CN210564680U

CN210564680U - Cylinder body wears jar and uses fixing device, bearing box and steam turbine

Info

Publication number: CN210564680U
Application number: CN201921519844.1U
Authority: CN
Inventors: 张国刚; 杨长庆; 韩丽
Original assignee: Datang Huangdao Power Generation Co ltd
Current assignee: Datang Huangdao Power Generation Co ltd
Priority date: 2019-09-11
Filing date: 2019-09-11
Publication date: 2020-05-19
Anticipated expiration: 2029-09-11

Abstract

The invention provides a fixing device for cylinder body cylinder penetration, which comprises a stud with a through hole and a fastening nut, wherein a taper screw thread is arranged on one side of the stud connected with a cylinder penetration hole and used for fixing the stud at the cylinder penetration hole of a cylinder body; the other side of the stud is provided with a common thread matched with the fastening nut, the aperture of the through hole on the side, far away from the cylinder hole, in the stud is gradually increased, and the lead penetrates through the cylinder through the through hole of the stud and penetrates out through the axial through hole of the fastening nut; sealing materials are arranged on the conducting wires in the area with the gradually enlarged aperture, and all gaps in the through holes of the studs are filled with the sealing materials through extrusion between the fastening nuts and the studs; the cylinder body is worn jar and is used fixing device can be fine sealed cylinder hole of wearing to effectual oil leak phenomenon of having avoided takes place.

Description

Cylinder body wears jar and uses fixing device, bearing box and steam turbine

Technical Field

The utility model relates to a steam turbine technical field, in particular to cylinder body wears jar and uses fixing device, bearing box and steam turbine.

Background

The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

In order to monitor the operating parameters of the steam turbine, a temperature or TSI measuring point needs to be additionally arranged in a steam turbine bearing box, a leading-out wire of the measuring point needs to extend to a terminal box through a cylinder hole, and the steam turbine bearing box contains an oil pipeline, a bearing, a mechanical component, an electrical element for measuring the normal operation of the bearing and lubricating oil for keeping the lubricating effect. During normal operation, the bearing keeps high-speed operation, and near lubricating oil of bearing can move with very high angular velocity in the box, and the through wires hole that is located the cylinder under the bearing box will receive lubricating oil and strike normal operation, and the bearing keeps high-speed operation, and near lubricating oil of bearing can move with very high angular velocity in the box, and the through wires hole that is located the cylinder under the bearing box will receive lubricating oil and strike.

The inventors of the present disclosure found that although the threading holes are coated with the planar sealant, there is a possibility that the lubricant leakage may occur at the threading holes because the apparatus is operated all the time.

SUMMERY OF THE UTILITY MODEL

In order to solve prior art's not enough, this disclosure provides a cylinder body wears jar and uses fixing device, bearing box and steam turbine, and the sealed cylinder hole that wears that can be fine to the effectual oil leak phenomenon of having avoided takes place.

In order to achieve the purpose, the following technical scheme is adopted in the disclosure:

in a first aspect, the present disclosure provides a cylinder penetrating fixing device for a cylinder body;

a cylinder body is provided with a cylinder through hole and comprises a stud with a through hole and a fastening nut, wherein one side of the stud, which is connected with the cylinder through hole, is provided with a taper screw thread and is used for fixing the stud at the cylinder through hole of the cylinder body; the other side of the stud is provided with a common thread matched with the fastening nut, the aperture of the through hole on the side, far away from the cylinder hole, in the stud is gradually increased, and the lead penetrates through the cylinder through the through hole of the stud and penetrates out through the axial through hole of the fastening nut; and sealing materials are arranged on the conducting wires in the area with the gradually enlarged hole diameter, and all gaps in the through holes of the studs are filled with the sealing materials through extrusion between the fastening nuts and the studs.

As some possible realization modes, the through hole on one side of the stud close to the cylinder hole is a round hole with the diameter of 8 mm.

As a further limitation, the through hole on one side, far away from the cylinder hole, in the stud is a conical hole with the diameter gradually increasing towards the end, far away from the cylinder hole, of the stud.

As a further limitation, the sealing material is a raw material tape, the raw material tape is wound on the lead in the tapered hole, and the corresponding lead section after winding the raw material tape is in a tapered structure matched with the tapered hole and has a volume larger than that of the tapered hole.

As a further limitation, the raw material tape is further extended and wound on the conducting wire outside the conical hole.

As some possible realization modes, an axial through hole is formed in the center of the end part of the fastening nut and used for leading out a lead.

As a further limitation, the axial through bore is disposed opposite the through bore of the stud.

As some possible realization modes, the area of the inner side end face of the fastening nut is larger than the area of the end face of one end of the stud far away from the cylinder hole.

In a second aspect, the present disclosure provides a bearing box, including the fixing device for cylinder block cylinder penetration according to the present disclosure.

In a third aspect, the present disclosure provides a steam turbine, including the fixing device for cylinder penetration of the cylinder body of the present disclosure.

In a fourth aspect, the present disclosure provides a steam turbine comprising a bearing housing according to the present disclosure.

Compared with the prior art, the beneficial effect of this disclosure is:

1. according to the sealing device, the enough raw material belt is wound on the leading-out wire, the fastening nut extrudes the raw material belt through the end face of the fastening nut in the fastening process, the raw material belt has good elasticity and plasticity, and the raw material belt is filled with the conical round holes after being extruded, so that the sealing purpose is achieved, and oil leakage can be effectively prevented.

