Mechanical sealing ring mounting tool

Abstract

The utility model relates to the technical field of auxiliary installation of mechanical sealing rings, in particular to a mechanical sealing ring installation tool which comprises a base, a pressing piece is arranged on the base, an adjusting cushion block placed on the base is arranged at the position opposite to the pressing piece, and a sealing gland is arranged between the pressing piece and the adjusting cushion block. The whole pressing piece is in a rhombus shape with the end hinged, the upper end of the pressing piece is fixed to the base, a pressing plate is fixedly arranged at the lower end of the pressing piece, a lead screw with the end extending to the outer side is arranged between the left end and the right end of the pressing piece, and a spring is arranged on the portion, located between the left end and the right end, of the lead screw. And when extending, the spring acts on the pressing plate, so that the pressing plate downwards generates pressure. The tool is compact in structure and convenient and reliable to operate, the sealing ring can be easily and rapidly installed only through simple operation, and meanwhile stress is even in the installation process of the sealing ring.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary installation of mechanical sealing rings, in particular to a mechanical sealing ring installation tool. Background Art

[0002] Embedded mechanical seal rings are widely used in machine pump equipment. In order to ensure the sealing effect, the auxiliary seal ring is often required to have a certain amount of interference, which leads to greater resistance when the mechanical seal ring is embedded in the seal seat. At present, there are few auxiliary installation tools for mechanical seal rings of centrifugal pumps, compressors and other equipment, and they are mainly installed by hand. The installation of seal rings by hand often leads to improper installation, damage to the seal ring, and even injury to the installer due to insufficient force. The use of rubber hammers and PTFE rods to knock on mechanical seal rings often leads to problems such as uneven force and uncontrolled force due to the limitations of the structure and size of the rubber hammer and PTFE rod, which damages the sealing surface, resulting in waste of materials and working hours. In addition, the hidden dangers of microscopic damage caused by knocking shorten the operation cycle of the centrifugal pump and increase the maintenance frequency of the centrifugal pump. Utility Model Content

[0003] In view of the above problems, the utility model provides a mechanical seal ring installation tool, which solves the problems raised in the background technology.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a mechanical sealing ring installation tool, including a base, a pressing piece is provided on the base, and an adjusting pad placed on the base is provided at a position opposite to the pressing piece, a sealing pressure cover is provided between the pressing piece and the adjusting pad, the pressing piece is in a rhombus shape with hinged ends as a whole, and the upper end is fixed on the base, a pressure plate is fixed on the lower end, a screw rod with an end extending outward is provided between the left and right ends, and a spring is provided on the part of the screw rod between the left and right ends, and the pressing piece is extended and retracted in the longitudinal direction under the rotation of the screw rod, and acts on the pressure plate when extended, so that the pressure plate generates downward pressure.

[0005] As an optimization, the pressing member includes a first arm, a second arm, a third arm and a fourth arm with the same structure, and four ends are provided with hinged seats hinged to each other.

[0006] As an optimization, rivets are provided between the first arm, the second arm, the third arm and the fourth arm and the hinge seat.

[0007] As an optimization, the longitudinal section of the hinged seat is U-shaped.

[0008] As an optimization, the hinge seat at the left end of the pressing member is provided with an internal threaded hole cooperating with the screw rod, the hinge seat at the right end of the pressing member is provided with a through hole for the screw rod to pass through, and the screw rod passing through to the outside is provided with a gasket and a stopper.

[0009] As an optimization, the base includes a bottom plate and an L-shaped cantilever arranged on one side of the bottom plate.

[0010] As an optimization, the inner diameter of the spring is larger than the outer diameter of the screw rod.

[0011] The beneficial effects of the utility model are as follows: the utility model provides a mechanical sealing ring installation tool with a compact structure and convenient and reliable operation. The use of the tool only requires simple operation to achieve easy and quick installation of the sealing ring. At the same time, the sealing ring is subjected to uniform force during installation, which can effectively prevent the sealing ring from being skewed or even damaged due to uneven force, and can effectively avoid the problem of microscopic defects in the sealing ring caused by knocking by ordinary installation means, shortening the operating cycle of the centrifugal pump and increasing the frequency of maintenance of the centrifugal pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the utility model after installation;

[0013] Figure 2 This is a schematic diagram of the structure of the pressing member of the utility model;

[0014] Figure 3 It is a structural schematic diagram of the base of the utility model.

[0015] Among them: 1. Pressing piece; 2. Base; 3. Pressing plate; 4. Mechanical sealing ring; 5. Sealing gland; 6. Adjusting pad; 1.1. Articulated seat; 1.5. Rivet; 1.6. Screw rod; 1.7. First arm; 1.8. Gasket; 1.9. Spring; 2.1. Cantilever; 2.2. Bottom plate. DETAILED DESCRIPTION

