83results about How to "Reduce adjustment" patented technology

The invention belongs to the field of network security, and discloses a defense method for zero dynamic attacks of a wind power generation system, which comprises the following steps: constructing a mathematical model of the wind power generation system; a gain scheduling PI controller and electronic adjustable passive elements are introduced into the wind power generation system, and the electronic adjustable passive elements are a controllable inductance module and a controllable capacitance module and are used for adjusting inductance and capacitance of the system; designing a zero-dynamic attack signal, injecting the zero-dynamic attack signal into the system, and analyzing destructive factors of the zero-dynamic attack; defending the designed zero-dynamic attack signal, dynamically adjusting and optimizing the parameter value of the element adjustment coefficient so as to adjust the inductance and capacitance, converting an unstable zero point into a stable zero point, weakening the destructiveness of the zero-dynamic attack, and realizing defending. According to the method, the system can keep stable operation in a complex environment, the dependence limitation in the prior art is overcome, and the defense robustness is enhanced.

The invention relates to the technical field of tank forming, in particular to transformer oil conservator tank forming equipment. A base is included; a bearing plate is installed on the upper end face of the base in a sliding mode through an electric sliding block, a blocking plate located on the left side of the bearing plate is installed on the left end face of the base, a butt joint mechanism is arranged on the upper end face of the bearing plate, and a supporting mechanism used for supporting a circular pipe is arranged between the blocking plate and the bearing plate. According to the fixing mechanism, the circular pipe is straightened through the fixing plate so as to ensure the butt joint accuracy, the circular pipe is secondarily limited through cooperation with the extrusion part so as to improve the moving butt joint stability of the circular pipe, and the driving part can drive the fixed circular pipe to rotate circumferentially, so that adjustment during welding of the circular pipe is reduced, the welding efficiency is improved, and the welding quality of the circular pipe is improved. And the stop plate abuts against the end face of the rightmost circular pipe, so that the position of the welding head is adjusted, it is guaranteed that the welding head is relatively perpendicular to a welding seam, and the welding quality and strength are further improved.

The invention discloses an introduced-variety pig 10K SNP liquid chip based on targeted capture sequencing and application, and belongs to the technical field of biomolecular breeding. Target SNP sites are collected, selected and filtered, an SNP site set with comprehensive performance is screened out, a probe is designed on the basis of the SNP site set, the introduced variety pig 10K SNP liquid phase chip is further prepared, the SNP sites of the chip have the characteristics of uniformity, polymorphism, compatibility, stability and functionality, pig genomes can be covered to the maximum extent, and the detection sensitivity is high. Meanwhile, the selection of pig genomes can be greatly reduced, especially the cost of early selection of variety pigs is reduced, in addition, the selection efficiency and filling accuracy of chip sites filled to more than 50K can be ensured, and the requirements of subsequent variety identification, lineage analysis, genetic relationship identification, genome selective breeding and whole genome association analysis are met.

The invention discloses a watermark embedding method and device, a watermark recognition method and device, electronic equipment and a storage medium. The embodiment of the invention relates to the technical fields of artificial intelligence, cloud technology and the like. The watermark embedding method comprises the following steps: acquiring a frequency domain coefficient sequence of a target image block in a to-be-processed image under a single-color channel; selecting a target frequency domain coefficient sequence from the frequency domain coefficient sequences; determining a reference image block under the single-color channel according to the target frequency domain coefficient sequence and sub-watermark information corresponding to a target image block in the watermark information; and obtaining a watermark image according to the target image block and the reference image block corresponding to the target image block under the single-color channel. In the application, the target frequency domain coefficient sequence in the preset position range in the to-be-processed image is adjusted to obtain the watermark image, the adjustment amount and the adjustment amplitude of the frequency domain coefficient of the to-be-processed image are relatively low, the influence of watermark information on the to-be-processed image is reduced, and the image quality of the obtained watermark image is improved.

