Hand-held box-type substation appearance polishing device

Abstract

The utility model relates to the technical field of box-type transformer substation production, in particular to a handheld box-type transformer substation appearance polishing device. Comprising a driving part which is provided with a rotatable driving wheel; the fixing frame is fixedly connected with the driving part, and a rotatable first driven wheel is arranged at the outer end of the fixing frame; the movable frame is arranged on the fixed frame in a swinging manner, and a rotatable second driven wheel is arranged at the outer end of the movable frame; the clamping assembly is arranged between the fixed frame and the movable frame; and the polishing belt is arranged on the peripheries of the driving wheel, the first driven wheel and the second driven wheel in a sleeving manner. The clamping assembly comprises a first connecting part connected with the fixing frame; the second connecting part is connected with the movable frame; the connecting buckle is buckled with the first connecting part, and a connecting column is arranged at one end of the connecting buckle; the operating part is arranged on the second connecting part in a swinging manner; and the connecting shaft is rotatably arranged on the operating part, and the connecting shaft is connected with the connecting column. The polishing device can polish the appearance of the box-type substation.

Description

Technical Field

[0001] The utility model relates to the technical field of box-type substation production, in particular to a handheld box-type substation appearance grinding device. Background Art

[0002] Box-type substation is a compact substation device that integrates high-voltage distribution equipment, transformers, low-voltage distribution equipment, etc. in one or several closed boxes. It is usually used in power systems to achieve the reception, transformation and distribution of electric energy, and is suitable for power supply needs outdoors or in specific places.

[0003] Box-type substation cabinets are mainly made of metal panels welded or spliced. In the existing production process, there are significant technical bottlenecks in the surface treatment process after the box is formed. Conventional grinding operations can still achieve mechanized processing for the processing of flat areas. However, for complex three-dimensional structures such as weld transition areas, box edges and connection corners, they are still limited by the structure of traditional grinding equipment and still need to rely on manual handheld tools for fine processing. This operating mode not only leads to low production efficiency and difficulty in ensuring consistency in processing quality, but also poses safety hazards and high labor costs. Utility Model Content

[0004] In order to solve the technical problems existing in the background technology, the utility model provides a handheld box-type substation appearance grinding device, which can grind the appearance of the box-type substation, and is particularly suitable for grinding corners.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A handheld box-type substation appearance polishing device, comprising:

[0007] A driving part, wherein the driving part is provided with a rotatable driving wheel;

[0008] A fixed frame is fixedly connected to the driving part, and a rotatable first driven wheel is arranged at the outer end of the fixed frame;

[0009] A movable frame is swingably arranged on the fixed frame, and a rotatable second driven wheel is arranged at the outer end of the movable frame;

[0010] A clamping assembly is arranged between the fixed frame and the movable frame;

[0011] The grinding belt is sleeved on the outer circumferences of the driving wheel, the first driven wheel and the second driven wheel.

[0012] Further, the clamping assembly includes:

[0013] A first connecting portion connected to the fixing frame;

[0014] A second connecting portion connected to the movable frame;

[0015] A connecting buckle is buckled with the first connecting part, and a connecting column is provided at one end of the connecting buckle;

[0016] An operating portion, swingably disposed on the second connecting portion;

[0017] The connecting shaft is rotatably arranged on the operating part, and the connecting shaft is connected to the connecting column.

[0018] Furthermore, the connecting column can be slidably inserted in the connecting shaft, the threaded connection of the connecting column is connected with a nut, a spring is arranged between the nut and the connecting shaft, and the spring is sleeved on the outer circumference of the connecting column.

[0019] Furthermore, the first driven wheel and the second driven wheel are drum wheels.

[0020] Furthermore, the driving part is an angle grinder, the fixing frame is detachably connected to a housing of the angle grinder, and the driving wheel is arranged on a rotating shaft of the angle grinder.

[0021] Furthermore, a handle is provided on the fixing frame.

[0022] Furthermore, the clamping assembly is an elastomer.

[0023] Beneficial effects of the utility model:

[0024] (1) By setting up a double-wheel tensioning system consisting of a first driven wheel and a second driven wheel, the flexible grinding belt can be accurately supported into a triangular curved surface. This structural design allows the grinding belt to fully fit the complex three-dimensional structures such as the weld transition zone, edges and connection angles of the box-type substation, and achieve efficient grinding of these complex three-dimensional structures while maintaining a constant contact pressure.

