Reliable hydraulic joint based on wind power industry

Abstract

The utility model discloses a reliable hydraulic joint based on the wind power industry, which relates to the technical field of hydraulic joints and comprises a two-way joint, one end of the outer wall of the two-way joint is connected with a metal pipe fitting through threads, the outer wall of the metal pipe fitting is simultaneously provided with a plurality of clamping grooves, and the outer wall of the two-way joint is simultaneously provided with a plurality of auxiliary sliding grooves. The two ends of the outer wall of the two-way connector are both connected with a plurality of metal pull rings in a sliding mode, the outer wall of the two-way connector is sleeved with a plurality of tension springs at the same time, one side of the outer wall of each metal pull ring is fixedly connected with a sealing gasket, and the outer wall of each metal pull ring is rotationally connected with a plurality of metal clamping pieces at the same time. Under the action of the tension spring, threads can be pressed more tightly, the friction force at the threaded connection position is increased, looseness is not prone to occurring even if vibration occurs, and therefore the situations that gaps are generated due to vibration, and hydraulic oil leakage or empty body immersion is caused are effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic joint technology, specifically a reliable hydraulic joint for the wind power industry. Background Technology

[0002] Hydraulic joints are key connecting components in the hydraulic systems of wind turbine generators, primarily used to transfer hydraulic oil and ensure system sealing. In the wind power sector, hydraulic systems are widely used in pitch control, yaw braking, and transmission devices. Hydraulic joints, through reliable connecting pipelines, ensure the stable transmission of high-pressure oil, directly affecting the operational accuracy and safety of the generator set.

[0003] According to a search, Chinese patent document, publication number CN 222255406 U, discloses a hydraulic ferrule transition joint, comprising: a fixed block, a transition joint body fixedly fitted inside the fixed block, and sealing gaskets movably fitted on the left and right sides of the middle of the outer surface of the transition joint body, with the outer surface of the sealing gaskets movably connected to the outer surface of the fixed block. This utility model, by setting up a rotating rod, a locking jaw, a round rod, a threaded rod, and a horizontal plate, allows the threaded rod to rotate when the handle is turned. Since the outer surface of the threaded rod is threadedly fitted to the inner surface of the horizontal plate, the horizontal plate will move the vertical plate upwards along the inner surface of the top of the fixed block, thereby causing the round rod to generate a thrust on the rotating rod, pushing the rotating rod and the locking jaw to rotate around the round axis. This, in turn, uses the locking jaw to fix the sealing gasket, preventing it from loosening and being lost, thus avoiding resource waste.

[0004] Although the above-mentioned device can be connected to the pipeline via threads, relying solely on the friction of the threads can easily lead to hidden dangers under complex working conditions. Threaded connections are prone to stress relaxation in vibration environments, resulting in a decrease in preload. Under the periodic oscillation of wind turbine blades and the resonance of the tower, gaps may appear at the sealing interface, causing hydraulic oil leakage or air intrusion. In view of this, we provide a reliable hydraulic joint based on the wind power industry. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a reliable hydraulic joint for the wind power industry.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a reliable hydraulic connector for the wind power industry, comprising a bidirectional connector, one end of the outer wall of the bidirectional connector being connected to a metal pipe fitting via a thread, and the outer wall of the metal pipe fitting being provided with multiple slots, the outer wall of the bidirectional connector being provided with multiple auxiliary sliding grooves, and both ends of the outer wall of the bidirectional connector being slidably connected to multiple metal pull rings, the outer wall of the bidirectional connector being sleeved with multiple tension springs, a sealing gasket being fixedly connected to one side of the outer wall of the metal pull ring, and multiple metal clips being rotatably connected to the outer wall of the metal pull ring, and multiple fixing rings being fixedly connected to the center of the outer wall of the bidirectional connector.

[0007] As described above, the metal card and the card slot correspond to each other, and the bottom of the outer wall of the metal card is provided with a protrusion.

[0008] As described above, the outer wall of the metal card engages with the inner wall of the card slot.

[0009] As mentioned above, the outer wall of the sealing gasket is tightly fitted to one end of the metal pipe.

[0010] As described above, the inner wall of the metal pull ring is slidably connected to the auxiliary sliding groove.

[0011] As described above, one end of the tension spring is fixedly connected to the outer wall of the fixed ring, and the other end of the tension spring is fixedly connected to the outer wall of the metal pull ring.

[0012] Compared with existing technologies, this reliability hydraulic joint for the wind power industry has the following advantages:

[0013] I. This utility model involves rotating the metal pipe fitting to a suitable position, pulling the metal pull ring, and pressing the sealing gasket tightly against the outer wall of the metal pipe fitting. Then, after the outer wall of the metal clip is embedded into the slot, the metal clip and the slot form a snap-fit. Under the action of the tension spring, the threads are pressed tighter, increasing the friction at the threaded connection. Even with vibration, it is not easy to loosen, thus effectively reducing gaps caused by vibration, which could lead to hydraulic oil leakage or air intrusion.

[0014] Second, this utility model, through the snap-fit ​​structure of the slot and the metal clip, can restrict the rotation of the metal pipe fitting, prevent it from loosening, and further prevent oil and gas leaks.

[0015] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a frontal three-dimensional structural diagram of the present utility model;

[0018] Figure 3 This is a side-section three-dimensional structural diagram of the present invention;

[0019] Figure 4 This is a three-dimensional structural diagram of the metal card and card slot of this utility model.

[0020] In the diagram: 1. Two-way connector; 2. Metal pipe fitting; 201. Slot; 202. Metal clip; 3. Auxiliary slide; 301. Metal pull ring; 302. Tension spring; 303. Sealing gasket; 304. Fixing ring. Detailed Implementation

[0021] 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.