The present application relates to the technical field of digital professional audio equipment, and in particular to a mixing console tuning management method, system, device and storage medium. The present application first obtains the audio signal and the user's mixing selection information to determine the overall mixing numerical information; then, by analyzing the propagation distance, targeted sound parameters are generated for each area, which can better simulate the real sound field, make the sound effect in different areas more natural and realistic, and achieve more refined spatial control; during the actual playback process, the method obtains the real-time sound field monitoring data of each partition, and compares it with the preset ideal sound field model. If the deviation exceeds the threshold range, the sound field optimization is triggered, and the mixing parameters of each audio track are adaptively adjusted according to the optimization feedback, so that the final sound field effect is close to the ideal state, thereby comprehensively improving the efficiency and quality of automatic tuning.

The invention discloses a distribution line defect positioning method based on beam imaging, and the method comprises the following steps: 1, enabling an unmanned plane to carry a wireless acoustic imager and a camera, and enabling the wireless acoustic imager to be provided with a microphone array; step 2, collecting array sound wave signals of the distribution line to be detected through a microphone array; the camera collects video pictures in real time; step 3, performing time delay compensation on the array sound wave signals based on the prediction model; step 4, analyzing sound source distribution data to carry out defect positioning; and 5, fusing the sound source distribution data and the video picture to generate a sound image cloud picture containing the sound source distribution data and the video picture. The structure is simple, the design is reasonable, in the process of outputting the time delay predicted value of the array sound wave signal based on the prediction model and constructing the spatial spectrum according to the covariance matrix, firstly, singular value decomposition is performed on the covariance matrix, the calculation process is simplified, the calculation efficiency is improved, the high calculation requirement in real-time processing is further met, and the use effect is good.

The invention provides a following control method, device and equipment for a supply ship of an electric ship, and relates to the technical field of ship battery replacement control, and the method comprises the steps: receiving the ship position and operation data of a ship to be subjected to battery replacement; generating a first position control parameter based on the ship position; controlling the supply ship to go to the ship position based on the first position control parameter; when the distance between the current position of the supply ship and the ship position is smaller than a configured distance threshold value, state control parameters are generated based on the operation data; and controlling the advancing state of the supply ship based on the state control parameter. According to the method, the state of the supply ship is controlled according to the state of the ship to be subjected to battery replacement in the battery replacement process, so that the ship to be subjected to battery replacement can receive the battery pack sent by the supply ship under the condition that the operation state of the ship to be subjected to battery replacement is not changed, such as no deceleration and no stop; the power conversion efficiency is improved, the power conversion cost is reduced, the flexibility is enhanced, and the power conversion safety and reliability are improved.

The invention discloses an inverter shock-free grid connection method based on comprehensive control of a virtual synchronous generator, which belongs to the technical field of inverter control and specifically comprises the following steps of: setting a monitoring period T and acquiring an active power value and an active power instruction value of a grid-connected inverter in real time; calculating a difference value between the active power value and the active power instruction value, taking the difference value as target data, obtaining target data corresponding to all time points, taking the time points as abscissas and the target data as ordinates, generating a point location map, and fitting the point location map to obtain a target curve; acquiring a starting point, an ending point, a peak point and a valley point in the target curve and taking the starting point, the ending point, the peak point and the valley point as feature points, calculating a slope k between two adjacent feature points, calculating a change coefficient K according to the slope, and if K is greater than or equal to a preset threshold value, correcting the control parameters; according to the invention, the control parameters are adjusted by monitoring the operation state of the inverter, and the phenomena of overreaction and oscillation caused by the fluctuation of the power grid are reduced.

