250results about How to "Avoid compromising stability" patented technology

The invention provides a reverse flow combustor allowing a wider range of stable running. The reverse flow combustor comprises a diffuser, a combustor casing, a flame cylinder head end wall, a flame cylinder outer wall, a flame cylinder inner wall, a large elbow and a head atomizer. Air enters the combustor through the diffuser; part of the air enters a flame cylinder through the head atomizer; another part of the air enters through a main combustion hole of the flame cylinder and a mixing hole thereof, the remaining enters from a cooling structure. The air and fuel fully mix and combust in the flame cylinder. After passing by two 180-degree turns, the air leaves the combustor. The head atomizer performs atomizing in a mixed mode of pressure centrifugal atomizing and pre-swirling prior to pre-film air atomizing; the fuel is fed through a main oil circuit and an auxiliary oil circuit; the main combustion hole arranged in the outer wall of the flame cylinder and the mixing hole thereof are provided with a hood, jets are avoided flowing to the head, and inner and outer jets are ensured being symmetrical. The range of stable running of the reverse flow combustor can be expanded, and uniformity of fuel gas temperature of an outlet is guaranteed.

A multi-waveform impulse current generator comprises a charge circuit and a discharge circuit. The charge circuit comprises a main transformer T, a high-voltage silicon stack G1, a high-voltage silicon stack G2, a switch K, a charging protection resistor RP, a direct current resistance voltage divider RF and a main capacitor CZ. The discharge circuit comprises the main capacitor CZ, a non-inductive resistor, a wave modulated resistor, a wave modulated inductor, a discharge gap GAP and a tube shunt Rs. The aim of adjusting the waveforms of the impulse current is achieved by adjusting the inductance of the wave modulated inductor and the resistance of the wave modulated resistor in the discharge circuit. The generator can generate the following three different impulse current waves: 1 / 5mu S, 8 / 20 mu S and 4 / 10 mu S, and can realize that one equipment generates 3 waveforms. Compared with the equipment required for generating the standard lightning impulse current wave, switching impulse current wave and steep wave impulse current wave, the generator can save the equipment in bulk, lower the cost, reduce the floor space of the equipment and improve the use ratio of the equipment.

Characters are that the under voltage lock down circuit (UVLDC) includes a voltage sampling circuit (VSC), a temperature compensation circuit (TCC), a buffer circuit, and a feedback circuit. After sampling first voltage source, VSC provides voltage-sampled signal to TCC. Shaping the output signal from TCC, buffer circuit outputs the output signal of UVLDC. TCC makes threshold value of flip-flop of UVLDC not be influenced by temperature. The buffer circuit provides a feeding point. Being connected between the feeding point and VSC, the feedback circuit is in use for realizing retardation function of circuit. Beneficial effect is that inductive band-gap reference circuit makes temperature coefficient value of threshold value of flip-flop of UVLDC be zero theoretically so as to prevent temperature drift of threshold value. Thus, the invention raises precision, stability and reliability of system.

The invention relates to a liquid epoxy encapsulating material and a preparation method thereof. The liquid epoxy encapsulating material consists of the following raw materials in part by weight: 20 to 25 parts of epoxy resin, 35 to 40 parts of alicyclic epoxy resin, 0.5 part of pigment, 160 to 220 parts of spherical filler, 4 to 6 parts of curing agent, 0.5 to 2 parts of accelerator and 1 to 3 parts of coupling agent. The preparation method of the liquid epoxy encapsulating material comprises the following steps of: roasting the epoxy resin at the temperature of between 70 and 75 DEG C overnight; mixing 20 to 25 weight parts of roasted epoxy resin, 35 to 40 weight parts of alicyclic epoxy resin and 0.5 weight part of pigment at the temperature of between 20 and 30 DEG C for 20 to 40 minutes; adding 160 to 220 weight parts of spherical filler, 4 to 6 weight parts of curing agent, 0.5 to 2 weight parts of accelerator and 1 to 3 weight parts of coupling agent into the mixture; placing the mixture into a three-roll machine to cure and mix; mixing for three times repeatedly; and after the materials are mixed uniformly, adding the mixture into a reaction kettle to keep the filled vacuum for 90 minutes.

