CN109909408B - Rolling device for double-channel variable-pitch bearing ring - Google Patents
Rolling device for double-channel variable-pitch bearing ring Download PDFInfo
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- CN109909408B CN109909408B CN201910291719.8A CN201910291719A CN109909408B CN 109909408 B CN109909408 B CN 109909408B CN 201910291719 A CN201910291719 A CN 201910291719A CN 109909408 B CN109909408 B CN 109909408B
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- 238000005096 rolling process Methods 0.000 title claims abstract description 100
- 238000003825 pressing Methods 0.000 claims abstract description 40
- 230000006835 compression Effects 0.000 claims abstract description 22
- 238000007906 compression Methods 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims description 15
- 239000003638 chemical reducing agent Substances 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 2
- 238000005242 forging Methods 0.000 abstract description 25
- 230000007547 defect Effects 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000003754 machining Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The invention belongs to the technical field of rolling of double-channel variable-pitch bearing rings, and discloses a rolling device of a double-channel variable-pitch bearing ring, wherein a ring rolling die is sleeved on a mandrel and is pressed and fixed by a pressing part of a pressing arm; the inner cylinder is hollow and cylindrical, and an outer wall of the inner cylinder is provided with an inner cylinder external thread through a whole body; the limiting bottom plate is fixedly arranged at the bottom of the inner cylinder and is fixedly connected with the inner cylinder into a whole; the die body is provided with a through hole in the center, and the inner wall of the through hole is provided with internal threads; the limiting convex ring is provided with a through hole at the center, and the inner wall of the through hole is provided with a limiting convex ring internal thread through a whole body; the fixed compression cover is fixedly arranged at the upper part of the limiting convex ring. The rolling device for the double-channel variable-pitch bearing ring greatly improves the efficiency of processing the variable-pitch bearing ring channel, reduces the waste of annular ring forging materials, greatly reduces the stress defect of the variable-pitch bearing ring, and prolongs the service life of the variable-pitch bearing ring.
Description
Technical Field
The invention belongs to the technical field of rolling of double-channel variable-pitch bearing rings, and particularly relates to a rolling device of a double-channel variable-pitch bearing ring.
Background
The variable pitch bearing is fixedly connected with the variable pitch driving device as a key part of the wind turbine, and the variable pitch bearing and the variable pitch driving device are used for changing the angle of the blade under the combined action, so that the control of the output power of the blade and the guarantee of the safety of the blade are realized. Because the variable pitch bearing needs to bear alternating load in three directions and high-frequency vibration of the blade in the working process, the working environment is bad, and therefore, the service life of the variable pitch bearing is critical. The variable-pitch bearing mainly comprises an outer ring, an inner ring, a ferrule and rollers, however, the ferrule of the variable-pitch bearing is a core component of the bearing, so that the maintenance of the durability of the ferrule of the variable-pitch bearing is a main technical difficulty.
In the prior art, the processing process of the ring of the pitch bearing mainly comprises the steps of processing a ring forging into a ring shape, and then, arranging a channel matched with the bearing inner ring and the roller on the ring-shaped ring forging. The processing of the inner channel of the ring-shaped forging of the ferrule is generally processed by adopting a turning process, and the processing mode mainly has the following problems: 1. a great amount of material is wasted in the process of turning the channel; 2. the ferrule channel is turned, so that more stress defects exist in the ferrule channel; 3. the machining efficiency is low due to the fact that the machining of the ferrule channel consumes man-hours; the inventor develops a rolling device for a double-channel variable-pitch bearing ring based on the defects in the prior art, and can well solve the problems in the prior art.
Disclosure of Invention
The invention aims to solve the technical problems, and provides a rolling device for a double-channel variable-pitch bearing ring, which has simple, scientific and reasonable structural design, can solve the problems of waste of material and more stress defects of the ring channel processed by adopting a turning mode, and also solves the problems of labor hour consumption and low processing efficiency of the turning of the ring channel. The invention designs a die for processing a variable-pitch bearing ferrule channel, which can be disassembled and assembled and is suitable for rolling processing of ferrule channels of any types under the cooperation of a ring rolling machine. When the die is used for processing the ferrule channel, the die is arranged on a mandrel of the ring rolling machine, and the ring rolling machine is used for rolling the ferrule channel.
