EB furnace screw pump overhauling device

Abstract

The utility model relates to the technical field of screw pump overhauling, and discloses an EB furnace screw pump overhauling device which comprises an overhauling box, the outer wall of the overhauling box is rotationally connected with a rotating handle, the outer wall of the rotating handle is fixedly connected with a half gear, the outer wall of the half gear is rotationally connected with a first connecting rod, and the outer wall of the first connecting rod is fixedly connected with a second connecting rod. A second rotating shaft is rotatably connected to the interior of the box cover, a second connecting rod is fixedly connected to the outer wall of the second rotating shaft, a third rotating shaft is rotatably connected to the interior of the second connecting rod, a first connecting piece is rotatably connected to the outer wall of the half gear, and a second connecting piece is rotatably connected to the outer wall of the first connecting piece; the outer wall of the second connecting piece is rotationally connected with an overhauling table. When the half gear rotates, the lower end of the first connecting rod and the lower end of the first connecting piece are driven to rotate clockwise at the same time, the first connecting piece drives the overhaul stand to ascend through the second connecting piece, the upper end of the first connecting rod drives the box cover to slide, and therefore the effect of synchronizing opening and closing of the box cover and ascending and descending of the overhaul stand is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of screw pump maintenance, in particular to an EB furnace screw pump maintenance device. Background Art

[0002] EB furnace (electron beam melting furnace) is an advanced metal smelting equipment that can achieve rapid melting, purification and alloying of metals, thereby improving the performance of metal materials. In the production process of EB furnace, the screw pump is one of the key components, responsible for transporting molten metal from one area to another. However, in the actual production process, the temperature inside the EB furnace is extremely high, usually above 3000℃, which makes the components of the screw pump easy to wear and age, affecting the normal operation of the pump. Due to the particularity of the working environment of the EB furnace, traditional maintenance methods are difficult to meet the requirements. Disassembly, cleaning, inspection and replacement of pump parts require a lot of time and manpower, and cannot ensure timely recovery and safe production of the pump. In order to solve these problems, an EB furnace screw pump maintenance device is proposed.

[0003] After searching, it was found that the publication number is CN215148907U, which discloses an EB furnace screw pump maintenance device, and relates to the technical field of screw pump maintenance. The utility model includes a maintenance device and an adjustment device, and the adjustment device is arranged inside the maintenance device. The utility model uses the maintenance device for the maintenance of the screw pump, and cooperates with the adjustment device to flexibly adjust the height of the maintenance platform to adapt to the use of different maintenance personnel, thereby improving the practicality and flexibility of the device, solving the problem that maintenance personnel need to squat for a long time when performing maintenance work, causing physical discomfort, improving the comfort of maintenance personnel at work, and facilitating use. Although the application achieves the effect of flexibly adjusting the height of the maintenance platform through the cooperation of the adjustment device, the maintenance device has the problem of poor convenience in actual use, and the height adjustment of the maintenance platform is too cumbersome, resulting in low work efficiency. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides an EB furnace screw pump maintenance device, which is all improved. In actual use, the maintenance device has the problems of poor convenience and too cumbersome adjustment of the height of the maintenance platform, resulting in low work efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an EB furnace screw pump maintenance device, comprising a base plate, the upper surface of the base plate is fixedly connected with an inspection box, the outer wall of the inspection box is rotatably connected with a rotating handle, the outer wall of the rotating handle is fixedly connected with a half gear, the outer wall of the half gear is rotatably connected to the inside of the inspection box, the outer wall of the half gear is rotatably connected with a connecting rod 1, the inside of the connecting rod 1 is fixedly connected with a rotating shaft 1, the outer wall of the rotating shaft 1 is rotatably connected with a box cover, the lower surface of the box cover is slidably connected to the upper surface of the inspection box, the inside of the box cover is rotatably connected with a rotating shaft 2, the outer wall of the rotating shaft 2 is fixedly connected with a connecting rod 2, the inside of the connecting rod 2 is rotatably connected with a rotating shaft 3, the outer wall of the rotating shaft 3 is fixedly connected to the inside of the inspection box, the outer wall of the half gear is rotatably connected with a connecting piece 1, the outer wall of the connecting piece 1 is rotatably connected with a connecting piece 2, the outer wall of the connecting piece 2 is rotatably connected with an inspection platform, the outer wall of the inspection platform is slidably connected to the inside of the inspection box, and a buffer component is provided inside the inspection box.

