CN218364472U

CN218364472U - High-safety pulse valve limiting and quick replacing device

Info

Publication number: CN218364472U
Application number: CN202221819743.8U
Authority: CN
Inventors: 刘兵
Original assignee: Nanjing Iron and Steel Co Ltd
Current assignee: Nanjing Iron and Steel Co Ltd
Priority date: 2022-07-15
Filing date: 2022-07-15
Publication date: 2023-01-24
Anticipated expiration: 2032-07-15

Abstract

The utility model discloses a high-safety pulse valve limiting and quick replacing device, which comprises a cylinder (1) and a rotating shaft (2) which are connected, wherein one side of the cylinder (1) is connected with an inclined protective housing (3), the rotating shaft (2) extends into the protective housing (3) and is connected with an elongated shaft sleeve (4), the elongated shaft sleeve (4) is connected with a pair of mutually perpendicular limiting baffles (5), and the limiting baffles (5) are also arranged perpendicular to the axis of the elongated shaft sleeve (4); the upper surface (3 b) and the lower surface (3 b) of the protective housing (3) are respectively connected with a valve switch limit (6), the two valve switch limits (6) are oppositely arranged, and each valve switch limit (6) is right opposite to the limit baffle (5). The utility model has the advantages that reduce intensity of labour, improve limit switch's life, avoid spacing being baked by high temperature when guaranteeing heating furnace air pulse valve steady operation.

Description

High-safety pulse valve limiting and quick replacing device

Technical Field

The utility model belongs to the technical field of the metallurgical equipment, especially, relate to a spacing quick replacement device of pulse valve of high security.

Background

In the metallurgical industry, a hot rolling factory can heat steel billets, steel can be tapped and rolled after the steel billets are heated to a certain temperature, a stepping heating furnace for heating the steel billets needs to be divided into a heating section 1, a heating section 2 and a soaking section, 2 to 4 groups of burners are respectively installed on two sides of each section, and each group of burners is provided with a gas pulse valve and an air pulse valve. In order to reduce the energy consumption of the heating furnace, combustion-supporting air is heated to more than 400 ℃ by waste flue gas heat exchange, a valve switch is arranged between a pulse valve and a rotary cylinder in a limiting way, the limit switch is often damaged by baking, the temperature is high when the limit switch is replaced, hands are easily injured by a limiting rod on a shaft, the temperature at the edge of the furnace wall is high, and the working environment is severe.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the purpose is exactly in order to solve the problem that the spacing easy roast of current pulse valve is bad, the temperature is high, change inconvenience and security are low, provides the spacing quick replacement device of pulse valve of high security, can reduce intensity of labour, improves limit switch's life, can avoid spacing being baked by high temperature for a long time when guaranteeing heating furnace air pulse valve steady operation badly.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a high-safety pulse valve limiting and quick replacing device comprises a cylinder and a rotating shaft which are connected, wherein one side of the cylinder is connected with an inclined protective housing, the shaft end of the rotating shaft penetrates through the back surface of the protective housing and extends into the protective housing, the shaft end of the rotating shaft is connected with a lengthened shaft sleeve, a pair of limiting baffles which are vertical to each other are connected onto the lengthened shaft sleeve, and the limiting baffles are also vertical to the axis of the lengthened shaft sleeve;

the upper surface and the lower surface of the protective housing are respectively connected with a valve switch limit, the two valve switches are oppositely arranged in a limit way, and each valve switch limit is opposite to the limit baffle.

Furthermore, the protective cover casing is of a rectangular shell structure, the rotating shaft is perpendicular to the back face of the protective cover casing, and the valve switch is limited and perpendicular to the upper face and the lower face of the protective cover casing.

Further, the axis of the rotating shaft and the axis of the lengthened shaft sleeve are coincident with each other.

Furthermore, a front cover plate is connected to the front of the protective cover shell and is fixed to the protective cover shell through bolts, so that equipment in the protective cover shell can be maintained and observed conveniently.

Further, the axis of the valve switch limit is perpendicularly intersected with the axis of the lengthened shaft sleeve.

Furthermore, the valve switch is provided with an external thread in a limiting way, and the valve switch is tightly connected with the protective housing through the external thread so as to be convenient for the disassembly and assembly of the switch.

Further, the included angle alpha between the axis of the valve switch limit and the vertical direction is 60 degrees.

The technical scheme of the utility model among, through with protection casing and extension axle sleeve, make the spacing pulse valve and revolving cylinder of keeping away from as far as between, avoid the valve switch spacing by high temperature damage, utilize simultaneously to set up limit baffle on the extension axle sleeve and trigger the switch spacing, when the rotation axis is rotatory to certain angle, limit baffle just in time blocks the valve switch spacing to make spacing action, the device of the utility model is simple in structure, improved limit switch's life-span, effectively reduced electrical equipment maintainer intensity of labour, prevent to lead to maintainer hand injury because of working error, reduced equipment cost of maintenance simultaneously, guaranteed that heating furnace air pulse valve operates stably.

Drawings

Fig. 1 is an internal structure view of the high-safety pulse valve position-limiting quick-replacing device of the present invention;

fig. 2 is an outline view of the high-safety pulse valve position-limiting quick-replacing device of the present invention;

fig. 3 is a schematic side view of the pulse valve position-limiting quick-changing device of the present invention;

fig. 4 is a state diagram of the valve switch of the present invention during the limiting operation.

