O-shaped sealing ring packing bonding method and special tool

Abstract

The invention discloses an O-shaped sealing ring packing bonding method and a special tool. Bonding is conducted through an upper fixed pressure block, a lower fixed pressure block, an upper pressing block and a lower pressing block; and O-shaped sealing packing to be bonded is put into first packing grooves formed in the lower fixed pressure block, and O-shaped sealing packing heads are put into third packing grooves formed in the lower pressing block and fixedly connected with the upper fixed pressure block and the lower fixed pressure block. The two O-shaped sealing ring packing heads are aligned and smeared with glue. Fourth packing grooves formed in the upper pressing block are pressed on the third packing grooves in the lower pressing block to clamp the portions to be bonded. The special tool comprises a base (1). The lower fixed pressure block (2) is arranged above the base (1). The lower pressing block (3) is arranged in the middle of the lower fixed pressure block (2). The upper fixed pressure block (4) is arranged above the lower fixed pressure block (2). The upper pressing block (5) is arranged above the lower pressing block (3). The special tool is good in bonding effect, long in service life, short in bonding time, easy to operate and the like.

Description

Technical field [0001] The present invention involves a bonding method and tools, especially a type of O -sealing circle root bonding method and special tools. Background technique [0002] The range of O -type sealing rings is widely used, and it plays a role in sealing medium on many mechanical and hydraulic equipment, such as oil and gas.However, the O -type sealing ring produced by the factory is standard parts, which cannot meet the requirements of some special or large equipment on the sealing ring, so for these irregular O -type sealing rings, you need to bond on the spot.However, most of the plate root bonding method is to cut the plate root 90 ° or obliquely cut into 45 ° bonding., Coupled with the high temperature environment, the joints are easy to get off; if it is cut into 45 ° bonding, the problem of squeezing the cut surface is solved.Two plate heads are fixed with bonding, but the root head needs a long period of relatively stable and larger pressure when bonding,...

AI Technical Summary

Problems solved by technology

However, the O-rings produced by the factory are all standard parts, which cannot meet the requirements of some special or large-scale equipment for the sealing rings. Therefore, for these O-rings that cannot be customized, they need to be bonded on site.

However, most of the packing bonding methods are to cut the packing at 90° or obliquely at 45° for bonding. If the packing is cut at 90°, when the cross-section and the force-bearing surface are at 90°, the cross-section will be squeezed for a long time , coupled with the high temperature environment, the joint is easy to disengage; if it is cut at 45° and bonded, the problem of force extrusion on the cut surface is solved, but when it is bonded at 45°, the existing method is to manually separate the parts that need to be bonded The two packing heads are fixedly bonded. However, the bonding of the packing heads requires a relatively stable and high pressure for a long time, while the hand can only provide a small extrusion force in a short time, and the hand It is difficult to keep a movement unchanged for a long time, so the stability of manual bonding is poor, it is difficult to completely bond the contact surface of the packing head, making the bonding effect poor, and it is easy to break and come off after a period of use , the service life is shorter, and the time required for the bonding process is also long

Therefore, the existing bonding methods and tools have problems such as poor packing bonding effect, short service life, long bonding process, and difficult operation.

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