The technical scheme adopted by the invention is as follows: a rolling device of a double-channel variable-pitch bearing ring comprises a ring rolling machine, a clamping arm, a driving roller, a mandrel and an arm guiding roller; the clamping arm is fixedly arranged at the front side and the rear side of the driving roller of the ring rolling machine, the clamping arm is arc-shaped, and the arm guide roller is fixedly arranged at the end part of the right side of the clamping arm; the driving roller is fixedly arranged at the center of the clamping arm and is vertically and fixedly connected with a speed reducer and a driving motor of the ring rolling machine; the mandrel is fixedly arranged at the right side of the driving roller, and the mandrel and the driving roller are symmetrically arranged left and right; the pressing arm is fixedly arranged at the left side of the ring rolling machine and fixedly connected with the sliding frame of the ring rolling machine, and the upper part of the pressing arm is fixedly provided with a pressing part; the axial conical roller is fixedly arranged at the right side of the ring rolling machine and freely slides left and right on the frame of the ring rolling machine; the ferrule rolling die is sleeved on the mandrel and is pressed and fixed by a pressing part of the pressing arm; the ferrule rolling die comprises an inner cylinder, wherein the inner cylinder is hollow and cylindrical, and an outer wall of the inner cylinder is provided with an inner cylinder external thread through a whole body; the limiting bottom plate is fixedly arranged at the bottom of the inner cylinder and is fixedly connected with the inner cylinder into a whole; the die body is provided with a through hole in the center, an inner thread is arranged on the inner wall of the through hole, and the die body is screwed on the inner barrel through the outer thread of the inner barrel; the limiting convex ring is provided with a through hole in the center, the inner wall of the through hole is provided with a limiting convex ring internal thread in a whole body, and the limiting convex ring is sleeved on the upper part of the die body through the internal thread of the through hole in a screwing way; the fixed compression cover is fixedly arranged at the upper part of the limiting convex ring; two tightening clamping grooves are fixedly arranged, one tightening clamping groove is fixedly arranged at the middle position of the upper part of the fixed compression cover, and the other tightening clamping groove is fixedly arranged at the middle position of the bottom of the limiting convex ring; the tightening clamping grooves are symmetrically arranged at the front and back positions of the bottom of the limiting convex ring.
The pressing arm and the mandrel are fixedly arranged on a sliding frame of the ring rolling machine, and a distance for adjusting the contact interval between the driving roller and the mandrel is arranged between the pressing arm and the mandrel; the compressing part of the compressing arm is correspondingly matched with the mandrel, and the compressing part is hollow cylinder-shaped.
The pressing arm is driven by a hydraulic cylinder of the ring rolling machine to lift or descend up and down at the upper position of the mandrel.
The upper part of the limiting bottom plate is provided with an outward inclined surface, and the bottom surface of the limiting convex ring is provided with an outward inclined surface.
The die body comprises a cylinder body, the cylinder body is a hollow cylinder body, an upper column-shaped bulge is fixedly arranged at the upper position of the surface of the cylinder body, a lower column-shaped bulge is fixedly arranged at the lower position of the surface of the cylinder body, the upper column-shaped bulge and the lower column-shaped bulge are fixedly arranged around the circumference of the cylinder body, and the upper column-shaped bulge and the lower column-shaped bulge are vertically arranged in parallel.
The limiting convex ring is matched with the external thread of the inner cylinder through the internal thread of the limiting convex ring through hole on the inner cylinder, so that the vertical position on the inner cylinder is adjusted.
The fixed compression cover comprises an annular boss, the annular boss is fixedly arranged at the upper position of the tightening bolt, and the annular boss and the tightening bolt are fixedly connected into a whole; the screw thread is fixed to be set up in the surface of tightening the bolt, and the fixed intermediate position that sets up at the annular boss of fixed clamp cover of tightening the draw-in groove, the draw-in groove of tightening is in the front and back position symmetry setting of annular boss.
