CN220118529U - Detachable universal shaft - Google Patents
Detachable universal shaft Download PDFInfo
- Publication number
- CN220118529U CN220118529U CN202321150783.2U CN202321150783U CN220118529U CN 220118529 U CN220118529 U CN 220118529U CN 202321150783 U CN202321150783 U CN 202321150783U CN 220118529 U CN220118529 U CN 220118529U
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- CN
- China
- Prior art keywords
- shaft
- flange
- groove
- spline
- bolt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model discloses a detachable universal shaft which comprises a spline shaft, a connecting shaft and a sleeve arranged at one end of the connecting shaft, and is characterized by further comprising a connecting mechanism, wherein the other end of the connecting shaft, which is far away from the sleeve, is detachably connected with the end part of the spline shaft through the connecting mechanism; when the spline of the universal shaft is worn, the universal shaft is directly disassembled, the spline shaft on the universal shaft is disassembled and replaced by a new spline shaft, and the universal shaft can be recovered for use.
Description
Technical Field
The utility model relates to the technical field of rolling, in particular to a detachable universal shaft.
Background
The universal shaft of bar line rolling mill is the main equipment for connecting speed reducer and roller. The cardan shaft needs to be replaced when the spline abrasion of the cardan shaft affects the transmission. Because the spline on the universal shaft is integral with the connecting shaft, the whole universal shaft needs to be scrapped when the spline is seriously damaged, so that larger waste is caused, and the production benefit is seriously influenced.
Disclosure of Invention
The utility model aims to overcome the defects, and provides a detachable universal shaft so as to solve the problem of waste caused by scrapping of an integral universal shaft.
The utility model provides a detachable universal shaft which comprises a spline shaft, a connecting shaft, a sleeve arranged at one end of the connecting shaft and a connecting mechanism, wherein the other end of the connecting shaft, which is far away from the sleeve, is detachably connected with the end part of the spline shaft through the connecting mechanism.
Further, the connecting mechanism comprises a fixing part, the fixing part comprises a first flange and a second flange, the first flange is fixedly arranged at the end part of the spline shaft, the second flange is fixedly arranged at the other end of the connecting shaft far away from the sleeve, and the first flange and the second flange are fixedly connected through a bolt and nut unit.
Further, the first flange and the second flange are fixedly connected through 12 bolt-nut units, the 12 bolt-nut units are distributed in a circumferential array along the circumferential direction of the first flange, and each bolt-nut unit comprises a first flange through hole formed on the end face of the first flange, a second flange through hole formed on the end face of the second flange, a connecting bolt with one end penetrating through the first flange through hole and the second flange through hole, and a connecting nut screwed on the threaded end of the connecting bolt.
Further, the connecting mechanism further comprises a torque transmission part, the torque transmission part comprises a first groove, a second groove and a connecting block, the first groove is formed on the end face of the spline shaft, the second groove is formed on the end face of the connecting shaft, which is far away from the other end of the sleeve, and is opposite to the first groove, and two sides of the connecting block are respectively embedded into the first groove and the second groove.
Further, the connecting block is in interference fit with the first groove and the second groove respectively.
Further, the first groove and the second groove are through grooves.
Further, the connecting block is a flat key, and two end faces of the connecting block are cylindrical faces which are concentric with the first flange and have equal diameters.
Further, the connecting block is fixedly arranged on the spline shaft or the connecting shaft.
Further, the connecting block is detachably and fixedly arranged on the spline shaft or the connecting shaft through a fastening unit, and the fastening unit comprises a threaded blind hole formed on the spline shaft, a countersunk hole formed on the connecting block and a fastening bolt screwed into the threaded blind hole after the threaded end penetrates through the countersunk hole.
The beneficial effects of the utility model are as follows: according to the detachable universal shaft, the universal shaft is divided into the spline shaft and the connecting shaft, the universal shaft and the connecting shaft are detachably fixed together through the first flange, the second flange, the connecting bolt and the connecting nut, meanwhile, the flat key is in interference fit with the spline shaft and the key groove on the connecting shaft, torque is transmitted through the flat key, the phenomenon that the service life of the connecting bolt is too short due to the fact that torque is directly transmitted through the connecting bolt is avoided, and meanwhile, the flat key is further reinforced through the fastening bolt. When the spline of the universal shaft is worn, the universal shaft is directly disassembled, the spline shaft on the universal shaft is disassembled, the new spline shaft is replaced, the universal shaft can be recovered for use, the structure is simple, the maintenance cost is low, the replacement is quick, the maintenance workload is small, and the guarantee is provided for improving the operation rate and the product quality.
