Rotary joint of fan-shaped section of densely-arranged roller

Abstract

The utility model belongs to the technical field of ferrous metallurgy continuous casting, and particularly relates to a rotary joint of a closely-arranged roller fan-shaped section, which comprises a base, a stator, a rotor and a fixing sleeve, the base comprises a bottom plate and a supporting column, the bottom plate and the supporting column are integrally formed, the bottom plate is round, a mounting hole is arranged on the bottom plate, the bottom plate is fixed with a bearing seat through a bolt, and the supporting column is hollow and cylindrical. One side of the bottom of the supporting column is provided with a water inlet hole, an O-shaped ring is arranged on the periphery of the supporting column above the water inlet hole, the top end inside the supporting column is in a step shape, a limiting pin hole and a plurality of spring installation holes are formed in the step, the stator is fixed to the supporting column through a limiting pin, the spring is arranged between the stator and the supporting column, the rotor is arranged above the stator, and the periphery of the top end of the rotor is fixedly connected with the fixing sleeve. The rotor and the stator of the rotary joint are of a flush joint structure, the rotary joint is more stable in operation, the spring is additionally arranged, buffering of the stator and the base is increased, the rotary joint is stable in operation, the deflection angle of the rotary joint is small, and the O-shaped ring is not prone to being damaged.

Description

Technical Field

[0001] The utility model belongs to the technical field of continuous casting in iron and steel metallurgy, and relates to a closely arranged roll segment, in particular to a rotary joint of a closely arranged roll segment. Background Art

[0002] Due to the long-term operation of the closely arranged rolls of the segment under high temperature, circulating cooling water must be used to cool them from the inside out through the rotary joints at both ends of the closely arranged rolls. The rotary joint is a key component connecting the closely arranged rolls and the bearing seat. The rotary joint is installed in the bearing seat at the end of the closely arranged roll through connecting bolts, and the other end is inserted into the guide sleeve of the closely arranged roll through a hollow shaft. The circulating cooling water passes through the inlet and outlet of the rotary joints at both ends to complete the cooling treatment of the rolls; the existing rotary joint has a large deflection angle during operation, and the sealing ring is easily damaged, resulting in water entering the bearing seat of the closely arranged roll, damaging the bearing lubrication, and causing bearing jamming. Content of the Utility Model

[0003] The purpose of the utility model is to provide a rotary joint of a closely arranged roll segment, which solves the problems that the existing rotary joint has a large deflection angle during operation, the sealing ring is easily damaged, resulting in water entering the bearing seat of the closely arranged roll, damaging the bearing lubrication, and causing bearing jamming.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A rotary joint of a closely arranged roll segment includes a base, a stator, a rotor and a fixing sleeve. The base includes a bottom plate and a support column, which are integrally formed. The support column is above the bottom plate. The bottom plate is circular and is provided with mounting holes thereon, and is fixed to the bearing seat through bolts. An O-ring is provided around the intersection of the bottom plate and the support column. The support column is a hollow cylindrical shape. One side of the bottom of the support column is provided with an opening, which is a water inlet hole. An O-ring is provided around the support column above the water inlet hole. The top end inside the support column is stepped, and a limit pin hole and a plurality of spring mounting holes are provided on the step. A limit pin is provided in the limit pin hole. The stator is fixed to the support column through the limit pin. Springs are provided in the spring mounting holes and are placed between the stator and the support column. The rotor is provided above the stator, and a fixing sleeve is fixedly connected to the outer periphery of the top end of the rotor.

[0006] Preferably, a limit pin is provided inside the fixing sleeve, and the rotor is connected to the fixing sleeve through the limit pin.

[0007] Preferably, both the stator and the rotor include a contact head, a support part and a connecting part; the contact head, the support part and the connecting part are integrally formed. The contact heads are all of flat joint structures. The support part is located between the contact head and the connecting part. The connecting part of the stator is at the bottom and the contact head is at the top. A notch is provided around the support part of the stator. The support part is fixed to the support column through a limit pin. An O-ring is provided between the connecting part of the stator and the support column.

