Detachable flange sealing surface automatic grinding device

Abstract

The utility model belongs to the technical field of flange sealing surface repairing, and particularly relates to an automatic grinding device for a detachable flange sealing surface. The sealing gasket grinding device comprises a grinding support connected with a sealing gasket, the grinding support is connected with a tenon body used for installing a driving source, and the tenon body is connected with a pre-tightening force compensation assembly so that the sealing gasket can be attached to the grinding face of a flange. A combined tool method is adopted, an electric hand drill or an electric wrench is used for driving, the spring is arranged in the device to automatically compensate the pressure of the sealing gasket and the flange, and the purposes of high efficiency and manpower saving are achieved.

Description

Technical Field

[0001] This utility model belongs to the field of flange sealing surface repair technology, and in particular relates to an automatic grinding device for detachable flange sealing surfaces. Background Technology

[0002] Flange leaks are a frequent occurrence in chemical production processes, often accompanied by damage to the sealing surface. There are generally two methods for dealing with damaged flange sealing surfaces: one is to replace the flange, which results in higher production costs; the other is to use a gasket and polishing compound to grind and repair the sealing surface.

[0003] The existing method of using ring gaskets and polishing paste to grind and repair the sealing surface involves welding a bracket and manually grinding it, which is not only time-consuming and labor-intensive, but also increases the workload. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this invention provides an automatic grinding device for detachable flange sealing surfaces. This invention uses an electric device in conjunction with a combination of tools to grind the flange sealing surfaces, reducing labor intensity.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An automatic grinding device for detachable flange sealing surfaces includes a grinding bracket connected to a gasket, a fore-and-aft body for mounting a drive source connected to the grinding bracket, and a preload compensation component connected to the fore-and-aft body to ensure that the gasket fits against the grinding surface of the flange.

[0007] Preferably, the grinding support includes three fixing rods arranged at 120 degrees to each other, and one end of each of the three fixing rods is fixedly connected to the falcon body.

[0008] Preferably, the preload compensation assembly includes a tension member and a fixed bracket. One end of the tension member is connected to the tenon body, and the other end of the tension member is connected to the fixed bracket. The fixed bracket is detachably installed on the inner ring of the flange.

[0009] Preferably, the fixed bracket is arranged along the central axis of the flange, and an adjusting member arranged radially along the flange is sleeved at the end of the fixed bracket away from the tension member, and a fixed support foot is threaded to the end of the adjusting member away from the fixed bracket.

[0010] Preferably, the middle part of the falcon body is provided with a mounting cavity that matches the drive source connector, and a pressure cap is installed in the mounting cavity. The tension member passes through the falcon body and is connected to the pressure cap.

[0011] Preferably, the tensioning member is a spring, and the bottom of the pressure cap is provided with a thrust bearing, through which the tensioning member passes and connects to the pressure cap.

[0012] Preferably, a support bearing is fitted on the outside of the falcon body.

[0013] Preferably, the adjusting element is an adjusting nut, and three adjusting elements are spaced apart.

[0014] The advantages of this utility model are:

[0015] (1) This utility model adopts a combination tool method, which is driven by a hand drill or electric wrench. The device is equipped with a spring to automatically compensate for the pressure of the sealing gasket and the flange, so as to achieve high efficiency and save manpower.

[0016] (2) This utility model uses the circumferential motion of the drive device to drive the circumferential motion of the grinding bracket and the sealing gasket to grind the sealing surface. At the same time, the tension force of the spring is used to compensate for the grinding pre-tightening force, so as to avoid the gap in the grinding surface and the grinding effect. The flexibility of the spring is used to prevent the installation error of the grinding device from causing the grinding circumferential motion center to deviate from the flange and affect the grinding quality.

[0017] (3) The horizontal support bearing provided in this utility model is used to support the device when it is installed horizontally. By supporting the outer ring of the bearing, the device is prevented from falling off, and the circumferential motion during grinding is not affected. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a partially enlarged structural diagram of the falcon body of this utility model.

[0020] Figure 3 This is a top view of the structure of this utility model.

[0021] The meanings of the symbols in the diagram are as follows:

[0022] 1-Flange, 2-Sealing gasket, 3-Grinding bracket, 4-Tensioning component, 5-Falcon body, 6-Support bearing, 7-Mounting cavity, 8-Gland cover, 9-Thrust bearing, 10-Fixed bracket, 11-Adjusting component, 12-Fixed support foot. Detailed Implementation

