Plunger pump sliding shoe pair oil film lubrication characteristic test bed capable of controlling oil film gap
A technology of oil film lubrication and oil film gap, which is applied in the testing of mechanical components, testing of machine/structural components, material inspection products, etc., and can solve problems such as the inability to adjust the thickness of the oil film and attitude
Active Publication Date: 2020-07-28
SHANGHAI JIAO TONG UNIV
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Problems solved by technology
[0003] In recent years, more attention has been paid to the oil film test of the plunger pump sliding shoe at home and abroad, but most of the test benches focus on the oil film characteristics under different working conditions, and cannot adjust the oil film thickness and attitude
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[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0023] The object of the present invention is to provide a plunger pump slipper pair oil film lubrication characteristic test bench with controllable oil film gap, so as to solve the problems existing in the prior art.
[0024] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodime...
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The invention discloses a plunger pump sliding shoe pair oil film lubrication characteristic test bed capable of controlling an oil film gap. The plunger pump sliding shoe pair oil film lubrication characteristic test bed comprises a servo motor, a torque sensor, a transmission shaft, a swash plate, a sliding shoe plunger set, a triangular star-shaped clamp, a cylinder body, a pull rod, a tensionand compression sensor and a stepping motor. The servo motor is connected with the transmission shaft through a coupler, the torque sensor is arranged on the transmission shaft, the swash plate is arranged in a transmission shell, the transmission shaft extends into the transmission shell to be connected with one end of the swash plate, the other end of the swash plate abuts against the sliding shoe plunger set, a sliding shoe is clamped by the triangular star-shaped clamp, and the cylinder body provides high-pressure oil for the sliding shoe plunger set. Eddy current displacement sensors arearranged on the triangular star-shaped clamp, the pull rod is further connected to the triangular star-shaped clamp, the pull rod is connected with the stepping motor, and the stepping motor enables the triangular star-shaped clamp to drive the sliding shoe to move through the pull rod. The test bench can control the thickness and attitude of the oil film generated at the sliding shoe and the swash plate, and can measure the oil film characteristics under different working conditions under any oil film thickness and attitude.
Description
technical field [0001] The invention relates to the technical field of lubricating characteristic test of oil film of sliding shoe pair of plunger pump, in particular to a test bench for lubricating characteristic of oil film of pair of sliding shoe of plunger pump with controllable oil film gap. Background technique [0002] Nowadays, the plunger pump has become an indispensable part of construction machinery, and its efficiency is mainly determined by the friction pair inside the plunger pump. The slipper pair is one of the three friction pairs of the plunger pump, and its oil film formation is mainly caused by two parts. One is introduced by the high-pressure oil from the oil cylinder through the damping hole of the plunger and the sliding shoe; the other is formed by the relative high-speed motion of the sliding shoe and the swash plate. During high-speed movement, the shoe is affected by the torque, and the swash plate will turn from a parallel state to an inclined sta...
Claims
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Login to View More IPC IPC(8): G01M13/00G01N33/30
CPCG01M13/00G01N33/30
Inventor 施光林王海吉
Owner SHANGHAI JIAO TONG UNIV