A quick sealing installation structure of a hydraulic cylinder for a hydraulic press

Abstract

This utility model discloses a quick-sealing installation structure for a hydraulic cylinder used in a hydraulic press, including a cylinder body with a cavity for accommodating a piston rod, one end of which is open; a sealing assembly including at least one sealing ring surrounding the piston rod; and a mounting base fixedly disposed at the open end of the cylinder body, with a mounting groove for mounting the sealing assembly. This utility model relates to the technical field of sealing installation structures. This quick-sealing installation structure for a hydraulic cylinder used in a hydraulic press, through the synergistic action of a limiting component, allows for the positioning and fixing of the sealing component without complex tools. The cooperation between the positioning post and the positioning groove ensures accurate installation of the sealing component, and the snap-fit ​​structure between the limiting post and the limiting ring enables rapid locking, significantly shortening installation time, reducing operational difficulty, and improving assembly efficiency.

Description

Technical Field

[0001] This utility model relates to the field of sealing installation structure technology, specifically a quick sealing installation structure for a hydraulic cylinder of a hydraulic press. Background Technology

[0002] During the operation of a hydraulic press, the hydraulic cylinder, as a core actuator, directly affects the press's efficiency, safety, and service life through its sealing performance. Existing hydraulic cylinder sealing structures generally suffer from problems such as cumbersome installation, low positioning accuracy, and insufficient sealing reliability.

[0003] Traditional sealing components often use multiple bolts for fastening or complex snap-fit ​​structures. During installation, the position of the seal needs to be adjusted repeatedly, which is not only time-consuming and labor-intensive, but also prone to uneven stress on the seal due to installation deviation, resulting in early wear or leakage. At the same time, some limiting structures have complex designs and a large number of parts, which not only increases manufacturing costs, but also makes it difficult to disassemble and reassemble for later maintenance. Furthermore, after long-term use, the limiting structure is prone to loosening, which further exacerbates the risk of seal failure. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a quick-sealing installation structure for hydraulic cylinders used in hydraulic presses, solving the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick-sealing installation structure for a hydraulic cylinder of a hydraulic press, comprising a cylinder body, wherein the cylinder body has a cavity for accommodating a piston rod, and one end of the cavity is open.

[0006] A sealing assembly, the sealing assembly including at least one sealing ring, the sealing ring being disposed around the outer periphery of the piston rod;

[0007] Mounting base, the mounting base is fixedly disposed at the open end of the cylinder body, the mounting base is provided with a mounting groove for mounting the sealing component, the mounting groove is in communication with the cavity of the cylinder body;

[0008] A limiting component is disposed on the mounting base and is used to lock the sealing component within the mounting groove.

[0009] Preferably, the limiting component includes a limiting ring and a limiting post. The limiting ring is disposed at the opening of the mounting base, and the limiting post passes through the limiting ring and engages with the mounting base. The limiting post is used to lock the limiting ring onto the sealing component.

[0010] Preferably, the limiting component further includes a positioning post fixedly disposed at the bottom of the limiting ring, and the mounting base is provided with a positioning groove adapted to the positioning post. The limiting post passes through the positioning post and engages with the inner surface of the mounting base.

[0011] Preferably, the mounting base has multiple limiting grooves adapted to the limiting post, and the limiting grooves are connected to the mounting groove.

[0012] Preferably, the limiting component further includes a positioning ring disposed on the outer surface of the mounting base, the positioning ring being used to limit the position of the limiting post.

[0013] Preferably, the inner surface of the positioning ring is formed with an internal thread, and the outer surface of the mounting base is formed with an external thread, wherein the positioning ring engages the internal thread and the external thread by rotation.

[0014] Preferably, the mounting base has a through-hole adapted to the limiting post, the limiting hole is connected to the positioning groove and its end is connected to the mounting groove, the inner wall end of the positioning ring is provided with an inclined surface, and the end of the limiting post is embedded with a ball.

[0015] Beneficial effects

[0016] This utility model provides a quick-sealing installation structure for hydraulic cylinders used in hydraulic presses. Compared with the prior art, it has the following advantages:

[0017] (1) The hydraulic press uses a hydraulic cylinder for quick sealing installation structure. Through the synergistic effect of the limiting components, the sealing components can be positioned and fixed without complicated tools. The cooperation between the positioning column and the positioning groove ensures that the sealing components are installed in a precise position. The snap-fit ​​structure between the limiting column and the limiting ring enables quick locking, which greatly shortens the installation time, reduces the difficulty of operation, and improves the assembly efficiency.

