19 results about "Broken teeth" patented technology

The invention discloses an escalator comb plate broken tooth defect and foreign matter invasion detection method and system, and the method comprises the steps: employing a trained detection model to recognize broken teeth and foreign matters, and employing the detection model as a frame, and inputting the small target fusion features output by the FPN structure, the low-layer local features extracted by the Conv module in the backbone network, the high-resolution shallow-layer features extracted by the PinwhelConv module, and the fused features into a detection head for small target detection. According to the method, the geometric feature capturing capability of the broken tooth profile is remarkably improved, and the small target detection effect is effectively improved.

The invention discloses an escalator comb plate foreign matter and defect detection method and system, and the method comprises the steps: recognizing the types and bounding boxes of broken teeth and / or foreign matters through a detection model, employing an SPPFA module for the detection model, and adding a channel attention module behind each pooling layer of an SPPF module through the SPPFA module, the output of each channel attention module is spliced and then input to the space attention module; meanwhile, the loss function of the detection model is the weighted sum of the Shape-IoU loss function, the NWD loss function and the IoU loss function. According to the method, the capturing capability and the anti-interference performance of the model on key features are improved through space attention and channel attention, and the small target detection effect is improved; and meanwhile, shape constraint is supplemented through a Shape-IoU loss function, shape misalignment is avoided, a smooth gradient is provided through NWD, and small target convergence stability is guaranteed.

The invention discloses a broken tooth repairing method based on a laser cladding technology. The broken tooth repairing method is specifically implemented according to the following steps that 1, the profile of a broken tooth surface is obtained; 2, broken tooth repairing preparation; 3, repairing the section; and 4, heat treatment and performance optimization. The broken gear can be efficiently repaired, the mechanical property and the tribological property of the broken gear can be improved, and the service life of the gear is prolonged.

The utility model relates to the technical field of crushers, and provides a detachable crushing tooth for a crusher, which comprises a tooth ring seat provided with a plurality of mounting surfaces, and the plurality of mounting surfaces are circumferentially arranged along the periphery of the tooth ring seat; the bottoms of the crushing tooth heads are provided with matching surfaces, the crushing tooth heads are detachably arranged on the mounting surfaces through the matching surfaces, and the matching surfaces correspond to the mounting surfaces one to one. By means of the technical scheme, the problem that in the prior art, after a gear ring type whole is damaged, on-site rapid replacement cannot be achieved is solved.

The invention relates to the technical field of shield tunneling machine main bearing repair, and particularly discloses a shield tunneling machine main bearing broken tooth regeneration in-hole repair method which comprises the following steps: S1, construction preparation; s2, evaluating the tooth surface of the bearing; s3, local driving of the main bearing is recovered; s4, grinding the damaged teeth of the bearing before surfacing; s5, carrying out surfacing regeneration on the damaged teeth of the bearing; s6, detecting and evaluating after repairing; and S7, restoring the driving function. Under the condition that the main bearing of the shield tunneling machine is not disassembled, the function of the bearing is recovered through the bearing tooth in-situ regeneration and repair technology, and it is guaranteed that the shield tunneling machine smoothly completes the tunnel excavation task to the maximum extent; and secondly, compared with a traditional vertical shaft digging, dismounting and repairing mode, the method has the advantages that high-cost input caused by vertical shaft excavation construction is avoided, the cost and construction risks are greatly reduced, meanwhile, damage to the surrounding environment and resource waste are reduced, and interference to urban operation is reduced.

The application discloses a kind of numerical control processing arbitrary tooth number cutter vibration signal adaptive identification analysis method, belong to aviation manufacturing field, including the following steps: based on vibration sensor obtains cutter vibration data, parses vibration data and draws vibration data image v_image, design vibration image feature descriptor realizes feature extraction, based on the feature difference evaluation function designed in two-dimensional space feature distribution map obtains feature difference key point, according to adaptive regional threshold value judging mode and neural network identification mode obtains identification result, fusion result and comparison obtain signal output.The application is suitable for analyzing and identifying the wear amount, broken tooth, missing tooth, missing and other abnormalities or defects of cutter tooth, based on adaptive identification and result fusion analysis, can further improve the accuracy of tool abnormality identification, reduce false alarm rate and other technical indicators, reduce the possibility of workpiece scrap caused by tool abnormality, thereby avoiding or reducing economic loss.

