A machining device and machining process for a wind power gear box inner ring gear

Abstract

The application relates to the technical field of internal gear ring processing, in particular to a processing device and processing technology for an internal gear ring of a wind power gear box, which comprises an internal gear ring fine grinding processing base, one side of the internal gear ring fine grinding processing base is provided with a parallel moving assembly, the upper portion of the parallel moving assembly is provided with a longitudinal moving assembly, the internal gear ring is automatically adjusted in position by the cooperation of an internal gear ring centering installation assembly and a chip removal assembly, so that the coaxiality of the internal gear ring and the processing platform is unified, the chip removal cover is not only clamped to the inner tooth surface of the internal gear ring under the cooperation of a rotating frame and a telescopic rod, so that the stability of internal gear ring grinding processing is increased, but also can drive the internal gear ring to rotate and replace the gear grinding area, meanwhile, the chip removal cover can be clamped to the side protective cover to assist in positioning, the chip generated in the internal gear ring grinding processing area is shielded, and the chip can be sucked and removed through the cooperation of a dust suction pipe and an industrial dust suction fan.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of internal gear ring processing, and particularly relates to a processing device and processing technology for an internal gear ring of a wind power gear box. BACKGROUND

[0002] The wind power gear box is one of key components in a wind turbine generator system, and its main function is to convert low-speed high-torque energy generated by a wind wheel under the action of wind into high-speed low-torque energy suitable for use of a generator. In this process, the internal gear ring, as an important component of the gear box, is usually used in cooperation with a planetary gear train, plays a role of supporting the planetary gear and participating in power transmission in the wind power gear box, and performs power transmission and speed ratio adjustment. The internal gear ring is located outside the planet carrier and surrounds one or more planetary gears. In order to withstand huge mechanical load and dynamic stress, the internal gear ring is usually made of high-strength alloy steel and is subjected to strict heat treatment process to improve hardness and wear resistance. In addition, the tooth surface of the internal gear ring needs to be subjected to high-precision grinding processing to ensure accurate tooth shape and high surface smoothness, so as to reduce friction loss and noise during operation. In order to perform high-precision grinding processing on the internal gear ring, it is necessary to ensure that the internal gear ring workpiece is coaxial with the machine tool worktable. In the prior art, the internal gear ring is generally processed in single piece, and the coaxiality of the workpiece and the machine tool worktable needs to be manually corrected. The workpiece is manually pressed tightly, but the precision of the manually corrected gear ring has errors, which may affect the grinding precision of the tooth surface of the internal gear ring in the subsequent process.

[0003] The Chinese patent document with the publication number CN111889821A proposes an automatic centering and pressing device for internal gear ring gear processing. The device drives the outer ring and the inclined surface adjustment block fixed to the outer ring to rotate through a thin hydraulic cylinder. The inclined surface adjustment block rotates in a circle to push the three uniformly distributed rollers to move along the radial direction of the workpiece, so that the internal gear ring is automatically adjusted in position until the center of the gear ring coincides with the center of the worktable. However, the internal gear ring is surrounded after being automatically centered and installed, and the chips may splash or accumulate in the middle processing area of the device during the subsequent fine grinding process of the tooth surface, which affects the processing precision.

[0004] Therefore, the present application proposes a processing device and processing technology for an internal gear ring of a wind power gear box to solve the problem that the internal gear ring is surrounded after being automatically centered and installed by relying on the device to push the internal gear ring to move for centering and installation, and the chips may splash or accumulate in the middle processing area of the device during the subsequent fine grinding process of the tooth surface, which affects the processing precision. The internal gear ring mounting seat is improved and designed, the internal gear ring centering structure and the automatic chip removal structure are integrated, the chips generated during the subsequent gear grinding can be automatically collected after the internal gear ring is automatically centered and installed, and the accumulation or splashing of the chips is avoided to affect the processing precision. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application aims to provide a machining device and machining process for a wind power gear box inner gear ring to solve the problems presented in the background art.

[0006] To achieve the above object, the present application provides the following technical scheme: a machining device for a wind power gear box inner gear ring, comprising an inner gear ring fine grinding base, a parallel moving assembly is arranged on one side of the inner gear ring fine grinding base, a longitudinal moving assembly is arranged above the parallel moving assembly, a center mounting frame is fixedly installed on the middle of the upper surface of the inner gear ring fine grinding base, a chip removal assembly is arranged on the middle of the center mounting frame, the chip removal assembly comprises a rotating frame, an extension rod, a chip removal cover and a dust suction pipe, a fine grinding mounting frame is arranged on the side of the longitudinal moving assembly close to the inner gear ring fine grinding base, a fine grinding assembly is fixedly installed on one end of the fine grinding mounting frame, a side protection cover I is arranged on the side of the fine grinding assembly close to the chip removal cover, an inner gear ring centering installation assembly is arranged on the outer side above the inner gear ring fine grinding base, and the inner gear ring centering installation assembly comprises a mounting shell and an inner gear ring centering installation frame.

[0007] Preferably, the rotating frame is rotatably installed in the middle of the center mounting frame, the extension rod is fixedly installed on the upper surface of the rotating frame, the output end of the extension rod is fixedly connected with the side surface of the chip removal cover, the inner side wall of the chip removal cover is uniformly provided with a through groove, the dust suction pipe is fixedly installed on the inner side of the center mounting frame, the dust suction pipe penetrates through the bottom inner wall of the center mounting frame, the upper end of the dust suction pipe is fixedly installed with a corrugated branch pipe, and one end of the corrugated branch pipe is fixedly connected with the side surface of the chip removal cover.

[0008] Preferably, the side surface of the chip removal cover is provided with a through hole matched with the corrugated branch pipe, the two side walls of the chip removal cover are symmetrically fixedly installed with fixing frames, a floating claw is rotatably installed in the inner end of one end of the fixing frame, and elastic limiting washers are fixedly installed between the two side surfaces of the floating claw and the inner side wall of the fixing frame.

[0009] Preferably, the side surface of the chip removal cover is provided with a through hole matched with the corrugated branch pipe, the two side walls of the chip removal cover are symmetrically fixedly installed with fixing frames, a floating claw is rotatably installed in the inner end of one end of the fixing frame, and elastic limiting washers are fixedly installed between the two side surfaces of the floating claw and the inner side wall of the fixing frame.

[0010] Preferably, the side surface of the chip removal cover is provided with a through hole matched with the corrugated branch pipe, the two side walls of the chip removal cover are symmetrically fixedly installed with fixing frames, a floating claw is rotatably installed in the inner end of one end of the fixing frame, and elastic limiting washers are fixedly installed between the two side surfaces of the floating claw and the inner side wall of the fixing frame.

