CN219005669U

CN219005669U - Flange ring type sealing surface grinding ring fixing device

Info

Publication number: CN219005669U
Application number: CN202223346806.5U
Authority: CN
Inventors: 张志敏; 李义民; 胡萍; 刘建平; 李青; 韩渊; 梁瑞锋
Original assignee: Lanzhou LS Heavy Equipment Co Ltd
Current assignee: Lanzhou LS Heavy Equipment Co Ltd
Priority date: 2022-12-14
Filing date: 2022-12-14
Publication date: 2023-05-12
Anticipated expiration: 2032-12-14

Abstract

The application relates to a flange ring type sealing surface grinding ring fixing device, which consists of at least three fixing units, wherein each fixing unit comprises an inverted U-shaped clamping sleeve (1), and a flange plate end face pressing mechanism and a grinding ring end face pressing mechanism which are arranged on a top panel of the U-shaped clamping sleeve (1); the thickness of the opening of the U-shaped cutting sleeve (1) is matched with the thickness of the flange plate; the flange plate end face pressing mechanism is located on one side far away from the circle center, and the grinding ring end face pressing mechanism is located on one side close to the circle center. In this application, grinding ring fixing device design is split structure, and simple structure is light, occupies smallly, conveniently carries, installs a plurality of split structures in the ring flange excircle along the equipartition during the use, convenient operation. In addition, the position of the grinding ring end face pressing mechanism arranged in a certain range in the radial direction is adjustable, so that the universal range of the fixing device is further enlarged.

Description

Flange ring type sealing surface grinding ring fixing device

Technical Field

The application relates to the technical field of pressure vessel maintenance, in particular to a flange ring type sealing surface grinding ring fixing device.

Background

The annular sealing surfaces include tongue and groove surfaces, octagonal groove sealing surfaces, etc., wherein the octagonal groove sealing surfaces are often used for high-pressure vessel equipment, so that the sealing performance is critical to the safety of the equipment operation. In the processes of equipment hoisting, pipeline installation and disassembly, collision and damage of sealing surfaces can occur frequently, but the sealing principle of the annular sealing surfaces is line sealing, so that local collision and scratch positions cannot be repaired, the whole treatment is required to be carried out by using a grinding ring or machining equipment, and the sealing performance of the slightly scratched sealing surfaces can be ensured by using the grinding ring.

When the grinding ring repairing device is used for connecting the flange ring type sealing surface, the grinding repairing is easy because the positions of the pipe orifices of the device are different, and the grinding pressed surface is overlapped with the gravity direction for the pipe orifice sealing surface at the horizontal position, but the grinding ring is also required to bear the influence of the gravity of the grinding ring when the pipe orifice sealing surface at the non-horizontal position is manually ground, so that the labor consumption is large and the effect is not ideal. Accordingly, there is a need for a suitable grind ring attachment device that eliminates or reduces the effects of gravity on the grind ring itself, thereby solving the above-described problems. The common grinding ring fixing device in the prior art is usually an integral ring, and for a large-diameter connecting pipe sealing surface, the bracket has large weight and is not easy to install and carry; in addition, the structure of the integral ring piece cannot be flexibly adjusted, the application range is small, and when facing flanges with different sizes, different ring pieces are required to be correspondingly manufactured, so that the resource cost is consumed.

Disclosure of Invention

The technical problem to be solved in this application is to provide a flange ring type sealing face grinding ring fixing device that structure is light, easy to assemble and carry.

In order to solve the problems, the application provides a flange ring type sealing surface grinding ring fixing device, which consists of at least three fixing units, wherein each fixing unit comprises an inverted U-shaped clamping sleeve, and a flange plate end face pressing mechanism and a grinding ring end face pressing mechanism which are arranged on a top panel of the U-shaped clamping sleeve; the thickness of the opening of the U-shaped clamping sleeve is adapted to the thickness of the flange plate; the flange plate end face pressing mechanism is located on one side far away from the circle center, and the grinding ring end face pressing mechanism is located on one side close to the circle center.

