020-32397223
020-32397223
Guangzhou institute of mechanical science - sealing and anti-icing mud test-bed
The basic test bed of this reciprocating seal is mainly used for the performance test of the reciprocating sealing products of small specifications. The equipment function is referred to the requirements of GB/T 32217-2015, and the color of the equipment is referenced in the test bench color specification.In order to meet the demand of long time trial and repeated test, the test bed should have the advantages of small energy consumption and convenient test and disassembly.In order to enhance the contrast function of the test bed, the test bed should adopt a two-mode drive (a drive cylinder to drive two test tanks) to realize the performance comparison of multiple seals at the same time.The test contents are as follows:
Test run test;Test of starting pressure characteristics;Test of friction force measurement;Test of pressure performance;Leakage measurement test;Dynamic test of pressure;Temperature test;Life test of the sealing part;Nine medium test
The basic test system of the reciprocating seal is as follows:
* (1) the subjects cavity pressure: 0 ~ 63 MPa, can set different impact pressure waveform, such as rectangular wave, etc.);
* (2) the subjects cavity oil temperature: - 45 ~ 120 ℃ (can realize heating and cooling medium);
* (3) seal diameter of axle: Φ 36 mm (seal groove can be replaced, to test five different structure of seal;Considering the extensibility of the test cylinder in the design of the platform, in the future, different test cylinders can be replaced according to the axial diameter of the tested seals, and the maximum diameter of the tested seals is 100 mm.
* (4) reciprocating stroke: biggest 500 mm trip (adjustable);
* (5) reciprocating speed: 0.05 ~ 1 m/s (no crawling under no-load drive cylinder, 0.5 m/s (including speed 0.5 m/s) under the circular curve precision meet the requirements of GB/T32217 9.1);
* (6) test bench taking yituo two drive form (that is, a driver drives the two subjects cylinder).
Anti-icing mud test-bed
The piston rod de-icing test-bed is mainly is to simulate reciprocating cylinder piston rod in the working condition of the use of shield, understand the reciprocating cylinder piston rod in the shield under the condition of low temperature (piston rod) frozen deicing performance.To simulate reciprocating cylinder piston rod in the working condition of the use of shield, understand the reciprocating cylinder piston rod in the shield under the condition of low temperature (piston rod) frozen deicing performance, this test-bed experiment content mainly includes:
(1)The starting test of the test bed;
(2)Test the ice test of piston rod;
(3)The test of the anti-dust coil of a piston rod.
Technical parameters of piston rod deicing test bench
The working conditions of piston rod are as follows:
(1) sealed cavity is the lowest temperature: - 70 ° C, adjustable;
(2) the largest ice thickness is not less than: 2 mm;
(3) the piston reciprocating maximum speed: 0.5 m/s.
(4) stem diameter: 80 mm Φ;
(5) of the piston rod range: 300 mm;
(6)The time interval between the two adjacent ice freezes (ice thickness 2mm) is not more than: 5min;
(7)All landowners piston rod internal cooling rate: 1 ℃ per minute on average.
(8)The working time of the equipment is 6-8 hours per day