Chamfering device for machining transformer insulation supporting strip and using method

Abstract

The invention discloses a chamfering device for transformer insulation supporting strip machining and a using method.The chamfering device comprises a machining table, the top of the machining table is connected with a vertical plate, the vertical plate is connected with a driving mechanism used for driving a supporting strip to move, and the driving mechanism comprises a motor, a driving wheel, a transmission belt and two pressing wheels; the machining table is connected with a front conveying frame and a rear conveying frame which are used for limiting the supporting strips, the front conveying frame is connected with a chamfering frame used for chamfering the supporting strips, the deburring mechanism comprises a rotating cylinder, a wire brush and two supporting rings, and the supporting rings are connected with the front conveying frame and the rear conveying frame and used for guiding the rotating cylinder. The wire brush is connected into the rotating cylinder, and the transmission belt is used for driving the rotating cylinder to rotate. According to the device, stable forward moving of the supporting strip and synchronous cutting treatment of four edges of the supporting strip can be achieved, the chamfering efficiency is improved, meanwhile, deburring operation can be conveniently conducted on the chamfered position, the machining quality of the supporting strip is improved, and practicability is high.

Description

Technical Field

[0001] The invention relates to the technical field of transformer insulation stay processing, and in particular to a chamfering device for transformer insulation stay processing and a use method thereof. Background Art

[0002] A power transformer is a static electrical device that is used to convert a certain value of AC voltage (current) into another or several different values ​​of voltage (current) with the same frequency. It is a static device with two or more windings. The axial support bars used for the windings are used as mechanical support between the windings and to fix the oil gap pads. They are the main insulation of the transformer. The quality of the support bars directly affects the insulation performance and operation stability of the transformer. In order to ensure that the transformer oil can flow well, increase the heat dissipation performance of the transformer, and effectively reduce the loss, the vertical edges on the long strip support bars need to be chamfered.

[0003] During the chamfering process of the existing stays, the stays are usually locked and fixed with a clamp, and then the edges are manually ground with a handheld chamfering knife. The operation is time-consuming and labor-intensive, with low efficiency. In addition, the chamfering angle is difficult to control, and it is easy for the chamfer sizes of the four edges to be different, resulting in poor processing quality, which in turn affects the use effect. Summary of the invention

[0004] The object of the present invention is to provide a chamfering device and a method for using the transformer insulating support bar, which has the advantages of synchronously cutting the four edges to improve the chamfering efficiency, and at the same time facilitates the deburring operation at the chamfered corners, thereby improving the processing quality of the support bar, and solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a chamfering device for processing transformer insulating struts, comprising a processing table, a vertical plate connected to the top of the processing table, the vertical plate connected to a driving mechanism for driving the struts to move, the driving mechanism comprising a motor, a driving wheel, a transmission belt, and two pressing wheels, the motor is used to drive the driving wheel to rotate, the driving wheel and the two pressing wheels are connected by a transmission belt, the pressing wheels press on the struts, the processing table is connected to a front conveying frame and a rear conveying frame for limiting the struts, the front conveying frame is connected to a chamfering frame for chamfering the struts, and a deburring mechanism for deburring the struts is connected between the front conveying frame and the rear conveying frame, the deburring mechanism comprises a rotating drum, a wire brush, and two supporting rings, the supporting rings are respectively connected to the front conveying frame and the rear conveying frame, and the support ring is used to guide the rotating drum, the wire brush is connected in the rotating drum, and the transmission belt is used to drive the rotating drum to rotate.

[0006] Preferably, the driving mechanism also includes two slide grooves, two sliding blocks, two rotating wheels, two rotating shafts, and two springs. The slide grooves are arranged on the vertical plate, and the slide grooves are used to guide the sliding blocks. The pressing wheel, the rotating wheel and the rotating shaft are fixedly connected to the rotating shaft. The end of the rotating shaft is rotatably connected to the sliding block. The spring is used to drive the sliding block to move downward, and the rotating wheel is connected to the driving wheel through a transmission belt.

[0007] Preferably, the sliding block is slidably connected to the sliding groove, the spring is located in the sliding groove, and both ends of the spring are connected to the sliding block and the vertical plate.

[0008] Preferably, a feed channel is provided in the chamfer frame, and the feed channel is connected to the front conveying frame.

