81results about How to "Precise control angle" patented technology

The invention discloses a continuous conveying device for heavy oil cleaning agent production, and relates to the technical field of heavy oil cleaning agent production, in particular to a continuous conveying device for heavy oil cleaning agent production, which comprises a first conveyor and a second conveyor, one end of the first conveyor is connected with a feeding machine in an attached mode. According to the continuous conveying device, the roller structures are arranged on the surfaces of the guide plate and the limiting side plate, when the braking plate enables containers in a machining area to be kept relatively stable, the conveying belt can conduct continuous transmission, workpieces at the front end can continue to be conveyed forwards in order by means of the transmission conveying belt and the roller structures on the two sides of the limiting side plate, stagnation of the containers at the front end is avoided, and the machining efficiency is improved. According to the packing machine, the number of starting and stopping times of the whole conveying equipment is reduced, due to intermittent rotation of the push disc, the containers which are originally tightly arranged are rearranged, an interval which is more convenient to grab is formed between the containers, the grabbing time is shortened, and the packing efficiency is improved.

The utility model discloses a mechanism utilizing a stepping motor to accurately adjust a die lip gap, which comprises a control mechanism, a mounting seat, a bolt adjusting rod, an indexing dial, a stepping motor and a transmission mechanism, the bolt adjusting rod, the indexing dial, the stepping motor and the transmission mechanism are arranged on the mounting seat, the upper end of the bolt adjusting rod is fixed on the indexing dial, and the lower end of the bolt adjusting rod is connected with a die head gap bolt. The control mechanism controls the rotating speed and the rotating angle of the stepping motor, the stepping motor drives the bolt adjusting rod to rotate through the transmission mechanism, and the indexing dial is provided with a calibration adjusting part. According to the utility model, the stepping motor is connected with the worm and gear speed reducer, so that the screwing torque of the bolt can be controlled, the stepping motor can accurately control the number of rotation turns and the rotation angle, and after the reduction ratio of the worm and gear speed reducer, the rotation angle of the indexing dial at each time can be more accurately controlled.

A workbench is arranged on the surface of a first rack, a mounting frame is fixedly arranged at the upper end of the workbench, an X-axis moving device is arranged at the upper end of the mounting frame, a Y-axis moving device is arranged at one end of the X-axis moving device, a gluing device is arranged at one end of the Y-axis moving device, and a Z-axis moving device is arranged on the surface of the workbench. A mounting base is arranged at the upper end of the moving device, a clamping jaw seat for mounting clamping jaws is arranged at the upper end of the mounting base, the clamping jaws are symmetrically mounted on the two sides of the clamping jaw seat through embedded hinge structures, and a driving assembly for enabling the clamping jaws to loosen or clamp is arranged at the bottom of the mounting base. A fixing pin for inserting and fixing a workpiece is further fixedly arranged at the position, between the clamping jaws, of the top of the clamping jaw base, an installation base is arranged at the upper end of the Z-axis moving device, the clamping jaw base is arranged at the upper end of the installation base, and the clamping jaws are symmetrically installed on the two sides of the clamping jaw base through embedded hinge structures and can stably clamp or loosen the workpiece in combination with a driving assembly. And the stability of the workpiece in the gluing process is ensured.

The invention discloses an extraction suppression mechanism for an ion implanter. The extraction suppression mechanism comprises a main bracket, the X-axis transmission unit is connected with the suppression pole unit; the driving end of the Y-axis transmission unit is connected with the X-axis transmission unit, and the Y-axis transmission unit is used for driving the X-axis transmission unit to move in the Y-axis direction; the driving end of the Z-axis transmission unit is connected with the X-axis transmission unit, and the Z-axis transmission unit is used for driving the X-axis transmission unit to move in the Z-axis direction; and the deflection shaft transmission unit is arranged on the main support, the driving end of the deflection shaft transmission unit is connected with the X-axis transmission unit, and the deflection shaft transmission unit is used for driving the X-axis transmission unit to deflect. According to the three-axis transmission mechanism, the deflection shaft transmission unit is additionally arranged on an existing three-axis transmission mechanism, three-dimensional space accurate control over the ion beam is achieved, and it is ensured that the ion beam can accurately reach the target position through high-precision control.

