Hydraulic rotary joint capable of reducing abrasion

Abstract

The utility model discloses a hydraulic rotary joint capable of reducing abrasion, which relates to the field of hydraulic rotary joints and comprises a joint machine body, a connecting ring and an external pipeline, a flange plate is arranged at the top of the joint machine body, the center of the flange plate is fixedly connected with a connecting port, and a limiting ring is arranged on the outer side of the connecting port. The connecting ring is rotationally connected to the outer side of the connecting opening, the connecting ring is arranged between the connecting opening and the limiting ring, and limiting assemblies are arranged on the four sides of the limiting ring. According to the hydraulic rotating joint capable of reducing abrasion, by arranging the limiting assembly and the mounting assembly, in the using process of the hydraulic rotating joint, the hydraulic rotating joint is calibrated during mounting, abrasion is reduced, the service life of the hydraulic rotating joint by workers is prolonged, and the sealing performance of the structure is guaranteed; and the situation of accidental rotation and loosening during follow-up use is avoided, leakage is avoided, and a worker can conveniently use the hydraulic rotary joint.

Description

Technical Field

[0001] The utility model relates to the field of hydraulic rotary joints, in particular to a hydraulic rotary joint with reduced wear. Background Art

[0002] The hydraulic rotary joint is a device used to transport compressed air, cooling water, hydraulic oil, thermal oil and other fluid media to two relatively rotating pipes. As a self-balancing element, it can transfer pressurized oil or other fluids to the hydraulic rotary cylinder, so that the piston of the equipment moves left and right, thereby achieving radial loosening of the power chuck. During the return stroke, the hydraulic rotary joint is depressurized with the help of pressurized oil, and resets through the action of the spring to achieve chuck clamping.

[0003] However, the current hydraulic rotary joints still have some shortcomings. For example, a leak-proof hydraulic rotary joint with application number 202321827022.6 has not yet been fully considered in terms of the installation structure of the hydraulic rotary joint. During the use of the hydraulic rotary joint, if the installation structure of the hydraulic rotary joint is not fully considered, it may accidentally rotate and loosen during subsequent use, making it impossible to ensure the sealing of the structure, which is inconvenient for the staff to use the hydraulic rotary joint.

[0004] Therefore, it is urgent to improve this shortcoming. The utility model studies and improves the existing structure and shortcomings, and provides a hydraulic rotary joint with reduced wear. Utility Model Content

[0005] The utility model aims to provide a hydraulic rotary joint with reduced wear, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hydraulic rotary joint with reduced wear, comprising a joint body, a connecting ring and an external pipeline, a flange plate is arranged on the top of the joint body, and a connecting port is fixedly connected to the center of the flange plate, and a limiting ring is arranged on the outside of the connecting port, the connecting ring is rotatably connected to the outside of the connecting port, and the connecting ring is arranged between the connecting port and the limiting ring, and limiting components are arranged on four sides of the limiting ring, and the limiting components include a limiting block, a limiting rod, a connecting block, a reset spring, a clamping piece and a push-pull piece, the external pipeline is arranged on the outside of the connecting ring, and an installation component is arranged on the outside of the connecting ring, and the installation component includes a fixed ring, an arc-shaped movable part and a throat clamp.

[0007] Furthermore, a mounting ring is fixedly connected to the outer side of the limiting ring, and the mounting ring is fixedly connected to the flange plate by bolts.

[0008] Furthermore, the outer wall of the connecting port is provided with a thread, and the connecting port is rotatably connected to the connecting ring through the thread, and a sealing rubber ring is provided at the connection between the connecting port and the connecting ring.

[0009] Furthermore, the limit block is engaged with the outer wall of the connecting ring, and a limit rod is welded at the center of one side of the limit block, and the connecting block is fixedly connected to the outer wall of the middle section of the limit rod.

