CN216442184U - Driving structure of large roller base surface grinding support shaft - Google Patents
Driving structure of large roller base surface grinding support shaft Download PDFInfo
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- CN216442184U CN216442184U CN202123257520.5U CN202123257520U CN216442184U CN 216442184 U CN216442184 U CN 216442184U CN 202123257520 U CN202123257520 U CN 202123257520U CN 216442184 U CN216442184 U CN 216442184U
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- sleeve
- jackscrew
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Abstract
A driving structure of a large roller base surface grinding support shaft comprises a rotating shaft sleeve, a rotating shaft and a motor; the rotating shaft is rotatably connected with the rotating shaft sleeve through a front bearing and a rear bearing, and the rotating shaft is in transmission connection with the motor through a one-way bearing to form an overrunning clutch driving structure; a supporting shaft head is arranged at the end of the rotating shaft far away from the motor; when the roller base surface grinding support shafts are used in a matched mode, a stable supporting and positioning reference of the double-supporting shaft head rotating support for roller end surface grinding processing is formed; meanwhile, the overrunning clutch structure of the base surface grinding support shaft ensures that the rotating speed of the roller is always consistent with the rotating speed of the support shaft with higher rotating speed in the base surface grinding process, and the roller and the shaft head with slower rotating speed cannot slide relatively, so that the support reference in the processing process is more stable and reliable, the dependence of the roller changing and debugging of different models on operators is eliminated, the changing and debugging time is greatly shortened, the stability of the roller base surface grinding process is ensured, and the economic benefit of enterprises is improved.
Description
Technical Field
The utility model relates to the technical field of large-scale wind power bearing processing equipment, in particular to a driving structure of a large-scale roller base surface grinding supporting shaft.
Background
The large conical and cylindrical rollers are used as important parts of the wind power bearing, and have higher requirements on the geometric accuracy of the base surface of the end part of the roller. In the prior domestic grinding processing of the end faces of large conical and cylindrical rollers, a guide rotation method of single guide wheel driving and cutting board supporting and positioning is adopted, in the actual operation, because the guide wheel and the cutting board are of a separated structure, the relative position and the angle of the cutting board relative to the guide wheel are required to be adjusted to be in a proper state during the replacement, the rotation state of the roller to be ground is ensured to be stable in the grinding process, and then the position and the angle of a grinding wheel relative to the roller to be ground are adjusted, so that the difficulty in debugging the end face run-out and the R face of a sphere is extremely high, and the debugging can be completed only by an experienced operator repeatedly and meticulously; therefore, when the rollers of different models are reloaded and debugged, the dependence on people is extremely high, the debugging efficiency is extremely low, and even a plurality of days are required for processing, reloading and debugging of some types of rollers, so that the production efficiency of enterprises is seriously influenced; in addition, in the normal grinding process of the roller base surface, if the position and angle between the cutting board and the guide wheel are not properly adjusted, the positioning datum in the grinding process is extremely unstable and irregularly changed, so that the grinding quality of the end surface of the roller is seriously influenced; the two problems in the prior art are puzzled for a long time on the end face grinding of large conical and cylindrical rollers, and become a problem to be solved urgently for large wind power bearing processing enterprises.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the background technology, the utility model discloses a driving structure of a large roller base surface grinding support shaft, which comprises a rotating shaft sleeve, a rotating shaft and a motor, wherein the rotating shaft sleeve is arranged on the rotating shaft sleeve; the rotating shaft is rotatably connected with the rotating shaft sleeve through a front bearing and a rear bearing, and the rotating shaft is in transmission connection with the motor through a one-way bearing to form an overrunning clutch driving structure; a supporting shaft head is arranged at the end of the rotating shaft far away from the motor; when the roller base surface grinding support shafts are used in a matched mode, a stable supporting and positioning reference of the double-supporting shaft head rotating support for roller end surface grinding processing is formed; meanwhile, the overrunning clutch structure of the base surface grinding support shaft ensures that the rotating speed of the roller is always consistent with the rotating speed of the support shaft with higher rotating speed in the base surface grinding process, and the roller and the support shaft head with slower rotating speed cannot slide relatively, so that the support reference in the processing process is more stable and reliable.