The utility model discloses a multifunctional display screen hanging rack which comprises a fixing seat, the fixing seat is installed on external equipment, an adjusting mechanism is arranged on the fixing seat and comprises a bearing mechanism, a fixing rod, a follow-up block, a fixing sleeve, an ejector block, a spring, a cup head and a moving mechanism, the bearing mechanism is connected to the fixing rod and the fixing seat in a matched mode, and the follow-up block is arranged on the fixing sleeve. The fixing sleeve is fixedly installed on the follow-up block, the adjusting mechanism provides the capacity of accurately controlling the position and the angle of the display screen, and through the combination of the fixing rod, the follow-up block, the fixing sleeve, the ejector block, the spring and the cup head, the mechanism allows a user to easily adjust the angle and the height of the display screen so as to meet different watching requirements. The flexibility is the key to improve the working efficiency and the visual comfort, especially in the environment where the visual angle needs to be changed frequently.

The invention provides an angle grinder performance testing device and method. The device comprises a tool support, wherein the tool support is provided with two oppositely-arranged supporting stand columns; the suspension beam is located between the two supporting stand columns, and the two ends of the suspension beam are slidably connected with the supporting stand columns respectively; one end of the elastic connecting piece is connected with the tool support, the other end of the elastic connecting piece is connected with the suspension beam, and the elastic connecting piece is configured to elastically hang the suspension beam on the tool support; the fixing part is arranged on the suspension beam and is used for fixing the angle grinder on the suspension beam; and the balancing weight is configured to apply a load with a set weight to the angle grinder. According to the angle grinder, the suspension device is ingeniously designed, the gravity of the angle grinder and the suspension device and the upward pulling force of the elastic connecting piece are in a balanced state to eliminate the gravity of the angle grinder, then force is applied to the angle grinder through the balancing weight, and the grinding test of applying force through pressing by a human hand is accurately simulated. The device can accurately control the magnitude and angle of applied force, the test result is accurate, and the device is convenient, safe and efficient to operate and use.

The invention relates to the technical field of reflective color films, in particular to a multi-reflective color film and production equipment thereof.The multi-reflective color film comprises an operation base, winding assemblies are fixedly installed at the top of the operation base, the winding assemblies are divided into two groups, the two ends of a multi-color film body are connected to the two winding assemblies in a wound mode respectively, and a limiting sliding groove is formed in one end of the top of the operation base; a transverse moving adjusting assembly is installed in the limiting sliding groove, an L-shaped mounting frame is installed on the transverse moving adjusting assembly, a vertical telescopic rod is fixedly connected to one end of the L-shaped mounting frame in an inserted mode, a mounting strip block is fixedly installed at the telescopic end of the vertical telescopic rod, and a rotary angle adjusting assembly and a reflective pigment spraying assembly are installed on the mounting strip block. According to the invention, the film surface has a three-dimensional layering sense, the visual impact force is obviously improved, the reflective effect is better, the spraying operation on the multicolor film body can be ensured to be accurate and flexible, the requirements of different pattern and color design are met, and meanwhile, the definition and color uniformity of patterns on the surface of the multicolor reflective film can be realized.

The invention belongs to the technical field of wind tunnel tests, and discloses a model pose video measurement system calibration device and a positioning method thereof. An XYZ-direction linear displacement driving mechanism and a three-degree-of-freedom angle adjusting mechanism are sequentially fixed above a multifunctional chassis of the calibration device, a calibration plate is fixed on the three-degree-of-freedom angle adjusting mechanism, and a communication module is fixed on the side surface of the multifunctional chassis; the manual operator sends a control instruction to the communication module, then transmits the control instruction to the upper computer and converts the control instruction into a control signal, the control signal is transmitted to the communication module, and finally each mechanism is driven to adjust the position of the calibration plate. The positioning method comprises the steps that all the linear displacement mechanisms are operated in place; adjusting the grating encoder; dividing a test area; the calibration device is operated in place; adjusting the position of the multifunctional chassis; acquiring an image of the calibration plate; calibrating a test area I; calibrating all test areas; and removing the calibration device. The calibration device and the positioning method thereof solve the problems of low efficiency and data errors caused by manual arrangement of the calibration plate, and have engineering practical value.

