Auxiliary replacement tool for Glyd sealing ring of piston rod

Abstract

The utility model belongs to the technical field of installation and maintenance of sealing elements, and particularly discloses an auxiliary replacement tool for a Glyd sealing ring of a piston rod, which comprises a circular ring, an opening is arranged on one side of the circular ring, two connecting plates are arranged at the opening of the circular ring, a screw movably penetrates between the two connecting plates, and one end of the screw is in threaded connection with a nut. Two holding assemblies are arranged on the circular ring and are symmetrically distributed with the circle center as the center. The whole piston is surrounded by the circular ring, the Glyd sealing ring is embedded into the piston sealing groove through extrusion of external force and completely attached, then the whole auxiliary tool and the piston rod are moved to the position of a cylinder barrel inner hole of the balance oil cylinder together through the holding assembly, and after the circular ring is aligned with the cylinder barrel inner hole, the piston rod is pushed downwards into the cylinder barrel inner hole. In the process, the Glyd sealing ring is always extruded in the piston sealing groove by the circular ring; through the auxiliary tool, the piston sealing element of the balance cylinder of the roughing mill can be quickly replaced and mounted, so that the maintenance efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to seal installation maintenance technical field, concretely relates to a kind of auxiliary replacement tool of piston rod grommet. BACKGROUND

[0002] The roughing mill balance oil cylinder generally adopts grommet as sealing piece to carry out sealing work, in the process of replacing sealing piece, due to the special installation position, new grommet needs to be sleeved from oil cylinder piston rod to piston sealing groove, grommet is pulled during installation, which leads to the size of grommet after installation, grommet inside cannot be attached with piston sealing groove, need to wait for grommet to slowly recover to original size, piston rod installation can be carried out.

[0003] But grommet recovery time is long, if only rely on self elasticity to recover, generally need more than 10h time, during balance oil cylinder is in shutdown state, after grommet is completely attached with piston sealing groove, next step work can be carried out, long replacement time can lead to maintenance, production efficiency is low. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of auxiliary replacement tool of piston rod grommet to solve grommet recovery time is long, if only rely on self elasticity to recover, generally need more than 10h time, during balance oil cylinder is in shutdown state, after grommet is completely attached with piston sealing groove, next step work can be carried out, long replacement time can lead to maintenance, production efficiency is low.

[0005] To achieve the above-mentioned purpose, the utility model provides basic scheme as follows: a kind of auxiliary replacement tool of piston rod grommet, including annular, the side of annular is opened with opening, two connecting plates are arranged at the opening of annular, two connecting plates are movably penetrated with screw rod between two connecting plates, one end of screw rod is threadedly connected with nut, two gripping assemblies are arranged on annular, two gripping assemblies are symmetrically distributed with center as center.

[0006] The working principle of the utility model is that: the entire piston is circled by the annular, the distance between the two connecting plates is reduced by rotating the nut, the grommet is embedded into the piston sealing groove by external force, and the grommet is completely attached, then the entire auxiliary tool is moved into the cylinder bore of the balance oil cylinder together with the piston rod by using the gripping assembly, after the annular is aligned with the cylinder bore, the piston rod is pushed into the cylinder bore, and the grommet is always squeezed in the piston sealing groove by the annular during the process.

[0007] The beneficial effects of this utility model are as follows: the replacement and installation of piston seals for the balance cylinder of the roughing mill can be completed quickly through this auxiliary tool, thereby improving maintenance efficiency and optimizing the quality indicators of maintenance work, thus ensuring the stability of the roughing mill equipment.

[0008] Option 2, a preferred option of the basic design, includes a gripping assembly comprising a sleeve rod fixed to a ring. A movable rod is threaded onto the sleeve rod, with one end of the movable rod inside the sleeve rod abutting against the end of the sleeve rod. In use, the movable rod is unscrewed to increase the gripping range. Once the end of the movable rod reaches the end of the sleeve rod, it stops and cannot be unscrewed further, ensuring the movable rod will not detach from the sleeve rod. This telescopic design reduces the storage area when storing the tool, saving storage space.

[0009] Option 3, a preferred option of Option 2, features symmetrical through holes at the outer end of the movable rod. These through holes allow the tool to be hung on a wall or other location, further enhancing its convenience for storage and placement.

[0010] Option four, the preferred option among the basic options, uses carbon steel for both the ring and the gripping components. Carbon steel has high strength and a certain degree of toughness, and its processing technology is simple, resulting in low operating costs.

[0011] Option 5, a preferred option of the basic design, features anti-slip textures on the inner wall of the ring. Without applying any external force, the anti-slip textures provide some protection to the piston rod when it is moved, but do not inhibit piston movement when the piston rod is pushed down.

