73results about How to "Guaranteed working strength" patented technology

The present invention discloses composite grate plate for automatic mill. The composite grate plate includes grate plate with conic discharge holes for sieving ground material, and netted support covered with elastic antiwear layer. The present invention has no waste of worn expensive material, no iron dust caused by wearing steel material, and high quality of ground quartzite.

The invention discloses a trackless self-propelled platform truck for maintaining a subway tunnel. The trackless self-propelled platform truck comprises a mechanical system, a control system, a hydraulic system and a power system, wherein the mechanical system comprises a running gear, a main bearing platform, a fixed operating platform, a lifting operating platform, a telescopic operating platform, a support device, a vehicle-mounted equipment platform and a self-aligning mechanism, wherein the two ends of the main bearing platform and the fixed operating platform are in sliding fit with thetelescopic operating platform; the support device is connected with the telescopic operating platform; the vehicle-mounted equipment platform is used for placing vehicle-mounted equipment; the self-aligning mechanism is arranged below the vehicle-mounted equipment platform; the control system comprises a PLC; the PLC is mounted on the main bearing platform; the hydraulic system comprises a hydraulic actuating element; the hydraulic actuating element is mounted on the self-aligning mechanism; the input end of the hydraulic actuating element is connected with the PLC; and the power system is electrically connected with the hydraulic system and the control system. The trackless self-propelled platform truck can safely move and carry out maintaining operation in different subway tunnel diameters.

The invention discloses a medical auxiliary instrument. The medical auxiliary instrument comprises a mounting cross beam, supporting rods and L-shaped hooks, wherein one group of supporting rods are symmetrically arranged, an electric telescopic rod is arranged at the bottom of each supporting rod, a vacuum chuck is arranged at the bottom of each electric telescopic rod, the mounting cross beam isarranged above the supporting rods, a pneumatic cylinder is arranged at a middle position of the bottom of the mounting cross beam, an arm placing position is arranged at the output end of the pneumatic cylinder, a threaded hole is formed in each electric telescopic rod, a screw is arranged on each threaded hole, the L-shaped hook is arranged on each screw, an aerator is arranged on each screw, alocating bolt is arranged at the top of one end, close to the L-shaped hook, on each screw, each locating bolt runs through the corresponding screw and extends to the underneath of the screw, a mounting block is arranged on each locating bolt, and an air sac is arranged at the bottom of each mounting block. The medical auxiliary instrument disclosed by the invention has good fixation effect in surgery, and working strength of medical personnel is greatly alleviated.

The invention provides a drilling-tapping all-in-one machine which solves the problem that an existing motor ring processing process is complex. According to the technical scheme, the key point is that the drilling-tapping all-in-one machine comprises a rack and an oil supply system, wherein an indexing positioning device which is rotatably connected with the rack is arranged on the rack; a turnover device for turning over workpieces is arranged on the rack; processing devices are arranged on the positions, at the two sides of the turnover device, of the rack; and each processing device comprises a drilling device and a tapping device. The indexing positioning device, the processing devices and the turnover device are arranged on the rack, so that the workpieces are transported to each station through the indexing positioning device, one workpieces is clamped once and processing of positive and negative surfaces is accomplished, multi-time calibration is not needed, processing time isshortened, and processing efficiency is improved; and moreover, the turnover device can automatically turn over the workpiece, equipment processing speed is increased, transportation time is saved, workpiece collision is avoided, working environment of a worker is improved, working strength is reduced, fatigue of the worker is reduced, and processing quality of the workpiece is guaranteed.