[0009] Preferably, chamfering cutters are connected to the four corners of the feed channel.

[0010] Preferably, the deburring mechanism also includes two L-shaped plates, a connecting shaft, a belt, a rotating wheel, conical tooth one, a connecting wheel, conical tooth two, and a driven wheel, the two ends of the L-shaped plate are connected to the front conveying frame and the support ring, the connecting shaft is fixed to the support ring, the rotating wheel is rotatably connected to the end of the connecting shaft, and the rotating wheel and the driven wheel are connected by a belt drive, the driven wheel is fixed to the outside of the rotating cylinder, the conical tooth one is fixedly connected to the rotating wheel, and the conical tooth one matches the conical tooth two, the conical tooth two is connected to the connecting wheel, the connecting wheel is connected to the transmission belt, and the connecting wheel shaft is connected to the vertical plate.

[0011] Preferably, the conical tooth one is meshingly connected with the conical tooth two.

[0012] Preferably, a rectangular hole is provided on the top of the chamfered frame, and the rectangular hole matches the pressing wheel.

[0013] Preferably, the top of the processing table is connected to a base, and the front conveying frame and the rear conveying frame are fixed to the top of the base.

[0014] A method for using a chamfering device for processing transformer insulation stays, comprising the following steps: Step 1: The stay enters from the front conveying frame, the motor drives the driving wheel to rotate, and simultaneously drives the two pressing wheels to rotate, and the pressing wheels press on the stay to achieve stable forward movement of the stay, and the stay enters the chamfering frame, and the four chamfering knives synchronously cut the four edges of the stay, which improves the chamfering efficiency, and the stay is stable and high during the chamfering process, which improves the chamfering quality; Step 2: The chamfered stay enters the rotating drum, and the operation of the transmission belt can drive the connecting wheel to rotate, and then cooperate with the use of the conical tooth 2 and the conical tooth 1 to realize the rotation of the rotating wheel. The rotating wheel can drive the rotating drum to rotate, so that the wire brush rotates, which is convenient for deburring the chamfered part of the stay and improving the processing quality of the stay; Step 3: After deburring, the stays enter the rear conveying frame, which limits the stays and cooperates with the use of the pressing wheel to ensure smooth discharge of the stays.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention is provided with a driving mechanism and a deburring mechanism. The motor can drive the driving wheel to rotate, and synchronously drive the two pressing wheels to rotate. The pressing wheels press on the struts to achieve stable forward movement of the struts. The struts enter the chamfering frame, and the four chamfering knives synchronously cut the four edges of the struts to improve the chamfering efficiency. Furthermore, the struts are transported to the rotating cylinder, and the transmission of the transmission belt can drive the connecting wheel to rotate, and then drive the conical tooth two to rotate. The conical tooth two cooperates with the conical tooth one to realize the rotation of the rotating wheel. The rotating wheel can drive the rotating cylinder to rotate, and deburring is performed on the chamfered corners of the struts, thereby improving the processing quality of the struts and having strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A perspective view of the present invention; Figure 2 for Figure 1 A partial map of Figure 3 It is a right side perspective view of the present invention; Figure 4 for Figure 3 A partial map of Figure 5 It is a schematic diagram of the internal structure of the chamfer frame of the present invention.

