Crystallizer inner hole grinding device
By using a transmission flexible shaft and support frame structure, combined with an extension rod, the problem of internal grinding of large crystallizers was solved, achieving a low-cost and high-efficiency grinding effect.
Patent Information
- Application Number
- CN202423308915.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing crystallizer polishing equipment is insufficient for effectively polishing the interior of large crystallizers. Automatic polishing machines are costly, while handheld equipment is inconvenient to operate and labor-intensive.
By adopting a transmission flexible shaft and support frame structure, combined with an extension rod, the grinding head can be inserted into the crystallizer for grinding, reducing the difficulty of operation and labor intensity.
This technology enables efficient grinding of the inside of the crystallizer, reducing production costs and labor intensity, and improving operational convenience and efficiency.
Smart Images

Figure CN223617367U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of crystallizer grinding technology, and in particular to a crystallizer inner hole grinding device. Background Technology
[0002] The crystallizer is a crucial component of a continuous casting machine. It is a forced water-cooled, bottomless ingot mold, often referred to as the "heart" of the continuous casting equipment. Crystallizers are typically made of hollow steel columns. During operation, an oxide layer easily forms on the inner wall of the crystallizer, requiring treatment.
[0003] Existing polishing tools generally include automatic polishing machines, handheld polishing machines, or internal grinders. Automatic polishing machines are generally expensive and have strict requirements on the size of the crystallizer. Furthermore, for large crystallizers, which are typically 4-5 meters long or even longer, automatic polishing machines struggle to handle such lengths. Even if they could, the machine's overall size would be large, increasing procurement costs. Handheld polishing machines or internal grinders have lower procurement costs, but they can only polish the ends of the crystallizer. Especially for crystallizers whose internal dimensions cannot accommodate an adult's body, workers are limited by arm length and can only polish the ends, leaving the middle unpolished. This still presents inconvenience and is labor-intensive.
[0004] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content
[0005] To address the aforementioned shortcomings, the purpose of this utility model is to provide a crystallizer inner hole grinding device. Through a transmission flexible shaft, the operation of the grinding head is made more convenient, and the grinding head can be extended into the interior of the crystallizer for grinding. The production cost is low, and the use of the extension rod and support frame reduces labor intensity and improves labor efficiency.
[0006] To achieve the above objectives, this utility model provides a crystallizer inner hole grinding device, comprising: a motor, a transmission flexible shaft, and a grinding head. The output end of the motor is fixedly connected to the transmission flexible shaft, and the end of the transmission flexible shaft is provided with a grinding head mounting joint. The grinding head is fixedly connected to the mounting joint.
[0007] The crystallizer inner hole grinding device according to this utility model also includes a support frame, and the transmission flexible shaft is connected to the support frame.
[0008] According to the crystallizer inner hole grinding device of this utility model, the support frame includes: a vertical rod and an auxiliary rod fixed on the vertical rod, wherein the auxiliary rod is inclined upward and fixed on the vertical rod.
[0009] According to the crystallizer inner hole grinding device of this utility model, a rolling element is sleeved on the auxiliary rod.
[0010] According to the crystallizer inner hole grinding device of this utility model, the rolling element is a bearing.
[0011] The crystallizer inner hole grinding device according to this utility model also includes a support frame and an extension rod. The extension rod is fixedly connected to the output end of the transmission flexible shaft and overlaps the support frame.
[0012] According to the crystallizer inner hole grinding device of this utility model, the support frame includes: a vertical rod and an auxiliary rod fixed on the vertical rod, wherein the auxiliary rod is inclined upward and fixed on the vertical rod.
[0013] According to the crystallizer inner hole grinding device of this utility model, a rolling element is sleeved on the auxiliary rod.
[0014] The purpose of this utility model is to provide a crystallizer inner hole grinding device, comprising: a motor, a transmission flexible shaft, and a grinding head. The output end of the motor is fixedly connected to the transmission flexible shaft, and the end of the transmission flexible shaft is provided with a grinding head mounting joint, the grinding head being fixedly connected to the mounting joint. This application utilizes the transmission flexible shaft to make the operation of the grinding head more convenient, allowing the grinding head to extend into the interior of the crystallizer for grinding. This results in low production costs. Furthermore, the use of an extension rod and support frame reduces labor intensity and improves labor efficiency. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a structural schematic diagram of the support frame of this utility model;
[0017] In the diagram: 1-motor, 2-drive flexible shaft, 3-grinding head, 4-upright rod, 5-auxiliary rod, 51-rolling element, 6-extension rod. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.