[0011] Preferably, the mounting shell is fixedly installed above the outer side of the inner tooth ring fine grinding base, a fan-shaped dust suction groove body is fixedly installed inside the side of the mounting shell close to the longitudinal moving assembly, a chip removal groove is formed above the fan-shaped dust suction groove body, a fan-shaped dust suction branch pipe is fixedly installed on the side wall of the dust suction pipe, one end of the fan-shaped dust suction branch pipe is fixedly connected with the side wall of the fan-shaped dust suction groove body, a processing table is fixedly installed above the mounting shell through bolts, and the processing table is horseshoe-shaped.

[0012] Preferably, the inner tooth ring centering mounting frame is provided with three groups, the lower surfaces of the three groups of inner tooth ring centering mounting frames are in contact with the upper surfaces of the mounting shell and the processing table, the included angle of the two groups of inner tooth ring centering mounting frames close to one side of the longitudinal moving assembly is 60°, and the other group of inner tooth ring centering mounting frames is arranged on an axis coinciding with the longitudinal moving assembly.

[0013] Preferably, the inner side surface of the mounting shell is fixedly installed with a moving guide rail matched with the position of the inner tooth ring centering mounting frame, a threaded rod is rotatably installed in the moving guide rail, a T-shaped plate is arranged at the bottom of the inner tooth ring centering mounting frame and is in sliding connection with the inner tooth ring centering mounting frame, the bottom side wall of the T-shaped plate is in threaded connection with the outer surface of the threaded rod, and a sliding groove matched with the inner tooth ring centering mounting frame is formed in the side wall of the mounting shell.

[0014] Preferably, the inner side surface of the mounting shell is fixedly installed with a moving guide rail matched with the position of the inner tooth ring centering mounting frame, a threaded rod is rotatably installed in the moving guide rail, a T-shaped plate is arranged at the bottom of the inner tooth ring centering mounting frame and is in sliding connection with the inner tooth ring centering mounting frame, the bottom side wall of the T-shaped plate is in threaded connection with the outer surface of the threaded rod, and a sliding groove matched with the inner tooth ring centering mounting frame is formed in the side wall of the mounting shell.

[0015] The application further provides a processing technology for an inner tooth ring of a wind power gear box, and the processing technology comprises the following steps: step one, placing the inner tooth ring; first, the inner tooth ring centering mounting frame is moved in centering under the limiting cooperation of the moving guide rail and the mounting shell, the position of the inner tooth ring is adjusted, the inner tooth ring is placed on the mounting platform and is inside the centering limiting seat, after the inner tooth ring is placed, the position of the inner tooth ring centering mounting frame is continuously adjusted, at this time, the inner tooth ring centering mounting frame automatically finely adjusts the position of the inner tooth ring, until the centering limiting seat abuts against the outer wall of the inner tooth ring, at this time, the center of the inner tooth ring coincides with the center of the processing table, and the inner tooth ring and the processing table are coaxially placed;

[0016] Step two, determining the first processing area; the telescopic rod drives the chip removal cover to move, so that the chip removal cover is close to the tooth surface of the inner tooth ring, and the floating claw in the fixed frame is adaptively floated and turned when the chip removal cover moves towards the inner tooth ring, so as to correctly engage with the tooth surface, and the tooth surface inside the chip removal cover is determined as the first processing area.

[0017] Step three, the tooth grinding is carried out, the parallel moving assembly adjusts the distance between the longitudinal moving assembly and the inner gear ring precision grinding base according to the diameter of the inner gear ring to be machined, the longitudinal moving assembly drives the precision grinding assembly to vertically move down through the precision grinding mounting frame, the precision grinding assembly is provided with a small driving motor and a mounting shaft seat at the bottom, and a tooth grinding roller is fixedly arranged on the mounting shaft seat through bolts, when the tooth grinding roller at the bottom of the precision grinding assembly is lowered above the inner gear ring, the side protection cover one and the side protection cover two are located at the lowest position of the limiting sliding groove at the side of the precision grinding assembly, at this time, the sealing guide ring below the side protection cover one is clamped into the inside of the chip removal cover, the side protection cover one and the chip removal cover form a complete dust cover located outside the tooth grinding roller and in a half-enclosed mode, the side protection cover two is above the surface of the inner gear ring, the right-angle groove of the guide groove plate tightly presses the inner gear ring, then the precision grinding assembly continues to move down, the small driving motor drives the mounting shaft seat and the tooth grinding roller to rotate, the tooth surface of the inner gear ring is subjected to high-precision grinding, and the industrial dust collection fan starts to work, under the cooperation of the dust collection pipe and the fan-shaped dust collection branch pipe, the dust cover, the side protection cover one and the dust cover form a suction cover to suck the splashed chips on the side of the tooth grinding roller, and the dust collection pipe and the corrugated branch pipe are used to suck the fan-shaped dust collection groove body, so that the chips generated during the tooth grinding are sucked out through the chip removal groove.

[0018] Step four, the machining area is replaced, after the local tooth surface tooth grinding is completed, the precision grinding mounting frame is lifted to the highest point under the cooperation of the longitudinal moving assembly, the side protection cover one is separated from the chip removal cover, the side protection cover two cancels the pressing effect on the inner gear ring, at this time, the inner gear ring is rotated by the cooperation of the rotating frame, the telescopic rod and the chip removal cover by a certain angle in the clockwise direction, the machined part of the inner gear ring is rotated out, then the telescopic rod is reset to drive the chip removal cover to retreat and cancel the clamping of the floating claw on the inner gear ring, then the rotating frame is rotated counterclockwise by the same angle to reset the chip removal cover, finally the telescopic rod pushes the chip removal cover to move again so that the floating claw in the fixed frame is clamped with the tooth surface again, the precision grinding assembly is repeatedly moved down under the cooperation of the precision grinding mounting frame and the longitudinal moving assembly, the sealing guide ring below the side protection cover one is clamped into the inside of the chip removal cover again, the right-angle groove of the guide groove plate is used to press the inner gear ring again, finally the precision grinding assembly is moved down again to make the tooth grinding roller continue to grind the inner gear ring, and the industrial dust collection fan works again to suck the chips generated during the tooth grinding through the dust collection pipe, the machining area is repeatedly replaced until the inner gear ring is completely machined.