The invention discloses an easily-removing implant device and a screwing-out tool thereof. The easily-removing implant device comprises an implant, a base station and a central bolt; the easily-removing implant device is characterized in that the implant comprises a gum-penetrating neck part and a head part, wherein a thread is formed on the outer surface of the head part, at least two spiral self-tapping grooves are also formed in the outer surface of the head part, a connecting hole coaxial with the implant is formed in the implant, the connecting hole comprises a tapered hole, an anti-rotation hole, an implant taking-out section and a blind threaded hole, which are sequentially connected coaxially, the base station comprises a dental crown connecting section and an implant connecting section, the implant connecting section comprises a conical table and an anti-rotation column, a stepped hole matched with the central bolt is formed in the base station, and the central bolt penetrates through the stepped hole to be connected with the blind threaded hole, so that the base station and the implant are fixed integrally. According to the easily-removing implant device, the implant taking-out section with a reverse thread is additionally arranged in the implant, the problem that a part of the implant, which is remained in dentale due to fracture of the implant, is difficult to take out is solved, and the easily-removing implant device has the advantages of simple structure, strong practicability, and the like.

The invention relates to a method for producing ammonium sulfate in an S-NPK device by using refined phosphoric acid byproduct tail liquid. The refined phosphoric acid byproduct tail liquid, concentrated sulfuric acid and diluted phosphoric acid are sufficiently mixed in a hydrogen potassium conversion tank, the mixed acid materials after being mixed enter a mixed acid storage tank and take reaction with gaseous ammonia in a tubular reactor, the obtained slurry then takes neutralization reaction with the concentrated sulfuric acid in a neutralization tank, and finally, finished ammonium sulfate products can be obtained through slurry spraying granulation, drying and sieving. The method has the advantages that the wet process phosphoric acid refined industrial phosphoric acid byproduct tail liquid, the concentrated sulfuric acid, the diluted phosphoric acid and the gaseous ammonia are directly used as raw materials, the recovery problem of the wet process phosphoric acid refined industrial phosphoric acid byproduct tail liquid is solved, the product manufacture cost is reduced, and the byproduct flow process during the phosphoric acid refining is reduced; and the S-NPK device is used for producing the ammonium sulfate, the investment cost is reduced, the device utilization rate is improved, and the economic benefits are good.

The invention relates to a mounting and clamping device and method applicable to bent pipe welding and belongs to the technical field of bent pipe welding assembling. The mounting and clamping universal device provided by the invention has five degrees of freedom and can be conveniently and flexibly adjusted. The requirements for welding, mounting and clamping of a bent pipe can be met just by adjusting the axis of a welding position of the bent pipe to coincide with the rotation axis of a rotary disk of the device. Thus, the mounting and clamping device has no limitations to the bending angle and the spatial location of the guide pipe and is high in adaptability. The bent pipe mounting and clamping universal device is simple in structure, convenient to machine, low in manufacturing cost and beneficial to application and popularization in the practical production process.

The invention provides a pressure sintering furnace with a rapid cooling function. The pressure sintering furnace with the rapid cooling function comprises a draught fan, heat exchangers, gas diversion covers, airflow diversion plates, cooling water inlet and outlet pipes, a furnace shell water jacket, thermal insulation door air cylinders, material box door air cylinders, furnace doors and a furnace body. Thermal insulation doors, material box doors, thermal insulation cylinders and a high temperature product area are arranged in the furnace body; and material boxes are arranged in the high temperature product area. The draught fan and the heat exchangers are installed on the furnace doors; the heat exchangers are connected with the cooling water inlet and outlet pipes correspondingly; the gas diversion covers are installed on the corresponding thermal insulation doors and attached to the corresponding thermal insulation cylinders; the airflow diversion plates are uniformly distributed on the periphery of the inner wall of a furnace shell; the cooling water inlet and outlet pipes communicate with the furnace shell water jacket, and the furnace shell water jacket is located between the furnace shell and the inner wall of the furnace body; carbon felt doors and the material box doors are of a double-air-cylinder independent opening-closing structure; and the thermal insulation door air cylinders and the material box door air cylinders are installed on the corresponding furnace doors and connected with the thermal insulation doors and the material box doors correspondingly. The pressure sintering furnace with the rapid cooling function is stable and reliable in using, improves production efficiency and product quality, and is especially suitable for sintering of small-sized hard alloy products.

