CN209943634U

CN209943634U - Oil injection and exhaust device of valve electric device

Info

Publication number: CN209943634U
Application number: CN201920535580.2U
Authority: CN
Inventors: 苗振海; 黎守英; 赵鹏; 刘兵; 张昕
Original assignee: TIANJIN BAILI ERTONG MACHINERY CO Ltd
Current assignee: TIANJIN BAILI ERTONG MACHINERY CO Ltd
Priority date: 2019-04-19
Filing date: 2019-04-19
Publication date: 2020-01-14
Anticipated expiration: 2029-04-19

Abstract

The utility model discloses a valve electric actuator's oiling exhaust apparatus, including box, sealed pad A, scale window seat, scale window, one-way discharge valve and oiling valve. The utility model discloses an actively the effect: the oil level can be monitored in real time through the scale window, so that transmission parts such as a worm gear pair and a gear pair in the electric device are always in an oil bath, and the transmission performance of the electric device is ensured. When the lubricating oil level is low, direct oiling of accessible oiling valve need not dismantle any spare part, convenient and fast. In addition, when the internal pressure of the electric device is overlarge, the pressure can be relieved through the one-way exhaust valve, and the phenomenon of oil leakage caused by the failure of the internal seal of the electric device is prevented.

Description

Oil injection and exhaust device of valve electric device

Technical Field

The utility model relates to a valve electric actuator technical field, especially a valve electric actuator's oiling exhaust apparatus.

Background

The valve electric device is an electromechanical device for driving a valve to open and close by electric power, and the mechanical transmission part mainly comprises a gear pair and a worm gear pair. The mechanical transmission pairs need enough lubricating oil for lubrication in the meshing process, so that the service life, the transmission performance and the transmission efficiency of the mechanical transmission pairs can be ensured. Therefore, lubrication of the valve electric actuator is very critical. The utility model discloses just ensure valve electric actuator lubricating oil mass and prevent an oiling exhaust apparatus of seepage.

In the prior art, the structure of an oil filling part of a valve electric device is shown in figure 1. It can be seen from the figure that the oil plug 2 is in threaded fit with the oil injection threaded hole of the box body 1, the oil plug 2 is screwed down, and the sealing with the box body 1 is ensured through the rubber gasket 3. When oil is needed to be injected, the oil plug 2 is screwed off; and after oil injection is finished, screwing the oil plug 2.

The electric device of the valve with the structure has the following technical defects:

1. the inside worm gear pair of valve electric actuator and gear pair need oil bath lubrication just can guarantee normal transmission and life, and this structure is too simple, can not monitor the inside lubricating oil liquid level height of valve electric actuator box, has the lubricating oil level to hang down the danger that leads to valve electric actuator can not normal operation and life-span reduction excessively.

2. The structure has the problem of inconvenient oiling. When oil is filled, the oil plug needs to be screwed off, and the sealing failure can be caused in the dismounting process.

3. This structure has a disadvantage that automatic exhaust is not possible. That is, in a high temperature environment, the pressure inside the mechanical cavity of the valve electric device rises, and when a certain pressure is reached, the sealing inside the mechanical cavity fails, resulting in oil leakage of the valve electric device.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a valve electric actuator's oiling exhaust apparatus, it has solved the technical difficulty that exists among the well-known art, adopts one-way discharge valve, oiling valve and the integrative device of scale window, and accessible scale window real-time supervision oil level when the lubricating oil level is on the low side, the direct oiling of accessible oiling valve, convenient and fast, when electric actuator internal pressure was too big, accessible one-way discharge valve carried out the pressure release.

The technical scheme of the utility model: the utility model provides a valve electric actuator's oiling exhaust apparatus, includes the box, its characterized in that still includes sealed pad A, scale window seat, scale window, one-way discharge valve and oiling valve, sealed pad A plane cooperation is at the box faying face, the scale window passes through plane, tang face and sealed pad A cooperation to the box on to through the screw-up, the scale window passes through the cooperation plane department that cushion B plane cooperation was to scale window seat, and through the screw-up, one-way discharge valve passes through threaded connection and fixes on scale window seat, the oiling valve passes through threaded connection and fixes on scale window seat.

The utility model discloses an actively the effect: the oil level can be monitored in real time through the scale window, so that transmission parts such as a worm gear pair and a gear pair in the electric device are always in an oil bath, and the transmission performance of the electric device is ensured. When the lubricating oil level is low, direct oiling of accessible oiling valve need not dismantle any spare part, convenient and fast. In addition, when the internal pressure of the electric device is overlarge, the pressure can be relieved through the one-way exhaust valve, and the phenomenon of oil leakage caused by the failure of the internal seal of the electric device is prevented.

Drawings

Fig. 1 is a schematic view of an oiling structure in the prior art.

Fig. 2 is the structure diagram of the oil injection and exhaust device of the valve electric device of the present invention.

Fig. 3 is a view from direction a of fig. 2.

Wherein, 1 is the box, 2 is oil stifled, 3 cushions, 4 are sealed pad A, 5 are scale window seats, 6 are the scale window, 7 are one-way discharge valve, 8 are the oiling valve, 9 are sealed pad B.

Detailed Description

Example (b): the utility model provides a valve electric actuator's oiling exhaust apparatus (see fig. 2, 3), includes box 1, its characterized in that still includes sealed A4, scale window seat 5, scale window 6, one-way discharge valve 7 and oiling valve 8, sealed A4 plane cooperation of pad is at the 1 faying face of box, scale window seat 5 passes through plane, tang face and sealed A4 cooperation to box 1 to through the screw-up, scale window 6 passes through cushion B9 plane cooperation to the cooperation plane department of scale window seat 5, and through the screw-up, one-way discharge valve 7 passes through threaded connection and fixes on scale window seat 5, oiling valve 8 passes through threaded connection and fixes on scale window seat 5.

Claims

1. The utility model provides a valve electric actuator's oiling exhaust apparatus, includes the box, its characterized in that still includes sealed pad A, scale window seat, scale window, one-way discharge valve and oiling valve, sealed pad A plane cooperation is at the box faying face, the scale window passes through plane, tang face and sealed pad A cooperation to the box on to through the screw-up, the scale window passes through the cooperation plane department that cushion B plane cooperation was to scale window seat, and through the screw-up, one-way discharge valve passes through threaded connection and fixes on scale window seat, the oiling valve passes through threaded connection and fixes on scale window seat.