Hole opening equipment suitable for motor slip ring end cover

Abstract

The utility model discloses tapping equipment suitable for a motor slip ring end cover, which belongs to the technical field of tappers and comprises a fixing plate, three identical single-point tappers are arranged on the fixing plate at positions corresponding to threading holes, each single-point tapper comprises a support handle which is hinged to the fixing plate and can rotate, and the support handles are hinged to the fixing plate. The front end of the supporting handle is provided with a drill bit capable of tapping the motor slip ring end cover through rotation, a rotatable rotating shaft is arranged at the position, located in the middle of the three single-point tappers, of one side of the fixing plate, and a large gear and a small gear which are meshed with each other are fixedly arranged on the rotating shaft and the supporting handle of the single-point tappers respectively. According to the utility model, the hole arranged on the end cover of the slip ring of the motor is vertical to the end cover and is parallel to the cable.

Description

Technical Field

[0001] This utility model belongs to the field of hole opener technology, specifically relating to a hole opener device suitable for motor slip ring end caps. Background Technology

[0002] The dust generated during the blast furnace ironmaking process is high, creating a harsh working environment. Combined with the high temperature, this leads to severe damage to equipment in the workshop. During the routine disassembly and inspection of the overhead crane motor slip ring, it was found that the wire hole of the slip ring end cover was small and the cable was severely worn. This could easily cause short circuits or open circuits in the electrical equipment, rendering the overhead crane unusable and preventing personnel from performing hoisting operations. This, in turn, has a certain impact on personnel safety and production.

[0003] The motor slip ring end cover has three wire holes for the neutral wire, ground wire, and live wire to pass through. When workers use a hand drill and a single-point hole saw to drill holes one by one in the motor slip ring end cover, the direction and angle of the holes can easily deviate. However, the motor slip ring end cover has extremely strict requirements for the direction and angle of the wire holes. The direction of the wire holes must be perpendicular to the end cover and parallel to the direction of the cable. Otherwise, when the motor rotates, it will repeatedly rub against the cable in the wire holes. Over time, the cable will be worn off, causing the motor to fail to start, or even causing more serious safety accidents. Utility Model Content

[0004] To solve the above problems, this utility model provides a hole-opening device suitable for motor slip ring end caps, ensuring that the holes opened on the motor slip ring end caps are perpendicular to the end caps and parallel to the cables.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A hole-making device for a motor slip ring end cover includes a fixed plate. Three identical single-point hole openers are arranged on the fixed plate at positions corresponding to the wire hole. Each single-point hole opener includes a rotatable support handle hinged to the fixed plate. The front end of the support handle is a drill bit that can be rotated to open a hole in the motor slip ring end cover. A rotatable shaft is arranged on one side of the fixed plate at the middle position of the three single-point hole openers. A large gear and a small gear that mesh with each other are fixedly arranged on the shaft and the support handle of the single-point hole opener, respectively.

[0007] A further improvement of this utility model is that the fixing plate and the support handle are hinged together by a bearing I located inside the fixing plate.

[0008] A further improvement of this utility model is that the rotating shaft is hinged to one side of the fixed plate by a bearing, and the outer ring of the bearing is fixed to the fixed plate.

[0009] A further improvement of this utility model is that: the fixing plate is fixed to the outer shell on the side near the drill bit and the outer periphery of the support handle by a spring. The outer shell is a cylindrical structure with one end open, and a single-point hole through which a sliding hole can be passed is provided on the non-open end. When the spring is at its original length, the drill bit head is located inside the space enclosed by the outer shell and the spring.

[0010] A further improvement of the present invention is that the opening end of the outer shell is configured as a toothed structure.

[0011] The technological advancements achieved by this utility model due to the adoption of the above technical solution are as follows:

[0012] This invention features three identical single-point hole punches positioned on a fixed plate corresponding to the cable threading holes of the motor slip ring end cover. Each single-point hole punch consists of two parts: a rotatable support handle hinged to the fixed plate, and a drill bit at the front end of the support handle that can be rotated to punch holes in the motor slip ring end cover. A rotatable shaft is located on one side of the fixed plate, in the middle of the three single-point hole punches. A large gear and a small gear, meshing with each other, are fixed to the shaft and the support handle of the single-point hole punches, respectively. In use, the head of the single-point hole punch drill is brought into contact with the motor slip ring end cover, and a drill connected to the shaft is used to punch holes. This ensures that the punching direction of the three single-point hole punches is perpendicular to the motor slip ring end cover and parallel to the direction of the cable, preventing friction between the motor and the cable in the threading hole during motor rotation, thus avoiding damage or even danger.

[0013] The present invention has a fixed plate with a housing attached to the side of the drill bit and the outer periphery of the support handle by a spring. The housing is a cylindrical structure with one open end and a single-point hole through which a sliding hole can be passed. When the spring is at its original length, the drill bit head is located inside the space enclosed by the housing and the spring. When the present invention is in use, the open end of the housing is brought into contact with the motor slip ring end cover. The housing serves as a positioning device, further ensuring that when the motor slip ring end cover is drilled using the present invention, the drilling direction is perpendicular to the motor slip ring end cover and parallel to the direction of the cable.