The invention relates to the technical field of sewage treatment equipment, and particularly relates to a high-efficiency electrocoagulation device for sewage treatment. A cell body is an insulated cell body, and the cell body is internally provided with an electrode flocculation device; the electrode flocculation device is formed by stacking a plurality of electrode flocculation modules in the cell body; the electrode flocculation module A is formed by installing a plurality of parallel electrode plates in a reticular basket; the inner surfaces of both ends of the cell body are provided with a No.1 pole plate and a No.2 pole plate; a slag scraping device is arranged above the electrode flocculation device, and the slag scraping device is formed by driving a slag scraping shaft through a motor; the slag scraping shaft is provided with a flexible slag scraping plate; the cell body, which is positioned on one end of the electrode flocculation device, is internally provided with a conical floating slag containing area; the conical floating slag containing area is communicated with a slag discharge cell through a No.1 channel; and the bottom of the slag discharge cell is provided with a slag discharge port, so that waste water is electrolyzed for more than two times to be sufficiently treated, the stability is prevented from being influenced due to the change of a water inlet source, and the quality of effluent water is ensured. The high-efficiency electrocoagulation device disclosed by the invention has the advantages of easiness and convenience for operation, stability in operation, small occupied area, energy conservation and convenience for scientific management.

The invention provides a three-dimensional focused-flow micro-fluidic chip used for synthesis of liquid drops and a preparation method thereof. The chip comprises a continuous-phase layer and a dispersed-phase layer; the continuous-phase layer comprises a continuous-phase channel, a continuous-phase fluid storage tank, an anti-blockage array structure, a fluid output channel and a fluid outlet; the dispersed-phase layer comprises a dispersed-phase channel, a dispersed-phase fluid storage tank and a contraction port; the continuous-phase channel begins at the continuous-phase fluid storage tank, passes through the anti-blockage array structure and is then divided into two branch continuous-phase channels which are symmetrically located at two sides of the dispersed-phase channel and intersect and communicate with each other at the outlet of the dispersed-phase channel, and then the continuous-phase channel enters the fluid output channel via the contraction port; the width of the contraction port is less than the width of the dispersed-phase channel; and the depth of the continuous-phase channel is greater than the depths of the dispersed-phase channel and the contraction port, and the outlet of the continuous-phase channel is located at the center of the continuous-phase channel in transverse and depth directions. The micro-fluidic chip can easily generate focused flow and stably produce submicron liquid drops.

The invention relates to a direct-current charging pile, which comprises a cabinet body of a cuboid frame structure. The front side, the rear side, the left side and the right side of the cabinet body are respectively provided with a front cabinet door, a rear cabinet door, a left cabinet door and a right cabinet door, wherein the front cabinet door, the rear cabinet door, the left cabinet door and the right cabinet door are connected with the cabinet body in the rotatable manner. A rectifying chamber and a control chamber are arranged in the cabinet body. The rectifying chamber is located in the upper part of the cabinet body. A rectifying module is arranged in the rectifying chamber. The control chamber is located in the lower part of the cabinet body. A primary control device and a wire outgoing busbar are arranged in the control chamber. A charging gun is hung onto the surface of the cabinet body. According to the technical scheme of the direct-current charging pile, equipment is arranged in different partitions inside the cabinet body, and the rectifying module higher in calorific value is arranged in an independent area. Therefore, the heat can be dissipated conveniently during the charging process, so that the stability of the primary control device is not influenced by the heat radiated by the rectifying module during the charging process. Meanwhile, based on the partitioned arrangement, the isolation effect is better and the operation safety is improved. The electromagnetic interference is reduced and the entire periphery of the cabinet body can be opened. As a result, the cabinet is convenient in installation and maintenance.

