I. Overview: "XWP-100W microcomputer controlled rotating bending fatigue testing machine" adopts computer control and frequency conversion speed regulation technology, which is suitable for black gold The metal circle was measured by pure bending fatigue test under symmetrical repeated alternating bending stress at room temperature/high temperature Fatigue properties of a V cross section specimen subjected to bending torque under rotating conditions. Program control test speed, automatic data processing, test The test method meets the relevant requirements stipulated in GB/T4337-2015 "Rotating Bending Method for fatigue test of Metal Materials". Second, the main structure and functional characteristics of the test bench: 1, high-speed speed motor drive precision spindle to drive the sample high-speed rotation, weight loading to apply bending moment, the sample under high-speed rotation conditions 7,Fatigue performance tested by bending moment; 2, high-speed frequency modulation motor drive rotation, computer control frequency control, speed adjustment range 1000r/min-10000r/min, Speed fluctuation ≤±0.5%; 3, equipped with high-speed headstock, with perfect lubrication and cooling device, suitable for long-term high-speed under the condition of rotating bending moment Drive the sample for testing. Cooling method: circulating water cooling, with cooling circulating water device; 4, the configuration of high-precision high-speed elastic fixture to grip the sample, good for neutral, easy to load and unload the sample; specimen holding end form: round. Spindle radial runout ≤0.03mm; Sample holding end diameter range: Φ8-Φ20mm. Random configuration Φ12mm, Φ15mm (or according to the protocol user
Optional);
9, Applicable sample diameter Φ4mm-Φ9.5mm. 10,5. The loading seat is equipped with linear guide rail, and the loading lever can be adjusted continuously, suitable for the sample length range of 70-260mm; XWP-100W microcomputer controlled rotary bending fatigue testing machine technical scheme Page 2 of 5 11,6, bending moment loading device: 12, combined weight loading, equipped with damping spring, effectively reduce vibration, ensure smooth loading; 13, A limit trigger device is configured to automatically stop the sample when fatigue breaks; 14, combined weight weight 0.1-50N, weight accuracy ≤±1%, the number of weights 25, can be combined up to 100N loading; 15,7, with the test number preset, speed setting and other functions. Configure digital counter to record the number of tests, the maximum number of counting value ≥109 times;
8, computer measurement and control software system: Based on Windows operating system, data display, test operation, counting and other functions program set test speed, test frequency, test times; The computer screen displays the test speed, frequency, number of tests, bending stress, etc. Support printer print test report, test report can be edited. 9, the configuration of push-pull plexiglass protective cover, fully cover the sample, effectively ensure the safety of the test; XWP-100W microcomputer controlled rotary bending fatigue testing machine technical scheme Page 3 of 5 10, the system has the test number reached the set value, sample fatigue fracture and other automatic stop protection function; 11, the testing machine has perfect protection function, such as: power off, motor overcurrent, temperature over limit, test times to reach the set value, sample Break and other shutdown or alarm protection function. 3. Main technical indicators 1, bending moment loading mode: cantilever beam weight loading; 2, the main shaft radial static runout ≤0.02mm, the main shaft radial dynamic runout ≤0.03mm; 3, test speed range: 1000r/min ~ 10000r/min, speed fluctuation ≤+/-0.5%; 4, the maximum counting capacity ≥109 times; 5, speed adjustment mode: frequency control, digital setting; 6, power supply: three-phase five-wire (special grounding) 380V±10%, 50Hz±1%; 7. Bending moment loading method: combined weight loading. Bending load weight series mass: 0.1N-100N, accuracy ≤±1%; 8, the maximum bending stress 1000MPa, the maximum bending moment 15Nm, bending moment relative error ≤±1%; 9, the maximum load of weight combination 100N, the number of weights 25; 10, sample clamping method: high-speed precision elastic fixture. specimen holding end form: round. Spindle dynamic runout ≤0.03mm; Sample holding end diameter range: Φ8-Φ20mm Sample length range: 70-260mm. 11, equipped with digital tester and computer measurement and control system, digital display and computer screen display test results, 12, protection function: with complete protection function, such as power failure protection, motor overcurrent protection, sample broken automatic shutdown protection, furnace temperature protection The equipment is equipped with push-pull plexiglass protective cover; 13. The test method meets the relevant requirements stipulated in GB/T4337-2015 "Rotating Bending Method for Fatigue Test of Metal Materials". 14, the total power of the equipment ≤4kW. 15, the main machine dimensions: 1500mm×550mm×1050mm. 16, the net weight of the host: 450 Kg