[0014] The outer shell of this utility model has a toothed structure at the opening end, which increases the contact force between the outer shell and the motor slip ring end cover when making a hole in the end cover, resulting in a better positioning effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a side view of the present invention;

[0017] Among them, 1. small gear; 2. fixed plate; 3. large gear; 4. rotating shaft; 5. single-point hole opener; 6. drill bit; 7. housing; 8. support handle; 9. bearing I; 10. bearing II; 11. spring. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to embodiments:

[0019] like Figure 1 and Figure 2 As shown, a hole-opening device suitable for motor slip ring end caps includes: a pinion 1, a fixing plate 2, a large gear 3, a rotating shaft 4, a single-point hole opener 5, a drill bit 6, a housing 7, a support handle 8, bearing I 9, bearing II 10, and a spring 11.

[0020] Three identical single-point hole punches 5 are installed on the fixed plate 2 at positions corresponding to the wire hole of the motor slip ring end cover. Each single-point hole punch 5 consists of two parts: a support handle 8 hinged to the fixed plate 2 and capable of rotation, and a drill bit 6 at the front end of the support handle 8 that can be rotated to punch a hole in the motor slip ring end cover. A rotating shaft 4 is installed on one side of the fixed plate 2, in the middle of the three single-point hole punches 5. A large gear 3 and a small gear 1 that mesh with each other are fixed on the rotating shaft 4 and the support handle 8 of the single-point hole punches 5, respectively. In use, the head of the drill bit 6 of the single-point hole punch 5 is brought into contact with the motor slip ring end cover, and an external electric drill is connected to the rotating shaft 4 to punch a hole. This ensures that the punching direction of the three single-point hole punches 5 is perpendicular to the motor slip ring end cover and parallel to the direction of the cable, thus avoiding friction between the motor and the cable in the wire hole when the motor rotates.

[0021] In one embodiment of the present invention, the fixing plate 2 and the support handle 8 are hinged together by a bearing I9 located inside the fixing plate 2, and the outer ring of the bearing I9 is ​​fixed to the fixing plate 2.

[0022] In one embodiment of this utility model, the rotating shaft 4 is hinged to one side of the fixed plate 2 via the bearing 10, and the outer ring of the bearing 10 is fixed to the fixed plate 2 by welding or the like.

[0023] In one embodiment of this utility model, a housing 7 is fixed to the side of the fixing plate 2 near the drill bit 6 and the outer periphery of the support handle 8 by a spring 11. The housing 7 is a cylindrical structure with one end open, and the other end is provided with an opening through which a single-point hole opener 5 can pass and slide. When the spring 11 is at its original length, the head of the drill bit 6 is located inside the space enclosed by the housing 7 and the spring 11. In use, the open end of the housing 7 is brought into contact with the motor slip ring end cover, and the housing 7 plays a positioning role, further ensuring that when the motor slip ring end cover is opened by this utility model, the opening direction is perpendicular to the motor slip ring end cover and parallel to the direction of the cable.

[0024] In one embodiment of this utility model, the opening end of the outer shell 7 is configured with a toothed structure. When the hole is made in the motor slip ring end cover, the contact force between the outer shell 7 and the motor slip ring end cover is greater, and the positioning effect is better.

[0025] Instructions for use: When using this utility model, the head of the single-point hole opener 5 and the drill bit 6 are brought into contact with the motor slip ring end cover. The hole is opened by pressing down with an external electric drill connected to the rotating shaft 4. This ensures that the opening direction of the three single-point hole openers 5 is perpendicular to the motor slip ring end cover and parallel to the direction of the cable. This avoids friction between the motor and the cable in the cable hole when the motor rotates, which could cause damage or even danger.

[0026] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A hole-opening device suitable for motor slip ring end caps, characterized in that: The device includes a fixed plate (2), on which three identical single-point hole openers (5) are provided at positions corresponding to the wire holes. Each single-point hole opener (5) includes a support handle (8) hinged to the fixed plate (2) and capable of rotation. The front end of the support handle (8) is a drill bit (6) that can be rotated to open the end cover of the motor slip ring. A rotatable shaft (4) is provided on one side of the fixed plate (2) at the middle position of the three single-point hole openers (5). A large gear (3) and a small gear (1) that mesh with each other are respectively fixed on the shaft (4) and the support handle (8) of the single-point hole opener (5).

2. The hole-opening device for a motor slip ring end cover according to claim 1, characterized in that: The fixed plate (2) and the support handle (8) are hinged together by a bearing I (9) located inside the fixed plate (2).

3. The hole-opening device for a motor slip ring end cover according to claim 1, characterized in that: The rotating shaft (4) is hinged to one side of the fixed plate (2) via a bearing (10), and the outer ring of the bearing (10) is fixed to the fixed plate (2).

4. The hole-opening device for a motor slip ring end cover according to claim 1, characterized in that: The fixing plate (2) is fixed to the outer periphery of the support handle (8) near the drill bit (6) by a spring (11) with a housing (7). The housing (7) is a cylindrical structure with one end open, and a single-point hole opener (5) is provided on the non-open end, which can pass through and slide. When the spring (11) is at its original length, the head of the drill bit (6) is located inside the space enclosed by the housing (7) and the spring (11).

5. The hole-opening device for a motor slip ring end cover according to claim 4, characterized in that: The opening end of the outer shell (7) is configured with a toothed structure.

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