Scrap iron cleaning tool for magnetic yoke key groove

Abstract

The utility model discloses a scrap iron cleaning tool for a magnet yoke keyway, which is characterized in that the scrap iron cleaning tool comprises a magnetic suction head and a connecting handle, a plurality of magnets are arranged on the magnetic suction head, the connecting handle is connected with one end of the magnetic suction head, and the size of the magnetic suction head is smaller than that of the magnet yoke keyway. Through the customized design of the magnetic suction head and the limiting boss, the stability and the positioning accuracy of the cleaning tool in the magnetic yoke key groove are ensured, and the jamming problem during use is reduced. The connecting handle part is designed to be of an assembled structure, the length can be adjusted according to use requirements, and the device is suitable for cleaning magnetic yoke key grooves of different depths and positions. And the tail end of the handle part is provided with a lifting bolt which can be used for lifting a travelling crane, so that the labor intensity of workers when cleaning the deepest position of the keyway hole is reduced.

Description

Technical Field

[0001] The utility model relates to the field of hydro-generators, in particular to an iron chip cleaning tool for a yoke keyway. Background Art

[0002] During the installation of hydro-turbine generator sets, smooth and precise alignment of the yoke keyways is crucial. To ensure the quality of this process, specialized push-pull tools are used to meticulously remove burrs and misalignments. However, this process often generates a large amount of iron filings, posing a significant challenge to subsequent cleaning. Currently, vacuum cleaners and other equipment are commonly used to remove these filings. However, the total height of the yoke stacks in generator sets is quite high, sometimes even approaching 5 meters. When faced with special structures such as the enclosed lower section of the unit, vacuum cleaners often fail to achieve the desired cleaning effect. Utility Model Content

[0003] The utility model aims to provide an iron chip cleaning tool for a yoke keyway, so as to solve the problem of poor cleaning effect in the prior art.

[0004] The utility model is implemented by adopting the following technical solution: a chip cleaning tool for a yoke keyway, characterized in that it includes a magnetic head and a connecting handle, the magnetic head is provided with a plurality of magnets, the connecting handle is connected to one end of the magnetic head, and the size of the magnetic head is smaller than the size of the yoke keyway.

[0005] Furthermore, the connecting handle includes a screw, a connecting sleeve and a lifting eye screw. One end of the screw is connected to the magnetic head, and the other end is connected to the lifting eye screw through the connecting sleeve. The connecting sleeve cooperates with the lifting eye screw and the screw thread respectively.

[0006] Furthermore, the cross-sectional profile of the magnetic head is the same as the inner diameter profile of the yoke keyway.

[0007] Furthermore, the size of the magnetic head is 1 to 2 mm smaller than the size of the inner diameter profile of the yoke keyway.

[0008] Furthermore, a limiting boss is provided on the side of the magnetic head, and the limiting boss is embedded in the gap between the magnetic yoke laminations on both sides of the magnetic yoke keyway to limit the magnetic head from deviating from the preset position.

[0009] Furthermore, a threaded connection hole is provided on one side of the magnetic head, which is connected to the connecting handle through the threaded connection hole. Several magnet mounting grooves are provided on each side of the magnetic head without a threaded connection hole, and the magnet is fixed in the magnet mounting groove by mounting screws.

[0010] Furthermore, the depth of the magnet mounting groove is greater than the thickness of the magnet. When the magnet is installed in the magnet mounting groove, the surface of the magnet is lower than the outer surface of the magnetic head to form a groove. The groove is used to accommodate and absorb iron filings and prevent the magnet from being directly absorbed on the surface of the yoke keyway to cause jamming.

[0011] The iron chip cleaning tool for a yoke keyway described in the utility model has the following beneficial effects:

[0012] High reliability: The customized magnetic head and limit boss design ensure the stability and positioning accuracy of the cleaning tool in the yoke keyway, reducing the problem of jamming during use.

[0013] Wide applicability: The connecting handle is designed as an assembled structure, the length of which can be adjusted according to usage requirements, and is suitable for cleaning yoke keyways of different depths and positions.

