which comprises a parking apron body and a cabin door installed at the top of the parking apron body, logistics cabinet bodies are arranged on the two sides of the parking apron body, and a goods receiving unit is arranged in the parking apron body. A transfer unit is further arranged in the parking apron body, and the transfer unit comprises a movable frame, a lifting frame and a multi-stage telescopic plate frame; according to the parking apron multi-directional material pouring device for unmanned aerial vehicle distribution, the transfer frame and the suction cup mechanism are arranged in the movable frame and above the lifting frame, so that the transfer frame and the suction cup mechanism are arranged in the movable frame; and a driving unit composed of a servo motor, a rotating shaft, a synchronous wheel, a belt, a meshing gear and a rack is arranged, so that the device can bear and transfer a container from the bottom through a multi-stage telescopic plate frame and can grab the container from the top through a suction cup mechanism, and the number of goods transferred at a time is remarkably increased.

The utility model discloses a shuttlecock head gluing device which comprises a working table, the outer wall of the bottom of the working table is rotatably connected with a base, the working table is round, through holes are evenly formed in the top of the working table, and the inner walls of the through holes are rotatably connected with shuttlecock clamping seats through bearings. A glue applying assembly is fixedly installed in the center of the top of the workbench and comprises a glue barrel, the output end of the glue barrel is fixedly connected with a glue injection pipe, and the bottom end of the glue injection pipe controls the glue injection pipe to apply glue to badminton heads through a first electric telescopic rod. According to the badminton ball gluing device, the workbench capable of being rotationally adjusted is arranged, and the plurality of badminton ball clamping seats are synchronously driven by the servo motor to rotate, so that when the badminton ball clamping seats rotate, the glue injection pipes can quickly and uniformly glue the joints of ball heads and feathers of badminton balls in a circumferential manner, and the working efficiency is improved.

An adjusting element for an air guiding element of a motor vehicle, wherein the air guiding element (2) is adjustable in its position relative to the motor vehicle (3) between a first position and a second position, wherein, for adjustment purposes, the adjusting element (1) is operatively connected to a kinematic system of the air guiding element (2), and wherein the adjusting element (1) comprises a servomotor (4) and an adjusting shaft (5), which is operatively connected to the kinematic system, which are at least partially accommodated in a housing (6) of the adjusting element (1), and wherein a gear (9) is formed between the adjusting shaft (5) and the adjusting motor (4), wherein the gear (9) has at least one gear wheel (13; 15) which is rotatably mounted in the housing (6) by means of a bearing shell (16), characterized in that, in order to reduce play in the gear (9), the bearing shell (16) is accommodated in the housing (6) in an at least partially axially movable and at least partially preloaded manner,wherein the gear wheel (13) is slide-mounted, and wherein the bearing shell (16) comprises a first bearing shell element (17) and a second bearing shell element (18), wherein the gear wheel (13) is arranged between the first bearing shell element (17) and the second bearing shell element (18), wherein the first bearing shell element (17) or the second bearing shell element (18) is accommodated in the housing (6) so as to be axially movable, and a spring element in the form of a compression spring is designed for prestressing, which spring element is designed to exert an axial force (19) on the first bearing shell element (17) and presses the first bearing shell element (17) against the first gear wheel (13), and wherein the gear (9) is a two-stage gear, and wherein a secure positioning of the air guiding element (2) is supported by an efficiency-optimized gear (9), which is characterized in particular by an increase in the frictional resistance of at least one of the two gear stages (10, 11). becomes.,

The present invention relates to the technical field of grinding devices, and specifically to a grinding device for grinding the edges and corners of mechanical parts, comprising a mounting frame, a receiving groove provided in the center of the bottom of the mounting frame, and a mounting groove provided on one side above the mounting frame; and further comprising: an adjustable bending grinding component, movably arranged in the receiving groove; the adjustable bending grinding component is driven by a servo motor to rotate under the drive of a connecting shaft, so that the mechanical parts attached to the adjustable bending grinding component can be ground, and the air pressure generated by the air pump is transmitted to the adjustable bending grinding component through an air pipe, so that the bending amplitude of the adjustable bending grinding component can be effectively adjusted. By changing different bending amplitudes, the edges and corners of different mechanical parts can be ground, and at the same time, the grinding efficiency of the edges and corners and the entire surface of the mechanical parts can be improved through linear grinding, thereby improving the flexibility of part grinding.