The rolling device of the double-channel variable-pitch bearing ring is used in the following process: firstly, the distance between the mandrel and the driving roller is adjusted through the mandrel of the ring rolling machine and the sliding frame of the pressing arm, so that a high Wen Taojuan forging to be rolled can be closely placed between the driving roller and the mandrel, and at the moment, the ferrule forging is closely contacted with the die body of the ferrule rolling die; simultaneously, the position of the axial conical roller is adjusted to enable the axial conical roller to clamp the right part of the ferrule forging, and the axial conical roller plays a role in supporting the ferrule forging at the moment; then, starting a hydraulic cylinder of the clamping arm so that the clamping arm tightly clamps the ferrule forging, and simultaneously enabling an arm clamping guide roller of the clamping arm to tightly contact with the outer wall of the ferrule forging; at the moment, a motor and a speed reducer of a driving roller of the ring rolling machine are started to enable the driving roller to rotate clockwise, and a driving motor of a mandrel is started to enable the mandrel to rotate anticlockwise, so that upper column type bulges and lower column type bulges of a ferrule rolling die contact with the inner side surface of a ferrule of the variable pitch bearing to form the ferrule shape required by the variable pitch bearing through the combined action of a clamping arm, the driving roller, the mandrel, a pressing arm and an axial conical roller; the process is the using process of the rolling device of the double-channel variable-pitch bearing ring.
The method for installing the ferrule rolling die of the rolling device for the double-channel variable-pitch bearing ferrule comprises the following steps: step one, mounting a die body: firstly, a limiting bottom plate and an inner cylinder are fixedly connected into an integrated structure, then a through hole of a die body is aligned with the inner cylinder, and the die body is screwed to the upper part of the limiting bottom plate by utilizing the engagement screwing of the internal thread of the through hole of the die body and the external thread of the inner cylinder; step two, mounting a limiting convex ring: after the die body in the first step is installed, aligning the through hole of the limiting convex ring with the inner cylinder, and screwing the limiting convex ring until the limiting convex ring is in close contact with the die body by utilizing the engagement screwing of the inner thread of the limiting convex ring in the through hole of the limiting convex ring and the outer thread of the inner cylinder; step three, mounting a fixed compression cover: after the limiting convex ring in the second step is installed, the tightening bolt of the fixed compression cover is aligned to the central through hole at the upper part of the limiting convex ring, then the tightening clamping groove on the annular boss is clamped by a wrench to conduct screwing action, and the limiting convex ring is fixed firmly by means of meshing screwing of the threads on the tightening bolt and the internal threads of the limiting convex ring in the limiting convex ring through hole.
The clamping arms are fixedly arranged at the front side and the rear side of the driving roller of the ring rolling machine, the clamping arms are arc-shaped, and the clamping arm guide rollers are fixedly arranged at the right end parts of the clamping arms; the main purpose of the arrangement is to fix the front and rear positions of the high Wen Taojuan forging piece of the variable pitch bearing through the arrangement of the clamping arm, so as to prevent the variable pitch bearing ring forging piece from shifting; so as not to influence the processing precision of the variable-pitch bearing ring.
The driving roller is fixedly arranged at the center of the clamping arm and is vertically and fixedly connected with a speed reducer and a driving motor of the ring rolling machine; the mandrel is fixedly arranged at the right side of the driving roller, and the mandrel and the driving roller are symmetrically arranged left and right; the main purpose of the arrangement is to roll the pitch bearing collar under the rotation of the driving roller and the mandrel in opposite directions through the arrangement of the driving roller and the mandrel; therefore, the material saving of the ring forging is realized, and the rolling processing efficiency of the variable-pitch bearing ring is improved.
The pressing arm is fixedly arranged at the left side of the ring rolling machine and fixedly connected with the sliding frame of the ring rolling machine, and the upper part of the pressing arm is fixedly provided with a pressing part; the main purpose that sets up like this is in order to fix the lasso rolling mould on the dabber, prevents the axial float of lasso forging when rolling the lasso of pitch-variable bearing, from improving the machining precision to the pitch-variable bearing.
The ferrule rolling die is sleeved on the mandrel and is pressed and fixed by a pressing part of the pressing arm; the ring rolling die is a key component for processing the variable-pitch bearing ring, and the inner side surface of the ring forging piece is of the same structure under the combined action of the clamping arm, the driving roller, the mandrel, the pressing arm and the axial conical roller.