[0014] Reduce labor intensity: The end of the handle is equipped with a lifting eye screw, which can be used for crane lifting, reducing the labor intensity of workers when cleaning the deepest position of the keyway hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. The drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0016] Figure 1 The figure is a schematic diagram of the structure of an iron chip cleaning tool for a yoke keyway;

[0017] Figure 2 Schematic diagram of the magnetic head structure;

[0018] Figure 3 This is a schematic diagram of the working state of the magnetic head;

[0019] Figure 4 This is a schematic diagram of the magnet installation structure;

[0020] In the figure, 1-magnetic head, 2-screw, 3-connecting sleeve, 4-eye screw, 5-magnet, 6-yoke stack, 7-limiting boss, 8-mounting screw. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0023] like Figure 1-4 As shown, a chip cleaning tool for a yoke keyway includes a magnetic head 1 and a connecting handle, wherein the magnetic head 1 is provided with a plurality of magnets 5, and the connecting handle includes a screw 2, a connecting sleeve 3 and a lifting eye screw 4. One end of the screw 2 is connected to the magnetic head 1, and the other end is connected to the lifting eye screw 4 through the connecting sleeve 3. The connecting sleeve 3 is threadedly matched with the lifting eye screw 4 and the screw 2 respectively.

[0024] The cross-sectional profile and overall dimensions of the magnetic head 1 are customized according to the special-shaped profile of the yoke keyway. The total length of the connecting handle is determined according to usage requirements, and the screw 2 and the connecting sleeve 3 are assembled and connected to achieve the change in length.

[0025] A limiting boss 7 is provided on the side of the magnetic head 1, and the limiting boss 7 is embedded in the gap between the yoke laminations 6 on both sides of the yoke keyway, which serves to limit the magnetic head 1 from deviating from the preset position and avoid the situation where one side is unilaterally attracted to the yoke keyway.

[0026] The size of the magnetic head 1 is 1 to 2 mm smaller than the size of the yoke keyway profile, ensuring that the cleaning tool can smoothly extend into the yoke keyway of the unit. A threaded connection hole is provided on one side of the magnetic head 1, which is connected to the connecting handle through the threaded connection hole. Each surface of the magnetic head 1 without a threaded connection hole is provided with a plurality of magnet mounting grooves. The magnet 5 is fixed in the magnet mounting groove by mounting screws 8. The depth of the magnet mounting groove is greater than the thickness of the magnet 5. When the magnet 5 is installed in the magnet mounting groove, the surface of the magnet 5 is lower than the outer surface of the magnetic head 1 to form a groove. The groove can be used to accommodate and absorb iron filings, and at the same time, it can also prevent the magnet 5 from being directly adsorbed on the surface of the yoke keyway, causing the iron filing cleaning tool to get stuck during use.

[0027] The above embodiments describe the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Without departing from the spirit and scope of the present invention, modifications and variations made by those skilled in the art without departing from the spirit and scope of the present invention should be within the scope of protection of the appended claims.

Claims

1. A chip cleaning tool for a yoke keyway, characterized in that: The invention comprises a magnetic head (1) and a connecting handle, wherein a plurality of magnets (5) are provided on the magnetic head (1), the connecting handle is connected to one end of the magnetic head (1), and the size of the magnetic head (1) is smaller than the size of the yoke keyway; a limiting boss (7) is provided on the side of the magnetic head (1), and the limiting boss (7) is embedded in the gap between the yoke laminations (6) on both sides of the yoke keyway to limit the magnetic head (1) from deviating from the preset position.

2. The iron chip cleaning tool for the yoke keyway according to claim 1, characterized in that: The connecting handle comprises a screw rod (2), a connecting sleeve (3) and a lifting eye screw (4); one end of the screw rod (2) is connected to the magnetic head (1), and the other end is connected to the lifting eye screw (4) via the connecting sleeve (3); the connecting sleeve (3) is threadedly engaged with the lifting eye screw (4) and the screw rod (2), respectively.

3. The iron chip cleaning tool for the yoke keyway according to claim 1, characterized in that: The cross-sectional profile of the magnetic head (1) is the same as the inner diameter profile of the magnetic yoke keyway.

4. The iron chip cleaning tool for a yoke keyway according to claim 1, characterized in that: The size of the magnetic head (1) is 1 to 2 mm smaller than the size of the inner diameter profile of the yoke keyway.

5. The iron chip cleaning tool for a yoke keyway according to claim 1, characterized in that: A threaded connection hole is provided on one side of the magnetic head (1), and is connected to the connection handle through the threaded connection hole. Each surface of the magnetic head (1) not provided with a threaded connection hole is provided with a plurality of magnet mounting grooves, and the magnet (5) is fixed in the magnet mounting groove by means of mounting screws (8).

6. The iron chip cleaning tool for a yoke keyway according to claim 5, characterized in that: The depth of the magnet mounting groove is greater than the thickness of the magnet (5). When the magnet (5) is installed in the magnet mounting groove, the surface of the magnet (5) is lower than the outer surface of the magnetic head (1) to form a groove. The groove is used to accommodate and absorb iron filings and prevent the magnet (5) from being directly absorbed on the surface of the yoke keyway to cause obstruction.

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