[0012] Option six, an optimal choice from the basic option, features a limiting ring at the bottom of the ring. This limiting ring restricts the movement of the cylinder bore, preventing the auxiliary tool from moving during the piston rod push-down process and ensuring maintenance quality. Attached Figure Description

[0013] Figure 1 This is a perspective view of an auxiliary replacement tool for a piston rod Glyd seal ring according to this utility model;

[0014] Figure 2 This is a perspective view of another angle of an auxiliary replacement tool for a piston rod Glyd seal ring according to this utility model;

[0015] Figure 3 This is a perspective view of the moving rod after it has been unscrewed in an auxiliary replacement tool for a piston rod Glyd seal ring according to this utility model. Detailed Implementation

[0016] The present invention will be further described in detail below through specific embodiments:

[0017] The reference numerals in the accompanying drawings of the instruction manual include: 1. Ring, 2. Connecting plate, 3. Screw, 4. Nut, 5. Grip assembly, 501. Sleeve rod, 502. Moving rod, 6. Through hole, 7. Anti-slip texture, 8. Limiting ring.

[0018] Example

[0019] The basic implementation examples are as follows: Figure 1 To be continued Figure 3 As shown: An auxiliary replacement tool for a piston rod Glyd seal ring includes a ring 1 with an opening on one side. Two connecting plates 2 are provided at the opening of the ring 1, and a screw 3 passes through the two connecting plates 2. A nut 4 is threaded to one end of the screw 3. Two gripping components 5 are provided on the ring 1. Both the ring 1 and the gripping components 5 are made of carbon steel. The two gripping components 5 are symmetrically distributed around the center of the ring. Each gripping component 5 includes a sleeve rod 501, which is fixedly connected to the ring 1. A moving rod 502 is threaded onto the sleeve rod 501. One end of the moving rod 502 inside the sleeve rod 501 abuts against the end of the sleeve rod 501. The other end of the moving rod 502 outside the sleeve rod 501 has symmetrical through holes 6. Anti-slip textures 7 are provided on the inner wall of the ring 1, and a limiting ring 8 is provided at the bottom of the ring 1.

[0020] The implementation method of this embodiment is as follows:

[0021] When overhauling and replacing the piston seal of the roughing mill balance cylinder, first remove the old Glyd ring, then insert the new Glyd ring into the piston sealing groove. Next, place this device on the piston rod and use the curvature of the ring 1 to limit the deformation of the new Glyd ring. Then, rotate the nut 4 to reduce the distance between the two connecting plates 2. At this point, the ring 1 is completely in contact with the piston, and the new Glyd ring is squeezed by external force and fully embedded in the piston sealing groove. Then, rotate the moving rod 502 outwards, extending the gripping range. Hold the gripping components 5 at both ends, use the ring 1 to drive the piston rod to move to the balance cylinder and align it with the inner hole of the balance cylinder. Place the limiting ring 8 against the inner hole of the cylinder for limiting, then push the piston rod downward to enter the inner hole of the cylinder. During the process, the Glyd seal ring is always pressed into the piston sealing groove by the ring 1. After the piston rod is fully inside the inner hole of the cylinder, remove the device from the balance cylinder, then rotate the moving rod 502 to screw the moving rod 502 into the sleeve rod 501. Finally, use the through hole 6 to hang the device for storage.

[0022] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An auxiliary replacement tool for a piston rod Glyd seal ring, characterized in that, Includes a ring (1), with an opening on one side of the ring (1), and two connecting plates (2) provided at the opening of the ring (1). A screw (3) is movably passed between the two connecting plates (2), and a nut (4) is threaded to one end of the screw (3). Two gripping components (5) are provided on the ring (1), and the two gripping components (5) are symmetrically distributed with the center of the ring as the center.

2. The auxiliary replacement tool for a piston rod Glyd seal ring according to claim 1, characterized in that, The gripping assembly (5) includes a sleeve (501), which is fixedly connected to the ring (1). A movable rod (502) is threadedly connected to the sleeve (501), and one end of the movable rod (502) located inside the sleeve (501) abuts against the end of the sleeve (501).

3. The auxiliary replacement tool for a piston rod Glyd seal ring according to claim 2, characterized in that, The movable rod (502) has symmetrical through holes (6) at one end outside the sleeve rod (501).

4. The auxiliary replacement tool for a piston rod Glyd seal ring according to claim 1, characterized in that, Both the ring (1) and the gripping component (5) are made of carbon steel.

5. The auxiliary replacement tool for a piston rod Glyd seal ring according to claim 1, characterized in that, The inner wall of the ring (1) is provided with anti-slip texture (7).

6. The auxiliary replacement tool for a piston rod Glyd seal ring according to claim 1, characterized in that, The bottom of the ring (1) is provided with a limiting ring (8).

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