Polishing equipment for laminated insulating plate of extra-high voltage transformer

Abstract

The utility model provides an ultra-high voltage transformer laminated insulating plate polishing device which comprises a feeding platform used for feeding and conveying a laminated insulating plate. The first polishing machine is arranged at the downstream of the feeding platform and is used for polishing the surface of one side of the laminated insulating plate conveyed by the feeding platform; the plate turnover machine is arranged at the downstream of the first polishing machine and is used for receiving the laminated insulating plate polished by the first polishing machine and turning over the laminated insulating plate up and down; the second polishing machine is arranged at the downstream of the plate turnover machine and is used for polishing the surface of the other side of the overturned laminated insulating plate; and the material receiving platform is arranged at the downstream of the second polishing machine and is used for receiving the laminated insulating plate polished by the second polishing machine and conveying the laminated insulating plate to a next station or a packaging station. According to the polishing equipment, the laminated insulating plate is prevented from being damaged, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to transformer production equipment technical field especially relates to a kind of super extra-high voltage transformer laminated insulation plate polishing equipment. BACKGROUND

[0002] Laminated insulation plate, also known as insulation laminated board, is made of two or more layers of resin-impregnated fiber or fabric, which are combined into a whole by lamination and hot pressing. It can be a board, tube, rod or other shape, and is widely used as insulation and structural components for motors, transformers, high and low voltage electrical appliances, electrical instruments and electronic equipment.

[0003] The super extra-high voltage insulation laminated board is laminated into a whole by a large press after brushing glue, and has various thicknesses and sizes. The surface of the laminated board after lamination has residual glue, and there may also be surface quality appearance. Therefore, the upper and lower surfaces of the product need to be polished and inspected to improve the smoothness of the insulation board and protect the surface. Through polishing, small defects and unevenness on the surface of the insulation board can be removed, making it smoother. At the same time, a smooth surface helps to reduce the attachment of dust particles, thereby reducing the risk of insulation leakage. Due to the relatively large size and weight of the super extra-high voltage insulation laminated board, it cannot be manually transported and turned over for inspection. If a crane is used to turn it over, the product may be easily damaged and operational risks may be caused. Therefore, a flow line device for turning and polishing is designed and manufactured. SUMMARY

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies in the prior art. The utility model provides a super extra-high voltage transformer laminated insulation board polishing equipment.

[0005] The technical solution adopted by the utility model to solve its technical problem is as follows: a super extra-high voltage transformer laminated insulation board polishing equipment, which comprises a feeding platform, a first polishing machine, a plate turning machine, a second polishing machine and a receiving platform arranged on the ground in sequence along the process, wherein,

[0006] The feeding platform is used for feeding and conveying the super extra-high voltage transformer laminated insulation board.

[0007] The first polishing machine is arranged downstream of the feeding platform and is used for polishing one side surface of the super extra-high voltage transformer laminated insulation board conveyed by the feeding platform.

[0008] The plate turning machine is arranged downstream of the first polishing machine and is used for receiving the super extra-high voltage transformer laminated insulation board polished by the first polishing machine and turning over the super extra-high voltage transformer laminated insulation board.

[0009] The second polishing machine is arranged downstream of the plate turning machine and is used for polishing the other side surface of the super extra-high voltage transformer laminated insulation board after turning over.

[0010] A receiving platform is arranged downstream of the second polishing machine and used to receive the super-high voltage transformer laminated insulation board polished by the second polishing machine and then transported to the next station or a packaging station.

[0011] Further, the feeding platform comprises a feeding transmission roller, a feeding motor, a feeding transmission belt and a feeding support, a plurality of feeding transmission rollers are arranged side by side on the feeding support along the conveying direction, the feeding transmission rollers are directly or indirectly in transmission connection with the feeding motor through the feeding transmission belt, and the feeding motor is fixed on the feeding support.