The inner cylinder is hollow and cylindrical, and an outer wall of the inner cylinder is provided with an inner cylinder external thread through a whole body; the main purpose of setting like this is in order to realize the adjustment of the upper and lower position of mould body and spacing bulge loop in the inner tube, improves the processing of rolling to the variable pitch bearing ring forging of co-altitude, has improved the adaptability to the variable pitch bearing ring forging of co-altitude.
The limiting bottom plate is fixedly arranged at the bottom of the inner cylinder, and is fixedly connected with the inner cylinder into a whole; the main purpose of the arrangement is to play a role in limiting the position of the die body on one hand, and improve the rolling machining precision of the variable-pitch bearing ring forging; on the other hand, the stability of the ferrule rolling die can be improved, and the upward and downward movement of the ferrule rolling die in the axial direction can be reduced.
The limiting convex ring is provided with a through hole in the center, the inner wall of the through hole is provided with a limiting convex ring internal thread in a whole body, and the limiting convex ring is sleeved on the upper part of the die body through the internal thread of the through hole in a screwing way; the main purpose of the arrangement is to utilize the free adjustment of the upper and lower positions of the limit convex ring inner threads of the limit convex ring in the inner cylinder so as to adjust the height of the limit convex ring according to the variable pitch bearing rings with different heights.
The die body is manufactured in advance according to design parameters of the ferrule, and can be freely detached from the inner cylinder, so that the die body with different shapes is suitable for installation.
The fixed compression cover is fixedly arranged at the upper part of the limiting convex ring; the main objective that sets up like this can be fixed firm with spacing bulge loop through the setting of fixed lid that compresses tightly to finally fix firm with the mould body, improve the stability of mould body, thereby improve the rolling precision of processing variable pitch bearing lasso, improve the product quality of lasso.
The two tightening clamping grooves are fixedly arranged, one tightening clamping groove is fixedly arranged at the middle position of the upper part of the fixed compression cover, and the other tightening clamping groove is fixedly arranged at the middle position of the bottom of the limiting convex ring; the main purpose of the arrangement is to screw the fixed compression cover on the limit convex ring by the tightening clamping groove by the tightening wrench; the labor intensity of screwing the fixed compression cover is reduced.
The die body comprises a cylinder body, the cylinder body is a hollow cylinder, an upper column-shaped bulge is fixedly arranged at the upper part of the surface of the cylinder body, a lower column-shaped bulge is fixedly arranged at the lower part of the surface of the cylinder body, the upper column-shaped bulge and the lower column-shaped bulge are fixedly arranged around the circumference of the cylinder body, and the upper column-shaped bulge and the lower column-shaped bulge are vertically arranged in parallel; the main purpose of setting like this is in order to make the mould body can freely dismantle the mould body of change different kinds, has improved the application scope of lasso rolling mould.
The limiting convex ring is matched with the external thread of the inner cylinder through the internal thread of the limiting convex ring through hole on the inner cylinder, so that the vertical position on the inner cylinder is adjusted; the main purpose of the arrangement is that the rolling processing of the variable-pitch bearing rings with different heights can be suitable through the adjustment of the position of the limiting convex ring.
The upper surface of the limiting bottom plate is an outward inclined surface, and the bottom surface of the limiting convex ring is an outward inclined surface; the main purpose of the arrangement is to improve the quick demoulding of the pitch bearing ring after the pitch bearing ring is rolled.
The ring rolling machine is mechanical equipment which is mature and commonly used in the prior art, the driving power of the ring rolling machine is realized through a motor, and meanwhile, the rolling power of the driving roller is improved by utilizing a speed reducer; the hydraulic control system of the ring rolling machine is also a common control system and is a technology which can be obtained by a person skilled in the art through consulting related data and technical literature.
The invention has the beneficial effects that: the technical scheme provides the rolling device for the double-channel variable-pitch bearing ring, which has simple, scientific and reasonable structural design, can solve the problems of waste of material and more stress defects of the ring channel processed by adopting a turning mode, and also solves the problems of labor hour consumption and low processing efficiency of the turning of the ring channel; the efficiency of processing the variable-pitch bearing ring channel is greatly improved, the waste of annular ring forging materials is reduced, the stress defect of the variable-pitch bearing ring is greatly reduced, and the service life of the variable-pitch bearing ring is prolonged.
