Hydraulic oil cylinder rubber sealing ring mounting device

Abstract

The utility model belongs to the technical field of hydraulic oil cylinders, and relates to a hydraulic oil cylinder rubber sealing ring mounting device. Comprising a device body (1), the device body (1) is of a pipe fitting structure, the device body (1) comprises a large-diameter part (2) and a small-diameter part (3), a limiting face (4) is arranged between the large-diameter part (2) and the small-diameter part (3), and the inner diameter of the small-diameter part (3) is larger than the diameter of a pull rod end head (7) of an oil cylinder pull rod (5). The installation device for the rubber sealing ring of the hydraulic oil cylinder is simple in structure, the rubber sealing ring can be conveniently and rapidly installed in a sealing groove of an oil cylinder pull rod, damage to the rubber sealing ring is avoided, and labor intensity during installation is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of hydraulic cylinder technology, and more specifically, it relates to a hydraulic cylinder rubber seal ring installation device. Background Technology

[0002] The can lid system in the vehicle has a lid-sealing system, each with multiple hydraulic cylinders. These cylinders extend and retract to push a rotating arm, opening and closing the can lid. Under adverse conditions such as high temperatures and impacts, the rubber seals in the sealing grooves of the hydraulic cylinder rods are easily damaged, leading to oil return and pressure release, causing the lid to open. Currently, the repair solution for the cylinders in the work area involves using screwdrivers or similar tools to remove the damaged rubber seals and then forcibly enlarging the diameter of the rubber seals to fit into the sealing grooves of the cylinder rods. Problems and disadvantages of the existing technology: 1. Using screwdrivers or similar sharp objects to assemble the rubber seals can easily damage the cylinder rod surface, disrupting its smoothness; 2. Using screwdrivers or similar sharp objects to assemble the rubber seals can easily cause irreversible deformation damage, affecting its service life; 3. Using screwdrivers or similar sharp objects to assemble the rubber seals poses a significant safety hazard and is detrimental to safe operation; 4. When using screwdrivers or similar sharp objects for assembly, it is difficult to quickly insert the rubber seals into the sealing grooves, resulting in time-consuming, labor-intensive work.

[0003] Existing technology includes a specification titled "A Hydraulic Cylinder" with publication number CN104747528A, which relates to commonly used equipment in engineering machinery, particularly a hydraulic cylinder. This hydraulic cylinder comprises a cylinder barrel, a cylinder bottom, a guide sleeve, a piston rod, and a piston. A first sealing ring is provided between the guide sleeve and the cylinder barrel, and a first dynamic sealing structure is provided between the piston rod and the guide sleeve. The first dynamic sealing structure includes an O-ring elastomer and a subsequent YX-shaped sealing ring. A sealing element mounting groove is provided between the piston and the cylinder barrel, and a second sealing ring and a baffle are provided within the mounting groove. A through hole is provided on the baffle. In this invention, the first dynamic sealing structure includes an O-ring elastomer and a subsequent YX-shaped sealing ring, resulting in a more significant dynamic sealing effect between the piston rod and the guide sleeve. The through hole on the baffle of the second sealing ring facilitates fluid outflow and prevents fluid accumulation from squeezing the sealing element out of the sealing mounting groove. This technology does not address the technical problems or solutions of this application. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a hydraulic cylinder rubber seal installation device that is simple in structure, can conveniently and quickly install the rubber seal ring in the sealing groove of the cylinder tie rod, avoid damage to the rubber seal ring, and reduce the labor intensity during installation, in order to address the shortcomings of the existing technology.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] This utility model is a hydraulic cylinder rubber seal ring installation device, including a device body, which is a pipe structure. The device body includes a large diameter part and a small diameter part, and a limiting surface is provided between the large diameter part and the small diameter part. The inner diameter of the small diameter part is larger than the diameter of the cylinder tie rod.

[0007] A sealing groove is provided around the upper edge of the cylinder tie rod.