Preferably, the position of the grinding ring end face pressing mechanism is adjustable within a certain range in the radial direction.

Preferably, the number of the flange plate end face compressing mechanisms is 2, the number of the grinding ring end face compressing mechanisms is 1, and the three are distributed on the top panel of the U-shaped clamping sleeve in an isosceles triangle.

Preferably, the flange end face pressing mechanism comprises a pressing bolt I vertically penetrating through the top panel and a pressing plate I arranged at the bottom of the pressing bolt I.

Preferably, the top of the compression bolt I is provided with a rotary hand piece I.

Preferably, a nut I used in cooperation with the compression bolt I is provided on the upper surface of the top panel.

Preferably, the grinding ring end face pressing mechanism comprises a hollow stud vertically penetrating through the top panel, a ball, a spring and a pressing plate II which are arranged in the hollow stud cavity from bottom to top, and a pressing bolt II arranged at the top of the pressing plate II; the ball is embedded in the opening at the bottom of the hollow stud, the bead bottom is exposed out of the opening, and the top of the compression bolt II penetrates out of the top of the hollow stud.

Preferably, the mounting hole on the top panel for the hollow stud to pass through is a radial oblong hole.

Preferably, the upper surface of the top panel is provided with a nut II matched with the hollow stud.

Preferably, a rotary hand piece II is arranged at the top of the compression bolt II, and a rotary hand piece III is arranged at the top of the hollow stud.

Compared with the prior art, the application has the following advantages:

in this application, grinding ring fixing device design is split structure, and simple structure is light, occupies smallly, conveniently carries, and according to the structure and the positional relationship of actual maintenance in-process ring flange and grinding ring, every split structure includes the U-shaped cutting ferrule and establishes ring flange end face hold-down mechanism and grinding ring end face hold-down mechanism on its top panel, installs a plurality of split structures in the ring flange excircle along the equipartition during the use, convenient operation.

In addition, considering in the actual operating mode, there will be a batch of ring flanges to be external diameter size the same, sealing surface size is different usually, therefore this application sets up grinding ring terminal surface hold-down mechanism and radially in the position adjustable in certain scope, has further enlarged this application fixing device's general scope (in certain scope, different flange thickness, different diameter's ring flanges, all are suitable).

Drawings

The following detailed description of the embodiments of the present application is provided in further detail with reference to the accompanying drawings.

Fig. 1 is a front view of a flange ring type seal face grinding ring fixing device provided in an embodiment of the present application.

Fig. 2 is a top view of a flange ring type seal face grinding ring fixing device according to an embodiment of the present application.

Fig. 3 is a front view of an installation of a flange ring type seal face grinding ring fixing device according to an embodiment of the present application.

Fig. 4 is an installation plan view of the flange ring type seal surface grinding ring fixing device provided in the embodiment of the application.

In the figure: 1-U-shaped cutting sleeve, 2-pressing plate I, 3-nut I, 4-pressing bolt I, 5-rotating hand piece I, 6-rotating hand piece II, 7-pressing bolt II, 8-rotating hand piece III, 9-pressing plate II, 10-hollow stud, 11-nut II, 12-spring, 13-ball, 14-flange plate, 15-grinding ring.

Detailed Description

Referring to fig. 1 and 2, the embodiment of the application provides a flange ring type sealing surface grinding ring fixing device, which consists of four independent fixing units, wherein each fixing unit mainly comprises a U-shaped clamping sleeve 1, and a flange plate end face pressing mechanism and a grinding ring end face pressing mechanism which are arranged on the U-shaped clamping sleeve 1.

In this application, U-shaped cutting ferrule 1 is the channel-section steel simmer, and the setting falls, and its opening thickness suits with the thickness of ring flange, has the radian that suits with the flange external diameter on length direction. In the U-shaped ferrule 1, compared with the top panel, enough area is reserved for installing two groups of pressing mechanisms, the bottom panel is mainly matched with the top panel to realize clamping, and the bottom panel can be narrower than the top panel.