[0012] Further, the first polishing machine and the second polishing machine are identical in structure and comprise a polishing frame, a lifting assembly arranged at the middle part of the polishing frame, a polishing roller motor, a left polishing roller and a right polishing roller arranged on the lifting assembly, the polishing roller motor is arranged at the middle part of the left polishing roller and the right polishing roller, the left polishing roller and the right polishing roller are arranged in a staggered manner, the polishing roller motor is in transmission connection with the left polishing roller and the right polishing roller through a polishing roller transmission mechanism respectively, and the lifting assembly can drive the polishing roller motor, the left polishing roller and the right polishing roller to move synchronously up and down.

[0013] The polishing frame on the left and right sides of the lifting assembly is respectively provided with a left transmission roller and a right transmission roller, and the polishing frame is further provided with a transmission roller motor and a transmission roller speed reducer, the transmission roller speed reducer is connected to the output end of the transmission roller motor, the output end of the transmission roller speed reducer is in transmission connection with the left transmission roller and the right transmission roller through a synchronous belt respectively, and the left transmission roller and the right transmission roller are driven to rotate through the transmission roller motor, the transmission roller speed reducer and the synchronous belt.

[0014] The left transmission roller is provided with a left pressure roller above, the left pressure roller is connected with a polishing left pressure cylinder above, the left pressure roller is driven to move downward by the polishing left pressure cylinder, and a pressing force is generated between the left pressure roller and the left transmission roller, and the right transmission roller is provided with a right pressure roller above, the right pressure roller is connected with a polishing right pressure cylinder above, the right pressure roller is driven to move downward by the polishing right pressure cylinder, and a pressing force is generated between the right pressure roller and the right transmission roller.

[0015] Further, the lifting assembly comprises a lifting frame, at least one lifting machine is arranged below the lifting frame, and the lifting machine drives the lifting frame to move up and down through a transmission member.

[0016] Further, the turnover machine comprises an upper turnover frame and a lower turnover frame arranged in parallel, a clamping space of the extra-high voltage transformer laminated insulation board is formed between the upper turnover frame and the lower turnover frame, and side baffles are arranged on the right side of the upper turnover frame and the lower turnover frame to support the insulation board during turnover to avoid sliding out of the clamping space; support columns are arranged at the front and rear ends of the upper turnover frame and the lower turnover frame, turnover bearing seats are arranged on the support columns, the front and rear sides of the upper turnover frame and the lower turnover frame are connected through side connecting plates, and a turnover shaft is arranged on each side connecting plate and rotationally connected in the turnover bearing seat;

[0017] Further, the turnover machine comprises an upper turnover frame and a lower turnover frame arranged in parallel, a clamping space of the extra-high voltage transformer laminated insulation board is formed between the upper turnover frame and the lower turnover frame, and side baffles are arranged on the right side of the upper turnover frame and the lower turnover frame to support the insulation board during turnover to avoid sliding out of the clamping space; support columns are arranged at the front and rear ends of the upper turnover frame and the lower turnover frame, turnover bearing seats are arranged on the support columns, the front and rear sides of the upper turnover frame and the lower turnover frame are connected through side connecting plates, and a turnover shaft is arranged on each side connecting plate and rotationally connected in the turnover bearing seat;

[0018] Further, the upper turnover frame is provided with upper conveying rollers and an upper conveying roller motor, the upper conveying rollers are arranged in parallel on one side of the upper turnover frame facing the clamping space along the conveying direction, and the upper conveying roller motor is connected to some or all of the upper conveying rollers through a turnover synchronous belt transmission.

[0019] The lower turnover frame is provided with lower conveying rollers and a lower conveying roller motor, the lower conveying rollers are arranged in parallel on one side of the lower turnover frame facing the clamping space along the conveying direction, and the lower conveying roller motor is connected to some or all of the lower conveying rollers through a turnover synchronous belt transmission.

[0020] Further, a brake is arranged on the turnover shaft without the turnover gear.

[0021] Further, in order to avoid the super extra-high voltage transformer laminated insulation board from shaking in the clamping space and causing damage to the surface during turnover, a plurality of turnover pressing air cylinders are arranged above the upper turnover frame of the turnover machine, a pressing plate is arranged below each turnover pressing air cylinder, and the pressing plate is driven by the turnover pressing air cylinder to generate a pressing force in the direction of the super extra-high voltage transformer laminated insulation board. Thus, the super extra-high voltage transformer laminated insulation board is fixed in the clamping space to avoid damage during turnover.