In order to realize the purpose of the utility model, the utility model adopts the following technical scheme: a driving structure for a large roller base surface grinding support shaft comprises a rotating shaft sleeve, a rotating shaft and a motor; the rotating shaft is rotatably connected with the rotating shaft sleeve through a front bearing and a rear bearing, and the rotating shaft is in transmission connection with the motor through a one-way bearing to form an overrunning clutch driving structure; a supporting shaft head is arranged at the end of the rotating shaft far away from the motor; when the roller base surface grinding support shafts are used in a matched mode, a stable supporting and positioning reference of the double-supporting shaft head rotating support for roller end surface grinding processing is formed; meanwhile, the overrunning clutch structure of the base surface grinding support shaft ensures that the rotating speed of the roller is always consistent with the rotating speed of the support shaft with higher rotating speed in the base surface grinding process, and the roller and the support shaft head with slower rotating speed cannot slide relatively, so that the support reference in the processing process is more stable and reliable.
Further, the base surface grinding support shaft comprises a rotating shaft sleeve, a rotating shaft and a motor; the rotating shaft is rotatably connected with the rotating shaft sleeve through a front bearing and a rear bearing, and the rotating shaft is in transmission connection with the motor through a one-way bearing; the configuration structure of the front bearing and the rear bearing of the rotating shaft and the rotating shaft sleeve adopts a precise angular contact bearing, and is pre-stressed axially, so that the rotating precision of the supporting shaft head is ensured, the stability of the grinding process of the roller base surface is ensured, and the rotation of the rotating shaft is directly driven by a motor; the motor is a direct current motor, and the rotating speeds of the two direct current motors are kept synchronous in the working process of the roller base surface grinding tool.
Furthermore, the base surface grinding support shaft also comprises a one-way bearing seat and a torque transmission sleeve; the one-way bearing block is in a short ring shape with an inner flange at one end, a clamp spring groove is arranged on the inner circumference of the other side, and a plurality of one-way bearing block jackscrew holes are arranged on the outer circumference; the torque transmission sleeve is in a short ring shape, the inner hole is provided with threads, and the outer circumference is provided with a plurality of torque transmission sleeve jackscrew holes and torque transmission sleeve jackscrew through grooves; the right end of the rotating shaft is provided with a rotating shaft tail end connecting thread, and the rotating shaft tail end connecting thread is provided with a plurality of rotating shaft top thread grooves; the unidirectional bearing comprises a unidirectional bearing inner sleeve and a unidirectional bearing outer sleeve; an inner sleeve key groove is formed in an inner sleeve hole of the one-way bearing inner sleeve, and a plurality of bearing outer sleeve top thread grooves are formed in the outer circumference of the one-way bearing outer sleeve; the one-way bearing is arranged on a driving shaft of the motor, and an inner sleeve of the one-way bearing is in driving connection with the driving shaft of the motor through an inner sleeve key groove and a flat key; the one-way bearing seat is arranged on the outer side of the one-way bearing outer sleeve, the position of a screw jacking groove of the bearing outer sleeve corresponds to that of a screw jacking hole of the one-way bearing seat, a jacking screw B is fixedly arranged in the screw jacking hole of the one-way bearing outer sleeve through threads, and the head of the jacking screw B abuts against the bottom of the screw jacking groove of the bearing outer sleeve; the torque transmission sleeve is fixedly arranged at the right side end part of the rotating shaft through threads, a top screw hole of the torque transmission sleeve corresponds to the top screw groove of the rotating shaft in position, a top screw A is fixedly arranged in the top screw hole of the torque transmission sleeve through threads, and the head part of the top screw A is arranged at the bottom of the top screw groove of the rotating shaft in a butting manner; the tail section B of the jackscrew is arranged in the jackscrew through groove of the torque transmission sleeve; the above structural design enables an overrunning