244results about How to "Low processing and manufacturing costs" patented technology

The invention belongs to the technical field of spectrum detection, and particularly relates to a spectrum smell recognition module which comprises a light source device, a first concave reflector assembly, a second concave reflector assembly, two angle-adjustable reflectors and a spectrum sensor assembly. A gas spectrum absorption cell and a gas spectrum reference cell are formed between the first concave reflector and the second concave reflector, a transparent optical window is arranged between the gas spectrum absorption cell and the gas spectrum reference cell for isolation, and an angle-adjustable reflector is arranged at each of the two ends of the gas spectrum reference cell; by synchronously switching the angles of the two angle-adjustable reflectors, the real-time switching of the spectrum smell recognition module between the gas spectrum absorption cell and the gas spectrum reference cell is realized, and the intensity of the gas spectrum absorption signal is superposed and accumulated through multiple times of switching to carry out spectrum signal analysis. According to the invention, the intensity of a gas spectrum absorption signal and the accuracy and stability of a spectrum signal are improved, and meanwhile, the self-calibration function of the spectrum smell recognition module is also realized.

The invention provides a corn thinning auxiliary device which comprises a walking supporting mechanism, a lying plate, an isolation cover and a seedling pulling and smashing mechanism, the walking supporting mechanism is used for achieving walking and supporting of the lying plate, the lying plate can move up and down to be adjusted and positioned, an observation hole is formed in one end of the lying plate, and the seedling pulling and smashing mechanism is arranged in the observation hole. The isolation cover and the seedling pulling and smashing mechanism are hung at the bottom of the lying plate through a first tension spring and a second tension spring respectively, the isolation cover and the seedling pulling and smashing mechanism are adjacent to the observation hole, the isolation cover is used for achieving isolation protection of corn seedlings needing to be reserved, and the seedling pulling and smashing mechanism is used for achieving pulling and smashing of the corn seedlings needing to be pulled out. A worker lies on the lying plate for thinning operation, so that the labor intensity of the worker is greatly reduced; when two seedlings with close roots are thinned, corn seedlings in the isolation cover can be effectively prevented from being synchronously pulled out by utilizing the pressing effect of the edge of the isolation cover on the peripheries of the roots of the seedlings, so that the thinning quality can be improved.

The intelligent double-gate-plate gate valve comprises a valve body and a valve rod located in the valve body, a driving piece for driving the valve rod to move up and down is arranged above the valve body, the driving piece comprises a main air cylinder, an auxiliary air cylinder is installed in the main air cylinder, and the main air cylinder and the auxiliary air cylinder are connected with the same piston rod. The piston rod is connected with a valve rod, the valve rod is connected with a sliding block, dovetail blocks are integrally connected to the two sides of the sliding block, a left gate plate and a right gate plate are arranged on the two sides of the sliding block respectively, and first dovetail grooves connected with the dovetail blocks in a clamped mode are formed in the side, facing the sliding block, of the left gate plate. A second dovetail groove connected with the other dovetail block in a clamped mode is formed in the side, facing the sliding block, of the right gate plate, and a supporting plate is fixedly connected to the bottom of the sliding block. The pressure relief valve has the advantage that when the pressure of the middle cavity of the valve body is too high, the inlet valve seat achieves the automatic pressure relief function.

The multi-coil multi-working-mode magnetorheological damper with the flowing mode comprises a cylinder body, a piston assembly and a magnetorheological device, the piston assembly comprises a piston rod and a sliding piston arranged on the piston rod, the sliding piston is arranged in the cylinder body in a sliding fit mode, and the magnetorheological device comprises a magnetorheological valve middle body. At least one magnetorheological valve left body is arranged on the left side of the magnetorheological valve middle body, at least one magnetorheological valve right body is arranged on the right side of the magnetorheological valve middle body, and an electromagnetic coil is arranged on the magnetorheological device; a first damping channel and a second damping channel are formed in the positions, on the left side and the right side of the sliding piston, of the cylinder body, and a third damping channel is formed in the magnetorheological device. Different magneto-rheological effects are generated through matching of different electrifying modes of the multistage electromagnetic coils, the damping effect under various working conditions is achieved, various requirements are met by changing whether all stages of electromagnetic coils are electrified or not, the working application range of the magneto-rheological valve is greatly widened, and meanwhile the machining and manufacturing cost is reduced.