[0010] Furthermore, a return spring is arranged on one side of the connection block, and the return spring is arranged on the outside of the limiting rod, and the connection block and the return spring are both arranged inside the side wall of the limiting ring.

[0011] Furthermore, a clamping piece is welded to the end of the limiting rod, and the clamping piece is fixedly connected to the limiting ring by bolts, and a push-pull piece is welded to the center of one side of the clamping piece.

[0012] Furthermore, the external pipeline is an elastic rubber structure, and the inner wall of the external pipeline is provided with threads, and the external pipeline is rotatably connected to the outside of the connecting ring through the threads, and a sealing rubber ring is provided at the connection between the external pipeline and the connecting ring.

[0013] Furthermore, the fixing ring is welded to the outer wall of the connecting ring, and the top of the fixing ring is rotatably connected with an arc-shaped movable part, and the inner wall of the arc-shaped movable part is in close contact with the external pipeline, and a throat clamp is arranged on the outer side of the arc-shaped movable part.

[0014] The utility model provides a hydraulic rotary joint with reduced wear, which has the following beneficial effects:

[0015] 1. The utility model is provided with a limit assembly. During the use of the hydraulic rotary joint, the limit block is tightly engaged with the outer wall of the connecting ring. The limit block is used for calibration to reduce wear and avoid accidental rotation and loosening during subsequent use, thereby ensuring the sealing of the structure, extending the service life of the hydraulic rotary joint for the staff, and facilitating the staff to use the hydraulic rotary joint.

[0016] 2. The utility model is provided with an installation component. During the use of the hydraulic rotary joint, the tightness of the throat clamp is adjusted so that the arc-shaped movable part tightly restricts the external pipeline, avoiding the pipeline from falling off during subsequent use and avoiding leakage during subsequent use. The structure is simple, which is convenient for the staff to use the hydraulic rotary joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a hydraulic rotary joint with reduced wear according to the utility model;

[0018] Figure 2It is a partial cross-sectional schematic diagram of the three-dimensional structure of a hydraulic rotary joint with reduced wear according to the utility model;

[0019] Figure 3 It is a schematic diagram of a three-dimensional cross-sectional structure of a limit ring-limit assembly of a hydraulic rotary joint for reducing wear of the utility model;

[0020] Figure 4 The utility model is a hydraulic rotary joint with reduced wear Figure 3 A schematic diagram of the structure enlargement in the middle;

[0021] Figure 5 The utility model is a schematic diagram of a three-dimensional cross-sectional structure of a connecting ring-mounting assembly of a hydraulic rotary joint with reduced wear.

[0022] In the figure: 1. Connector body; 2. Flange plate; 3. Connection port; 4. Limiting ring; 5. Mounting ring; 6. Connecting ring; 7. Limiting assembly; 701. Limiting block; 702. Limiting rod; 703. Connecting block; 704. Reset spring; 705. Engaging part; 706. Push-pull part; 8. External pipeline; 9. Mounting assembly; 901. Fixing ring; 902. Arc-shaped movable part; 903. Laryngeal clamp. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0024] like Figure 1-Figure 4As shown, a hydraulic rotary joint with reduced wear includes a joint body 1, a connecting ring 6 and an external pipeline 8, a flange plate 2 is provided on the top of the joint body 1, and a connecting port 3 is fixedly connected to the center of the flange plate 2, and a limiting ring 4 is provided on the outer side of the connecting port 3, a mounting ring 5 is fixedly connected to the outer side of the limiting ring 4, and the mounting ring 5 is fixedly connected to the flange plate 2 by bolts, the connecting ring 6 is rotatably connected to the outer side of the connecting port 3, and the connecting ring 6 is arranged between the connecting port 3 and the limiting ring 4, the outer wall of the connecting port 3 is provided with a thread, and the connecting port 3 is rotatably connected to the connecting ring 6 by the thread, and a sealing rubber ring is provided at the connection between the connecting port 3 and the connecting ring 6, and a limiting assembly 7 is provided on the four sides of the limiting ring 4, and the limiting assembly 7 includes It includes a limit block 701, a limit rod 702, a connecting block 703, a return spring 704, a clamping piece 705 and a push-pull piece 706, the limit block 701 is clamped with the outer wall of the connecting ring 6, and the limit rod 702 is welded at the center of one side of the limit block 701, and the connecting block 703 is fixedly connected to the outer wall of the middle section of the limit rod 702, a return spring 704 is arranged on one side of the connecting block 703, and the return spring 704 is arranged on the outside of the limit rod 702, and the connecting block 703 and the return spring 704 are both arranged inside the side wall of the limit ring 4, a clamping piece 705 is welded at the end of the limit rod 702, and the clamping piece 705 is fixedly connected to the limit ring 4 by bolts, and a push-pull piece 706 is welded at the center of one side of the clamping piece 705;

