503results about How to "Compact and reasonable structure design" patented technology

The invention discloses an automatic assembly production line of buzzers, which comprises a feeding mechanism, a glue coating mechanism, a buzzer piece placing mechanism, a straight contact pin placing mechanism, a first thermoplastic pipe placing mechanism, an inclined contact pin placing mechanism, a second thermoplastic pipe placing mechanism, a thermoplastic pipe heat sealing mechanism, a contact pin welding mechanism, a dispensing mechanism, a curing mechanism and a detecting and sorting mechanism, which are sequentially arranged on a work table; the glue coating mechanism comprises an automatic shell locating mechanism located behind a glue applicator, and the automatic shell locating mechanism comprises a motor, a rotating jig, an optical fiber sensor, a motor base, a supporting plate and a sensor bracket; the optical fiber sensor is a reflective optical fiber sensor and is arranged to be aligned to the shell; and the optical fiber sensor is installed on the upper part of the sensor bracket, and the lower part of the optical fiber sensor is fixed to the side plate of the supporting plate. The automatic assembly production line disclosed by the invention has the advantages of smart design and simple structure, realizes high level automation, replaces the manual operation, reduces the cost of manpower and physical resources and improves the production efficiency of the assembly line.

The invention belongs to the technical field of tunnel construction equipment, and relates to a shield tunneling machine for a tunnel connecting passageway and a connecting passageway tunneling method of the shield tunneling machine. The shield tunneling machine comprises a start end supporting walking platform and a receiving end supporting walking platform which are respectively arranged on material transportation rails in two main tunnels, a shield tunneling machine main unit, a counterforce supporting frame and a main tunnel supporting assembly which are respectively arranged on the start end supporting walking platform and a corresponding main tunnel duct piece, and a start end socket sealing assembly and a receiving end socket sealing assembly which are respectively arranged at the start end and the receiving end of the connecting passageway, wherein a duct piece hanging assembly is arranged on the start end supporting walking platform; a jacking tunneling assembly is arranged between the counterforce supporting frame and the shield tunneling machine main unit. The shield tunneling machine can realize automatically mechanical excavation; the labor intensity is greatly reduced, the energy consumption is reduced, and the cost is reduced; meanwhile, equipment construction is stable, and the efficiency is high; settling of the ground is effectively controlled, and the construction risk is reduced.

The invention relates to a comprehensive mechanization stone drift heading machine set, which comprises a shovel plate part, a caterpillar band travelling part, a rack, a belt conveying part, a flexible cutting part, a hydraulic drilling rig device, an advance support device, a hydraulic control system and an electric control system. The comprehensive mechanization stone drift heading machine set is characterized by also comprising a rotation part, two side supporting devices and top and bottom plate supporting devices. The comprehensive mechanization stone drift heading machine set disclosed by the invention is improved and perfected to enable the structure design to be more reasonable and compact, and the performances, such as working efficiency, stability, reliability, and safety of the set, are improved. Comprehensive mechanization construction equipment is provided for mine underground stone drift heading, and is especially adaptive to the underground stone drift mechanization operation and construction of various big, medium and small mines.

The invention discloses a cutting device for mechanical automatic production of spare and accessory parts, which includes a feeding mechanism, a cutting mechanism and an unloading mechanism, wherein the feeding mechanism includes a feeding table and a pushing mechanism and the cutting mechanism includes a cutting table and a cutting head group. Gate components are arranged on both sides of the cutting table, a supporting plate is arranged under the cutting table, and lifter columns are evenly arranged between the supporting plate and the cutting table. The cutting table comprises a supportingbracket and a lifting table. A longitudinal chute and a transverse chute are arranged on the top face of lifting table. The longitudinal chute includes a left longitudinal chute and a right longitudinal chute, wherein a left spacing splint is arranged in the longitudinal chute and a right spacing splint is arranged in the right longitudinal chute, and the transverse chute is communicated with theleft longitudinal chute. The overall structure of the cutting device for mechanical automatic production of spare and accessory parts is ingenious and reasonable. The automatic operation is achieved by the design of the feeding mechanism and the unloading mechanism which can feed and unload workpieces automatically, thereby reducing the labor intensity and hidden safety hazard, improving the operation safety performance and the cutting speed.