clutch driving structure to be formed between the motor driving shaft and the rotating shaft, and under normal conditions, the rotation of the motor driving shaft is transmitted to the rotating shaft finally to drive the rotating shaft to rotate through the one-way bearing inner sleeve, the one-way bearing outer sleeve, the one-way bearing seat, the jackscrew B, the torque transmission sleeve and the jackscrew A in sequence; the structural design ensures that under certain special conditions, when the rotating speeds of the direct current motors of the two base surface grinding support shafts are asynchronous, the roller is still in rolling contact with the two support shaft heads, and the rotating speed of the roller is consistent with the rotating speed of the support shaft driven by the direct current motor with higher rotating speed, so that the roller is prevented from sliding relative to the support shaft head driven by the direct current motor with lower rotating speed, and the phenomenon that the positioning reference is unstable in the end surface grinding process of the roller is influenced, and the quality of the end surface grinding processing of the roller is influenced; the working principle is that when the rotating speeds of the two direct current motors are asynchronous, the rotating speeds of the two supporting shaft heads are asynchronous, the supporting shaft head driving roller with higher rotating speed keeps higher rotating speed, the rotor with higher rotating speed can drive the rotating speed of the supporting shaft head with lower rotating speed to be increased and surpass the rotating speed of the direct current motor driving the roller to rotate, so that the rotating speed of the roller is always consistent with the rotating speed of the supporting shaft driven by the direct current motor with higher rotating speed, and the roller and the supporting shaft head driven by the direct current motor with lower rotating speed can not slide relatively.
Furthermore, a supporting shaft head is arranged at the left end of the rotating shaft; the end part of the rotating shaft sleeve, which is positioned at the side of the supporting shaft head, is fixedly provided with a front end cover; the end part of the rotating shaft sleeve, which is positioned at the side of the motor, is fixedly provided with a rear end cover, and the motor is fixedly connected with the rotating shaft sleeve through the rear end cover.
Furthermore, the rotating shaft is of a hollow structure; a shaft head end plate is fixedly arranged at the left end part of the supporting shaft head; the design of the rotating shaft with a hollow structure is beneficial to reducing the rotational inertia of the rotating shaft and improving the corresponding speed of the system.
Further, be equipped with the support spindle nose heavy groove on the outer circumference of support spindle nose, the heavy groove design of support spindle nose has two purposes: firstly, the length of a contact line between a cylindrical roller and a supporting shaft head is reduced, and the probability of influence on the supporting and positioning of the roller caused by possible foreign matters between the roller and the supporting shaft head is reduced; when the supporting device is used for processing the tapered roller, a supporting contact point between the tapered roller and the supporting shaft head is changed into two points from a single point, so that the supporting stability of the base surface of the tapered roller during grinding processing is improved.
Due to the adoption of the technical scheme, the utility model has the following beneficial effects: the two roller base surface grinding support shafts are used for rotatably supporting the large roller to form a stable supporting and positioning reference for grinding the end surface of the roller; meanwhile, the driving structure of the grinding support shaft of the base surface of the large roller adopts an overrunning clutch structure to drive, so that the rotation speed of the roller is always kept consistent with the rotation speed of the support shaft with higher rotation speed, and the roller and the shaft head with slower rotation speed can not slide relatively, therefore, the device has the advantages of convenient and fast replacement and adjustment, stable and reliable support reference in the processing process, getting rid of the dependence of the replacement and debugging of the rollers with different models on operators, greatly shortening the replacement and debugging time, simultaneously ensuring the stability of the grinding process of the base surface of the roller, and improving the economic benefit of enterprises.