The invention discloses a resource scheduling method and device of a kubernetes cluster, a storage medium and electronic equipment. The method comprises the steps that in response to a resource scheduling request, a first persistent volume declaration and a second persistent volume declaration of a predefined type are created, the first persistent volume declaration and the second persistent volume declaration are associated with a storage pool, the first persistent volume declaration is a native persistent volume declaration of a kubernetes cluster, and the second persistent volume declaration is a non-native persistent volume declaration of the kubernetes cluster. Capacity configuration information is set in the first persistent volume declaration and the second persistent volume declaration respectively, and the second persistent volume declaration supports increase and decrease of the capacity configuration information; associating a pre-created pod node with the first persistent volume declaration; and creating a storage volume based on the first persistent volume declaration, and mounting the storage volume to the pod node. A new Kubertes custom resource type is introduced, a second persistent volume declaration of a predefined type is created, the second persistent volume declaration supports increase adjustment and decrease adjustment of capacity configuration information, and capacity expansion and capacity reduction of the created storage volume are further supported.

The utility model relates to the technical field of sanding machine equipment, and discloses a sanding machine with a guiding and feeding function, which comprises a support frame, a first conveying belt is arranged on the inner side of the support frame, and the top of the support frame is fixedly connected with a sanding machine body. Under the action of the lead screw, the connecting sleeve, the first control plate and the second control plate, the adjusting plate drives the baffle to ascend and descend, conveying and feeding are facilitated, meanwhile, the feeding port and the discharging port of the sanding machine body are shielded during polishing, and the polishing effect is improved. Dust collection operation is carried out under cooperation of a first dust collection pipe, a second dust collection pipe, a fan and the like, dust, impurities and the like which are blown out to the outside are effectively reduced, centering adjustment is conveniently carried out on materials on the first conveying belt under the action of a vertical plate, a limiting plate, a threaded rod and the like, frequent manual adjustment is not needed, guiding feeding is promoted, operation is convenient and labor-saving, and the production efficiency is improved. And meanwhile, material deviation is reduced, and machining precision is ensured.

The utility model discloses a two -dimensional code appearance quick positioning device, include: two -dimensional code appearance, the top of two -dimensional code appearance is provided with glass board, the glass board top is provided with support, the end of support is provided with light source, the light source is irradiated to the glass board to form the light spot area, the light spot area is two -dimensional code placement position. Two -dimensional code appearance quick positioning device of the utility model, the light of the light source on the support irradiates to form the light spot area on the glass board, and the light spot area is two -dimensional code placement position, so quick positioning can be formed, and the process of reducing the adjustment two -dimensional code position.

This application provides a rigid and stable welding fixture for bolster plates, relating to the fields of rail transit and machinery manufacturing. It includes a base and a pair of upright plates mounted on the base. The left upright plate has an opening, and the right upright plate has a receiving groove, the receiving groove being opposite to the opening. A support plate and an auxiliary plate are positioned between the pair of upright plates. A cover plate is located on top of the support plate, and the bolster plate is located at the bottom of the auxiliary plate. One side of the support plate passes through the opening, and the other side of the support plate is located in the receiving groove. A cable is located at the bottom of the support plate, one end of which is connected to the bottom of one side of the support plate, and the other end of which extends along the length of the support plate and passes through the receiving groove. The other end of the cable is wound around a roller. This application has the characteristic of being able to counteract the welding stress generated during welding, thereby improving the welding effect of the bolster plate on the cover plate and preventing product deformation.

The invention discloses a laser output optical device, a laser, equipment and a method. The laser output optical device comprises an output optical fiber, an optical waveguide and an optical output head which are connected in sequence, the output optical fiber is used for outputting point ring light beams, a cladding layer, wrapping the second fiber core, of at least partial area, close to the output optical fiber, of the optical waveguide comprises a second conical structure, and the cross section of the second conical structure is annular. The outer diameter of the second conical structure is gradually increased in the light beam transmission direction, and the second conical structure is used for adjusting the light path of the point ring light beam so as to adjust the divergence angle of inner and outer ring light beams. And the optical output head is used for outputting the light beam adjusted by the optical waveguide. The pre-modulated light from the output optical fiber is accurately regulated and controlled, the divergence angle of the output light is adjusted, the light beam quality is improved, and meanwhile the device has the advantages of being simple in structure, low in cost and high in stability.