Drawings
FIG. 1 is a front view of a removable cardan shaft according to an embodiment of the present utility model;
FIG. 2 is an enlarged partial view of portion A of FIG. 1;
FIG. 3 is a top view of a removable cardan shaft according to an embodiment of the present utility model;
FIG. 4 is a front view of a spline shaft mated with a flat key in an embodiment of the present utility model;
FIG. 5 is a front view of a connecting shaft in an embodiment of the utility model;
fig. 6 is a bottom view of a flat key in an embodiment of the utility model.
In the figure, 1 is a spline shaft, 2 is a connecting shaft, 3 is a sleeve, 4 is a first flange, 5 is a second flange, 6 is a connecting bolt, 7 is a connecting nut, 8 is a first groove, 9 is a second groove, 10 is a flat key, 11 is a countersunk hole, and 12 is a fastening bolt.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
FIG. 1 is a front view of a removable cardan shaft according to an embodiment of the present utility model; FIG. 2 is an enlarged partial view of portion A of FIG. 1; FIG. 3 is a top view of a removable cardan shaft according to an embodiment of the present utility model; FIG. 4 is a front view of a spline shaft mated with a flat key in an embodiment of the present utility model; FIG. 5 is a front view of a connecting shaft in an embodiment of the utility model; fig. 6 is a bottom view of a flat key in an embodiment of the utility model.
As shown in fig. 1 to 6, a detachable cardan shaft in the present embodiment includes a spline shaft 1, a connecting shaft 2, and a sleeve 3 provided at one end of the connecting shaft 2 for fixing to a rolling mill. This is an existing structure and will not be described in detail here. The detachable universal shaft further comprises a connecting mechanism, and the other end, far away from the sleeve 3, of the connecting shaft 2 is detachably connected with the end part of the spline shaft 1 through the connecting mechanism.
The connecting mechanism includes a fixed portion and a torque transmitting portion. The fixing part comprises a first flange 4, a second flange 5 and 12 bolt and nut units.
The first flange 4 is coaxially and fixedly arranged at the end of the spline shaft 1.
The second flange 5 is fixedly arranged coaxially on the other end of the connecting shaft 2 remote from the sleeve 3. The first flange 4 and the second flange 5 have equal diameters.
The first flange 4 and the second flange 5 are fixedly connected by a bolt and nut unit. The 12 bolt-nut units are distributed in a circumferential array along the circumferential direction of the first flange 4. Each of the bolt-and-nut units includes a first flange through hole formed on an end surface of the first flange 4, a second flange through hole formed on an end surface of the second flange 5, a coupling bolt 6 having one end passing through the first and second flange through holes, and a coupling nut 7 screwed on a threaded end of the coupling bolt 6.
The torque transmitting part comprises a first slot 8, a second slot 9 and a connecting block. The first groove 8 is a first key groove formed on the end face of the spline shaft 1, and has openings at both ends thereof. The second groove 9 is a second key groove formed on the end surface of the other end of the connecting shaft 2 remote from the sleeve 3 and provided opposite to the first groove 8. The connecting block is a flat key 10, and two sides of the connecting block are respectively embedded into the first groove 8 and the second groove 9. The key groove is interference fit with the first groove 8 and the second groove 9 in the width direction. The two end surfaces of the key groove in the length direction are columnar surfaces which are concentric with the first flange 4 and have equal diameters. Specifically, the flat key 10 is detachably and fixedly mounted on the spline shaft 1 or the connecting shaft 2 by a fastening unit. In the present embodiment, the flat key 10 is detachably and fixedly mounted on the spline shaft 1 by two fastening units. The two fastening units are arranged at intervals along the length direction of the flat key 10. Each fastening unit includes a threaded blind hole formed on the spline shaft 1, a countersunk hole 11 formed on the connection block, and a fastening bolt 12 screwed into the threaded blind hole after the threaded end passes through the countersunk hole 11. The fastening bolt 12 is a socket head cap bolt. Of course, in other embodiments, the flat key 10 may be fixed to the connecting shaft 2 by a fastening unit, or the flat key 10 may be integrally formed with the connecting shaft 2.