[0008] Preferably, a rubber washer is provided around the contact head of the stator, and an elastic retaining ring is provided around the contact head of the rotor. The contact head of the rotor is slidably connected to the contact head of the stator.

[0009] Preferably, a notch is provided at the top of the connecting portion of the rotor. The limit pin penetrates into the notch, and the fixing sleeve is fixed to the close-packed roller. The rotation of the close-packed roller drives the fixing sleeve to rotate, causing the rotor to rotate.

[0010] Preferably, multiple groups of O-rings are provided between the fixing sleeve and the connecting portion of the rotor.

[0011] Preferably, there are 6 springs.

[0012] The beneficial effects achieved by the present utility model are as follows:

[0013] Compared with the traditional plug-in structure of the hollow shaft, the rotor and the stator are of a flat joint structure, and the rotary joint operates more stably. By adding springs, the buffering between the stator and the base is increased, making the rotary joint operate stably. The deflection angle of the rotary joint is small, the O-ring is not easily damaged, the sealing effect is good, water ingress into the close-packed roller bearing seat is avoided, and bearing seizure caused by the destruction of bearing lubrication is prevented. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is a schematic structural diagram of the base of the present utility model;

[0016] Figure 3 is a schematic structural diagram of the bottom plate of the base of the present utility model;

[0017] Figure 4 is a top view of the base of the present utility model;

[0018] Figure 5 is a schematic structural diagram of the stator of the present utility model;

[0019] Figure 6 is a schematic structural diagram of the supporting portion of the stator of the present utility model;

[0020] Figure 7 is a schematic structural diagram of the rotor of the present utility model.

[0021] Description of the reference numerals: 1. Base; 11. Bottom plate; 12. Support column; 13. Mounting hole; 14. Water inlet hole; 15. Limit pin hole; 16. Spring mounting hole; 17. Spring; 2. Stator; 21. Contact head 1; 22. Support portion 1; 23. Connecting portion 1; 3. Rotor; 31. Contact head 2; 32. Support portion 2; 33. Connecting portion 2; 4. Fixing sleeve; 41. Limit pin; 5. O-ring; 6. Elastic retaining ring; 7. Rubber washer. Detailed implementation mode

[0022] The technical solution of the present utility model will be further described below with reference to the accompanying drawings.

[0023] As Figure 1-7 shown, a rotary joint of a closely spaced roll segment includes a base 1, a stator 2, a rotor 3 and a fixing sleeve 4. The base 1 includes a bottom plate 11 and a support column 12. Above the bottom plate 11 is the support column 12. The bottom plate 11 is circular, and an installation hole 13 is provided on the bottom plate 11 and fixed to the bearing seat by bolts. An O-ring 5 is provided on the periphery at the junction of the bottom plate 11 and the support column 12. The support column 12 is a hollow cylindrical shape, and there is an opening on one side at the bottom of the support column 12, which is a water inlet hole 14. An O-ring 5 is provided on the periphery of the support column 12 above the water inlet hole 14. The top end inside the support column 12 is stepped, and a limit pin hole 15 and six spring installation holes 16 are provided on the step. A limit pin is provided in the limit pin hole 15. The stator 2 includes a first contact head 21, a first support part 22 and a first connecting part 23. The first contact head 21, the first support part 22 and the first connecting part 23 are integrally formed. The first support part 22 is located between the first contact head 21 and the first connecting part 23. There is a notch on the periphery of the first support part 22 and it is fixed to the support column 12 by a limit pin. Springs 17 are provided in the spring installation holes 16 and are placed between the first support part 22 and the support column 12. The first contact head 21 faces upward, and an O-ring 5 is provided between the first connecting part 23 and the support column 12. The rotor 3 includes a second contact head 31, a second support part 32 and a second connecting part 33; the second contact head 31 is slidably connected above the first contact head 21. Both the first contact head 21 and the second contact head 31 are of a flat connection structure. There is a notch at the top end of the second connecting part 33. The fixing sleeve 4 is fixed to the second connecting part 33 by an internal limit pin 41, and multiple groups of O-rings 5 are provided between the fixing sleeve 4 and the second connecting part 33; both the first contact head and the second contact head adopt a flat connection structure. By adding springs, the buffer between the stator and the base is increased, making the rotary joint operate more stably. The deflection angle of the rotary joint is small, and the O-ring is not easily damaged, avoiding water ingress into the closely spaced roll bearing seat.