[0022] Further, the material receiving platform comprises a material receiving transmission roller, a material receiving motor, a material receiving transmission belt and a material receiving support, a plurality of material receiving transmission rollers are arranged side by side on the material receiving support along the conveying direction, the material receiving transmission roller is directly or indirectly in transmission connection with the material receiving motor through the material receiving transmission belt, and the material receiving motor is fixed on the material receiving support.

[0023] Further, in order to adjust the height between the plate turning machine and the two polishing machines, and ensure that the insulation plate can smoothly circulate between processes, a pit is arranged on the ground below the plate turning machine, and the supporting column of the plate turning machine is fixed in the pit.

[0024] The polishing equipment for the super-high-voltage transformer laminated insulation plate has the advantages that a complete set of automatic polishing equipment is provided, the processing requirement of double-side polishing of the laminated insulation plate is met, full-automatic operation is realized, damage to the laminated insulation plate is avoided, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] The utility model makes further explanation in combination with the drawings and examples.

[0026] Figure 1 It is the structure schematic diagram of the polishing equipment for the super-high-voltage transformer laminated insulation plate.

[0027] Figure 2 It is the top view structure schematic diagram of Figure 1 .

[0028] Figure 3 It is the side structure schematic diagram of the material feeding platform.

[0029] Figure 4 It is the top view structure schematic diagram of the material feeding platform.

[0030] Figure 5 It is the side structure schematic diagram of the polishing machine.

[0031] Figure 6 It is the top view structure schematic diagram (partial structure) of the polishing machine.

[0032] Figure 7 It is the side structure schematic diagram (partial structure) of the polishing machine.

[0033] Figure 8 It is the side structure schematic diagram of the plate turning machine.

[0034] Figure 9 It is the top view structure schematic diagram of the plate turning machine.

[0035] In the figure: 1, feeding platform, 11, feeding transmission roller, 12, feeding motor, 13, feeding transmission belt, 14, feeding support; 2, first polishing machine, 2.1, polishing machine frame, 2.2, transmission roller motor, 2.3, transmission roller speed reducer, 2.4, first synchronous belt, 2.5, second synchronous belt, 2.6, third synchronous belt, 2.7, left transmission roller, 2.8, right transmission roller, 2.9, polishing left pressure cylinder, 2.10, polishing right pressure cylinder, 2.11, left pressure wheel, 2.12, right pressure wheel, 2.13, left polishing roller, 2.14, right polishing roller, 2.15, polishing roller motor, 2.16, front elevator, 2.17, dust cover, 2.18, rear elevator, 2.19, polishing roller transmission mechanism, 2.20, lifting frame, 2.21, left cross beam, 2.22, right cross beam, 2.23, machine frame stand, 2.24, guide rail; 3, turnover machine, 3.1, upper turnover frame, 3.2, lower turnover frame, 3.3, support stand, 3.4, upper conveying roller, 3.5, lower conveying roller, 3.6, upper conveying roller motor, 3.7, lower conveying roller motor, 3.8, turnover pressure cylinder, 3.9, side connecting plate, 3.10, turnover synchronous belt, 3.11, turnover transmission motor, 3.12, turnover speed reducer, 3.13, turnover gear, 3.14, brake, 3.15, turnover bearing seat, 3.16, turnover shaft, 3.17, side baffle; 4, second polishing machine; 5, receiving platform, 51, receiving transmission roller, 52, receiving motor, 53, receiving transmission belt, 54, receiving support; 6, ground, 61, pit. DETAILED DESCRIPTION

[0036] The utility model will be explained in further detail in combination with the drawings. These drawings are all simplified schematic diagrams, and only schematically show the basic structure of the utility model, so they only show the structure related to the utility model, and the direction and reference (such as up, down, left, right, etc.) can be only used to help the description of the features in the drawings. Therefore, the following detailed description is not in the restrictive sense, and the scope of the claimed subject matter is only defined by the appended claims and their equivalents.

