138results about How to "The test went well" patented technology

The invention discloses a thermal error measuring and integrating system for a numerical control machine tool. The thermal error measuring and integrating system is characterized by comprising a temperature measuring unit, a thermal displacement measuring unit, an industrial control machine and a display unit, wherein the industrial control machine is used for carrying out real-time staged modeling by using a thermal error function according to temperature detection data and thermal displacement deformation detection data which are saved in real time, carrying out precision evaluation on the temperature detection data and the thermal displacement deformation detection data and judging the stability and the precision of a model. The thermal error measuring and integrating system has low cost and high precision, is simple and practical and provides a support of an experimental device for thermal error compensation research and application of the numerical control machine tool.

The invention discloses an ultrahigh-temperature thermal current simulation system used for a spacecraft vacuum thermal test in a vacuum container. The ultrahigh-temperature thermal current simulation system mainly comprises a semi-cylindrical graphite heating array, high-reflectivity high-temperature thermal insulation assembly units, a graphite heating array installing support, an ultrahigh temperature measuring unit and a power-regulator power control unit. A plurality of graphite heating rods are arranged and combined into the semi-cylindrical graphite heating array according to the requirements for the density and uniformity of thermal currents. Each graphite heating rod is composed of a graphite heating body and a graphite electrode, alternating-current electricity supply is adopted, and wiring electrode leads penetrate through a high-current cabin-penetrating electricity supply flange arranged on a container wall of the vacuum low-temperature environment simulation container and are electrically connected with the temperature measuring unit and the power-regulator power control unit respectively. Through the unique design of the graphite heating array, the high-reflectivity high-temperature thermal insulation assembly units and the ultrahigh temperature measuring unit, measurement of and control over temperatures over 1800 DEG C in the space environment simulation container are achieved, and the ultrahigh-temperature thermal current simulation system is also suitable for high-temperature and high-thermal-current environment simulation requirements in vacuum thermal tests of all types of spacecraft.

The invention provides a local cabin section model for a ship impact resistance test, which is a box body formed by a dual-layer bottom compartment, a ballast compartment and a buoyancy reserve compartment. The shape of the cross section of the box body is as same as the shape of an area with length being 5-7 times of frame space along the length direction of a ship to be tested, width being halfof the width of the ship along the width direction of the ship and height being above 3-5m from the bottom of the ship up to the inner bottom along a vertical direction. The dual-layer bottom compartment is arranged at the bottom. The buoyancy reserve compartment is arranged right above the dual-layer bottom compartment. The ballast compartment consists of two independent watertight compartments,which are respectively arranged at the front and the rear of the dual-layer bottom compartment and the buoyancy reserve compartment. By designing a 1:1 actual-size typical cabin section model to carry out relevant impact resistance tests to research the local strength of a ship structure, the inaccuracy caused by a too simplified structure during a local grillage model test can be effectively remedied, the defects of high expense, difficult implementation and the like of a real ship test can be avoided and the problem that a scale model test is difficult to be converted into a similar test ofa real ship can be solved at the same time.

The invention discloses a slip casting diffusion testing device. The slip casting diffusion testing device comprises a columnar permeation device and a monitoring system, wherein the columnar permeation device comprises a columnar steel pipe, and an entrance cabin and an exit cabin which are mounted at the two ends of the columnar steel pipe; porous plates and filter screens are mounted among the entrance cabin, the exit cabin and the columnar steel pipe; each of the entrance cabin and the exit cabin is provided with a slurry inlet and a slurry outlet which are communicated with the cabin; the top of the exit cabin is provided with a full-thread compaction screw rod which stretches into the exit cabin; the inner wall of the columnar steel pipe is frosted and is uniformly coated with grease; the columnar steel pipe is composed of a plurality of sections of single body steel pipes which are mutually nested by using steel ring welding type rapid hoop connectors; and each section of single body steel pipe is formed by mutually buckling two semicircular bodies which are vertically symmetrical. Meanwhile, the invention further discloses a testing method of the device. The slip casting diffusion testing device is simple to operate, and has an adjustable size, high bearing performance and strong sealing performance; and side wall effects can be eliminated and key parameters of slip casting can be monitored in real time.

