CN212985970U

CN212985970U - Sealing device for tilting speed reducer of converter

Info

Publication number: CN212985970U
Application number: CN202021331284.XU
Authority: CN
Inventors: 王国勇; 李培政; 饶斌; 毛勇
Original assignee: Dazhou Iron and Steel Group Co Ltd
Current assignee: Dazhou Iron and Steel Group Co Ltd
Priority date: 2020-07-08
Filing date: 2020-07-08
Publication date: 2021-04-16
Anticipated expiration: 2030-07-08

Abstract

The utility model relates to a metallurgical machinery corollary equipment technical field discloses a sealing device for converter tilting speed reducer, including the jet-propelled pipe that is located speed reducer pivot and end cover contained angle position, the jet-propelled pipe is the bend arc and encircles in the pivot outside, and the pipe wall in gap is equipped with a plurality of fumaroles between jet-propelled pipe orientation pivot and the end cover, and one side that the fumaroles was kept away from to the jet-propelled pipe is equipped with a plurality of mounting brackets, and the rigid coupling can be dismantled with the end cover to each mounting bracket, and the at least one end of jet-propelled pipe is linked together through bending tube and gas transmission branch pipe, and. The positive pressure gas enters the gas injection pipe through the gas supply main pipe, the gas transmission branch pipe and the bent pipe, and is sprayed out from the gas injection pipe to irradiate a gap between the end cover and the shaft neck of the rotating shaft, so that the effect of preventing lubricating oil from leaking can be realized in a local positive pressure gas sealing area, the working strength of maintenance personnel can be reduced, the potential safety hazard caused by oil leakage can be avoided, and the gas injection device has great popularization value and wide application prospect.

Description

Sealing device for tilting speed reducer of converter

Technical Field

The utility model relates to a metallurgical machinery corollary equipment technical field, concretely relates to a sealing device for converter tilting speed reducer.

Background

In the metallurgical industry, due to the restriction of production environment, dust, vibration, oil leakage and the like are common problems of metallurgical machinery, great influence is brought to production activities, and the oil leakage is a long-standing problem.

Converter tilting speed reducer among the metallurgical machinery, there is 1 ~ 2mm in the clearance between end cover and the pivot axle journal, because reasons such as vibration, inside lubricating oil can leak along the gap outward, converter tilting speed reducer is bulky, the quality is heavy, spatial position limitation is big, moreover the installation is dismantled consuming time very long, maintenance when the production rhythm is faster overhauls and has the difficulty, in addition the oil leakage still causes the waste of resource, adds maintenance personnel working strength, and still there are potential safety hazards such as conflagration, slide.

Therefore, a sealing device for a converter tilting secondary speed reducer, which has small volume and simple structure, can effectively realize sealing and prevent oil leakage, is urgently needed in the technical field of metallurgical machinery corollary equipment.

Disclosure of Invention

The utility model overcomes prior art's defect provides a small in size, structure retrench and can effectively realize sealed, prevent the sealing device that is used for converter tilting secondary speed reducer of oil leak.

The utility model discloses a following technical scheme realizes:

the utility model provides a sealing device for converter speed reducer that fascinates, is including the jet-propelled pipe that is located speed reducer pivot and end cover contained angle position, the jet-propelled pipe is the bend arc and encircles in the pivot outside, the jet-propelled pipe is equipped with a plurality of fumaroles towards the pipe wall in gap between pivot and the end cover, one side that the fumarole was kept away from to the jet-propelled pipe is equipped with a plurality of mounting brackets, each the rigid coupling can be dismantled with the end cover to the mounting bracket, the at least one end of jet-propelled pipe is linked together through buckling pipe and gas transmission branch pipe, gas transmission branch.

Furthermore, the central angle range corresponding to the arc where the gas injection pipe is located is 90-180 degrees.

Further, the central angle corresponding to the arc where the gas injection pipe is located is 120 degrees.

Furthermore, the plurality of the gas injection holes are distributed in a single row along the length direction of the gas injection pipe.

Further, the distance between the adjacent gas injection holes close to the middle part of the gas injection pipe is smaller than the distance between the adjacent gas injection holes close to the two ends of the gas injection pipe.

Furthermore, the axis of the air injection hole is collinear with the angle bisector of the included angle between the end surface of the end cover and the side surface of the rotating shaft.

Furthermore, a joint is arranged between the bent pipe and the gas transmission branch pipe.

Furthermore, bent pipes are arranged at two ends of the air injection pipe, and the bent pipes at two ends of the air injection pipe are correspondingly communicated with two ends of the air delivery branch pipe respectively.