[0017] In the figure: 1. processing table; 2. vertical plate; 3. driving wheel; 4. transmission belt; 5. pressing wheel; 6. base; 7. rear conveying frame; 8. L-shaped plate; 9. rotating cylinder; 10. chamfering frame; 11. front conveying frame; 12. supporting ring; 13. connecting shaft; 14. belt; 15. rotating wheel; 16. conical tooth one; 17. connecting wheel; 18. conical tooth two; 19. wire brush; 20. driven wheel; 21. motor; 22. slide groove; 23. sliding block; 24. rotating wheel; 25. rotating shaft; 26. spring; 27. rectangular hole; 28. feeding channel; 29. ​​chamfering knife. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figures 1 to 5The present invention provides a chamfering device for processing transformer insulating stays, including a processing table 1, a vertical plate 2 is connected to the top of the processing table 1, and the vertical plate 2 is connected to a driving mechanism for driving the stays to move, and the driving mechanism includes a motor 21, a driving wheel 3, a transmission belt 4, and two pressing wheels 5. The motor 21 is used to drive the driving wheel 3 to rotate, and the motor 21 is fixed to the back of the vertical plate 2. The driving wheel 3 is connected to the two pressing wheels 5 through the transmission belt 4, and the pressing wheels 5 press on the stays. The processing table 1 is connected to a front conveying frame 11 and a rear conveying frame 7 for limiting the stays, so that the stays are not easily skewed or offset during the conveying process, which is convenient for chamfering and deburring operations. The front conveying frame 11 is connected to a chamfering frame 10 for chamfering the struts, and a deburring mechanism for deburring the struts is connected between the front conveying frame 11 and the rear conveying frame 7. The deburring mechanism includes a rotating drum 9, a wire brush 19, and two support rings 12. The support rings 12 are respectively connected to the front conveying frame 11 and the rear conveying frame 7. The rotating drum 9 is rotatably connected to the support rings 12, which can improve the stability of the rotation of the rotating drum 9 and avoid skewness and deviation, so that the wire brush 19 can evenly grind and deburr the struts. The wire brush 19 is connected to the rotating drum 9, and the transmission belt 4 is used to drive the rotating drum 9 to rotate.

[0020] Placing the stay in the front conveying frame 11 can limit the stay, and then the motor 21 drives the driving wheel 3 to rotate. The driving wheel 3 is connected to the two rotating wheels 24 through the transmission belt 4, and can synchronously drive the two pressing wheels 5 to rotate, and the pressing wheels 5 can drive the stay forward. The stay enters the chamfering frame 10, and the four chamfering knives 29 can synchronously cut the four edges of the stay, thereby improving the chamfering efficiency of the stay. The chamfered stay moves into the rotating cylinder 9, and the operation of the transmission belt 4 can drive the connecting wheel 17 to rotate, and the connecting wheel 17 drives the conical tooth 2 18 to rotate. The conical tooth 2 18 matches the conical tooth 1 16, and can drive the rotating wheel 15 to rotate. The rotating wheel 15 is connected to the driven wheel 20 through the belt 14 transmission, which can realize the rotation of the rotating cylinder 9, and facilitate the wire brush 19 to perform deburring operations on the chamfered position of the stay, and obtain excellent stays. The stays are discharged from the rear conveying frame 7.

[0021] The operation of the pressing wheel 5 and the rotating cylinder 9 is driven by the motor 21, and no other driving mechanism is required to drive them separately, thereby reducing the installation space.

[0022] The driving mechanism also includes two slide grooves 22, two sliding blocks 23, two rotating wheels 24, two rotating shafts 25, and two springs 26. The slide grooves 22 are arranged on the vertical plate 2, and the slide grooves 22 are used to guide the sliding block 23. The pressing wheel 5 and the rotating wheel 24 are fixedly connected to the rotating shaft 25. The end of the rotating shaft 25 is rotatably connected to the sliding block 23. The spring 26 is used to drive the sliding block 23 to move downward. The rotating wheel 24 is connected to the driving wheel 3 through the transmission belt 4. The spring 26 can apply downward pressure to the sliding block 23, so that the pressing wheel 5 presses on the stay, and the outer side of the pressing wheel 5 is made of rubber material, which can increase the contact friction with the stay and facilitate the driving of the stay forward. At the same time, when the stay is chamfered, the pressing wheel 5 is pressed on the stay, which can improve the chamfering quality of the stay. At the same time, the transmission belt 4 is in a tensioned state to avoid slipping between the transmission belt 4 and the rotating wheel 24, and the transmission efficiency is high.

[0023] The sliding block 23 is slidably connected to the sliding groove 22 . The spring 26 is located in the sliding groove 22 , and two ends of the spring 26 are connected to the sliding block 23 and the vertical plate 2 .

[0024] A feed channel 28 is provided in the chamfering frame 10, and the feed channel 28 is connected to the front conveying frame 11. The four corners of the feed channel 28 are connected with chamfering knives 29, which can simultaneously cut and chamfer the four edges of the struts with high efficiency.