The invention belongs to the technical field of laser cladding remanufacturing, and relates to a method for repairing broken tooth damage of a gear. According to the method, firstly, a machining method is adopted, after all areas of broken teeth to be repaired are removed, the broken teeth are continuously cut inwards, and a groove which is provided with a flat and defect-free bottom face and is parallel to the axis of a gear is obtained in a tooth root circle; after gear parameters are collected, a gear base body is preheated, the bottom face serves as a base face, technological parameters are determined, a scanning mode is selected for basic tooth profile cladding, cladding continues after a groove is filled, an approximately-trapezoidal basic tooth profile is obtained, and cladding allowance is reserved on the tooth side face; the relative position posture that a laser head is vertical and the tooth side face is inclined is adopted, gradient composite powder is adopted for tooth side face cladding material increase, a gradient cladding layer is obtained, the cladding allowance reserved for basic tooth profile cladding is supplemented, and the machining allowance of the tooth face is removed; and finish machining and heat treatment are conducted on the repairing layer, the precision and performance of the repaired gear are improved, and the performance of the repaired gear is inspected.

The utility model discloses composite broken tooth anti-fake bottle cap production equipment which comprises a base, lower mold bases are arranged on the left side and the right side of the upper end of the base respectively, forming grooves are formed in the upper ends of the lower mold bases respectively, and injection molding pipes are arranged in injection molding openings formed in the upper side of the inner arc face of the forming groove in the right side. Upper mold bases are arranged in the middle of the upper end of the base, the upper mold bases correspond to the upper positions and the lower positions of the two transversely adjacent forming grooves correspondingly, and grooves are formed in the upper sides of the outer arc faces of the upper mold bases correspondingly; the demolding mechanism comprises mounting grooves and a limiting plate, the mounting grooves are formed in the lower side of the outer arc face of the upper mold base, and the mounting grooves communicate with the vertically adjacent grooves correspondingly, the combined type broken tooth anti-fake bottle cap production equipment can provide vertical avoiding for demolding of the combined type broken tooth anti-fake bottle caps during demolding, the demolding time is shortened, and the production efficiency is improved. And the working efficiency is further improved, the structure is simple, and meanwhile materials cannot be damaged.

The utility model belongs to the technical field of stone crushing devices, and provides a multi-stage stone crushing and impacting device which comprises a material throwing and impacting device and a conveyor. The material throwing impact device is composed of an impact cylinder, a material throwing device and a discharging hopper, the material throwing device is arranged in an inner cavity of the impact cylinder, and the inner cavity of the impact cylinder is composed of multiple layers of impact cavities; crushing teeth are uniformly distributed on the inner wall of each impact cavity, the crushing teeth of each impact cavity respectively correspond to one specification, the specification of the crushing teeth on the uppermost layer is the largest, and the specification of the crushing teeth on the lowermost layer is the smallest; the material throwing device is composed of a feeding port, a material throwing cylinder and a material throwing motor, a guide plate is arranged in the material throwing cylinder, through grooves are formed in the material throwing cylinder at equal intervals, and broken stones are injected into the material throwing cylinder through the feeding port; according to the scheme, the multi-layer impact crushing device is provided to meet different crushing requirements, the universality of the impact device is improved, the crushing specification can be adjusted by adjusting the relative position of the material throwing barrel and the impact cavity, and the multi-layer impact crushing device is very convenient to use.

The invention discloses a full-automatic tea picking and pruning all-in-one machine which comprises a rack and a pruning unit arranged on the rack. The trimming unit comprises a cutter driven in a reciprocating and staggered mode and a plurality of trimming teeth arranged on the cutter. The trimming unit is transversely arranged on the rack in a sliding mode, and a driving motor used for driving the trimming unit to slide in a reciprocating mode is arranged on the rack; after the driving motor is started, transverse reciprocating displacement of the trimming unit is achieved, and then a trimming notch of the cutter in the tooth missing state is compensated. A detection loop composed of the resistance rod, the wire and the elastic guide piece is arranged in the trimming teeth, the number of broken teeth can be automatically and accurately positioned in real time, then the controller drives the servo push rod and the motor, the whole trimming unit is driven to transversely move, and the intact trimming teeth compensate for trimming notches caused by tooth missing.