The utility model discloses a greenhouse structure suitable for Pien Tze Huang grass cultivation, and relates to the technical field of agricultural planting facilities. The greenhouse structure comprises two supporting assemblies which are symmetrically arranged, a plurality of illumination assemblies located between the two supporting assemblies and a driving assembly. The supporting assembly is composed of an arc-shaped supporting frame, a stand column, a cross beam and a stabilizing rod and provides stable supporting. The illumination assembly comprises a transparent hollow pipe body, a non-transparent partition plate and a rotating shaft, the partition plate divides the pipe body into a first lamp chamber and a second lamp chamber, and different types of functional lamps are arranged in the lamp chamber. The rotating shaft is rotationally connected with the cross beam; all the pipe bodies are transversely arranged in parallel. The driving assembly comprises a driving gear, a transmission gear set and a motor, and the motor drives the rotating shaft to drive all the pipe bodies to rotate synchronously. Through the cooperation of the illumination assembly and the driving assembly, the illumination type and angle can be flexibly adjusted, the utilization efficiency of illumination resources is improved, it is ensured that the Pien Tze Huang grass can obtain proper illumination in all growth stages, and the planting efficiency and quality are improved.

The invention discloses a total endoscopic fusion cage device for bone grafting. The total endoscopic fusion cage device comprises a pushing and injecting part, an injecting part and an injecting outer shell which are sequentially connected from inside to outside in a sleeving mode. The injection part and the injection outer shell are detachably connected through a connecting part; the injection device further comprises a retractable embedded bag body which is detachably connected with the injection outer shell body. The injection part comprises a first injection part and a second injection part which are sequentially matched with the injection outer shell for use, and an open hole matched with the filling opening of the embedded bag body is formed in the side face of the top of the first injection part; the top end of the second injection part is of an opening structure; the injection outer shell is provided with a side opening and a top opening which are matched with the first injection part and the second injection part respectively. According to the invention, the embedded capsule body structure can be unfolded through the implantation of pushing and injecting bone cement, and the bone cement is matched with the embedded capsule body to be implanted into each vertebral body gap, so that the accurate control on the implementation position and angle is realized, and the technical requirement of uniform distribution of bone grafting materials is met.

The utility model provides a kind of processing frock of marine high-power diesel engine cylinder cover inclined hole, it is related to marine diesel engine parts processing technical field, including base, backplate, positioning plate, cushion block, drill jig plate body, pin shaft and drill jig cover;The backplate and the cushion block are installed on the base top, the positioning plate is fixed on the backplate, the drill jig plate body is positioned fastening by the pin shaft, the drill jig cover is set on the drill jig plate body.The utility model solves the problem that different frock needs to be called when processing center processes cylinder cover inclined hole, there is the problem of repeated up and down activity, not only increase production cost, also reduce production efficiency, also difficult to guarantee the processing accuracy of inclined hole, it can lead to inclined hole drilling deviation due to angle problem, affect the cooling effect of cylinder cover.

The utility model relates to the related technical field of food detection, and discloses a pulp sampler for food detection, which is characterized in that a placing cavity is arranged in a placing cylinder, a clamping device and a sampling device are arranged in the placing cavity in a sliding manner, the clamping device comprises a placing plate, a plurality of sliding grooves are formed in the upper surface of the placing plate in an annular array manner, and the sampling device is arranged in the placing cavity. Sliding blocks are slidably installed in the sliding grooves formed in the array, claw plates are fixedly installed on the upper surfaces of the sliding blocks, and spring ropes are connected to the lower ends of the sliding blocks arranged in the array. The cutting plate is slidably mounted on the surface of the side through groove, so that a regular and consistent opening can be cut in the surface of the orange, a standardized pulp sample can be obtained, the cutting plate can complete cutting of the upper layer surface of the orange through simple operation, and compared with manual peeling or cutting, the time is greatly saved, and the sampling efficiency is improved.

The utility model discloses spontaneous combustion detection equipment for a battery pack of a new energy automobile. The spontaneous combustion detection equipment comprises a rack, a falling tower and a three-axis moving track mechanism, the automobile chassis enters the rack under the action of external force and is relatively fixed on the rack; the falling tower comprises an impact detection head, and the impact detection head can move along the extension direction of the falling tower and impact the battery pack to be detected; the three-axis moving track mechanism is arranged on the rack, and the falling tower can move along three axial tracks. According to the utility model, the battery pack assembled in the automobile chassis can be directly detected, the detection effect is closer to the real condition, and compared with staged mobile detection, the battery detection of the whole new energy automobile chassis is integrated and continuous, the detection process is more efficient, human intervention can be reduced in the detection process, and the detection efficiency is improved. The detection speed and accuracy are improved; meanwhile, a centralized detection system can ensure that all key parts are comprehensively detected, and the possibility of missing detection is reduced.

