Rotary joint of electromagnetic heating roller

Abstract

The utility model is suitable for the technical field of rotary joints, and provides a rotary joint of an electromagnetic heating roller. A rotary joint; the fixed ring plate is fixedly mounted on the left side of the rotary joint; the movable ring plate is arranged on the right side of the rotary joint; the rotating part is fixedly mounted on the right side of the movable annular plate and is movably connected with the surface of the rotating joint; and the sliding sealing ring is arranged on the surface of the rotating joint. Compared with the prior art, the sliding sealing ring has the advantages that original surface contact is changed into rolling contact, so that the sliding sealing ring can rotate along with rotation of the electromagnetic heating roller conveniently, abrasion generated during rotation is reduced, the service life of the sliding sealing ring is prolonged, and meanwhile the service life of the sliding sealing ring is prolonged. Due to the fact that the sliding sealing ring is made of metal materials, the situation that the sealing effect is lost when the sliding sealing ring works at high temperature for a long time is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of rotary joints, in particular to an electromagnetic heating roller rotary joint. Background Art

[0002] The electromagnetic heating roller is a heating roller made based on the principle of electromagnetic induction heating of metal. In order to prevent the wires and other structures of the electromagnetic heating roller from twisting, deforming and breaking as the heating roller rotates, a rotating joint is provided to place the central structure and wires and other structures, so as to separate them from the rotating part of the electromagnetic heating roller and avoid twisting, deformation and breakage.

[0003] However, since the electromagnetic heating roller generates high heat when working, the rotary joint will be subjected to long-term high-temperature baking. Since the traditional rotary joint uses a high sealing ring with an adhesive bonding structure when sealing, this structure will lose its sealing effect when working at high temperature for a long time.

[0004] Therefore, how to provide an electromagnetic heating roller rotary joint is a problem that those skilled in the art need to solve urgently. Utility Model Content

[0005] The utility model aims to provide an electromagnetic heating roller rotary joint, aiming to solve the problems mentioned in the background technology.

[0006] The utility model is implemented as follows: an electromagnetic heating roller rotary joint comprises:

[0007] Rotary joints;

[0008] A fixed ring plate, wherein the fixed ring plate is fixedly installed on the left side of the rotary joint;

[0009] A movable ring plate, wherein the movable ring plate is arranged on the right side of the rotary joint;

[0010] A rotating member, which is fixedly mounted on the right side of the movable ring plate and movably connected to the surface of the rotary joint;

[0011] A sliding sealing ring, which is arranged on the surface of the rotary joint and movably abuts against the inner sides of the fixed ring plate and the movable ring plate, and is made of a heat-insulating metal material;

[0012] The rolling structure is arranged on the surfaces of the rotary joint, the fixed ring plate and the movable ring plate and is in rolling contact with the sliding sealing ring.

[0013] Preferably, a thread groove is provided on the right side surface of the rotary joint, the inner side of the rotary member is slidably connected to the thread groove, and a limiting structure is provided on the rotary member and the rotary joint.

[0014] Preferably, the rolling structure includes a first slide groove, a second slide groove, a first ball and a second ball, the first slide groove is opened on the left and right sides of the sliding sealing ring, the second slide groove is opened on the inner side of the sliding sealing ring, the first ball array is arranged on the inner side of the fixed ring plate and the movable ring plate, and is in rolling contact with the sliding sealing ring, and the second ball array is arranged on the surface of the rotary joint and is in rolling contact with the second slide groove.

[0015] Preferably, the limiting structure includes positioning grooves and through holes, the positioning grooves are arranged in a circular array on the surface of the rotary joint, the through holes are arranged in a circular array on the surface of the rotating part, and positioning bolts are movably inserted inside the through holes and the positioning grooves.

[0016] Preferably, the diameters of the fixed ring plate and the movable ring plate are the same, and the inner diameter of the movable ring plate is the same as the diameter of the rotary joint.

[0017] Preferably, the thickness of the sliding sealing ring is equal to the gap between the inner sides of the fixed ring plate and the movable ring plate, and the inner diameter of the sliding sealing ring is the same as the diameter of the rotary joint.

[0018] Preferably, the inner diameter of the rotating member is the same as the diameter of the rotating joint, and the diameter of the rotating member is smaller than the diameter of the movable ring plate.

