Mechanical seal static ring installation tool

Abstract

The utility model relates to water pump sealing field discloses a kind of mechanical seal static ring installation tools, including installation ring, the bottom end of installation ring is contacted with disc, the top of disc is provided with adjusting mechanism, the inner wall of installation ring is detachably installed with static ring, the top of static ring is contacted with O ring, the top of O ring is provided with sleeve, the inner wall of sleeve is provided with replacement assembly, the adjusting mechanism includes connecting pipe, the outer wall of connecting pipe is threadedly connected with nut.In the utility model, through the flexible contact of O ring and static ring, the hard injury is avoided, and the sleeve is accurately pressed and installed by the rotation of nut, the stress of static ring is uniform, and the installation is flat, the eccentricity, not in place and other problems that can occur during manual installation are effectively solved, the leakage rate of mechanical seal is significantly reduced, the equipment operation stability is ensured, and the energy waste and environmental pollution caused by medium leakage are reduced.

Description

Technical Field

[0001] This utility model relates to the field of water pump sealing, and in particular to a mechanical seal stationary ring installation tool. Background Technology

[0002] Mechanical seals are key devices used in rotating equipment such as pumps to prevent media leakage. As one of the core components of a mechanical seal, the stationary ring needs to be tightly fitted with the rotating ring to form a sealing end face. Its installation accuracy directly affects the sealing performance and operational stability of the equipment.

[0003] In existing technologies, the installation of the stationary ring of a mechanical seal is mostly carried out by manual direct pressing or with the assistance of simple tools. During the operation, the operator needs to place the stationary ring in the installation position of the sealing cavity, and apply pressure by hand or with a general tool to make the stationary ring embed into the pre-set installation cavity. Then, the mechanical seal rotating ring and other components are assembled to finally achieve the sealing function of the equipment.

[0004] Due to the large depth of the sealing cavity, manual operation makes it difficult to ensure uniform force on the stationary ring, which can easily lead to problems such as misalignment and tilting during pressing, resulting in poor fit of the sealing end face. Furthermore, the manual pressing force is difficult to control, which may cause damage to the stationary ring sealing surface or improper installation, thereby causing media leakage during production operation. This not only wastes energy and pollutes the environment, but may also affect the safe and stable operation of the equipment, increase the frequency of maintenance and maintenance costs. Therefore, a mechanical seal stationary ring installation tool is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a mechanical seal stationary ring installation tool, which aims to improve the problems of uneven force and poor fit that may be caused by manual installation in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a mechanical seal stationary ring installation tool, comprising an installation ring, the bottom end of which contacts a disc, the top end of which is provided with an adjustment mechanism, a stationary ring detachably installed on the inner wall of the installation ring, the top end of which contacts an O-ring, the top end of which is provided with a sleeve, and the inner wall of the sleeve is provided with a replacement component.

[0007] The adjustment mechanism includes a connecting pipe with a nut threaded onto its outer wall, and the connecting pipe is fixedly connected to the top of the disc.

[0008] As a further description of the above technical solution:

[0009] The replacement component includes a connecting ring, which is detachably mounted on the inner wall of the sleeve. The outer wall of the connecting ring has an insertion hole, and a fastening bolt is inserted into the inner wall of the insertion hole.

[0010] As a further description of the above technical solution:

[0011] The fastening bolts are threaded through and connected to the inner wall of the sleeve.

[0012] As a further description of the above technical solution:

[0013] The fastening bolts are provided in two sets, and the two sets of fastening bolts are arranged symmetrically.

[0014] As a further description of the above technical solution:

[0015] The O-ring is fixedly connected to the bottom end of the connecting ring.

[0016] As a further description of the above technical solution:

[0017] The bottom end of the nut contacts the top end of the sleeve.

