High-speed high-pressure hydraulic rotary joint

Abstract

The utility model discloses a high-speed high-pressure hydraulic rotary joint which comprises a vertically-arranged joint body, an arc-shaped heat conduction plate is placed on the outer side wall of the joint body, heat dissipation fins are fixedly connected to the side, away from the joint body, of the heat conduction plate, and a plurality of connecting ropes are arranged on the side, away from the heat conduction plate, of the joint body. One end of the connecting rope is fixedly connected with the heat conducting plate, a storage groove is formed in the heat conducting plate, a rotating rod is rotationally connected to the inner bottom of the storage groove, the rotating rod is fixedly sleeved with a winding wheel corresponding to the connecting rope, and an opening corresponding to the connecting rope is formed in the inner side wall of the storage groove; the other end of the connecting rope penetrates through the opening in a sliding mode and is fixedly connected with the winding wheel. The focusing rotary joint is improved and optimized, the heat dissipation performance is remarkably improved, the focusing rotary joint can be directly connected with an existing joint for use, and the product practicability is greatly enhanced.

Description

Technical Field

[0001] This utility model relates to the field of rotary joint technology, and in particular to a high-speed, high-pressure hydraulic rotary joint. Background Technology

[0002] High-speed, high-pressure hydraulic rotary joints are key components used in hydraulic systems. They enable reliable hydraulic medium transmission between high-speed rotating equipment and fixed hydraulic pipelines, while withstanding high pressure. Through special sealing design and structure, they ensure stable and leak-free flow of hydraulic oil and other media under high-speed and high-pressure environments. They are widely used in CNC machine tools, construction machinery, metallurgical equipment, and other fields with high requirements for hydraulic transmission.

[0003] High-speed, high-pressure hydraulic rotary joints generate heat during operation due to internal friction, medium flow resistance, and high-pressure energy loss. This reduces the viscosity of the hydraulic oil, increases internal leakage, and accelerates the aging of seals, severely affecting the performance and service life of the rotary joint. Therefore, improvements and optimizations have been made to the heat dissipation of high-speed, high-pressure hydraulic rotary joints. Utility Model Content

[0004] The purpose of this utility model is to solve the problems mentioned in the background art and to propose a high-speed, high-pressure hydraulic rotary joint.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-speed, high-pressure hydraulic rotary joint includes a vertically arranged joint body. An arc-shaped heat-conducting plate is placed on the outer wall of the joint body. Heat dissipation fins are fixedly connected to the side of the heat-conducting plate away from the joint body. Multiple connecting ropes are provided on the side of the joint body away from the heat-conducting plate. One end of each connecting rope is fixedly connected to the heat-conducting plate. A storage groove is provided inside the heat-conducting plate. A rotating rod is rotatably connected to the bottom of the storage groove. A winding wheel corresponding to the connecting rope is fixedly sleeved on the rotating rod. An opening corresponding to the connecting rope is provided on the inner wall of the storage groove. The other end of each connecting rope slides... The rotating rod has a through opening and is fixedly connected to the winding reel. The upper end of the rotating rod passes through the heat-conducting plate and is fixedly connected to a horizontally arranged connecting plate. The rotating rod and the heat-conducting plate are rotatably connected. The upper end of the connecting plate and near its edge are provided with a vertically arranged limiting rod. The upper end of the connecting plate is provided with a through hole corresponding to the limiting rod. The upper end of the heat-conducting plate is provided with a plurality of limiting grooves corresponding to the limiting rod in a ring. The lower end of the limiting rod slides through the through hole and extends into the limiting groove. A second rubber pad is fixedly connected to the inner side wall of the through hole. The outer side wall of the second rubber pad abuts against the outer side wall of the limiting rod.

[0007] Preferably, the lower end of the limiting rod and the bottom of the limiting groove are both fixedly connected with magnets that attract each other.

[0008] Preferably, both ends of the rotating rod are rotatably sleeved with connecting rings, and the opposite sides of the two connecting rings are respectively fixedly connected to the inner sidewall of the storage groove.

[0009] Preferably, a first rubber pad is fixedly connected to the side of the connecting rope facing the connector body.