[0006] Furthermore, the buffer assembly includes a guide rod 1 and a spring 1, both ends of the guide rod 1 are fixedly connected to the outer wall of the maintenance box, and one end of the spring 1 is fixedly connected to the outer wall of the maintenance box.

[0007] Furthermore, the outer wall of the guide rod 1 is slidably connected to a limiting plate, and the outer wall of the limiting plate is fixedly connected to the inside of the box cover.

[0008] Furthermore, the outer wall of the spring 1 is sleeved on the outer wall of the guide rod 1, and one end of the spring 1 is fixedly connected to the outer wall of the limiting plate.

[0009] Furthermore, a tool box is slidably connected to the interior of the maintenance box, and a fixed handle is fixedly connected to the outer wall of the tool box.

[0010] Furthermore, a sliding block is fixedly connected to the outer wall of the tool box, and a second guide rod is slidably connected to the interior of the sliding block.

[0011] Furthermore, both ends of the second guide rod are fixedly connected to the interior of the maintenance box, the outer wall of the second guide rod is sleeved with a second spring, and one end of the second spring is fixedly connected to the outer wall of the slider.

[0012] Furthermore, a partition plate is provided inside the tool box.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, the half gear is driven to rotate by rotating the handle. When the half gear rotates, the lower end of the connecting rod 1 and the lower end of the connecting member 1 are driven to rotate clockwise at the same time. At this time, the connecting member 1 drives the inspection platform to rise through the connecting member 2, and the upper end of the connecting rod 1 drives the box cover to slide. The connecting rod 2 can balance the sliding force of the box cover to make it more stable, thereby achieving the effect of synchronous opening and closing of the box cover and lifting and lowering of the inspection platform, and improving the convenience of the device.

[0015] 2. In the utility model, the tool box is pulled by a fixed handle to slide outward. At this time, the slider on the tool box stretches the spring 2 on the guide rod 2 to slide outward. The guide rod 2 guides the sliding of the tool box, and the spring 2 provides a buffer for it. The partition plate divides the tool box into multiple plates, which is convenient for storing and accessing different tools, thereby achieving the effect of facilitating the removal and placement of tools during maintenance, expanding the function of the device, and making full use of the remaining space inside the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural diagram of an EB furnace screw pump maintenance device proposed by the utility model;

[0017] Figure 2 This is a cross-sectional view of an inspection box of an EB furnace screw pump inspection device proposed by the utility model;

[0018] Figure 3 This is a structural diagram of a limit plate of an EB furnace screw pump maintenance device proposed by the utility model;

[0019] Figure 4 This is a tool box structure diagram of an EB furnace screw pump maintenance device proposed by the utility model.

[0020] Legend:

[0021] 1. Bottom plate; 2. Maintenance box; 3. Turning handle; 4. Half gear; 5. Connecting rod 1; 6. Rotating shaft 1; 7. Connecting rod 2; 8. Rotating shaft 2; 9. Rotating shaft 3; 10. Box cover; 11. Connecting piece 1; 12. Connecting piece 2; 13. Maintenance table; 14. Guide rod 1; 15. Limiting plate; 16. Spring 1; 17. Tool box; 18. Fixed handle; 19. Slider; 20. Guide rod 2; 21. Spring 2; 22. Partition plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Reference Figure 1-2 The utility model provides an embodiment: an EB furnace screw pump maintenance device, comprising a bottom plate 1, a maintenance box 2 is fixedly connected to the upper surface of the bottom plate 1, the outer wall of the maintenance box 2 is rotatably connected to a rotating handle 3, the outer wall of the rotating handle 3 is fixedly connected to a half gear 4, the outer wall of the half gear 4 is rotatably connected to the inside of the maintenance box 2, the outer wall of the half gear 4 is rotatably connected to a connecting rod 5, the inside of the connecting rod 5 is fixedly connected to a rotating shaft 6, the outer wall of the rotating shaft 6 is rotatably connected to a box cover 10, and the lower surface of the box cover 10 is slidably connected to the maintenance box 2, the interior of the box cover 10 is rotatably connected to a rotating shaft 2 8, the outer wall of the rotating shaft 2 8 is fixedly connected to a connecting rod 2 7, the interior of the connecting rod 2 7 is rotatably connected to a rotating shaft 3 9, the outer wall of the rotating shaft 3 9 is fixedly connected to the interior of the maintenance box 2, the outer wall of the half gear 4 is rotatably connected to a connecting piece 11, the outer wall of the connecting piece 11 is rotatably connected to a connecting piece 2 12, the outer wall of the connecting piece 2 12 is rotatably connected to an inspection platform 13, the outer wall of the inspection platform 13 is slidably connected to the interior of the maintenance box 2, and a buffer assembly is provided inside the maintenance box 2.