The flange end face pressing mechanism and the grinding ring end face pressing mechanism are arranged on the top panel of the U-shaped clamping sleeve 1, and are positioned on one side far away from the circle center according to the structure and the position relationship of the flange and the grinding ring in the actual inspection, maintenance and grinding process, and the grinding ring end face pressing mechanism is positioned on one side close to the circle center. The number of the flange plate end face compressing mechanisms is 2, the number of the grinding ring end face compressing mechanisms is 1, the three are distributed on the top panel of the U-shaped clamping sleeve 1 in an isosceles triangle, and the arrangement mode can enhance the overall stability of a single fixing unit.

In the application, the flange end face pressing mechanism mainly comprises a pressing bolt I4 and a pressing plate I2; the compression bolt I4 is vertically penetrated on the top panel, the bottom of the compression bolt I4 is positioned below the top panel, and the top is positioned above the top panel; the clamp plate I2 welds in clamp bolt I4 bottom, and rotatory clamp bolt I4 realizes clamp plate I2's reciprocates. Further, in order to facilitate the installation and rotation of the compression bolt I4 on the top panel, a nut I3 matched with the compression bolt I4 is fixed on the upper surface of the top panel; to facilitate rotation of the hold-down bolt I4, a rotating hand piece I5 is provided at the top of the hold-down bolt I4, such as shown, and the rotating hand piece I5 may be a pin rod inserted into a pin hole at the top of the hold-down bolt I4.

In the application, the grinding ring end face pressing mechanism mainly comprises a hollow stud 10, a ball 13, a spring 12, a pressing plate II9 and a pressing bolt II7; the hollow stud 10 is vertically penetrating on the top panel, the bottom of the hollow stud 10 is positioned below the top panel, and the top is positioned above the top panel. The ball 13, the spring 12 and the pressing plate II9 are arranged in the cavity of the hollow stud 10 from bottom to top, the ball 13 is embedded in the opening at the bottom of the hollow stud 10, the bottom of the ball is exposed out of the opening, and the matching part of the bottom of the inner wall of the hollow stud 10 and the ball 13 is a spherical surface, so that the axial displacement of the ball is limited. The spring 12 is a high-elastic spring, and is used for enabling the ball 13 to form elastic contact with the end face of the grinding ring, so that the clamping caused by uneven manual grinding force is avoided. The bottom of the compression bolt II7 is welded at the top of the compression plate II9, and the top of the compression bolt II penetrates out of the top of the hollow stud 10.

Further, in order to facilitate the installation and rotation of the hollow stud 10 on the top panel, a nut II11 matched with the hollow stud 10 is fixed on the upper surface of the top panel; for the convenience to hold-down bolt II7, cavity double-screw bolt 10 rotate, hold-down bolt II7 top sets up rotatory hand piece II6, and cavity double-screw bolt 10 top is equipped with rotatory hand piece III8, for example the illustration, and rotatory hand piece II6 can be for wearing to establish the round pin pole in the pinhole at hold-down bolt II7 top, and rotatory hand piece III8 can be for dialling the tooth, dials the downthehole wall tapping in center of tooth for hold-down bolt II 7's the last.

In the actual manufacturing process, the compression bolt II7, the rotary hand piece III8, the pressing plate II9, the hollow stud 10, the spring 12 and the ball 13 can be welded into an integral structure in advance, and the nut II11 can be tightened when in use. In this application, consider in the actual operating mode, there will be a batch ring flange to be external diameter size the same, sealing surface size is different usually, grinding ring terminal surface hold-down mechanism further sets up to be in radial certain within range position adjustable, for example, on the top panel of U-shaped cutting ferrule 1, set up the mounting hole that supplies cavity double-screw bolt 10 to pass for the slotted hole of radially seting up, nut II11 is with nut II11 and top panel spot welding after the position determination of slotted hole, and the spot welding is good to dismantle the change position of being convenient for next time.

Based on the above disclosure, the assembly, the method of use and the working principle of the flange ring type sealing surface grinding ring fixing device are illustrated below, and reference is made to fig. 3 and 4.