[0019] Compared with the prior art, the utility model has the following beneficial effects: when in use, a rolling structure is provided between the sliding sealing ring and the rotating joint, the fixed ring plate and the movable ring plate, thereby changing the original surface contact into rolling contact, thereby facilitating the sliding sealing ring to rotate with the rotation of the electromagnetic heating roller, reducing the wear generated during rotation, and extending its service life. At the same time, since the sliding sealing ring is made of metal material, the loss of sealing effect when working at high temperature for a long time is avoided.

[0020] At the same time, by arranging the above-mentioned sliding sealing ring, rotating joint and movable ring plate into a detachable structure, it is convenient to dismantle and replace the problematic parts partially to reduce the scrap amount, and due to the cooperation of the spiral groove and the limiting structure on the rotating joint, the position of the sliding sealing ring, rotating joint and movable ring plate can be limited, thereby facilitating the operation of the above-mentioned rolling structure and sliding sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0022] Figure 1A schematic diagram of the overall appearance structure of an electromagnetic heating roller rotary joint provided in an embodiment of the utility model;

[0023] Figure 2 A schematic diagram of a top cross-sectional structure of an electromagnetic heating roller rotary joint provided in an embodiment of the utility model;

[0024] Figure 3 A schematic diagram of the front cross-sectional structure of an electromagnetic heating roller rotary joint provided in an embodiment of the utility model;

[0025] Figure 4 A right side cross-sectional structural schematic diagram of an electromagnetic heating roller rotary joint provided in an embodiment of the utility model;

[0026] Figure 5 The embodiment of the utility model provides Figure 3 Schematic diagram of the enlarged structure of part A.

[0027] In the figure: 1-rotating joint, 2-fixed ring plate, 3-movable ring plate, 4-sliding sealing ring, 5-first slide groove, 6-first ball, 7-second slide groove, 8-second ball, 9-thread groove, 10-rotating part, 11-positioning bolt, 12-through hole, 13-positioning groove. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0029] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 FIG. 1 is a schematic diagram of the structure of an electromagnetic heating roller rotary joint provided by an embodiment of the utility model, comprising:

[0031] Rotary joint 1;

[0032] A fixed ring plate 2, which is fixedly installed on the left side of the rotary joint 1;

[0033] The movable ring plate 3 is arranged on the right side of the rotary joint 1;

[0034] The rotating member 10 is fixedly mounted on the right side of the movable ring plate 3 and is movably connected to the surface of the rotary joint 1;

[0035] The sliding sealing ring 4 is arranged on the surface of the rotary joint 1 and is movably abutted against the inner sides of the fixed ring plate 2 and the movable ring plate 3, and is made of a heat-insulating metal material;

[0036] The rolling structure is arranged on the surfaces of the rotary joint 1 , the fixed ring plate 2 and the movable ring plate 3 , and is in rolling contact with the sliding sealing ring 4 .

[0037] In the embodiment of the utility model, when in use, the sliding sealing ring 4 is placed on the rotary joint 1 and contacts with the fixed ring plate 2 on the left side, and then the movable ring plate 3 is placed on the right side of the sliding sealing ring 4, and then the rotating member 10 drives the left side of the movable ring plate 3 to abut against the sliding sealing ring 4, so that the rolling structure can work;

[0038] By setting up a rolling structure, the surface contact between the sliding sealing ring 4 and the rotating joint 1, the fixed ring plate 2 and the movable ring plate 3 is transformed into a rolling structure, which not only facilitates the sliding sealing ring 4 to rotate with the rotation of the electromagnetic heating roller to reduce the wear generated during rotation, thereby extending its service life, but also by making the sliding sealing ring 4 of insulating metal material, such as reflective insulation of aluminum alloy-based composite materials, it reduces heat leakage and thus plays a sealing role.

[0039] like Figure 1 , Figure 2 and Figure 3 As shown, as a preferred embodiment of the utility model, a thread groove 9 is provided on the right surface of the rotary joint 1, the inner side of the rotary member 10 is slidably connected to the thread groove 9, and a limiting structure is provided on the rotary member 10 and the rotary joint 1.

[0040] In the embodiment of the utility model, when the rotating member 10 moves to the specified position, the through hole 12 is aligned with the positioning groove 13, and then the positioning bolt 11 is passed through the through hole 12 and screwed to the positioning groove 13, so that the position of the sliding sealing ring 4 is fixed under the cooperation of the above-mentioned thread groove 9;

[0041] By arranging the sliding sealing ring 4, the rotary joint 1 and the movable ring plate 3 into a detachable structure, it is convenient to dismantle them, and the parts with problems can be partially dismantled and replaced, thereby reducing scrap loss.