[0019] Compared with the prior art, the beneficial effects of the present application are:

[0020] By designing the inner gear ring concentric installation assembly and the chip removal assembly, the inner gear ring can be lifted in height during installation, the tooth surface of the inner gear ring is polished completely, the position of the inner gear ring is automatically adjusted, the coaxiality of the inner gear ring and the machining platform is kept uniform, the inner side tooth surface of the inner gear ring is clamped by the chip removal cover under the cooperation of the rotating frame and the telescopic rod, the stability of the inner gear ring grinding is improved, the inner gear ring is driven to rotate and change the grinding area, the chip removal cover two is clamped with the side protection cover to assist positioning, the chip generated during the inner gear ring grinding is shielded, the chip is sucked by the cooperation of the dust suction pipe and the industrial dust suction fan, the outer side of the machining area is shielded by the chip removal cover two, the chip suction area is more concentrated, the chip is more easily sucked, the chip is prevented from splashing, and the inner gear ring is pressed by the guide groove plate to improve the stability of the inner gear ring machining. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the whole application;

[0022] Figure 2 It is a schematic diagram of the structure of the whole application in the inner gear ring machining state;

[0023] Figure 3 It is a schematic diagram of the structure of the whole application after the machining table is removed;

[0024] Figure 4 It is a schematic diagram of the structure of the whole application after the installation shell and the machining table are removed;

[0025] Figure 5 It is a schematic diagram of the structure of the whole application in the inner gear ring rotating and changing the machining area state;

[0026] Figure 6 It is a schematic diagram of the structure of the whole application in the inner gear ring machining state;

[0027] Figure 7 It is a schematic diagram of the structure of the installation shell inside the application;

[0028] Figure 8 It is a schematic diagram of the structure of the whole application in the inner gear ring machining state;

[0029] Figure 9 It is a schematic diagram of the structure of the whole application in the inner gear ring machining state;

[0030] Figure 10 It is a schematic diagram of the structure of the whole application in the inner gear ring machining state;

[0031] Figure 11 It is a schematic diagram of the structure of the whole application in the inner gear ring machining state;

[0032] Figure 12 The schematic diagram of the overall structure of the inner gear ring concentric mounting frame of the present application;

[0033] Figure 13 The schematic diagram of the internal structure of the mounting platform of the present application;

[0034] Figure 14 The schematic diagram of the structure after the oblique roller is disassembled of the present application;

[0035] Figure 15 The schematic diagram of the overall structure of the oblique roller of the present application;

[0036] Figure 16 The schematic diagram of the overall structure of the inner gear ring concentric mounting frame of the present application; Figure 8 The schematic diagram of the enlarged structure of A of the present application;

[0037] Figure 17 The schematic diagram of the processing method flow of the present application.

[0038] In the figure: 1, inner gear ring fine grinding processing base; 11, center mounting frame; 2, parallel moving assembly; 3, longitudinal moving assembly; 4, fine grinding mounting frame; 41, fine grinding assembly; 42, side protective cover I; 421, sealing guide ring; 43, side protective cover II; 431, guide groove plate; 5, inner gear ring concentric mounting assembly; 51, mounting shell; 52, processing table; 53, moving guide rail; 54, inner gear ring concentric mounting frame; 541, mounting platform; 5411, oblique roller; 5412, oblique roller mounting shaft; 5413, locking limiting ring; 5414, rotating limiting tooth; 542, concentric limiting seat; 5421, ball; 55, fan-shaped dust suction groove body; 551, chip removal through groove; 6, chip removal assembly; 61, rotating frame; 62, telescopic rod; 63, chip removal cover; 631, fixed frame; 6311, floating claw; 64, dust suction pipe; 641, fan-shaped dust suction branch pipe; 642, corrugated branch pipe; 65, industrial dust suction fan; 651, air suction pipe; 652, filter cover net; 66, chip collection cylinder; 661, upper sealing ring; 662, chip removal sealing plug. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical scheme of the present application clear, complete description, and the advantages are more clear and obvious, the following will be further described in detail by combining with the drawings. It should be understood that the specific embodiments described here are part of the embodiments of the present application, not all the embodiments, only to explain the embodiments of the present application, and not for limiting the embodiments of the present application, all other embodiments obtained by the ordinary skill in the art without doing creative work, belong to the scope of protection of the present application.