[0037] As Figure 1 And Figure 2The utility model discloses a kind of polishing equipment of ultra-high voltage transformer laminated insulation board, including feeding platform 1, first polisher 2, plate turnover machine 3, second polisher 4 and receiving platform 5 that are sequentially arranged on ground 6 along process, wherein, feeding platform 1 is used to feed conveying to ultra-high voltage transformer laminated insulation board;First polisher 2 is arranged downstream of feeding platform 1, for polishing the side surface of ultra-high voltage transformer laminated insulation board conveyed by feeding platform 1;Plate turnover machine 3 is arranged downstream of first polisher 2, for receiving the ultra-high voltage transformer laminated insulation board polished after first polisher 2, and the ultra-high voltage transformer laminated insulation board is turned over up and down;Second polisher 4 is arranged downstream of plate turnover machine 3, for polishing the other side surface of ultra-high voltage transformer laminated insulation board after turning over;Receiving platform 5 is arranged downstream of second polisher 4, for receiving the ultra-high voltage transformer laminated insulation board polished after second polisher 4, and conveying to next station or conveying to packaging station.To adjust the height between plate turnover machine 3 and two polishers, to ensure that the insulation board can be smoothly circulated between processes, the ground 6 below the plate turnover machine 3 is also provided with a pit 61, and the support column 3.3 of the plate turnover machine 3 is fixed in the pit 61.

[0038] As Figure 3 And Figure 4 The feeding platform 1 includes feeding transmission rollers 11, a feeding motor 12, a feeding transmission belt 13 and a feeding support 14, a plurality of feeding transmission rollers 11 are arranged side by side on the feeding support 14 along the conveying direction, the feeding transmission rollers 11 are directly or indirectly connected with the feeding motor 12 through the feeding transmission belt 13, and the feeding motor 12 is fixed on the feeding support 14. In the embodiment, the feeding transmission rollers 11 are five, arranged in parallel on the feeding support 14, and rotatably connected through bearing seats at both ends, and the adjacent two feeding transmission rollers 11 are connected through the feeding transmission belt 13 and connected with the feeding motor 12.

[0039] As Figure 1 And Figure 2 The structure of the receiving platform 5 is basically the same as that of the feeding platform 1, and the receiving platform 5 includes receiving transmission rollers 51, a receiving motor 52, a receiving transmission belt 53 and a receiving support 54, which correspond to the feeding transmission rollers 11, the feeding motor 12, the feeding transmission belt 13 and the feeding support 14 of the feeding platform 1 respectively, and have the same connection relationship as the structures of the feeding platform 1, so the structure of the receiving platform 5 will not be described here.