[0024] Specifically, when the handle 3 is shaken and turned, the two half gears 4 can be synchronously driven to rotate in two opposite directions respectively, so that the box cover 10 is supported to both ends respectively through the two connecting rods 1 5, and the half gear 4 synchronously drives the connecting piece 1 11 and the connecting piece 2 12 on both sides to lift the maintenance platform 13, so that the maintenance platform 13 rises to a position flush with the upper surface of the maintenance box 2. The total length of the connecting piece 1 11 and the connecting piece 2 12 is the rising range of the maintenance platform 13. Therefore, the connecting piece of appropriate length can be selected according to actual needs.

[0025] Reference Figure 3 The buffer assembly includes a guide rod 14 and a spring 16, both ends of the guide rod 14 are fixedly connected to the outer wall of the maintenance box 2, and one end of the spring 16 is fixedly connected to the outer wall of the maintenance box 2; the outer wall of the guide rod 14 is slidably connected to the limit plate 15, and the outer wall of the limit plate 15 is fixedly connected to the inside of the box cover 10; the outer wall of the spring 16 is sleeved on the outer wall of the guide rod 14, and one end of the spring 16 is fixedly connected to the outer wall of the limit plate 15.

[0026] Specifically, when the connecting rod 5 drives one side of the box cover 10 to slide toward both ends, the other side of the box cover 10 is not driven synchronously by a driving mechanism. Therefore, in order to prevent it from getting stuck, a guide rod 14 and a spring 16 are provided. The elastic force of the spring 16 allows the other end of the box cover 10 to slide synchronously on the guide rod 14 to maintain dynamic balance, and the limit plate 15 can prevent the box cover 10 from separating from the maintenance box 2.

[0027] Reference Figure 4A tool box 17 is slidably connected to the interior of the maintenance box 2, and a fixed handle 18 is fixedly connected to the outer wall of the tool box 17; a slider 19 is fixedly connected to the outer wall of the tool box 17, and a guide rod 20 is slidably connected to the interior of the slider 19; both ends of the guide rod 20 are fixedly connected to the interior of the maintenance box 2, and a spring 21 is sleeved on the outer wall of the guide rod 20, and one end of the spring 21 is fixedly connected to the outer wall of the slider 19; a partition plate 22 is provided inside the tool box 17.

[0028] Specifically, the tool box 17 is arranged below the maintenance table 13, which is lower than the bottom height of the maintenance table 13 when it is in the lowest position, so as to avoid the tool box 17 and the maintenance table 13 from colliding and being damaged. The tool box 17 can be pulled out through the fixed handle 18, which is convenient for taking and placing tools. The spring 21 can buffer the tool box 17 and can also drive the tool box 17 to automatically reset when no pulling force is applied to the fixed handle 18. The partition plate 22 divides the interior of the tool box 17 into different sections, which is convenient for storing different types of tools.