The invention discloses a composite fracturing and uniform permeability-improving method for tree-like boreholes in coal seams of an underground coal mine. The composite fracturing and uniform permeability-improving method is suitable for permeability improvement of soft low-permeability coal seams, and is characterized in that a gas exhausting and mining hole serve as a mother hole, uniformly distributed self-advancing boreholes serve as tree-like son boreholes, and a tree-like borehole net is subjected to hole-sealing fracturing. Compared with a conventional hydraulic fracturing method, the composite fracturing and uniform permeability-improving method can realize uniform fracturing of the low-permeability coal seams to enlarge the fracturing range of single crossing boreholes, so that uniform permeability improvement is achieved, and the shortcomings that the crossing boreholes subjected to conventional hydraulic fracturing are low in utilization ratio, and a single major fracture can damage top and bottom beds are overcome. The composite fracturing and uniform permeability-improving method is simple to operate, large in permeability improvement range and good in permeability improvement effect and provides a guarantee for safety production of the underground coal mine.

The invention relates to a low-floor gate-type wheel-side motor rear axle for an electric bus. The low-floor gate-type wheel-side motor rear axle comprises an axle shell, a motor, a first-stage speed reducer, a second-stage speed reducer, a brake and a wheel hub, wherein the front end of a shell of the first-stage speed reducer is connected with the axle shell; a stator of the motor is fixed in the front end of the shell of the first-stage speed reducer; a rotor is connected with the output shaft of the motor to drive the output shaft of the motor to rotate; the output shaft of the motor is parallel to the axial direction of the wheel hub; the first-stage speed reduction is transmission of a cylindrical bevel gear pair, and second-stage speed reduction is transmission of a cylindrical gear planet system; the brake is arranged outside the shell of the first-stage speed reducer and used for braking the wheel hub; and the motor, the first-stage speed reducer, the second-stage speed reducer, the brake and the wheel hub are symmetrically arranged on the left side and the right side of the axle shell. A wheel-side driving axle motor of the electric bus is integrated in the axle shell; a power transmission direction is parallel to the axial direction of the wheel hub, namely a wheel; and the low-floor gate-type wheel-side motor rear axle has a rational and compact structural design and high transmission efficiency.

The invention relates to a material tray feeding device and feeding method. The problems of unreasonable design and the like in the prior art are solved. The material tray feeding device comprises a base plate, side support plates are symmetrically arranged on the two sides of the base plate respectively, a material tray separation mechanism capable of making the stacked material trays separated one by one from bottom to top is arranged at the opposite ends of the side support plates, a material tray conveying mechanism which can convey the one by one separated material trays to the other ends of the side support plates is arranged on the opposite inner walls of the side support plates, a cantilever type stacking mechanism which can rise and fall vertically so as to carry the material trays conveyed by the material tray conveying mechanism one by one and stack the material trays is arranged at the rear of the material tray conveying mechanism, and the base plate is further provided with a material tray output mechanism which can output the stacked material trays when the material trays on the cantilever type stacking mechanism are stacked to the set height. The material tray feeding device and feeding method has the advantage of improving the production efficiency.

The invention relates to a method for producing single-tube liquid-solid double-chamber non-PVC film large soft infusion bag, which includes sending membrane, printing character, drawing membrane, forming bag, joint welding, bag separating and transmitting, joint warm-up and feeding, automatic sending joint, joint automatic arranging, feeding bag, filling bag, keeping off bag, welding cover, exhausting and heating up, picking bag, bag outputting. There is a weakly-weld seam welding assembly placed between the character printing unit and the membrane-drawing unit or between the membrane sending unit and the character printing unit; there is a assembly of filling gas into solid-chamber and enclosuring fitted at the back of the first group of joint welding unit. The infusion bag has two chambers that can store two kinds of medicine (liquid or solid), when using just squeeze the weakly-welded seam the two medicines can be fully mixed. Advantages: reasonable structure, high production efficiency and convenient operation and maintainance.