The invention belongs to the technical field of mechanics test devices, and specifically relates to a high-energy accelerator CT rock mechanics test system. The high-energy accelerator CT rock mechanics test provided by the invention comprises a mechanics test machine, a high-energy accelerator CT ray source and a detector, the mechanics test machine is arranged between the high-energy acceleratorCT ray source and the detector, the mechanics test machine comprises a fixed component, a rotary apparatus and a pressure chamber, the rotary apparatus is arranged on the fixed component, the pressure chamber is connected with the rotary apparatus, and when a test is executed, the pressure chamber can rotate relative to the fixed component under driving of the rotary apparatus. The test machine is provided with the rotary apparatus, and when the test is executed, the pressure chamber is driven by the rotary apparatus to rotate, namely, a test sample can be scanned in a process in which a loadtest is executed for the test sample, consequently, CT imaging can completely reflect a structural state of the test sample when the test sample is loaded, and scientific researches are facilitated more.

The invention belongs to the technical field of function test, and relates to a test method for verifying the opening and closing functions of a cargo door designed specific to the opening and closing function test of the cargo door. According to the method, the state of the cargo door during opening and closing function test can be accurately simulated; problems can be found and solved in time in a testing process, and smooth proceeding of the test is ensured; the test risk is lowered, and the safety of the test and test articles is ensured. A test method for verifying the opening and closing functions of the cargo door is realized, the accuracy of test verification is improved, the safety of test is ensured, the problem that the test state cannot be accurately simulated and problems cannot be found in the test process existing in the conventional method are solved, and smooth proceeding of the test is ensured by making adjustment in time.

The invention provides a horizontal type current-carrying friction arc tester and relates to an arc tester. The horizontal type current-carrying friction arc tester comprises a sample clamping driving device, a bidirectional moveable carrying table, a circumference surface and a current loading device, wherein the sample clamping driving device is used for driving a cylindrical test sample to rotate around the axis thereof; the bidirectional moveable carrying table can move along the axial direction of the cylindrical test sample and the axial direction vertical to the cylindrical test sample; the circumference surface is used for driving an upper probe which is axially clamped and is vertical to the cylindrical test sample to move, so as to drive a contact of the probe to be away from or contact with the cylindrical test sample; the current loading device is used for forming a closed circuit between the probe and the cylindrical test sample under the contact state; the current loading device is used for transmitting the current to the cylindrical test sample through an ejector pin coaxially arranged together with the cylindrical test sample; a conical needle of the ejector pin is in contact fit with a conical needle groove formed in one end of the cylindrical test sample. The horizontal type current-carrying friction arc tester can ensure the stable current conduction when the test sample is rotated at high speed and can be used for researching the erosion purely caused by arc and the conductive quality when a current loading friction pair is separated.

The invention provides an experimental arrangement and installation method of large motors, which is matched with a field with an experimental pit, and is characterized by comprising a preparation step, a stator placement step, a rotor placement step, a stator and rotor installation step and a correction step. By the method disclosed in the invention, large motors can be stably installed, ensuring successful proceeding of an experiment; the prior field can be utilized, with no need of additionally constructing a special experimental field; and the operation is more convenient.

The invention relates to the technical field of coal assay, in particular to a crushing device for coal assay. The crushing device for coal assay comprises a crushing box, a crushing shaft, a crushingmotor, a plurality of rotating plates, a plurality of annular hammers, crushing plates, a separation fan, a screening box and a screening device, wherein the two ends of the crushing shaft are rotationally connected with the inner side wall of the crushing box; the crushing motor is mounted on the rear side of the crushing box; the crushing shaft is evenly sleeved with the plurality of rotating plates; the plurality of annular hammers are rotationally connected with the two ends of the plurality of rotating plates respectively; the two ends of the crushing plate are fixed to the two sides ofa second feeding port respectively; the separation fan is mounted on the left side wall of a discharging pipeline; the air outlet end of the separation fan is communicated with the interior of the discharging pipeline; the top of the screening box is communicated with the bottom end of the discharging pipeline; and the screening device is mounted in the middle of the interior of the screening box.According to the crushing device, the crushing size of coal can be adjusted according to assay requirements, small-particle coal and coal powder which do not meet the assay requirements can be screened, and it is guaranteed that coal assay is conducted smoothly.