The invention discloses a special socket wrench for an automobile tire anti-theft bolt assembly. The socket wrench comprises a wrench body and a handle, wherein the handle is movably connected with the wrench body; the wrench body comprises a main working body and a main connecting body; a double-layer clamping body is arranged on the main working body and comprises an inner circular arc clamping body and a groove clamping body; the groove clamping body is provided with at least one groove penetrating through the center of the inner circular arc clamping body; a guide hole is formed in the position, extending into the main connecting body along a center line, on the main working body, and is coaxial to the inner circular arc clamping body; the handle is movably connected with one end of the main connecting body. According to the socket wrench, an anti-theft bolt or an anti-theft nut can be quickly assembled and disassembled, and the phenomenon that a tire is stolen is effectively prevented; moreover, the socket wrench is simple in structure, convenient to manufacture, low in cost and quick to operate.

The invention discloses a splicing building board for rapid modeling. The splicing building board for rapid modeling comprises a splicing board, coupling spliced structures are arranged on the two sides of the splicing board which are used for splicing, the front side of the splicing board is a smooth plane, the back side of the splicing board is provided with at least one fixed groove, and effective width of the splicing board is equal to a multiple of the splicing board thickness H. The invention further discloses a template rib, a template and a template structure used for the splicing building board for rapid modeling. By utilizing the splicing board and the template rib for modeling, timbers are unnecessary to use, the splicing board and the template rib are good in rigidity and high in strength. Additional support is unnecessary except for a large area template body, working efficiency is high, material utilization rate is high, the surfaces of buildings are smooth and level, and once more repair and maintenance is unnecessary. The splicing board and the template rib can be used recoverably, and mass production and standardization are easy to achieve.

The invention provides a vehicle braking method and device based on vehicle weight and gradient self-adaption and a medium. The method comprises the following steps: determining a first forgetting factor corresponding to vehicle weight data and a second forgetting factor corresponding to road slope data; obtaining a forgetting vector; based on the forgetting vector and a preset recursive least square method with a forgetting factor, constructing a corresponding vehicle weight and road slope estimation model; obtaining vehicle weight estimation data and road slope estimation data at the current moment according to the driving state parameters and the vehicle performance parameters of the vehicle at the current moment and the vehicle weight and road slope estimation model; and according to the vehicle weight estimation data and the road slope estimation data at the current moment, determining the brake pedal force and the brake safety distance of the vehicle at the current moment, and conducting vehicle braking based on the brake pedal force and the brake safety distance. Therefore, an emergency braking system can carry out self-adaptive control on the braking safety distance and the braking pedal force according to the vehicle center and slope conditions.

The invention provides a stand column. The stand column comprises a stand column body, wherein the stand column body comprises a connecting surface; the connecting surface perpendicularly extends to the bottom surface from the top surface of the stand column body, and divides the stand column body into a front cavity and a back cavity; hoisting holes are formed in the connecting surface; a plurality of connecting surface reinforcing ribs which are arranged on the connecting surface are arranged in the front cavity, are connected with the left side wall and the right side wall of the stand column body, and are connected to the top surface and the bottom surface of the stand column body; the connecting surface reinforcing ribs and the hoisting holes are staggered; the back cavity does not have a top surface; mounting slide tracks are integrally formed on the back of the back cavity, are symmetrically arranged on two sides of the outside of the back cavity, and downwards extend to the position above the bottom surface from the top surface of the stand column; supports are arranged on the lower portion of the stand column body, extend to two sides from the position below the bottom surface and are symmetrically distributed, so that a bottom groove is formed below the bottom surface; and mounting holes are formed in each support. The stand column is low in cost and high in strength,and is firmly and stably combined to a base of a machine tool.

The utility model relates to a chain-type steel pipe transverse section feeding device, which relates to the field of steel pipe production. It includes a machine base on which fixed beams, rotating beams, a drive shaft and multiple drive shafts arranged in parallel are arranged on the machine base, and sprockets connected by chain transmission are respectively installed on the drive shaft and the drive shafts; One end of the transmission shaft is connected to the rotating beam through a rotating arm, and a plurality of V-shaped free stingers are evenly distributed on the top of the rotating beam, and a plurality of V-shaped fixed stingers are evenly distributed on the top of the fixed beam, and two adjacent fixed stingers The stingers are correspondingly arranged on the rotation track of a free stinger. The invention has no rotation and axial deviation during the horizontal transportation, and also has the advantages of simple structure and convenient maintenance. At the same time, according to the number of free stingers and fixed stingers on site, the cost of construction is low.

