CN215567421U - Improved lathe transmission shaft coupling - Google Patents
Improved lathe transmission shaft coupling Download PDFInfo
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- CN215567421U CN215567421U CN202121552170.2U CN202121552170U CN215567421U CN 215567421 U CN215567421 U CN 215567421U CN 202121552170 U CN202121552170 U CN 202121552170U CN 215567421 U CN215567421 U CN 215567421U
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- transition
- connecting flange
- bearing
- lathe
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Abstract
The patent introduces an improved lathe transmission shaft coupler, which comprises a transition shaft, a bearing, an end cover, a fixing bolt, a connecting flange, a shaft sleeve, a plurality of connecting bolts and nuts; the transition shaft is arranged between a lathe transmission shaft and a driving motor main shaft, the bearing is arranged on the outer edge of a first step at the upper end of the transition shaft, the end cover is sleeved on a second step of the transition shaft at the lower side of the bearing through a center hole, the connecting flange is arranged at the lower end of the transition shaft, the shaft sleeve is arranged on the driving motor main shaft, and the connecting bolts respectively penetrate through the connecting holes of the corresponding connecting flange and the screw holes in the shaft sleeve to be matched with nuts to connect the connecting flange with the shaft sleeve. The vibration of the main shaft of the driving motor is greatly counteracted, the stable running of the lathe is ensured, meanwhile, the loosening and damage of the connecting bolt are reduced, and the service life is prolonged; simple structure is compact, simple to operate compares in complicated mechanical gearbox, saves cost of maintenance, reduces the production input.
Description
Technical Field
The utility model relates to the technical field of machining, in particular to an improved lathe transmission shaft coupler.
Background
In the machining industry, a large number of traditional vertical lathes with long ages still provide a large part of productivity in the machining of large-diameter rings at present; the lathe turntable is limited by the technical conditions at that time, the transmission of the lathe turntable is mostly that the motor passes through belt transmission, the turntable is large in vibration amplitude during working, unstable and affects use, after improvement, a transmission shaft of the lathe turntable and a driving motor are connected through a set of mechanical gearbox, the rotating speed of the turntable is controlled, but when the gearbox goes wrong, the gearbox is complex in structure, difficult to maintain, high in cost, long in time and affects production.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides an improved lathe transmission shaft coupler which replaces the original gearbox, connects a lathe transmission shaft with a driving motor spindle, and is simple in structure, safe and stable.
The technical scheme adopted by the utility model is as follows:
an improved lathe transmission shaft coupler comprises a transition shaft, a bearing, an end cover, a fixing bolt, a connecting flange, a shaft sleeve, a plurality of connecting bolts and a nut;
the transition shaft is arranged between the lathe transmission shaft and the driving motor spindle, the outer diameter of the transition shaft is of a multi-step structure with the gradually decreasing outer diameter from top to bottom, the upper end of the transition shaft penetrates through the lathe transmission shaft mounting panel to be connected with the lathe transmission shaft, a claw disc structure in concave-convex staggered fit is arranged on the end face of the large-diameter end of the upper end of the transition shaft and on the end face of the lathe transmission shaft, and a key groove is arranged on the outer edge of a third step at the lower end of the transition shaft; the bearing is arranged on the outer edge of a first step at the upper end of the transition shaft, the upper end surface of the bearing inner ring is attached to a shaft shoulder of the first step, and the upper end surface of the bearing outer ring is attached to a panel of a transmission box body of a lathe transmission shaft;
the middle part of the end cover is provided with a central hole, the end cover is sleeved on a second step of the transition shaft at the lower side of the bearing through the central hole, the central hole is of a step structure, the step end face of the central hole is pressed on the lower end face of the outer ring of the bearing, and an inner ring avoiding groove is arranged at the position, corresponding to the inner ring of the bearing, of the step end face of the central hole; the end cover is uniformly provided with a plurality of bolt holes along the ring surface, and fixing bolts penetrate through the bolt holes to connect the end cover with a transmission box body panel of a lathe transmission shaft;
the connecting flange is arranged at the lower end of the transition shaft, a step through hole is arranged in the middle of the connecting flange, the inner diameter of the step through hole is respectively matched with the outer diameter of a second step and the outer diameter of a third step of the transition shaft, a key groove matched with the key groove on the transition shaft is arranged on the inner wall of the step through hole of the connecting flange, the connecting flange is in key connection with the transition shaft, and a plurality of connecting holes are uniformly arranged on the ring surface of the connecting flange;
the shaft sleeve is arranged on a main shaft of the driving motor, a key groove is formed in an inner hole of the shaft sleeve, the shaft sleeve is in key connection with the main shaft of the driving motor, the outer edge of the shaft sleeve is of a step structure, screw holes corresponding to the connecting holes in the connecting flange are formed in the step ring surface, and the connecting flange is connected with the shaft sleeve by the fact that the connecting bolts respectively penetrate through the corresponding connecting holes in the connecting flange and the screw holes in the shaft sleeve and are matched with nuts.
