Ingot mold inner wall cleaning device

Abstract

The utility model relates to a cleaning device, in particular to an ingot mold inner wall cleaning device which comprises a fixing frame and a supporting frame fixedly installed in the middle of the fixing frame. A rotating shaft is rotationally mounted between the fixing frame and the supporting frame; the top end of the rotating shaft extends out of the supporting frame and is provided with a driven wheel; a variable frequency motor is fixedly installed on the outer side wall of the supporting frame, a driving wheel is fixedly installed on an output shaft of the variable frequency motor, and the driving wheel and the driven wheel are in meshing transmission through a belt. The bottom end of the rotating shaft extends out of the fixing frame and is provided with a rolling brush; and a plurality of ingot mold positioning pieces which are uniformly distributed along the circumference are arranged on the fixing frame and are used for being fixed with the ingot mold. Through the arrangement of the rolling brush, when the variable frequency motor rotates, the rolling brush is conveniently driven by the rotating shaft connected with the driven belt wheel to clean the inner wall of the steel ingot mold, the manual participation amount is reduced, and the cleaning efficiency is improved; and by arranging the ingot mold positioning piece, the cleaning quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to a cleaning device, in particular to a cleaning device for the inner wall of an ingot mold. Background Technique

[0002] With the continuous progress of precision alloy technology, as key equipment for the melting of iron-based alloys, nickel-based alloys and superalloys, VIM furnaces and VIDP furnaces play a crucial role in the industrial field. However, with the increasing improvement of process requirements, a problem that was once relatively neglected - the quality problem of the inner wall of the ingot mold - has gradually emerged as a major obstacle affecting the efficient and stable operation of VIM furnaces and VIDP furnaces.

[0003] Specifically, if the inner wall of the ingot mold adheres during use, it will not only cause difficult demolding, but also leave serious defects such as pits on the surface of the steel ingot. Even more seriously, the residual material on the inner wall of the ingot mold will contaminate the subsequent melted alloy ingots, causing a series of problems such as element over - standard and unqualified quality, and thus resulting in a huge waste of production resources. Therefore, ensuring the cleanliness of the inner wall of the ingot mold has become an important link in ensuring the stable casting of VIM furnaces and VIDP furnaces and improving the quality of alloy ingots.

[0004] In view of the fact that the ingot mold is a core component of VIM furnaces and VIDP furnaces, the maintenance of the quality of its inner wall is crucial. The ingot mold cleaning machine has emerged as the key tool to solve the inner wall quality problem. In traditional methods, manual cleaning with angle grinders or sandblasters can achieve certain effects, but there are disadvantages such as serious dust pollution, low efficiency, and uneven cleaning quality. Content of the Utility Model

[0005] The purpose of the utility model is to solve the technical problems of low efficiency and uneven cleaning quality of the existing cleaning methods, and to provide a cleaning device for the inner wall of an ingot mold.

[0006] To solve the above - mentioned technical problems, the technical solution provided by the utility model is as follows:

[0007] A cleaning device for the inner wall of an ingot mold includes a fixed frame and a support frame fixedly installed in the middle of the fixed frame;

[0008] A rotating shaft is rotatably installed between the fixed frame and the support frame. The top end of the rotating shaft extends outside the support frame and is provided with a driven wheel; a variable - frequency motor is fixedly installed on the outer side wall of the support frame, and a driving wheel is fixedly installed on the output shaft of the variable - frequency motor. The driving wheel and the driven wheel are meshed and driven by a belt;

[0009] The bottom end of the rotating shaft extends outside the fixed frame and is installed with a rotary brush;

[0010] A plurality of ingot mold positioning members evenly distributed along the circumference are provided on the fixing frame for fixing with the ingot mold.

[0011] Furthermore, the fixing frame includes a circular fixing plate and a plurality of vertical legs fixedly installed at the bottom of the fixing plate.

[0012] Furthermore, the ingot mold positioning member includes a lead screw rotatably installed on the top of the fixing plate along the radial direction of the fixing plate;

[0013] A hand wheel is fixedly installed at one end of the lead screw away from the center of the fixing plate;

[0014] A slider is threadedly installed on the lead screw; a through groove adapted to the slider is formed on the fixing plate, the slider is slidably installed in the through groove, and a claw is installed at the bottom end of the slider.

[0015] Furthermore, the rotary brush includes a brush shaft and a plurality of groups of bristles fixedly installed on the outer side wall of the brush shaft;

[0016] The bristles are any one of steel wires, chains or steel chains.

[0017] Furthermore, an installation groove is formed at the bottom end of the rotating shaft, the top end of the brush shaft is inserted into the installation groove and is connected to the rotating shaft through a pin.

[0018] Furthermore, a counterweight is provided on the top of the fixing plate, and the counterweight is located at a position symmetrical to the frequency conversion motor.

[0019] Furthermore, a plurality of evenly distributed lifting lugs are provided on the top of the fixing plate.