[0040] Example one

[0041] Please refer to Figures 1 to 16The application provides a technical scheme: a machining device for an inner gear ring of a wind power gear box, which comprises an inner gear ring fine grinding machining base 1, a parallel moving assembly 2 arranged on one side of the inner gear ring fine grinding machining base 1, and a longitudinal moving assembly 3 arranged above the parallel moving assembly 2, wherein the parallel moving assembly 2 is composed of a bottom sliding seat, a sliding platform arranged above the sliding seat and a bottom driving assembly arranged at the rear end of the sliding seat, the longitudinal moving assembly 3 is mainly composed of a longitudinal sliding seat arranged on the sliding platform, a longitudinal sliding platform arranged on the inner side of the longitudinal sliding seat and a longitudinal driving assembly arranged above the longitudinal sliding seat, the specific working mode is that the bottom driving assembly can drive the sliding platform to slide on the bottom sliding seat, the longitudinal sliding seat arranged on the sliding platform is moved, and the inner gear ring fine grinding machining base 1 is approached or moved away, so that the distance from the inner gear ring fine grinding machining base 1 is adjusted according to the diameter of the inner gear ring to be machined, the longitudinal driving assembly can drive the longitudinal sliding platform to vertically move up and down along the longitudinal sliding seat, the fine grinding mounting frame 4 mainly serves to install the fine grinding assembly 41 on the longitudinal sliding platform, so that the fine grinding assembly 41 can vertically move up and down along with the longitudinal sliding seat, a small driving motor and a mounting shaft seat are arranged at the bottom of the fine grinding assembly 41, a grinding roller is fixedly arranged on the mounting shaft seat through bolts, in the process of vertical up-and-down movement of the fine grinding assembly 41, the small driving motor drives the mounting shaft seat and the grinding roller to rotate, the tooth surface of the inner gear ring is subjected to high-precision grinding machining, the tooth shape is accurate, the surface roughness is high, the friction loss and noise during operation are reduced, the grinding roller can be disassembled and replaced according to the model of the inner gear ring to be machined, a central mounting frame 11 is fixedly arranged on the upper surface of the inner gear ring fine grinding machining base 1, a chip removal assembly 6 is arranged on the central mounting frame 11, the chip removal assembly 6 comprises a rotating frame 61, an extension rod 62, a chip removal cover 63 and a dust suction pipe 64, the rotating frame 61 is rotatably arranged on the central mounting frame 11, a bevel gear disc is fixedly arranged on the outer surface of the rotating frame 61, a rotating rod is rotatably arranged on the inner side wall of the central mounting frame 11, a driving motor one is fixedly arranged on the outer side wall of the central mounting frame 11 and drives the rotating rod to rotate, a conical gear is fixedly arranged at one end of the rotating rod and drives the bevel gear disc to rotate, the extension rod 62 is fixedly arranged on the upper surface of the rotating frame 61, the output end of the extension rod 62 is fixedly connected with the side surface of the chip removal cover 63, the inner side wall of the chip removal cover 63 is uniformly provided with a through groove, the dust suction pipe 64 is fixedly arranged on the inner side of the central mounting frame 11, the dust suction pipe 64 penetrates through the bottom inner wall of the central mounting frame 11, a corrugated branch pipe 642 is fixedly arranged at the upper end of the dust suction pipe 64, a fan-shaped groove is arranged on one side of the rotating frame 61 and facilitates the movement of the corrugated branch pipe 642, one end of the corrugated branch pipe 642 is fixedly connected with the side surface of the chip removal cover 63, the side surface of the chip removal cover 63 is provided with a through hole matched with the corrugated branch pipe 642, and fixed frames 631 are fixedly arranged on the two side walls of the chip removal cover 63,The two side surfaces of the floating claw 6311 are respectively fixedly installed with elastic limiting washers between the inner side walls of the fixed frame 631. In the embodiment, the central mounting frame 11 mainly serves to install the rotating frame 61, the rotating rod on the side wall of the central mounting frame 11 is driven to rotate by the driving motor one on the outer side wall of the central mounting frame 11, the bevel gear installed on the rotating rod drives the helical gear disc installed on the lower surface of the rotating frame 61 to rotate, thereby rotating the rotating frame 61, and the telescopic rod 62 mainly serves to push the chip removal cover 63 to move, so that it is close to the tooth surface of the inner gear ring. The floating claw 6311 in the fixed frame 631 will adaptively float and turn when the chip removal cover 63 moves to the inner gear ring according to the tooth surface of the inner gear ring in the close area, so as to keep correct engagement with the tooth surface. The specific working mode of the chip removal cover 63 is that first, the telescopic rod 62 pushes the chip removal cover 63 to move, so that the floating claw 6311 in the fixed frame 631 is engaged with the tooth surface, then the rotating frame 61 is driven to rotate clockwise by the driving motor two, and the specific rotation angle needs to be set according to the number of teeth and the diameter of the inner gear ring. For example, the rotating frame 61 is set to rotate clockwise by 6° each time under the driving of the driving motor two, so as to drive the inner gear ring to rotate clockwise by 6°, and the processed part of the tooth surface of the inner gear ring is rotated out, then the telescopic rod 62 is reset to drive the chip removal cover 63 to retreat and cancel the engagement of the floating claw 6311 with the inner gear ring. At this time, the rotating frame 61 is driven to rotate counterclockwise by 6° by the driving motor two, so as to reset the chip removal cover 63. Finally, the telescopic rod 62 pushes the chip removal cover 63 to move again, so that the floating claw 6311 in the fixed frame 631 is engaged with the tooth surface, and the inner gear ring is re-fixed for subsequent processing. Thus, the rotating frame 61 and the telescopic rod 62 need to be repeatedly worked sixty times for the whole inner gear ring processing, but in the actual processing process, considering that the size of the inner gear ring in the wind power gearbox is large, the rotation angle of the rotating frame 61 needs to be set to ensure that the processed part of the tooth surface of the inner gear ring has an overlapping part each time, so as to avoid the problem of missing processing of the tooth surface. The dust suction pipe 64 is mainly connected with the chip removal cover 63 through the corrugated branch pipe 642. When the inner gear ring is processed by grinding, the dust suction pipe 64 sucks away the grinding debris through the fan-shaped dust suction branch pipe 641 and the through groove in the inner side wall of the chip removal cover 63, which can effectively avoid the problem that the debris splashes or accumulates in the middle processing area of the device and affects the processing precision.

[0042] Embodiment two

[0043] Please refer to Figures 1 to 16On the basis of embodiment one, the embodiment further proposes that the one side of the inner tooth ring precision grinding base 1 is provided with an industrial dust suction fan 65, the suction pipe end of the industrial dust suction fan 65 is fixedly installed with a suction pipe 651, the suction pipe 651 penetrates the lower side wall of the inner tooth ring precision grinding base 1, the upper end of the suction pipe 651 is fixedly installed with a filter cover net 652, the filter cover net 652 is a baseball bat type, the top of the filter cover net 652 is a smooth hemispherical metal sheet, the outside of the filter cover net 652 is provided with a debris collecting cylinder 66, the inner surface of the debris collecting cylinder 66 is threadedly connected with the bottom outer surface of the filter cover net 652, the upper inner surface of the debris collecting cylinder 66 is fixedly installed with an upper sealing ring 661, the middle part of the upper sealing ring 661 is provided with a through groove matched with the dust suction pipe 64, the lower part of the debris collecting cylinder 66 is clampedly installed with a debris discharge sealing plug 662, the bottom of the filter cover net 652 is provided with a mounting hole matched with the debris discharge sealing plug 662; in the embodiment, the dust suction pipe 64 is connected with the suction pipe 651 into a group of closed pipes through the debris collecting cylinder 66, the industrial dust suction fan 65 mainly performs dust suction through the suction pipe 651, the debris collecting cylinder 66 and the dust suction pipe 64, the debris generated in the inner tooth ring processing is sucked into the debris collecting cylinder 66 by the dust suction pipe 64, the filter cover net 652 can filter and intercept the debris, so that the debris is accumulated below the debris collecting cylinder 66, the debris can be discharged by pulling out the debris discharge sealing plug 662, the upper sealing ring 661 mainly increases the sealing property of the debris collecting cylinder 66 and the dust suction pipe 64, the debris collecting cylinder 66 is designed to be detachably installed outside the filter cover net 652, so that the filter cover net 652 can be cleaned after the debris collecting cylinder 66 is detached, meanwhile, the filter cover net 652 is designed to be a baseball bat type with a wide top and a narrow bottom, so that the metal debris is dispersed to the outside after falling on the filter cover net 652, thereby reducing the blocking influence on the filter screen on the side of the filter cover net 652.