The invention discloses a micromechanical gyroscope based on a tunnel magnetoresistive effect. The main structure of the micromechanical gyroscope comprises a base plate, a liner frame body, a permanent magnet and a micromechanical gyroscope angle speed sensitive body, wherein the liner frame body is arranged above the base plate and is connected with the base body; the permanent magnet is arranged at the central position of a rectangular groove formed by the base plate and the liner frame body; the micromechanical gyroscope angle speed sensitive body is arranged above the liner frame body and is connected with the liner frame body; the micromechanical gyroscope angle speed sensitive body comprises a sensitive measuring body which is correspondingly formed in the upper side of the rectangular groove, and the upper surface of the sensitive measuring body is provided with a tunnel magnetic sensitive resistor; and the magnetic sensitive resistor corresponds to the position of the permanent magnet. The tunnel magnetic sensitive resistor can be vibrated along the sensitive measuring body in the direction vertical to the direction of the upper surface of the permanent magnet. The micromechanical gyroscope disclosed by the invention adopts a whole structure design, has a reasonable and compact structure, has a simple detection circuit, is convenient to use, has good reliability and is suitable for microminiaturization.

The invention discloses a multimedia teaching device. The multimedia teaching device comprises a multimedia lectern, wherein a central control box and a mainframe are arranged in the multimedia lectern, the central control box is connected with a multimedia display panel through a multimedia display panel control line, the central control box is connected with a projector through a projector control line, and the mainframe is connected with loudspeakers through loudspeaker connecting lines. The multimedia teaching device is reasonable and compact in structural design, a large amount of space is saved for the teaching environment, a teacher can conveniently interact and communicate with students, the teaching efficiency of the teacher is improved, and the study interest of the students is improved. In addition, a dust cover is arranged, and therefore dust can be effectively prevented from contaminating teaching equipment, normal running of the device is ensured, the service life of the device is prolonged, maintenance expenses of the device are reduced, and substance guarantees are provided for the smooth progress of school teaching.

The invention relates to a screwdriver comprising a handle, a gear device and a screwdriver head. The screwdriver is characterized in that the gear device at least comprises a device shell, a main driving gear, a front circular gear, a rear circular gear, a secondary driving gear group, a spring mounting pin, a front gear block, a rear gear block and a steering button, wherein the front circular gear and the rear circular gear are arranged corresponding to a homocentric shaft, lateral ring gears are distributed on the opposite circular surfaces, the inner rings of the front circular gear and the rear circular gear are inner gear rings; a gearwheel of the secondary driving gear group is engaged with the main driving gear, coaxial pinions in the secondary driving gear group are respectively engaged and connected with the front circular gear and the rear circular gear; the spring mounting pin penetrates into the rear end of the screwdriver head, the front and the back of the spring mounting pin are respectively provided with openings so that the spring and the steel beads can be sequentially filled in the openings; the front gear block and the rear gear block are respectively mounted in containing opening at the front and the back of the rear segment of the screwdriver head, the inner surfaces of the front gear block and the rear gear block abut on and match with respectively steel beads, the outer surfaces of the front gear block and the rear gear block keep contact with the inner gear rings of the front circular gear and the rear circular gear, and the steering button is mounted on the screwdriver head. The invention has more reasonable and practical structure and improves the efficiency.

The invention belongs to the technical field of the cleaning of tableware, and relates to an automatic cleaning machine for tableware. The automatic cleaning machine is formed by connecting a soak cleaning and double-conveyer belt feeding device, a feeding and spray cleaning device, conveying devices and a sorting storage device sequentially, wherein a spray cleaning fluid distribution device is arranged on the feeding and spray cleaning device; and each device is driven by a motor which is controlled by a controller. The automatic cleaning machine has the advantages that bowls, dishes, chopsticks, soup spoons, wine glasses and the like can be cleaned and stored quickly and cleanly by using a set of equipment; and the automatic cleaning machine is multi-functional and complete in cleaning, has a good effect, and is suitable for cleaning the tableware in medium and large-sized hotels, restaurants, dining rooms, and mess halls and at home, and time and labor are saved.

The invention discloses a fixed-length cutting device for a stainless steel tube. The fixed-length cutting device for a stainless steel tube comprises a cutting platform and a cutting head group, andfurther comprises a length determining assembly and a clamping assembly; the left side end of the cutting platform is provided with an opening groove, a cutting panel is arranged in the opening groove, and a material collecting box is arranged under the cutting panel; and the length determining assembly comprises a fixed side plate, positioning screws and a positioning pressing plate, the fixed side plate is located over the left end of the opening groove and fixedly connected with the top face of the cutting platform, the positioning screws are symmetrically arranged on the front side and theback side of the fixed side plate, and the two ends of the positioning pressing plates are arranged on the two positioning screws in a sleeving mode separately. According to the fixed-length cuttingdevice for the stainless steel tube, the structure is simple, the practicability is high, operation is easy, use is convenient, not only can the cutting rate and the cutting precision of the stainlesssteel tube be improved, but also the cutting length standard can be guaranteed every time only through one time of cutting length measurement, the manual labor intensity is effectively reduced, the error rate brought by each time of manual measurement is decreased, and resources and the cost are saved.