[0020] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0021] 1. The ingot mold inner wall cleaning device provided by the present utility model can realize the control of the motor speed by adopting a frequency conversion motor and a belt drive mode of a driving pulley, a driven pulley and a belt, and has a small starting inertia and high safety performance; by arranging a rotary brush, it is convenient to drive the rotary brush to clean the inner wall of the ingot mold when the frequency conversion motor rotates, reducing the amount of manual participation and improving the cleaning efficiency; by arranging an ingot mold positioning member, it is used to position the center line of the rotary brush and the center line of the inner wall of the ingot mold to ensure the cleaning quality.

[0022] 2. The ingot mold inner wall cleaning device provided by the present utility model, due to adopting the structure of a lead screw and a slider, by rotating the lead screw, the slider can move on the fixing plate to realize the adjustment of the position of the claw; it can be applied to the cleaning of ingot molds of different sizes; at the same time, since the brush shaft and the rotating shaft are connected by a pin, it is convenient to replace the rotary brush to be applicable to the cleaning of the inner wall of ingot molds with different inner diameters. Description of the Drawings

[0023] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model.

[0024] Explanation of reference numerals: 1 is a fixing frame, 11 is a fixing plate, 12 is a vertical leg, 2 is a support frame, 3 is a rotating shaft, 31 is an installation groove, 4 is a driven wheel, 5 is a variable-frequency motor, 6 is a driving wheel, 7 is a belt, 8 is a rolling brush, 81 is a brush shaft, 82 is a brush hair, 9 is an ingot mold positioning member, 91 is a lead screw, 92 is a hand wheel, 93 is a slider, 94 is a through groove, 95 is a claw, 10 is a pin, 13 is a counterweight, 14 is a lifting lug, 15 is an ingot mold. Detailed implementation manners

[0025] Next, the technical solutions in the present utility model will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0026] As Figure 1 shown, a cleaning device for the inner wall of an ingot mold includes a fixing frame 1 and a support frame 2 fixedly installed in the middle of the fixing frame 1; the fixing frame 1 includes a circular fixing plate 11 and a plurality of vertical legs 12 fixedly installed at the bottom of the fixing plate 11.

[0027] As Figure 1 shown, a rotating shaft 3 is rotatably installed between the fixing frame 1 and the support frame 2. The top end of the rotating shaft 3 extends outside the support frame 2 and is provided with a driven wheel 4; a variable-frequency motor 5 is fixedly installed on the outer side wall of the support frame 2. A driving wheel 6 is fixedly installed on the output shaft of the variable-frequency motor 5. The driving wheel 6 and the driven wheel 4 are meshed and driven by a belt 7; the bottom end of the rotating shaft 3 extends outside the fixing frame 1 and is installed with a rolling brush 8; the rolling brush 8 includes a brush shaft 81 and a plurality of groups of brush hairs 82 fixedly installed on the outer side wall of the brush shaft 81; the brush hairs 82 are any one of steel wires, chains or steel chains. By rotating the brush shaft 81, the inner wall of the ingot mold 15 is cleaned by the brush hairs 82 on the surface of the brush shaft 81.

[0028] As Figure 1 shown, the variable-frequency motor 5 is composed of an inverter and a motor. By controlling the frequency of the inverter, the rotation speed of the motor can be controlled. The variable-frequency motor 5 drives the driving pulley to rotate. The driving pulley drives the driven pulley to rotate through the belt 7, further driving the rotating shaft 3 and the brush shaft 81 to rotate. When the brush shaft 81 rotates, the brush hairs 82 on the surface of the brush shaft 81 can clean the inner wall of the ingot mold 15.

[0029] In order to make the center line of the brush shaft 81 coincide with the center line of the inner wall of the ingot mold 15 and facilitate adjustment, asFigure 1 As shown in the figure, there are multiple ingot mold 15 positioning members 9 evenly distributed along the circumference on the fixing frame 1. The ingot mold 15 positioning member 9 includes a lead screw 91, and the lead screw 91 is rotatably installed at the top of the fixing plate 11 along the radial direction of the fixing plate 11; a hand wheel 92 is fixedly installed at one end of the lead screw 91 away from the center of the fixing plate 11; a slider 93 is threadedly installed on the lead screw 91; a through groove 94 adapted to the slider 93 is formed on the fixing plate 11, the slider 93 is slidably installed in the through groove 94, and a claw 95 is installed at the bottom end of the slider 93.

[0030] In order to facilitate the disassembly, assembly and replacement between the rotating shaft 3 and the brush shaft 81, as Figure 1 shown, an installation groove 31 is formed at the bottom end of the rotating shaft 3, the top end of the brush shaft 81 is inserted into the installation groove 31, and is connected to the rotating shaft 3 through a pin 10.