[0010] Preferably, a pull ring is fixedly connected to the upper end of the limiting rod.

[0011] Preferably, a rubber strip is fixedly connected to the outer wall of the connecting disc.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This utility model, by setting up heat dissipation fins, heat conduction plate, connecting rope, winding wheel, rotating rod and connecting plate, not only improves the passive heat dissipation performance of rotary joint, but also makes it easy to install and connect with existing rotary joints, greatly enhancing its practicality.

[0014] This utility model, through the synergistic effect of pull ring, rubber pad, limiting rod, limiting groove and magnet, can effectively prevent the connecting plate from loosening, thereby effectively preventing the heat dissipation mechanism of the rotary joint from loosening during operation, and significantly improving the overall reliability.

[0015] This utility model focuses on improving and optimizing the rotary joint, which significantly enhances heat dissipation performance and can be directly installed and connected with existing joints, greatly enhancing the product's practicality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a high-speed, high-pressure hydraulic rotary joint proposed in this utility model;

[0017] Figure 2 This is a top view of the high-speed, high-pressure hydraulic rotary joint proposed in this utility model.

[0018] Figure 3 This is a schematic diagram of the structure at point A of a high-speed, high-pressure hydraulic rotary joint proposed in this utility model.

[0019] In the diagram: 1-Connector body, 2-Heat conduction plate, 3-Heat dissipation fins, 4-Rotating rod, 5-Roller, 6-Connecting rope, 7-Fixing cylinder, 8-Connecting disc, 9-Magnet, 10-First rubber pad, 11-Connecting ring, 12-Rubber strip, 13-Pull ring, 14-Limiting rod, 15-Second rubber pad. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figure 1-3 A high-speed, high-pressure hydraulic rotary joint includes a vertically arranged joint body 1. An arc-shaped heat-conducting plate 2 is placed on the outer wall of the joint body 1 for conducting heat. A heat dissipation fin 3 is fixedly connected to the side of the heat-conducting plate 2 away from the joint body 1 to improve the heat dissipation performance of the joint body 1. Multiple connecting ropes 6 are provided on the side of the joint body 1 away from the heat-conducting plate 2 to prevent the heat-conducting plate 2 from loosening. A first rubber pad 10 is fixedly connected to the side of the connecting rope 6 facing the joint body 1 to increase the friction between the connecting rope 6 and the joint body 1 and enhance the firmness. The connecting rope 6 is made of steel wire. One end of the connecting rope 6 is fixedly connected to the heat-conducting plate 2. A storage groove is provided inside the heat-conducting plate 2. A rotating rod 4 is rotatably connected to the bottom of the storage groove to drive the winding wheel 5 to rotate. Both ends of the rotating rod 4 are rotatably sleeved with connecting rings 11 to provide lateral support for the rotating rod 4 and prevent the rotating rod 4 from swinging. The opposite sides of the two connecting rings 11 are fixedly connected to the inner side wall of the storage groove.

[0022] In this embodiment, a winding wheel 5 corresponding to the connecting rope 6 is fixedly sleeved on the rotating rod 4 for winding the connecting rope 6. An opening corresponding to the connecting rope 6 is provided on the inner side wall of the storage groove. The other end of the connecting rope 6 slides through the opening and is fixedly connected to the winding wheel 5. The upper end of the rotating rod 4 passes through the heat-conducting plate 2 and is fixedly connected to a horizontally arranged connecting disc 8 for driving the rotating rod 4 to rotate. The rotating rod 4 and the heat-conducting plate 2 are rotatably connected. A rubber strip 12 is fixedly connected to the outer side wall of the connecting disc 8 for anti-slip function when the connecting disc 8 is manually rotated.

[0023] In this embodiment, a vertically positioned limiting rod 14 is provided at the upper end of the connecting plate 8 and near its edge to cooperate with the limiting groove to prevent the connecting plate 8 from loosening. The upper end of the connecting plate 8 is provided with a through hole corresponding to the limiting rod 14. The upper end of the heat-conducting plate 2 is provided with a plurality of limiting grooves corresponding to the limiting rod 14 in a ring. The lower end of the limiting rod 14 slides through the through hole and extends into the limiting groove. A second rubber pad 15 is fixedly connected to the inner side wall of the through hole to increase the resistance when the limiting rod 14 moves and prevent it from slipping out of the through hole. The outer side wall of the second rubber pad 15 abuts against the outer side wall of the limiting rod 14. A magnet 9 is fixedly connected between the lower end of the limiting rod 14 and the bottom of the limiting groove to magnetically position the limiting rod 14. A pull ring 13 is fixedly connected to the upper end of the limiting rod 14 to facilitate the user to lift the limiting rod 14.