[0025] The deburring mechanism also includes two L-shaped plates 8, a connecting shaft 13, a belt 14, a rotating wheel 15, a conical tooth 16, a connecting wheel 17, a conical tooth 2 18, and a driven wheel 20. The two ends of the L-shaped plate 8 are connected to the front conveying frame 11 and the support ring 12. The connecting shaft 13 is fixed to the support ring 12. The rotating wheel 15 is rotatably connected to the end of the connecting shaft 13, and the rotating wheel 15 is connected to the driven wheel 20 through the belt 14. The driven wheel 20 is fixed to the outside of the rotating cylinder 9. The conical tooth 16 is fixedly connected to the rotating wheel 15, and the conical tooth 16 matches the conical tooth 2 18. The conical tooth 2 18 is connected to the connecting wheel 17, and the connecting wheel 17 is connected to the transmission belt 4. The connecting wheel 17 axis is connected to the vertical plate 2. During the operation of the transmission belt 4, the connecting wheel 17 can be driven to rotate, and the connecting wheel 17 drives the conical tooth 2 18 to rotate, and then drives the conical tooth 1 16 to rotate, so as to realize the rotation of the rotating wheel 15. The rotating wheel 15 is connected to the driven wheel 20 through the belt 14, so as to realize the rotation of the rotating cylinder 9. The diameter ratio of the rotating wheel 15 and the driven wheel 20 is 1:2, so that the rotation speed of the rotating cylinder 9 is appropriately reduced, and the relative sliding speed of the wire brush 19 to the chamfer of the support bar is suitable, thereby improving the deburring effect and being more comprehensive.

[0026] The conical tooth 16 is meshed with the conical tooth 2 18, and the transmission ratio is constant and the efficiency is high.

[0027] A rectangular hole 27 is provided on the top of the chamfered frame 10 , and the rectangular hole 27 matches the pressing wheel 5 .

[0028] The top of the processing table 1 is connected to a base 6 , and the front conveying frame 11 and the rear conveying frame 7 are fixed on the top of the base 6 . The base 6 provides good support for the front conveying frame 11 and the rear conveying frame 7 .

[0029] A method for using a chamfering device for processing transformer insulation stays, characterized in that it comprises the following steps: Step 1: The stay enters from the front conveying frame 11, the motor 21 drives the driving wheel 3 to rotate, and synchronously drives the two pressing wheels 5 to rotate, and the pressing wheels 5 press on the stay to achieve stable forward movement of the stay, and the stay enters the chamfering frame 10, and the four chamfering knives 29 synchronously cut the four edges of the stay, thereby improving the chamfering efficiency, and the stay is stable and high during the chamfering process, thereby improving the chamfering quality; Step 2: The chamfered stay enters the rotating drum 9, and the operation of the transmission belt 4 can drive the connecting wheel 17 to rotate, and then cooperate with the use of the conical gear 2 18 and the conical gear 1 16 to realize the rotation of the rotating wheel 15, and the rotating wheel 15 can drive the rotating drum 9 to rotate, so that the wire brush 19 rotates, which is convenient for deburring the chamfered part of the stay and improving the processing quality of the stay; Step 3: The deburred stays enter the rear conveying frame 7, which limits the stays and cooperates with the use of the pressing wheel 5 to ensure smooth discharge of the stays.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A chamfering device for processing transformer insulation stays, comprising a processing table (1), characterized in that: The top of the processing table (1) is connected to a vertical plate (2), and the vertical plate (2) is connected to a driving mechanism for driving the support bar to move, and the driving mechanism comprises a motor (21), a driving wheel (3), a transmission belt (4), and two pressing wheels (5). The motor (21) is used to drive the driving wheel (3) to rotate, and the driving wheel (3) is connected to the two pressing wheels (5) through a transmission belt (4). The pressing wheels (5) press on the support bar. The processing table (1) is connected to a front conveying frame (11) and a rear conveying frame (7) for limiting the position of the support bar. The front conveying frame (11) is connected to a chamfering frame (10) for chamfering the support strips, and a deburring mechanism for deburring the support strips is connected between the front conveying frame (11) and the rear conveying frame (7). The deburring mechanism comprises a rotating drum (9), a wire brush (19), and two support rings (12). The support rings (12) are respectively connected to the front conveying frame (11) and the rear conveying frame (7), and the support rings (12) are used to guide the rotating drum (9). The wire brush (19) is connected to the inside of the rotating drum (9), and the transmission belt (4) is used to drive the rotating drum (9) to rotate.