Furthermore, an air source triple piece is arranged on the air supply main pipe.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

the clearance between end cover and the pivot axle journal of converter tilting speed reducer has 1 ~ 2mm, because reasons such as vibration, inside lubricating oil can leak along the gap is outer, it sets up curved arc jet-propelled pipe to encircle the pivot in oil leak position, set up the fumarole on the pipe wall on the jet-propelled pipe, malleation gas is through supplying gas house steward, the gas transmission branch pipe, the pipe of buckling gets into in the jet-propelled pipe, from the jet-propelled pipe clearance between directive end cover and the pivot axle journal again, can form the effect that malleation gas seal region realized preventing lubricating oil to spill at the part, can alleviate maintenance personal's working strength, can also avoid the potential safety hazard because of the oil leak leads to, very big spreading value and wide application prospect have.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

fig. 1 is a schematic front view of the position relationship between the sealing device and the tilting speed reducer of the present invention;

FIG. 2 is an enlarged view of the point A of FIG. 1 according to the present invention;

fig. 3 is a right schematic view of the sealing device and the tilting speed reducer according to the present invention;

fig. 4 is an enlarged view of fig. 3B according to the present invention;

FIG. 5 is a front view of the gas lance of the present invention;

fig. 6 is an enlarged view of fig. 5 at C according to the present invention;

fig. 7 is a schematic diagram of the position relationship between the air injection hole and the gap between the rotating shaft and the end cover.

Reference numbers and corresponding part names in the drawings:

1-gas injection pipe, 11-gas injection hole, 2-mounting rack, 3-bending pipe, 4-gas transmission branch pipe, 5-joint, 6-gas transmission main pipe, 7-gas source triple piece, 8-end cover and 9-rotating shaft.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.

The utility model provides a sealing device for converter tilting speed reducer, including the jet-propelled pipe 1 that is located 8 contained angle positions of speed reducer pivot 9 and end cover, jet-propelled pipe 1 is the bend arc and encircles in the pivot 9 outside, jet-propelled pipe 1 is equipped with a plurality of fumaroles 11 towards the pipe wall in gap between pivot 9 and the end cover 8, one side that jet-propelled pipe 1 kept away from fumarole 11 is equipped with a plurality of mounting brackets 2, each mounting bracket 2 can dismantle the rigid coupling with end cover 8, at least one end of jet-propelled pipe 1 is linked together through buckling pipe 3 and gas transmission branch pipe 4, gas transmission branch pipe 4 and gas supply header 6 intercommunication.

It can be understood, there is 1 ~ 2mm in the clearance between end cover 8 and the 9 journals of pivot, because reasons such as vibration, inside lubricating oil can leak along the gap is outer, encircle pivot 9 at the oil leak position and set up curved gas ejector pipe 1, set up fumarole 11 on the pipe wall on the gas ejector pipe 1, malleation gas is through air supply header pipe 6, gas transmission branch pipe 4, bend 3 entering gas ejector pipe 1 of pipe, again from the gas ejector pipe 1 blowout gap between 8 and the 9 journals of pivot directive end cover, can form the effect that the gaseous sealed region of malleation realizes preventing lubricating oil to spill in the part, can alleviate maintenance personal's working strength, can also avoid the potential safety hazard because of the oil leak leads to. The positive pressure gas is generally nitrogen, and may be other inert gas, as long as a positive pressure atmosphere can be formed at the oil leakage position to achieve the plugging effect.

Furthermore, the central angle range corresponding to the arc where the gas injection pipe 1 is located is 90-180 degrees. Furthermore, the gas lance 1 is located in an arc corresponding to a central angle of 120 °. It can be understood that, due to the influence of gravity, the range of oil leakage is generally concentrated at the lower part of the shaft neck of the rotating shaft 9, so the length of the gas lance 1 is set to be 1/4-1/2 of the circumference, namely, the corresponding central angle is 90-180 degrees, considering that the economy and the sealing effect are considered and the installation and the disassembly are convenient, the optimal length of the gas lance 1 is set to be 1/3 circumferences, namely, the corresponding central angle is 120 degrees.