[0040] As Figures 5-7As shown, the first polishing machine 2 and the second polishing machine 4 are the same structure, including a polishing machine frame 2.1, a plurality of frame stand columns 2.23 for supporting are arranged on the polishing machine frame 2.1, a lifting assembly is arranged in the middle of the polishing machine frame 2.1, a polishing roller motor 2.15, a left polishing roller 2.13 and a right polishing roller 2.14 are arranged on the lifting assembly, the polishing roller motor 2.15 is arranged in the middle of the left polishing roller 2.13 and the right polishing roller 2.14, and the left polishing roller 2.13 and the right polishing roller 2.14 are arranged in a staggered manner, the polishing roller motor 2.15 is in driving connection with the left polishing roller 2.13 and the right polishing roller 2.14 through a polishing roller transmission mechanism 2.19 respectively, and the lifting assembly can drive the polishing roller motor 2.15, the left polishing roller 2.13 and the right polishing roller 2.14 to move synchronously up and down; a left transmission roller 2.7 and a right transmission roller 2.8 are arranged on the polishing machine frame 2.1 on the left and right sides of the lifting assembly respectively, a transmission roller motor 2.2 and a transmission roller speed reducer 2.3 are further arranged on the polishing machine frame 2.1, the transmission roller speed reducer 2.3 is connected to the output end of the transmission roller motor 2.2, the output end of the transmission roller speed reducer 2.3 is in driving connection with the left transmission roller 2.7 and the right transmission roller 2.8 through a synchronous belt respectively, and the left transmission roller 2.7 and the right transmission roller 2.8 are driven to rotate through the transmission roller motor 2.2, the transmission roller speed reducer 2.3 and the synchronous belt, in the embodiment, the synchronous belt is three, which are a first synchronous belt 2.4, a second synchronous belt 2.5 and a third synchronous belt 2.6, the output end of the transmission roller speed reducer 2.3 is connected to the left transmission roller 2.7 through the second synchronous belt 2.5, the output end of the transmission roller speed reducer 2.3 is connected to a driven shaft on the right side through the first synchronous belt 2.4 which crosses the polishing machine frame 2.1, and the driven shaft is connected to the right transmission roller 2.8 through the third synchronous belt 2.6, so that the left and right transmission rollers are driven to rotate synchronously by one motor; a left pressing wheel 2.11 is arranged above the left transmission roller 2.7, the left pressing wheel 2.11 is connected with a polishing left pressing cylinder 2.9 above it, the polishing left pressing cylinder 2.9 is connected to a guide rail 2.24 of a left cross beam 2.21, the left pressing wheel 2.11 is driven to move downward by the polishing left pressing cylinder 2.9, and a pressing force is generated between the left pressing wheel 2.11 and the left transmission roller 2.7, the polishing left pressing cylinder 2.9 and the left pressing wheel 2.11 have two groups which are arranged at two ends of the left cross beam 2.21 respectively, the distance between the left pressing wheels 2.11 is adjusted by adjusting the distance between the two polishing left pressing cylinders 2.9 on the left cross beam 2.21, so as to adapt to insulating plates of different widths; a right pressing wheel 2.12 is arranged above the right transmission roller 2.8, the right pressing wheel 2.12 is connected with a polishing right pressing cylinder 2.10 above it, the polishing right pressing cylinder 2.10 is connected to a guide rail 2.24 of a right cross beam 2.22, the right pressing wheel 2.12 is driven to move downward by the polishing right pressing cylinder 2.10, and a pressing force is generated between the right pressing wheel 2.12 and the right transmission roller 2.8, the polishing right pressing cylinder 2.10 and the right pressing wheel 2.12 have two groups which are arranged at two ends of the right cross beam 2.22 respectively, the distance between the right pressing wheels 2.12 is adjusted by adjusting the distance between the two polishing right pressing cylinders 2.10 on the right cross beam 2.22, so as to adapt to insulating plates of different widths.12two groups are arranged at the two ends of the right cross beam 2.22, by adjusting the distance between the two polishing right material pressing cylinders 2.10 between the right cross beam 2.22, so as to adjust the distance between the right material pressing wheel 2.12, so as to adapt to different width of insulating plate. In the embodiment, the left cross beam 2.21 and the right cross beam 2.22 are both gantry structure, the lower end is fixedly connected on the left and right sides of the polishing machine frame 2.1;The left transmission roller 2.7, the right transmission roller 2.8, the left polishing roller 2.13, the right polishing roller 2.14 and the two ends of the polishing roller transmission mechanism 2.19 are all connected with bearing seat, and the stable rotation is supported through the bearing in the bearing seat. The lifting assembly comprises a lifting frame 2.20, at least one elevator is arranged below the lifting frame 2.20, and the elevator drives the lifting frame 2.20 to move up and down through a transmission member. In the embodiment, the preferred elevator is two, which are respectively a front elevator 2.16 arranged in front of the lifting frame 2.20 and a rear elevator 2.18 arranged at the rear end of the lifting frame 2.20, and the transmission member has various implementation manners, including but not limited to adopting a linear module or a screw rod assembly.