This utility model discloses an integrated chamfering and edge grinding machine, relating to the field of machining technology. It includes a conveyor frame, an edge grinding frame, a clamping assembly, a lifting mechanism, and an edge grinding assembly. In use, the conveyor motor, chamfering drive motor, clamping motor, lifting mechanism, and edge grinding motor are activated separately via a controller. First, the output shaft of the clamping motor drives the clamping drive shaft to rotate. A clamping gear, mounted on the clamping drive shaft, rotates along with it. The clamping gear meshes with the serrated teeth of a misaligned clamping rod, causing the misaligned clamping rod to move under the drive of the clamping gear, thus opening and closing the clamping jaws. When the clamping jaws are closed, they firmly clamp the part to be processed, providing stable support for the chamfering operation. After the part is clamped by the clamping jaws, the chamfering drive motor starts, and its output shaft is connected to the clamping assembly to perform the chamfering operation on the part.

The invention discloses an indoor and outdoor autonomous switching unmanned intelligent agent with a redundant propulsion system and a method, and belongs to the technical field of unmanned aerial vehicles. The indoor and outdoor autonomous switching unmanned intelligent body with the redundant propulsion system comprises an unmanned intelligent body main body, two propulsion rotors are arranged in each auxiliary propeller shell, and a main rotor is arranged in a flight opening; and a high-precision hydraulic turntable is mounted at one end of the auxiliary propeller shell. The problems that an existing multi-rotor unmanned aerial vehicle is difficult to position in an indoor GPS denial environment and poor in maneuverability in a narrow space are solved, the propelling rotors can provide lift force for maintaining the height by calculating the thrust distribution scheme of the propelling rotors, yawing, pitching and rolling moments are synthesized through differential thrust, the flight control right is taken over, and the maneuverability of the multi-rotor unmanned aerial vehicle is improved. An intelligent unmanned platform which can safely, autonomously and continuously operate at an environment boundary and a system state boundary is created, and the intelligent unmanned platform can autonomously fly in indoor and outdoor complex environments and has a fault-tolerant capability.

The utility model discloses disassembling equipment for a button battery, which relates to the technical field of battery disassembling and comprises a case, guide posts are fixedly connected to the left side and the right side above the case, a fixing plate is fixedly connected to the upper portions of the two guide posts, an upper die holder is detachably connected to the middle of the bottom surface of the fixing plate, and an ejector pin is fixedly connected to the middle of the bottom surface of the upper die holder. A moving plate is slidably connected between the two guide columns through sliding sleeves, a fixing seat is detachably connected to the middle of the upper surface of the moving plate, a lower die holder is detachably connected to the upper portion of the fixing seat, a disassembling groove is formed in the middle of the upper portion of the lower die holder, disassembling steps are arranged in the disassembling groove, and a jacking assembly is fixedly installed at the position, below the moving plate, above the machine box. The device has the advantages that the jacking assembly is driven by the servo motor to accurately control the height of the moving plate, the disassembly strength and angle can be accurately controlled in cooperation with positioning of the ejector pin and the disassembly step, breakage or deformation of a battery shell caused by disassembly of traditional pliers is avoided, and it is ensured that the internal structure is complete.

The invention discloses an annular radiation emission testing device and method, the device comprises an antenna tower with a testing antenna, an annular guide rail, a signal transmission cable and an upper computer, the antenna tower is constructed to be a movable part capable of moving along the guide rail, the antenna tower is connected with the upper computer through the signal transmission cable, and the upper computer is connected with the annular guide rail. The upper computer controls the antenna tower to move on the guide rail; the antenna tower comprises an antenna tower base, a roller, a vertical rod, a cross rod and the test antenna, the antenna tower base moves on the guide rail through the roller, the vertical rod is erected on the antenna tower base, the cross rod is configured to be a height-adjustable part installed on the vertical rod, and the test antenna is arranged on the test antenna. The test antenna is installed on the cross bar. The method is suitable for radiation emission tests of various large-scale products, and the test efficiency is high.