[0031] In order to facilitate finding the lifting position of the ingot mold inner wall cleaning device during the lifting process, as Figure 1 shown, a plurality of evenly distributed lifting lugs 14 are provided at the top of the fixing plate 11; a counterweight 13 is provided at the top of the fixing plate 11, and the counterweight 13 is located at a position symmetrical to the variable frequency motor 5.

[0032] The ingot mold inner wall cleaning device provided by the present utility model is supported by the vertical legs 12 and placed on the ground when not in use.

[0033] During use, the lead screw 91 is rotated through the hand wheel 92, so that the slider 93 slides in the through groove 94 of the fixing plate 11 until the distance between the claw 95 at the bottom of the slider 93 and the outer wall of the ingot mold 15 is 5 cm; the lifting lugs 14 on the fixing plate 11 are hung on the hook of the crane through a steel wire rope, and the fixing frame 1 is lifted by the crane; production personnel select the roller brush 8 with the brush bristles 82 being steel wires, chains or steel chains according to the production process, and connect the brush shaft 81 to the bottom end of the rotating shaft 3 through the pin 10.

[0034] The ingot mold inner wall cleaning device is moved by the crane, so that the roller brush 8 enters the ingot mold 15, and the position of the ingot mold inner wall cleaning device above the ingot mold 15 is gradually lowered until there is a 2 cm distance between the bottom of the fixing frame 1 of the ingot mold inner wall cleaning device and above the ingot mold 15. The hand wheel 92 is finely adjusted to make the claw 95 fit with the outer wall of the ingot mold 15. At the same time, ensure that the center line of the brush shaft 81 coincides with the center line of the ingot mold 15; after the adjustment is completed, lower the ingot mold inner wall cleaning device and remove the crane.

[0035] The variable frequency motor 5 is started, so that the variable frequency motor 5 drives the driving pulley to rotate, the driving pulley drives the driven pulley to rotate through the belt 7, further makes the rotating shaft 3 and the brush shaft 81 rotate, and the inner wall of the ingot mold 15 is cleaned by the brush bristles 82 on the surface of the brush shaft 81.

[0036] During the startup process of the variable-frequency motor 5, the frequency of the frequency converter of the variable-frequency motor 5 can be controlled to make the variable-frequency motor 5 rotate from slow to fast, so as to achieve the purpose of small startup inertia and safety and reliability when starting up.

[0037] As described above, it is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions within the technical scope disclosed by the present utility model should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A cleaning device for the inner wall of an ingot mold, characterized in that: It includes a fixing frame (1) and a support frame (2) fixedly installed in the middle of the fixing frame (1); A rotating shaft (3) is rotatably installed between the fixing frame (1) and the support frame (2). The top end of the rotating shaft (3) extends outside the support frame (2) and is provided with a driven wheel (4). A variable-frequency motor (5) is fixedly installed on the outer side wall of the support frame (2). A driving wheel (6) is fixedly installed on the output shaft of the variable-frequency motor (5). The driving wheel (6) and the driven wheel (4) are meshed and driven by a belt (7); The bottom end of the rotating shaft (3) extends outside the fixing frame (1) and is installed with a rotary brush (8); A plurality of ingot mold (15) positioning members (9) evenly distributed along the circumference are provided on the fixing frame (1) for fixing with the ingot mold (15).

2. The ingot mold inner wall cleaning device according to claim 1, characterized in that: The fixing frame (1) includes a circular fixing plate (11) and a plurality of vertical legs (12) fixedly installed at the bottom of the fixing plate (11).

3. The ingot mold inner wall cleaning device according to claim 2, wherein: The ingot mold (15) positioning member (9) includes a lead screw (91) rotatably installed on the top of the fixing plate (11) along the radial direction of the fixing plate (11); One end of the lead screw (91) far from the center of the fixing plate (11) is fixedly installed with a hand wheel (92); A slider (93) is threadedly installed on the lead screw (91). A through groove (94) adapted to the slider (93) is opened on the fixing plate (11). The slider (93) is slidably installed in the through groove (94), and a claw (95) is installed at the bottom end of the slider (93).

4. The ingot mold inner wall cleaning device according to claim 1, wherein: The rotary brush (8) includes a brush shaft (81) and a plurality of groups of bristles (82) fixedly installed on the outer side wall of the brush shaft (81); The bristles (82) are any one of steel wires, chains or steel chains.

5. The ingot mold inner wall cleaning device according to claim 4, characterized in that: An installation groove (31) is opened at the bottom end of the rotating shaft (3). The top end of the brush shaft (81) is inserted into the installation groove (31) and is connected to the rotating shaft (3) through a pin (10).

6. The ingot mold inner wall cleaning device according to claim 2, characterized in that: A counterweight (13) is provided on the top of the fixing plate (11), and the counterweight (13) is located at a position symmetrical to the variable-frequency motor (5).

7. The ingot mold inner wall cleaning device according to claim 2, characterized in that: A plurality of uniformly distributed lifting lugs (14) are provided on the top of the fixing plate (11).

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