Drawings
FIG. 1 is a schematic view of a ring rolling machine according to the present invention;
FIG. 2 is a schematic view of a ferrule rolling die according to the present invention;
the marks in the figure: 1. the ring rolling machine comprises a ring rolling machine body 2, a clamping arm 3, a driving roller 4, a mandrel 5, an arm guiding roller 6, a compressing arm 7 and a compressing part, 8, axial taper rollers, 9, a ferrule rolling die, 901, an inner cylinder, 902, an inner cylinder external thread, 903, a limiting bottom plate, 904 and a die body, 9041, a cylinder body, 9042, an upper column type bulge, 9043, a lower column type bulge, 905, a limiting convex ring, 906, a limiting convex ring internal thread, 907, a fixed compression cover, 9071, an annular boss, 9072, a tightening bolt, 9073, threads, 10 and a tightening clamping groove.
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to the drawings.
As shown in the figure, the technical scheme adopted by the invention is as follows: a rolling device of a double-channel variable-pitch bearing ring comprises a ring rolling machine 1, a clamping arm 2, a driving roller 3, a mandrel 4 and an arm guide roller 5; the clamping arm 2 is fixedly arranged at the front side and the rear side of the driving roller 3 of the ring rolling machine 1, the clamping arm 2 is arc-shaped, and the arm guide roller 5 is fixedly arranged at the end part of the right side of the clamping arm 2; the driving roller 3 is fixedly arranged at the center of the clamping arm 2, and the driving roller 3 is vertically and fixedly connected with a speed reducer and a driving motor of the ring rolling machine 1; the mandrel 4 is fixedly arranged at the right side of the driving roller 3, and the mandrel 4 and the driving roller 4 are symmetrically arranged left and right; the pressing arm 6 is fixedly arranged at the left side of the ring rolling machine 1, the pressing arm 6 is fixedly connected with a sliding frame of the ring rolling machine 1, and a pressing part 7 is fixedly arranged at the upper part of the pressing arm 6; the axial conical roller 8 is fixedly arranged at the right side of the ring rolling machine 1, and the axial conical roller 8 freely slides left and right on a frame of the ring rolling machine 1; the ferrule rolling die 9 is sleeved on the mandrel 4 and is pressed and fixed by a pressing part 7 of the pressing arm 6; the ferrule rolling die 9 comprises an inner cylinder 901, wherein the inner cylinder 901 is hollow and cylindrical, and an outer cylinder external thread 902 is arranged on the outer wall of the inner cylinder 901 in a whole; the limiting bottom plate 903 is fixedly arranged at the bottom of the inner cylinder 901, and the limiting bottom plate 903 and the inner cylinder 901 are fixedly connected into a whole; the die body 904 is provided with a through hole as the center, the through hole is provided with internal threads on the inner wall, and the die body 904 is screwed on the inner cylinder 901 through the external threads 902 of the inner cylinder 901; the limiting convex ring 905 is provided with a through hole as the center, the inner wall of the through hole is provided with a limiting convex ring inner thread 906 in a whole body, and the limiting convex ring 905 is sleeved on the upper part of the die body 904 through the inner thread of the through hole in a screwing way; the fixed compression cover 907 is fixedly arranged at the upper part of the limit convex ring 905; two tightening clamping grooves 10 are fixedly arranged, one is fixedly arranged at the middle position of the upper part of the fixed compression cover 907, and the other is fixedly arranged at the middle position of the bottom of the limiting convex ring 905; the tightening clamping grooves 10 are symmetrically arranged at the front and rear positions of the bottom of the limiting convex ring 905.
The pressing arm 6 and the mandrel 4 are fixedly arranged on a sliding frame of the ring rolling machine 1, and a distance for adjusting the contact interval between the driving roller 3 and the mandrel 4 is arranged between the pressing arm 6 and the mandrel 4; the pressing part 7 of the pressing arm 6 is correspondingly matched with the mandrel 4, and the pressing part 7 is hollow cylindrical.
