CN-224215115-U - Automatic protector for lubricating thin oil and cutting off oil of bearing

CN224215115UCN 224215115 UCN224215115 UCN 224215115UCN-224215115-U

Abstract

The utility model belongs to the technical field of mining rotary drill equipment, in particular to an automatic protection device for lubricating and cutting off thin oil of a bearing, which is characterized by comprising a valve body, an internal thread I arranged on the inner wall of an oil inlet of the valve body, a pressure sensor arranged at the oil inlet, the ejector pin is arranged in the valve body, the pressure spring is connected with the ejector pin, the spring compression adjusting nut is connected with the pressure spring, and the spring compression adjusting nut is in threaded connection with the internal thread II arranged on the inner wall of the oil outlet of the valve body. The utility model can be implemented on the basis of not changing the original structure of the equipment, is simple and quick, is convenient to implement and popularize, has obvious effect and low input cost, can better ensure the lubrication accuracy of the bearing of the screw air compressor, and provides powerful correction for the whole-service-life stable operation of the bearing of the air compressor.

Inventors

ZHENG GUANGJIN
ZHOU LIFENG
XU GUANGMING
SHU DONGLIN
LI QINGJUN
JIN LIXIN

Assignees

鞍钢集团鞍千矿业有限责任公司

Dates

Publication Date: 20260508
Application Date: 20250603

Claims (3)

1. The automatic protection device for lubricating and cutting off the oil of the thin oil of the bearing is characterized by comprising a valve body, an internal thread I arranged on the inner wall of an oil inlet of the valve body, a pressure sensor arranged at the oil inlet, a thimble arranged in the valve body, a pressure spring connected with the thimble, a spring compression adjusting nut connected with the pressure spring, and an internal thread II in threaded connection with the internal thread II arranged on the inner wall of an oil outlet of the valve body.
2. The automatic protection device for lubricating and cutting off oil of thin oil of a bearing according to claim 1, wherein the pressure sensor is connected with a control module in a signal mode, and the control module is connected with an audible and visual alarm and is connected with an air compressor starting control system.
3. The automatic protection device for lubricating and cutting off thin oil of a bearing according to claim 1, wherein the oil inlet end of the oil outlet cavity of the valve body is provided with a conical table which is matched with the conical surface of the thimble.

Description

Automatic protector for lubricating thin oil and cutting off oil of bearing Technical Field The utility model belongs to the technical field of mining rotary drill equipment, and particularly relates to an automatic protection device for lubricating thin oil and cutting off oil of a bearing. Background At present, YZ35 series rotary drills are widely applied in the large mining production process, an air compressor is a main component of the rotary drills to provide working air for perforating operation of the rotary drills, a main air compressor of the rotary drills is a screw air compressor, a head bearing of the rotary drills adopts a thin oil lubrication mode, sufficient lubrication of the air compressor is required to be ensured before and during production operation, lubrication lag or deficiency phenomenon is caused due to the fact that lubrication system defects such as oil injection of a safety valve and oil leakage of a circulating oil pipe frequently occur in the actual operation process, the lubrication oil quantity of the bearings of the air compressor is insufficient, meanwhile, a driver cannot find in time when operating the rotary drills in an operation room, and causes fault shutdown of the rotary drills, accelerated abrasion and direct burning fault of the bearings of the air compressor, and main machine rejection of the air compressor even fire disaster occur. Because the existing pressure sensor can not detect a tiny pressure value and can not monitor bearing lubrication oil-break information, the problem of bearing lubrication oil-break detection of a main air compressor of a drilling machine is very important. Disclosure of Invention The utility model aims to provide an automatic protection device for lubricating and cutting off oil of thin oil of a bearing, which realizes the visualization of forced lubrication of the outer part of a head bearing of a screw air compressor through an alarm function, automatically stops the occurrence of bearing faults caused by lubrication problems through interlocking protection, realizes the aim of maximizing the service life of the head bearing, avoids equipment faults caused by lack of lubricating oil, saves equipment cost and improves production operation efficiency. The aim of the utility model is realized by the following technical scheme: The utility model relates to an automatic protection device for lubricating thin oil and cutting off the oil of a bearing, which is characterized by comprising a valve body, an internal thread I arranged on the inner wall of an oil inlet of the valve body, a pressure sensor arranged at the oil inlet, a thimble arranged in the valve body, a pressure spring connected with the thimble, a spring compression adjusting nut connected with the pressure spring, and an internal thread II in threaded connection with the internal thread II arranged on the inner wall of an oil outlet of the valve body. The pressure sensor signal is connected to a control module, and the control module is connected with an audible and visual alarm and is connected with an air compressor starting control system. And the oil inlet end of the oil outlet cavity of the valve body is provided with a conical table which is matched with the conical surface of the thimble. The utility model has the advantages that: The automatic protection device for lubricating the thin oil of the bearing can be implemented on the basis of not changing the original structure of equipment, is simple and quick, is convenient to implement and popularize, has obvious effect and low input cost, can better ensure the lubricating accuracy of the bearing of the screw air compressor, and provides powerful protection for the whole-service-life stable operation of the bearing of the air compressor. Drawings Fig. 1 is a schematic structural view of the present utility model. Detailed Description Specific embodiments of the present utility model are further described below with reference to the accompanying drawings. As shown in fig. 1, the automatic protection device for lubricating and cutting off the oil of the thin oil of the bearing is characterized by comprising a valve body 1, an internal thread I3 arranged on the inner wall of an oil inlet 2 of the valve body 1, a pressure sensor 7 arranged at the oil inlet 2, a thimble 4 arranged in the valve body 1, a pressure spring 5 connected with the thimble 4, a spring compression adjusting nut 8 connected with the pressure spring 5, and the spring compression adjusting nut 8 is in threaded connection with an internal thread II6 arranged on the inner wall of an oil outlet of the valve body 1. The pressure sensor 7 is connected with a control module through a signal, and the control module is connected with an audible and visual alarm and is connected with an air compressor starting control system. The oil inlet end of the oil outlet cavity of the valve body 1 is provided with a conical table which is matched with the conical surf