The invention discloses a residual power line winding device for screw rod sliding block type stator assembly production. The residual power line winding device for screw rod sliding block type statorassembly production comprises a base, a stable base, a first drive motor, a winding reel, a leading ring and a second drive motor. The stable base is arranged on the lower ends of support rods; the winding reel is rotatably installed between an output shaft of the first drive motor and a connecting shaft through a coupler; and the leading ring is further welded to the upper side of an upper slidesleeve. During winding, the leading ring moves left and right so as to play a role in guiding a power line, so that the occurrence of a twisting phenomenon can be effectively avoided; meanwhile, thepower line can be uniformly wound on the winding reel so as to be prevented from being fully wound at a certain position on the winding reel; and compared with manual winding, the winding speed is faster, the working efficiency is greatly improved, a product takt is accelerated, and the replacement speed is improved.

The invention discloses a medical image processing system based on a micro-service framework. The system comprises a management background, an operation foreground and a gateway communication based onmedical information transmission, and the management background and the operation foreground are in communication connection through a gateway based on medical information transmission. According tothe invention, any type of algorithm can be accessed at extremely low cost, the system iMips disclosed by the invention forms an available product which can be directly delivered to the user end, so that the doctor can provide image data analysis and provides a solution for intelligent analysis of medical images, the algorithm programs in different languages and with different functions are organized and managed in an extremely loose structure to form a set of good algorithm competition ecosystem, and the requirements of the medical image analysis dynamic real-time scheduling algorithm are met. Meanwhile, a cross-platform and cross-screen foreground is designed, an image analysis processing result can be presented to a doctor on a plurality of instruments, so that the development and maintenance cost of medical image analysis software is reduced.

The invention discloses a data chain channel allocating method for automatic formation of an unmanned air vehicle, comprising the following steps: firstly, defining a data chain time slot structure; and then allocating time slot; finally, performing dynamic time slot reservation. According to application condition and requirement of the system, the invention provides a compound dynamic TDMA mechanism channel allocating method based on a fixed allocation and a reservation mechanism and solves different requirements of all the nodes of the system for updating the information; different channel allocation techniques are adaptively applied according to the sum of different network nodes, thereby promoting the channel output of the system in each period, bringing in node circulation auxiliary protocol, avoiding high requirement for synchronization of the time slot, and promoting the stability of overtime system when data frame is sent by part of nodes. Thus, the resource of the system is utilized to the most extent.

The invention provides a hydrothermal ageing device for multi-sample parallel catalyst which is characterized by comprising a sand bath heating system, wherein the circumstances of hydrothermal ageing reactors are evenly arranged in the sand bath furnace of the sand bath heating system; the sedimentation section of each hydrothermal ageing reactor is exposed out of the sand bath furnace; the fluidization section of the hydrothermal ageing reactor is dipped in the quartz sand of the sand bath furnace; each hydrothermal ageing reactor conveys a fluidizing medium and gas respectively by virtue of an independent water feeding pump and a gas flow controller; all hydrothermal ageing reactors are lifted or lowered by a reactor lifting mechanism; the waste gas outlets of the sedimentation sections of the hydrothermal ageing reactors are all connected with a tail gas cooler; and the tail gas cooler is connected with a separation tank. Comprehensively, the hydrothermal ageing device can realizethe purpose that multiple reactors are operated in parallel under the working condition of consistent ageing condition; and the hydrothermal ageing device is good in repeatability and stability and can be widely applied to the hydrothermal processing experiment of the catalyst.