[0025] (2) The clamping assembly adopts a quick locking mechanism to achieve a rigid connection between the movable frame and the fixed frame in the working state, so that the first driven wheel and the second driven wheel form a stable double-wheel tensioning system to implement constant tension control on the grinding belt. When performing the belt change operation, the locking state can be released with one click by unlocking the clamping assembly, so that the movable frame and the fixed frame can rotate relative to each other, and the grinding belt can be quickly disassembled and assembled without the need for auxiliary tools.

[0026] (3) The elastic clamping assembly gives the movable frame and the fixed frame dynamic compensation capability through the preload spring mechanism, and cooperates with the synergy of the double-wheel tensioning system to keep the elastic deformation of the tightened grinding belt. This elastic deformation mechanism enables the grinding belt to achieve three-dimensional surface adaptive fitting when contacting the box-type substation cabinet, especially in special-shaped structures such as weld transition zones, edges and connection corners, effectively improving the grinding uniformity of complex structural surfaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0028] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0029] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0030] Figure 3 yes Figure 2 A partial enlarged view of position A in the middle.

[0031] In the figure:

[0032] 1. Driving unit, 2. Driving wheel, 3. Handle, 4. Fixed frame, 5. First driven wheel, 6. Grinding belt, 7. Second driven wheel, 8. Movable frame, 9. Clamping assembly;

[0033] 901. First connecting part, 902. Connecting buckle, 903. Connecting column, 904. Second connecting part, 905. Connecting shaft, 906. Operating part, 907. Nut, 908. Spring. DETAILED DESCRIPTION

[0034] The utility model is further described in detail below with reference to the accompanying drawings.

[0035] like Figure 1 , 2 As shown, a handheld box-type substation appearance grinding device includes a driving part 1, and the driving part 1 is provided with a rotatable driving wheel 2. The fixed frame 4 is fixedly connected to the driving part 1, and a rotatable first driven wheel 5 is provided at the outer end of the fixed frame 4. The movable frame 8 is swingably arranged on the fixed frame 4, and a rotatable second driven wheel 7 is provided at the outer end of the movable frame 8. The fixed frame 4 and the movable frame 8 are arranged in a V shape. The clamping assembly 9 is arranged between the fixed frame 4 and the movable frame 8, and the clamping assembly 9 can be used to lock the movable frame 8. The clamping assembly 9 can adopt an elastic body such as a tension spring, so that the fixed frame 4 and the movable frame 8 have a certain dynamic compensation ability for the grinding belt 6. The grinding belt 6 is sleeved on the outer periphery of the driving wheel 2, the first driven wheel 5 and the second driven wheel 7. The grinding belt 6 is supported by the driving wheel 2, the first driven wheel 5 and the second driven wheel 7 to be in the shape of a triangular cylinder. The grinding belt 6 located between the first driven wheel 5 and the second driven wheel 7 is used to grind the box-type substation.

[0036] In a specific implementation, the driving part 1 is an angle grinder, and the fixed frame 4 is detachably connected to the housing of the angle grinder. The driving wheel 2 is arranged on the rotating shaft of the angle grinder, and the angle grinder can drive the driving wheel 2 to rotate, thereby rotating the grinding belt 6. The first driven wheel 5 and the second driven wheel 7 are drum wheels. The design feature of this wheel is that the middle diameter is slightly larger than the two ends, forming a slight arc-shaped bulge, similar to the shape of a waist drum. It can achieve automatic centering and reduce wear, specifically: in the transmission of the grinding belt 6, the drum-shaped design can make the grinding belt 6 automatically adjust to the center position of the first driven wheel 5 and the second driven wheel 7 during operation to prevent deviation or falling off. And by evenly distributing the stress of the grinding belt 6, the service life of the transmission system is extended.

[0037] In this technical solution, the flexible grinding belt 6 can be accurately supported into a triangular curved surface by setting a double-wheel tensioning system composed of the first driven wheel 5 and the second driven wheel 7. This structural design allows the grinding belt 6 to fully fit the complex three-dimensional structures such as the weld transition zone, edges and connection angles of the box-type substation, and achieve efficient grinding of these complex three-dimensional structures while maintaining a constant contact pressure.

[0038] like Figure 3 As shown, the specific structure of the snap-on assembly 9 includes a first connecting portion 901, and the first connecting portion 901 is connected to the fixed frame 4, specifically, the first connecting portion 901 is rotatably arranged on the fixed frame 4. The second connecting portion 904 is connected to the movable frame 8, specifically, the second connecting portion 904 is rotatably arranged on the movable frame 8. The connecting buckle 902 is buckled with the first connecting portion 901, and a connecting column 903 is arranged at one end of the connecting buckle 902. The operating portion 906 is swingably arranged on the second connecting portion 904. The connecting shaft 905 is rotatably arranged on the operating portion 906, and the connecting shaft 905 is connected to the connecting column 903. By rotating the operating portion 906, the buckling and separation between the connecting buckle 902 and the first connecting portion 901 can be realized.