[0018] (2) The hydraulic press uses a hydraulic cylinder quick-sealing installation structure. The sealing component achieves a tight fit with the cylinder body cavity through the installation groove. The limiting component can stably lock the sealing component in the installation groove, avoiding the displacement or loosening of the seal due to vibration and pressure fluctuations during the operation of the hydraulic cylinder. At the same time, the thread fit and inclined surface design of the positioning ring can further form uniform pressure on the sealing component, ensuring that the sealing ring is always tightly fitted with the piston rod and the inner wall of the cylinder, effectively reducing the risk of leakage and significantly improving the sealing performance. Attached Figure Description

[0019] Figure 1 This is a perspective view of the external structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the sealing assembly of this utility model;

[0021] Figure 3 This is a partial structural breakdown diagram of the present invention;

[0022] Figure 4 This is a schematic diagram showing the disassembled positioning component of this utility model;

[0023] Figure 5 This is a partial structural schematic diagram of the limiting component in Embodiment 2 of this utility model.

[0024] In the diagram: 1-cylinder body, 2-sealing ring, 3-mounting seat, 4-mounting groove, 5-limiting ring, 6-limiting post, 7-positioning post, 8-positioning groove, 9-limiting groove, 10-positioning ring, 11-limiting hole, 12-inclined surface, 13-ball bearing. Detailed Implementation

[0025] 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.

[0026] Example 1

[0027] Please see Figures 1-4 This utility model provides a technical solution: a quick-sealing installation structure for a hydraulic cylinder of a hydraulic press, including a cylinder body 1, the cylinder body 1 having a cavity for accommodating a piston rod, one end of the cavity being open, and further including:

[0028] The sealing assembly includes at least one sealing ring 2, which is disposed around the outer periphery of the piston rod. The sealing rings 2 are stacked and their sum of height is the same as the height of the mounting groove 4. The sealing rings 2 are used to seal the connection between the piston rod and the cylinder body 1.

[0029] Mounting seat 3 is fixedly installed at the open end of the cylinder body 1. Mounting seat 3 has a mounting groove 4 for mounting the sealing component. The mounting groove 4 is connected to the cavity of the cylinder body 1. The mounting groove 4 provides a space for the sealing component to be placed, preventing it from being exposed to the external environment and affecting its service life.

[0030] A limiting component is mounted on the mounting base 3 to lock the sealing component within the mounting groove 4. By limiting the position of the sealing component, the sealing effect is improved.

[0031] Regarding the design of the limiting component, it includes a limiting ring 5 and a limiting post 6. The limiting ring 5 is located at the opening of the mounting base 3 and surrounds the outer circumference of the piston rod. The limiting post 6 passes through the limiting ring 5 and engages with the mounting base 3, thereby locking the limiting ring 5 onto the sealing component. After the sealing component is placed in the mounting groove 4, the limiting ring 5 is aligned with the surface of the mounting base 3, and then the limiting post 6 is inserted, passing through the limiting ring 5 and engaging with the inner wall of the mounting base 3. This achieves the locking and fixing of the limiting ring 5, improving the stability of the sealing component installation.

[0032] As a further technical solution, the limiting component also includes a positioning post 7 fixedly disposed at the bottom of the limiting ring 5. The mounting base 3 has a positioning groove 8 adapted to the positioning post 7. The number of positioning posts 7 and positioning grooves 8 is the same, and the number is at least two. A limiting post 6 penetrates the positioning post 7 and engages with the inner surface of the mounting base 3. A through hole is formed on the positioning post 7, which is adapted to the limiting post 6. The mounting base 3 has multiple limiting grooves 9 adapted to the limiting post 6, and the limiting grooves 9 communicate with the positioning grooves 8. Through the coordinated design of the positioning post 7 and the positioning grooves 8, when installing the limiting ring 5, the positioning post 7 and the positioning groove 8 are aligned and inserted respectively. After the positioning post 7 is fully inserted into the positioning groove 8, the limiting ring 5 is completely fitted with the top of the mounting base 3 and the sealing component. Then, the limiting post 6 is aligned with the limiting groove 9 and inserted until the limiting post 6 is fully inserted into the limiting groove 9 and its end engages with the inner wall of the mounting base 3.

[0033] To explain, the depth of the limiting groove 9 is the same as the length of the limiting post 6, so that the limiting post 6 can be fully inserted into the limiting groove 9.

[0034] As a further technical solution, the limiting assembly also includes a positioning ring 10 disposed on the outer surface of the mounting base 3. The positioning ring 10 is used to limit the position of the limiting post 6. By setting the limiting ring 10, it abuts against the end of the limiting post 6 to prevent the limiting post 6 from disengaging.