The invention belongs to the field of fuel cells, and particularly discloses a combustor for a medium-high temperature solid fuel cell and an application thereof. An air inlet and a fuel inlet are arranged at an inlet end of a static mixing cavity in the combustor and are used for mixing air and fuel to obtain mixed gas; a shunting orifice plate is connected with an outlet end of the static mixingcavity to provide a buffer area for the mixed gas and shunt the mixed gas; a metal mesh structure is connected with the shunting orifice plate, so that the phenomena of tempering and flamelifting areprevented; a combustion chamber is arranged on the outer side of the static mixing cavity and provides a space for mixed gas combustion; and a pulse igniter is arranged above the metal mesh structureand used for igniting the mixed gas. According to the combustor, the shunting orifice plate is utilized to provide the buffer area for the high-flow-rate mixed gas, meanwhile, flame generated by combustion is divided into a plurality of fine flame flows by utilizing the metal mesh structure, and stable gas flow and temperature gradient are formed, so that the phenomena of the tempering and flamelifting are prevented.

The invention discloses a device for precisely adjusting a steel supporting pre-exerted axial force of a foundation pit and a loading method thereof and relates to the technical field of building foundation pit bracing. The assembled device is fixed between two connecting tie beams, an axial force value needing to be exerted is set through a control panel, the adjusting device is started, a hydraulic jack ejects and compresses fixing steel plates with the value 18%-22% of the pre-exerted axial force value under the effect of a hydraulic pump, and the fixing steel plates produce relative displacement. When a force measuring sensor feeds back that the axial force exerted to the fixing steel plate reaches a set value 18%-22% of the pre-exerted axial force value, the hydraulic pump stops actions, the hydraulic jack increases 8%-12% of pre-exerted axial force value based on an original pressure value to exert pressure on the fixing steel plates after the pressure is stabilized for 5-10 minutes, the fixing steel plates are stabilized for 5-10 minutes after the fixing steel plates do not move, and the operation is repeated in this way. Finally, the axial pressure value between the two fixing steel plates reaches 60%-70% of the pre-exerted axial force value through one-time loading, connecting sleeves are adjusted after stabilization for 0.5-1 hour are ejected and compressed on the endfaces of fixing columns, and thus the loading process is completed.

The invention relates to a high-stability F-P optical fiber acoustic sensor which comprises a distributed feedback single-mode semiconductor laser and a sensing head, wherein the distributed feedback single-mode semiconductor laser is provided with tail fiber output. The high-stability F-P optical fiber acoustic sensor is characterized in that the distributed feedback single-mode semiconductor laser is connected with a polarization control device, the polarization control device is connected with the PC (Physical Contact) head of a PC-APC (Physical Contact-Angled Physical Contact) movable connecting head, the APC head of the PC-APC movable connecting head is connected with an optical isolator, the optical isolator is connected with an optical depolarizer, the optical depolarizer is connected with the first port of a coupler through an optical fiber, the second port of the coupler is connected with the sensing head through a single-mode optical fiber, the third port of the coupler is connected with a signal processing and output unit through a photoelectric detector, and an antireflection film is plated on the fourth port of the coupler 6. The sensor has the characteristics of convenient regulation, high sensitivity and signal-to-noise ratio, strong anti-interference capability, good stability and the like.

The invention discloses a monitoring data obtaining method. The monitoring data obtaining method comprises the following steps of: obtaining monitoring data of a monitoring task corresponding to a monitoring item in a timed manner; storing the monitoring data in an appointed cache region; and, when an inquiry instruction is received, extracting corresponding monitoring data from the appointed cache region. When a user needs to check the monitoring data, the monitoring data of the monitoring item is directly obtained from the cache region corresponding to the monitoring item, so that the monitoring data of the monitoring item can be rapidly obtained; and namely, due to a monitoring data cache mechanism of a background monitoring item, the problem that the stability, the usability and the friendliness of the system are influenced due to the fact that the foreground page request is timed out when a network is not good or the monitoring data obtaining time through a protocol is long can be avoided. The invention further discloses a monitoring data obtaining device and a computer, having the above benefits.