2. The wire after the raw material belt is wound is slightly larger than the conical round hole of the threaded screw hole, and all gaps in the threaded screw hole are filled with the raw material belt through extrusion between the fastening nut and the threaded screw hole, so that better sealing is realized.

3. The fastening nut end face is slightly larger than the threaded hole end face, and the thread seal tape also extends and winds on a lead outside the tapered hole, so that better sealing can be achieved in the fastening process.

Drawings

Fig. 1 is a schematic structural view of a fixing device for cylinder penetration in a cylinder block according to embodiment 1 of the present disclosure.

1-a wire; 2-a stud; 3-fastening a nut; 4-taper thread; 5-common thread; 6-raw material belt; 7-the end surface of one end of the stud, which is far away from the cylinder hole; 8-fastening the inner end surface of the nut; and 9, fastening nuts.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Example 1:

as shown in fig. 1, an embodiment 1 of the present disclosure provides a fixing device for cylinder penetration of a cylinder body, where the cylinder body is provided with a cylinder penetration hole, and includes a stud 2 with a through hole and a fastening nut 3, and one side of the stud 2 connected with the cylinder penetration hole is a conical screw thread 4 for fixing the stud 2 at the cylinder penetration hole; the other side of the stud 1 is provided with a common thread 5 matched with the fastening nut 3, the aperture of the through hole on one side, far away from the cylinder penetrating hole, in the stud 2 is gradually increased, and the lead 1 penetrates through the cylinder through the through hole of the stud 2 and penetrates out through the axial through hole of the fastening nut 3; and sealing materials are arranged on the lead 1 in the area with the gradually enlarged aperture, and all gaps in the through hole of the stud are filled with the sealing materials through the extrusion between the fastening nut and the stud.

The through hole at one side close to the cylinder hole in the stud 2 is a round hole with the aperture of 8mm, and a hexagonal fastening nut 9 is fixed on the stud 2 and used for fastening the stud 2 on the cylinder body.

And a through hole on one side of the stud 2, which is far away from the cylinder hole, is a conical hole with the diameter gradually increasing towards one end of the stud, which is far away from the cylinder hole.

The sealing material is raw material belt 6, raw material belt 6 is wound on the lead in the tapered hole, and the corresponding lead section after winding raw material belt 6 is in a tapered structure matched with the tapered hole and has a volume larger than that of the tapered hole.

The raw material belt 6 is also extended and wound on the conducting wire outside the conical hole.

An axial through hole is formed in the center of the end of the fastening nut 3 and used for leading out a lead, and the axial through hole is opposite to the through hole of the stud 2.

The area of the inner side end surface 8 of the fastening nut is larger than the area of the end surface 7 of one end of the stud far away from the cylinder hole.

Example 2:

the embodiment 2 of the present disclosure provides a bearing box, including the cylinder body of the embodiment 1 of the present disclosure for penetrating the cylinder fixing device.

Example 3:

the embodiment 3 of the present disclosure provides a steam turbine, which includes the cylinder body of the embodiment 1 of the present disclosure for penetrating the cylinder.

Example 4:

the embodiment 4 of the present disclosure provides a steam turbine, which includes the bearing box of the embodiment 2 of the present disclosure.

The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure, and various modifications and changes may be made to the present disclosure by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.

Claims

1. A fixing device for cylinder body cylinder penetration is characterized by comprising a stud with a through hole and a fastening nut, wherein a taper screw thread is arranged on one side of the stud connected with a cylinder penetration hole and used for fixing the stud at the cylinder penetration hole of a cylinder body; the other side of the stud is provided with a common thread matched with the fastening nut, the aperture of the through hole on the side, far away from the cylinder hole, in the stud is gradually increased, and the lead penetrates through the cylinder through the through hole of the stud and penetrates out through the axial through hole of the fastening nut; and sealing materials are arranged on the conducting wires in the area with the gradually enlarged hole diameter, and all gaps in the through holes of the studs are filled with the sealing materials through extrusion between the fastening nuts and the studs.

2. A fixing device for a cylinder block in a penetrating way according to claim 1, wherein a through hole at one side of the stud close to the cylinder penetrating hole is a round hole with the diameter of 8 mm.

3. The cylinder penetrating fixing device of claim 2, wherein the through hole at one side of the stud far away from the cylinder penetrating hole is a conical hole with the diameter gradually increasing towards the end of the stud far away from the cylinder penetrating hole.

4. A cylinder penetrating fixing device as claimed in claim 3, wherein said sealing material is a raw material tape, a raw material tape is wound on the lead inside the tapered hole, and the corresponding lead section after winding the raw material tape is in a tapered structure matching with the tapered hole and has a volume larger than that of the tapered hole.

5. The cylinder penetrating fixing device of claim 4 wherein said raw material tape is further extended and wound on the wire outside the tapered hole.

6. The cylinder penetrating fixing device of claim 1, wherein an axial through hole is formed at a center position of an end portion of the fastening nut for leading out a lead.

7. A cylinder penetration fixture according to claim 6, in which the axial through bore is disposed opposite the stud through bore.

8. The cylinder penetrating fixing device of claim 1, wherein the area of the inner side end face of the fastening nut is larger than the area of the end face of the stud at the end far away from the cylinder penetrating hole;

or a hexagonal fastening nut is fixed on the stud and used for fastening the stud on the cylinder body.

9. A bearing housing comprising the cylinder block penetration fixture according to any one of claims 1 to 8.

10. A steam turbine comprising the cylinder block penetration fixture of any one of claims 1 to 8;

or, comprising a bearing housing according to claim 9.