Drawings
FIG. 1 is an appearance schematic diagram of a large roller base surface grinding support shaft;
FIG. 2 is an exploded view of a large roller base surface grinding support shaft structure;
FIG. 3 is a schematic view of the outer appearance;
FIG. 4 is a schematic view of the appearance of the one-way bearing;
FIG. 5 is a schematic view of an appearance of a one-way bearing seat;
FIG. 6 is a schematic exterior view of the torque transmitting sleeve;
FIG. 7 is a schematic sectional view of a grinding support shaft structure of a large roller base surface;
FIG. 8 is an enlarged view of a portion A of the cross-sectional structure of the grinding support shaft for the support base;
fig. 9 is a schematic view of the use state of the large roller base surface grinding support shaft.
In the figure: 1. A rotating shaft sleeve; 2. a rotating shaft; 2.1, supporting a shaft head; 2.1.1, supporting the spindle head sink; 2.2, connecting a thread at the tail of the rotating shaft; 2.3, a rotating shaft jackscrew groove; 2.4, a shaft head end plate; 3. a motor; 4. a front bearing; 5. a front end cover; 6. a rear bearing; 7. a one-way bearing; 7.1, a one-way bearing inner sleeve; 7.1.1, an inner sleeve key groove; 7.2, a one-way bearing outer sleeve; 7.2.1, a bearing outer sleeve top thread groove; 8. a one-way bearing seat; 8.1, a screw hole is arranged on the one-way bearing seat; 8.2, a clamp spring groove; 9. a torque transfer sleeve; 9.1, a torque transmission sleeve jackscrew hole; 9.2, a torque transmission sleeve jackscrew through groove; 10. a clamp spring for the hole; 11. a rear end cap; 12. a top thread A; 13. top threads B and 14 and rollers.
Detailed Description
The present invention will be explained in detail by the following examples, which are disclosed for the purpose of protecting all technical improvements within the scope of the present invention.
A driving structure of a large roller base surface grinding support shaft comprises a rotating shaft sleeve 1, a rotating shaft 2 and a motor 3; the rotating shaft 2 is rotatably connected with the rotating shaft sleeve 1 through a front bearing 4 and a rear bearing 6, and the rotating shaft 2 is in transmission connection with the motor 3 through a one-way bearing 7; the base surface grinding support shaft 2.1 also comprises a one-way bearing seat 8 and a torque transmission sleeve 9; the one-way bearing seat 8 is in a short ring shape with an inner flange at one end, a clamp spring groove 8.2 is arranged on the inner circumference of the other side, and a plurality of one-way bearing seat jackscrew holes 8.1 are arranged on the outer circumference; the torque transmission sleeve 9 is in a short ring shape, the inner hole is provided with threads, and the outer circumference is provided with a plurality of torque transmission sleeve jackscrew holes 9.1 and torque transmission sleeve jackscrew through grooves 9.2; a rotating shaft tail end connecting thread 2.2 is arranged at the right end of the rotating shaft 2, and a plurality of rotating shaft top thread grooves 2.3 are arranged on the rotating shaft tail end connecting thread 2.2; the unidirectional bearing 7 comprises a unidirectional bearing inner sleeve 7.1 and a unidirectional bearing outer sleeve 7.2; an inner sleeve key groove 7.1.1 is arranged in an inner sleeve hole of the one-way bearing inner sleeve 7.1, and a plurality of bearing outer sleeve jackscrew grooves 7.2.1 are arranged on the outer circumference of the one-way bearing outer sleeve 7.2; the one-way bearing 7 is arranged on a driving shaft of the motor 3, and an inner sleeve 7.1 of the one-way bearing is in driving connection with the driving shaft of the motor 3 through an inner sleeve key groove 7.1.1 and a flat key; the one-way bearing seat 8 is arranged at the outer side of the one-way bearing outer sleeve 7.2, the bearing outer sleeve jackscrew groove 