[0035] Regarding the connection design between the positioning ring 10 and the mounting base 3, the inner surface of the positioning ring 10 has an internal thread, and the outer surface of the mounting base 3 has an external thread. The positioning ring 10 engages with the internal thread and the external thread by rotation. The coordinated arrangement of the internal and external threads effectively improves the stability of the connection between the positioning ring 10 and the mounting base 3.

[0036] Example 2

[0037] To improve ease of assembly and disassembly, unlike embodiment 1, the mounting base 3 has a through-hole 11 adapted to the limiting post 6. The limiting hole 11 communicates with the positioning groove 8 and its end communicates with the mounting groove 4. The inner wall of the positioning ring 10 has an inclined surface 12 at its end, and the end of the limiting post 6 is embedded with a ball 13. The ball 13 effectively reduces the friction between the limiting post 6 and the inclined surface 12. After the sealing assembly and the limiting ring 5 are installed, the positioning ring 10 is rotated. At this time, under the engagement of the internal and external threads, the positioning ring 10 rotates and moves downward along the outer surface of the mounting base 3, causing the inclined surface 12 on the positioning ring 10 to disengage from the ball 13. The positioning ring 10 continues to move downward, and the inclined surface 12 squeezes the ball 13, causing it to move into the limiting hole 11. By squeezing the ball 13, one end of the limiting post 6 squeezes the sealing assembly, further improving the sealing effect and the stability of the connection.

[0038] To explain, the length of the limiting post 6 is slightly greater than the depth of the limiting hole 11, i.e., the side wall thickness of the mounting base 3, so that when the positioning ring 10 disengages from the ball 13, under the rebound action of the sealing assembly, one end of the limiting post 6 can extend out of the limiting hole 11, thereby facilitating the disassembly of the structure.

[0039] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-sealing installation structure for a hydraulic cylinder of a hydraulic press, comprising a cylinder body (1), the cylinder body (1) having a cavity for accommodating a piston rod, one end of the cavity being open, characterized in that: A sealing assembly, the sealing assembly including at least one sealing ring (2) surrounding the outer periphery of the piston rod; Mounting seat (3), the mounting seat (3) is fixedly disposed at the open end of the cylinder body (1), the mounting seat (3) is provided with a mounting groove (4) for mounting the sealing component, and the mounting groove (4) is connected to the cavity of the cylinder body (1); A limiting component is disposed on the mounting base (3) and is used to lock the sealing component in the mounting groove (4).

2. The quick-sealing installation structure for a hydraulic cylinder of a hydraulic press according to claim 1, characterized in that: The limiting component includes a limiting ring (5) and a limiting post (6). The limiting ring (5) is disposed at the opening of the mounting base (3). The limiting post (6) passes through the limiting ring (5) and engages with the mounting base (3). The limiting post (6) is used to lock the limiting ring (5) onto the sealing component.

3. The quick-sealing installation structure for a hydraulic cylinder of a hydraulic press according to claim 2, characterized in that: The limiting component also includes a positioning post (7) fixedly disposed at the bottom of the limiting ring (5), and the mounting base (3) is provided with a positioning groove (8) adapted to the positioning post (7). The limiting post (6) penetrates the positioning post (7) and engages with the inner surface of the mounting base (3).

4. The quick-sealing installation structure for a hydraulic cylinder of a hydraulic press according to claim 3, characterized in that: The mounting base (3) is provided with a plurality of limiting grooves (9) that are adapted to the limiting post (6), and the limiting grooves (9) are connected to the positioning grooves (8).

5. The quick-sealing installation structure for a hydraulic cylinder of a hydraulic press according to claim 2, characterized in that: The limiting component also includes a positioning ring (10) disposed on the outer surface of the mounting base (3), the positioning ring (10) being used to limit the position of the limiting post (6).

6. The quick-sealing installation structure for a hydraulic cylinder of a hydraulic press according to claim 5, characterized in that: The inner surface of the positioning ring (10) is formed with an internal thread, and the outer surface of the mounting base (3) is formed with an external thread, wherein the positioning ring (10) engages the internal thread and the external thread by rotation.

7. The quick-sealing installation structure for a hydraulic cylinder of a hydraulic press according to claim 5, characterized in that: The mounting base (3) has a through-hole (11) adapted to the limiting post (6). The limiting hole (11) is connected to the positioning groove (8) and its end is connected to the mounting groove (4). The inner wall end of the positioning ring (10) is provided with an inclined surface (12). The end of the limiting post (6) is embedded with a ball (13).

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