The invention relates to the field of titanium alloy materials, in particular to an inactive eutectoid element regulated alpha + beta type titanium alloy and a preparation method thereof. The titanium alloy comprises the following chemical components in percentage by mass: 5.0 to 7.0 percent of Al element, 2.0 to 4.0 percent of Nb element, 1.0 to 3.0 percent of Mo element, 1.0 to 3.0 percent of V element, 1.0 to 2.0 percent of Zr element, 0.5 to 3.0 percent of Fe element and the balance of Ti. The preparation process of the titanium alloy comprises the steps of electrode pressing, cast ingot preparation, high-temperature homogenization treatment, forging, rolling, solution treatment and aging treatment. The strength and toughness of the titanium alloy are adjusted by regulating and controlling the content of the non-active strong beta stable element Fe, the alpha + beta type high-strength and high-toughness titanium alloy with different strength levels is obtained, and the alpha + beta type high-strength and high-toughness titanium alloy can be widely applied to the important fields of aerospace, ocean engineering, weaponry, petrochemical engineering, automobile industry, biomedical treatment and the like.

The utility model relates to a flow control valve, which belongs to the technical application field of hydraulic plunger pumps and comprises a valve body, a push rod arranged in the valve body, a valve core partially arranged in the valve body and capable of providing stable output force for the push rod, and an electromagnet arranged at one end of the valve body and capable of driving the valve core to move in the valve body. After the pressure difference of the flow valve of the load-sensitive pump is set, current is output to the electromagnet through the electric controller, the electromagnet keeps constant output force under the corresponding current and acts on the left side of the balance valve element through the push rod, equivalently, the set pressure difference is reduced, the output flow of the load-sensitive plunger pump is reduced, and the purposes of equipment micro-motion or accurate control are achieved.

The invention relates to the field of photovoltaic equipment, and discloses a high-productivity PECVD (Plasma Enhanced Chemical Vapor Deposition) system suitable for plating various film layers and a coating process thereof, and the PECVD system comprises a sheet feeding preheating cavity, a one-stop coating module and a cooling sheet discharging cavity which are sequentially connected through gate valves. The sheet inlet preheating cavity comprises a sheet inlet and outlet stacking cavity and a heating plate, and the cooling sheet outlet cavity comprises a sheet inlet and outlet stacking cavity and a cooling plate. The one-stop film coating module comprises an isolation cavity and a plurality of process cavities for coating different film layers, and the isolation cavity is arranged between two adjacent process cavities through a gate valve; and each process cavity comprises a plurality of deposition cavities which are communicated with one another and can work independently. And a stack lifting mechanism is arranged in each of the in-and-out wafer stack cavity and the isolation cavity. The coating process adopts the PECVD system and comprises the following steps: S1, feeding and preheating; s2, film coating is conducted, specifically, a one-stop film coating mode is adopted for film coating, and an isolation process is set; and S3, cooling and discharging. According to the invention, the length of a production line can be shortened, the equipment and land occupation cost is saved, and the productivity efficiency can be improved.

The utility model provides a 3D printing resin bottle blowing mold structure which comprises two half bottle body molds and a bottle bottom mold which are formed through 3D printing, the two half bottle body molds and the bottle bottom mold are oppositely combined to form a bottle blowing mold, and a bottle blowing cavity is formed in the bottle blowing mold; the mold shell can enable the two half bottle body molds and the bottle bottom mold to be oppositely combined, and the mold shell is arranged on the circumferential outer side of the bottle blowing mold in a surrounding mode; wherein the mechanical strength of the mold shell is greater than that of the bottle blowing mold. According to the 3D printing tree bottle blowing mold structure, the strength defect of a resin mold can be overcome, rapid forming of a bottle blowing mold and a sample bottle is achieved, then appearance evaluation and performance testing of a plastic bottle are facilitated, and the development period of the PET plastic bottle is shortened.