The invention discloses a landscaping tree fixing and righting device and a use method thereof. The landscaping tree fixing and righting device is composed of landscaping trees, a fixing and righting device and a central control system, wherein the fixing and righting device sleeves an outer diameter of each landscaping tree, is placed on a horizontal ground, and is free to adjust a lifting height; the central control system is located on one side of the fixing and righting device; the fixing and righting device is applicable to tree diameters of different landscaping trees. The landscaping tree fixing and righting device provided by the invention is firm and reasonable in structure, convenient and rapid to use, high in righting rate and applicable to different landscaping trees.

The invention relates to a high-speed train gearbox no-load running-in test bench, which is composed of a driving device, axle end transition bearing positioning clamping devices, a large-span mobile wheel set axle positioning supporting device, a gearbox input end pressing vertical column device and a noise testing device, wherein the driving device is arranged at the left end of a test bench base (1); a fixing-end and a mobile-end transition bearing positioning clamping devices are arranged at the left side and the right side of the test bench base (1) respectively; the large-span mobile wheel set axle positioning supporting device is composed of two sets of large-span mobile wheel set axle positioning supporting devices with the same structure; the gearbox input end pressing vertical column device is arranged on the test bench base (1); and the noise testing device comprises noise testing sound level meters and supporting tube assemblies arranged at the input end and the output end of the gearbox respectively. A series of technical problems that the existing gearbox no-load running-in test bench is complicated to assemble and disassemble, an axle journal is damaged, a high rotation speed can not be met and the like can be solved.

The invention discloses a shaping machine for after-finishing of fabrics. The shaping machine comprises a box body, wherein a bracket is arranged on the left side of the box body; a cooling assembly and a static electricity removing assembly are sequentially arranged on the bracket from left to right; a conveying roller platform penetrates through the box body; the interior of the box body is divided into a preheating cavity and a drying cavity by a partition plate; a through groove is formed in the partition plate; a steam spraying disc and a flapping assembly are arranged in the preheating cavity, and a drying assembly is arranged in the drying cavity. The provided shaping machine for after-finishing of fabrics is ingenious and reasonable in structural design; fabrics are subjected to steam humidification and heating treatment through the steam spraying disc in the preheating cavity; the surfaces of the fabrics are humidified more uniformly through the cooperation of the flapping assembly; the fabrics are better loosened and softened and then enter the drying cavity to be dried by the drying assembly at the optimal temperature; after the fabrics are cooled through the cooling assembly, the fabrics are subjected to static electricity removal treatment through the static electricity removing assembly, so that winding and treatment of the fabrics are more convenient.

The invention provides an integrated pulse eddy current sensing infrared thermal imaging detection apparatus and a detection method thereof. The integrated pulse eddy current sensing infrared thermal imaging detection apparatus comprises an electromagnetic induction actuator for generating an alternating magnetic field, an infrared thermal imager and an embedded industrial control plate, wherein one end of the actuator coil of the electromagnetic induction actuator is connected to the embedded industrial control plate, the other end is aligned with the crack defect on a specimen, the infrared thermal imager is connected to the embedded industrial control plate, and the infrared thermal imager collects the infrared image of the specimen and transmits the image to the embedded industrial control plate. According to the present invention, the pulse eddy current sensor is used as the excitation source, and the excitation of the infrared thermal imaging detection and the collection device are integrated, such that the structure design is compact and reasonable, the single-hand operation can be achieved, and the field practicability is strong; the synchronization of the infrared image acquisition and the actuator excitation is achieved by the industrial control tablet PC, such that the operation of the apparatus is simple and convenient; and the infrared detection method provided by the embodiments can achieve the simple and rapid detection of various defects.