The invention discloses a bearing capacity self-adaptive scheduling system and method for a high-proportion new energy power grid, and relates to the technical field of power system scheduling. The system adopts a three-layer structure: a multi-dimensional bearing capacity state generation layer constructs a power grid digital twinborn body which can be updated in a rolling manner, models bearing capacity into a multi-dimensional bearing capacity state variable and maps the multi-dimensional bearing capacity state variable into a bearing capacity constraint parameter, and constructs an operation feasible region; a rolling scheduling optimization decision-making layer establishes a rolling scheduling optimization model of cross-time scale coupling under the uncertainty of new energy output, and generates a scheduling scheme meeting the operation feasible region constraint and the consistency constraint; and the online safety check and feedback layer performs online safety check by adopting an agent model based on the digital twinborn body, outputs a corrected bearing capacity constraint parameter to update the operation feasible region and trigger re-solving, and issues an execution instruction and writes back operation feedback for continuous updating after the check is passed. According to the method, the real-time performance and the scheduling performability of the security boundary description can be improved, and the new energy consumption capability is improved.

The utility model discloses a massage device for adjusting seat side plates through gesture recognition, and relates to the field of massage devices.The massage device comprises a rack, side plates, a side plate adjusting actuator, a motion sensor and a controller, the side plates are arranged on the left side and the right side of the rack respectively, and the motion sensor is arranged on the side plate adjusting actuator; the side plate adjusting actuator is connected to the side plates and the rack, and at least one side plate can move and / or rotate relative to the rack through the side plate adjusting actuator; the motion sensor is used for detecting motion data of a hand of a user; the controller comprises a central processing unit and a gesture recognition mechanism, and the motion sensor is electrically connected to the input end of the central processing unit; the recognition end of the central processing unit is electrically connected to the gesture recognition mechanism, and the output end of the central processing unit is electrically connected to the side plate adjusting actuator. The massage device has the advantages that the side plates are convenient to adjust and not prone to being touched by mistake, and the massage device is more attractive in appearance.

The utility model relates to a self-adaptive adjusting support for a fluid pipeline, which belongs to a supporting device and comprises a base, supporting rods are fixed at four corners of the base, a supporting plate is fixed among the four supporting rods through nuts, a through hole is arranged on the supporting plate, and a protective cover I is arranged on the through hole. A hydraulic jack is fixed to the base, an ejection screw of the hydraulic jack penetrates through the through hole to be arranged in the protective cover I. A working platform is fixed to the end of the ejection screw, a spring is arranged on the working platform, a supporting column is arranged at the upper end of the spring, and an arc-shaped supporting frame is fixed to the top end of the supporting column. When the device is used, when the supporting ground is upwards bulged or downwards sunken due to frost heaving and the like, the spring can play a buffering role, and the situation that the pipeline of the supporting part of the support bears upward or downward force due to the fact that the supporting height of the support is increased or decreased due to the fact that the height of the ground is increased or decreased can be prevented; the situation that the pipeline is broken due to deformation of the pipeline is avoided; the height of the support can be adjusted through the hydraulic jack to change the deformation range of the pipeline, and the service life of the pipeline is prolonged.

The invention relates to the technical field of moxibustion beds, and discloses a moxibustion bed and a use method thereof.The moxibustion bed comprises a fixing frame, a bed plate is fixedly mounted at the top of the fixing frame, and a translation assembly is movably mounted in the fixing frame. During use, a second driving motor is started, an output shaft of the second driving motor drives a third lead screw to rotate, and due to the limiting effect of a third guide sliding rod on a threaded translation block, the threaded translation block is connected to the outer surface of the third lead screw in a threaded and sleeving mode; when the threaded translation block moves back and forth, the flexible metal net is driven to move through the connecting rod, when the surface of a moxa stick in the moxibustion disc is covered with much ash, the flexible metal net is driven to move horizontally at the top of the moxibustion disc through the ash removal assembly, and the flexible metal net scrapes the ash generated by combustion of the surface of the moxa stick; the first driving motor is combined to realize the vertical lifting of the moxibustion disc, so that the distance between a moxa stick in the moxibustion disc and the moxibustion part of the human body is changed, and the effect of controlling the moxibustion temperature is achieved.

