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    • 2. 发明专利
    • TEST PIECE CLAMPER FOR MATERIAL TESTER
    • JPS6432147A
    • 1989-02-02
    • JP3382188
    • 1988-02-16
    • SCHENCK AG CARL
    • ANDOREASU POORU
    • G01N3/04G01N3/08
    • PURPOSE: To eliminate the transversal force or bending load applied to a test piece by arranging clamping heads on a transversal frame so that the heads can be moved in the transversal direction against the arranging direction of a test piece. CONSTITUTION: A material testing machine is composed of a frame having struts 1', a table 2, and a transversal frame 3 and a loading device having a load cylinder 4 is positioned to the table 2. Clamping heads 5 and 5' which clamp a test piece 6 are respectively installed to the frame 3 and cylinder 4 and the head 5 is connected to the frame 3 with a clamping device 7 which can be moved in the transversal direction. A pressure medium is supplied to a sliding surface formed on the device 7 so as to form an oil film and, at the same time, the clamp connection is warmed so that the test piece 6 can be adjusted automatically to a proper position by the returning force of the test piece 6 itself. Therefore, the transversal force applied to the test piece 6 can be eliminated.
    • 6. 发明专利
    • TORSIONAL RIGIDITY JOINT
    • JPH06213241A
    • 1994-08-02
    • JP10253493
    • 1993-04-28
    • SCHENCK AG CARL
    • ANDOREASU POORU
    • F16D1/02F16D3/04F16D3/16
    • PURPOSE: To enable adjustment and correction that easily provide a play in a coupling and a play in a rotational direction by enabling slide guides and sliding surfaces to be fastened together. CONSTITUTION: This coupling comprises U-shaped coupling halves 1, 1' of the same shape on both sides, a central member 2, and a regulating/weight- extracting/connecting element. Slide guides 3, 3' are pressed against the coupling halves 1, 1' and have their guide faces formed on the inner surfaces of the legs of the coupling halves 1, l'. Sliding elements 4, 4' with sliding surfaces 5, 5' extending at right angles to each other on both sides are disposed at the central member 2, and cooperate with the slide guides 3, 3' when the coupling is assembled. The sliding elements 4, 4' are provided with through holes or recesses 6, 6' corresponding to the regulating/weight-extracting/connecting element or a counter bolt, the diameter of each hole being greater than that of a bolt to be passed therethrough. The coupling halves 1, 1' are provided with through holes 11, 11' or tapped holes 7, 7' which closely match the through holes 6, 6'.
    • 10. 发明专利
    • HIGH-SPEED RUPTURE TEST MACHINE
    • JPH0627006A
    • 1994-02-04
    • JP27553091
    • 1991-10-23
    • SCHENCK AG CARL
    • ANDOREASU POORUYOOZEFU BERAN
    • G01N3/08G01N3/00G01N3/04G01N3/30
    • PURPOSE: To set the rupture speed to the same speed as that of a load unit immediately after coupling of a tensile testpiece with a simple and low-cost constitution by disposing at least one releasable mass at a coupling position, and disconnecting the mass in the coupling step. CONSTITUTION: A reciprocating piston 3 is accelerated to a preset desired testing speed by a load unit 2. After an approaching distance is passed, the collision surface 21 of the piston 3 is collided with a clamping jaw 18 and the steady mass of an annular magnet 23 coupled to the testpiece 5 disposed longitudinally. The magnet 23 is disconnected based on the physical principle used in the case of the elastic collision, and collision energy is released. Accordingly, a tensile testpiece 5 is conveyed together with the jaw 18 bolt-coupled to the testpiece 5 via the surface 21 of the piston 3. To absorb the kinetic energy of the disconnected magnet 23, a damper 26 is provided at the bottom of the recess 17 of the piston 3. The jaw 18 is coupled to the unit 2 until the testpiece 5 is ruptured. To detect the actual force by a dynamometer 10, the magnet 13 in contact with the housing 9 is disconnected in the case of coupling.