2. A chamfering device for processing transformer insulation stays according to claim 1, characterized in that: The driving mechanism further comprises two slide grooves (22), two sliding blocks (23), two rotating wheels (24), two rotating shafts (25), and two springs (26); the slide grooves (22) are arranged on the vertical plate (2), and the slide grooves (22) are used to guide the sliding blocks (23); the pressing wheel (5), the rotating wheel (24) and the rotating shaft (25) are fixedly connected; the end of the rotating shaft (25) is rotatably connected to the sliding block (23); the spring (26) is used to drive the sliding block (23) to move downward; and the rotating wheel (24) is connected to the driving wheel (3) via a transmission belt (4).

3. A chamfering device for processing transformer insulation stays according to claim 2, characterized in that: The sliding block (23) is slidably connected to the sliding groove (22), the spring (26) is located in the sliding groove (22), and two ends of the spring (26) are connected to the sliding block (23) and the vertical plate (2).

4. A chamfering device for processing transformer insulation stays according to claim 1, characterized in that: A feeding channel (28) is provided in the chamfering frame (10), and the feeding channel (28) is connected to the front conveying frame (11).

5. A chamfering device for processing transformer insulation stays according to claim 4, characterized in that: Chamfering knives (29) are connected to the four corners of the feed channel (28).

6. A chamfering device for processing transformer insulation stays according to claim 1, characterized in that: The deburring mechanism further comprises two L-shaped plates (8), a connecting shaft (13), a belt (14), a rotating wheel (15), a conical tooth 1 (16), a connecting wheel (17), a conical tooth 2 (18), and a driven wheel (20). The two ends of the L-shaped plate (8) are connected to the front conveying frame (11) and the support ring (12). The connecting shaft (13) is fixed to the support ring (12). The rotating wheel (15) is rotatably connected to the end of the connecting shaft (13). The rotating wheel (15) and the driven wheel (20) are connected by a belt (14). The driven wheel (20) is fixed to the outer side of the rotating cylinder (9). The conical tooth 1 (16) is fixedly connected to the rotating wheel (15). The conical tooth 1 (16) matches the conical tooth 2 (18). The conical tooth 2 (18) is connected to the connecting wheel (17). The connecting wheel (17) is connected to the transmission belt (4). The connecting wheel (17) is axially connected to the vertical plate (2).

7. A chamfering device for processing transformer insulation stays according to claim 6, characterized in that: The conical tooth one (16) is meshedly connected with the conical tooth two (18).

8. The chamfering device for processing transformer insulation stays according to claim 1, characterized in that: A rectangular hole (27) is provided on the top of the chamfered frame (10), and the rectangular hole (27) matches the pressing wheel (5).

9. The chamfering device for processing transformer insulation stays according to claim 1, characterized in that: The top of the processing table (1) is connected to a base (6), and the front conveying frame (11) and the rear conveying frame (7) are fixed to the top of the base (6).

10. A method for using a chamfering device for processing transformer insulation stays according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: The stay enters from the front conveying frame (11), the motor (21) drives the driving wheel (3) to rotate, and simultaneously drives the two pressing wheels (5) to rotate, and the pressing wheels (5) press on the stay to achieve stable forward movement of the stay, and the stay enters the chamfering frame (10), and the four chamfering knives (29) synchronously cut the four edges of the stay, thereby improving the chamfering efficiency, and the stay is stable during the chamfering process, thereby improving the chamfering quality; Step 2: The chamfered stay enters the rotating drum (9), and the operation of the transmission belt (4) can drive the connecting wheel (17) to rotate, and then cooperate with the use of the conical tooth second (18) and the conical tooth first (16) to realize the rotation of the rotating wheel (15). The rotating wheel (15) can drive the rotating drum (9) to rotate, so that the wire brush (19) rotates, which facilitates the deburring operation of the chamfered corner of the stay and improves the processing quality of the stay; Step 3: The deburred stays enter the rear conveying frame (7), the rear conveying frame (7) limits the stays, and cooperates with the use of the pressing wheel (5) to ensure smooth discharge of the stays.

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