Magnetic drill anti-falling tool

Abstract

This utility model discloses a magnetic drill anti-fall fixture, relating to the technical field of drilling equipment for pin holes in horizontal turbine units. It includes a base plate and a bending plate. The front end of the base plate protrudes outward to form a semi-circular protrusion. A positioning hole is provided at the connection between the semi-circular protrusion and the base plate. The bending plate includes a first vertical plate and a second vertical plate connected together. The bottom end of the second vertical plate is connected to the end of the top surface of the base plate away from the semi-circular protrusion. The bottom end of the first vertical plate is connected to the top surface of the base plate. This utility model solves the problem of magnetic drills falling and injuring people and damaging equipment when drilling pin holes in the runner chamber of horizontal turbine units due to lack of a mounting surface, power failure, or weak magnetic attraction.

Description

Technical Field

[0001] This utility model relates to the technical field of drilling equipment for pin holes in horizontal water turbine units, and in particular to a magnetic drill anti-fall tooling. Background Technology

[0002] A magnetic drill, also known as a magnetic base drill, magnet drill, or magnetic iron drill, works by using an electromagnet in its base to generate a magnetic field after being powered on. This magnetic field attracts the drill to the steel workpiece, and the high-speed rotation of the drill motor drives the drill bit to drill holes or thread the steel plate. A magnetic drill mainly consists of two parts. The first part is the drilling section, which uses a high-speed rotating drill bit to drill, tap, or ream holes in the steel structure. The second part is the attachment section; when powered on, the base of the magnetic drill generates a magnetic field through a changing current, firmly attaching it to the steel structure and ensuring the drill does not move.

[0003] During the replacement and renovation of the runner chamber of a horizontal turbine generator unit, on-site drilling is required for the pin holes in the runner chamber. The magnetic drill is installed at a 90° angle to the upstream and downstream flanges of the runner chamber. The magnetic drill is large and heavy, and the runner chamber flanges do not have sufficient surface space to hold the drill base. Vibration also occurs during drilling. If the electromagnet of the magnetic drill suddenly loses power or the magnetic attraction weakens during drilling, the drill could fall from a height, injuring personnel or damaging equipment. Given the complex on-site construction conditions, only by creating favorable installation conditions for the magnetic drill and implementing measures to prevent power failure and falls can the safety of personnel and equipment be guaranteed.

[0004] Therefore, those skilled in the art have provided a magnetic drill fall prevention fixture to solve the problems mentioned in the background art. Utility Model Content

[0005] This invention provides a magnetic drill anti-fall fixture that prevents magnetic drills from falling and injuring workers or damaging equipment due to their own weight in the event of a sudden power outage or when the magnetic attraction is not secure.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model provides a magnetic drill fall prevention fixture, comprising:

[0008] The base plate has a semi-circular protrusion at its front end, and a positioning hole is provided at the connection between the semi-circular protrusion and the base plate.

[0009] A bending plate, comprising a first vertical plate and a second vertical plate connected together, wherein the bottom end of the second vertical plate is connected to the end of the top surface of the base plate away from the semi-circular protrusion, and the bottom end of the first vertical plate is connected to the top end of the top surface of the base plate.

[0010] Furthermore, the top surface of the base plate is also provided with a vertical plate, which is arranged parallel to the first vertical plate.

[0011] Furthermore, the top of the upright plate and the part near the second vertical plate are connected to the first vertical plate by a first bolt; nuts are respectively provided on the parts of the first bolt located on the outside of the first vertical plate and the upright plate.

[0012] Furthermore, the top of the upright plate is recessed inward to form a first groove.

[0013] Furthermore, a square hole is provided on the upright plate below the first groove.

[0014] Furthermore, two connecting plates are provided on the bottom side of the upright plate away from the first vertical plate. Each connecting plate has a through hole, and the second bolt passes through the corresponding through hole and connects to the connecting seat on the bottom plate.

[0015] In the above technical solution, the magnetic drill anti-fall tooling provided by this utility model has the following beneficial effects: This application solves the problem that when drilling pin holes in the horizontal unit's rotary chamber, the magnetic drill has no mounting surface, or the magnetic drill loses power or the magnetic attraction is not firm, causing it to fall and injure people and equipment. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 A schematic diagram of the structure of a magnetic drill fall prevention fixture provided for an embodiment of this utility model;

[0018] Figure 2 for Figure 1 The main view;

[0019] Figure 3 for Figure 1 Side view;

[0020] Figure 4 for Figure 1 Top view.

[0021] Explanation of reference numerals in the attached figures:

[0022] 10. Base plate; 11. Semi-circular protrusion; 12. Positioning hole; 13. Connecting seat;

[0023] 20. Bending plate; 21. First vertical plate; 22. Second vertical plate;

[0024] 30. Vertical plate; 31. First bolt; 32. First groove; 33. Square hole; 34. Connecting plate; 35. Second bolt. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] See Figure 1-4 As shown;

[0027] The magnetic drill fall prevention fixture described in this embodiment of the utility model includes:

[0028] The base plate 10 has a semi-circular protrusion 11 protruding outward from its front end. A positioning hole 12 is provided at the connection between the semi-circular protrusion 11 and the base plate 10. A positioning bolt is inserted into the positioning hole 12. The positioning bolt passes through the positioning hole 12 and is threadedly connected to the original bolt hole on the flange surface of the wheel chamber to achieve the fixing of the tooling of this application.