[0044] Embodiment three

[0045] Please refer to Figures 1 to 16On the basis of embodiment two, the embodiment further proposes that the longitudinal moving assembly 3 is provided with a fine grinding mounting frame 4 on the side of the fine grinding machining base 1 close to the inner gear ring, one end of the fine grinding mounting frame 4 is fixedly provided with a fine grinding assembly 41, the side of the fine grinding assembly 41 close to the chip removal cover 63 is provided with a side protection cover one 42, the side protection cover one 42 and the chip removal cover 63 are both “C” shaped, the inner side walls of the side protection cover one 42 are uniformly provided with through grooves, the bottom of the side protection cover one 42 is fixedly provided with a sealing guide ring 421 matched with the chip removal cover 63, the other side of the fine grinding assembly 41 is provided with a side protection cover two 43, the inner side surfaces of the side protection cover two 43 are uniformly provided with guide groove plates 431, a right-angle groove is formed below the side wall of the guide groove plate 431, the two sides of the fine grinding assembly 41 are respectively provided with limiting sliding grooves matched with the side protection cover one 42 and the side protection cover two 43, and the upper surfaces of the side protection cover one 42 and the side protection cover two 43 are respectively fixedly provided with telescopic spring rods between the lower surface of the fine grinding mounting frame 4.In the embodiment, the fine grinding assembly 41 mainly serves to install the grinding roller. Under the cooperation of the longitudinal moving assembly 3, the fine grinding assembly 41 moves vertically up and down. The small driving motor installed at the bottom of the fine grinding assembly 41 drives the installation shaft seat and the grinding roller to rotate, so as to perform high-precision grinding processing on the tooth surface of the inner ring gear. When the grinding roller at the bottom of the fine grinding assembly 41 descends above the inner ring gear, the side protection cover one 42 and the side protection cover two 43 will be at the lowest position of the limiting sliding groove at the side of the fine grinding assembly 41 under the action of the telescopic spring rod below the fine grinding installation frame 4. At this time, the sealing guide ring 421 below the side protection cover one 42 will be clamped into the inside of the chip removal cover 63, and the side protection cover one 42 will form a complete dust cover together with the chip removal cover 63, which is located outside the grinding roller and has a semi-enclosed shape. The grinding debris generated during the grinding process can be sucked out and collected. The side protection cover two 43 will be above the surface of the inner ring gear, and the right-angle groove of the guide groove plate 431 will press the inner ring gear tightly, so that the grinding process is more stable. As the fine grinding assembly 41 continues to move downward to grind the inner ring gear, the telescopic spring rod will be compressed. At this time, the side protection cover one 42 and the side protection cover two 43 will slide along the limiting sliding groove of the fine grinding assembly 41. The side protection cover one 42 continues to keep the clamping state with the chip removal cover 63, and the guide groove plate 431 inside the side protection cover two 43 also continues to keep the pressing state of the inner ring gear. After the local tooth surface grinding process is completed, the fine grinding installation frame 4 is lifted to the highest point under the cooperation of the longitudinal moving assembly 3, so that the side protection cover one 42 is separated from the chip removal cover 63, and the side protection cover two 43 also cancels the pressing action on the inner ring gear. At this time, the inner ring gear is rotated by a certain angle under the cooperation of the rotating frame 61, the telescopic rod 62 and the chip removal cover 63, and then the rotating frame 61 and the telescopic rod 62 cooperate to reset the chip removal cover 63. The fine grinding assembly 41 repeats the downward grinding process under the cooperation of the fine grinding installation frame 4 and the longitudinal moving assembly 3. Therefore, the chip removal cover 63 has the positioning and calibration effect on the position of the fine grinding assembly 41 in addition to the auxiliary fixing of the inner ring gear, so that the position of the grinding roller at the bottom of the fine grinding assembly 41 is correct, the precision of the grinding process of the inner ring gear is ensured, and the processing precision is improved. The side protection cover one 42 not only shields the grinding debris generated during the grinding process of the grinding roller, but also clamps the chip removal cover 63 to assist in positioning. In addition, the dust suction pipe 64 and the industrial dust suction fan 65 can also suck the debris. The chip removal cover 63 not only presses the inner ring gear through the fixing frame 631, but also shields the outside of the processing area, so that the debris suction area is more concentrated, the debris is more easily sucked, and the debris is prevented from splashing.