The utility model discloses a kind of fabricated building PC components. Including upper component and lower component, adjacent upper and lower component are connected by bolt. Upper component two ends are equipped with first lug and second groove, lower component end portion is equipped with second lug and first groove, and first lug and first groove, second lug and second groove shape are matched, realize accurate pre-positioning;The surface of the second lug of lower component is equipped with embedded hole, embedded hole is equipped with embedded part containing embedded nut and compression spring, the second groove of upper component is equipped with through-hole, bolt is sequentially connected with embedded nut after passing through through-hole, compression spring is compressed and generates sustained pre-tightening force when tightening bolt. The utility model is embedded by lug and groove to realize quick positioning, and the bolt connection structure of spring pre-tightening is combined to improve connection firmness, effectively solve the problem that existing PC component connection positioning is poor and easy to loosen, convenient to install and suitable for fabricated building construction.

The invention provides a log message processing method, a log recorder, a system and a storage medium, and belongs to the technical field of equipment development, and the method comprises the steps that user equipment receives a first filtering condition input by a user, generates a first log acquisition instruction based on the first filtering condition, and sends the first log acquisition instruction to the log recorder; the monitored equipment generates a log message based on a preset message structure, the log message comprises a message filtering flag bit, and the log message is sent to a log recorder; and the log recorder receives the first log acquisition instruction and the log message, sets a filtering value based on a first filtering condition in the first log acquisition instruction, acquires a first log message of which the message filtering flag bit is matched with the filtering value from the received log message, and sends the first log message to the user equipment. According to the method, the functions related to the log demand are set in the log recorder, so that the adjustment process of the monitored equipment in the development process is reduced, and the development difficulty of the equipment is reduced.

The corrugated carton folding and pressing device comprises a folding and pressing table, a first sliding groove, a supporting frame, a connecting frame, a pressing and folding wheel, an electric telescopic rod and a rotating shaft, the first sliding groove is formed in the folding and pressing table, the supporting frame is arranged in the first sliding groove, first threaded rods are arranged at the four corners of the supporting frame, the connecting frame is arranged in the supporting frame, and the pressing and folding wheel is arranged on the connecting frame. A second threaded rod is arranged in the connecting frame, and a first connecting block is arranged on the second threaded rod. A plurality of groups of pressing and folding structures composed of first connecting blocks and pressing and folding wheels which are driven to move through rotation of second threaded rods are arranged in a connecting frame in a supporting frame, so that the corrugated carton folding and pressing device can set a plurality of different pressing marks in advance by rotating second threads, and adjustment of workers on corrugated paper or the pressing and folding wheels is reduced; and therefore, the working efficiency is improved.

The utility model discloses a knife tool module is changed with chopping board polishing, relates to chopping board polishing technical field, include: the frame, be located the assembly component of frame top, and the switching tool of staggered and symmetrically installed opposite of frame, the switching tool includes two pivot, two the opposite end of pivot fixed with two cross installation frame of staggered distribution, two cross installation frame through the opposite end rotation of a plurality of groups of pin shaft and a plurality of polishing module one -one assembly. The utility model discloses through always with horizontal state switching position's a plurality of polishing module, collocation different kinds of polishing mould, can realize the different polishing requirement of chopping board or the polishing of different kinds chopping board, and polishing mould operating end always faces down and horizontally, not only can ensure that polishing effect is uniform, surface quality is high, secondly reduces the time of adjustment and rework, guarantees the fluency of polishing, improves polishing efficiency.