Specifically, a circle of sealing ring groove is arranged on the inner diameter of the end cover center hole in contact with the transition shaft, and a sealing ring is arranged in the sealing ring.
Specifically, the diameter of the connecting hole in the connecting flange is larger than the outer diameter of the connecting bolt, and the outer edge of the connecting bolt in the connecting hole is uniformly provided with a damping rubber ring.
Specifically, the bolt holes in the end cover are countersunk bolt holes.
Due to the adoption of the technical scheme, the utility model has the following advantages:
according to the utility model, a complex mechanical gearbox is not needed, the damping rubber ring is arranged between the connecting flange and the connecting bolt, so that the vibration of the main shaft of the driving motor is greatly counteracted, and the amplitude is greatly reduced through the action of the bearing when the connecting flange is transmitted to a lathe transmission shaft, so that the stable operation of a lathe is ensured, meanwhile, the loosening damage of the connecting bolt is reduced, and the service life is prolonged; simple structure is compact, simple to operate compares in complicated mechanical gearbox, saves cost of maintenance, reduces the production input.
Drawings
FIG. 1 is a schematic cross-sectional view of the integral joint of the present invention.
Fig. 2 is a schematic view of the construction of the transition shaft of the present invention.
FIG. 3 is a schematic cross-sectional view of the end cap of the present invention.
Fig. 4 is a schematic top view of the attachment flange of the present invention.
Fig. 5 is a top schematic view of the bushing of the present invention.
In the figure: 1-transition shaft, 2-bearing, 3-end cover, 31-inner ring avoiding groove, 32-sealing ring groove, 33-bolt hole, 4-fixing bolt, 5-connecting flange, 51-connecting hole, 6-damping rubber ring, 7-shaft sleeve, 71-screw hole, 8-connecting bolt, 9-nut, 10-lathe transmission shaft, 11-transmission box body panel of lathe transmission shaft, 12-driving motor spindle and 13-key groove.
Detailed Description
The utility model is further explained below with reference to the drawings and examples, without thereby limiting the scope of protection of the utility model, which is disclosed with the aim of protecting all technical modifications within the scope of the utility model.
An improved lathe transmission shaft coupler is shown in the attached figures 1-5 and comprises a transition shaft 1, a bearing 2, an end cover 3, a fixing bolt 4, a connecting flange 5, a shaft sleeve 7, a plurality of connecting bolts 8 and a nut 9.
The transition shaft 1 is arranged between a lathe transmission shaft 10 and a driving motor spindle 12, the transition shaft 1 is of a multistage step structure with the outer diameter gradually reduced from top to bottom, the upper end of the transition shaft 1 penetrates through a transmission box body panel 11 of the lathe transmission shaft to be connected with the lathe transmission shaft 10, a claw disc structure in concave-convex staggered fit is arranged on the end face of the large-diameter end of the upper end of the transition shaft 1 and the end face of the lathe transmission shaft 10 oppositely, and a key groove 13 is arranged on the outer edge of a third step of the lower end of the transition shaft 1; bearing 2 sets up on the first step outer fringe in transition axle 1 upper end, and bearing 2 inner ring up end and first step shaft shoulder laminate mutually, and bearing 2 outer ring up end laminates mutually with the transmission box panel 11 of lathe transmission shaft.