The invention relates to the technical field of coating processing, and discloses a coating production line, the coating production line is used for coating a workpiece needing to be coated for multiple times, and the coating production line comprises a feeding station used for feeding the workpiece for the first time; the unloading station is arranged at the downstream of the loading station and is used for unloading the workpiece which is coated for the last time; the coating mechanism is arranged between the feeding station and the discharging station and is used for coating the workpieces; the workpiece identification device is used for acquiring coating processing information of the workpiece; the branch processing station is arranged between the coating mechanism and the discharging station, a discharging line is formed between the branch processing station and the discharging station, and a secondary feeding line is formed between the branch processing station and the coating mechanism; the workpieces located on the branch machining stations can be transferred to the discharging line or the re-feeding line according to the coating machining information of the workpieces. According to the coating production line, the coating processing efficiency of the thread sleeve can be improved.

The utility model discloses a differential mechanism half axle gear gap detection device, its characterized in that: including work table, measuring mechanism, compacting mechanism, thrust reset mechanism, open mechanism, with the upper positioning assembly and lower positioning assembly of differential mechanism cooperation. The utility model structure has compact overall structure, and strong compatibility, and convenient and fast operation, and adjustment function is convenient, can be suitable for a variety of model differential mechanism half axle gear gap detection, saves production manufacturing cost, and has higher equipment practicality and comprehensive utilization rate simultaneously.

The invention discloses an impact-resistant large ceramic impeller and a machining method thereof.The impact-resistant large ceramic impeller comprises a hub and an impeller body arranged on the hub; the impeller body is provided with a plurality of groups of outer lining plates on the radial outer side of the front cover plate or / and the rear cover plate of the impeller; the splicing position of every two adjacent sets of outer lining plates is arranged at the combination position of the blades and the front cover plate or the rear cover plate, and the two sides of each set of outer lining plates are arranged at the combination position of the blades and the front cover plate or the rear cover plate. A connecting part which is made of a silicon carbide material and is used for combining the outer lining plate into a whole is arranged between the blades and the inner side part of the front cover plate or / and the rear cover plate. The large ceramic impeller is better in structural performance and lower in production cost.

The invention provides a coated ball screw backflow device and a ball screw thereof, and is applied to the technical field of ball screws. The backflow device is provided with a bent backflow channel used for guiding a plurality of balls to conduct backflow steering in the channel, and an inward end face which abuts against the inner wall of the nut in the axial direction and is used for axially positioning the backflow device. The outward end face and the inward end face are arranged on the two sides of the backflow device in the axial direction respectively, and the sound insulation pattern is formed on the outward end face and at least roughly covers the projection area of the bent backflow channel on the outward end face in the axial direction. The sound insulation pattern comprises a plurality of sound insulation components which roughly extend outwards from the outward end face, at least some of the sound insulation components are arranged and separated into air gaps with gas thin film damping, and the air gaps are limited between the main side surfaces of the adjacent components, so that noise and structural resonance generated when the backflow device works can be effectively absorbed.

The invention discloses a TFB gasification incinerator, and relates to the technical field of gasification combustion, and the TFB gasification incinerator comprises a gasification chamber, a combustion chamber, a first heat exchange chamber, a separator and a second heat exchange chamber. Wherein the combustion chamber is located above the gasification chamber, and the bottom of the combustion chamber is communicated with the top of the gasification chamber. The first heat exchange chamber is arranged on the horizontal side of the combustion chamber, and the top of the first heat exchange chamber communicates with the top of the combustion chamber. The separator is arranged on the horizontal side of the first heat exchange chamber and communicates with the bottom of the first heat exchange chamber. The second heat exchange chamber is arranged on the horizontal side of the first heat exchange chamber and located above the separator, and the bottom of the second heat exchange chamber communicates with the separator. According to the TFB gasification incinerator, the structure is compact so that the occupied area can be reduced, the space utilization rate in the second heat exchange chamber can be increased, and meanwhile the problems of ash deposition and slag bonding of the convection heating surface in the second heat exchange chamber can be solved.