The pressing arm 6 is driven by a hydraulic cylinder of the ring rolling machine 1 to lift or descend up and down at the upper position of the mandrel 4.
The upper surface of the limiting bottom plate 903 is an outward inclined surface, and the bottom surface of the limiting convex ring 905 is an outward inclined surface.
The mold body 904 comprises a cylinder body 9041, the cylinder body 9041 is a hollow cylinder, an upper column-shaped protrusion 9042 is fixedly arranged at the upper part of the surface of the cylinder body 9041, a lower column-shaped protrusion 9043 is fixedly arranged at the lower part of the surface of the cylinder body 9041, the upper column-shaped protrusion 9042 and the lower column-shaped protrusion 9043 are fixedly arranged around the circumference of the cylinder body 9041, and the upper column-shaped protrusion 9042 and the lower column-shaped protrusion 9043 are arranged in parallel up and down.
The limiting convex ring 905 is matched with the inner cylinder external thread 902 of the inner cylinder 901 on the inner cylinder 901 through the limiting convex ring 906 in the through hole of the limiting convex ring 905, so that the vertical position on the inner cylinder 901 is adjusted.
The fixed compression cover 907 comprises an annular boss 9071, the annular boss 9071 is fixedly arranged at the upper part of the tightening bolt 9072, and the annular boss 9071 and the tightening bolt 9072 are fixedly connected into a whole; the screw thread 9073 is fixedly arranged on the surface of the tightening bolt 9072, the tightening clamping groove 10 is fixedly arranged in the middle of the annular boss 9071 of the fixed compression cover 907, and the tightening clamping groove 10 is symmetrically arranged at the front-back position of the annular boss 9071.
The rolling device of the double-channel variable-pitch bearing ring is used in the following process: firstly, the distance between the mandrel 4 and the driving roller 3 is adjusted through the sliding frame of the mandrel 4 and the pressing arm 6 of the ring rolling machine 1, so that a high Wen Taojuan forging to be rolled can be closely placed between the driving roller 3 and the mandrel 4, and at the moment, the ferrule forging is closely contacted with the die body 904 of the ferrule rolling die 9; simultaneously, the position of the axial conical roller 8 is adjusted, so that the axial conical roller 8 clamps the right part of the ferrule forging, and the axial conical roller 8 plays a role in supporting the ferrule forging; then, starting a hydraulic cylinder of the clamping arm 2, so that the clamping arm 2 tightly clamps the ring forging, and simultaneously, tightly contacting an arm clamping guide roller 5 of the clamping arm 2 with the outer wall of the ring forging; at the moment, a motor and a speed reducer of a driving roller 3 of the ring rolling machine 1 are started to enable the driving roller 3 to rotate clockwise, and a driving motor of a mandrel 4 is started to enable the mandrel 4 to rotate anticlockwise, so that under the combined action of a clamping arm 2, the driving roller 3, the mandrel 4, a pressing arm 6 and an axial conical roller 8, an upper column-shaped bulge 9041 and a lower column-shaped bulge 9042 of a ferrule rolling die 9 are in contact rolling with the inner side surface of a ferrule of a variable pitch bearing, and the ferrule shape required by the variable pitch bearing is formed; the process is the using process of the rolling device of the double-channel variable-pitch bearing ring.
The method for installing the ferrule rolling die of the rolling device for the double-channel variable-pitch bearing ferrule comprises the following steps: step one, mounting a die body: firstly, a limiting bottom plate 903 and an inner cylinder 901 are fixedly connected into an integrated structure, then a through hole of a die body 904 is aligned with the inner cylinder 901, and the die body 904 is screwed to the upper part of the limiting bottom plate 903 by utilizing the engagement screwing of the internal thread of the through hole of the die body 904 and the external thread 902 of the inner cylinder 901; step two, mounting a limiting convex ring: after the die body 904 in the first step is installed, aligning the through hole of the limiting convex ring 905 with the inner cylinder 901, and screwing the limiting convex ring 905 until the limiting convex ring 905 is in close contact with the die body 904 by using the engaging screwing of the limiting convex ring inner screw thread 906 in the through hole of the limiting convex ring 905 and the inner cylinder outer screw thread 902 of the inner cylinder 901; step three, mounting a fixed compression cover: after the limiting convex ring 905 in the second step is installed, the tightening bolt 9072 of the fixed compression cover 907 is aligned to the central through hole at the upper part of the limiting convex ring 905, then the tightening clamping groove 9704 on the wrench clamping annular boss 9071 is used for screwing, and the limiting convex ring 905 is fixed firmly by means of engagement screwing of the thread 9073 on the tightening bolt 9072 and the thread 906 in the limiting convex ring 905 through hole.