[0008] The hydraulic cylinder tie rod has a tie rod end head, the diameter of which is smaller than the diameter of the hydraulic cylinder tie rod.

[0009] The inner diameter of the small-diameter section of the device body is larger than the diameter of the end of the pull rod.

[0010] The outer surface of the small-diameter portion of the device body is a smooth surface.

[0011] The outer diameter of the small-diameter part of the device body is smaller than the inner diameter of the rubber sealing ring, and the inner diameter of the rubber sealing ring is smaller than the outer diameter of the large-diameter part.

[0012] The main body of the device is made of seamless steel pipe, and the small-diameter part is machined into a smooth surface by a milling machine.

[0013] The limiting surface of the device body is perpendicular to the center line of the device body.

[0014] The large-diameter and small-diameter portions of the device body are integral structures; or, the large-diameter and small-diameter portions of the device body are structures welded together from hollow tubes of different diameters.

[0015] The working principle and beneficial effects of this utility model are as follows:

[0016] The hydraulic cylinder rubber seal ring installation device of this utility model comprises a device body with a tubular structure, including a large-diameter section and a small-diameter section. The large-diameter section and the small-diameter section of the circular tube structure have different outer diameters, forming a limiting surface between them. This limiting surface serves to limit the rubber seal ring fitted onto the small-diameter section, preventing it from falling off from the other end. The large-diameter section is for operator handling. The rubber seal ring can be fitted onto the outer ring of the small-diameter section. A sealing groove is provided around the circumference of the cylinder rod. During installation, the rubber seal ring needs to be installed into the sealing groove on the cylinder rod. Since the inner diameter of the small-diameter section of the device body is larger than the diameter of the rod end, the rod end can be inserted into the small-diameter section. The installation principle and process of the rubber seal ring are as follows: Apply hydraulic oil to the surface of the rubber seal ring and the surface of its small diameter section. Slowly slide the rubber ring into the smooth surface of the small diameter section. Then, insert the end of the pull rod into the small diameter section, ensuring the end of the small diameter section is flush with the end of the cylinder pull rod. Apply force to the rubber seal ring, pushing it towards one end of the cylinder pull rod. Once it reaches a certain position, the rubber seal ring falls into the sealing groove, completing the installation. Then, disassemble the cylinder pull rod from the device. The entire installation process is simple, labor-saving, and will not damage the rubber seal ring. Attached Figure Description

[0017] The following is a brief explanation of the contents depicted in the accompanying drawings and the markings therein:

[0018] Figure 1 This is a schematic diagram of the hydraulic cylinder rubber seal ring mounting device of this utility model;

[0019] Figure 2 This is a schematic diagram of the hydraulic cylinder rubber seal ring mounting device of this utility model;

[0020] The following are labeled in the attached diagram: 1. Device body; 2. Large diameter part; 3. Small diameter part; 4. Limiting surface; 5. Hydraulic cylinder rod; 6. Sealing groove; 7. Rod end; 8. Rubber sealing ring. Detailed Implementation

[0021] The following description, with reference to the accompanying drawings, provides a more detailed explanation of the specific embodiments of this utility model, including the shape and structure of each component, the relative positions and connections between the parts, the functions and working principles of each part:

[0022] As attached Figure 1 Appendix Figure 2As shown, this utility model is a hydraulic cylinder rubber seal ring installation device, including a device body 1, which is a tubular structure. The device body 1 includes a large-diameter portion 2 and a small-diameter portion 3, with a limiting surface 4 provided between the large-diameter portion 2 and the small-diameter portion 3. The inner diameter of the small-diameter portion 3 of the device body 1 is larger than the diameter of the end head 7 of the pull rod. A sealing groove 6 is provided around the upper edge of the cylinder pull rod 5. This invention addresses the shortcomings of existing technologies by proposing an improved technical solution. In the structural design, the device body 1, which is made of a single hollow pipe, can be fabricated from two hollow pipes of different outer diameters. The resulting device body 1 includes a large-diameter section 2 and a small-diameter section 3. That is, the large-diameter section 2 and the small-diameter section 3 of the circular pipe structure have different outer diameters. A limiting surface 4 is formed between the large-diameter section 2 and the small-diameter section 3. The limiting surface 4 can limit the rubber sealing ring 8 fitted onto the small-diameter section 3, preventing it from falling off from the other end after installation. The large-diameter section 2 is used for hand-held operation by the operator. The rubber sealing ring can be fitted onto the outer ring of the small-diameter section 3. A sealing groove 6 is provided around the circumference of the hydraulic cylinder rod 5. When installing the rubber sealing ring 8, it needs to be installed into the sealing groove 6 on the hydraulic cylinder rod 5. Since the inner diameter of the small-diameter section 3 of the device body 1 is larger than the diameter of the rod end 7, the rod end 7 can be inserted into the small-diameter section 3. The installation principle and process of the rubber sealing ring 8 are as follows: Apply hydraulic oil to the surface of the rubber sealing ring 8 (rubber ring) and the surface of the small diameter part 3. Slowly slide the rubber ring 8 into the smooth surface of the small diameter part 3. Then, insert the end 7 of the pull rod into the small diameter part 3, with the end of the small diameter part 3 adhering to the end of the cylinder pull rod 5. Apply force to the rubber sealing ring 8, pushing it towards one end of the cylinder pull rod 5. After moving to a certain position, the rubber sealing ring 8 falls into the sealing groove 6, completing the installation of the rubber sealing ring 8. Then, separate the cylinder pull rod 5 from the device. The entire installation process is simple and labor-saving, and will not damage the rubber sealing ring 8, ensuring its service life. The hydraulic cylinder rubber sealing ring installation device described in this utility model has a simple structure, enabling convenient and quick installation of the rubber sealing ring in the sealing groove of the cylinder pull rod, avoiding damage to the rubber sealing ring and reducing the labor intensity during installation.

[0023] The hydraulic cylinder tie rod 5 is provided with a tie rod end head 7, the diameter of which is smaller than the diameter of the hydraulic cylinder tie rod 5. This structure, where the diameter of the tie rod end head 7 is smaller than the diameter of the hydraulic cylinder tie rod 5, facilitates the insertion of the tie rod end head 7 into the inner ring of the smaller diameter section before installing the rubber sealing ring, thus achieving positioning of the device body and the hydraulic cylinder tie rod 5 and facilitating the installation of the rubber sealing ring.

[0024] The outer surface of the small-diameter portion 3 of the device body 1 is a smooth surface. This smooth surface design facilitates the movement of the rubber sealing ring 8 and prevents scratches on its surface, thus avoiding damage during movement.

[0025] The outer diameter of the small-diameter portion 3 of the device body 1 is smaller than the inner diameter of the rubber sealing ring 8, and the inner diameter of the rubber sealing ring 8 is smaller than the outer diameter of the large-diameter portion 2. In this structure, the smaller outer diameter of the small-diameter portion 3 facilitates easy and effortless fitting of the rubber sealing ring onto the small-diameter portion. The smaller inner diameter of the rubber sealing ring 8 prevents it from falling off. The outer diameter of the small-diameter portion 3 is equal to the outer diameter of the hydraulic cylinder rod 5, allowing for easy movement of the rubber sealing ring 8.

[0026] The main body 1 of the device is constructed from a seamless steel pipe, and the small-diameter portion 3 is machined to a smooth surface using a milling machine. This structure, made from seamless steel pipe and machined using a milling machine, effectively improves the smoothness of the surface of the small-diameter portion.

[0027] The limiting surface 4 of the device body 1 is perpendicular to the center line of the device body 1. The large-diameter portion 2 and the small-diameter portion 3 of the device body 1 are an integral structure; or, the large-diameter portion 2 and the small-diameter portion 3 of the device body 1 are welded together from hollow tubes of different diameters. In the above structures, the device body can be machined as a single piece or machined separately and then welded together.

