TR-11 building machines: screw pair treatment cut power consumption

Drive no-load current fell, power consumed per work cycle dropped on all four machines. TR-11 tyre building machines, Rosava JSC. Ukraine · 2005.

Rosava JSC, tyre building shop · approved by chief mechanical engineer V. A. Shepelev; measurements by deputy chief mechanical engineer V. V. Bogdashev and preventive maintenance foreman Ye. V. Podgorny together with XADO LLC specialists

Ukraine · treatment cycle 06.05–07.07.2005 · report approved 12.07.2005

PRODUCTXADO revitalizantstreatment of the support unit screw pairs without disassembling the machine

TREATED OBJECTTR-11 tyre building machinesfour machines of the building shop: No. 1, No. 2, No. 14, No. 18 · «screw — nuts» friction pair, DC drive

DOCUMENT TYPEReport of Rosava JSC
bearing the «Approved» stamp

Key results

↓42.6-59.7%

power consumed per machine work cycle, 1.566-3.098 → 0.853-1.649 kW

↓26.5-37.0%

no-load current with the plate travelling forward, 4.8-7.3 → 3.5-4.6 A

MACHINE	CONDITION AT THE START OF THE TESTS	OPERATING TIME BEFORE RE-MEASUREMENT
TR-11 No. 1	In service, axial play 0.41 mm	535 h
TR-11 No. 2	In service, axial play 0.6 mm	572 h
TR-11 No. 14	After overhaul on 05.04.2005	548 h
TR-11 No. 18	After overhaul on 03.05.2005	476 h

Power consumed per machine work cycle

MACHINE	BEFORE TREATMENT, kW	AFTER TREATMENT, kW	CHANGE
TR-11 No. 1	1.566	0.899	−42.6 %
TR-11 No. 2	3.098	1.649	−46.8 %
TR-11 No. 14	1.714	0.853	−50.2 %
TR-11 No. 18	3.026	1.218	−59.7 %

The sum of the no-load powers for forward and reverse plate travel, calculated from the measured current and voltage.

Drive no-load current and voltage

MACHINE	CURRENT FORWARD, A	CURRENT REVERSE, A	VOLTAGE FORWARD, V	VOLTAGE REVERSE, V
TR-11 No. 1	4.8 → 3.5	5.8 → 3.8	167 → 117	132 → 129
TR-11 No. 2	7.3 → 4.6	6.3 → 5.3	213 → 172	245 → 162
TR-11 No. 14	4.9 → 3.6	4.9 → 4.3	175 → 113	175 → 104
TR-11 No. 18	7.0 → 4.6	6.8 → 4.9	213 → 119	226 → 137

Measured with an ATK 2200 digital instrument on an unloaded plate; the machine drive is a DC motor.

Commission conclusions

The commission of Rosava JSC, with XADO specialists taking part, recorded: «As a result of the treatment of the screw pairs of the right-hand group support unit of TR-11 tyre building machines with XADO compounds, the power consumed per machine work cycle fell to 0.853 kW–1.649 kW. In one hour of machine operation about 20 work cycles are performed». The reduction was obtained on all four machines of the shop, including the two overhauled shortly before the treatment, and holds after 476-572 h of operation — that is, it is not a one-off running-in effect but the state of the drive in service. The commission separately defined the scope of the technology: XADO compounds act on the «screw — nuts» friction pair running in oil that contains the compound and do not change the condition of the other joints of the support unit — from the screw pair to the plate seats.

The results apply to the TR-11 tyre building machines of Rosava JSC and to the screw pairs of the right-hand group support unit; on other machines and assemblies the figures may differ. The original report of 12.07.2005 is published in full and available for download. The measurements were carried out jointly by specialists of Rosava JSC and XADO LLC.

Current equivalent

XADO “Restorative” greaseFriction pairs · joints
Revitalizant gel for compressors and bearingsCompressors · bearings · spindles

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