[0042] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, as a preferred embodiment of the utility model, the rolling structure includes a first slide groove 5, a second slide groove 7, a first ball 6 and a second ball 8. The first slide groove 5 is opened on the left and right sides of the sliding sealing ring 4, the second slide groove 7 is opened on the inner side of the sliding sealing ring 4, the first ball 6 array is arranged on the inner side of the fixed ring plate 2 and the movable ring plate 3, and is in rolling contact with the sliding sealing ring 4, and the second ball 8 array is arranged on the surface of the rotary joint 1, and is in rolling contact with the second slide groove 7.

[0043] In the embodiment of the utility model, when in use, the protruding part of the first ball 6 on the inner side of the fixed ring plate 2 and the movable ring plate 3 enters the first slide groove 5, and the second ball 8 on the right end surface of the rotary joint 1 enters the second slide groove 7 at the bottom of the sliding sealing ring 4, so as to facilitate rotation;

[0044] By setting up the rolling structure, the sliding sealing ring 4 can rotate with the electromagnetic heating roller to reduce the wear caused by rotation, thereby extending its service life. At the same time, since the sliding sealing ring 4 is made of metal material, it avoids the situation where the sealing function is lost when working at high temperature for a long time.

[0045] like Figure 1 , Figure 2 and Figure 3 As shown, as a preferred embodiment of the utility model, the limiting structure includes a positioning groove 13 and a through hole 12. The positioning groove 13 is arranged in a circular array on the surface of the rotary joint 1, and the through hole 12 is arranged in a circular array on the surface of the rotating part 10. The through hole 12 and the positioning groove 13 are internally movably inserted with a positioning bolt 11.

[0046] In the embodiment of the utility model, when the rotating member 10 moves to the specified position, the through hole 12 is aligned with the positioning groove 13, and then the positioning bolt 11 is passed through the through hole 12 and screwed to the positioning groove 13, so that the position of the sliding sealing ring 4 is fixed under the cooperation of the above-mentioned thread groove 9;

[0047] By providing a limiting structure, it is convenient to fix the position of the rotating member 10, thereby conveniently constraining the movable ring plate 3 and the sliding sealing ring 4, thereby facilitating use.

[0048] like Figure 1 , Figure 2 and Figure 3 As shown, as a preferred embodiment of the present invention, the diameters of the fixed ring plate 2 and the movable ring plate 3 are the same, and the inner diameter of the movable ring plate 3 is the same as the diameter of the rotary joint 1 .

[0049] In the embodiment of the utility model, when in use, by making the diameter values ​​of the fixed ring plate 2 and the movable ring plate 3 the same, and the inner diameter value of the movable ring plate 3 the same as the diameter value of the rotary joint 1, it is convenient to adjust the position of the movable ring plate 3 and limit the sliding sealing ring 4.

[0050] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, as a preferred embodiment of the utility model, the thickness of the sliding sealing ring 4 is equal to the gap between the fixed ring plate 2 and the movable ring plate 3, and the inner diameter of the sliding sealing ring 4 is the same as the diameter of the rotary joint 1.

[0051] In the embodiment of the utility model, when in use, by making the thickness value of the sliding sealing ring 4 equal to the gap value on the inner side of the fixed ring plate 2 and the movable ring plate 3, and the inner diameter value of the sliding sealing ring 4 is the same as the diameter value of the rotary joint 1, the operation of the rolling structure is facilitated, and then the rotation is facilitated.

[0052] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, as a preferred embodiment of the present invention, the inner diameter of the rotating member 10 is the same as the diameter of the rotary joint 1 , and the diameter of the rotating member 10 is smaller than the diameter of the movable ring plate 3 .

[0053] In the embodiment of the utility model, when in use, the inner diameter of the rotating member 10 is made the same as the diameter of the rotating joint 1 , and the diameter of the rotating member 10 is smaller than the diameter of the movable ring plate 3 , thereby facilitating rotation.