(1) And assembling the nut I3 and the compression bolt I4, penetrating the compression bolt I4 into bolt holes on two sides of a top panel of the U-shaped clamping sleeve 1, and welding the pressing plate I2 and the compression bolt I4.

(2) The grinding ring 15 is placed into a flange ring type sealing surface of a connecting pipe to be ground, four U-shaped clamping sleeves 1 are uniformly distributed around the flange plate 14, a pin rod (a rotary hand piece I5) is inserted into a hole groove of the compression bolt I4, and the pin rod (the rotary hand piece I5) is rotated to enable the compression bolt I4 to downwards compress the end face of the flange plate.

(3) And adjusting the nut II11 to enable the screw hole to be positioned right above the end face of the grinding ring, and then welding and fixing the nut II11 on the top panel.

(4) The toggle (rotary handpiece III 8) is rotated to move the hollow stud 10 downwardly into contact with the grinding ring end face.

(5) The pin (rotary hand piece II 6) is rotated to move the hold-down bolt II7 downward and to compress the spring 12, and the balls 13 are pressed against the end face of the grinding ring.

(6) A small amount of lubricating oil is smeared on the end face of the grinding ring so as to ensure that the balls can freely roll during circumferential grinding.

The technical scheme provided by the application is described in detail. Specific examples are set forth herein to illustrate the principles and embodiments of the present application, and the description of the examples above is only intended to assist in understanding the structure and core ideas of the present application. It should be noted that it would be obvious to those skilled in the art that various improvements and modifications can be made to the present application without departing from the principles of the present application, and such improvements and modifications fall within the scope of the claims of the present application.

Claims

1. The fixing device for the grinding ring of the flange ring type sealing surface is characterized by comprising at least three fixing units, wherein each fixing unit comprises an inverted U-shaped clamping sleeve (1), and a flange plate end face pressing mechanism and a grinding ring end face pressing mechanism which are arranged on a top panel of the U-shaped clamping sleeve (1); the thickness of the opening of the U-shaped cutting sleeve (1) is matched with the thickness of the flange plate; the flange plate end face pressing mechanism is located on one side far away from the circle center, and the grinding ring end face pressing mechanism is located on one side close to the circle center.

2. The fixture of claim 1, wherein the grinding ring end face hold down mechanism is position adjustable within a range in a radial direction.

3. The fixing device according to claim 1, wherein the number of the flange end face pressing mechanisms is 2, the number of the grinding ring end face pressing mechanisms is 1, and the three pressing mechanisms are distributed on the top panel of the U-shaped clamping sleeve (1) in an isosceles triangle shape.

4. A fixture according to claim 1, wherein the flange end face hold-down mechanism comprises hold-down bolts I (4) provided vertically penetrating the top panel and a hold-down plate I (2) provided at the bottom of the hold-down bolts I (4).

5. The fixing device according to claim 4, characterized in that the top of the compression bolt I (4) is provided with a rotating hand piece I (5).

6. The fixing device according to claim 4, characterized in that the upper surface of the top panel is provided with a nut I (3) for co-operation with the compression bolt I (4).

7. The fixing device according to claim 1, characterized in that the grinding ring end face pressing mechanism comprises a hollow stud (10) vertically penetrating the top panel, a ball (13), a spring (12) and a pressing plate II (9) arranged in a cavity of the hollow stud (10) from bottom to top, and a pressing bolt II (7) arranged on top of the pressing plate II (9); the ball (13) is embedded in the opening at the bottom of the hollow stud (10), the bottom of the ball is exposed out of the opening, and the top of the compression bolt II (7) penetrates out of the top of the hollow stud (10).

8. The fixture according to claim 7, wherein the mounting hole in the top panel through which the hollow stud (10) passes is a radial oblong hole.

9. A fixture according to claim 7, wherein the upper surface of the top panel is provided with a nut II (11) for use with the hollow stud (10).

10. The fixing device according to claim 7, characterized in that the top of the compression bolt II (7) is provided with a rotary hand piece II (6), and the top of the hollow stud (10) is provided with a rotary hand piece III (8).