The invention provides a pressure tank device for simulating a deep oversea external pressure test. The pressure tank device for simulating the deep oversea external pressure test comprises a pressure tank body, a pressure tank top cover, a guide plate and a fixing plate; the filling opening of the pressure tank body faces upwards; the pressure tank top cover is downwards inserted into the filling opening of the pressure tank body and seals the pressure tank body; the fixing plate is located above the filling opening of the pressure tank body; a driving mechanism is arranged on the fixing plate; the pressure tank top cover is connected below the fixing plate through a driving mechanism; and the driving mechanism is used for driving the pressure tank top cover to vertically move so as to insert the pressure tank top cover into the pressure tank body or take out the pressure tank top cover from the tank body. According to the pressure tank device for simulating the deep oversea external pressure test of the invention, a rotary stand column is connected with the fixing plate, so that a rotary structure can be formed, so that the pressure tank top cover can be conveniently driven to move above the pressure tank body, and therefore, test personnel can conveniently, rapidly and safely pick a part under test from the pressure tank and place the part under test into the pressure tank; the driving mechanism can automatically lift and lower the pressure tank top cover, and insert the pressure tank top cover into the pressure tank body or take out the pressure tank top cover from the pressure tank body, and thus, the labor intensity of operators is greatly reduced.

The invention discloses a device and method suitable for an in-situ direct shear test of a rock-soil body in a tunnel. A set of test loading device adopts a strain control type, and the test process is completed by manually pressing to control the displacement of a sample. The device and method suitable for the in-situ direct shear test of the rock-soil body in the tunnel have the advantages thatfor the complex test conditions in the tunnel, the site environment characteristics are fully combined, the structure is simple, the disassembly and assembly are easy, the operation is convenient, thedata recording accuracy is high, an ordinary technician can quickly grasp the method, the stability of the whole experimental process is improved, and the safety of the test process and experimentersare fully guaranteed.

The invention relates to a device and method for multi-directionally loading universal K-shaped nodes. The device comprises a counterforce frame, and a main material pull and pressure loading device and an auxiliary material pull and pressure loading device which are arranged in the counterforce frame, wherein the main material pull and pressure loading device comprises a tensioning jack and a movable pressure bearing box and a counterforce device which are detachably connected in the counterforce frame, one end of a main material of the K-shaped node and the counterforce frame are fixedly arranged, and the other end is a loading end; the auxiliary material pull and pressure loading device comprises a pressure jack and a pull jack which are fixedly arranged in the counterforce frame, the pressure jack is coaxially arranged with an auxiliary material of the corresponding K-shaped node for pressure loading, and a pull rod in a piston of the pull jack is coaxially fixed with the auxiliarymaterial of the corresponding K-shaped node for pull loading. The connection angle between pipes is adjusted on the basis of the pressure multi-directional loading device and the pull multi-directional loading device of the main material and the auxiliary material to realize the multi-angle force test of the node, and the tension and pressure are applied to the outside of the plane of the pipe node by a hydraulic jack.

The invention provides a travel reducer test system, solving the problem that the existing travel reducer test system is high in cost, large in occupied space and low in efficiency. The test system comprises a test platform, a third coupler, a main test unit and an accompanying test unit; the main test unit and the accompanying test unit are arranged in a mirrored manner via the third coupler; themain test unit comprises a loading motor, a first coupler, a first loading tool, a main travel reducer to be tested and a first transition connection tray connected in sequence; the accompanying testunit comprises a load motor, a second coupler, a second loading tool, an accompanying travel reducer to be tested and a second transition connection tray connected in sequence; the first loading toolis used for achieving dynamic loading performed by the loading motor on the main travel reducer to be tested; the second loading tool is used for achieving dynamic loading performed by the load motoron the accompanying test unit; the loading motor and the load motor are separately connected with the output end and the input end of the test platform, and thus the test platform, the main test unitand the accompanying test unit are formed into a closed loop connection.