[0041] As Figure 8 And Figure 9As shown, the turnover machine 3 comprises an upper turnover frame 3.1 and a lower turnover frame 3.2 arranged in parallel, a clamping space of the laminated insulation board of the extra-high voltage transformer is formed between the upper turnover frame 3.1 and the lower turnover frame 3.2, and side baffles 3.17 are arranged on the right side of the upper turnover frame 3.1 and the lower turnover frame 3.2 to support the insulation board during turnover to avoid sliding out of the clamping space; support columns 3.3 are arranged at the front and rear ends of the upper turnover frame 3.1 and the lower turnover frame 3.2, respectively, turnover shafts 3.16 bearings 3.15 are arranged on the support columns 3.3, the front and rear sides of the upper turnover frame 3.1 and the lower turnover frame 3.2 are connected through side connecting plates 3.9, a turnover shaft 3.16 is arranged on each side connecting plate 3.9, and the turnover shaft 3.16 is rotatably connected in the turnover shaft 3.16 bearing 3.15; further comprising a turnover driving assembly, the turnover driving assembly comprises a turnover transmission motor 3.11, a turnover speed reducer 3.12 and a turnover gear 3.13, the turnover transmission motor 3.11 and the turnover speed reducer 3.12 are arranged on the side of the support column 3.3 and fixedly connected with the support column 3.3, the output end of the turnover transmission motor 3.11 is connected with the turnover speed reducer 3.12, a transmission gear is arranged on the output shaft of the turnover speed reducer 3.12, the turnover gear 3.13 is coaxially fixedly connected with the turnover shaft 3.16 on the same side of the turnover transmission motor 3.11, and the turnover gear 3.13 is meshed with the transmission gear on the output shaft of the turnover speed reducer 3.12, the turnover transmission motor 3.11 and the turnover speed reducer 3.12 drive the turnover gear 3.13 to rotate, the turnover gear 3.13 drives the turnover shaft 3.16 to rotate, thereby driving the upper turnover frame 3.1 and the lower turnover frame 3.2 to rotate as a whole. The upper turnover frame 3.1 is provided with upper conveying rollers 3.4 and an upper conveying roller motor 3.6, the upper conveying rollers 3.4 are a plurality of rollers arranged in parallel on one side of the upper turnover frame 3.1 facing the clamping space in the conveying direction, and the upper conveying roller motor 3.6 is connected with part or all of the upper conveying rollers 3.4 through a turnover synchronous belt 3.10; the lower turnover frame 3.2 is provided with lower conveying rollers 3.5 and a lower conveying roller motor 3.7, the lower conveying rollers 3.5 are a plurality of rollers arranged in parallel on one side of the lower turnover frame 3.2 facing the clamping space in the conveying direction, and the lower conveying roller motor 3.7 is connected with part or all of the lower conveying rollers 3.5 through a turnover synchronous belt 3.10. In this embodiment, part of the upper conveying rollers 3.4 and the lower conveying rollers 3.5 are driving rollers 3.4a and part are driven rollers 3.4b, the driving rollers 3.4a are directly connected with the motor for rotation driven by the motor, and the driven rollers 3.4b are only rotatably connected with the turnover frame without being connected with the motor. Further comprising a brake 3.14 arranged on the turnover shaft 3.16 without the turnover gear 3.13. In this embodiment, the turnover gear 3.13 is installed on the front turnover shaft 3.16, and the brake 3.14 is installed on the rear turnover shaft 3.16.In order to avoid the shaking of the ultra-high voltage transformer laminated insulation board in the clamping space during the turnover process, causing damage to the surface, a plurality of turnover pressure cylinders 3.8 are further arranged above the upper turnover frame 3.1 of the turnover machine 3, and a pressing plate is arranged below each turnover pressure cylinder 3.8. The turnover pressure cylinder 3.8 drives the pressing plate to generate a pressing force in the direction of the ultra-high voltage transformer laminated insulation board. Thus, the ultra-high voltage transformer laminated insulation board is fixed in the clamping space, avoiding damage during the turnover process.

[0042] Working principle:

[0043] (1) The laminated insulation board (referred to as workpiece) is pushed onto the feeding platform 1. The feeding transmission roller 11 of the feeding platform 1 is powered and transmits the laminated insulation board under the action of friction.