[0046] Embodiment four

[0047] Please refer to Figures 1 to 16On the basis of embodiment three, the embodiment also proposes that the inner tooth ring fine grinding base 1 is provided with an inner tooth ring centering installation assembly 5 above the outer side thereof, the inner tooth ring centering installation assembly 5 comprises an installation housing 51 and an inner tooth ring centering installation frame 54, the installation housing 51 is fixedly installed above the outer side of the inner tooth ring fine grinding base 1, a fan-shaped dust suction groove body 55 is fixedly installed inside the side of the installation housing 51 close to the longitudinal movement assembly 3, a chip removal through groove 551 is formed above the fan-shaped dust suction groove body 55, a fan-shaped dust suction branch pipe 641 is fixedly installed on the side wall of the dust suction pipe 64, one end of the fan-shaped dust suction branch pipe 641 is fixedly connected with the side wall of the fan-shaped dust suction groove body 55, a machining table 52 is fixedly installed above the installation housing 51 through bolts, the machining table 52 is in the shape of a horseshoe, the surface of the machining table 52 is flush with the surfaces of the installation housing 51, the rotating frame 61 and the fan-shaped dust suction groove body 55, the middle part of the machining table 52 is provided with a movable groove matched with the rotating frame 61, a chip removal cover 63 is arranged on the upper surface of the fan-shaped dust suction groove body 55, in the embodiment, the installation housing 51 and the machining table 52 cooperate to form a machining platform, the machining table 52 is convenient to disassemble and overhaul, the fan-shaped dust suction groove body 55 is connected with the dust suction pipe 64 through the fan-shaped dust suction branch pipe 641, when the inner tooth ring is subjected to gear grinding, under the cooperation of the industrial dust suction fan 65, the dust suction pipe 64 works to suction the chips splashed from the side surface of the gear grinding roller through the fan-shaped dust suction branch pipe 641 to the suction cover composed of the chip removal cover 63 and the side protection cover one 42, at the same time, the dust suction pipe 64 sucks the fan-shaped dust suction groove body 55 through the corrugated branch pipe 642, so that the chips ground below the gear grinding are sucked out through the chip removal through groove 551, the cleaning strength of the chips is increased, and the influence of the accumulation of the chips on the subsequent machining is avoided.The inner tooth ring centering mount 54 is provided with three groups, the lower surfaces of the three groups of inner tooth ring centering mounts 54 are in contact with the upper surfaces of the installation shell 51 and the machining table 52, the included angle of the two groups of inner tooth ring centering mounts 54 close to the longitudinal moving assembly 3 is 60°, the other group of inner tooth ring centering mounts 54 is arranged on the axis coinciding with the longitudinal moving assembly 3, the inner side surface of the installation shell 51 is fixedly installed with moving rails 53 matched with the positions of the inner tooth ring centering mounts 54, the inside of the moving rail 53 is rotatably installed with a threaded rod, the bottom of the inner tooth ring centering mount 54 is provided with a T-shaped plate slidingly connected with the inner tooth ring centering mount 54, the bottom sidewall of the T-shaped plate is threadedly connected with the outer surface of the threaded rod, the sidewall of the installation shell 51 is provided with a sliding groove matched with the inner tooth ring centering mount 54, the outer side surface of the installation shell 51 is fixedly installed with a driving motor two driving the threaded rod to rotate, the three groups of driving motor twos need to work synchronously, the lower side of the inner tooth ring fine grinding base 1 is provided with a device control box controlling the parallel moving assembly 2, the longitudinal moving assembly 3, the telescopic rod 62, the industrial dust collection fan 65 and all driving motors to work, in this embodiment, the inner tooth ring centering mount 54 mainly plays a role of bearing the inner tooth ring, so that the inner tooth ring has a certain machining height from the machining table 52 after being placed, which facilitates the grinding roller at the bottom of the fine grinding assembly 41 to completely generate grinding effect on the entire tooth surface of the inner tooth ring from top to bottom, and avoids the problem that the lower side of the inner tooth ring tooth surface cannot be machined, under the control of the device control box, the three groups of driving motor twos drive the threaded rod inside the moving rail 53 to rotate, so that the inner tooth ring centering mount 54 moves in centering under the limiting cooperation of the moving rail 53 and the installation shell 51, moves according to the diameter of the inner tooth ring, roughly adjusts the position, so that the inner tooth ring can be placed on the installation platform 541 and inside the centering limiting seat 542, and then the position of the inner tooth ring centering mount 54 will be continuously adjusted, at this time, the inner tooth ring centering mount 54 automatically finely adjusts the position of the inner tooth ring, until the centering limiting seat 542 abuts against the outer wall of the inner tooth ring, at this time, the center of the inner tooth ring coincides with the center of the machining table 52, so as to achieve the purpose of automatically correcting the coaxiality of the inner tooth ring and the machining table 52, and the purpose of unifying the subsequent gear grinding precision of the inner tooth ring.The inner tooth ring centering mounting frame 54 is fixedly installed with a mounting platform 541 close to one end of the rotating frame 61, and the upper portion of the inner tooth ring centering mounting frame 54 is fixedly installed with a centering limiting seat 542. The inner portion of the mounting platform 541 is obliquely rotatably installed with an oblique roller mounting shaft 5412, and the outer surface of the oblique roller mounting shaft 5412 is fixedly installed with an oblique roller 5411. A limiting cover plate matched with the oblique roller 5411 is detachably installed on the upper portion of the mounting platform 541. A rotating limiting tooth 5414 is movably installed on one side of the oblique roller mounting shaft 5412, and a limiting tab is arranged on one side of the rotating limiting tooth 5414 and fixedly installed on the side wall of the oblique roller mounting shaft 5412. A locking limiting ring 5413 matched with the oblique roller mounting shaft 5412 is fixedly installed on the inner side wall of the mounting platform 541, and a limiting tooth groove matched with the rotating limiting tooth 5414 is arranged in the locking limiting ring 5413. In this embodiment, in addition to automatically adjusting the coaxiality of the inner tooth ring and the machining table 52, the inner tooth ring centering mounting frame 54 also has the function of lifting the inner tooth ring to be higher than the machining table 52, so that the tooth surface of the inner tooth ring is easily and completely ground by the gear grinding roller. The mounting platform 541 mainly plays a role in bearing the inner tooth ring. The oblique rollers 5411 are obliquely distributed, which facilitates the rotation of the inner tooth ring driven by the cooperation of the rotating frame 61 and the telescopic rod 62 and the chip removal cover 63 to replace the gear grinding area, reduces the friction, and at the same time, the oblique roller mounting shaft 5412 is limited to rotate only in one direction by the cooperation of the rotating limiting tooth 5414 and the locking limiting ring 5413 through the ratchet principle. In cooperation with the chip removal cover 63, the inner tooth ring is rotated in the limited direction, so that the rotation direction of the inner tooth ring is further limited, the error of the rotation direction of the inner tooth ring is avoided, the stability of the process of replacing the gear grinding area of the inner tooth ring is increased, the centering limiting seat 542 limits the inner tooth ring, so that the inner tooth ring always remains coaxial with the machining table 52, and the ball 5421 reduces the friction when the inner tooth ring rotates.

[0048] Example five

[0049] Please refer to Figure 17 On the basis of example four, the embodiment also proposes a processing technology for the inner tooth ring of a wind power gear box, which comprises the following steps:

[0050] Step one, place the inner tooth ring; first, the inner tooth ring centering mounting frame 54 is moved in the centering manner under the limiting cooperation of the moving guide rail 53 and the mounting shell 51, the position of the inner tooth ring is adjusted, the inner tooth ring is placed on the mounting platform 541 and inside the centering limiting seat 542, after the inner tooth ring is placed, the position of the inner tooth ring centering mounting frame 54 is continuously adjusted, at this time, the inner tooth ring centering mounting frame 54 automatically finely adjusts the position of the inner tooth ring, until the centering limiting seat 542 abuts against the outer wall of the inner tooth ring, at this time, the center of the inner tooth ring is coincided with the center of the machining table 52, and the inner tooth ring is coaxially placed with the machining table 52;

[0051] Step two, determine the first processing area; telescopic rod 62 pushes the chip removal cover 63 to move, so that it is close to the tooth surface of the inner gear ring, the floating claw 6311 in the fixed frame 631 will adaptively float and turn when the chip removal cover 63 moves to the inner gear ring, and correctly engage with the tooth surface, the tooth surface inside the chip removal cover 63 is determined as the first processing area;

[0052] Step three, grinding processing, parallel moving assembly 2 adjusts the distance between longitudinal moving assembly 3 and the inner gear ring according to the diameter of the inner gear ring to be processed, longitudinal moving assembly 3 makes fine grinding assembly 41 vertically descend through fine grinding mounting bracket 4, small driving motor and mounting shaft seat are installed at the bottom of fine grinding assembly 41, and grinding roller is fixedly installed on the mounting shaft seat through bolts, when the grinding roller at the bottom of fine grinding assembly 41 descends above the inner gear ring, side guard cover one 42 and side guard cover two 43 are at the lowest position of the limiting sliding groove at the side of fine grinding assembly 41, at this time, sealing guide ring 421 below side guard cover one 42 will be clamped into the inside of chip removal cover 63, side guard cover one 42 and chip removal cover 63 form a complete dust cover located outside the grinding roller in a semi-enclosed form, side guard cover two 43 will be above the surface of the inner gear ring, the right-angle groove of guide groove plate 431 will press the inner gear ring, then fine grinding assembly 41 continues to move downward, small driving motor drives mounting shaft seat and grinding roller to rotate, and high-precision grinding processing is carried out on the tooth surface of the inner gear ring, industrial dust collection fan 65 starts to work, under the cooperation of dust collection pipe 64 and fan-shaped dust collection branch pipe 641, the adsorption cover composed of chip removal cover 63 and side guard cover one 42 sucks the debris scattered from the side of the grinding roller, and through dust collection pipe 64 and corrugated branch pipe 642, fan-shaped dust collection groove body 55 is sucked, so that the debris ground below the grinding roller is sucked out through chip removal groove 551;