The invention relates to an intelligent dynamic sealed liquid storage tank equipped with a metal ripple compensator and a use method of the intelligent dynamic sealed liquid storage tank. A liquid inlet solenoid valve is arranged at the liquid inlet of the liquid storage tank; a discharge valve is arranged at the discharge opening; a liquid outlet solenoid valve and an on-line moisture detection instrument are sequentially arranged at the liquid outlet of the liquid storage tank in the liquid outlet direction; the metal ripple compensator is mounted inside the liquid storage tank; wheels are mounted at the bottom of the metal ripple compensator; a guide rail matched with the wheels are mounted in the liquid storage tank; a breathing tube communicated with the metal ripple compensator is arranged at one end of the liquid storage tank; an electric contact liquid level meter is arranged at the other end of the liquid storage tank; the liquid inlet solenoid valve, the liquid outlet solenoid valve, the on-line moisture detection instrument and the electric contact liquid level meter are electrically connected with a control module. According to the invention, the cavity of the metal ripple compensator is communicated with the outer atmosphere through the breathing tube; the breathing action of the metal ripple compensator can perform the functions of compensating and balancing volume change in the liquid storage tank. caused by change in liquid level, so as to achieve dynamic sealing.

The invention discloses a fire-resistant data cable, which comprises a cable inner core, an oil-resistant layer, a refractory fiber layer and a water-resistant layer, wherein the cable inner core, the oil-resistant layer, the refractory fiber layer and the water-resistant layer are sequentially arranged from the inside to the outside; the cable inner core comprises a foam skeleton and conductor core groups; the foam skeleton comprises four raised lines which are symmetrically arranged; the tail end of each raised line is provided with a groove which is sunk inwards; each conductor core group is arranged in the corresponding groove; each conductor core group comprises a pair of wires which is arranged in parallel; an isolation layer coats the outer sides of each pair of wires; factice is filled between the cable inner core and the oil-resistant layer; and the factice comprises dimethicone, copolymerized silicone oil and fumed silica with the ratio in parts of 54 to 38 to 8. Through the arrangement of cable inner core, oil-resistant layer, refractory fiber layer and water-resistant layer, the fire resistance and the vibration reducing performance of the fire-resistant data are improved; and the problem that the fire resistance and the mechanical property are relatively poor since an existing fire-resistant data cable is dependent on the performance of a resin material itself is solved.

Disclosed are a die and method for manufacturing an inner and outer pipe workpiece with separation ribs in the middle through an extrusion method. The die comprises a male die body and a female die body which are vertically and coaxially arranged. The top end of the male die body is fixed to the lower portion of an upper die plate, and the female die body is fixed to the upper portion of a lower die plate. An ejector rod is arranged in a through hole in the middle of the lower die plate in a sliding manner. The convenient extrusion method is provided under the condition that the heights of an inner pipe, an outer pipe and separation ribs are different, and the die is novel and unique in design. The surface of a product is free of weld joints, and the die can adapt to places with high requirements for strength. The die is easy to machine and low in manufacturing cost. In the extrusion process, work stress is low, the tonnage of needed equipment is low, the die is not prone to being damaged, economical benefits are high, and cross sections of extrusion parts do not need to be consistent. Along with rapid development of the industry, the application range of the inner and outer pipe workpiece with the separation ribs of this kind is wider and wider, and the extrusion moulding method and the die structure have the great application prospect in industrial production.