The utility model relates to the field of semiconductor process equipment, in particular to a buffer cavity cover manual and electric integrated uncovering device which comprises a side edge fixing plate, a top end cover is fixed above one side of the outer wall of the side edge fixing plate, and a lower base is fixed at the bottom of one side of the outer wall of the side edge fixing plate. A buffering cavity connecting plate fixed to the buffering cavity cover is arranged at the front end of the outer wall of the side edge fixing plate and located between the top end cover and the lower base, a lifting component is arranged at the end, close to the side edge fixing plate, of the buffering cavity connecting plate, and a power component for driving the lifting component is arranged at the top end of the outer wall of the top end cover. According to the utility model, the operation process is simplified, the uncovering stability is improved, the safety is enhanced, the labor intensity is reduced, the production efficiency is improved, the convenient, quick, safe and reliable uncovering experience is brought to a user, and the uncovering device has obvious advantages and beneficial effects.

The invention discloses a multifunctional vehicle assembly and a control method thereof.The multifunctional vehicle assembly comprises an upper vehicle frame, a lower vehicle frame, a slewing bearing and a main control box arranged on the upper vehicle frame, and the upper vehicle frame and the lower vehicle frame are rotationally connected through the slewing bearing; a first rotating frame and a second rotating frame are arranged on the upper frame, a large arm is rotationally connected to the first rotating frame, a large arm oil cylinder is rotationally connected to the second rotating frame, and the other end of the large arm oil cylinder is rotationally connected with the middle of the large arm; the other end of the large arm is rotationally connected with a quick-change connector, the large arm is rotationally connected with one end of a connector adjusting oil cylinder, the other end of the connector adjusting oil cylinder is rotationally connected with the other end of the quick-change connector, a working head is arranged on the quick-change connector, and the working head is an excavator working head or a loading working head; through the structural arrangement of the quick-change connector, different working heads can be conveniently and quickly replaced, the design enables a vehicle to flexibly deal with different operation scenes, and the utilization rate and the operation efficiency of equipment are improved.

The invention relates to equipment capable of stably opening or closing a box cover, which comprises a supporting platform, a box body arranged on the surface of the supporting platform, and a box upper cover detachably connected to the surface of the box body, and a box locking mechanism for limiting the supporting platform from moving is arranged on the surface of the supporting platform close to the corner of the box body. A driving mechanism is further arranged on the surface of the supporting platform, the driving end of the driving mechanism is connected with an overturning mechanism, and a grabbing mechanism for grabbing the upper cover of the box body is arranged in the overturning mechanism; according to the turnover mechanism, precise turnover is achieved, the box body upper cover can be easily and stably grabbed in cooperation with the grabbing mechanism installed at the end, and manual operation is not needed in the whole process.

The utility model discloses an anti-coking, impact-resistant and vibration-resistant adjusting ball valve for coal chemical industry black water, and relates to the field of adjusting ball valves. In coal chemical industry black water treatment, a black water medium has the characteristics of high suspended matter content, high temperature, high alkali content, high corrosion content and high-hardness solid particle content, and abrasion, corrosion, coking jamming and driving failure of traditional valve internals are easily caused. Comprising a fixing shaft, a left valve body, a right valve body, a left valve seat, a right valve seat, a ball body, a valve rod and an executing mechanism, the ball body, the valve seats and valve body flow channels are spray-welded with tungsten carbide layers with the hardness larger than or equal to HRC65, the left valve seat and the right valve seat achieve two-way pre-tightening sealing through spiral springs and the ball body, and scraper type cutting edges are arranged on the sealing faces of the valve seats. The valve rod adopts a large-diameter high-strength design and is in anti-rotation connection with the ball body, and the stuffing box adopts a disc spring load limiting and pressurizing structure. The wear resistance, impact resistance and coking resistance are remarkably improved, bidirectional reliable sealing is achieved, stable driving under the high-torque working condition is guaranteed, the service life of the valve is prolonged, and the valve is suitable for the coal chemical industry black water extreme working condition.