[0053] Step four, after the local tooth surface grinding is completed, the precision grinding mounting frame 4 is lifted to the highest point by the cooperation of the longitudinal movement assembly 3, the side guard cover one 42 is separated from the chip removal cover 63, the side guard cover two 43 cancels the pressing effect on the inner gear ring, at this time the inner gear ring is driven to rotate clockwise by the cooperation of the rotating frame 61, the telescopic rod 62 and the chip removal cover 63, the inner gear ring is rotated to a certain angle, the tooth surface of the inner gear ring is rotated out, then the telescopic rod 62 is reset to drive the chip removal cover 63 to retreat and cancel the clamping of the floating claw 6311 on the inner gear ring, then the rotating frame 61 rotates counterclockwise to the same angle to reset the chip removal cover 63, finally the telescopic rod 62 pushes the chip removal cover 63 to move again to make the floating claw 6311 in the fixed frame 631 re-clamp the tooth surface, the precision grinding assembly 41 is repeatedly lowered by the cooperation of the precision grinding mounting frame 4 and the longitudinal movement assembly 3, the sealing guide ring 421 below the side guard cover one 42 is clamped into the inside of the chip removal cover 63 again, the right-angle groove of the guide groove plate 431 presses the inner gear ring again, finally the precision grinding assembly 41 is moved downward again to make the grinding roller continue to grind the inner gear ring, the industrial dust collection fan 65 works again to suck the grinding debris through the dust collection pipe 64, and the processing area is replaced repeatedly until the grinding of the inner gear ring is completed.

[0054] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A processing device for an internal gear ring of a wind turbine gearbox, comprising an internal gear ring precision grinding processing base (1), a parallel moving component (2) disposed on one side of the internal gear ring precision grinding processing base (1), a longitudinal moving component (3) disposed above the parallel moving component (2), and a central mounting bracket (11) fixedly installed in the middle of the upper surface of the internal gear ring precision grinding processing base (1), characterized in that: A chip removal assembly (6) is provided in the middle of the central mounting frame (11). The chip removal assembly (6) includes a rotating frame (61), a telescopic rod (62), a chip removal hood (63), and a dust suction pipe (64). A fine grinding mounting frame (4) is provided on the side of the longitudinal moving assembly (3) near the internal gear ring fine grinding base (1). A fine grinding assembly (41) is fixedly installed at one end of the fine grinding mounting frame (4). A side protective cover (42) is provided on the side of the fine grinding assembly (41) near the chip removal hood (63). An internal gear ring centering mounting assembly (5) is provided on the upper outer side of the internal gear ring fine grinding base (1). The internal gear ring centering mounting assembly (5) includes a mounting... The housing (51) and the internal gear ring are aligned and mounted (54); the rotating frame (61) is rotatably mounted in the middle of the central mounting frame (11), the telescopic rod (62) is fixedly mounted on the upper surface of the rotating frame (61), the output end of the telescopic rod (62) is fixedly connected to the side surface of the chip removal hood (63), the inner side wall of the chip removal hood (63) is evenly provided with through grooves, the dust suction pipe (64) is fixedly mounted on one side of the interior of the central mounting frame (11), the dust suction pipe (64) penetrates the bottom inner wall of the central mounting frame (11), the upper end of the dust suction pipe (64) is fixedly mounted with a corrugated branch pipe (642), and a fan-shaped groove is provided on one side of the rotating frame (61) to facilitate the corrugation. The corrugated branch pipe (642) is movable, and one end of the corrugated branch pipe (642) is fixedly connected to the side surface of the chip discharge hood (63). The side surface of the chip discharge hood (63) is provided with a through hole that matches the corrugated branch pipe (642). Fixing brackets (631) are symmetrically fixedly installed on both sides of the chip discharge hood (63). A floating claw (6311) is rotatably installed inside one end of the fixing bracket (631). Elastic limiting gaskets are fixedly installed between the two sides of the floating claw (6311) and the inner side wall of the fixing bracket (631). Both the side protective cover (42) and the chip discharge hood (63) are "C" shaped. The inner side wall of the side protective cover (42) is uniformly... A through groove is provided. A sealing guide ring (421) adapted to the chip removal cover (63) is fixedly installed at the bottom of the first side guard (42). A second side guard (43) is provided on the other side of the fine grinding assembly (41). A guide groove plate (431) is evenly distributed on the inner surface of the second side guard (43). A right angle groove is opened below the side wall of the guide groove plate (431). Limiting sliding grooves adapted to the first side guard (42) and the second side guard (43) are respectively provided on both sides of the fine grinding assembly (41). A telescopic spring rod is fixedly installed between the upper surface of the first side guard (42) and the second side guard (43) and the lower surface of the fine grinding mounting frame (4).

2. The processing device for the internal gear ring of a wind turbine gearbox according to claim 1, characterized in that: An industrial vacuum cleaner (65) is provided on one side of the internal gear ring precision grinding base (1). A suction pipe (651) is fixedly installed at the suction pipe end of the industrial vacuum cleaner (65). The suction pipe (651) passes through the lower side wall of the internal gear ring precision grinding base (1). A filter screen (652) is fixedly installed at the upper end of the suction pipe (651). A debris collection cylinder (66) is provided outside the filter screen (652). The inner surface of the filter screen (652) is threadedly connected to the bottom outer surface of the filter screen (652). An upper sealing ring (661) is fixedly installed above the inner surface of the debris collection cylinder (66). A through groove adapted to the dust suction pipe (64) is provided in the middle of the upper sealing ring (661). A chip discharge sealing plug (662) is snapped on the bottom of the debris collection cylinder (66). An assembly hole adapted to the chip discharge sealing plug (662) is provided at the bottom of the filter screen (652).

3. The processing device for the internal gear ring of a wind turbine gearbox according to claim 2, characterized in that: The mounting housing (51) is fixedly installed on the outer side above the internal gear ring precision grinding base (1). A fan-shaped dust collection groove (55) is fixedly installed inside the mounting housing (51) on the side near the longitudinal moving component (3). A chip discharge groove (551) is opened above the fan-shaped dust collection groove (55). A fan-shaped dust collection branch pipe (641) is fixedly installed on the side wall of the dust collection pipe (64). One end of the fan-shaped dust collection branch pipe (641) is fixedly connected to the side wall of the fan-shaped dust collection groove (55). A processing table (52) is fixedly installed on the top of the mounting housing (51) by bolts. The processing table (52) is horseshoe-shaped.

4. The processing device for the internal gear ring of a wind turbine gearbox according to claim 3, characterized in that: The internal gear ring alignment mounting bracket (54) is provided in three sets. The lower surfaces of the three sets of internal gear ring alignment mounting brackets (54) are in contact with the upper surfaces of the mounting housing (51) and the processing table (52). The two sets of internal gear ring alignment mounting brackets (54) on the side closer to the longitudinal moving component (3) have an included angle of 60°. The other set of internal gear ring alignment mounting brackets (54) is set on the axis that coincides with the longitudinal moving component (3).