The embodiment of the invention provides a contract processing method and device based on a block chain, equipment, a medium and a program, and relates to the field of block chains. The method comprises the steps of obtaining a business type of a smart contract corresponding to a target contract in a block chain; and according to the business type, condition adjustment parameters of the performance condition of the smart contract are acquired, and the condition adjustment parameters comprise at least one of the following parameters: a market adjustment parameter, a business rule adjustment parameter, a supply and demand adjustment parameter, a logistics adjustment parameter and a financial adjustment parameter. And adjusting a basic performance condition of the smart contract based on the condition adjustment parameter to obtain an adjusted performance condition of the smart contract. According to the method provided by the invention, the efficiency and accuracy of adjusting the performance condition of the contract based on the block chain are improved.

In the support structure of the fuel injection valve (I), a snap projection (21) which is snap-fitted to the outer peripheral surface of the fuel introduction cylinder portion (4) received in the notch (19) of the base plate (15) is formed on the inner side surface of the notch (19). In the state where the fuel injection valve (I) is mounted to the engine (E), the contact frictional force of the elastic sheet (16) with respect to the base plate (15) increases due to the increase in the elastic rebound force of the elastic sheet (16), so that the snap-fitting force of the snap projection (21) with respect to the fuel introduction cylinder portion (4) is automatically increased.

The utility model discloses a sealing ring butt joint welding device, including conveying assembly, cutting assembly, turnover subassembly and welding assembly, and cutting assembly includes mounting bracket, and the fixed mounting of inlet end has on mounting bracket, and the fixed mounting of cutting mechanism has on the side fixed mounting of inlet end away from conveying assembly of mounting bracket, and the fixed mounting of distance slide rail and ball screw mechanism has on mounting bracket, and the fixed mounting of clamping piece has on distance slide rail, and clamping piece fixed mounting is in the ball screw mechanism output, and clamping piece includes two clamps, and the rotatable mounting of support piece has on mounting bracket, and the clamp fixed mounting of L type block has on the bottom side. The utility model discloses through setting up clamping piece on ball screw mechanism and distance slide rail, control clamping piece on ball screw mechanism and the sliding distance of distance slide rail, thereby control the length of the sealing strip of cutting, and then control the size of sealing ring.

The present invention relates to the technical field of automatic car washers, and specifically to a hot air blower for car washers. The hot air blower for car washers comprises a hot air blower and a blowing device, wherein the air outlet device comprises a cleaning liquid injection part and a blowing part, wherein the bottom of the cleaning liquid part is through-connected with the middle of the blowing part, a first air outlet is provided at the lower end of the blowing part, a second air outlet is connected to the lower side of the blowing part, an air volume adjustment component is provided on the first air outlet, and a closing component is provided on the second air outlet. By connecting the blowing device to the hot air blower, and connecting the first air outlet and the second air outlet at the lower part of the blowing device, the air outlet area of ​​the first air outlet can be adjusted, and the excess water on the surface of the car is blown away through the first air outlet, and the remaining water on the surface of the car is dried through the second air outlet, which can greatly improve the drying efficiency of the car washer.

The utility model relates to the technical field of building construction, in particular to a steel bar conversion connecting device which is used for connecting two steel bars and comprises a first sleeve, a bottom sealing ring, an adjusting ring, a fixing sleeve, a locking nut, a threaded connecting rod and a connecting sleeve. The connecting sleeve is connected with the other reinforcing steel bar, a clamping table is arranged at the other end of the connecting sleeve, the threaded connecting rod comprises an end and a connecting part, the end of the threaded connecting rod is installed in the connecting sleeve, and the end of the threaded connecting rod is limited by the clamping table and the reinforcing steel bar to move within a preset length range in the connecting sleeve; the connecting part is sequentially sleeved with a locking nut, a fixing sleeve, an adjusting ring and a bottom sealing ring. When the threaded connecting rod is used and the threaded connecting rod is not connected, the connecting part of the threaded connecting rod can move in the connecting sleeve along with the end head, part of the connecting part retracts into the connecting sleeve, and it is guaranteed that enough space does not interfere with the threaded connecting rod when the threaded connecting rod is not connected.