[0029] The bending plate 20 includes a first vertical plate 21 and a second vertical plate 22 connected to each other. The bottom end of the second vertical plate 22 is welded to the end of the top surface of the base plate 10 away from the semi-circular protrusion 11. The bottom end of the first vertical plate 21 is welded to the top end of the top surface of the base plate 10. One end of the first vertical plate 21 and one end of the second vertical plate 22 are connected, and the first vertical plate 21 and the second vertical plate 22 are arranged perpendicularly to each other. The perpendicular first vertical plate 21 and the second vertical plate 22 are welded to the ends of the top surface of the base plate 10. The semi-circular protrusion 11 is arranged away from the first vertical plate 21 to avoid obstructing the operation of the magnetic drill bit.

[0030] In practical use, the positioning bolt passes through the positioning hole 12 and is threadedly connected to the bolt hole on the flange surface of the rotary chamber to fix the tooling of this application. When fixed, the bending plate 20 can be tilted so that the first vertical plate 21 and the second vertical plate 22 form a checkerboard shape, so that the bending plate 20 formed between the first vertical plate 21 and the second vertical plate 22 can remain on the bending plate 20 when the magnetic drill falls due to its own weight, avoiding injury to the staff or damage to the equipment. When the magnetic drill is drilling, the magnetic drill can be placed on the second vertical plate 22 and lean against the first vertical plate 21 to prevent the magnetic drill from falling.

[0031] The top surface of the base plate 10 is also provided with a vertical plate 30, which is arranged parallel to the first vertical plate 21. The magnetic drill can work in the space formed by the vertical plate 30, the first vertical plate 21, the second vertical plate 22 and the base plate 10, which can effectively prevent the magnetic drill from falling.

[0032] The top of the vertical plate 30 and the part near the second vertical plate 22 are connected to the first vertical plate 21 by the first bolt 31; nuts are respectively provided on the part of the first bolt 31 located on the outside of the first vertical plate 21 and the vertical plate 30; a magnetic drill can abut against the first bolt 31, the first bolt 31 and the second vertical plate 22 are spaced apart, and the handle of the magnetic drill can be inserted between the first bolt 31 and the second vertical plate 22.

[0033] The top of the upright plate 30 is recessed inward to form a first groove 32, which corresponds to the operation switch position on the side of the magnetic drill to facilitate the operation of the magnetic drill.

[0034] A square hole 33 is provided on the upright plate 30 and below the first groove 32. The square hole 33 is a reserved position for the magnetic drill control switch to facilitate the start and stop operation of the magnetic drill.

[0035] Two connecting plates 34 are provided on the bottom side of the upright plate 30 away from the first vertical plate 21. Each connecting plate 34 has a through hole, and a second bolt 35 passes through the corresponding through hole and connects to the connecting seat 13 on the base plate 10. The connecting plate 34 is welded to the upright plate 30, and the connecting seat 13 is welded to the base plate 10. The upright plate 30 is placed on the base plate 10 by the second bolt 35 connecting the connecting plate 34 and the connecting seat 13. The connecting plate 34 and the connecting seat 13 are connected by the second bolt 35, realizing a detachable mechanism for the upright plate 30 and the base plate 10. Since the magnetic drill is heavy, it is difficult to directly install it into the upright plate 30 and the first vertical plate 21. The detachable structure facilitates the installation and removal of the magnetic drill.

[0036] Both the first bolt 31 and the second bolt 35 in this application are GB / T5780-2000 hexagonal head bolts.

[0037] During operation, an M30 positioning bolt passes through the positioning hole 12 and connects to the threaded hole on the flange face of the rotary chamber. The plate tooling is tilted, and the magnetic drill is placed on the first vertical plate and abuts against the first bolt 31. At the same time, the handle of the magnetic drill is inserted between the first bolt 31 and the second vertical plate 22. Even if the magnetic drill loses power or the magnetic attraction is not firm, it will still be located on the bent plate 20. The first groove 32 and the square hole 33 facilitate the operation of the magnetic drill. The tooling of this application can not only provide an installation surface for the magnetic drill, but also prevent the magnetic drill from falling accidentally, improve the safety of the drilling operation, eliminate safety hazards, and play an important role in safe production.

[0038] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A magnetic drill fall-prevention tool, characterized by, include: The base plate (10) has a semi-circular protrusion (11) protruding outward at its front end, and a positioning hole (12) is provided at the connection between the semi-circular protrusion (11) and the base plate (10). The bending plate (20) includes a first vertical plate (21) and a second vertical plate (22) connected to each other. The bottom end of the second vertical plate (22) is connected to the end of the top surface of the base plate (10) away from the semi-circular protrusion (11), and the bottom end of the first vertical plate (21) is connected to the top end of the top surface of the base plate (10).

2. The magnetic drill fall-protection tool of claim 1, wherein: The top surface of the base plate (10) is also provided with a vertical plate (30), which is arranged parallel to the first vertical plate (21).

3. The magnetic drill fall-protection tool of claim 2, wherein: The top of the vertical plate (30) and the part near the second vertical plate (22) are connected to the first vertical plate (21) by the first bolt (31); nuts are respectively provided on the part of the first bolt (31) located on the outside of the first vertical plate (21) and the vertical plate (30).

4. The magnetic drill fall-protection tool of claim 2, wherein: The top of the upright plate (30) is recessed inward to form a first groove (32).

5. The magnetic drill fall-protection tool of claim 4, wherein: A square hole (33) is provided on the upright plate (30) and below the first groove (32).

6. The magnetic drill fall-protection tool of claim 2, wherein: Two connecting plates (34) are provided on the bottom side of the upright plate (30) away from the first vertical plate (21). Each connecting plate (34) has a through hole. The second bolt (35) passes through the corresponding through hole and connects to the connecting seat (13) on the bottom plate (10).

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