A screw transmission efficiency testing device

A technology for screw transmission and efficiency testing, applied in measuring devices, force/torque/work measuring instruments, power measurement, etc., can solve the problem of difficult to simulate the friction and wear state of the screw pair, which affects the authenticity of the test data, and the axial load of the screw pair is small and other problems, to achieve the effect of simple structure, ingenious design, and elimination of frictional moment

Inactive Publication Date: 2009-03-04
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The test system has a single speed, or the axial load of the screw pair is small (<100N), it is difficult to simulate various actual friction and wear states of the screw pair, especially the low-speed and heavy-duty working conditions
In addition, in the test device using a torque sensor, the anti-rotation device installed to prevent the rotation of the nut under test will inevitably introduce additional friction during the test process. When the axial load of the screw pair is large, the additional friction Will seriously affect the authenticity of the test data

Method used

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  • A screw transmission efficiency testing device
  • A screw transmission efficiency testing device
  • A screw transmission efficiency testing device

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Embodiment

[0010] The principle diagram of the test device of the present invention is shown in Figure 1, comprising a lathe headstock 1, a tool rest carriage containing a large carriage 3 and a middle carriage 4, a lathe tailstock 6 with a tailstock top 5, and a loading device A , test device B, tested nut 11, tested lead screw 12, wherein test device B comprises rigid cantilever bar 7, force sensor 8, sensor seat 9, data acquisition and display system 10, and tested lead screw 12 one ends are clamped on In the chuck 2 of the headstock 1 of the lathe, the top 5 of the tailstock on the tailstock 6 of the lathe is pushed against the center hole at the other end of the screw 12 to be tested, and the nut 11 to be tested and the screw 12 to be tested form a screw transmission pair, and the rigidity One end of the cantilever rod 7 is fixedly connected to the loading device A, and the other end of the rigid cantilever rod 7 is connected to the force sensor 8 floating to prevent the nut under te...

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Abstract

The invention relates to a screw drive efficiency testing device. It includes the lathe headstock, contains big base plate and the tool rest base plate of center cargo chute, the belt tail stock apex lathe tail stock, the measured nut, the measured guide screw, the loading installment, the testing device. Among testing device includes rigidity arm bar, the force transducer, the sensor place, the data acquisition and the display system. This invention may realize helicoid under the different contact operating mode, simulate helicoid multi-friction attrition condition, and also may increase the test precision.

Description

Technical field: [0001] The invention relates to a testing device for screw transmission efficiency, in particular to a motion driving mode in which a common lathe is used as a frame, and the transmission system of the lathe when turning threads is used as the motion driving mode of the tested screw pair, and the test screw pair is tested under different friction conditions. transmission efficiency device. Background technique: [0002] The existing screw transmission efficiency test system can only be used for experimental teaching, and the test device is generally composed of a micro-motor, a reducer, a torque speed sensor, and a data acquisition and display system. The test system either has a single speed or the axial load of the screw pair is small (<100N), so it is difficult to simulate various actual friction and wear states of the screw pair, especially the low-speed and heavy-duty working conditions. In addition, in the test device using a torque sensor, the ant...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L5/00G01L5/12G01L3/26
Inventor 孙友松周先辉魏良模肖思农
Owner GUANGDONG UNIV OF TECH
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