[0024] As Figure 1 shown, a rubber gasket 7 is provided on the periphery of the first contact head 21, and an elastic gasket 6 is provided on the periphery of the second contact head 31; by adding a rubber gasket and an elastic gasket, the buffer between the rotor and the stator is increased, reducing the friction between the rotor and the stator, preventing the rotor and the stator from being damaged by friction, and extending the service life of the equipment.

[0025] The rotation principle of the rotary joint: The base 1 is fixed to the bearing seat by bolts. The stator 2 is fixed inside the base 1 by a limit pin. The stator 2 is slidably connected to the rotor 3. The fixing sleeve 4 is fixedly connected to the outside of the rotor 3. The fixing sleeve 4 is fixed to the closely spaced roll. When the closely spaced roll rotates, it drives the fixing sleeve 4 to rotate, causing the rotor 3 to rotate.

Claims

1. A rotary joint of closely spaced roller segments, characterized in that: The invention comprises a base (1), a stator (2), a rotor (3) and a fixing sleeve (4), wherein the base (1) comprises a bottom plate (11) and a supporting column (12), wherein the bottom plate (11) and the supporting column (12) are integrally formed, wherein the supporting column (12) is disposed above the bottom plate (11), wherein the bottom plate (11) is circular, wherein a mounting hole (13) is disposed on the bottom plate (11) and the bottom plate (11) is fixed to a bearing seat by bolts, wherein an O-ring (5) is disposed on the periphery of the junction between the bottom plate (11) and the supporting column (12), wherein the supporting column (12) is hollow cylindrical, wherein a hole is opened on one side of the bottom of the supporting column (12) for A water inlet hole (14) is provided, an O-ring (5) is arranged on the periphery of the support column (12) above the water inlet hole (14), the top end of the support column (12) is stepped, a limit pin hole (15) and a plurality of spring mounting holes (16) are arranged on the step, a limit pin is arranged in the limit pin hole (15), the stator (2) is fixed to the support column (12) via the limit pin, a spring (17) is arranged in the spring mounting hole (16) and is disposed between the stator (2) and the support column (12), a rotor (3) is arranged above the stator (2), and the top periphery of the rotor (3) is fixedly connected to the fixing sleeve (4).

2. A rotary joint of closely spaced roller segments according to claim 1, characterized in that: A limit pin (41) is provided inside the fixing sleeve (4), and the rotor (3) is connected to the fixing sleeve (4) via the limit pin (41).

3. A rotary joint of closely spaced roller segments according to any one of claims 1 or 2, characterized in that: The stator (2) and the rotor (3) both comprise a contact head, a support portion and a connection portion; the contact head is a flat-joint structure, the contact head, the support portion and the connection portion are integrally formed, the support portion is located between the contact head and the connection portion, the connection portion of the stator is at the bottom and the contact head is at the top, a notch is provided around the stator support portion, the support portion is fixed to the support column (12) by a limit pin, and an O-ring (5) is provided between the connection portion of the stator (2) and the support column (12).

4. A rotary joint of closely spaced roller segments according to claim 3, characterized in that: A rubber gasket (7) is provided on the periphery of the contact head of the stator (2), and an elastic retaining ring (6) is provided on the periphery of the contact head of the rotor (3); the contact head of the rotor (3) is slidably connected to the contact head of the stator.

5. A rotary joint of closely spaced roller segments according to claim 4, characterized in that: A notch is provided at the top end of the connecting portion of the rotor (3), and the limit pin penetrates into the notch.

6. A rotary joint of closely spaced roller segments according to claim 5, characterized in that: A plurality of groups of O-rings (5) are provided between the connection portion between the fixing sleeve (4) and the rotor.

7. A rotary joint of closely spaced roller segments according to claim 1, characterized in that: There are six springs (17).

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