[0028] The hydraulic cylinder rubber seal ring installation device of this utility model is structurally designed so that the device body 1, which is made of a tubular structure, can be made from a single hollow tube or from two hollow tubes with different outer diameters. The device body 1 includes a large-diameter portion 2 and a small-diameter portion 3. The large-diameter portion 2 and the small-diameter portion 3 of the circular tube structure have different outer diameters. A limiting surface 4 is formed between the large-diameter portion 2 and the small-diameter portion 3. The limiting surface 4 can limit the rubber seal ring 8 fitted onto the small-diameter portion 3, preventing it from falling off from the other end. The large-diameter portion 2 is used for hand-held operation by the operator. The rubber seal ring can be fitted onto the outer ring of the small-diameter portion. A sealing groove 6 is provided around the circumference of the cylinder rod 5. When installing the rubber seal ring 8, it needs to be installed into the sealing groove 6 on the cylinder rod 5. Since the inner diameter of the small-diameter portion 3 of the device body 1 is larger than the diameter of the rod end 7, the rod end 7 can be inserted into the small-diameter portion 3. The installation principle and process of the rubber sealing ring 8 are as follows: Apply hydraulic oil to the surface of the rubber sealing ring 8 and the surface of the small diameter part 3. Slowly slide the rubber ring 8 into the smooth surface of the small diameter part 3. Then, insert the end 7 of the pull rod into the small diameter part 3, with the end of the small diameter part 3 adhering to the end of the hydraulic cylinder pull rod 5. Apply force to the rubber sealing ring 8, pushing it towards one end of the hydraulic cylinder pull rod 5. After moving to a certain position, the rubber sealing ring 8 falls into the sealing groove 6, completing the installation of the rubber sealing ring 8. Then, separate the hydraulic cylinder pull rod 5 from the device. The entire installation process is simple, labor-saving, and will not damage the rubber sealing ring.

[0029] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A hydraulic cylinder rubber seal ring mounting device, characterized by: The device body (1) is a pipe structure, which comprises a large-diameter part (2) and a small-diameter part (3), and a limiting surface (4) is arranged between the large-diameter part (2) and the small-diameter part (3), and the inner diameter of the small-diameter part (3) is greater than the diameter of the rod end (7) of the oil cylinder rod (5).

2. The hydraulic cylinder rubber seal installation device of claim 1, wherein: The oil cylinder rod (5) is provided with a sealing groove (6) along a circumference.

3. The hydraulic cylinder rubber seal installation device according to claim 1 or 2, characterized in that: One end of the oil cylinder rod (5) is provided with a rod end (7), and the outer diameter of the small-diameter part (3) of the device body (1) is equal to the outer diameter of the oil cylinder rod (5).

4. The hydraulic cylinder rubber seal installation device of claim 3, wherein: The inner diameter of the small-diameter part (3) of the device body (1) is greater than the diameter of the rod end (7).

5. The hydraulic cylinder rubber seal installation device according to claim 1 or 2, characterized in that: The outer surface of the small-diameter part (3) of the device body (1) is a smooth surface.

6. The hydraulic cylinder rubber seal installation device of claim 1 or 2, wherein: The outer diameter of the small-diameter part (3) of the device body (1) is less than the inner diameter of the rubber sealing ring (8), and the inner diameter of the rubber sealing ring (8) is less than the outer diameter of the large-diameter part (2).

7. The hydraulic cylinder rubber seal installation device of claim 1 or 2, wherein: The device body (1) is made of a seamless steel pipe, and the small-diameter part (3) is processed by a milling machine to be a smooth surface.

8. The hydraulic cylinder rubber seal installation device of claim 1 or 2, wherein: The limiting surface (4) of the device body (1) is perpendicular to the center line of the device body (1).

9. The hydraulic cylinder rubber seal installation device of claim 1 or 2, wherein: The large-diameter part (2) and the small-diameter part (3) of the device body (1) are an integral structure, or the large-diameter part (2) and the small-diameter part (3) of the device body (1) are hollow pipes with different diameters welded together.

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