[0054] The above embodiment of the utility model provides an electromagnetic heating roller rotary joint. When in use, the sliding sealing ring 4 is placed on the rotary joint 1 and contacts with the fixed ring plate 2 on the left, and the second ball 8 on the right end surface of the rotary joint 1 enters the second slide groove 7 at the bottom of the sliding sealing ring 4. Then the movable ring plate 3 is placed on the right side of the sliding sealing ring 4, and then the rotating member 10 is rotated and installed along the threaded groove 9 on the rotary joint 1 until the left side of the rotating member 10 abuts against the sliding sealing ring 4, and the protruding parts of the first ball 6 on the inner sides of the fixed ring plate 2 and the movable ring plate 3 enter the first slide groove 5, so that the sliding sealing ring 4 and the rotary joint 1, the fixed ring plate 2 and the movable ring plate 3 are in surface contact, and become a rolling structure, thereby facilitating the sliding sealing ring 4 to rotate with the rotation of the electromagnetic heating roller and reducing the wear generated during rotation, thereby extending its service life. At the same time, since the sliding sealing ring 4 is made of metal material, it is avoided that the sealing function is lost when working at high temperature for a long time;

[0055] When the rotating part 10 moves to the specified position, the through hole 12 is aligned with the positioning groove 13, and then the positioning bolt 11 is passed through the through hole 12 and screwed to the positioning groove 13, so that with the cooperation of the above-mentioned threaded groove 9, the position of the sliding sealing ring 4 is fixed, and when the sliding sealing ring 4 has a problem, it can be removed and quickly replaced.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electromagnetic heating roller rotary joint, characterized in that: include; Rotary joint (1); A fixed ring plate (2), wherein the fixed ring plate (2) is fixedly mounted on the left side of the rotary joint (1); A movable ring plate (3), wherein the movable ring plate (3) is arranged on the right side of the rotary joint (1); A rotating member (10), wherein the rotating member (10) is fixedly mounted on the right side of the movable ring plate (3) and is movably connected to the surface of the rotating joint (1); A sliding sealing ring (4), the sliding sealing ring (4) is arranged on the surface of the rotary joint (1), and is movably abutted against the inner sides of the fixed ring plate (2) and the movable ring plate (3), and is made of a heat-insulating metal material; A rolling structure is provided on the surfaces of a rotary joint (1), a fixed ring plate (2) and a movable ring plate (3), and is in rolling contact with a sliding sealing ring (4).

2. The electromagnetic heating roller rotary joint according to claim 1, characterized in that: A thread groove (9) is provided on the right side surface of the rotary joint (1), the inner side of the rotary member (10) is slidably connected to the thread groove (9), and a limiting structure is provided on the rotary member (10) and the rotary joint (1).

3. The electromagnetic heating roller rotary joint according to claim 1, characterized in that: The rolling structure comprises a first slide groove (5), a second slide groove (7), a first ball (6) and a second ball (8); the first slide groove (5) is opened on the left and right sides of the sliding sealing ring (4); the second slide groove (7) is opened on the inner side of the sliding sealing ring (4); the first ball (6) array is arranged on the inner side of the fixed ring plate (2) and the movable ring plate (3) and is in rolling contact with the sliding sealing ring (4); the second ball (8) array is arranged on the surface of the rotary joint (1) and is in rolling contact with the second slide groove (7).

4. The electromagnetic heating roller rotary joint according to claim 2, characterized in that: The limiting structure comprises a positioning groove (13) and a through hole (12); the positioning groove (13) is arranged in a circular array on the surface of the rotary joint (1); the through holes (12) are arranged in a circular array on the surface of the rotating member (10); and positioning bolts (11) are movably inserted into the through holes (12) and the positioning grooves (13).

5. The electromagnetic heating roller rotary joint according to claim 1, characterized in that: The diameters of the fixed ring plate (2) and the movable ring plate (3) are the same, and the inner diameter of the movable ring plate (3) is the same as the diameter of the rotary joint (1).

6. The electromagnetic heating roller rotary joint according to claim 1, characterized in that: The thickness of the sliding sealing ring (4) is equal to the clearance between the inner sides of the fixed ring plate (2) and the movable ring plate (3), and the inner diameter of the sliding sealing ring (4) is the same as the diameter of the rotary joint (1).

7. The electromagnetic heating roller rotary joint according to claim 1, characterized in that: The inner diameter of the rotating member (10) is the same as the diameter of the rotating joint (1), and the diameter of the rotating member (10) is smaller than the diameter of the movable ring plate (3).

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