Crankshaft Fatigue Test Clamping Device
A technology of fatigue test and clamping device, which is applied in the direction of measuring device, testing of mechanical components, testing of machine/structural components, etc. It can solve problems such as difficult tightening of large load tests, easy damage of threaded holes, and impossibility of testing, etc., to achieve Improve the utilization rate of the fixture, ensure the tightness, and the effect of simple structure
Active Publication Date: 2016-05-18
TIANRUN IND TECH CO LTD
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Problems solved by technology
[0003] At present, the domestic crankshaft fatigue test clamping method adopts a single inner and outer tapered sleeve to tighten the sample. This clamping method is not easy to tighten for large load tests, and the threaded hole on the outer tapered sleeve is often subjected to increased axial force. But easy to damage, low utilization rate
The crankshaft fatigue test is often unable to be carried out due to the loose clamping of the sample
Method used
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[0019] from figure 1 It can be seen from the figure that a crankshaft fatigue test clamping device includes an inner sleeve 5, an outer sleeve 2, a compression sleeve 4, and a vibrating plate 1. The crankshaft main journal 6 is installed in the inner sleeve 5, and the outer sleeve 2 is located on the vibrating plate 1 through-hole.
[0020] The outer surface of the inner sleeve 5 and the inner surface of the outer sleeve 2 are respectively provided with two conical surfaces raised towards the middle, and the two conical surfaces on the outer surface of the inner sleeve are symmetrically arranged to form a double-cone inner sleeve; The cones are arranged symmetrically to form a double cone jacket. The inner and outer surfaces of the compression sleeve 4 are correspondingly provided with conical surfaces corresponding to the inner sleeve and the outer sleeve. The compression sleeve 4 is a double-cone compression sleeve, and the two compression sleeves 4 are formed from two The...
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The invention relates to a clamping device for a bent axle fatigue test. The clamping device comprises an inner sleeve, an outer sleeve, a compaction sleeve and a vibrating plate, wherein a main journal of a bend axle is arranged in the inner sleeve, the outer sleeve is located in a through hole of the vibrating plate, two conical surfaces which bulge towards the middle are respectively arranged on the outer surface of the inner sleeve and the inner surface of the outer sleeve, two conical surfaces corresponding to the conical surfaces of the inner sleeve and the outer sleeve are correspondingly arranged on the compaction sleeve, the compaction sleeve is symmetrically arranged between the inner sleeve and the outer sleeve from two sides, a connecting bolt is arranged in the middle of the compaction sleeve, the two compaction sleeves move towards the middle through tensioning the connecting bolt on the compaction sleeve so as to extrude the inner sleeve to compact the main journal of the bent axle, the outer sleeve compacts the pore wall of the vibrating plate, and thus the purpose of firmly clamping a bent axle sample on the vibrating plate is realized. The clamping device is reasonable in structure, large in firmness of clamping the sample, and easy to dismantle, and is an ideal clamping device for the bent axle fatigue test.
Description
technical field [0001] The invention relates to a crankshaft strength test device, in particular to a crankshaft fatigue test clamping device. Background technique [0002] The crankshaft fatigue test uses a special fixture to clamp the test crankshaft or crank, and then repeatedly applies a load to a certain point of the fixture through a vibrator or an eccentric wheel to test the fatigue strength of the crankshaft. The expansion sleeve is a keyless connection device, which generates a positive pressure between the expansion sleeve and the shaft or sleeve surface by tightening high-strength bolts, accompanied by friction, and realizes a keyless connection for load transmission. The expansion sleeve connection mainly has the following advantages: no need for high-precision manufacturing tolerances; high strength, stable and reliable connection; easy installation and disassembly; good interchangeability. [0003] At present, the domestic crankshaft fatigue test clamping meth...
Claims
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IPC IPC(8): G01N3/04G01M13/00
Inventor 丛建臣倪培相孙军王磊
Owner TIANRUN IND TECH CO LTD