[0025] The specific operation is as follows: the staff uses bolts to fix the mounting ring 5 above the top flange plate 2 of the joint body 1, and uses threads to rotate the connecting ring 6 to connect it to the outside of the connecting port 3. While the connecting ring 6 rotates, the staff pulls the push-pull member 706 in the limit assembly 7 outward to prevent the limit block 701 welded at the end of the limit rod 702 from hindering the rotation of the connecting ring 6. When the connecting ring 6 is rotated into place, the staff releases the pull on the push-pull member 706 and pushes it so that the limit block 701 is tightly engaged with the outer wall of the connecting ring 6, and then uses bolts to fix the engaging member 705 with the limit ring 4, and uses the limit block 701 to play a calibration role to reduce wear, extend the service life of the hydraulic rotary joint, and facilitate the staff to use the hydraulic rotary joint.

[0026] like Figure 1 , Figure 2 and Figure 5As shown, the external pipeline 8 is arranged on the outside of the connecting ring 6, the external pipeline 8 is an elastic rubber structure, and the inner wall of the external pipeline 8 is provided with a thread, and the external pipeline 8 is rotatably connected to the outside of the connecting ring 6 through the thread, and a sealing rubber ring is provided at the connection between the external pipeline 8 and the connecting ring 6, and a mounting assembly 9 is provided on the outside of the connecting ring 6, and the mounting assembly 9 includes a fixed ring 901, an arc-shaped movable part 902 and a throat hoop 903, the fixed ring 901 is welded to the outer wall of the connecting ring 6, and the top of the fixed ring 901 is rotatably connected with the arc-shaped movable part 902, and the inner wall of the arc-shaped movable part 902 is in close contact with the external pipeline 8, and a throat hoop 903 is provided on the outside of the arc-shaped movable part 902;

[0027] The specific operation is as follows: the staff uses the thread to rotate the external pipeline 8 to connect it to the outside of the connecting ring 6, and then rotates the arc-shaped movable part 902 in the installation assembly 9 so that the inner wall of the arc-shaped movable part 902 contacts the external pipeline 8. Then the staff adjusts the tightness of the throat clamp 903 so that the arc-shaped movable part 902 tightly restricts the external pipeline 8 to avoid the pipeline falling off during subsequent use. The structure is simple, which is convenient for the staff to use the hydraulic rotary joint.