[0024] In this embodiment, firstly, the limiting rod 14 is lifted upwards so that its lower end disengages from the limiting groove. Then, the connecting disc 8 is manually rotated, causing the rotating rod 4 to rotate synchronously. During the rotation of the rotating rod 4, the winding wheel 5 rotates, which in turn drives the connecting rope 6 to move. The connecting rope 6 tightens as it moves. As the connecting rope 6 tightens, the connecting rope 6 and the heat-conducting plate 2 gradually come into close contact with the surface of the connector body 1. At this point, the heat-conducting plate 2 and the connector body 1 are installed and connected. Finally, the limiting rod 14 is inserted back into the limiting groove to lock the connecting disc 8, preventing the rotating rod 4 and the winding wheel 5 from loosening and improving the reliability of the connection. When the connector body 1 is running, the heat-conducting plate 2 conducts the heat it generates to the heat dissipation fins 3, which then dissipate the heat into the air, effectively improving the passive heat dissipation effect of the connector body 1.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-speed, high-pressure hydraulic rotary joint, comprising a vertically arranged joint body (1), characterized in that: An arc-shaped heat-conducting plate (2) is placed on the outer wall of the connector body (1). A heat dissipation fin (3) is fixedly connected to the side of the heat-conducting plate (2) away from the connector body (1). Multiple connecting ropes (6) are provided on the side of the connector body (1) away from the heat-conducting plate (2). One end of the connecting rope (6) is fixedly connected to the heat-conducting plate (2). A storage groove is provided inside the heat-conducting plate (2). A rotating rod (4) is rotatably connected to the bottom of the storage groove. A winding wheel (5) corresponding to the connecting rope (6) is fixedly sleeved on the rotating rod (4). An opening corresponding to the connecting rope (6) is provided on the inner wall of the storage groove. The other end of the connecting rope (6) slides through the opening and is fixedly connected to the winding wheel (5). Next, the upper end of the rotating rod (4) passes through the heat-conducting plate (2) and is fixedly connected to a horizontally arranged connecting plate (8). The rotating rod (4) and the heat-conducting plate (2) are rotatably connected. The upper end of the connecting plate (8) and near its edge are provided with a vertically arranged limiting rod (14). The upper end of the connecting plate (8) is provided with a through hole corresponding to the limiting rod (14). The upper end of the heat-conducting plate (2) is provided with a plurality of limiting grooves corresponding to the limiting rod (14) in an annular arrangement. The lower end of the limiting rod (14) slides through the through hole and extends into the limiting groove. A second rubber pad (15) is fixedly connected to the inner side wall of the through hole. The outer side wall of the second rubber pad (15) abuts against the outer side wall of the limiting rod (14).

2. The high-speed, high-pressure hydraulic rotary joint according to claim 1, characterized in that: The lower end of the limiting rod (14) and the bottom of the limiting groove are both fixedly connected with magnets (9).

3. A high-speed, high-pressure hydraulic rotary joint according to claim 1, characterized in that: Both ends of the rotating rod (4) are rotatably sleeved with connecting rings (11), and the opposite sides of the two connecting rings (11) are fixedly connected to the inner sidewall of the storage groove.

4. A high-speed, high-pressure hydraulic rotary joint according to claim 1, characterized in that: The connecting rope (6) is fixedly connected to the first rubber pad (10) on the side facing the connector body (1).

5. A high-speed, high-pressure hydraulic rotary joint according to claim 1, characterized in that: A pull ring (13) is fixedly connected to the upper end of the limiting rod (14).

6. A high-speed, high-pressure hydraulic rotary joint according to claim 1, characterized in that: A rubber strip (12) is fixedly connected to the outer wall of the connecting plate (8).

Images