The invention discloses a residual power cord winding device for gear matching type stator assembly production. The residual power cord winding device for gear matching type stator assembly productioncomprises a base, a stabilization base, a first drive motor, a winding reel, a lead wire coil and a second drive motor; the lower ends of supporting rods are provided with the stabilization base; thewinding reel is rotationally installed between an output shaft of the first drive motor and a connection shaft through a coupling; and the lead wire coil is also welded to the upper side of an uppersliding sleeve. During winding, the lead wire coil moves from left to right and has the guide effect to a power cord, so that the knotting condition can be effectively avoided; meanwhile, the windingreel can also be uniformly wound with the power cord, so that the power cord is avoided from being wholly wound at some a position of the winding reel; and compared with manual winding, by adopting the residual power cord winding device, the winding speed is rapider, the working efficiency is greatly improved, the production takt is accelerated, and the changeover speed is increased.

The invention discloses a feed stirring device, and relates to the technical field of agricultural machinery. The feed stirring device comprises a box body, wherein a vertical reciprocating mechanismis arranged on the box body; the lower end of the vertical reciprocating mechanism is equipped with a lifting rod; a rotary wheel is arranged on the lifting rod; a horizontal reciprocating mechanism is arranged on the box body; the lifting rod is connected with a processing device; the processing device comprises a filter plate, a crushing room and a raw material room; the crushing room comprisesa crushing gear and a crushing cavity; the crushing cavity consists of partition plates, wherein racks are arranged the partition plates, and the partition plates are rotatably connected with a stirring plate; the raw material room comprises a sleeve; a slide plate is arranged at the upper end of the sleeve; a resisting spring is arranged between the slide plate and the sleeve; two containing plates are rotatably connected under the sleeve; a fixed column is arranged outside the sleeve; the fixed column is fixedly arranged on the inner wall of the box body; the bottom of the box body is equipped with a fan; and a raw material inlet and outlet is formed in the outer side of the box body. With the adoption of the technical scheme, the feed stirring device overcomes the problems that existingstirring machinery cannot crush and stir simultaneously, and is uneven in stirring, and can be used for stirring feed in a farm.

The invention discloses fiber-reinforced renewable concrete and a preparation method thereof. The fiber-reinforced renewable concrete is prepared from the following components in parts by weight: 22 to 27 parts of cement, 6 to 8 parts of coal ash, 50 to 54 parts of stones, 50 to 54 parts of renewable coarse aggregates, 40 to 42 parts of fine aggregates, 1 to 3 parts of fibers, 2 to 5 parts of rubber particles, 1 to 2 parts of water reduction agent, and 16 to 20 parts of water. The renewable coarse aggregates are sourced from four waste concrete of different service lives. The invention also discloses a preparation method of the fiber-reinforced renewable concrete. On the basis of improving the basic composition of the renewable aggregates, the composite fibers of a specific ratio and nanomineral powder are added, so that the performance of the concrete is further improved, and the reduction of the concrete performance caused by the use of a great of renewable aggregates (50 percent) can be avoided by virtue of multiple measures.

The invention discloses a balancing device for a battery pack. The battery pack comprises a plurality of single batteries connected in series, wherein the balancing device comprises a voltage acquisition module, a current acquisition module, a master control module, a charge balancing circuit and a discharge balancing circuit; the voltage acquisition module is used for detecting single voltage ofthe battery pack; the current acquisition module is used for detecting the magnitudes and directions of charge and discharge current; the master control module is used for computing the mean voltage of the battery pack, determining the charge and discharge conditions of the battery pack, outputting a charge balancing signal during charging if the single voltage exceeding a limit value exists in the battery pack, and outputting a discharge balancing signal during discharging in a static state if the single voltage which is decreased exists in the battery pack; the charge balancing circuit is used for carrying out charge balancing on the corresponding single battery according to the charge balancing signal; and the discharge balancing circuit is used for carrying out discharge balancing on the corresponding single battery according to the discharge balancing signal. Therefore, the condition that the stability is affected by the consistency problem of the single batteries is effectively avoided.