Detailed Description

Example 1

In order to make the present invention more clearly understood, the following description is made with reference to the accompanying drawings for further illustration of the high-safety pulse valve position-limiting quick replacement device of the present invention, and the specific embodiments described herein are only used for explaining the present invention, and are not used for limiting the present invention.

Referring to fig. 1 and 3, a high-safety pulse valve position-limiting quick-change device comprises a cylinder 1 and a rotating shaft 2 which are connected, and is characterized in that:

referring to fig. 1 and 2, an inclined protective cover 3 is connected to one side of a cylinder 1, the protective cover 3 is of a rectangular shell structure, a front cover plate 3c is connected to the front of the protective cover 3, and the front cover plate 3c is fixed to the protective cover 3 through bolts so as to facilitate maintenance and observation of equipment in the protective cover;

referring to fig. 1 and 3, the shaft end of the rotating shaft 2 vertically penetrates through the back surface 3a of the protective housing 3 and extends into the protective housing 3, and is connected with a lengthened shaft sleeve 4, and the axis of the rotating shaft 2 and the axis of the lengthened shaft sleeve 4 are coincident with each other;

the lengthened shaft sleeve 4 is connected with a pair of limiting baffles 5 which are vertical to each other, the limiting baffles 5 are also vertical to the axis of the lengthened shaft sleeve 4, and the axis connecting line of the two limiting baffles 5 is vertically crossed with the axis of the lengthened shaft sleeve 4;

the upper surface and the lower surface of the protective housing 3 are respectively connected with a valve switch limit 6, the two valve switch limits 6 are oppositely arranged, each valve switch limit 6 faces the limit baffle 5, and the axis of each valve switch limit 6 is also vertically intersected with the axis of the lengthened shaft sleeve 4.

In this embodiment, be equipped with external screw thread 6a on the valve switch is spacing 6, and it fastens continuously through external screw thread 6a and protective housing 3 to the dismouting of switch is convenient for.

The utility model discloses in, be close to one side of cylinder 1 and establish the back 3a of protection housing 3, keep away from one side of cylinder 1 and establish the front to protection housing 3.

Referring to fig. 4, in a normal state, the limit baffle 5 is horizontally placed, the axis of the valve switch limit 6 forms an included angle of 60 degrees with the vertical direction, when the cylinder 1 is in place and drives the rotating shaft 2 to rotate to a specific angle, the limit baffle 5 is arranged opposite to the valve switch limit 6, at this moment, the limit baffle 5 is in place, and the valve switch limit 6 acts.

The device of the utility model is simple in structure, convenient operation has avoided spacing direct clamp between pulse valve and revolving cylinder, has improved limit switch's life-span, has effectively reduced electrical equipment maintainer intensity of labour, prevents to lead to maintainer hand be injured because of the misoperation, has reduced equipment cost of maintenance simultaneously, has guaranteed that heating furnace air pulse valve operation is stable.

In addition to the above embodiments, the present invention may have other embodiments. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.

Claims

1. The utility model provides a spacing quick replacement device of pulse valve of high security, includes cylinder (1) and rotation axis (2) that link to each other, its characterized in that:

one side of the cylinder (1) is connected with an inclined protective cover shell (3), the shaft end of the rotating shaft (2) penetrates through the back surface (3 a) of the protective cover shell (3) and extends into the protective cover shell (3), the shaft end is connected with a lengthened shaft sleeve (4), a pair of mutually vertical limiting baffles (5) are connected onto the lengthened shaft sleeve (4), and the limiting baffles (5) are also arranged vertical to the axis of the lengthened shaft sleeve (4);

the upper surface (3 b) and the lower surface (3 b) of the protective housing (3) are respectively connected with a valve switch limit (6), the two valve switch limits (6) are oppositely arranged, and each valve switch limit (6) is right opposite to the limit baffle (5).

2. The high-safety pulse valve position-limiting quick-replacing device according to claim 1, characterized in that:

the protective housing (3) is of a rectangular shell structure, the rotating shaft (2) is perpendicular to the back face (3 a) of the protective housing (3), and the valve switch limit (6) is perpendicular to the upper face and the lower face of the protective housing (3).

3. The high-safety pulse valve position limiting quick replacing device according to claim 1 or 2, characterized in that:

the axis of the rotating shaft (2) is superposed with the axis of the lengthened shaft sleeve (4).

4. The high-safety pulse valve position limiting and quick replacing device as claimed in claim 1 or 2, wherein:

the front of the protective housing (3) is connected with a front cover plate (3 c), and the front cover plate (3 c) is fixed on the protective housing (3) through bolts.

5. The high-safety pulse valve position limiting quick replacing device according to claim 1 or 2, characterized in that:

the axis of the valve switch limit (6) is vertically intersected with the axis of the lengthened shaft sleeve (4).

6. The high-safety pulse valve position limiting quick replacing device according to claim 1 or 2, characterized in that:

be equipped with external screw thread (6 a) on valve switch spacing (6), and it links to each other with protective housing (3) fastening through external screw thread (6 a).

7. The high-safety pulse valve position limiting quick replacing device according to claim 1 or 2, characterized in that:

the included angle alpha between the axis of the valve switch limit (6) and the vertical direction is 60 degrees.