The invention relates to the technical field of agricultural weeding machinery, in particular to an agricultural multifunctional rice field weeder, comprising an actuator arranged in the front of a driving body; the actuator is fixedly connected with the driving body in a fitly manner; two rolling wheels are arranged on each side of the driving body; the front end face of the driving body is provided with two circular fastening channels; one side of the upper end of the driving body close to the circular fastening channels is provided with a cavity; the wall of the cavity along the length of the driving body is provided with a rectangular fastening rebate; the upper end face of the driving body on one side of the cavity is provided with a controller; the controller is connected with a steering wheel; the controller is provided with motor switch A, motor switch B and a driving switch sequentially along the length of the controller; the rear end face of the driving body is provided witha solar panel; the solar panel is 30 degrees angled to the horizontal direction; the solar panel is connected with the controller through a line to supply power. Compared with traditional methods, theagricultural multifunctional rice field weeder has good structural stability and operating performance.

The invention belongs to the technical field of transformer substation operation and maintenance, and in particular relates to a low-voltage lead disassembling and assembling platform for a 1000kV extra-high voltage transformer. The working platform comprises two cross rods arranged in parallel, one or more pedals arranged between the two cross rods and used for providing standing space and a plurality of supporting legs fixed to the two cross rods and used for providing vertical supporting force. The problem that the low-voltage lead of the 1000kV extra-high voltage transformer is difficult to disassemble and assemble is solved, the personal and equipment safety is ensured, and meanwhile, the operation efficiency is improved.

The invention provides a threshing device with an adjustable two-way drawing wire threshing interval and a combined harvester. The device comprises grid strips and a tensioning mechanism, wherein a plurality of grid strips are in clearance fit with a side plate, the tensioning mechanism is installed on the multiple grid strips, and the grid strips move radially and tangentially in clearances. Thetensioning mechanism comprises tangential tensioning devices and radial tensioning devices, and one radial tensioning device is installed in the radial direction of any grid strip for enabling the grid strips to move in the radial direction in the clearances; the tangential tensioning devices are installed on the grid strips in the tangential direction in series for enabling the grid strips to move in the tangential direction in the clearances. According to the actual harvesting operation conditions, the size of the threshing clearances can be adjusted by adjusting the positions of the grid strips, the adjusting mechanism is simpler, operation is convenient and rapid, and the concave plate clearances can be easily adjusted and controlled automatically, and the problems that existing threshing clearance adjustment is difficult and the automatic degree is low are solved.

The invention discloses a micro-deformation piezoelectric energy collection device and method applied to a road surface. The device comprises a box body, an elastic rubber block arranged in the box body and a piezoelectric module arranged in the elastic rubber block. The piezoelectric module comprises a pressing plate, a cantilever beam piezoelectric module and a stacked piezoelectric module. Thepressing plate is arranged in the elastic rubber block, a rotating shaft is arranged on the pressing plate, and when the pressing plate rotates around the rotating shaft, the end, close to the cantilever beam piezoelectric module, of the pressing plate extrudes the cantilever beam piezoelectric module to generate voltage; and one end, far away from the cantilever beam piezoelectric module, of thepressing plate extrudes the stacked piezoelectric module to generate voltage. According to the invention, the cantilever beam piezoelectric module and the stacked piezoelectric module can be extrudedby the pressing plate at the same time to generate voltage, mechanical energy can be more effectively converted into electric energy, the generated electric energy can supply power to wireless sensingequipment in an intelligent traffic information acquisition system after being processed by an energy collection circuit, and the energy collection efficiency is higher.

The invention discloses a rice seedling transplanting device for scientific research of rice planting and breeding and a use method thereof, the rice seedling transplanting device comprises a bottom plate, a mounting rack, connecting rods and sleeves, the mounting rack is fixed at the upper end of the bottom plate, the connecting rods are arranged at two ends of one side wall of the mounting rack, one end of each connecting rod is connected with the corresponding sleeve, a pin hole is formed in each sleeve, and the pin hole is connected with the mounting rack. Driving wheels are arranged on the two sides of the upper end of the mounting frame. The device has the beneficial effects that by arranging the soil gathering plate and the through holes, in the transplanting process, due to the fact that the soil gathering plate is of a splayed structure and the arrangement position of the soil gathering plate is consistent with the transplanting position of the device, the soil gathering plate can gather soil at the transplanting position, the content of soil at the transplanting position is increased, and it is guaranteed that seedlings are deeply inserted into the field and prevented from toppling over; in the soil gathering process, water is discharged through the through holes, the transplanting effect and the survival rate of seedlings are guaranteed, and the practicability of the device is improved.