The invention relates to a cooling system of an air-conditioner pipeline, in particular to a thermoelectric cooling system for the super-cooling section of an air-conditioner condenser. The thermoelectric cooling system comprises the condenser. The inlet end of the condenser is connected with a compressor through an exhaust pipe, the compressor is connected with an evaporator through a gas return pipe, the outlet end of the condenser is connected with a throttling device through a pipeline, the throttling device is connected with the evaporator through a pipeline, and therefore a circulation pipeline is formed. The thermoelectric cooling system is characterized in that a first-stage super-cooling pipe is arranged in the condenser and is connected with a second-stage super-cooling pipe arranged outside the condenser, the second-stage super-cooling pipe is connected with the throttling device through a pipeline and is arranged in a heat pipe heat exchanger, and cooling fins are arranged in the heat pipe heat exchanger. According to the invention, the cooling fins and the heat pipe heat exchanger are arranged for actively cooling the second-stage super-cooling pipe, and the shortcoming that poor heat exchange and different use environment temperature cause change of the super-cooling temperature and then influence the stability of heat exchange and the efficiency of heat exchange is overcome.

The invention provides a device for realizing period-modulated flat-topped pulses, which comprises a polarized light source, an electro-optical switch, a 1 / 2 wave plate and a polarizing device, wherein the polarized light source is suitable for providing polarized light to be modulated; the electro-optical switch comprises an electro-optical crystal and an electro-optical driving power supply, and the electro-optical crystal is suitable for rotating the phase of the input polarized light for pi when voltage is applied to the electro-optical crystal; the 1 / 2 wave plate is suitable for rotating the phase of the polarized light output by the electro-optical switch for pi; and the polarizing device is suitable for selectively outputting the received polarized light according to the polarization state of the polarized light. The device for realizing period-modulated flat-topped pulses is characterized in that the electro-optical driving power supply is used for periodically applying half-wave voltage to the electro-optical crystal, so that the polarization state of the polarized light output by the electro-optical crystal is periodically changed, and the 1 / 2 wave plate is suitably shifted out and shifted in an optical path through a driving device. The device realizes the optical regulation for output power / energy, a pump source current does not need to be changed, and therefore the heat focal length of the inner part of a laser device cannot be changed to influence the system stability. Meanwhile, the accuracy is higher, and the tunability is stronger.

The invention belongs to the technical field of bridge expansion joint alarm and especially relates to bridge expansion joint alarm equipment for road engineering. The equipment comprises a bridge base surface. An outer side of the bridge base surface is fixedly connected with a fixing device; a bottom end of the fixing device is fixedly connected with a detection alarm device; a positioning plateis attached to a left side surface of a right bridge base surface; a communicating plate is simultaneously connected with two induction blocks in the same group; a distance between two bridge base surfaces can be monitored in real time; device bridge expansion joint monitoring and alarming are realized; and the bridge expansion joint is prevented from being too large to cause accidental dangers,the bridge expansion joint is prevented from being too small to enter a dangerous state, if the bridge expansion joint is too small, cooling operation or maintenance needs to be performed, the two bridge base surfaces are prevented from being abraded, the stability between the two bridge base surfaces is prevented from being affected, and using safety of the device is improved.