The invention relates to a power machinery closed loop face-to-face double gear case inclination type excitation test stand. The power machinery closed loop face-to-face double gear case inclination type excitation test stand comprises a transverse gear case excitation device, a power machinery closed loop face-to-face double gear case inclination type test stand, a portal frame vertical excitation device, a vibration isolation T-shaped groove cast iron base platform, a vibration isolation concrete base and a vibration isolation spring group system arranged at a lower end of the vibration isolation concrete base. Through cycle use of the power in a closed loop system, energy consumption is reduced, tests can be maintained through utilizing a motor with small power to compensate a part of the power, so the energy saving purpose is realized; the test stand is an inclination type test stand, so the gear cases are enabled to generate certain inclination angles transversely and vertically, lubrication oil distribution and the lubrication situation of the gear cases can be simulated and detected when a high speed train is under conditions of curvilinear motion, braking and acceleration, through the test stand, safety operation of a high speed train group is improved, travelling comfortableness of a high speed motor train unit is improved, and development of the motor train unit technology is greatly facilitated.

The invention discloses a novel gyroscope based on nanometer optical grating detection. The novel gyroscope comprises a bonding base plate, a gasket frame, a support frame, a driving cantilever beam, a movable frame, a detecting cantilever beam, mass blocks, a laser light source, a photoelectric conversion device and a signal detecting module. The micromachining gyroscope is symmetrical in the whole structure, two mass blocks are opposite in the driving directions, differential coupling output is realized, the structure is reasonable and compact, the nanometer optical grating is adopted, the anti-electromagnetic interference capacity is strong, and the gyroscope has the advantages of high sensitivity and good reliability.

The invention relates to a motive power machine closed loop inclinable polygonal excitation gear box testbed. The testbed comprises a vibration isolation T-shaped cast iron foundation platform, a gear box testbed body fixed to the vibration isolation T-shaped cast iron foundation platform and a refrigeration circulation system connected with the gear box testbed body, a cylindrical tooth gear is adopted to simulate the contact surface of a wheel track, vertical excitation and axial excitation are utilized, and the vibration situation of a gear box of a high speed train in the actual running process is simulated actually; mechanical torques different in intensity are generated inside a closed loop system through engagement position changes of a large inclined gear and a small inclined gear, so that energy consumption is reduced. An inclinable mounting base beam can generate certain inclination in the axial direction and the radial direction, and whether the gear box can guarantee normal circular flow and leakproofness of lubricating oil in the box or not in the operation process of the train is detected. By means of the testbed, comprehensive reliability tests can be conducted on the gear box of the high speed train, a good promotion effect is achieved for improving safety running of the train and improving sitting comfort of a high speed motor train unit, and good social and economic benefits are achieved.

The invention relates to a natural gas hydrate heat transfer performance testing apparatus used in X-ray CT equipment. The invention belongs to the technical field of petroleum scientific research apparatus. The apparatus can be used for simulating in-situ formation of rock core natural gas hydrate, and can be arranged on a rotary object stage of X-ray CT equipment for testing the heat transfer performance. A designed pressure is 0-20MPa, and a designed temperature is -20 to 30 DEG C. For reducing the inferences on X-ray CT equipment imaging, a titanium alloy material is adopted in the integral apparatus. Also, the apparatus is designed as a double-layer sleeved cylinder structure. With an inner cylinder, pressure for natural gas hydrate in-situ formation is ensured. With a circulated cooling agent in the interlayer, the temperature of the inner cylinder is controlled. Multi-point measuring thermal resisters are annularly arranged in the inner cylinder. Signal intensity of collected X-ray CT images and data information acquired by the thermal resisters are analyzed, such that related conclusion of the natural gas hydrate heat transfer performance is obtained. The structure of apparatus is reasonably designed, such that equipment parameter requirements of the apparatus are satisfied. The function is comprehensive, and the operation is simple.

The invention discloses a yarn guiding device for textile machinery yarn. The yarn guiding device comprises a fixed frame and a yarn guiding frame; the yarn guiding frame comprises an arc-shaped rotating plate and an arc-shaped fixed plate; an upper pressure roller is arranged at the right end of the arc-shaped rotating plate, and the left end of the arc-shaped rotating plate is connected with anadjusting air cylinder; a lower pressure roller is arranged at the right end of the arc-shaped fixed plate, and a yarn arranging wheel is arranged on the arc-shaped fixed plate; and a first yarn guiding roller is arranged between the yarn arranging wheel and a yarn leading roller, and a second yarn guiding roller is arranged between the yarn arranging wheel and the lower pressure roller. The yarntransferred from different angles can be led, the yarn is prevented from being broken in the transferring process, burrs and impurities on the surface of the yarn can be removed in the yarn leading process through the design of the yarn arranging wheel, thus the surface of the yarn is smoother and flatter, and the quality of the yarn is improved; and meanwhile, electrostatic friction generated inthe yarn transferring process can be removed through a electrostatic eliminating assembly, and the problems of yarn fault increasing, yarn breaking and flying are reduced.

