Rotary joint support for free roll of continuous casting machine

Abstract

The utility model discloses a continuous casting machine free roller rotating joint support which comprises a support body, the support body is installed at the end of the outer side of a bearing seat, a first inner cavity is formed in the support body, an observation hole communicated with the first inner cavity is formed in the bottom of the support body, and an inlet and outlet is formed in the right side of the support body. The access cover is inserted into the support body, a second inner cavity communicated with the inlet and outlet is formed in the access cover, one end of the rotary joint is fixedly connected with the access cover, and the other end of the rotary joint is movably connected with the end part of the roller body; the quick dismounting mechanism is used for detachably mounting the access cover on the support body; the butt joint device comprises two butt joint units which are symmetrical up and down, each butt joint unit comprises a first connecting block installed at the outer side end of the access cover, a second connecting block which is arranged on a support body and corresponds to the first connecting block in position, and a handle hinged to the first connecting block. And the primary locking mechanism is used for locking and fixing the handle. The design facilitates overhaul and maintenance of the rotary joint.

Description

Technical Field

[0001] This utility model relates to the field of accessories for continuous casting machines, and in particular to a support for a free roll rotary joint of a continuous casting machine. Background Technology

[0002] The free roll of a continuous casting machine comes into contact with high-temperature billets during use and needs to be cooled down to maintain its performance. The main cooling method is water cooling, which involves installing cooling water pipes inside the free roll and installing rotary joints at both ends of the free roll, which are connected to external cooling water. The cooling water circulates in the cooling water pipes to remove the heat absorbed by the free roll.

[0003] The aforementioned free roll of the continuous casting machine includes a bearing housing, a roll body, an embedded rotary joint, and a support; wherein the support is installed on the outside of the bearing housing by bolts, and the embedded rotary joint is located inside the support, with one end fixedly connected to the support and the other end movably sealed to the end of the roll body; for detailed structure, please refer to the utility patent with authorization announcement number CN202741708U.

[0004] Embedded rotary joints are consumable parts that require regular inspection and maintenance. Currently, the general practice is to first remove the entire support and then inspect and maintain the rotary joint, which is labor-intensive, inconvenient, and inefficient. In addition, continuous casting machines have many free rolls, which naturally results in a large number of rotary joints, making the problem of inconvenient inspection and replacement of rotary joints and the large workload even more prominent. Utility Model Content

[0005] The purpose of this invention is to provide a support for the free roll rotary joint of a continuous casting machine that facilitates inspection and maintenance of the rotary joint.

[0006] The purpose of this utility model is achieved as follows: a free roll rotary joint support for a continuous casting machine; the free roll includes a bearing housing, a roll body, and a rotary joint; the support includes a support body, which is detachably installed on the outer end of the bearing housing, and has a first inner cavity inside, with an observation hole at the bottom communicating with the first inner cavity, and an inlet and outlet on the right side; a maintenance cover, which is detachably inserted into the support body, and has a second inner cavity communicating with the inlet and outlet, one end of the rotary joint being fixedly connected to the maintenance cover and communicating with the inside of the second inner cavity, and the other end being movably connected to the end of the roll body; a quick-release mechanism, which is used to detachably install the maintenance cover onto the support body; it includes two symmetrically arranged docking units, each of which includes a first connecting block installed on the outer end of the maintenance cover, a second connecting block disposed on the support body and positioned corresponding to the first connecting block, a handle hinged to the first connecting block, and a preliminary locking mechanism for locking the handle.

[0007] The second connecting block is provided with two symmetrically arranged limiting protrusions; the handle includes two symmetrically arranged connecting plates hinged to the first connecting block, and handles that are retractably mounted on the two connecting plates at both ends; each connecting plate is provided with a guide rail and an opening corresponding to the limiting protrusions; the preliminary locking mechanism includes a locking hole provided at the end of the first connecting block, and a locking knob provided on the handle that corresponds to the locking hole.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: the support provided by this utility model facilitates the inspection and maintenance of the rotary joint; specifically, a quick-release inspection cover is added to the support body, which can be quickly removed without tools, thus facilitating inspection; in addition, an observation hole connected to the first inner cavity of the support body is added. Once water flows out of the observation hole, it indicates that the relevant seals of the rotary joint are damaged and need to be replaced. It is possible to determine whether the rotary joint seals are damaged without disassembling the support.

[0009] As a preferred embodiment of this utility model, the support further includes a secondary locking mechanism for connecting and fixing the inspection cover to the support body. The secondary locking mechanism includes a limiting groove disposed on the inner side of the inspection cover, and a limiting knob disposed on the left side of the support body, with its inner end cooperating with the limiting groove. This design is simple in structure, reliable in locking, and further improves the connection safety of the inspection cover, preventing accidental opening of the inspection cover.