[0016] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0017] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0018] For the convenience of description, if the words "up", "down", "left" and "right" appear in the present invention, they only indicate that they are consistent with the up, down, left and right directions of the drawings themselves, and do not limit the structure. They are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] like Figure 1-3 As shown, a mechanical seal ring installation tool comprises a base 2, wherein the base 2 comprises a bottom plate 2.2 and an L-shaped cantilever 2.1 arranged on one side of the bottom plate 2.2, a pressing piece 1 is arranged on the base 2, and an adjusting pad 6 placed on the base 2 is arranged at a position opposite to the pressing piece 1. For ease of use, a plurality of adjusting pads 6 with different thicknesses can be arranged, a sealing gland 5 is arranged between the pressing piece 1 and the adjusting pad 6, and the sealing gland 5 is a mechanical seal gland 5 for ordinary pumps, and the pressing piece 1 is in a rhombus shape with an end hingedly arranged as a whole, and the upper end is fixed to the bottom On the seat 2, it can be connected by bolts, and a pressure plate 3 is fixed at the lower end. The outer diameter of the pressure plate 3 should be consistent with the outer diameter of the mechanical sealing ring 4 to ensure that the pressure plate 3 and the mechanical sealing ring 4 have sufficient contact area. A screw rod 1.6 with an end extending to the outside is provided between the left end and the right end. A spring 1.9 is provided on the part of the screw rod 1.6 located between the left end and the right end. The inner diameter of the spring 1.9 is larger than the outer diameter of the screw rod. By rotating the screw rod 1.6, the pressing piece 1 is extended and retracted in the longitudinal direction. When extended, it acts on the pressure plate 3 to generate downward pressure on the pressure plate 3.

[0020] like Figure 2 As shown, the pressing member 1 includes a first arm 1.7, a second arm, a third arm and a fourth arm with the same structure, and the first arm 1.7, the second arm, the third arm and the fourth arm form a rhombus shape, and the four ends are provided with hinged seats 1.1 hinged to each other; rivets 1.5 are provided between the first arm 1.7, the second arm, the third arm and the fourth arm and the hinged seat 1.1; the longitudinal section of the hinged seat 1.1 is U-shaped.

[0021] In order to realize the extension and retraction of the pressing member 1, a screw rod 1.6 is arranged on the pressing member 1, and an internal threaded hole cooperating with the screw rod 1.6 is arranged on the hinge seat 1.1 at the left end of the pressing member 1, and a through hole for the screw rod 1.6 to pass through is arranged on the hinge seat 1.1 at the right end of the pressing member 1, and a gasket 1.8 and a stopper are arranged on the screw rod 1.6 passing through to the outside.

[0022] Working principle: The utility model provides a mechanical seal ring installation tool. When in use, a gasket of corresponding thickness is selected according to the mechanical seal cover 5 of different sizes and placed on the bottom plate 2.2 of the base 2. A plurality of gaskets can also be used in combination. The mechanical seal cover 5 is placed on the upper surface of the gasket, and the axis of the seal ring installation groove of the mechanical seal cover 5 is aligned with the center point of the pressure plate 3. The mechanical seal ring 4 to be installed is placed in the seal installation groove position of the mechanical seal cover 5. The screw rod 1.6 is turned forward, and the distance between the left and right ends of the pressing piece 1 will become smaller, thereby achieving the effect of extending the pressing piece 1, so that the pressing piece 1 drives the pressure plate 3 to move downward until the pressure plate 3 contacts the mechanical seal ring 4. The screw rod 1.6 is continued to be turned forward until the mechanical seal ring 4 is pressed into the predetermined position, and the installation of the mechanical seal ring 4 is completed.

[0023] The above-mentioned specific implementation methods are only specific cases of the present utility model. The patent protection scope of the present utility model includes but is not limited to the product form and style of the above-mentioned specific implementation methods. Any appropriate changes or modifications made to them by ordinary technicians in the relevant technical field in accordance with the claims of the present utility model shall fall within the patent protection scope of the present utility model.

Claims

1. A mechanical seal ring installation tool, characterized in that: The invention comprises a base, a pressing piece is provided on the base, an adjusting pad is provided at a position opposite to the pressing piece and placed on the base, a sealing pressure cover is provided between the pressing piece and the adjusting pad, the pressing piece as a whole is in a rhombus shape with hinged ends, and the upper end is fixed on the base, a pressure plate is fixed on the lower end, a screw rod with an end extending outward is provided between the left end and the right end, a spring is provided on the part of the screw rod between the left end and the right end, and the pressing piece is extended and retracted in the longitudinal direction by the rotation of the screw rod, and acts on the pressure plate when extended, so that the pressure plate generates downward pressure.

2. The mechanical seal ring installation tool according to claim 1, characterized in that: The pressing member comprises a first arm, a second arm, a third arm and a fourth arm with the same structure, and four ends are provided with hinge seats hinged to each other.

3. The mechanical seal ring installation tool according to claim 2, characterized in that: Rivets are arranged between the first arm, the second arm, the third arm and the fourth arm and the hinge seat.

4. The mechanical seal ring installation tool according to claim 3, characterized in that: The longitudinal section of the hinged seat is U-shaped.

5. The mechanical seal ring installation tool according to claim 4, characterized in that: The hinge seat at the left end of the pressing member is provided with an internal threaded hole matched with the screw rod, the hinge seat at the right end of the pressing member is provided with a through hole for the screw rod to pass through, and the screw rod passing through to the outside is provided with a gasket and a stopper.

6. The mechanical seal ring installation tool according to claim 1, characterized in that: The base comprises a bottom plate and an L-shaped cantilever arranged at one side of the bottom plate.

7. The mechanical seal ring installation tool according to claim 1, characterized in that: The inner diameter of the spring is greater than the outer diameter of the screw rod.

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