The invention relates to a flexible supporting and positioning system for docking of large airplane components. The flexible supporting and positioning system comprises a nose supporting device, a flexible middle fuselage supporting device, a central wing supporting device and a flexible rear fuselage positioning and supporting device. Thus, the nose, the middle fuselage, the rear fuselage and central wings can be accurately and quickly docked, the flexible supporting and positioning system is reasonable, compact and safe in structural design, and innovative ideas and diversification of modern enterprise development are met. In addition, bearing data can be accurately measured by a weight sensor and are displayed via a display screen, so that operators can conveniently examine and operate an X-axis hand wheel and lead screw slide table and a Y-axis hand wheel and lead screw slide table to adjust load of flexible supports, flexible support positioners can coordinate safely and reliably in the X-axis and Y-axis directions, and moving accuracy of the large airplane parts and safety of the operators are guaranteed. Meanwhile, the flexible supports of the flexible middle fuselage support device can move towards the left and the right along transverse guide rails, and delivery of airplanes after final assembly is facilitated.

The invention discloses vehicle-mounted diagnosis and treatment equipment for endangered plant Cercidiphyllum japonicum and a working method of the vehicle-mounted diagnosis and treatment equipment. The vehicle-mounted diagnosis and treatment equipment comprises a traction vehicle, a diagnosis and treatment device, detected Cercidiphyllum japonicum and a central control center, the traction vehicle is driven to a specific location, and the diagnosis and treatment device is started by the central control center, holds a trunk part of the detected Cercidiphyllum japonicum and sprays a chemical agent to the detected Cercidiphyllum japonicum. The vehicle-mounted diagnosis and treatment equipment for the endangered plant Cercidiphyllum japonicum and the working method of the vehicle-mounted diagnosis and treatment equipment have the advantages that the structure is novel and reasonable, the operation is convenient and fast, the automation degree is high, the diagnosis and treatment efficiency is high, and the application range is wide.

The present invention discloses a silicon base tunneling magnetoresistance micro gyroscope, which comprises: a bonding substrate; a liner frame, wherein the liner frame is arranged above the bonding substrate and connected with the bonding substrate; a ferromagnetism film, wherein the ferromagnetism film is arranged on a center position of a rectangular groove formed by combination of the bonding substrate and the liner frame; and a micro gyroscope, wherein the micro gyroscope is arranged above the liner frame, is connected with the liner frame, and comprises a sensitive mass block correspondingly arranged above the rectangular groove, the upper surface of the sensitive mass block is provided with a giant magnetic resistance, the position of the giant magnetic resistance and the position of the ferromagnetism film are corresponding, and the giant magnetic resistance layer can vibrate along with the sensitive mass block along a direction perpendicular to the upper surface of the ferromagnetism film. According to the micromachined gyroscope of the present invention, the whole structure design is adopted, the structure is reasonable and compact, circuit detection is simple, the use is convenient, reliability is good, and the gyroscope is applicable for miniaturization.

The invention provides a device and a method for CT (Computed Tomography) scanning of a low-temperature sample and belongs to the technical field of non-destructive testing. The device is used for cooling a sample to be scanned in a closed X-ray shielding room to realize low-temperature fidelity of the sample. In order to reduce absorptive attenuation of X rays, liquid nitrogen which is easy to gasify at a room temperature and a room pressure is used as a refrigerating agent; a gasification spraying head is used for spraying the sample from top to bottom; the low temperature and a lot of gasification latent heat of the liquid nitrogen are utilized to realize refrigeration. The liquid nitrogen spraying power is gas pressure of a high-pressure nitrogen bottle and the refrigeration amount is controlled by liquid nitrogen spraying pressure and flow. In order to prevent the situation that the inner parts of an X-ray emission device and a CT room are dewed due to a great temperature difference, a semi-closed separation box is designed above a CT objective table and the liquid nitrogen is used for carrying out temperature control on the sample in the separation box; meanwhile, the gasified liquid nitrogen is discharged out of the CT room by a pipeline below the separation box. A vacuum heat-insulating pipe is adopted as a liquid nitrogen conveying pipeline so that the liquid nitrogen is not gasified in a conveying process and is prevented from being dewed.

