DE1918052A1 - Testing device for determining the frictional connection, deformation and weak points of the blade attachment of turbine blades - Google Patents

Description

Licatis
Patent-Verwaltungs-G »mb .H · 6 Frankfurt (Main), Theodor-Stern-Kai i

F 69/17 thrust / at

27.3.69

Test equipment "for determining ά · # · force conclusiveness * deformation and weaknesses · represents Sohaufelbefestigung of turbine blade

Zusats to the sponsor
P'l7 73 300.1 vo »

Da »main patent (patent application P 17 73 500.1)

refer to a «test facility eur determination of the force • The shovel is closed, deforestation and weak metals · Bafeatlgung το »Turbines» Shovel ». The facility has one clampable frame, with valehem on a yoke the shovel or a "shovel with a shovel root and a simulated runner segment of the runner" can be attached, with the ab " This yoke is supported on the opposite yoke by a spring element. There is one on the opposite yoke

• 2

003 * 86/0099

The device is arranged according to the centrifugal force rotating shovel «effective power on the Lauferseg» meat exerts, while another device is provided which exerts forces on the shovel, the Aa in the axial and tangential direction to the rotor occurring damping force ten match

The present invention is based on the object * to achieve such a storage of the sample to be tested that the Forces acting on the sample can be applied almost smoothly.

According to the invention, this object is achieved in that one end of the sample is freely suspended by a pressure system. The pressure system expediently consists of an arm plate and a swinging pan, both of which have connections for a pressure medium, and also with a central bore for the passage of the end of the sample bssw its holder, and the yoke assigned to the pressure system is adapted to a rounded fly in the area of the oscillating pan ύ νη

The invention is based on a sehematisea in the drawing illustrated embodiment explained in more detail

Ss «own ..

Pig · 1 a possible principal exhibition

Tig «.2 a training of the used

Sohiütt,
Fig «3 another training dee

In the figures, the same elements and the same wear

- 3 009888/0099

.. · ■ ■>

Di · tester «real of a cream ·» use that for recording a sample 1 is used «The frame consists of« sirel yokes 2,3 and swei support hilts 4,5 «Aa yoke 3 is • arranged in · hydraulic clamping device 6, which «in · Binspannklau · 7 for «in the end of the sample 1 has · For the other · At the end of the sample 1, another clamping claw 8 is provided. The claw 8 is connected to a Bolsen 9, veleber through a hole in the yoke 2 is guided «

Invention according to Kfi is this bolt 9 in one turn «· plate 10 and a vibrating pan 11 existing pressure system stored.

Di · accurate formation of this D.rueksystems be seen from Figures 2 and 3 · The bolt 9 is "out ine bore 13 d ·· turntable 10 'through a bore 12 of the vibrating pan 11 and through through" ine Sehraube Ik turntable 10 and vibrating pan 11 · pressed against the yoke 2 elements 2 and 11 have j · a · hat EUR Shoo · de "on them aufgasetBten element 11" 10 dia turntable 10 has "inen port 15 aur recording ® ± m. <8® Sn - ^: .slm * diume (granulated liquid or. gas) · Di® SclnwingpfiüS'uo Ii has on each side · also a connection 16,17 for receiving a · - pressure medium ·

The mode of operation of the training is following

The hydraulic clamping device 6b is applied over 1ηη Bolsen iÖ di · Prob «nbe.festigung 7 with a static force, those rotating when examining blades of the centrifugal force Sohaufel corresponds to “The sample is like in the Kaupt patent 1 so stressed on train "

Invention * according to & ß is also liquid under high pressure

009888/0099

BAO ORIOINAl.

and / or Ge "through the connection 15" 16, 17 of the turntable "and the Schwiagpfaane 11 pressed. As a result, the swing pan 11 is lifted from the yoke 2 and the turntable 10 is lifted from the swing pan 11 by an amount corresponding to the flow rate. This creates a liquid or gas cushion for elements 10 and 11.

Bending and torsional forces Pg, P ^, can thus act on the sample 1 without any anatthemic action.

Di · tensioning device 6 is equipped with a terminal 19, a pressure medium door and "lnem only schematiech Aage" pointed ", controllable valve 20, as through" with di · can be eliminated by the • rflndungsgemäde Drucksyst "m elevated tensile forces. ·

Ia the Pig «3 is only the Schwiagpfatin · 11 with connection ·» 16,17 for «in print medium, which over in the Schwittgpfaaae 11 arranged cannula 21 «22 on the yoke 2 uad the turntable 10 acts. Furthermore, it is on the turned ^ era • placed in cutting edge bearing 23.

009886/0099

Claims (1)

Licentia Patent ~ Verwaltungs-G.m.b.H. P 69/17 thrust / at 27.3. 69, claims 1./Testing device for determining the frictional connection, deformation and Sohwachstellea the blade attachment of turbine blades by means of a frame »in which on a yoke the blade or a blade part with blade root and a simulated lobe segment of the rotor can be attached and a device is arranged on the opposite yoke one of the centrifugal force of the rotating blade aueübt corresponding force to the rotor segment and a further device is provided which exerts on the blade XrKfte, like the de "in the axial and tangential direction it SRAM La'uf he Dämpfkraften occurring corresponds to Patent .. ·· ... · (Patent application P 17 73 500.1), characterized in that one end of the blade is freely suspended in the pressure system. 2 · test device according to claim 1, characterized in that the printing system consists of a Turntable (10) and a swing pan (11) with an Keys (15, 16, 17) for a print medium and with - 2 009886/0099 Central bores (12, 13) for the implementation of the show feiend ·· or «a bracket (9) and that the Druckeyetera assigned · yoke (2) in the area of the oscillating pan (Ii) whose rounded area is adapted " 009886/0099 L e r s e i t e