The utility model discloses a stay bar type photovoltaic assembly penetrating conductive buckle, which belongs to the technical field of photovoltaic system grounding, and comprises two penetrating sheets which are rotatably connected and a connecting rod mechanism which is connected with the two penetrating sheets, the lower ends of the penetrating sheets are provided with penetrating parts, and the penetrating parts are connected with the connecting rod mechanism. And the penetrating parts at the lower ends of the two penetrating pieces are driven by the connecting rod mechanism to expand outwards and respectively pierce the coating films of the two adjacent photovoltaic panels, so that the two adjacent photovoltaic panels are electrically connected. When two adjacent photovoltaic panels need to be electrically connected, only the conductive buckle needs to be placed in the gap between the two adjacent photovoltaic panels, and then the connecting rod mechanism is operated, so that the step of loosening and turning screws to fix wires on site is reduced, and the risk in construction is reduced.

The invention discloses a hoisting adjusting tool for assembling an upper neck tube of a fusion reactor main machine vacuum chamber, and belongs to the field of upper neck tube hoisting equipment. A normal moving platform of the hoisting adjusting tool is mounted on a radial moving platform in a linear sliding manner and comprises a moving plate mounted in a linear sliding manner; four guide wheels in an annular array are arranged on the upper surface of the moving plate, a mounting disc is arranged in the center of the array, the cylindrical side face of the mounting disc is in contact fit with the four guide wheels in a rolling tangent mode, and the mounting disc is located on the upper surface of the moving plate in a running fit mode; a transmission block is arranged on the upper surface, close to the edge, of the installation disc and connected with a first hydraulic telescopic rod installed on the movable plate. A vertical adjusting component capable of vertically moving in a telescopic mode is further arranged on the upper surface of the mounting disc, and the telescopic end of the vertical adjusting component is connected with the top of the clamping assembly. The lifting and adjusting tool for the upper neck tube of the vacuum chamber is small in occupied space, flexible to operate and high in lifting efficiency.

A cable truss, including upper chord cable, lower chord cable, cable clamp, cable clamp support arm, cable end connecting block; the two ends of the cable clamp support arm are respectively provided with a cable clamp, the cable clamp is a cylindrical structure as a whole, which is composed of upper spiral body, middle spiral body and lower spiral body, the joint of the upper spiral body and the middle spiral body is provided with an upper chord cable through hole, and the joint of the middle spiral body and the lower spiral body is provided with a lower chord cable through hole; a plurality of telescopic locking pin shafts are arranged in the upper spiral body and the lower spiral body in the vertical direction, the middle spiral body is provided with locking pin shaft insertion holes corresponding to the locking pin shafts, and the locking pin shafts are inserted and matched with the locking pin shaft insertion holes. The application solves the design problem of the cable net node, reduces the adverse effect of the unbalanced force between the cable nets on the overall structure, increases the force rationality of the node and the safety of the whole cable net, reduces the processing and manufacturing cost and the construction difficulty, and can be applied to the "sky round place" structure of the "Dream of Red Mansions" drama fantasy garden engineering.

The utility model relates to the field of rod and wire short stress rolling mills, in particular to a transmission shaft and speed reducer connecting shaft sleeve which comprises a shaft sleeve body, one end of the shaft sleeve body is provided with a first round hole used for allowing an output shaft of a speed reducer to be inserted, and the other end of the shaft sleeve body is provided with a boss integrally formed with the shaft sleeve body. And a plurality of counterbores which are used for insertion of connecting pieces and are connected with an output shaft of the speed reducer are formed in the axial direction of the boss. The connecting shaft sleeve can be selectively connected with a standard transmission shaft flange, meanwhile, the stress area of a key between the transmission shaft flange and the connecting shaft sleeve is increased, and the possibility that a connecting bolt of the transmission shaft flange and the connecting shaft sleeve is fractured due to overlarge stress is reduced.