[0039] In this technical solution, the clamping assembly 9 adopts a quick locking mechanism to realize the rigid connection between the movable frame 8 and the fixed frame 4 in the working state, so that the first driven wheel 5 and the second driven wheel 7 form a stable double-wheel tensioning system, and implement constant tension control on the grinding belt 6. When performing the belt changing operation, the locking state can be released by unlocking the clamping assembly 9, so that the movable frame 8 and the fixed frame 4 can rotate relative to each other, and the quick disassembly and assembly process of the grinding belt 6 can be completed without the need for auxiliary tools.

[0040] The connecting column 903 is slidably inserted into the connecting shaft 905, and the end of the connecting column 903 is threadedly connected with a nut 907. A spring 908 is provided between the nut 907 and the connecting shaft 905, and the spring 908 is sleeved on the outer circumference of the connecting column 903. By turning the nut 907, the pre-compression length of the spring 908 can be adjusted, thereby adjusting the elastic force of the spring 908, thereby adjusting the external support force between the fixed frame 4 and the movable frame 8, and thereby adjusting the tension of the first driven wheel 5 and the second driven wheel 7 on the grinding belt 6. Different tensions of the grinding belt 6 can adapt to different grinding scenes.

[0041] In this technical solution, the elastic clamping assembly 9 gives the movable frame 8 and the fixed frame 4 dynamic compensation capability through the preload spring mechanism, and cooperates with the synergy of the double-wheel tensioning system to keep the elastic deformation of the tightened grinding belt 6. This elastic deformation mechanism enables the grinding belt 6 to achieve three-dimensional surface adaptive fitting when contacting the box-type transformer cabinet, especially in special-shaped structures such as weld transition areas, edges and connection corners, effectively improving the grinding uniformity of complex structural surfaces.

[0042] In order to facilitate holding and operation, a handle 3 is provided on the fixing frame 4 .

[0043] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A handheld box-type substation appearance polishing device, characterized in that: include: A driving part (1), wherein the driving part (1) is provided with a rotatable driving wheel (2); A fixed frame (4) is fixedly connected to the driving part (1), and a rotatable first driven wheel (5) is provided at an outer end of the fixed frame (4); A movable frame (8) is swingably arranged on the fixed frame (4), and a rotatable second driven wheel (7) is arranged at the outer end of the movable frame (8); A clamping assembly (9) is arranged between the fixed frame (4) and the movable frame (8); The grinding belt (6) is sleeved on the outer circumference of the driving wheel (2), the first driven wheel (5) and the second driven wheel (7).

2. A handheld box-type substation appearance polishing device according to claim 1, characterized in that: The clamping assembly (9) comprises: A first connecting portion (901) connected to the fixing frame (4); A second connecting portion (904) connected to the movable frame (8); A connecting buckle (902) is buckled with the first connecting portion (901), and a connecting column (903) is provided at one end of the connecting buckle (902); An operating portion (906) is swingably disposed on the second connecting portion (904); A connecting shaft (905) is rotatably disposed on the operating portion (906), and the connecting shaft (905) is connected to the connecting column (903).

3. A handheld box-type substation appearance polishing device according to claim 2, characterized in that: The connecting column (903) is slidably inserted into the connecting shaft (905); the threaded connection of the connecting column (903) is connected to a nut (907); a spring (908) is provided between the nut (907) and the connecting shaft (905); and the spring (908) is sleeved on the outer circumference of the connecting column (903).

4. A handheld box-type substation appearance polishing device according to claim 1, characterized in that: The first driven wheel (5) and the second driven wheel (7) are drum wheels.

5. A handheld box-type substation appearance polishing device according to claim 1, characterized in that: The driving part (1) is an angle grinder, the fixing frame (4) is detachably connected to a housing of the angle grinder, and the driving wheel (2) is arranged on a rotating shaft of the angle grinder.

6. A handheld box-type substation appearance polishing device according to claim 1, characterized in that: The fixing frame (4) is provided with a handle (3).

7. A handheld box-type substation appearance polishing device according to claim 1, characterized in that: The clamping assembly (9) is an elastic body.

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