[0028] In summary, the wear-reducing hydraulic rotary joint is based on Figure 1-Figure 5 In the structure shown in the figure, during the use of the hydraulic rotary joint, first, the staff uses bolts to fix the mounting ring 5 above the top flange plate 2 of the joint body 1, and uses threads to rotate the connecting ring 6 to connect it to the outside of the connecting port 3. While the connecting ring 6 is rotating, the staff pulls the push-pull member 706 in the limit assembly 7 outward to prevent the limit block 701 welded at the end of the limit rod 702 from hindering the rotation of the connecting ring 6. When the connecting ring 6 is rotated into place, the staff releases the pull on the push-pull member 706 and pushes it, so that the limit The positioning block 701 is tightly engaged with the outer wall of the connecting ring 6, and then the engaging piece 705 is fixedly connected to the limiting ring 4 by bolts, and the limiting block 701 is used for calibration. Next, the staff uses the thread to rotate the external pipeline 8 to connect it to the outside of the connecting ring 6, and then rotates the arc-shaped movable part 902 in the installation assembly 9 so that the inner wall of the arc-shaped movable part 902 contacts the external pipeline 8. Then the staff adjusts the tightness of the throat clamp 903 so that the arc-shaped movable part 902 tightly restricts the external pipeline 8. The structure is simple and convenient for the staff to use.

[0029] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A hydraulic rotary joint with reduced wear, comprising a joint body (1), a connecting ring (6) and an external pipeline (8), characterized in that: A flange plate (2) is provided on the top of the joint body (1), and a connecting port (3) is fixedly connected to the center of the flange plate (2), and a limiting ring (4) is provided on the outer side of the connecting port (3), the connecting ring (6) is rotatably connected to the outer side of the connecting port (3), and the connecting ring (6) is provided between the connecting port (3) and the limiting ring (4), and limiting components (7) are provided on four sides of the limiting ring (4), and the limiting components (7) include a limiting block (701), a limiting rod (702), a connecting block (703), a return spring (704), a locking member (705) and a push-pull member (706), the external pipeline (8) is provided on the outer side of the connecting ring (6), and a mounting component (9) is provided on the outer side of the connecting ring (6), and the mounting component (9) includes a fixing ring (901), an arc-shaped movable member (902) and a throat clamp (903).

2. A hydraulic rotary joint with reduced wear according to claim 1, characterized in that: A mounting ring (5) is fixedly connected to the outer side of the limiting ring (4), and the mounting ring (5) is fixedly connected to the flange plate (2) via bolts.

3. A hydraulic rotary joint with reduced wear according to claim 1, characterized in that: The outer wall of the connection port (3) is provided with a thread, and the connection port (3) is rotatably connected to the connection ring (6) via the thread, and a sealing rubber ring is provided at the connection between the connection port (3) and the connection ring (6).

4. A hydraulic rotary joint with reduced wear according to claim 1, characterized in that: The limiting block (701) is engaged with the outer wall of the connecting ring (6), a limiting rod (702) is welded at the center of one side of the limiting block (701), and a connecting block (703) is fixedly connected to the outer wall of the middle section of the limiting rod (702).

5. A hydraulic rotary joint with reduced wear according to claim 1, characterized in that: A return spring (704) is provided on one side of the connection block (703), and the return spring (704) is arranged on the outside of the limiting rod (702), and the connection block (703) and the return spring (704) are both arranged inside the side wall of the limiting ring (4).

6. A hydraulic rotary joint with reduced wear according to claim 1, characterized in that: A clamping piece (705) is welded to the end of the limiting rod (702), and the clamping piece (705) is fixedly connected to the limiting ring (4) via bolts, and a push-pull piece (706) is welded to the center of one side of the clamping piece (705).

7. A hydraulic rotary joint with reduced wear according to claim 1, characterized in that: The external pipeline (8) is an elastic rubber structure, and the inner wall of the external pipeline (8) is provided with threads. The external pipeline (8) is rotatably connected to the outside of the connecting ring (6) through the threads, and a sealing rubber ring is provided at the connection between the external pipeline (8) and the connecting ring (6).

8. A hydraulic rotary joint with reduced wear according to claim 1, characterized in that: The fixing ring (901) is welded to the outer wall of the connecting ring (6), and the top of the fixing ring (901) is rotatably connected to an arc-shaped movable part (902), and the inner wall of the arc-shaped movable part (902) is in close contact with the external pipeline (8), and a throat clamp (903) is arranged on the outer side of the arc-shaped movable part (902).

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