The application discloses a kind of marine mining area geological survey columnar sediments cutting sampling device of sampling device technical field, including mounting frame, support leg, drive drill rig;When the present application is surveyed and sampled to the geology of marine mining area, utilize rotating column and cleaning tooth, rotating column and cleaning tooth can be rotated under the drive of silt and debris, the mud discharge effect of drill bit can be increased by rotating column rotation, avoid silt and debris will gather and adhere in the gap between multiple broken teeth, and cleaning tooth can stir and clean silt and debris that have adhered between multiple broken teeth, so that silt and debris adhered between broken teeth can be stripped and flow with water flow, avoid multiple broken teeth between there can be silt and debris adhered, and utilize flushing hole to flush the gap between broken teeth, cooperate with the stripping of silt and debris between broken teeth by cleaning tooth, can further remove the debris remaining between broken teeth.

The invention relates to the technical field of coal mining, and discloses a three-dimensional point cloud data processing-based bolter miner roller repair toothholder positioning method, which comprises the following steps of: in the process of maintaining a bolter miner roller by using an industrial robot, acquiring three-dimensional point cloud data of an irregular surface left after cutting a damaged toothholder of a roller body through a visual sensor; a cushion block is positioned through an algorithm, the conversion relation between the posture of a tooth holder attached to the surface of the cushion block and the posture of the cushion block is calculated through the posture of a recognition point-teaching point, the tooth holder arc face is accurately attached to the surface of the cylinder cushion block, and the method comprises the following steps that S1, point cloud data are obtained; s2, preprocessing the original point cloud; s3, searching for the maximum connected domain; s4, determining a 2D center; s5, extracting point clouds in the region; s6, performing curvature segmentation; s7, acquiring a surface point cloud of the cushion block; and S8, calculating the surface pose of the cushion block. Automatic positioning of the position of the cushion block can be achieved in a visual positioning mode, and the tooth holder positioning efficiency and precision are improved.

The utility model discloses a combined type broken tooth anti-fake bottle cap which comprises a bottle neck. The upper end of the bottle neck is in threaded connection with an inner cover, the inner cover is movably sleeved with an outer cover, the lower end of the outer cover is provided with an outer sleeve through upper broken teeth which are evenly distributed, the outer sleeve is movably sleeved with a transparent cover, a disposable clamping head is arranged in an avoiding groove in the inner arc wall of the transparent cover, and the disposable clamping head is movably clamped with a clamping groove in the outer arc face of the outer sleeve. The outer arc face of the arc chamfer at the lower end of the outer sleeve is provided with evenly-distributed lower breaking teeth, the lower end of the interior of the transparent cover is provided with a top ring, and the multiple lower breaking teeth are all located above the top ring. And meanwhile, the top ring and the lower breaking teeth can generate section traces on pulling opening, the bottle cap has a good anti-fake effect through the combined type broken tooth structure, and meanwhile installation convenience is good.

The invention relates to the technical field of salt cavern gas storage brine discharging, in particular to a salt cavern gas storage anti-blocking brine discharging device which comprises an obstacle breaking mechanism, a liquid changing mechanism arranged in the obstacle breaking mechanism, a tooth head strengthening mechanism arranged in the liquid changing mechanism and a self-adaptive pressure control mechanism arranged in the tooth head strengthening mechanism. The barrier breaking mechanism comprises a reinforcing ring sleeve, a first rail piece arranged in a groove in the inner side of the reinforcing ring sleeve, and a breaking tooth head movably installed in the first rail piece. An existing central pipe brine discharging mode is set to be a liquid changing mechanism of double-cavity circulating brine discharging, kinetic energy is provided for a tooth head reinforcing mechanism through flowing of a solution, and under the high-pressure state, the tooth head reinforcing mechanism in stable rotation can drive a plurality of evenly-distributed tooth heads to forcibly crush deep salt mounds and hard foreign matter in a salt layer; and the crushed slag is discharged by the liquid changing mechanism under the pressure of the brine, so that the interference of foreign matters on the brine discharging operation is avoided.