[0018] As a further description of the above technical solution:

[0019] The bottom end of the nut contacts the top end of the sleeve.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the O-ring and the stationary ring make flexible contact, avoiding hard damage. At the same time, the rotation of the nut pushes the sleeve for precise pressing, ensuring that the stationary ring is subjected to uniform force and installed flat. This effectively solves the problems of eccentricity and incomplete installation that are easy to occur during manual installation, significantly reduces the leakage rate of mechanical seals, ensures the stability of equipment operation, and reduces energy waste and environmental pollution caused by media leakage.

[0022] 2. In this utility model, the connection ring and O-ring can be quickly disassembled and assembled by tightening the fastening bolts without complicated procedures, which improves maintenance efficiency. The tool has a simple overall structure and is highly practical. Practical application has verified that it can safely and conveniently complete the installation of the stationary ring, extend the service life of the mechanical seal, and provide a reliable guarantee for continuous and stable production operation. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of a mechanical seal stationary ring installation tool proposed in this utility model;

[0024] Figure 2 This is a cross-sectional view of the mounting ring of a mechanical seal stationary ring mounting tool proposed in this utility model;

[0025] Figure 3 This is an exploded cross-sectional view of the connecting pipe and sleeve of a mechanical seal stationary ring installation tool proposed in this utility model.

[0026] Figure 4 This is an exploded view of the connecting ring and sleeve of a mechanical seal stationary ring installation tool proposed in this utility model.

[0027] Legend:

[0028] 1. Mounting ring; 2. Disc; 3. Connecting pipe; 4. Sleeve; 5. Nut; 6. Stationary ring; 7. O-ring; 8. Connecting ring; 9. Insertion hole; 10. Fastening bolt. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Reference Figures 1-3 This utility model provides an embodiment of a mechanical seal stationary ring installation tool, including an installation ring 1. The installation ring 1 is the connection and installation point of the existing single-stage clean water centrifugal pump stationary ring 6. The bottom end of the installation ring 1 contacts a disc 2, and the top end of the disc 2 is provided with an adjustment mechanism. The stationary ring 6 is detachably installed on the inner wall of the installation ring 1. The stationary ring 6 and the rotating ring cooperate to form a sealing end face. During the operation of the equipment, the stationary ring 6 is fixed and its end face is tightly fitted with the end face of the rotating ring. Through the extremely small gap between the two and the sealing medium such as sealing liquid, the medium inside the equipment is prevented from leaking to the outside. The top end of the stationary ring 6 contacts an O-ring 7, and the top end of the O-ring 7 is provided with a sleeve 4. The O-ring 7 has a certain elasticity, which can prevent the sleeve 4 from directly damaging the stationary ring 6. The inner wall of the sleeve 4 is provided with a replacement component.

[0031] The adjustment mechanism includes a connecting pipe 3, with a nut 5 threadedly connected to the outer wall of the connecting pipe 3. The upper outer wall of the connecting pipe 3 is threaded, allowing the nut 5 to be threadedly adjusted with the upper end of the connecting pipe 3. The middle and lower ends of the connecting pipe 3 are smooth surfaces, ensuring that the sleeve 4 can move along the smooth surface without causing difficulty in movement. The connecting pipe 3 is fixedly connected to the top of the disc 2.

[0032] Reference Figures 2-4The replacement components include a connecting ring 8, which is made of relatively inexpensive hard plastic material and can be replaced along with the O-ring 7 at any time. The connecting ring 8 is detachably installed on the inner wall of the sleeve 4. The sleeve 4 has a corresponding groove for the connecting ring 8, which can accommodate the connecting ring 8 to be installed in the groove. The outer wall of the connecting ring 8 has an insertion hole 9, and a fastening bolt 10 is inserted into the inner wall of the insertion hole 9. The fastening bolt 10 passes through and is threadedly connected to the inner wall of the sleeve 4. The sleeve 4 has a threaded hole corresponding to the fastening bolt 10, which can accommodate the fastening bolt 10 to pass through the sleeve 4. There are two sets of fastening bolts 10, which are symmetrically arranged. The O-ring 7 is fixedly connected to the bottom end of the connecting ring 8.

