A test bench for simulation and measurement of lateral force of plunger motion of high-speed plunger pump

Abstract

The invention discloses a plunger movement lateral force simulation and measurement test bed for a high-speed plunger pump. According to the test bed, a main cavity is fixed to the top surface of a table body; a rotating part is connected in a cavity body of the main cavity in a rotating mode; a driving part is arranged in the table body and is used for driving the rotating part to rotate; a plunger cavity is fixed to the top of the main cavity in a sealed mode; a lining is arranged in a cavity body of the plunger cavity in a sleeved mode; the space between the inner wall of the plunger cavityand the side wall of the lining is filled with a layer of resin; a plunger is movably connected into the lining; the bottom of the plunger is connected to the rotating part; the plunger is driven bythe rotating part to moves up and down; a screw penetrates through the side wall of the plunger cavity to be fixedly connected to the side wall of the lining and is connected with a force applying assembly; and a plurality of force sensors are fixed to the side wall of the plunger cavity and are connected to the side wall of the lining. The test bed has the advantages that the outward centrifugalforce is simulated on the lining, the force sensors can measure the lateral force of the plunger, and therefore the defect that a traditional test bed lacks consideration of the centrifugal force during the test can be overcome, the simulation effect is good, and the measuring precision is high.

Description

technical field [0001] The invention relates to the technical field of plunger motion simulation tests, in particular to a plunger motion lateral force simulation test bench for high-speed plunger pumps. Background technique [0002] At present, plungers are mainly used in pumps or compressors to transfer fluids. The swash plate axial piston pump mainly includes the main shaft, cylinder body, plunger, sliding shoe, return plate, swash plate, etc.; its working principle is: driven by the motor, the main shaft drives the cylinder body to rotate through the spline connection, and the cylinder body rotates. The body drives the plunger to rotate, and the plunger reciprocates in the cylinder bore under the action of the swash plate and the return plate. The plunger head is equipped with a sliding shoe. Due to the action of the return plate, the bottom of the sliding shoe is always kept in contact with the swash plate. . In order to achieve precise switching between the reciproca...

AI Technical Summary

Problems solved by technology

There are already some test benches for plunger performance research at home and abroad. However, the existing structures mostly focus on low-speed and large-displacement pumps, ignoring the influence of centrifugal force on the lateral force of the plunger at high speeds. Centrifugal force has little effect at high speed, but at high speed, centrifugal force cannot be ignored

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