The invention relates to the technical field of torsional spring angle detection measuring tools, in particular to a universal angle detection measuring tool and method for a central arm torsional spring, and the device comprises an outer main body, a sliding block assembly, a sliding ruler, an inner main body assembly, a centering assembly and the like. Measurement, use and operation are convenient, the measurement result is accurate, and the torsion spring structure universality and applicability are good; the measuring function of replacing the existing special angle sample block can be met, and the function of actually measuring any angle value is achieved; the processing and manufacturing number of the torsion spring angle gauge blocks is reduced, the use cost of the measuring tool is reduced, and the period of manufacturing a special measuring tool is also reduced; and the technical requirements of short production cycle, low cost and high quality at present are met.

The invention discloses an air tightness detection device for a corrugated pipe compensator. The air tightness detection device comprises a first blind flange, a second blind flange, a fastening assembly, a sealing assembly, an air exhaust connecting pipe, vacuumizing equipment, a vacuum gauge, a vacuum baffle valve, a helium mass spectrometer leak detector and an external helium spray gun. The invention also discloses a bellows compensator air tightness detection method. The method comprises the following steps: S1, assembling and sealing; s2, performing initial inspection; s3, vacuumizing is carried out; s4, maintaining pressure and observing; and S5, judging a result. The technical scheme of combining negative pressure vacuum and helium mass spectrum leak detection is adopted, the characteristics that helium molecules are small in diameter, low in background content and high in response speed are utilized, the leak detection sensitivity is extremely high and is far superior to a traditional bubble method, a negative pressure maintaining method and an SFsniffing method, high-precision detection can be stably achieved, and the leak detection accuracy is greatly improved. The device can meet the requirements of extra-high-voltage GIL pipelines, chemical high-risk medium pipelines and other scenes with extremely high requirements for sealing performance, and the reliability and accuracy of detection results are greatly improved.

The invention discloses a concentric multidirectional long-distance combined circular prism and a using method thereof, the device comprises a base and a prism positioning support arranged on the base, and further comprises a group of prism connectors used for installing the circular prism, the prism positioning support comprises a bottom cross rod, a top cross rod and a vertical rod, the bottom cross rod and the top cross rod are connected through a vertical rod, the bottom cross rod and the top cross rod are respectively provided with a vertical positioning hole used for positioning a vertical prism connector, and the vertical rod is provided with a group of transverse positioning holes used for positioning a transverse prism connector. A plurality of circular prisms can be mounted at different heights of the same plumb line of a control point, simultaneous, stable and accurate total station measurement in multiple directions is realized at the control point, one circular prism is mounted and aligned in each measurement sight line direction and then is fixed, the prisms do not need to be rotated by personnel on duty, and the measurement efficiency is improved.

The invention relates to the technical field of complementary foods, and particularly discloses a complementary food for diabetics and a preparation method thereof.The complementary food comprises, by weight, 50-80 g of lotus seeds, 50-80 g of gordon euryale seeds, 50-80 g of pomegranate rind, 40-50 g of black dates and 100-200 g of auxiliary meat loaves, and the auxiliary meat loaves include but not limited to pork tenderloin and lean meat. Comprising the steps of material preparation, material wrapping, tile pot decoction and the like, various traditional Chinese medicinal materials and auxiliary meat blocks are scientifically matched for simple processing and decoction, so that the purpose of controlling blood sugar is achieved, meanwhile, the raw materials are convenient to obtain, the processing and preparation cost is low, the effect of enhancing immunity can be achieved while sugar metabolism of the body is improved, and the health care effect is achieved. The feed is beneficial for reducing oxidative stress, protecting cells from being damaged, promoting digestion and supplementing nutrition, and is convenient for large-area popularization and application.

