An automatic test system for pressure bearing of conical hole type sealing ring

Abstract

The invention, which belongs to the technical field of bearing detection, specifically relates to an automatic testing system for pressure bearing of a conical bearing sealing ring. The automatic testing system is composed of an upper supporting plate, a lower supporting plate, a support frame, a moving module, a detection cover, a telescopic rod, a pressing block, a support block, a weight measuring tank, a gravity sensing plate, a hydraulic pressure gauge, a conveying module and a fixed rod. The upper supporting plate and the lower supporting plate have rectangular shapes and are connected by the support frame. The detection cover is arranged under the moving block; and the hydraulic pressure gauge and an inlet hole are arranged at the detection cover. The support block and the pressingblock cooperate with each other to fix a sealing ring; the fixed rod is connected below the support block; the weight measuring tank is arranged at the outer side of the fixed rod; and the conveying module is arranged at the left of the detection cover. The detection cover is connected to the bottoms of optical rods. When a motor drives a lead screw to rotate, the lead screw drives the detection cover to move up in a vertical direction by the bearing. Therefore, a measurement error caused by a human factor is avoided; automatic detection is realized; and the work efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of bearing detection, in particular to a pressure-bearing automatic testing system for a tapered hole sealing ring. Background technique [0002] At present, as the requirements for bearings of rolling mill equipment are getting higher and higher, the use of high-precision constant pressure sealed bearings is becoming more and more extensive. The high-precision 20-high rolling mill produced by Japan's Mitsubishi Corporation, the 12-high rolling mill produced by Beijing Steele Rowling and other companies, all require the bearings equipped with them to have a pressure of 7KPa to 9KPa due to the needs of the lubrication system of the equipment itself. Constant pressure sealing performance. However, the performance of domestic sealing materials is generally poor, and the pressure range required by this type of bearing is small, so for each set of bearing sealing rings, it is necessary to test the outer diameter...

AI Technical Summary

Problems solved by technology

However, the performance of domestic sealing materials is generally poor, and the pressure range required by this type of bearing is small, so for each set of bearing sealing rings, it is necessary to test the outer diameter of the sealing ring lip and the bearing raceway one by one in advance. However, due to the limitation of the bearing structure, the sealing ring cannot be disassembled after being installed on the bearing, so it is necessary to design the pressure measuring device to test and calculate the interference value under the constant pressure value in advance, so as to ensure that the bearing has 7KPa ~ 9KPa constant pressure performance, so that the bearing can prevent external impurities, cutting fluid, etc. from entering the interior, and ensure the lubrication pressure inside the rolling mill to prevent loss and pollution caused by the outflow of bearing lubricating oil

[0003] In the prior art, there are also some technical solutions of tapered hole bearing sealing ring pressure testing devices. For example, a Chinese patent with application number 201511018987.0 discloses a tapered hole sealing ring pressure testing device. Chamber wall, compression nut, bearing sealing ring, scale screw, push nut, spiral sleeve, tapered hole pressure chamber, sealing ring, pressure gauge and external pressure air pipe, the scale screw is set in the tapered hole pressure chamber, the scale The nut of the screw rod and the compression nut fix one end of the scale screw on the wall of the tapered hole pressure chamber, the bearing seal ring is installed on the other end of the scale screw, and the left and right ends of the bearing seal ring are respectively equipped with a spiral sleeve and a push nut. There is a seal ring between the screw and the wall of the cone-hole pressure chamber, and the external pressure air pipe and pressure gauge are installed on the wall of the cone-hole pressure chamber; although this technical solution can detect the pressure bearing condition of the seal ring, this technical solution only It is possible to carry out separate manual operation on the tapered hole seal ring, and the manual rotation of the nut is not easy to control, and the error caused by human factors during the detection is very large. At the same time, this scheme cannot realize automatic detection of the nut, and the work efficiency of this scheme is very low.

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