[0044] (2) The feeding platform 1 sends the workpiece into the first polishing machine 2. The transmission roller of the first polishing machine 2 is powered, and the upper pressure cylinder receives the sensor signal after the workpiece is sent in to press the workpiece tightly for synchronous transmission and polishing. Due to the diameter size of the polishing roller and the cutting amount required for polishing the workpiece, the polishing roller and the polishing roller motor 2.15 can be lifted synchronously by the elevator control to control the cutting amount of polishing. With the polishing movement of the workpiece, the outlet of the polishing machine also has transmission rollers and pressure rollers for synchronous transmission. The polishing machine is provided with a dust hood 2.17, and the dust hood 2.17 is provided with a plurality of dust suction ports for collecting dust generated during polishing.

[0045] (3) The workpiece polished on one side is automatically sent into the turnover machine 3. The working surface of the upper turnover frame 3.1 and the lower turnover frame 3.2 of the turnover machine 3 is provided with transmission rollers and position sensors. The workpiece is pressed by the pressing cylinder, and then rotated by 180° by the turnover transmission motor 3.11 and the turnover gear 3.13. The turnover shaft 3.16 is provided with a brake 3.14. When the turnover frame stops, the brake 3.14 locks the turnover machine 3, so that the turnover machine 3 cannot fluctuate and the reduction machine of the turnover transmission motor 3.11 is self-locking to prevent the brake 3.14 from failing.

[0046] (4) The workpiece after turnover is sent into the second polishing machine 4 by the conveying roller of the turnover machine for polishing. The polishing principle is the same as that of the first polishing machine 2, and thus is not described here.

[0047] (5) The polished workpiece is automatically sent to the receiving platform 5, and the upper and lower surfaces of the workpiece are polished and inspected through the above five steps.

[0048] With the above ideal embodiment of the present application as the inspiration, through the above description, relevant staff can make various changes and modifications without deviating from the scope of the present application. The technical scope of the present application is not limited to the content in the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. An apparatus for polishing laminated insulation boards of an ultra extra high voltage transformer, characterized by: The polishing machine comprises a feeding platform, a first polishing machine, a plate turning machine, a second polishing machine and a receiving platform arranged on the ground in sequence along the process, wherein, The feeding platform is used for feeding and conveying the super-high voltage transformer laminated insulation board. The first polishing machine is arranged downstream of the feeding platform and is used for polishing one side surface of the super-high voltage transformer laminated insulation board conveyed by the feeding platform. The plate turning machine is arranged downstream of the first polishing machine and is used for receiving the super-high voltage transformer laminated insulation board polished by the first polishing machine and turning the super-high voltage transformer laminated insulation board upside down. The second polishing machine is arranged downstream of the plate turning machine and is used for polishing the other side surface of the super-high voltage transformer laminated insulation board turned upside down. The receiving platform is arranged downstream of the second polishing machine and is used for receiving the super-high voltage transformer laminated insulation board polished by the second polishing machine and conveying the super-high voltage transformer laminated insulation board to the next station or a packaging station.

2. The ultra extra high voltage transformer laminated insulation board polishing apparatus as claimed in claim 1, wherein: The feeding platform comprises feeding transmission rollers, a feeding motor, a feeding transmission belt and a feeding support. A plurality of feeding transmission rollers are arranged side by side on the feeding support along the conveying direction. The feeding transmission rollers are directly or indirectly connected in transmission with the feeding motor through the feeding transmission belt. The feeding motor is fixed on the feeding support.

3. The ultra extra high voltage transformer laminated insulation board polishing apparatus as claimed in claim 1, wherein: The first polishing machine and the second polishing machine have the same structure and comprise a polishing machine frame, a lifting assembly arranged in the middle of the polishing machine frame, a polishing roller motor, a left polishing roller and a right polishing roller arranged on the lifting assembly. The polishing roller motor is arranged in the middle of the left polishing roller and the right polishing roller and the left polishing roller and the right polishing roller are arranged in a staggered manner. The polishing roller motor is connected in transmission with the left polishing roller and the right polishing roller through a polishing roller transmission mechanism. The lifting assembly can drive the polishing roller motor, the left polishing roller and the right polishing roller to move synchronously up and down. Left transmission rollers and right transmission rollers are arranged on the polishing machine frame on the left and right sides of the lifting assembly respectively. A transmission roller motor and a transmission roller speed reducer are further arranged on the polishing machine frame. The transmission roller speed reducer is connected to the output end of the transmission roller motor. The output end of the transmission roller speed reducer is connected in transmission with the left transmission rollers and the right transmission rollers through a synchronous belt respectively. A left pressure roller is arranged above the left transmission roller. The left pressure roller is connected with a polishing left pressure cylinder above the left pressure roller. The left pressure roller is driven by the polishing left pressure cylinder to move downward to generate a pressing force between the left pressure roller and the left transmission roller. A right pressure roller is arranged above the right transmission roller. The right pressure roller is connected with a polishing right pressure cylinder above the right pressure roller. The right pressure roller is driven by the polishing right pressure cylinder to move downward to generate a pressing force between the right pressure roller and the right transmission roller.