7.2.1 corresponds to the one-way bearing seat jackscrew hole 8.1 in position, the one-way bearing seat jackscrew hole 8.1 is fixedly provided with a jackscrew B13 through threads, and the head of the jackscrew B13 props against the bottom of the bearing outer sleeve jackscrew groove 7.2.1; the torque transmission sleeve 9 is fixedly arranged at the right side end part of the rotating shaft through threads, a torque transmission sleeve jackscrew hole 9.1 corresponds to the position of a rotating shaft jackscrew groove 2.3, a jackscrew A12 is fixedly arranged in the torque transmission sleeve jackscrew hole 9.1 through threads, and the head of the jackscrew A12 is arranged at the bottom of the rotating shaft jackscrew groove 2.3 in a propping manner; the tail section of the jackscrew B13 is arranged in the jackscrew through groove 9.2 of the torque transmission sleeve; the left end of the rotating shaft 2 is provided with a supporting shaft head 2.1; the end part of the rotating shaft sleeve 1, which is positioned at the end part of the support shaft head 2.1, is fixedly provided with a front end cover 5; the end part of the rotating shaft sleeve 1, which is positioned at the end part of the motor 3, is fixedly provided with a rear end cover 11, and the motor 3 is fixedly connected with the rotating shaft sleeve 1 through the rear end cover 11; the rotating shaft 2 is of a hollow structure; a shaft head end plate 2.5 is fixedly arranged at the left end part of the supporting shaft head 2.1; the outer circumference of the supporting shaft head 2.1 is provided with a supporting shaft head sink 2.1.1.
The supporting structure of the large roller base surface grinding supporting shaft for the grinding roller is completely different from the traditional supporting structure of a single guide wheel driving and cutting board, the roller 14 and the supporting spindle nose 2.1 roll only, so that the sliding structure between the supporting cutting board and the roller 14 in the prior art is not capable of scraping the foreign matters attached to the roller 14, and the potential problem exists that when the foreign matters enter between the contact line or the contact point between the roller 14 and the supporting spindle nose 2.1, the supporting stability of the roller 14 is seriously influenced, particularly, when the driving structure of the large roller base surface grinding supporting shaft is used, the possibility of the foreign matters attached to the outer end surface side of the roller is highest, in order to prevent the foreign matters from entering between the contact line or the contact point between the roller 14 and the supporting spindle nose 2.1, the outer end surface of the roller to be ground exceeds the supporting spindle nose 2.1 by at least 15mm, and the spraying direction of the grinding emulsion is sprayed to the grinding wheel along the axial direction, the grinding foreign matters attached to the roller 14 or the supporting shaft head 2.1 are washed away by the grinding emulsion, the grinding foreign matters are prevented from entering between a contact line or a contact point of the roller 14 and the supporting shaft head 2.1, and the supporting stability of the roller 14 in the grinding process is ensured.
The present invention is not described in detail in the prior art.
Claims (5)
1. The utility model provides a drive structure of large-scale roller base face grinding back shaft which characterized by: comprises a rotating shaft sleeve (1), a rotating shaft (2) and a motor (3); the rotating shaft (2) is rotatably connected with the rotating shaft sleeve (1) through a front bearing (4) and a rear bearing (6), and the rotating shaft (2) is in transmission connection with the motor (3) through a one-way bearing (7); a supporting shaft head (2.1) is arranged at the end of the rotating shaft (2) far away from the motor (3).