The middle part of the end cover 3 is provided with a central hole, the end cover 3 is sleeved on a second step of the transition shaft 1 at the lower side of the bearing 2 through the central hole, the central hole is of a step structure, the step end face of the central hole is pressed on the lower end face of the outer ring of the bearing 2, and the step end face of the central hole is provided with an inner ring avoiding groove 31 at the position corresponding to the inner ring of the bearing 2; a circle of sealing ring grooves 32 are arranged on the inner diameter of the central hole of the end cover 3, which is contacted with the transition shaft 1, and sealing rings are arranged in the sealing rings; the end cover 3 is uniformly provided with a plurality of bolt holes 33 along the ring surface, the bolt holes 33 are countersunk bolt holes 33, and the fixing bolts 4 penetrate through the bolt holes 33 to connect the end cover 3 with the transmission case panel 11 of the lathe transmission shaft.
Connecting flange 5 sets up on 1 lower extreme of transition axle, connecting flange 5 middle part sets up to the step through-hole, step through-hole internal diameter respectively with the second step external diameter and the third step external diameter phase-match of transition axle 1, be provided with on 5 step through-hole inner walls of connecting flange with transition axle 1 on keyway 13 assorted keyway 13, connecting flange 5 and 1 key-type connection of transition axle, evenly be provided with a plurality of connecting holes 51 on the 5 anchor ring of connecting flange, the diameter of connecting hole 51 is greater than connecting bolt 8 external diameter, evenly be provided with on the 8 outer edges of connecting bolt in connecting hole 51 and cushion rubber ring 6.
The shaft sleeve 7 is arranged on a driving motor main shaft 12, a key groove 13 is formed in an inner hole of the shaft sleeve 7, the shaft sleeve 7 is in key connection with the driving motor main shaft 12, the outer edge of the shaft sleeve 7 is of a step structure, screw holes 71 corresponding to a plurality of connecting holes 51 in the connecting flange 5 are formed in the step ring surface, and a plurality of connecting bolts 8 penetrate through the corresponding connecting holes 51 in the connecting flange 5 and the corresponding screw holes 71 in the shaft sleeve 7 to be matched with nuts 9 to connect the connecting flange 5 with the shaft sleeve 7.
During installation, the concave-convex claw disc structure at the end part of the transition shaft 1 and the concave-convex claw disc structure at the end part of the lathe transmission shaft 10 are in staggered insertion fit, the inner diameter of the bearing 2 is in interference fit with the first step of the transition shaft 1, the end cover 3 is fixedly connected with a transmission box body panel 11 of the lathe transmission shaft through a fixing bolt 4, and the outer ring of the bearing 2 is tightly pressed between the end cover 3 and the transmission box body panel 11 of the lathe transmission shaft by the end cover 3; the connecting flange 5 is in key connection with the transition shaft 1, the shaft sleeve 7 is in key connection with the driving motor spindle 12, the connecting flange 5 is connected with the shaft sleeve 7 through the connecting bolt 8 and the nut 9, and the connection of the lathe transmission shaft 10 and the driving motor spindle 12 is completed.
The present invention is not described in detail in the prior art.
The embodiments selected for the purpose of disclosing the utility model, are presently considered to be suitable, it being understood, however, that the utility model is intended to cover all variations and modifications of the embodiments falling within the scope of the inventive concept and the utility model.