Claims (6)
1. A rolling device of a double-channel variable-pitch bearing ring comprises a ring rolling machine, a clamping arm, a driving roller, a mandrel and an arm guiding roller; the clamping arm is fixedly arranged at the front side and the rear side of the driving roller of the ring rolling machine, the clamping arm is arc-shaped, and the arm guide roller is fixedly arranged at the end part of the right side of the clamping arm; the driving roller is fixedly arranged at the center of the clamping arm and is vertically and fixedly connected with a speed reducer and a driving motor of the ring rolling machine; the mandrel is fixedly arranged at the right side of the driving roller, and the mandrel and the driving roller are symmetrically arranged left and right; the pressing arm is fixedly arranged at the left side of the ring rolling machine and fixedly connected with the sliding frame of the ring rolling machine, and the upper part of the pressing arm is fixedly provided with a pressing part; the axial conical roller is fixedly arranged at the right side of the ring rolling machine and freely slides left and right on the frame of the ring rolling machine; the method is characterized in that: the ferrule rolling die is sleeved on the mandrel and is pressed and fixed by a pressing part of the pressing arm; the ferrule rolling die comprises an inner cylinder, wherein the inner cylinder is hollow and cylindrical, and an outer wall of the inner cylinder is provided with an inner cylinder external thread through a whole body; the limiting bottom plate is fixedly arranged at the bottom of the inner cylinder and is fixedly connected with the inner cylinder into a whole; the die body is provided with a through hole in the center, an inner thread is arranged on the inner wall of the through hole, and the die body is screwed on the inner barrel through the outer thread of the inner barrel; the die body comprises a cylinder body, the cylinder body is a hollow cylinder, an upper column-shaped bulge is fixedly arranged at the upper part of the surface of the cylinder body, a lower column-shaped bulge is fixedly arranged at the lower part of the surface of the cylinder body, the upper column-shaped bulge and the lower column-shaped bulge are fixedly arranged around the circumference of the cylinder body, and the upper column-shaped bulge and the lower column-shaped bulge are arranged in parallel up and down; the limiting convex ring is provided with a through hole in the center, the inner wall of the through hole is provided with a limiting convex ring internal thread in a whole body, and the limiting convex ring is sleeved on the upper part of the die body through the internal thread of the through hole in a screwing way; the fixed compression cover is fixedly arranged at the upper part of the limiting convex ring and comprises an annular boss which is fixedly arranged at the upper part of the tightening bolt, and the annular boss and the tightening bolt are fixedly connected into a whole; the screw thread is fixedly arranged on the surface of the tightening bolt, the tightening clamping groove is fixedly arranged in the middle of the annular boss of the fixed compression cover, and the tightening clamping groove is symmetrically arranged at the front and rear positions of the annular boss; two tightening clamping grooves are fixedly arranged, one tightening clamping groove is fixedly arranged at the middle position of the upper part of the fixed compression cover, and the other tightening clamping groove is fixedly arranged at the middle position of the bottom of the limiting convex ring; the tightening clamping grooves are symmetrically arranged at the front and back positions of the bottom of the limiting convex ring.
2. The rolling device for the double-channel variable-pitch bearing ring according to claim 1, wherein: the pressing arm and the mandrel are fixedly arranged on a sliding frame of the ring rolling machine, and a distance for adjusting the contact interval between the driving roller and the mandrel is arranged between the pressing arm and the mandrel; the compressing part of the compressing arm is correspondingly matched with the mandrel, and the compressing part is hollow cylinder-shaped.
3. The rolling device for the double-channel variable-pitch bearing ring according to claim 1, wherein: the pressing arm is driven by a hydraulic cylinder of the ring rolling machine to lift or descend up and down at the upper part of the mandrel.