The present invention discloses an anti-knock support having a high stability performance. The support comprises an installation pedestal; the upper surface of the installation pedestal is fixedly connected with support columns, and each support column is internally provided with one shock absorption hole, one lifting groove, one oil passing-through hole and one limiting hole; the side wall of theinner top of each shock absorption hole communicates with the inner side wall of each lifting groove, and the inner wall of the other side of each lifting groove is extended to the outer surface of each support column; and the inner bottom wall of each lifting groove communicates with the top portion of each limiting hole. The anti-shock support having a high stability performance achieves an effect that support cross bars are subjected to limiting buffer, when the support cross bars continuously extrude damping springs, the bottom portions of damping bars extrude hydraulic oil, the hydraulicoil is extruded to jack up limiting push rods and allow the limiting push rods to perform jacking limiting of the support cross bars, and therefore, dual-damping buffer does not influence shock absorption of the damping bars, prevents the damping springs from being extruded and damaged caused by excess of stroke, and effectively solves the problem that a common photovoltaic support is poor in stability.

The invention provides a clearing device based on centrifugal cleaning and drying of a circular plastic chopping board, and relates to the field of chopping board cleaning devices. The problem that the plastic chopping board is not easy to clean is solved. According to the clearing device based on centrifugal cleaning and drying of the circular plastic chopping board, a box cover is arranged abovea bottom concave type washing box, a vertical rod is welded at the bottom of the box cover, and the bottom of the vertical rod is inserted into the side wall of the bottom concave type washing box; afixing sleeve ring is adhered to the interior of the bottom concave type washing box, and a fixed sleeve ring sleeves the outside of a rotary opposite clamping mechanism; the clearing device based oncentrifugal cleaning and drying of the circular plastic chopping board can be used for fixing round chopping boards with various sizes, force applied to a arc-shaped pressing sleeve to move towards the direction of the chopping board is generated by an arranged reset spring and an extrusion spring, so that the fixing is more stable, a motor controls the chopping board to rotate and is subjected to friction cleaning at the two faces at the same time; and an inclined fan plate rotates along with the fixed outer ring to drive water to rotate and shift, and is used for continuously scouring the chopping board fixed in the middle of the rotary opposite clamping mechanism, and the removal of stains on the surface of the chopping board is accelerated.

The invention provides a breaker discharging opening gap adjusting mechanism and a jaw type breaker. The adjusting mechanism is arranged between a movable jaw assembly and a rack and / or between a fixed jaw assembly and the rack and comprises a wedge mechanism and an adjusting device; the included angle between the normal of the wedge face of the wedge mechanism and the adjusting direction is smaller than the self-locking angle of the wedge face; the adjusting device drives a component wherein the wedge face in the wedge mechanism is located to move in the direction, wherein the included angle between the adjusting direction and the direction is larger than that of the normal of the wedge face, and the included angle between the direction and the normal is larger than the self-locking angle; the wedge face drives a component adjacent to the component where the wedge face is located to generate motion parallel to the component in the adjusting direction; the adjusting device is at least partly located in the wedge mechanism; the adjusting device is at least partly located in the wedge mechanism, the adjusting device in the gap adjusting mechanism does not occupy space in the adjusting direction of the gap adjusting mechanism, for example, the adjusting device does not need to occupy the spaces in the two ends of the wedge mechanism, and structural compactness of the whole adjusting mechanism is ensured.

The invention discloses a textile fabric cutting device, including a base, wherein an operation table is fixedly connected to the top of the base, a control console is fixedly connected to the right side of the front face of the operation table, a protection frame is fixedly connected to the top of the operation table, moving grooves are formed in the outer walls of the two sides of the protection frame, driving frames are arranged in the middles of the outer walls of the two sides of the operation table, the middles of the driving frames penetrate through the protection frame, and a cutting device is arranged at the positions, located on the left side of the operation table, of the tops of the driving frames. The invention relates to the technical field of textile equipment. According to the textile fabric cutting device, the cutting device, a cutting mechanism, the operation table and a fixing block are arranged, the cutting mechanism moves at the bottom of the cutting device, a certain sliding space appears, the fixing block scrapes residues on the surface of the cutting mechanism, a cutter is prevented from being easily damaged when the cutting thickness is large, the situation that wrinkles are generated in a cutting process, and cloth is easy to damage is avoided, and cutting deviation is not easy to cause.