Lubricating device with automatic inflating and deflating structure and air chamber pressure oil tank

Abstract

The invention discloses a lubricating device with an automatic inflating and deflating structure and an air chamber pressure oil tank. An oil tank upper cavity A is communicated with a two-position and three-way valve which is also provided with an interface which is communicated with the atmosphere. By adopting the structure, an oil inlet mode can be changed; and oil can be fully fed into an oil inlet of a lubricating pump and the capability of pumping grease is greatly improved. The lubricating device with the automatic inflating and deflating structure and the air chamber pressure oil tank comprises a lubricating pump casing, a power assembly, a lubricating pump, a cylindrical oil tank, a piston, a sealing ring and an automatic controller, wherein the power assembly and the lubricating pump driven by the power assembly are arranged on the lubricating pump casing; the cylindrical oil tank is fixedly connected with the lubricating pump casing; the cylindrical oil tank is separated into the oil tank upper cavity A and an oil tank lower cavity B, which are mutually sealed, by the piston through the sealing ring; an oil inlet port C of the lubricating pump is communicated with the oil tank lower cavity B for storing the grease; the automatic controller is connected with an electric air pump and the power assembly through a line; the electric air pump is also arranged outside the cylindrical oil tank; the oil tank upper cavity A is a sealing air chamber and is connected with the two-position and three-way valve extending out of the upper part of the oil tank upper cavity A; and an exhaust port of the electric air pump passes through an interface of the two-position and three-way valve.

Description

technical field [0001] The invention belongs to the technical field of lubrication and relates to a lubrication device, in particular to a lubrication device with an automatic air filling and deflation structure and an air chamber pressure oil tank. Background technique [0002] At present, centralized grease lubrication technology has been widely used in our country. It can implement timing and quantitative automatic oil injection to each lubrication point when the mechanical equipment is running. This type of device overcomes the shortcomings of manual oiling. For example, LINCOLN series plunger pump devices, VOGEL series plunger pump devices, Ningbo Sanlang's KFP gear pump devices, etc. have been sold on the market. Most of these lubrication pump devices use cylindrical oil tanks, and the upper chamber of the oil tanks is directly connected to the atmosphere. In the same way, air pressure is equal to atmospheric pressure. These lubricating pump devices respectively adop...

AI Technical Summary

Problems solved by technology

However, for mechanical equipment that requires high-viscosity grease and normal operation in winter low-temperature environments or low-pressure environments, the pumping capacity of these current lubricating pump devices is difficult to meet

The reason is that the structure of the oil inlet of the various auxiliary lubricating pumps mentioned above has a limited effect, and the lubricating pump mainly relies on the limited vacuum suction generated by itself during operation to suck the lubricating grease. The oil inlet cannot effectively absorb a sufficient amount of grease or even evacuate it

At present, for most mechanical equipment that requires the use of high-viscosity grease and operates in a low-temperature environment or low-pressure environment in winter, it is either lubricated by a manual grease gun, or the use of low-viscosity grease is required to reduce friction pair lubrication, which will It will reduce the performance of the machine, affect the operation, and cause early damage to the machine

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