2. The driving structure of the large roller base grinding support shaft according to claim 1, wherein: the base surface grinding support shaft also comprises a one-way bearing seat (8) and a torque transmission sleeve (9);
the one-way bearing seat (8) is in a short ring shape with an inner flange at one end, a clamp spring groove (8.2) is arranged on the inner circumference of the other side, and a plurality of one-way bearing seat jackscrew holes (8.1) are arranged on the outer circumference;
the torque transmission sleeve (9) is in a short ring shape, the inner hole is provided with threads, and the outer circumference is provided with a plurality of torque transmission sleeve jackscrew holes (9.1) and torque transmission sleeve jackscrew through grooves (9.2);
a rotating shaft tail end connecting thread (2.2) is arranged at the right end of the rotating shaft (2), and a plurality of rotating shaft top thread grooves (2.3) are arranged on the rotating shaft tail end connecting thread (2.2);
the unidirectional bearing (7) comprises a unidirectional bearing inner sleeve (7.1) and a unidirectional bearing outer sleeve (7.2); an inner sleeve key groove (7.1.1) is arranged in an inner sleeve hole of the one-way bearing inner sleeve (7.1), and a plurality of bearing outer sleeve top thread grooves (7.2.1) are arranged on the outer circumference of the one-way bearing outer sleeve (7.2);
the one-way bearing (7) is arranged on a driving shaft of the motor (3), and an inner sleeve (7.1) of the one-way bearing is in driving connection with the driving shaft of the motor (3) through an inner sleeve key groove (7.1.1) and a flat key; the one-way bearing seat (8) is arranged on the outer side of the one-way bearing outer sleeve (7.2), the position of a bearing outer sleeve jackscrew groove (7.2.1) corresponds to that of a one-way bearing seat jackscrew hole (8.1), a jackscrew B (13) is fixedly arranged in the one-way bearing seat jackscrew hole (8.1) through threads, and the head of the jackscrew B (13) is abutted against the bottom of the bearing outer sleeve jackscrew groove (7.2.1); the torque transmission sleeve (9) is fixedly arranged at the right side end part of the rotating shaft through threads, a torque transmission sleeve jackscrew hole (9.1) corresponds to the position of the rotating shaft jackscrew groove (2.3), a jackscrew A (12) is fixedly arranged in the torque transmission sleeve jackscrew hole (9.1) through threads, and the head part of the jackscrew A (12) is arranged at the bottom of the rotating shaft jackscrew groove (2.3) in a propping mode; the tail section of the jackscrew B (13) is arranged in the jackscrew through groove (9.2) of the torque transmission sleeve.
3. The driving structure of the large roller base grinding support shaft according to claim 2, wherein: the end part of the rotating shaft sleeve (1) positioned at the side of the supporting shaft head (2.1) is fixedly provided with a front end cover (5); the end part of the rotating shaft sleeve (1) at the side of the motor (3) is fixedly provided with a rear end cover (11), and the motor (3) is fixedly connected with the rotating shaft sleeve (1) through the rear end cover (11).
4. The driving structure of the large roller base grinding support shaft according to claim 1, wherein: the rotating shaft (2) is of a hollow structure; the left end part of the supporting shaft head (2.1) is fixedly provided with a shaft head end plate (2.5).
5. The driving structure of the large roller base grinding support shaft according to claim 1, wherein: the outer circumference of the supporting shaft head (2.1) is provided with a supporting shaft head sink groove (2.1.1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123257520.5U CN216442184U (en) | 2021-12-23 | 2021-12-23 | Driving structure of large roller base surface grinding support shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123257520.5U CN216442184U (en) | 2021-12-23 | 2021-12-23 | Driving structure of large roller base surface grinding support shaft |
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| Publication Number | Publication Date |
|---|---|
| CN216442184U true CN216442184U (en) | 2022-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123257520.5U Active CN216442184U (en) | 2021-12-23 | 2021-12-23 | Driving structure of large roller base surface grinding support shaft |
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| CN (1) | CN216442184U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114193254A (en) * | 2021-12-23 | 2022-03-18 | 洛阳汇工轴承科技有限公司 | Large-scale roller base face grinding frock |
-
2021
- 2021-12-23 CN CN202123257520.5U patent/CN216442184U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114193254A (en) * | 2021-12-23 | 2022-03-18 | 洛阳汇工轴承科技有限公司 | Large-scale roller base face grinding frock |
| CN114193254B (en) * | 2021-12-23 | 2023-12-26 | 洛阳汇工轴承科技有限公司 | Large-scale roller basal plane grinding frock |
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