The utility model relates to the technical field of bottle cap anti-counterfeiting, and discloses a broken tooth anti-counterfeiting bottle cap which comprises an upper cap, a neck sleeve is arranged in the upper cap, a top cap is arranged at the top of the upper cap, and a broken tooth assembly capable of conducting broken tooth anti-counterfeiting when the bottle cap is opened is arranged on the neck sleeve. Through the arrangement of the tooth breaking assembly and the abrasion assembly, when the bottle cap is opened, anti-fake teeth of the tooth breaking assembly can be broken in tooth breaking grooves, so that a first anti-fake mark is formed, the abrasion assembly can also abrade patterns on the surface of the upper cap when the bottle cap is opened, and therefore a second anti-fake mark can be formed; when the bottle cap is opened, the first anti-counterfeiting thread and the second anti-counterfeiting thread are broken, so that a third anti-counterfeiting mark is formed, the bottle cap can be subjected to anti-counterfeiting marking, the anti-counterfeiting repairing of the bottle cap is difficult, and illegal vendors are prevented from repairing the anti-counterfeiting mark to sell the bottle cap again.

The utility model provides a wear -resisting alloy rotary excavating tooth, including connection support body, stable tooth holder, installation connecting groove, installation support base body, broken tooth body and rock breaking tooth tip, wherein: stable tooth holder fixed mounting is in the top of connection support body, and installation connecting groove is opened in the surface of connection support body, and installation support base body fixed mounting is below connection support body, broken tooth body sliding installation is in the outside of installation support base body, and rock breaking tooth tip fixed mounting is in the bottom of broken tooth body, the utility model discloses installation support base body and the setting of broken tooth body, high, can realize efficient progressive crushing, can replace locally after damaging.

The utility model relates to the technical field of mechanical transmission, in particular to a precision gear with an assembly adjustable function, fan-shaped tooth blocks are uniformly mounted between two chucks, T-shaped pins are fixedly mounted on the fan-shaped tooth blocks, T-shaped grooves are formed in the fan-shaped tooth blocks, rotating columns for transmission are mounted on the chucks in a sliding manner, and the T-shaped grooves are formed in the rotating columns. A rotary cover used for clamping the chuck is installed on the rotary column in a threaded mode, and threaded rods used for adjusting the position are evenly and fixedly installed at the side end of the rotary column. When teeth of the fan-shaped tooth block are broken in the transmission process, the screw cap is screwed off, then the chuck at the screw cap end is taken down, the fan-shaped tooth block can be completely exposed outside, then the broken fan-shaped tooth block is pushed along the axis, the broken fan-shaped tooth block can be taken down and replaced with a new fan-shaped tooth block, then the screw cap end is inserted back, and then the screw cap is screwed down. Operation is easy and convenient, broken teeth are convenient to replace, and the maintenance cost is reduced.

The present application belongs to the field of vibration detection, and particularly relates to a kind of conical box component vibration fault detection device, comprising: operation platform;Self-adapting buffer detection mechanism, it is installed inside the operation platform, for with conical box inside gear self-adapting buffer type contact, prevent and gear contact not comprehensive appear detection result inaccuracy phenomenon;Through self-adapting buffer detection mechanism adopts symmetrical arrangement, rack and pinion meshing realizes the reverse synchronous motion of detection head: one side contact tooth top lifts when, the other side automatically probes tooth groove, ensure that detection point all around evenly contact tooth surface.Each detection head independently equipped with spring and damper, form buffer filter system, both can adapt to the microfluctuation of tooth surface, avoid rigid impact, can also filter out high-frequency noise, extract pure vibration signal to identify pitting, broken teeth and other faults.This design fundamentally solves the signal distortion problem caused by poor contact, significantly improves the accuracy, reliability and efficiency of vibration diagnosis.

The present invention discloses an automatic repair method for PDC drill bit defects, which belongs to the technical field of laser equipment modification. The technical problem to be solved by the present invention is how to realize the automatic detection and automatic repair of wear such as broken teeth and bonding layer shedding of PDC drill bits. The technical solution adopted is as follows: the method uses a manipulator equipped with a three-dimensional scanner to perform rapid three-dimensional scanning and measurement of the worn parts of the PDC drill bit, compares and calculates the scanning results with the standard digital model of the PDC drill bit through data processing, obtains the position and three-dimensional model shape of the area to be repaired of the PDC drill bit, and automatically plans the cladding path. At the same time, the manipulator is controlled to guide the laser cladding equipment to complete the repair of the damaged body on the PDC drill bit, thereby forming repair paths for different damage degrees, thereby completing the automatic repair of the damaged body of the PDC drill bit.