The invention discloses composite fracturing and uniform permeability increasing equipment for treelike drilling in a coal seam of an underground coal mine. The whole equipment can be divided into a hole forming system and a fracturing system. The hole forming system comprises a drilling machine, a drill stem, a drill bit, a support, a water tank, a high-pressure pump, a winch, a propelling mechanism, a chuck, a high-pressure hose, a self-propelled drill bit and the like. The fracturing system comprises the water tank, the high-pressure pump, a pressure meter, a high-pressure rubber pipe, a hole sealing device and the like. The composite fracturing and uniform permeability increasing equipment is suitable for carrying out volume fracturing on the coal seam of the underground coal mine, can reach the effects of carrying out uniform permeability increasing on the coal seam and increasing the gas extraction rate, and is easy to operate and good in economic performance.

The invention provides a motor and pneumatic muscle hybrid wearable upper limb rehabilitation robot. The motor and pneumatic muscle hybrid wearable upper limb rehabilitation robot comprises a drivingpart and an executing part; the driving part includes a shoulder rotating motor, elbow flexion and extension pneumatic muscle, wrist flexion and extension pneumatic muscle; the executing part includesa seat, a shoulder part and upper limb mechanical arms; the seat includes an upper seat back, a lower seat back, a seat back height adjustment mechanism, handholding handles, a seat cushion, a seat cushion height adjustment mechanism and a bottom moving support; the shoulder part includes a shoulder part motor fixing mechanism and a motor rotating mechanism; the shoulder part motor fixing mechanism is fixedly connected with the upper end of the seat back of the seat in an adjustable mode, and a rotating mechanism is fixedly connected with the mechanical arms; and the upper limb mechanical arms include upper arms, small arms and hand part fixing mechanisms, and the upper arms include upper arm fixing mechanisms. According to the motor and pneumatic muscle hybrid wearable upper limb rehabilitation robot, the horizontal rotation of a left arm or a right arm around a shoulder joint can be realized, the three-free-degree movement of the flexion and extension of a elbow part and the flexionand extension of a wrist part can be achieved, safety is high, bionic performance is high, weight is light, the cost is low, and the application range is wide.

The invention discloses a cutting device for a glass table board of an integrated cooker. The cutting device comprises a workbench, a cutting mechanism and clamping devices, a movable seat is arrangedbelow the workbench, a mounting plate is arranged between the workbench and the movable seat, a rotating motor, a driven wheel and a rotating screw rod are arranged on the mounting plate, the rotating motor drives the driven wheel to rotate through a belt wheel, the driven wheel drives the rotating screw rod to rotate, the cutting mechanism is located above the workbench, and the clamping devicescomprise supporting rods and clamping pressing plates. A cutting method comprises the following steps that (1) a to-be-cut raw material is fed; (2) positioning and clamping are carried out on the glass plate raw material; (3) the position of the cutting mechanism is adjusted; and (4) cutting machining is carried out. According to the cutting device, the overall structural design is ingenious andreasonable, omni-directional adjustment of the position of the cutting mechanism can be realized, and accurate positioning between the cutting mechanism and the to-be-cut position is ensured; and meanwhile, the clamping devices are designed so that the to-be-cut raw material can be clamped and fixed, and the application range is wide.

The invention discloses a linear rotation mechanism of an automatic buzzer assembly line. The linear rotation mechanism comprises a cylinder shifting module, a rack rotating module, a belt conveyor, a cylinder positioning module, a first electromagnetic carrying module and a second electromagnetic carrying module which are fixed on a worktable; the rack rotating module is connected with the cylinder shifting module; the cylinder shifting module and the belt conveyor are mounted in parallel; the cylinder positioning module is mounted nearby the front end of the cylinder shifting module; and the first electromagnetic carrying module is arranged nearby the front end and the second electromagnetic carrying module is arranged nearby the rear end of the cylinder shifting module. By matching of the cylinder shifting module and the rack rotating module, linear rotation of tool jigs is realized; and by matching of the belt conveyor, the first electromagnetic carrying module and the second electromagnetic carrying module, recycling of empty tool jigs is realized.