The installation flow of the detachable universal shaft of the embodiment is as follows: the flat key 10 is driven into the first groove 8 from the opening at the end of the first groove 8, and then the flat key 10 is further reinforced in the first groove 8 by the fastening bolt 12. The threaded end of the connecting bolt 6 sequentially passes through the first flange through hole and the second flange through hole, and then the connecting nut 7 is screwed into the threaded end and gradually screwed, so that the other side of the flat key 10 is embedded into the second groove 9. In the detachable universal shaft of the embodiment, after the spline is worn, the connecting nut 7 and the connecting bolt 6 are taken out, and then the flat key 10 and the spline are knocked out from the end part of the second groove 9, so that the detachment of the spline shaft 1 is completed. And the hexagon socket head cap bolts are taken out, the flat key 10 is knocked out, and the flat key 10 can be reused.
In summary, the present utility model is a specific application example, and the protection scope of the present utility model is not limited, and the technical scheme of adopting equivalent substitution falls within the protection scope of the present utility model.
Claims (7)
1. The detachable universal shaft comprises a spline shaft, a connecting shaft and a sleeve arranged at one end of the connecting shaft, and is characterized by further comprising a connecting mechanism, wherein the other end of the connecting shaft far away from the sleeve is detachably connected with the end part of the spline shaft through the connecting mechanism;
the connecting mechanism comprises a fixing part, the fixing part comprises a first flange and a second flange, the first flange is fixedly arranged at the end part of the spline shaft, the second flange is fixedly arranged at the other end of the connecting shaft far away from the sleeve, and the first flange and the second flange are fixedly connected through a bolt and nut unit;
the connecting mechanism further comprises a torque transmission part, the torque transmission part comprises a first groove, a second groove and a connecting block, the first groove is formed in the end face of the spline shaft, the second groove is formed in the end face, far away from the other end of the sleeve, of the connecting shaft and is opposite to the first groove, and two sides of the connecting block are respectively embedded into the first groove and the second groove.
2. The detachable joint shaft according to claim 1, wherein the first flange and the second flange are fixedly connected by 12 units of the bolts and nuts, the 12 units of the bolts and nuts are distributed in a circumferential array along a circumferential direction of the first flange, each unit of the bolts and nuts includes a first flange through hole formed on an end face of the first flange, a second flange through hole formed on an end face of the second flange, a connecting bolt having one end passing through the first flange through hole and the second flange through hole, and a connecting nut screwed on a threaded end of the connecting bolt.
3. The removable cardan shaft of claim 1, wherein the connecting block is interference fit with the first and second grooves, respectively.
4. A removable cardan shaft according to claim 3, wherein said first and second grooves are through grooves.
5. The detachable cardan shaft of claim 4, wherein the connecting block is a flat key and the two end faces of the connecting block are cylindrical surfaces concentric with and of equal diameter to the first flange.
6. The detachable cardan shaft according to claim 1, wherein the connecting block is fixedly arranged on the spline shaft or the connecting shaft.
7. The detachable cardan shaft according to claim 6, wherein a fastening unit is provided on the connection block, the connection block is detachably and fixedly mounted on the spline shaft or the connection shaft by the fastening unit, and the fastening unit comprises a threaded blind hole formed on the spline shaft, a countersunk hole formed on the connection block, and a fastening bolt screwed into the threaded blind hole after the threaded end passes through the countersunk hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321150783.2U CN220118529U (en) | 2023-05-15 | 2023-05-15 | Detachable universal shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321150783.2U CN220118529U (en) | 2023-05-15 | 2023-05-15 | Detachable universal shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220118529U true CN220118529U (en) | 2023-12-01 |
Family
ID=88889536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321150783.2U Active CN220118529U (en) | 2023-05-15 | 2023-05-15 | Detachable universal shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220118529U (en) |
-
2023
- 2023-05-15 CN CN202321150783.2U patent/CN220118529U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |