Simple and convenient piston glyd ring combined seal mounting device

Abstract

The invention relates to the technical field of hydraulic cylinder piston sealing ring installation and maintenance equipment, and discloses a simple and convenient piston glyd ring combined sealing installation device which is characterized by comprising a conical cylinder guide table and a pressing ring expansion sleeve, the left end of the conical cylinder guide table is a hollow cylinder, and an inner hole of the hollow cylinder is matched with the outer diameter of a piston; the length of the hollow cylinder is equal to the length of the side, provided with the sealing ring, of the piston, the right end of the conical cylinder guide table is of a circular-truncated-cone-shaped structure, the left end of the pressing ring expansion sleeve is of a taper-variable conical shell structure, and the right end of the pressing ring expansion sleeve is of a step circular-ring-shaped structure used for evenly applying force. When the Glyd ring sealing device is used, the O-shaped ring of the Glyd ring is firstly arranged in the sealing groove along the conical shaft of the conical cylinder guide table, then the Glyd ring is slowly pushed into the sealing groove through the pressing ring expansion sleeve, and finally the Glyd ring is tightened and fixed through the inner taper of the pressing ring expansion sleeve. The device is simple in structure and convenient to operate, the sealing performance of the Glyd ring combined seal can be improved, and the safety performance and the supporting capacity of the piston are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of hydraulic cylinder seal installation technology, and particularly to a piston Glyd ring combination seal installation device. Technical Background

[0002] Glyd ring seals are crucial sealing components in hydraulic cylinder pistons, typically composed of a polytetrafluoroethylene (PTFE) rectangular ring and a rubber O-ring. The O-ring provides elastic preload for sealing, while the PTFE ring provides wear resistance. Compared to O-rings, PTFE rings are harder, making installation extremely inconvenient. Traditional methods require heating the PTFE Glyd ring to a certain temperature, deforming its inner diameter using thermal expansion and contraction, and then inserting it into the sealing groove before tightening it with a clamp. This method is cumbersome, and the difficulty in controlling the heating temperature leads to excessive material deformation, directly affecting sealing and support performance. Another method involves workers forcibly pulling the Glyd ring into the sealing groove using a pull rod or oil seal hook. This method results in uneven stress on the Glyd ring, making it prone to breakage, and the hardness of PTFE requires significant external force. Therefore, there is an urgent need to design a simple and convenient piston Glyd ring combination sealing device to meet production needs. Summary of the Invention

[0003] The purpose of this invention is to provide a simple and convenient glyph combination sealing installation device to solve the problems existing in the above-mentioned background art.

[0004] To solve the above problems, the present invention provides the following technical solution: a simple and convenient glyph combination sealing installation device, including a conical guide platform and a pressure ring expansion sleeve. The left end of the conical guide platform adopts a hollow cylindrical structure and the right end adopts a frustum-shaped structure. The left end of the pressure ring expansion sleeve adopts a conical shell structure and the right end adopts a stepped annular structure.

[0005] Preferably, the hollow cylinder at the left end of the conical guide is installed on one side of the piston, the end face of the hollow cylinder is aligned with the end face of the Glyd ring sealing groove, the bottom surface of the hollow cylinder is connected to the end face of the piston, and limits the position of the conical guide.

[0006] Preferably, the right end of the conical guide platform adopts a frustum-shaped structure and maintains a certain taper, and a Glyd ring combination seal is fitted on the conical shaft.

[0007] Preferably, the left end of the pressure ring expansion sleeve adopts a variable taper conical shell structure, and the right end of the pressure ring expansion sleeve adopts a stepped ring structure. The stepped ring structure is used to apply force evenly when pushing the Glyd ring combination seal, and the variable taper conical shell structure is used to expand and tighten when pushing the Glyd ring combination seal.

[0008] Preferably, the outer wall of the conical guide plate is coated with hydraulic lubricating oil during use.

[0009] Preferably, the steps for using this Glyd ring combination sealing installation device are as follows:

[0010] Y1. Place the hollow cylindrical shaft of the conical guide plate onto the piston for installing the Glyd ring combination seal, remove the O-ring of the Glyd ring and insert it onto the conical shaft of the conical guide plate, apply lubricating oil to the conical shaft, and push the O-ring into the sealing groove along the taper.

[0011] Y2. Place the Glyd ring onto the outer taper shaft of the conical guide plate, and use the pressure ring expansion sleeve to push the Glyd ring evenly and slowly. During the force application, the pressure ring expansion sleeve will expand with the change of the outer taper, and at the same time, the Glyd ring will undergo slight elastic deformation and finally be pushed into the sealing groove.

[0012] Y3. Remove the conical guide plate and use the inner conical sleeve of the pressure ring expansion sleeve to tighten the Glyd ring combination seal. The Glyd ring will slowly tighten under the action of the taper of the pressure ring expansion sleeve and finally stick to the O-ring to complete the installation. Remove the pressure ring expansion sleeve. At this time, one work process is completed.

[0013] Compared with existing technologies, this invention has the following advantages: the stepped structure increases the force application area, ensuring uniform force distribution during the installation of the Glyd ring combination seal and avoiding breakage caused by uneven local force distribution; the expansion sleeve structure not only utilizes the slight elastic deformation of the material to achieve expansion but also allows for tightening after installation; this mechanism is not only simple in structure, easy to operate, and low in cost, but also greatly improves the sealing performance and safety of the Glyd ring combination seal, thereby increasing production efficiency. Attached Figure Description

[0014] Figure 1 This is the front view of the Gladley ring combination sealing installation device.

[0015] Figure 2 This is a cross-sectional view after the Gladley ring combination seal is installed.

[0016] Figure 3 This is a schematic diagram of the sealing and installation process of the Glyd ring.

[0017] In the diagram: 1-piston; 101-sealing groove; 2-conical guide plate; 3-O-ring; 4-Glyd ring; 5-pressure ring expansion sleeve. Detailed Implementation

[0018] The technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without inventive effort are within the scope of protection of this invention.

[0019] In the description of this invention, it should be noted that the terms "left end", "right end", "bottom end", "side", "one end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0020] Example: As attached Figure 1-3 As shown, the present invention provides a simple and convenient piston Glyd ring combination sealing installation device, including a conical guide 2 and a pressure ring expansion sleeve 4. The left end of the conical guide 2 adopts a hollow cylindrical structure and the right end adopts a frustum-shaped structure. The left end of the pressure ring expansion sleeve adopts a variable taper conical shell structure and the right end adopts a stepped ring structure. Hydraulic lubricating oil is applied to the frustum-shaped taper shaft during use.

[0021] To explain the usage of this device in detail, the present invention will provide an installation description in conjunction with the hydraulic cylinder piston. The specific implementation process is as follows:

[0022] Y1. Before use, check the integrity of the device, wipe it clean and place it neatly to avoid unnecessary impurities and foreign objects entering the sealing groove and affecting the sealing performance.

[0023] Y2. First, put the hollow cylindrical shaft 201 of the conical guide plate onto the piston 1 that is installing the Glyd ring combination seal. Then, remove the O-ring 4 of the Glyd ring and put it onto the conical shaft 202 of the conical guide plate. It can be smoothly installed into the sealing groove 101 along the taper.

[0024] Y3. Place the Glyd ring into the outer taper shaft 202 of the tapered guide plate 2, apply hydraulic oil to the outer taper shaft 202, and slowly push the Glyd ring with uniform force using the pressure ring expansion sleeve 5. During the force application, the pressure ring expansion sleeve will expand with the change of the outer taper, and at the same time, the Glyd ring will be pushed into the sealing groove 101 under uniform force.

[0025] Y4. Remove the conical guide plate 2, and use the inner conical sleeve of the pressure ring expansion sleeve 5 to tighten the Glyd ring combination seal in the sealing groove. The Glyd ring is slowly tightened under the action of the taper of the pressure ring expansion sleeve, and finally it is stuck to the O-ring to complete the installation. Remove the pressure ring expansion sleeve, and one work process is completed.

[0026] For those skilled in the art, the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A simple and convenient piston-Glydring combination sealing installation device, characterized in that, It includes a conical guide platform (2) and a pressure ring expansion sleeve (5). The left end of the conical guide platform adopts a cylindrical structure and the right end adopts a frustum structure. The pressure ring expansion sleeve adopts a conical shell structure with variable taper. The right end of the pressure ring expansion sleeve adopts a stepped ring structure to increase the force-bearing area and apply force evenly.

2. The simple and convenient piston Glydring combination sealing installation device according to claim 1, characterized in that: The left end of the cone-shaped guide platform (2) adopts a hollow cylindrical structure. The inner hole of the hollow cylinder is matched with the piston for installing the Glyd ring. The length of the inner hole of the hollow cylinder is equal to the length of the side of the piston for installing the Glyd ring. The right end of the cone-shaped guide platform (2) adopts a frustum-shaped structure, and the Glyd ring is fitted on the cone-shaped frustum.

3. The simple and convenient piston Glydring combination sealing installation device according to claim 1, characterized in that: The left end of the pressure ring expansion sleeve (5) adopts a hollow conical shell structure. A portion of rectangular strips are evenly cut off from the conical surface of the hollow conical shell to make the hollow conical shell into a conical shell with a variable taper, which is used for shrinking and expanding when the Glyd ring is installed. The right end of the pressure ring expansion sleeve adopts a stepped ring structure. The stepped structure increases the force-bearing area when force is applied, and at the same time ensures that the force is uniform when force is applied.

4. A simple and convenient piston Glydring combination sealing installation device according to claims 1-3, characterized in that... The steps for using this device are as follows: Y1. First, put the hollow cylindrical shaft of the conical guide plate onto the piston that is installing the Glyd ring combination seal. Then, remove the O-ring of the Glyd ring and put it onto the conical shaft of the conical guide plate (2). Following the taper, it can be smoothly installed into the sealing groove. Y2. Place the Glyd ring into the outer taper shaft of the tapered guide plate (2), apply hydraulic oil to the outer taper shaft, and slowly push the Glyd ring by applying force evenly to the pressure ring expansion sleeve. During the force application process, the pressure ring expansion sleeve will expand with the change of the outer taper, and at the same time, the Glyd ring will undergo slight elastic deformation and finally be pushed into the sealing groove. Y3. Remove the conical guide plate (2), and use the inner conical sleeve of the pressure ring expansion sleeve (5) to tighten the Glyd ring combination seal in the sealing groove. The Glyd ring is slowly tightened under the action of the taper of the pressure ring expansion sleeve, and finally it is stuck to the O-ring to complete the installation. Remove the pressure ring expansion sleeve, and at this time, one installation process is completed.

Images