The application provides a structure feature driven multi-stage multi-class hierarchical screening bolt automatic sorting system and method, and belongs to the technical field of industrial standard part sorting. The system comprises five core modules, namely, a reciprocating bolt stepping transmission module, a reciprocating bolt stepping thread diameter sorting module, an infrared detection fluid driven bolt length sorting module, a bolt automatic sorting system shell and a bolt classification storage module. When batch bolts are sorted, the reciprocating stepping transmission can realize smooth conveying of bolt sequence, the mechanical structure design can realize primary screening of bolts according to thread diameters, the infrared detection and air knife driving can further realize secondary screening of bolts with the same diameter according to thread lengths, and finally, accurate and efficient sorting of batch bolts can be realized by cooperating with the classification storage device. The application adopts mechanical structure design and automatic control, has the advantages of high sorting precision, stable operation, strong anti-interference ability, low manufacturing cost and the like, and can adapt to the batch continuous sorting needs of small and medium-sized bolt classification plants.

The utility model belongs to the technical field of mineral separation sampling, and provides an intermittent mineral separation sampler which comprises a driving element, a cam, a rocker, a guide pipe, an adjusting pipe, a sampling spoon and a controller. The two cams are symmetrically arranged, and the two cams are rotationally connected to the two sides of the driving element; connecting columns are symmetrically arranged at the ends, deviating from the output shaft, of the two cams; the two rocking bars are symmetrically arranged, and one end of each rocking bar is rotationally connected with the connecting column; a transmission rod is fixedly arranged on the adjusting pipe, and the two ends of the transmission rod are rotationally connected with the other ends of the two rockers correspondingly. The end, away from the guide pipe, of the adjusting pipe is fixedly connected with the sampling spoon. The driving element drives a crank rocker structure composed of the cam, the rocker arm and the adjusting pipe to reciprocate, meanwhile, the controller controls the time of the motor to achieve intermittent work, and then the sampling spoon automatically and intermittently collects raw ore samples on the belt.

The utility model belongs to the technical field of mobile energy storage, and relates to a mobile portable energy storage box shell which comprises an upper shell, a lower shell and a lifting handle, the lifting handle is U-shaped, and the two ends of a U-shaped opening of the lifting handle are rotationally connected to the two short side edges of the upper shell; the opening direction of the cross section groove of the handle faces the outer side of the holding direction of the handle, a cover plate is buckled on the cross section groove of the handle in a buckled mode, and the outer side face of the cover plate is flush with the upper edge of the cross section groove of the handle. Rib plates parallel to the cross section are evenly distributed in the groove shape of the handle in the length direction of the handle, and reinforcing ribs perpendicular to the cross section are arranged in the groove shapes of rotating connection sections at the two ends of a U-shaped opening of the handle. The cover plate is detachably connected and fixed to the handle through a buckle. The mobile portable energy storage box shell can be light and reliable, and due to the assembly type structure, the machining and manufacturing cost is lower; the number of assembly parts of the mobile portable energy storage box shell is reduced, the cost reducing and efficiency increasing effects are obvious, and meanwhile the reliability and the strength can be guaranteed.

The utility model belongs to the technical field of axial flow fans, and particularly relates to a suspension type permanent magnet synchronous axial flow fan which comprises a box body, air inlets, a console, a frequency converter and a fan, the air inlets are arranged on two sides of the box body in the width direction, the interior of the box body is divided into a frequency converter cabin, a fan cabin and a control cabin, and the frequency converter is installed in the frequency converter cabin. The side, close to the control cabin, of the frequency converter cabin is provided with a first ventilation opening, the side, away from the control cabin, of the frequency converter cabin is provided with a second ventilation opening, the frequency converter cabin is located above the fan cabin and connected to the top of the box body, the fan is installed in the fan cabin through a support, the output end is connected with the air outlet pipe, the air outlet pipe is connected to the box body through a flange, and the console is arranged in the control cabin. Compared with the prior art, the frequency converter cabin is arranged above the motor, so that the space of the fan cabin is fully utilized, and the size of the whole machine is reduced; by optimizing the air inlet channel, air flows through the motor more evenly through air inflow of the two sides of the fan cabin, the vortex area of the fan cabin is reduced, and the heat dissipation efficiency is improved.