Furthermore, the plurality of gas injection holes 11 are distributed in a single row along the length direction of the gas injection pipe 1. Furthermore, the distance between adjacent gas injection holes 11 near the middle of the gas lance 1 is smaller than the distance between adjacent gas injection holes 11 near the two ends of the gas lance 1. Furthermore, the axes of the air injection holes 11 are collinear with the angle bisector of the included angle between the end surface of the end cover 8 and the side surface of the rotating shaft 9. It can be understood that the single-row arrangement of the gas injection holes 11 can enable all the holes to face the oil leakage gap; the distance between the adjacent gas injection holes 11 close to the middle part of the gas injection pipe 1 is smaller than the distance between the adjacent gas injection holes 11 close to the two ends of the gas injection pipe 1, namely, the hole distance of the middle part is small, the hole distance of the two ends is large, namely, the middle part is dense, the two ends are sparse, and therefore, higher sealing pressure can be provided for the bottom of the rotating shaft 9 with more gathered leaked oil; the axis of fumarole 11 and the angular bisector collineation of 8 terminal surfaces of end cover and the 9 side contained angles of pivot, also the jet-propelled direction of fumarole 11 is just to the middle part of leaking the oil gap, and in practical application, if the 9 axis of pivot is the horizontally, 8 terminal surfaces of end cover are vertical, and the axis that is exactly fumarole 11 is 45 with the contained angle of vertical direction, can provide more accurate shutoff sealing effect like this.

Furthermore, a joint 5 is arranged between the bent pipe 3 and the gas transmission branch pipe 4. It can be understood that the arrangement of the joint can ensure that the positive pressure gas can pass through the reducing position more smoothly, and can also avoid the damage of the bent pipe 3 and the gas transmission branch pipe 4 caused by overlarge concentrated stress at the moment, and the joint can be directly replaced, so that the interchangeability is good and the cost is low.

Furthermore, both ends of the gas injection pipe 1 are provided with bent pipes 3, and the bent pipes 3 at both ends of the gas injection pipe 1 are correspondingly communicated with both ends of the gas transmission branch pipe 4 respectively. It can be understood that the gas ejector 1 is connected to the bent pipe 3 at both ends and communicated with the gas delivery branch pipe 4, so that the gas pressure of the whole gas ejector 1 can be more balanced. In addition, the bent pipe 3 may be a metal hose having a certain flexibility, or may be a rigid bent pipe which is customized according to a positional relationship and does not interfere with other parts of the speed reducer.

Further, an air supply triple piece 7 is arranged on the air supply main pipe 6. It can be understood that the air supply triple piece 7 is arranged on the air supply main pipe 6, the air supply triple piece 7 filters water in the positive pressure gas, so that the oil emulsification phenomenon does not occur when the gas entering the sealing surface of the bearing box contacts with the lubricating oil, and obviously, the air supply main pipe 6 is connected with an air supply.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

It is to be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention, and are not intended to indicate or imply that the claimed components or mechanisms must be in a particular orientation, constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only an embodiment of the present invention, and should not be used to limit the protection scope of the present invention, any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a sealing device for converter speed reducer that fascinates, a serial communication port, including jet-propelled pipe (1) that is located speed reducer pivot (9) and end cover (8) contained angle position, jet-propelled pipe (1) is curved arc and encircles in pivot (9) outside, jet-propelled pipe (1) is equipped with a plurality of fumaroles (11) towards the pipe wall in gap between pivot (9) and end cover (8), one side that jet-propelled pipe (1) kept away from fumarole (11) is equipped with a plurality of mounting brackets (2), each mounting bracket (2) can dismantle the rigid coupling with end cover (8), the at least one end of jet-propelled pipe (1) is linked together through buckling pipe (3) and gas transmission branch pipe (4), gas transmission branch pipe (4) and gas supply main (6) intercommunication.

2. The sealing device for the converter tilting reducer according to claim 1, wherein the central angle range corresponding to the arc where the gas lance (1) is located is 90-180 °.

3. The sealing device for the converter tilting reducer according to claim 2, wherein the central angle corresponding to the arc of the gas lance (1) is 120 °.

4. The sealing device for the converter tilting speed reducer according to claim 1, wherein the plurality of gas injection holes (11) are distributed in a single row along the length direction of the gas injection pipe (1).

5. A sealing device for a converter tilting reducer according to claim 4, characterized in that the distance between adjacent gas injection holes (11) near the middle of the gas injection pipe (1) is smaller than the distance between adjacent gas injection holes (11) near the two ends of the gas injection pipe (1).

6. The sealing device for the converter tilting speed reducer according to claim 4, wherein the axis of the gas injection hole (11) is collinear with the angle bisector of the included angle between the end face of the end cover (8) and the side face of the rotating shaft (9).

7. A sealing device for a converter tilting reducer according to claim 1, characterised in that a joint (5) is provided between the bending tube (3) and the gas branch tube (4).

8. The sealing device for the converter tilting speed reducer according to claim 1, wherein the bent pipes (3) are arranged at both ends of the gas injection pipe (1), and the bent pipes (3) at both ends of the gas injection pipe (1) are respectively and correspondingly communicated with both ends of the gas transmission branch pipe (4).

9. The sealing device for the converter tilting reducer according to claim 1, characterized in that an air supply triplet (7) is arranged on the air supply main pipe (6).