[0029] Working principle: When it is necessary to use an EB furnace screw pump maintenance device, first move the device to the maintenance location, then turn the rotating handle 3, which drives the half gear 4 to rotate, and when the half gear 4 rotates, it synchronously drives the connecting rod 15 and the connecting piece 11 to rotate, and when the connecting rod 15 rotates, it pushes the box cover 10 through the rotating shaft 16 to make the box cover 10 slide, and when the box cover 10 slides, it drives the rotating shaft 2 8, so that the rotating shaft 2 8 drives the connecting rod 2 7 to swing around the rotating shaft 3 9, and the box cover 10 drives the limit plate 15 at the same time. The limit plate 15 compresses the spring 16 on the guide rod 14 for buffering. At this time, the connecting piece 11 drives the connecting piece 2 12 to swing, and then the maintenance platform 13 is lifted up to be flush with the upper surface of the maintenance box 2 through the connecting piece 2 12. The screw pump is placed on the maintenance platform 13 for maintenance, and the fixed handle 18 is pulled outward. The fixed handle 18 drives the tool box 17 to slide outward. At this time, the tool box 17 drives the slider 19, so that the slider 19 stretches the spring 21 on the guide rod 20 for buffering.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An EB furnace screw pump maintenance device, comprising a bottom plate (1), characterized in that: The upper surface of the bottom plate (1) is fixedly connected to an inspection box (2); the outer wall of the inspection box (2) is rotatably connected to a rotating handle (3); the outer wall of the rotating handle (3) is fixedly connected to a half gear (4); the outer wall of the half gear (4) is rotatably connected to the interior of the inspection box (2); the outer wall of the half gear (4) is rotatably connected to a connecting rod (5); the interior of the connecting rod (5) is fixedly connected to a rotating shaft (6); the outer wall of the rotating shaft (6) is rotatably connected to a box cover (10); the lower surface of the box cover (10) is slidably connected to the upper surface of the inspection box (2); the interior of the box cover (10) is rotatably connected to the inner surface of the inspection box (2). A rotating shaft 2 (8) is connected, the outer wall of the rotating shaft 2 (8) is fixedly connected to a connecting rod 2 (7), the interior of the connecting rod 2 (7) is rotatably connected to a rotating shaft 3 (9), the outer wall of the rotating shaft 3 (9) is fixedly connected to the interior of the maintenance box (2), the outer wall of the half gear (4) is rotatably connected to a connecting piece 1 (11), the outer wall of the connecting piece 1 (11) is rotatably connected to a connecting piece 2 (12), the outer wall of the connecting piece 2 (12) is rotatably connected to an maintenance platform (13), the outer wall of the maintenance platform (13) is slidably connected to the interior of the maintenance box (2), and a buffer assembly is provided inside the maintenance box (2).

2. The EB furnace screw pump maintenance device according to claim 1 is characterized in that: The buffer assembly comprises a guide rod 1 (14) and a spring 1 (16), both ends of the guide rod 1 (14) are fixedly connected to the outer wall of the maintenance box (2), and one end of the spring 1 (16) is fixedly connected to the outer wall of the maintenance box (2).

3. The EB furnace screw pump maintenance device according to claim 2 is characterized in that: The outer wall of the guide rod 1 (14) is slidably connected to a limiting plate (15), and the outer wall of the limiting plate (15) is fixedly connected to the inside of the box cover (10).

4. The EB furnace screw pump maintenance device according to claim 3 is characterized in that: The outer wall of the spring one (16) is sleeved on the outer wall of the guide rod one (14), and one end of the spring one (16) is fixedly connected to the outer wall of the limiting plate (15).

5. The EB furnace screw pump maintenance device according to claim 1 is characterized in that: A tool box (17) is slidably connected to the interior of the maintenance box (2), and a fixed handle (18) is fixedly connected to the outer wall of the tool box (17).

6. The EB furnace screw pump maintenance device according to claim 5 is characterized in that: The outer wall of the tool box (17) is fixedly connected with a slide block (19), and the interior of the slide block (19) is slidably connected with a second guide rod (20).

7. The EB furnace screw pump maintenance device according to claim 6 is characterized in that: Both ends of the second guide rod (20) are fixedly connected to the inside of the maintenance box (2), the outer wall of the second guide rod (20) is sleeved with a second spring (21), and one end of the second spring (21) is fixedly connected to the outer wall of the slide block (19).

8. The EB furnace screw pump maintenance device according to claim 7 is characterized in that: A partition plate (22) is provided inside the tool box (17).

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