4. The ultra extra high voltage transformer laminated insulation board polishing apparatus as claimed in claim 3, wherein: The lifting assembly comprises a lifting frame. At least one lifting machine is arranged below the lifting frame. The lifting machine drives the lifting frame to move up and down through a transmission member.

5. The ultra extra high voltage transformer laminated insulation board polishing apparatus as claimed in claim 1, wherein: The turnover machine comprises an upper turnover frame and a lower turnover frame arranged in parallel, a clamping space of the ultra-high voltage transformer laminated insulation board is formed between the upper turnover frame and the lower turnover frame, and side baffles are arranged on the right sides of the upper turnover frame and the lower turnover frame. The turnover driving assembly comprises a turnover transmission motor, a turnover speed reducer and a turnover gear, the turnover transmission motor and the turnover speed reducer are arranged on the side surface of the support column and fixed to the support column, the output end of the turnover transmission motor is connected with the turnover speed reducer, a transmission gear is arranged on the output shaft of the turnover speed reducer, the turnover gear is coaxially fixed to the turnover shaft on the same side of the turnover transmission motor, and the turnover gear is engaged with the transmission gear on the output shaft of the turnover speed reducer, the turnover transmission motor and the turnover speed reducer drive the turnover gear to rotate, the turnover gear drives the turnover shaft to rotate, and thus the upper turnover frame and the lower turnover frame are integrally turned over.

6. The ultra extra high voltage transformer laminated insulation board polishing apparatus as claimed in claim 5, wherein: The upper turnover frame is provided with upper conveying rollers and an upper conveying roller motor, the upper conveying rollers are arranged in parallel on one side of the upper turnover frame facing the clamping space along the conveying direction, and the upper conveying roller motor is connected with part or all of the upper conveying rollers through a turnover synchronous belt. The lower turnover frame is provided with lower conveying rollers and a lower conveying roller motor, the lower conveying rollers are arranged in parallel on one side of the lower turnover frame facing the clamping space along the conveying direction, and the lower conveying roller motor is connected with part or all of the lower conveying rollers through a turnover synchronous belt.

7. The polishing equipment for ultra-high voltage transformer laminated insulation boards as described in claim 5, characterized in that: The turnover machine further comprises a brake, which is arranged on the turnover shaft without the turnover gear.

8. The ultra extra high voltage transformer laminated insulation board polishing apparatus as claimed in claim 5, wherein: The upper turnover frame of the turnover machine is further provided with a plurality of turnover material pressing cylinders, a pressing plate is arranged below each turnover material pressing cylinder, and the pressing plate is driven by the turnover material pressing cylinder to generate a pressing force in the direction of the ultra-high voltage transformer laminated insulation board.

9. The ultra extra high voltage transformer laminated insulation board polishing apparatus as claimed in claim 1, wherein: The receiving platform comprises receiving transmission rollers, a receiving motor, a receiving transmission belt and a receiving support, a plurality of receiving transmission rollers are arranged side by side on the receiving support along the conveying direction, the receiving transmission rollers are directly or indirectly connected with the receiving motor through the receiving transmission belt, and the receiving motor is fixed to the receiving support.

10. The ultra extra high voltage transformer laminated insulation board polishing apparatus as claimed in claim 1, wherein: The ground under the turnover machine is further provided with a pit, and the support column of the turnover machine is fixed in the pit.

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