The invention relates to an automatic width adjusting device, method and system for a skin taking machine, and relates to the technical field of medical instruments.The automatic width adjusting device comprises a skin taking knife body, a blade is installed on the skin taking knife body, a skin taking part is formed on one side of the blade, and a bottom plate is arranged on the skin taking knife body; the two bottom plates are oppositely arranged on the side, close to the skin taking part, of the blade. A driving assembly is arranged on the dermatome body and drives the two bottom plates to slide towards the sides close to each other or away from each other. An adjusting rod is rotationally installed on the side, close to the skin taking part, of the skin taking knife body, a rolling wheel is rotationally installed at one end of the adjusting rod, and an encoder is installed in the rolling wheel and used for measuring the angular displacement of the rolling wheel. The cut healthy skin can be better attached to the burn wound skin defect position, waste of the healthy skin in the skin grafting repair operation is reduced, and meanwhile damage to the healthy skin taking position is reduced.

The invention relates to the technical field of sound barrier installation, in particular to a nonmetal sound barrier transfer installation lifting appliance. According to the technical scheme, the lifting appliance comprises a lifting appliance supporting assembly and two linkage transmission assemblies installed on the two sides of the lifting appliance supporting assembly, and supporting type tray assemblies which conduct corresponding clamping according to the shapes of different types of nonmetal sound barriers are installed below the linkage transmission assemblies. The supporting type tray assembly is adjusted and inserted for multiple times along the mounting opening of the mounting assembly on the ground, and the position after fine adjustment and the position of the mounting assembly on the ground are in a vertical corresponding state, so that direct insertion type mounting of the non-metal sound barrier and the mounting assembly below is facilitated; therefore, manual adjustment of the non-metal sound barrier is reduced, the installation safety of the non-metal sound barrier is improved, and compared with a traditional mode that a lifting machine drives the non-metal sound barrier to adjust the installation position back and forth, the method does not need too skilled professional skills of workers.

This utility model relates to the field of threshing drum technology for seed harvesters, and particularly to a low-breakage threshing drum device for seed harvesters. It includes two fixed discs (first type), with multiple toothed rods arranged in a ring array between the first type of fixed discs. Multiple second fixed discs (second type) are symmetrically fitted onto the toothed rods, each toothed rod having multiple spiked teeth arranged in a ring array. Multiple through slots are arranged in a ring array on each second fixed disc, and cylinders are fixedly mounted on the inner walls of each through slot. The output ends of the cylinders are fixedly connected to adjacent toothed rods. Rotating rods are fixedly embedded through both first fixed discs, with through-wire channels extending through the rotating rods. Through holes matching the rotating rods are fixedly embedded through each second fixed disc. This utility model allows for easy disassembly and replacement of the spiked teeth, and facilitates adjustment of the device according to the crop, reducing grain breakage and improving the threshing effect and practicality of the device.

The utility model provides a chamfer grinding device for crankshaft production, which comprises a main body component, a grinding component arranged at the top of the main body component, a distance adjusting component arranged on the outer surface of the grinding component, a rotating component arranged on the surface of the distance adjusting component, and a clamping component arranged at one end of the rotating component, the first electric telescopic rod is fixedly connected to one ends of the distance adjusting assembly and the rotating assembly, and the position adjusting assembly is arranged on the outer surface of one end of the grinding assembly. According to the chamfer grinding device for crankshaft production, a crankshaft clamped on the main body assembly can be ground through the grinding assembly, meanwhile, the clamping assembly is arranged on the outer surface of the grinding assembly to clamp and fix a spray head, deviation of the spray head in the working process is effectively prevented, manual adjustment is reduced, and the production efficiency is improved. And the distance between the spray head and the grinding assembly, the spraying angle and the spraying position are adjusted through the distance adjusting assembly, the rotating assembly and the position adjusting assembly, and adjustment is convenient.