The utility model relates to the technical field of hedyotis processing equipment, in particular to a device for peeling hedyotis villus, which comprises a platform, hedyotis is placed on the top of the platform, edges of two sides of the hedyotis are pressed and positioned through a lifting pressing plate, and the hedyotis villus is scraped up through a line lifting device arranged on the upper portion of the end of the hedyotis. And a first lifting lead screw sliding table and a second lifting lead screw sliding block are installed on the two sides of the platform respectively, the first lifting lead screw sliding table drives the thread lifting device to ascend and descend, and the second lifting lead screw sliding block drives the lifting pressing plate to ascend and descend. According to the device for stripping the fire grass villus, the edges of the two sides of the fire grass are pressed and positioned through the lifting pressing plate, the fire grass villus is automatically scraped by matching with the thread lifting device, and the thread twisting operation is performed by virtue of the thread twisting device, so that the manual operation time is greatly shortened, and the fire grass villus stripping and thread twisting speed is remarkably improved; and the problem of low production efficiency of traditional manual operation is effectively solved.

This utility model discloses a rotating drum-type isolating phase-changing switch with a moving contact, including a base plate, a rotating drum assembly, a stationary contact, a moving contact, an arc extinguisher, an insulating medium, a contact support, and a spring sheet. This utility model features a reasonable and simple structure, low production cost, convenient installation, and complete functionality. Through the coordinated operation of components such as the base plate, rotating drum assembly, sleeve, drum shell, and connecting block, the overall structure is stable. Furthermore, the rotating drum assembly is built into a specific structure, improving switch safety and reducing the risk of accidental contact. This utility model optimizes contact matching accuracy through the drum body, moving contact, and stationary contact within the rotating drum assembly, in conjunction with a contact pressure adjustment mechanism. This allows for precise control of the breaking angle and contact pressure, improving switch performance and lifespan.

The utility model provides a kind of carbon-coated aluminium foil surface quality treatment device, comprising: the unwinding device of connection in proper order, hot air knife device, first oven device, first coating device, second oven device, second coating device, third oven device and winding device;Winding device is used to wind aluminium foil roll after aluminium foil roll is sequentially treated by hot air knife device, first coating device, second oven device, second coating device and third oven device;Hot air knife device is used to remove oil film by shearing stripping and pyrolytic oxidation mode to aluminium foil roll;First coating device is used to coat the front of aluminium foil roll passing;Second oven device is used to dry the front of aluminium foil roll;Second coating device is used to coat the back of aluminium foil roll;Third oven device is used to dry the back of aluminium foil roll and is transported to winding device.The utility model's carbon-coated aluminium foil surface quality treatment device can improve the surface quality of aluminium foil.

The utility model belongs to the technical field of motor assembly, and discloses a flexible centering rotation opposite-angle floating mechanism, which comprises a floating seat, a transition plate is arranged right above the floating seat, the floating seat is connected with the transition plate through an adjusting assembly, and the adjusting assembly is used for driving the transition plate to move in a horizontal plane; the crossed roller bearing is arranged on the transition plate, and the bottom surface of an inner ring of the crossed roller bearing is fixed on the transition plate; the bearing base is arranged over the crossed roller bearing, the bearing base is fixed to an outer ring of the crossed roller bearing, a round through hole is formed in the bearing base, and a locking unit used for controlling the outer ring of the crossed roller bearing to be locked is arranged on the bearing base; the purpose of accurately controlling and adjusting the angle and the position when the stator and the water jacket are assembled is achieved.

The utility model relates to the technical field of machining equipment, and provides a mechanism for conveniently machining a shaft body, which comprises an outer frame and an abutting shaft connected to the outer frame, and further comprises a spool head synchronous belt and an abutting shaft synchronous drive, a plurality of trapezoidal guide blocks are arranged on the side of the bottom of an upper wheel of a spool, a steering block is further connected to a platform frame, and the steering block is connected with a rotating shaft. A rotating shaft is arranged on the steering block in a penetrating mode, one end of the rotating shaft is connected with a scraping knife, the other end of the rotating shaft extends towards the trapezoidal guide block to control the rotating shaft to tilt, the extending end of the rotating shaft is further sleeved with a rotating shaft sleeve, and a spring is further connected between the platform frame and the rotating shaft sleeve to facilitate resetting after tilting. The tilting amplitude of the scraping knife is determined by the angle and the height of the trapezoidal guide block, the angle between the scraping knife and the end face of the shaft body can be accurately controlled by the moving track of the guide block, and the downward pressing force during resetting can be set by adjusting the rigidity of the spring, so that the consistency of the scraping force and the scraping angle each time is ensured.

