Micro traction force testing mechanism
A testing mechanism, traction technology, applied in force/torque/work measuring instruments, measuring devices, instruments, etc., can solve problems such as poor repeatability
Active Publication Date: 2021-05-28
NINGBO UNIV
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Problems solved by technology
The micro-traction test currently has the problem of coupling the normal pressure and the tangential traction force, and the repeatability is poor
Method used
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Embodiment Construction
[0022] Such as Figure 1-Figure 2 As shown, a micro-traction test mechanism of this embodiment includes a rigid arm 8, a flexible arm 9, a connecting block 7, a tension and pressure sensor 15, a connecting rod 16, a leveling column 6, a bottom plate 3, a counterweight 4, a measuring Head 11, weight 10, support frame 5 and support shaft 14;
[0023] The support frame 5 is installed on the base plate 3, and two support shafts 14 are arranged opposite to each other on the support frame 5, and a connection block 7 connected with the support shaft 14 is arranged between the two support shafts 14, and the connection block 7 can be wound around the support shaft. 14 rotation, one side of the connection block 7 is fixedly connected with the rigid arm 8 and the flexible arm 9, the rigid arm 8 and the flexible arm 9 are arranged parallel to each other and perpendicular to the support shaft 14, the rigid arm 8 is provided with a tangential flexible hinge 81, and the flexible The arm 9 i...
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A micro traction force testing mechanism comprises a rigid arm, a flexible arm, a connecting block, a tension and compression sensor, a connecting rod, a leveling column, a bottom plate, a balancing weight, a measuring head, a weight, a supporting frame and a supporting shaft. The supporting frame is installed on the bottom plate, two supporting shafts are oppositely arranged on the supporting frame in a spaced mode, a connecting block connected with the supporting shafts is arranged between the two supporting shafts and can rotate around the supporting shafts, one side of the connecting block is fixedly connected with the rigid arm and the flexible arm, and a tangential flexible hinge is arranged on the rigid arm. A normal flexible hinge is arranged at the position, close to the connecting block, of the flexible arm, the other end of the rigid arm is fixedly provided with a pull pressure sensor and connected with the flexible arm through a connecting rod, the connecting rod is horizontally arranged and is perpendicular to the flexible arm, a measuring head is installed at the other end of the flexible arm, and a weight is placed on the upper portion of the measuring head; and a balancing weight is fixed to the other side, opposite to the side, of the connecting block. The radial pressure and the transverse micro traction force of the bearing are decoupled, so that the test result is accurate and reliable.
Description
technical field [0001] The invention relates to a testing mechanism, in particular to a micro-traction testing mechanism. Background technique [0002] The test of micro traction force is widely used in the fields of bearing friction torque test, friction pair friction test, lubricating oil friction performance test and so on. At present, the micro-traction test has the problem of coupling between normal pressure and tangential traction, and the repeatability is poor. Contents of the invention [0003] The present invention provides a micro-traction test mechanism to overcome the deficiencies of the prior art. [0004] The invention adopts a flexible hinge structure to decouple the radial pressure and lateral traction force of the bearing, so that the test result is accurate and reliable, and the test efficiency is improved. [0005] A micro-traction test mechanism, comprising a rigid arm, a flexible arm, a connecting block, a tension and pressure sensor, a connecting ro...
Claims
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IPC IPC(8): G01L5/00
CPCG01L5/00
Inventor 夏仁良李锦棒方群胡旭东李建勇
Owner NINGBO UNIV