[0010] Furthermore, the aforementioned observation port is equipped with a detachable observation bottle made of transparent material. This design facilitates observation.

[0011] Furthermore, a sealing ring is provided at the mating point between the inner side of the aforementioned inspection cover and the support body. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the present invention, in which the quick-release mechanism is in the connected and fixed state.

[0013] Figure 2 This is a schematic diagram of the structure of the present invention, in which the quick-release mechanism is in a state of being ready to be connected.

[0014] Figure 3 This is a left view of the present invention, showing the quick-release mechanism in the connected and fixed state.

[0015] Figure 4 This is a schematic diagram showing the cooperation relationship between the opening end of the connecting plate and the limiting protrusion of the present invention.

[0016] Figure 5 This is a schematic diagram showing the cooperation relationship between the support described in this utility model and the free roll of the continuous casting machine.

[0017] Among them, 1 is bearing housing, 1a is bearing, 2 is roller body, 3 is rotary joint, 4 is support body, 5 is first inner cavity, 6 is observation hole, 6a is observation bottle, 7 is inlet and outlet, 8 is inspection cover, 8a is second inner cavity, 8b is sealing ring, 9 is first connecting block, 10 is second connecting block, 10a is limiting protrusion, 11 is handle, 11a is connecting plate, 11b is guide rail, 11c is opening, 11d is handle, 12 is locking hole, 13 is locking knob, 14 is limiting groove, and 15 is limiting knob. Detailed Implementation

[0018] The above-mentioned and other technical features and advantages of this utility model will be described in more detail below with reference to the accompanying drawings.

[0019] Combined with appendix Figure 1-5 As shown, a rotary joint support for a free roll of a continuous casting machine is disclosed. The free roll includes a bearing housing 1, a roll body 2, and a rotary joint 3. The support includes a support body 4, which is detachably installed on the outer end of the bearing housing 1. The support body 4 has a first inner cavity 5, an observation hole 6 communicating with the first inner cavity 5 at its bottom, and an inlet / outlet 7 on its right side. An inspection cover 8 is detachably inserted into the support body 4, and has a second inner cavity 8a communicating with the inlet / outlet 7. One end of the rotary joint 3 is fixedly connected to the inspection cover 8 and communicates with the interior of the second inner cavity 8a, while the other end is movably connected to the end of the roll body 2. A quick-release mechanism is used to detachably install the inspection cover 8 onto the support body 4. This mechanism includes two symmetrically arranged docking units, each of which includes a component installed on the outer end of the inspection cover 8. The first connecting block 9 also includes a second connecting block 10 disposed on the support body 4 and positioned corresponding to the first connecting block 9, a handle 11 hinged to the first connecting block 9, and a preliminary locking mechanism for locking and fixing the handle 11; the second connecting block 10 is provided with two symmetrically arranged limiting protrusions 10a; the handle 11 includes two symmetrically arranged connecting plates 11a hinged to the first connecting block 9, and a handle 11d that is retractably mounted on the two connecting plates 11a at both ends; each connecting plate 11a is provided with a guide rail 11b and an opening 11c positioned corresponding to the limiting protrusions 10a; the preliminary locking mechanism includes a locking hole 12 disposed at the end of the first connecting block 9, and a locking knob 13 disposed on the handle 11d and positioned corresponding to the locking hole 12.

[0020] The support also includes a secondary locking mechanism for connecting the maintenance cover 8 and the support body 4. The secondary locking mechanism includes a limiting groove 14 disposed on the inner side of the maintenance cover 8, and a limiting knob 15 disposed on the left side of the support body 4, the inner end of which cooperates with the limiting groove 14. It should be noted that when it is locked, tightening the limiting knob 15 causes the end of the limiting knob 15 to extend into the limiting groove 14, thereby limiting the axial position of the maintenance cover 8.

[0021] The aforementioned observation hole 6 is equipped with a detachable observation bottle 6a made of transparent material. It should be noted that if the relevant seals in the rotary joint 3 or the support body 4 are damaged, cooling water can easily seep into the first inner cavity 5 and then flow out from the observation hole 6 and into the observation bottle 6a. Therefore, if water is found to accumulate in the observation bottle 6a, it can be determined that the seals of the rotary joint 3 are likely damaged and need to be repaired.

[0022] A sealing ring 8b is provided at the mating point between the inner side of the inspection cover 8 and the support body 4.