[0022] like Figure 1-4 As shown, this utility model provides a technical solution: a reliable hydraulic connector for the wind power industry, including a bidirectional connector 1. One end of the outer wall of the bidirectional connector 1 is connected to a metal pipe 2 by a thread, and the outer wall of the metal pipe 2 is provided with multiple slots 201. The outer wall of the bidirectional connector 1 is provided with multiple auxiliary sliding grooves 3, and both ends of the outer wall of the bidirectional connector 1 are slidably connected with multiple metal pull rings 301. Multiple tension springs 302 are sleeved on the outer wall of the bidirectional connector 1. A sealing gasket 303 is fixedly connected to one side of the outer wall of the metal pull ring 301, and multiple metal clips 202 are rotatably connected to the outer wall of the metal pull ring 301. Multiple fixing rings 304 are fixedly connected to the center of the outer wall of the bidirectional connector 1.

[0023] Rotate the metal fitting 2 to the appropriate position and pull the metal pull ring 301. The sealing gasket 303 will be pressed tightly against the outer wall of the metal fitting 2. Then, after the outer wall of the metal clip 202 is inserted into the slot 201, the metal clip 202 and the slot 201 will form a snap-fit. Under the action of the tension spring 302, the threads will be pressed tighter, increasing the friction at the threaded connection. Even if there is vibration, it will not easily loosen, so as to effectively reduce the gap caused by vibration, which may cause hydraulic oil leakage or air intrusion.

[0024] like Figure 3-4As shown, the metal clip 202 corresponds to the card slot 201, and the bottom of the outer wall of the metal clip 202 is provided with a protrusion. The outer wall of the metal clip 202 is engaged with the inner wall of the card slot 201. Pulling the metal pull ring 301 can embed the bottom of the metal clip 202 into the card slot 201.

[0025] like Figure 1-4 As shown, the outer wall of the sealing gasket 303 is tightly fitted to one end of the metal pipe 2. Fitting the sealing gasket 303 to the outer wall of the metal pipe 2 can improve the sealing performance of the device at the threaded connection.

[0026] The inner wall of the metal pull ring 301 is slidably connected to the auxiliary slide groove 3. The auxiliary slide groove 3 restricts the movement of the metal pull ring 301 on the outer wall of the bidirectional joint 1 through its own inner wall, so that it can only move horizontally along the inner wall of the auxiliary slide groove 3.

[0027] One end of the tension spring 302 is fixedly connected to the outer wall of the fixed ring 304, and the other end of the tension spring 302 is fixedly connected to the outer wall of the metal pull ring 301. The tension spring 302 can provide continuous tension to the metal clip 202 to increase the thread friction at the threaded connection. When the outer wall of the metal clip 202 is engaged with the inside of the slot 201, even if the threads are slightly loosened due to equipment vibration, the spring will continue to tighten to remedy the situation and prevent oil or air leakage.

[0028] Working principle: Pulling the metal pull ring 301 can embed the bottom of the metal clip 202 into the slot 201, and make the sealing gasket 303 fit against the outer wall of the metal pipe 2, which can improve the sealing performance of the device at the threaded connection. The auxiliary slide 3 restricts the movement of the metal pull ring 301 on the outer wall of the bidirectional joint 1 through its own inner wall, so that it can only move horizontally along the inner wall of the auxiliary slide 3. The tension spring 302 can provide continuous tension for the metal clip 202 to increase the thread friction at the threaded connection. When the outer wall of the metal clip 202 is engaged with the inside of the slot 201, even if the threads are slightly loosened due to equipment vibration, the spring will continue to tighten to remedy the situation and prevent oil or air leakage.

[0029] 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 reliability hydraulic joint for the wind power industry, comprising a bidirectional joint (1), characterized in that: One end of the outer wall of the bidirectional connector (1) is connected to a metal pipe fitting (2) by a thread, and the outer wall of the metal pipe fitting (2) is provided with multiple slots (201). The outer wall of the bidirectional connector (1) is provided with multiple auxiliary sliding grooves (3), and both ends of the outer wall of the bidirectional connector (1) are slidably connected with multiple metal pull rings (301). The outer wall of the bidirectional connector (1) is also fitted with multiple tension springs (302). A sealing gasket (303) is fixedly connected to one side of the outer wall of the metal pull ring (301), and the outer wall of the metal pull ring (301) is rotatably connected with multiple metal clips (202). The center of the outer wall of the bidirectional connector (1) is fixedly connected with multiple fixing rings (304).

2. The reliability hydraulic joint for the wind power industry according to claim 1, characterized in that: The metal card (202) corresponds to the card slot (201), and the bottom of the outer wall of the metal card (202) is provided with a protrusion.

3. A reliability hydraulic joint for the wind power industry according to claim 1, characterized in that: The outer wall of the metal clip (202) engages with the inner wall of the slot (201).

4. A reliability hydraulic joint for the wind power industry according to claim 1, characterized in that: The outer wall of the sealing gasket (303) is tightly fitted to one end of the metal pipe fitting (2).

5. A reliability hydraulic joint for the wind power industry according to claim 1, characterized in that: The inner wall of the metal pull ring (301) is slidably connected to the auxiliary slide groove (3).

6. A reliability hydraulic joint for the wind power industry according to claim 1, characterized in that: One end of the tension spring (302) is fixedly connected to the outer wall of the fixing ring (304), and the other end of the tension spring (302) is fixedly connected to the outer wall of the metal pull ring (301).

Images