The invention discloses a test device for the conduit burst pressure under static conditions and a working method thereof and belongs to the technical field of medical apparatus detection. The test device includes a body, wherein the body is internally provided with a pressure device container, one end of the pressure device container is in sliding connection with a liquid push device, the other end of the pressure device container is provided with a liquid inlet and a liquid outlet, the liquid outlet is communicated with a conduit interface, a ball screw transmission mechanism is formed between the liquid push device and a driving device, one end opposite to the driving device is provided with a constant temperature water bath tank and a water pipeline, a liquid outlet pipe is internallyprovided with a pressure sensor, the driving device is provided with a controller, and the pressure sensor is connected with a controller of the driving device. The invention further discloses the working method of the test device. The test device is advantaged in that the fluid with the stable rate is supplied into the conduit, the conduit is guaranteed to be in the constant temperature environment, and test requirement in accord with the industrial standards is met.

The invention provides a special-shape cabin external pressure device. The special-shape cabin external pressure device includes: an annular rubber container, and a rubber container limiting support device. The annular rubber container is sleeved on the outer surface of a test piece, and the rubber container limiting support device is installed on the outer surface of the rubber container. The special-shape cabin external pressure device can satisfy the loading requirements of special-shape cabin outer wall non-uniformly distributed external pressure test, not only meets the need of special-shape cabin segmented non-uniformly distributed large load external pressure loading, at the same time effectively improves the special-shape cabin external pressure test efficiency, and promotes the smooth progress of the test.

Provided is a load mechanism for an aircraft anti-G tester. The load mechanism for the aircraft anti-G tester includes a rod, a counterweight block, a rings, bolts, a clamp collar, a circular nut, a support rod, a bearing, a shaft pin, a nut, a jacking rod, a hook and a weight; the counterweight block is fixed to the rear portion of the rod through the bolts, the support rod is mounted on the tailportion of the rod through the bearing and the shaft pin, the circular nut is connected with the support rod through the nut, the ring is arranged at the front end of the rod, the weight is hollow, and a screw plug is arranged on the weight and is hooked on the ring through the hook. According to the load mechanism for the aircraft anti-G tester, by using a lever principle, a loading process is conducted outside a finished product, and a lever amplification principle is adopted to reduce the size of the weight, so that the problem is solved that due to small and narrow space, loading cannot be carried out, and aircraft anti-G system tests can be conducted smoothly, working normality of an aircraft anti-G system is effectively verified, the test efficiency is improved, and air safety of aircrafts is ensured.

The invention provides a multipoint loading stress application cap for a static test, which is characterized in that a hollow cylindrical force bearing column is adopted as a main force bearing structure in the center, and a plurality of ray force bearing beams distributed at equal included angles are fixed on the outer circumference of the force bearing column to serve as a main lever force transmission structure; a mounting hole is formed in the front surface of the outer end of each bearing beam as a loading point, and the centers of all the mounting holes are located on the same circumference with the center of the bearing column as the circle center. According to the multi-point loading stress application cap, on the basis that the test function of a traditional stress application capcan be completed, loads such as axial pressure and bending moment can be applied more evenly, and most installation errors are reduced; the mounting holes are formed in the front face and the side face of the outer end of the force bearing beam, loads such as shearing force and axial pressure can be conveniently achieved, and smooth testing is guaranteed.

The invention relates to the technical field of pharmaceutical processing and discloses automatic titration apparatus capable of checking multiple samples simultaneously. The automatictitration apparatus comprises a stand, wherein a test tube plate is fixedly connected with the outer side of the stand; multiple limit holes are formed and are favorable for placing multiple sample bottles for simultaneous titration, the titration efficiency is increased, the device can have centering and limiting effects on the sample bottles with multiple sizes, and a solution in a liquid storage bottle is enabled to fall into the sample bottles accurately; a rotating rod drives a rotating disc to rotate to cause vertical movement of a press plate, a power source is provided for follow-up extrusion of a rubber pipe and pressing of the liquid storage bottle, linkage of the device is increased, the operation is more convenient, manual titration is avoided, both hands are liberated, working intensity is reduced, and test errors are reduced; the rotating rod drives a gear to rotate to cause spiral track rotation of a toothed bar, the liquid storage bottle is driven to rotate synchronously, the track ofthe liquid storage bottle is consistent with that of the limit holes, the liquid storage bottle is enabled to be located above the limit holes all the time, and smooth titration work is ensured.