[0023] When removing the access cover,

[0024] First, release the secondary locking mechanism, that is, loosen the limit knob 15 so that its limit end is disengaged from the limit groove 14;

[0025] Next, release the initial locking mechanism by loosening the locking knob 13 to disengage it from the locking hole 12;

[0026] Next, the quick-release mechanism is disengaged, that is, the handle 11d is pulled out, and the handle 11 is flipped inward to a horizontal state through the handle 11d; as the handle 11 is flipped, under the action of the guide rail 11b on the connecting plate 11a and the limiting protrusion 10a, the gap between the first connecting block 9 and the second connecting block 10 gradually increases. When the handle 11 is flipped to a horizontal state, the limiting protrusion 10a is located at the opening 11c at the lower end of the guide rail 11b. Its principle is similar to the switch handle of a manual maintenance switch.

[0027] Finally, simply pull out the inspection cover 8 by grasping the handle 11d to inspect the rotary joint 3.

[0028] When installing the inspection cover

[0029] First, fix one end of the repaired rotary connector 3 into the second inner cavity 8a of the inspection cover 8;

[0030] Next, the inspection cover 8 is inserted into the support body 4, and the position of the inspection cover 8 is adjusted so that the first connecting block 9 is aligned with the second connecting block 10.

[0031] Next, the quick-release mechanism is installed, that is, after alignment, it continues to move forward, while adjusting the handle 11 to a horizontal state so that the opening 11c at the lower end of the guide rail 11b mates with the limiting protrusion 10a. Then, the inspection cover 8 continues to move forward. Under the action of the guide rail 11b and the limiting protrusion 10a on the connecting plate 11a, the handle 11 gradually reverses outward to a vertical state. During this period, the gap between the first connecting block 9 and the second connecting block 10 gradually decreases until they abut against each other.

[0032] Next, the initial locking mechanism is tightened by retracting the handle 11d and tightening the locking knob 13 to engage with the locking hole 12.

[0033] Finally, the secondary locking mechanism is tightened by turning the limit knob 15 to engage with the limit groove 14.

[0034] This utility model is not limited to the above embodiments. Based on the technical solutions disclosed in this utility model, those skilled in the art can make some substitutions and modifications to some of the technical features without creative labor, and these substitutions and modifications are all within the protection scope of this utility model.

Claims

1. A rotary joint support for a free roll of a continuous casting machine; the free roll includes a bearing housing (1), a roll body (2), and a rotary joint (3); characterized in that: The support includes The support body (4) is detachably installed on the outer end of the bearing seat (1), and has a first inner cavity (5) inside. The bottom of the support body (4) is provided with an observation hole (6) connected to the first inner cavity (5), and the right side of the support body (4) is provided with an inlet and outlet (7). Inspection cover (8), the inspection cover (8) is detachably inserted into the support body (4), and has a second inner cavity (8a) connected to the inlet and outlet (7). One end of the rotary joint (3) is fixedly connected to the inspection cover (8) and connected to the inside of the second inner cavity (8a), and the other end is movably connected to the end of the roller body (2). The quick-release mechanism is used to detachably install the inspection cover (8) onto the support body (4); it includes two symmetrical docking units, each of which includes a first connecting block (9) installed on the outer end of the inspection cover (8), a second connecting block (10) disposed on the support body (4) and positioned corresponding to the first connecting block (9), a handle (11) hinged to the first connecting block (9), and a preliminary locking mechanism for locking the handle (11); The second connecting block (10) is provided with two symmetrically arranged limiting protrusions (10a); the handle (11) includes two symmetrically arranged connecting plates (11a) hinged to the first connecting block (9), and also includes handles (11d) that are telescopically mounted on the two connecting plates (11a) at both ends; each connecting plate (11a) is provided with a guide rail (11b) and an opening (11c) corresponding to the limiting protrusions (10a); the preliminary locking mechanism includes a locking hole (12) provided at the end of the first connecting block (9), and also includes a locking knob (13) provided on the handle (11d) that is corresponding to the locking hole (12).

2. The continuous casting machine free roll rotary joint support according to claim 1, characterized in that: The support also includes a secondary locking mechanism for connecting the fixed inspection cover (8) and the support body (4). The secondary locking mechanism includes a limiting groove (14) provided on the inner side of the inspection cover (8) and a limiting knob (15) provided on the left side of the support body (4) with its inner end cooperating with the limiting groove (14).

3. A continuous casting machine free roll rotary joint support according to claim 1 or 2, characterized in that: The observation hole (6) is provided with a detachable observation bottle (6a) made of transparent material.

4. A continuous casting machine free roll rotary joint support according to claim 1 or 2, characterized in that: A sealing ring (8b) is provided at the mating point between the inner side of the inspection cover (8) and the support body (4).

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