This application discloses a modular seating backrest, including a back cushion unit and a lumbar cushion unit. The bottom of the back cushion unit has a stepped transition, and the back cushion unit includes a downwardly extending splicing portion, with a splicing groove formed at an inwardly recessed position relative to the splicing portion. The top of the lumbar cushion unit also has a stepped transition, and the lumbar cushion unit includes an upwardly extending mounting portion, with a mounting groove formed at an inwardly recessed position relative to the mounting portion. When the back cushion unit and the lumbar cushion unit are combined, the splicing portion fills the mounting groove, and the mounting portion fills the splicing groove. The splicing portion and the mounting portion are connected front to back, and are detachably connected by a quick-release structure. The modular seating backrest provided by this application, by setting the bottom of the back cushion unit and the top of the lumbar cushion unit as a stepped structure, not only makes the two fit more tightly and has higher connection strength, but also has a simple structure and low processing and manufacturing costs; furthermore, after packaging, the splicing portion and the mounting portion will not protrude outwards, ensuring packaging quality.

The utility model discloses a roller conveying line tray in-place signal induction device, and relates to the technical field of conveying devices, in particular to a roller conveying line tray in-place signal induction device. A sliding chute is fixed on the side wall of a frame on one side of a roller conveying line through a bolt; a proximity switch is assembled on the sliding groove. One end of the unpowered roller is fixed on the frame side wall on one side, far away from the sliding chute, of the roller conveying line through a bolt, and the other end is provided with a sliding structure; the sliding structure is installed in the sliding groove and can slide up and down in the sliding groove. The sliding structure is further connected with a reset structure assembled at the bottom of the sliding groove. According to the technical scheme, the problems that in the prior art, due to the fact that a photoelectric switch adopted in the prior art is different in tray material, overall dimension and the like, signals are not sent or sent by mistake, corresponding stations of the automatic conveying line do not act or act mistakenly, the overall conveying efficiency or overall shutdown of the automatic conveying line is affected, and the production cost is lowered are solved. And even dangerous accidents are caused.

The utility model provides a kind of electric drive axle tube press fitting device, belong to the technical field of automobile parts processing and manufacturing, it includes upper pressing positioning device, lower positioning device and guiding reset device;The upper pressing positioning device includes upper connecting plate, and upper connecting plate top is provided with upper pressing plate, and upper connecting plate lower is provided with the upper positioning disc with upper positioning pin;Multiple magnets are provided on the upper positioning disc;The lower positioning device includes lower connecting plate, and lower positioning disc is provided on lower connecting plate;The guiding reset device includes guide column, and upper limit plate, guide sleeve, spring pressing block, reset spring, spring limit block, lower positioning seat are respectively provided on guide column;It further includes support seat, and support seat lower is matched with lower connecting plate, and upper is provided with limit block.This device is a kind of more flexible device, can realize the press fitting of different specifications left and right shaft tube assembly, satisfies sample piece submission cycle while ensuring product quality.

The present invention discloses an excavation resistance test device and a test method for an excavator, which belongs to the field of engineering machinery. The test device includes: an excavator mobile test device, an excavator body, a fixing device, two sets of tensioning components, a pressure sensor, and a tension sensor. The excavator body is fixedly mounted on the excavator mobile test device, the fixing device is fixedly mounted on the foundation and corresponds to the front and rear ends of the excavator body respectively, the two sets of tensioning components are respectively connected to the fixing device and the two ends of the excavator body, a plurality of pressure sensors are arranged at the bottom of the excavator mobile test device, and the tension sensor is fixedly mounted on the tensioning component for detecting tension changes; the tension sensor and the plurality of pressure sensors are respectively electrically connected to a data acquisition device for obtaining input data for calculating the excavation resistance. The present invention can accurately measure the excavation resistance of the excavator under different excavation postures during operation in real time, and provide a visual data reference for the operator.