4. The rolling device for the double-channel variable-pitch bearing ring according to claim 1, wherein: the upper part of the limiting bottom plate is provided with an outward inclined surface, and the bottom surface of the limiting convex ring is also provided with an outward inclined surface.
5. The rolling device for the double-channel variable-pitch bearing ring according to claim 4, wherein: the limiting convex ring is matched with the external thread of the inner cylinder through the internal limiting convex ring thread of the limiting convex ring through hole on the inner cylinder, so that the vertical position on the inner cylinder is adjusted.
6. The ferrule rolling die installation method of the double-channel variable-pitch bearing ferrule rolling device according to claim 1, wherein the method comprises the following steps: step one, mounting a die body: firstly, a limiting bottom plate and an inner cylinder are fixedly connected into an integrated structure, then a through hole of a die body is aligned with the inner cylinder, and the die body is screwed to the upper part of the limiting bottom plate by utilizing the engagement screwing of the internal thread of the through hole of the die body and the external thread of the inner cylinder; step two, mounting a limiting convex ring: after the die body in the first step is installed, aligning the through hole of the limiting convex ring with the inner cylinder, and screwing the limiting convex ring until the limiting convex ring is in close contact with the die body by utilizing the engagement screwing of the inner thread of the limiting convex ring in the through hole of the limiting convex ring and the outer thread of the inner cylinder; step three, mounting a fixed compression cover: after the limiting convex ring in the second step is installed, the tightening bolt of the fixed compression cover is aligned to the central through hole at the upper part of the limiting convex ring, then the tightening clamping groove on the annular boss is clamped by a wrench to conduct screwing action, and the limiting convex ring is fixed firmly by means of meshing screwing of the threads on the tightening bolt and the internal threads of the limiting convex ring in the limiting convex ring through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910291719.8A CN109909408B (en) | 2019-04-12 | 2019-04-12 | Rolling device for double-channel variable-pitch bearing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910291719.8A CN109909408B (en) | 2019-04-12 | 2019-04-12 | Rolling device for double-channel variable-pitch bearing ring |
Publications (2)
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| CN109909408B true CN109909408B (en) | 2023-12-26 |
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| JP2007032632A (en) * | 2005-07-25 | 2007-02-08 | Arai Pump Mfg Co Ltd | Pipe joint |
| CN101823111A (en) * | 2010-05-28 | 2010-09-08 | 二重集团（德阳）重型装备股份有限公司 | Overlarge type ring rolling machine |
| CN103978133A (en) * | 2014-04-30 | 2014-08-13 | 浙江远大重工锻压有限公司 | Spherical ring rolling machine |
| CN204396756U (en) * | 2015-01-20 | 2015-06-17 | 山东伊莱特重工有限公司 | Integral type core roller rolles over ring mould |
| CN104942214A (en) * | 2014-03-26 | 2015-09-30 | 无锡隆迪精密锻件有限公司 | Forging technology for race used for large-scale mine vehicle wheel |
| CN105562568A (en) * | 2015-12-16 | 2016-05-11 | 青岛衡均锻压机械有限公司 | Vertical rolling expansion machine and rolling expansion method |
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2019
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007032632A (en) * | 2005-07-25 | 2007-02-08 | Arai Pump Mfg Co Ltd | Pipe joint |
| CN101823111A (en) * | 2010-05-28 | 2010-09-08 | 二重集团（德阳）重型装备股份有限公司 | Overlarge type ring rolling machine |
| CN104942214A (en) * | 2014-03-26 | 2015-09-30 | 无锡隆迪精密锻件有限公司 | Forging technology for race used for large-scale mine vehicle wheel |
| CN103978133A (en) * | 2014-04-30 | 2014-08-13 | 浙江远大重工锻压有限公司 | Spherical ring rolling machine |
| CN204396756U (en) * | 2015-01-20 | 2015-06-17 | 山东伊莱特重工有限公司 | Integral type core roller rolles over ring mould |
| CN105562568A (en) * | 2015-12-16 | 2016-05-11 | 青岛衡均锻压机械有限公司 | Vertical rolling expansion machine and rolling expansion method |
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| CN109909408A (en) | 2019-06-21 |
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