[0019] See Figures 1-2This utility model provides a crystallizer inner hole grinding device, including: a motor 1, a transmission flexible shaft 2, and a grinding head 3. The output end of the motor 1 is fixedly connected to the transmission flexible shaft 2, and the end of the transmission flexible shaft 2 is provided with a grinding head 3 mounting joint, which is fixedly connected to the mounting joint. When the motor 1 rotates, it drives the inner core of the transmission flexible shaft 2 to rotate, thereby driving the grinding head 3 at the end of the transmission flexible shaft 2 to rotate. Grinding is performed by hand holding the transmission flexible shaft 2. Because the transmission flexible shaft 2 is flexible and has a certain strength, grinding can be performed by hand holding the transmission flexible shaft 2. When a long, large crystallizer needs to be ground, it is impossible for a person to enter the inside of the crystallizer. Traditional polishing machines and handheld internal grinders cannot reach into the inside of the crystallizer, thus making grinding impossible.
[0020] In a preferred embodiment of this application, a support frame is also included, with the flexible drive shaft 2 resting on the support frame. Because the flexible drive shaft 2 is relatively long, it tends to sag naturally. Dragging it manually is difficult and could easily trip nearby workers, posing a safety hazard. Resting the flexible drive shaft 2 on the support frame provides support, facilitating worker operation and serving as a warning.
[0021] Furthermore, the support frame includes: a vertical pole 4 and an auxiliary rod 5 fixed to the vertical pole 4, the auxiliary rod 5 being fixed upwardly at an angle to the vertical pole 4. The vertical pole 4 and the auxiliary rod 5 form a certain angle, which can support the transmission flexible shaft 2.
[0022] Furthermore, a rolling element 51 is sleeved on the auxiliary rod 5. The rolling element 51 can reduce the friction between the auxiliary rod 5 and the transmission flexible shaft 2, making it easier for workers to operate.
[0023] Furthermore, the rolling element 51 is a bearing, which is sleeved on the auxiliary rod 5 for easy installation and disassembly. At the same time, the bearing steel is wear-resistant and has a long service life.
[0024] Furthermore, the rolling element 51 is a sleeve, which is inexpensive and reduces the cost of use.
[0025] In another preferred embodiment of this application, a support frame and an extension rod 6 are also included. The extension rod 6 is fixedly connected to the output end of the transmission flexible shaft 2 and overlaps the support frame. Since the transmission flexible shaft 2 is flexible, the grinding head 3 may sag when the hand position is far from the grinding head 3, making grinding inconvenient. In this case, the transmission flexible shaft 2 is fixed to the extension rod, and the extension rod 6 overlaps the support frame. By holding one end of the extension rod 6 or the end of the transmission flexible shaft 2, it is possible to extend it into the crystallizer for grinding. This method is convenient for workers, saves effort, and is highly efficient. The extension rod 6 is fixedly connected to the transmission flexible shaft by binding or snapping.
[0026] Furthermore, the support frame includes: a vertical pole 4 and an auxiliary rod 5 fixed to the vertical pole 4. The auxiliary rod 5 is fixed upwardly to the vertical pole 4, and a rolling element 51 is sleeved on the auxiliary rod 5. An extension rod 6 overlaps the auxiliary rod 5, and the rolling element 51 can reduce the friction between the auxiliary rod 5 and the extension rod 6.
[0027] In summary, this utility model provides a crystallizer inner hole grinding device, comprising: a motor, a transmission flexible shaft, and a grinding head. The output end of the motor is fixedly connected to the transmission flexible shaft, and the end of the transmission flexible shaft is provided with a grinding head mounting joint, the grinding head being fixedly connected to the mounting joint. The beneficial effects of this utility model are: the transmission flexible shaft makes the operation of the grinding head more convenient, allowing the grinding head to extend into the interior of the crystallizer for grinding; production costs are low; and the use of an extension rod and support frame reduces labor intensity and improves labor efficiency.
[0028] Of course, there may be many other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.
Claims
1. A crystallizer inner hole grinding device, characterized in that, include: The device includes a motor, a flexible drive shaft, and a grinding head. The output end of the motor is fixedly connected to the flexible drive shaft, and the end of the flexible drive shaft is provided with a grinding head mounting joint. The grinding head is fixedly connected to the mounting joint.
2. The crystallizer inner hole grinding device according to claim 1, characterized in that, It also includes a support frame, to which the drive shaft is connected.
3. The crystallizer inner hole grinding device according to claim 2, characterized in that, The support frame includes: an upright and an auxiliary rod fixed to the upright, the auxiliary rod being fixed to the upright at an upward angle.
4. The crystallizer inner hole grinding device according to claim 3, characterized in that, A rolling element is fitted onto the auxiliary rod.
5. The crystallizer inner hole grinding device according to claim 4, characterized in that, The rolling element is a bearing.
6. The crystallizer inner hole grinding device according to claim 1, characterized in that, It also includes a support frame and an extension rod, wherein the extension rod is fixedly connected to the output end of the transmission flexible shaft and overlaps the support frame.
7. The crystallizer inner hole grinding device according to claim 6, characterized in that, The support frame includes: an upright and an auxiliary rod fixed to the upright, the auxiliary rod being fixed to the upright at an upward angle.
8. The crystallizer inner hole grinding device according to claim 7, characterized in that, A rolling element is fitted onto the auxiliary rod.