[0023] like Figure 1-3As shown, an automatic grinding device for detachable flange sealing surfaces includes a flange 1 (with grinding paste); a sealing gasket 2 that matches the grinding surface of the flange 1; grinding brackets 3 (including 3 brackets, spaced 120 degrees apart), the grinding brackets 3 being fixedly connected to the outer wall of a tenon body 5, with the sealing gasket 2 installed at the bottom of the grinding brackets 3; a tension member 4 (which may be a spring) providing preload; a tenon body 5, with an open mounting cavity 7 for mounting a drive source; a horizontal support bearing 6 for fixing the device during horizontal installation; and a pressure cap 8 located at... Above the thrust bearing 9, there is a structure to press down on the upper part of the thrust bearing 9; the thrust bearing 9 is connected to the tension member 4 so that the tension member 4 remains stationary when the falcon body 5 rotates; the fixed bracket 10 is connected to the tension member 4 at one end and has three sleeve rods at 120 degrees to each other at the other end; the adjusting member 11 (3 pieces, at 120 degrees to each other, which can be adjusting nuts) is connected to the sleeve rods at one end and to the fixed support leg 12 at the other end; the fixed support leg 12 (3 pieces, at 120 degrees to each other) is adjusted by turning the adjusting member 11 so that the fixed support leg 12 is closer to the inner wall of the flange 1.

[0024] The grinding bracket 3 is welded to the falcon body 5 as a whole. The thrust bearing 9 is installed inside the falcon body 5. The tension member 4 and the pressure cover 8 are fixedly installed inside the falcon body 5. The fixed support leg 12 and the fixed bracket 10 are installed together with the adjusting member 11 by threads and fixed to the inner ring of the flange 1. The tension member 4 is connected to the fixed bracket 10.

[0025] The driving source can be a hand drill, other circular motion power tools, pneumatic motors, or other driving devices.

[0026] Example 1

[0027] Taking vertical installation as an example:

[0028] Install the fixed bracket 10, adjusting component 11, and fixed support leg 12 assembly, and adjust the tightness to make the fixed bracket 10 concentric with the flange 1. Weld and fix the sealing gasket 2, grinding bracket 3, and tenon body 5. Install the sealing gasket 2, grinding bracket 3, tenon body 5, pressure cap 8, spring, and thrust bearing 9 assembly. Connect the spring to the fixed bracket 10. Connect a hand drill or other power tool to the joint of the installation cavity 7. Apply grinding paste to the sealing surface of the flange 1. Turn on the hand drill or other power tool to grind the sealing surface.

[0029] Example 2

[0030] Taking horizontal installation as an example:

[0031] The horizontal support bearing 6 is used to support the device when it is installed horizontally. By supporting the outer ring of the bearing, the device is prevented from falling off, and the circumferential motion during grinding is not affected. Other steps are the same as in Example 1.

[0032] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic grinding device for detachable flange sealing surfaces, characterized in that, It includes a grinding bracket (3) connected to the sealing gasket (2), the grinding bracket (3) being connected to a falcon body (5) for mounting a drive source, the falcon body (5) being connected to a preload compensation component so that the sealing gasket (2) fits against the grinding surface of the flange (1).

2. The automatic grinding device for detachable flange sealing surfaces according to claim 1, characterized in that: The grinding support (3) includes three fixed rods arranged at 120 degrees to each other, and one end of each of the three fixed rods is fixedly connected to the falcon body (5).

3. The automatic grinding device for detachable flange sealing surfaces according to claim 1, characterized in that: The preload compensation assembly includes a tension member (4) and a fixed bracket (10). One end of the tension member (4) is connected to the falcon body (5), and the other end of the tension member (4) is connected to the fixed bracket (10). The fixed bracket (10) is detachably installed on the inner ring of the flange (1).

4. The automatic grinding device for detachable flange sealing surfaces according to claim 3, characterized in that: The fixed bracket (10) is arranged along the central axis of the flange (1). The end of the fixed bracket (10) away from the tension member (4) is fitted with an adjusting member (11) arranged radially along the flange (1). The end of the adjusting member (11) away from the fixed bracket (10) is threaded with a fixed support foot (12).

5. The automatic grinding device for detachable flange sealing surfaces according to claim 3, characterized in that: The middle part of the falcon body (5) is provided with an installation cavity (7) that matches the drive source connector. A pressure cap (8) is installed in the installation cavity (7). The tension member (4) passes through the falcon body (5) and is connected to the pressure cap (8).

6. The automatic grinding device for a detachable flange sealing surface according to claim 5, characterized in that: The tension member (4) is a spring, and the bottom of the pressure cover (8) is provided with a thrust bearing (9). The tension member (4) passes through the thrust bearing (9) and is connected to the pressure cover (8).

7. The automatic grinding device for detachable flange sealing surfaces according to claim 1, characterized in that: The falcon body (5) is fitted with a support bearing (6).

8. The automatic grinding device for detachable flange sealing surfaces according to claim 4, characterized in that: The adjusting element (11) is an adjusting nut, and there are three adjusting elements (11) spaced apart.

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