5. The processing device for the internal gear ring of a wind turbine gearbox according to claim 4, characterized in that: The inner surface of the mounting housing (51) is fixedly mounted with a movable guide rail (53) that is adapted to the position of the internal gear ring centering mounting bracket (54). A threaded rod is rotatably mounted inside the movable guide rail (53). The bottom of the internal gear ring centering mounting bracket (54) is provided with a T-shaped plate that is slidably connected to the internal gear ring centering mounting bracket (54). The bottom side wall of the T-shaped plate is threadedly connected to the outer surface of the threaded rod. The side wall of the mounting housing (51) is provided with a sliding groove that is adapted to the internal gear ring centering mounting bracket (54).

6. The processing device for the internal gear ring of a wind turbine gearbox according to claim 5, characterized in that: An installation platform (541) is fixedly installed at one end of the internal gear ring alignment mounting bracket (54) near the rotating frame (61). An alignment limit seat (542) is fixedly installed above the internal gear ring alignment mounting bracket (54). An inclined roller mounting shaft (5412) is obliquely rotatably mounted inside the installation platform (541). An inclined roller (5411) is fixedly mounted on the outer surface of the inclined roller mounting shaft (5412). A limit seat adapted to the inclined roller (5411) is detachably installed above the installation platform (541). The cover plate has a rotating limiting tooth (5414) movably mounted on one side of the inclined roller mounting shaft (5412). A limiting piece is provided on one side of the rotating limiting tooth (5414). The limiting piece is fixedly mounted on the side wall of the inclined roller mounting shaft (5412). A locking limiting ring (5413) adapted to the inclined roller mounting shaft (5412) is fixedly mounted on the inner side wall of the mounting platform (541). The locking limiting ring (5413) has a limiting tooth groove adapted to the rotating limiting tooth (5414) inside.

7. A machining process for an internal gear ring in a wind turbine gearbox, implemented by the machining apparatus for an internal gear ring in a wind turbine gearbox according to claim 6, characterized in that: Includes the following steps: Step 1, place the internal gear ring; First, the internal gear ring centering mounting bracket (54) moves in the center under the limiting cooperation of the moving guide rail (53) and the mounting housing (51) to adjust the position of the internal gear ring so that the internal gear ring is placed on the mounting platform (541) and inside the centering limit seat (542). After the internal gear ring is placed, continue to adjust the position of the internal gear ring centering mounting bracket (54). At this time, the internal gear ring centering mounting bracket (54) automatically fine-tunes the position of the internal gear ring until the centering limit seat (542) abuts against the outer wall of the internal gear ring. At this time, the center of the internal gear ring coincides with the center of the processing table (52), realizing the coaxial placement of the internal gear ring and the processing table (52); Step 2: Determine the first processing area; The telescopic rod (62) pushes the chip removal cover (63) to move, so that it is close to the tooth surface of the inner gear ring. When the chip removal cover (63) moves towards the inner gear ring, the floating claw (6311) inside the fixed frame (631) will adaptively float and turn according to the tooth surface of the gear ring in the area it is close to, and correctly engage with the tooth surface. The tooth surface inside the chip removal cover (63) is determined as the first processing area. Step 3: Grinding is performed. The parallel moving component (2) adjusts the distance between the longitudinal moving component (3) and the fine grinding base (1) of the internal gear ring according to the diameter of the internal gear ring to be processed. The longitudinal moving component (3) moves the fine grinding component (41) vertically downward through the fine grinding mounting bracket (4). A small drive motor and mounting shaft are installed at the bottom of the fine grinding component (41). Grinding rollers are fixedly installed on the mounting shaft by bolts. When the grinding rollers at the bottom of the fine grinding component (41) descend above the internal gear ring, the side guard 1 (42) and the side guard 2 (43) are at the lowest point of the limiting slide groove on the side of the fine grinding component (41). At this time, the sealing guide ring (421) under the side guard 1 (42) will be inserted into the inside of the chip discharge cover (63). The side guard 1 (42) and the chip discharge cover (63) are assembled. A complete dust collection hood is formed, located on the outside of the grinding roller, in a semi-enclosed form. The second side protective cover (43) will be above the surface of the inner gear ring. The right-angle groove of the guide plate (431) presses against the inner gear ring. Then the fine grinding assembly (41) continues to move downward. The small drive motor drives the mounting shaft seat and the grinding roller to rotate, and performs high-precision grinding on the tooth surface of the inner gear ring. The industrial dust collection fan (65) starts working. With the cooperation of the dust collection pipe (64) and the fan-shaped dust collection branch pipe (641), the dust is sucked away by the adsorption hood composed of the chip discharge hood (63) and the first side protective cover (42). The dust is also sucked by the fan-shaped dust collection trough (55) through the dust collection pipe (64) and the corrugated branch pipe (642), so that the grinding chips below the grinding process are sucked out through the chip discharge channel (551). Step 4: Change the processing area. After the local tooth surface grinding is completed, the fine grinding mounting frame (4) is raised to the highest point with the cooperation of the longitudinal moving component (3), so that the side guard 1 (42) is disengaged from the chip removal cover (63), and the side guard 2 (43) cancels the clamping effect on the internal gear ring. At this time, the internal gear ring is rotated clockwise by the rotating frame (61), the telescopic rod (62), and the chip removal cover (63) to rotate out the already processed part of the tooth surface of the internal gear ring. Then the telescopic rod (62) resets and drives the chip removal cover (63) to move backward to cancel the engagement of the floating claw (6311) on the internal gear ring. Then the rotating frame (61) rotates counterclockwise by the same angle to reset the chip removal cover (63). Finally, the telescopic rod (62) resets and drives the chip removal cover (63) to move backward to cancel the engagement of the floating claw (6311) on the internal gear ring. Then the rotating frame (61) rotates counterclockwise by the same angle to reset the chip removal cover (63). The chip removal hood (63) will move again, causing the floating claw (6311) inside the fixed frame (631) to re-engage with the tooth surface. The fine grinding assembly (41) moves down repeatedly with the cooperation of the fine grinding mounting frame (4) and the longitudinal moving assembly (3). The sealing guide ring (421) under the side protective cover (42) is once again engaged inside the chip removal hood (63). The right-angle groove of the guide plate (431) presses the inner tooth ring again. Finally, the fine grinding assembly (41) moves down again, causing the grinding roller to continue grinding the inner tooth ring. The industrial dust collector (65) works again, using the dust collection pipe (64) to remove the debris generated by the grinding. The processing area is changed repeatedly until the grinding of the entire tooth surface of the inner tooth ring is completed.

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