Claims (4)
1. The utility model provides an improved lathe transmission shaft coupling which characterized in that: the device comprises a transition shaft, a bearing, an end cover, a fixing bolt, a connecting flange, a shaft sleeve, a plurality of connecting bolts and nuts;
the transition shaft is arranged between a lathe transmission shaft and a driving motor spindle, the outer diameter of the transition shaft is of a multi-step structure with the gradually decreasing outer diameter from top to bottom, the upper end of the transition shaft penetrates through a transmission box body panel of the lathe transmission shaft to be connected with the lathe transmission shaft, a claw disc structure which is matched with the lathe transmission shaft in a concave-convex staggered mode is arranged on the end face of the large-diameter end of the upper end of the transition shaft and is opposite to the end face of the lathe transmission shaft, and a key groove is formed in the outer edge of a third step at the lower end of the transition shaft; the bearing is arranged on the outer edge of a first step at the upper end of the transition shaft, the upper end surface of the bearing inner ring is attached to a shaft shoulder of the first step, and the upper end surface of the bearing outer ring is attached to a panel of a transmission box body of a lathe transmission shaft;
the middle part of the end cover is provided with a central hole, the end cover is sleeved on a second step of the transition shaft at the lower side of the bearing through the central hole, the central hole is of a step structure, the step end face of the central hole is pressed on the lower end face of the outer ring of the bearing, and an inner ring avoiding groove is arranged at the position, corresponding to the inner ring of the bearing, of the step end face of the central hole; the end cover is uniformly provided with a plurality of bolt holes along the ring surface, and fixing bolts penetrate through the bolt holes to connect the end cover with a transmission box body panel of a lathe transmission shaft;
the connecting flange is arranged at the lower end of the transition shaft, a step through hole is arranged in the middle of the connecting flange, the inner diameter of the step through hole is respectively matched with the outer diameter of a second step and the outer diameter of a third step of the transition shaft, a key groove matched with the key groove on the transition shaft is arranged on the inner wall of the step through hole of the connecting flange, the connecting flange is in key connection with the transition shaft, and a plurality of connecting holes are uniformly arranged on the ring surface of the connecting flange;
the shaft sleeve is arranged on a main shaft of the driving motor, a key groove is formed in an inner hole of the shaft sleeve, the shaft sleeve is in key connection with the main shaft of the driving motor, the outer edge of the shaft sleeve is of a step structure, screw holes corresponding to the connecting holes in the connecting flange are formed in the step ring surface, and the connecting flange is connected with the shaft sleeve by the fact that the connecting bolts respectively penetrate through the corresponding connecting holes in the connecting flange and the screw holes in the shaft sleeve and are matched with nuts.
2. The improved lathe drive shaft coupling of claim 1, wherein: and a circle of sealing ring groove is arranged on the inner diameter of the end cover central hole in contact with the transition shaft, and a sealing ring is arranged in the sealing ring.
3. The improved lathe drive shaft coupling of claim 2, wherein: the diameter of the connecting hole on the connecting flange is larger than the outer diameter of the connecting bolt, and the outer edge of the connecting bolt in the connecting hole is uniformly provided with a damping rubber ring.
4. The improved lathe drive shaft coupling of claim 1, wherein: the bolt holes in the end covers are countersunk bolt holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121552170.2U CN215567421U (en) | 2021-07-09 | 2021-07-09 | Improved lathe transmission shaft coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121552170.2U CN215567421U (en) | 2021-07-09 | 2021-07-09 | Improved lathe transmission shaft coupling |
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| Publication Number | Publication Date |
|---|---|
| CN215567421U true CN215567421U (en) | 2022-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121552170.2U Active CN215567421U (en) | 2021-07-09 | 2021-07-09 | Improved lathe transmission shaft coupling |
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| CN (1) | CN215567421U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114645907A (en) * | 2022-03-11 | 2022-06-21 | 宁波东力传动设备有限公司 | Connecting structure of motor and speed reducer and mounting method thereof |
-
2021
- 2021-07-09 CN CN202121552170.2U patent/CN215567421U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114645907A (en) * | 2022-03-11 | 2022-06-21 | 宁波东力传动设备有限公司 | Connecting structure of motor and speed reducer and mounting method thereof |
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