The invention discloses a hydraulic forming device of a damping rubber ring and a production technology of the damping rubber ring. The production technology of the damping rubber ring comprises the steps of manufacturing a steel ring, wherein material preprocessing and shearing are conducted, and a mold is rolled; preprocessing the steel ring, wherein the outer appearance of the steel ring is detected, passivation treatment is conducted on the steel ring, and sand blast is conducted on the inner ring of the steel ring; conducting spray coating on the inner ring of the steel ring, wherein a spray coating agent is prepared in the manner that absolute ethyl alcohol and Thinkbond4 are evenly mixed, the concentrate of the absolute ethyl alcohol in the prepared spray coating agent is larger than 99%, the water content is smaller than 0.1%, and spray coating treatment is conducted on the inner ring of the steel ring; and conducting combination by means of the vulcanization technology, wherein the hydraulic forming machine is utilized to conduct extrusion formation on silica gel and the steel ring. According to the damping rubber ring produced by the adoption of the production technology,on the basis of an original rubber ring, the steel ring is additionally arranged, so that the fatigue resistance of the damping rubber ring is improved, the service life is prolonged, the work efficiency is improved, and the labor intensity of work personnel is lowered; the steel ring is coated with the spray coating agent formed by evenly mixing the absolute ethyl alcohol and Thinkbond4, and therefore the efficiency of the vulcanization technology is improved; and the spray coating agent has ultrahigh adhesive force, and therefore the quality of the product is improved.

The invention discloses a high-maintainability integrated centrifugal fan set. The high-maintainability integrated centrifugal fan set comprises a flow collector, a centrifugal impeller, a mounting rack and a motor; the motor is fixed to the mounting rack, the centrifugal impeller is arranged on an output shaft of the motor, the flow collector is fixed to the mounting rack and is arranged at the front end of the centrifugal impeller, a sliding rail and a T-shaped bolt are arranged, the sliding rail is provided with a T-shaped sliding groove extending in the length direction, the mounting rackis arranged in the T-shaped sliding groove through the T-shaped bolt, the centrifugal fan set can be conveniently mounted and dismounted in a locomotive, and repairing or maintaining can be facilitated.

The invention relates to a life-saving appliance providing a life-saving space, and an application method thereof. The life-saving appliance comprises a main body arranged in an assembly, wherein the assembly can be opened manually or automatically in water, so that the main body is unfolded to release the life-saving space; and the assembly is connected and assembled through connecting clasps which are connected with an opening clasp of a pressure cylinder. The life-saving appliance and the application method thereof aim to solve the problems that the life-saving appliances in the prior art, such as a life-saving boat or a life-saving raft, cannot guarantee low cost and high safety at the same time; the life-saving appliance and the application method thereof particularly solve the problem that the life-saving appliance cannot be suitable for water rescue and self-rescue work in severe weather or even extreme weather situations; meanwhile, on the premise of safety and stability guarantee, the structure of the life-saving appliance is simplified, the portability degree and the convenience degree in application operation of the life-saving appliance are increased, the bearing capacity and the life-saving space are increased greatly, and the life-saving efficiency is improved; and the life-saving appliance can be suitable for water rescue and self-rescue in various situations.