[0033] Reference Figures 1-3 The bottom end of the nut 5 contacts the top end of the sleeve 4. The nut 5 can cause the sleeve 4 to move by squeezing through the change of position. The inner wall of the mounting ring 1 is provided with a mounting cavity, which allows the stationary ring 6 to be installed in the cavity.

[0034] Working principle: First, when installing the stationary ring 6, remove the mounting ring 1 from the single-stage clean water centrifugal pump. Then, pass the connecting pipe 3 of the disc 2 through the middle of the mounting ring 1. Apply glycerin to the rubber sealing gasket of the stationary ring 6 beforehand. Place the stationary ring 6 inside the mounting cavity of the mounting ring 1. Then, pass the sleeve 4 through and fit it onto the outer wall of the connecting pipe 3. Use the O-ring 7 at the bottom of the sleeve 4 to contact the surface of the stationary ring 6, making the sleeve 4 parallel to the end face of the mounting cavity. Next, insert the nut 5 through the thread on its inner wall into the thread on the upper part of the outer wall of the connecting pipe 3. When the position of the sleeve 4 needs to be adjusted, the nut 5 can be rotated and moved along the connecting pipe 3. When the position of the nut 5 changes, it will squeeze the sleeve 4, thereby pushing the sleeve 4 to move downward along the smooth surface of the connecting pipe 3. This achieves precise adjustment of the position of the sleeve 4 and allows for safe and convenient pressing of the stationary ring 6 into place. This avoids problems such as uneven force and eccentric installation that could cause media leakage, environmental pollution, or even affect production operations. Furthermore, the O-ring 7 will not cause any hard damage when it comes into contact with the stationary ring 6.

[0035] When the O-ring 7 needs to be replaced, simply turn the fastening bolt 10 to separate the fastening bolt 10 from the socket 9, then separate the connecting ring 8 from the bottom groove of the sleeve 4, insert the new connecting ring 8 into the bottom of the sleeve 4, and finally turn the fastening bolt 10 to insert the fastening bolt 10 into the groove of the socket 9. The operation is simple and convenient.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mechanical seal stationary ring installation tool, comprising an installation ring (1), characterized in that: The bottom end of the mounting ring (1) contacts a disc (2), the top end of the disc (2) is provided with an adjustment mechanism, the inner wall of the mounting ring (1) is detachably equipped with a stationary ring (6), the top end of the stationary ring (6) contacts an O-ring (7), the top end of the O-ring (7) is provided with a sleeve (4), and the inner wall of the sleeve (4) is provided with a replacement component; The adjustment mechanism includes a connecting pipe (3), the outer wall of which is threaded with a nut (5), and the connecting pipe (3) is fixedly connected to the top of the disc (2).

2. The mechanical seal stationary ring installation tool according to claim 1, characterized in that: The replacement component includes a connecting ring (8), which is detachably mounted on the inner wall of the sleeve (4). The outer wall of the connecting ring (8) has an insertion hole (9), and a fastening bolt (10) is inserted into the inner wall of the insertion hole (9).

3. The mechanical seal stationary ring installation tool according to claim 2, characterized in that: The fastening bolt (10) is threaded through and connected to the inner wall of the sleeve (4).

4. The mechanical seal stationary ring installation tool according to claim 2, characterized in that: The fastening bolts (10) are provided in two sets, and the two sets of fastening bolts (10) are arranged symmetrically.

5. A mechanical seal stationary ring installation tool according to claim 1, characterized in that: The O-ring (7) is fixedly connected to the bottom end of the connecting ring (8).

6. The mechanical seal stationary ring installation tool according to claim 1, characterized in that: The bottom end of the nut (5) is in contact with the top end of the sleeve (4).

7. The mechanical seal stationary ring installation tool according to claim 1, characterized in that: The bottom end of the nut (5) is in contact with the top end of the sleeve (4).

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