The utility model discloses a numerical control bending device for an environment-friendly ventilating duct, which relates to the technical field of environment-friendly ventilating ducts and comprises a housing, supporting legs, a sliding chute, a motor, a lead screw, a first bearing, a movable plate, a fixed seat, a clamping sleeve, a guide rod, a limiting block, a second bearing, a screw rod, a hand wheel, a mounting platform, a reinforcing rib, a bending component and the like. The servo motor is adopted to drive the lead screw, the rotating angle and speed of the lead screw can be accurately controlled, and then the moving distance and speed of the moving plate are accurately controlled. In this way, in the bending process of the ventilation pipeline, control over the bending position and angle is more accurate, the problem that it is difficult for traditional manual bending or simple mechanical bending equipment to guarantee the consistency of the bending precision is effectively solved, the bending quality of the ventilation pipeline is greatly improved, it is guaranteed that the product is tightly connected and good in sealing performance when installed and used, and the product quality is improved. The overall performance of the ventilation system is improved.

The invention provides a mounting method of an ALC wallboard, and belongs to the technical field of building construction, and the ALC wallboard comprises a moving platform, a first hydraulic cylinder, an ALC wallboard supporting plate assembly, an ALC wallboard baffle assembly and a second hydraulic cylinder; the first hydraulic cylinder is rotationally connected with one end of the moving platform; the ALC wallboard supporting plate assembly is of an automatic telescopic structure, and one end of the ALC wallboard supporting plate assembly is rotationally connected with the telescopic end of the first hydraulic cylinder. The ALC baffle assembly is of an automatic telescopic structure, and the ALC wallboard baffle assembly is arranged at the bottom end of the ALC wallboard supporting plate. The second hydraulic cylinder is rotationally connected with the other end of the movable platform, and the telescopic end of the second hydraulic cylinder is rotationally connected with the other end of the ALC wallboard supporting plate assembly; according to the method, self-adaptive adjustment can be conducted according to the ALC wallboards of different lengths and thicknesses, the flexibility of the device is improved, through cooperative work of the first hydraulic cylinder and the second hydraulic cylinder, the height and angle of the ALC wallboards are accurately controlled, and it is ensured that the ALC wallboards can be accurately aligned to the preset installation position.

The invention discloses a directional fan-shaped range pickup method and system based on a microphone linear array, a terminal and a medium, and the method comprises the steps: building the microphone linear array which comprises at least one directional microphone and a plurality of omnidirectional microphones; determining a sound source angle and a distance between a sound source and the center of the omni-directional microphone based on the phase difference between the omni-directional microphones, and determining a fan-shaped pickup area based on the sound source angle and the distance to realize fan-shaped range pickup; and determining a position relationship between the sound source and the microphone linear array based on an amplitude difference between the directional microphone and any omnidirectional microphone, and obtaining a directional fan-shaped pickup area based on the position relationship and the fan-shaped pickup area, thereby realizing directional fan-shaped range pickup. The position relation means that the sound source is located in front of or behind the microphone linear array. According to the invention, the pickup distance and angle can be accurately controlled, and the directional fan-shaped range area pickup can be effectively solved.

The invention provides a step planing and milling device for pavement engineering and a planing and milling machine, belongs to the field of pavement planing and milling, and aims to solve the problems that a planing and milling machine cannot carry out side surface step planing and milling at a joint of a new road and an old road, so that the joint is poor in bonding quality and easy to damage. Comprising a mounting base, a transverse adjusting unit, a swinging execution unit, a lateral planing and milling head and a spraying unit, through cooperative cooperation of the transverse adjusting unit and the swing executing unit, the position and angle of the lateral milling head in the horizontal direction (transverse direction) and the vertical direction (depth) can be accurately controlled, so that the lateral milling head can stably and regularly mill a step structure on the side face of an old road, and the problems that a traditional milling machine can only mill a whole plane, and the milling efficiency is low are solved. And high-quality joint treatment cannot be completed under special working conditions such as half-range passing and connection of new and old roads.