The invention discloses a production process of an outer chain plate of a transmission chain, which comprises the following steps: (1) rolling: sending the blank of the outer chain plate into a rolling machine for rolling treatment; (2) marking: the outer chain Milling mark on slab; (3) Rolling dirt: Send the blank to the roller machine again for rolling treatment; (4) Heat treatment: Send the blank to the heating furnace for hot forging for 2~4 hours; (5) Electroplating : After the hot forging is completed, it is air-cooled to room temperature and then electroplated; (6) Rolling: After electroplating, it is parked for 10 hours and sent to the rolling machine again; (7) Inspection: After the rolling is completed, the blank is taken out to obtain the finished product Outer chain plate. The outer chain plate of the transmission chain of the present invention is processed by multi-layer rolling to remove the surface contamination and impurities of the blank, and then heat treatment is performed to ensure the working strength of the outer chain plate. At the same time, after the outer chain plate is processed, the surface is electroplated. While beautifying the appearance, the ductility of the outer link plate is improved, so that the outer link plate has a higher tensile strength.

The invention belongs to the technical field of concrete-filled steel tubes, and particularly relates to a plug-in concrete-filled steel tube column base for a large power transmission tower and a construction method of the plug-in concrete-filled steel tube column base. The structure comprises a bottom pile foundation anchoring pier, a foundation bearing platform and insertion type steel pipe concrete which are sequentially arranged from bottom to top; a grouting opening is formed by a top pipe opening of the insertion type steel pipe concrete, a pressing plate is coaxially arranged in the grouting opening, an anchor plate is further arranged above the grouting opening, and the anchor plate and the pressing plate are connected through a middle rod. The concrete-filled steel tube column foot further comprises an axial pull rod and a tensioning nut used for tensioning the axial pull rod. The insertion type steel pipe concrete column base has the advantages of being simple in structure, reliable in force transmission, small in occupied space and convenient to construct, and a basic guarantee can be provided for normal and reliable use of the column base. The invention further provides a construction method based on the plug-in concrete-filled steel tube column base, so that the efficiency, accuracy and reliability of construction are practically improved.

The invention discloses a splicing building board for rapid modeling. The splicing building board for rapid modeling comprises a splicing board, coupling spliced structures are arranged on the two sides of the splicing board which are used for splicing, the front side of the splicing board is a smooth plane, the back side of the splicing board is provided with at least one fixed groove, and effective width of the splicing board is equal to a multiple of the splicing board thickness H. The invention further discloses a template rib, a template and a template structure used for the splicing building board for rapid modeling. By utilizing the splicing board and the template rib for modeling, timbers are unnecessary to use, the splicing board and the template rib are good in rigidity and high in strength. Additional support is unnecessary except for a large area template body, working efficiency is high, material utilization rate is high, the surfaces of buildings are smooth and level, and once more repair and maintenance is unnecessary. The splicing board and the template rib can be used recoverably, and mass production and standardization are easy to achieve.

The invention discloses a vehicle square cabin suitable for electronic information technical support, and relates to the technical field of vehicle square cabins. The vehicle square cabin suitable forelectronic information technical support is used to solve the problem that when an existing electronic information technical support team handles official business on site, the preparatory work is tedious, and is limited in needed equipment, electricity utilization and operational environment. According to the vehicle square cabin suitable for electronic information technical support, a cabin door is arranged on one side of a box body, a fresh air circulating opening and a power interface are formed in the side wall of the box body, an antenna is arranged on the side wall of the box body, a fresh air channel, a ventilation system, a network interface, an illumination equipment and a square cabin power source are arranged inside the box body, an air inlet and outlet opening of the ventilation system communicates with the fresh air circulating opening through the fresh air channel, the network interface is located on the inner wall of the box body, the network interface is electricallyconnected with the antenna, and the power interface is used to be electrically connected with a vehicle battery pack. The interior of the box body is divided into multiple working areas which communicate with one another, and each working area is attached to the inner wall of the box body. The working areas include the soldering station working area, the dust-free working area, the equipment storage area, the server area and the comprehensive working area.