CN212455199U - Active shaft assembly - Google Patents
Active shaft assembly Download PDFInfo
- Publication number
- CN212455199U CN212455199U CN202020985593.2U CN202020985593U CN212455199U CN 212455199 U CN212455199 U CN 212455199U CN 202020985593 U CN202020985593 U CN 202020985593U CN 212455199 U CN212455199 U CN 212455199U
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- Prior art keywords
- shaft head
- movable
- hole
- cylindrical
- pressing sleeve
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- Withdrawn - After Issue
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- 238000003825 pressing Methods 0.000 claims abstract description 22
- 238000007906 compression Methods 0.000 claims abstract description 19
- 230000006835 compression Effects 0.000 claims abstract description 18
- 230000000694 effects Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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Abstract
本实用新型涉及一种活动轴头组件，包括活动压套和活动轴头，活动轴头包括自上而下固定连接的轴头顶部、轴头中部和轴头下部，活动压套顶部开有通孔，轴头顶部包括自上而下固定连接的第一圆柱体部、锥台部和第二圆柱体部，第一圆柱体部、锥台部和第二圆柱体部同心设置且第二圆柱体部的底面面积大于第一圆柱体部的底面面积，锥台部的上表面直径与第一圆柱体部的底面直径相同，锥台部的下表面直径与第二圆柱体部的底面直径相同，第一圆柱体部从通孔中伸出，轴头中部与活动压套顶部的内侧之间设有压缩弹簧组，活动压套的底部设有孔用弹性挡圈，轴头下部从孔用弹性挡圈内伸出。本实用新型有效解决了工字轮长期使用内孔磨大对顶夹紧后出现的偏心问题。
The utility model relates to a movable shaft head assembly, comprising a movable pressing sleeve and a movable shaft head. The movable shaft head comprises a shaft head top, a middle part of the shaft head and a lower part of the shaft head which are fixedly connected from top to bottom. The hole, the top of the shaft head includes a first cylindrical portion, a frustum portion and a second cylindrical portion that are fixedly connected from top to bottom, the first cylindrical portion, the frustum portion and the second cylindrical portion are concentrically arranged and the second cylindrical portion The bottom surface area of the body part is larger than the bottom surface area of the first cylindrical body part, the diameter of the upper surface of the frustum part is the same as the diameter of the bottom surface of the first cylindrical part, and the diameter of the lower surface of the frustum part is the same as the diameter of the bottom surface of the second cylindrical part , the first cylindrical part protrudes from the through hole, a compression spring group is arranged between the middle part of the shaft head and the inner side of the top of the movable pressure sleeve, the bottom of the movable pressure sleeve is provided with a spring retaining ring for the hole, and the lower part of the shaft head is used for the hole. The elastic retaining ring protrudes inside. The utility model effectively solves the eccentricity problem that occurs after the inner hole of the I-shaped wheel is used for a long time to be enlarged and clamped to the top.
Description
Technical Field
The utility model relates to a spindle nose subassembly especially relates to a movable spindle nose subassembly.
Background
In the prior art, cylindrical shaft heads are used, as shown in figures 1-3, the size and the shape of the cylindrical shaft heads cannot be changed, but in the actual production process, when inner holes of a spool are ground to be large after long-term use, the spool is eccentric and moves after being clamped in opposite directions, so that the spool is unbalanced in rotation and can shake too much to influence the product quality. Therefore, an engineer directly changes the cylindrical shaft head into the conical shaft head, but in the jacking process, the conical shaft head is in line contact with an inner hole of the spool, and other surfaces are not in contact, so that in the jacking process, the spool can be inclined, and accurate jacking clamping work cannot be carried out.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that the I-shaped wheel uses the hole to grind the tight back eccentric float of butt clamp that appears after big for a long time, the utility model provides a loose axle head subassembly solves this problem.
The utility model discloses a movable shaft head assembly, including the activity press sleeve and set up the activity spindle nose in the activity press sleeve, the activity spindle nose include top-down fixed connection's spindle nose top, spindle nose middle part and spindle nose lower part, the activity press sleeve top is opened has the through-hole, the spindle nose top include top-down fixed connection's first cylinder portion, frustum portion and second cylinder portion, first cylinder portion, frustum portion and second cylinder portion concentric setting and the bottom surface area of second cylinder portion is greater than the bottom surface area of first cylinder portion, the upper surface diameter of frustum portion is the same with the bottom surface diameter of first cylinder portion, the lower surface diameter of frustum portion is the same with the bottom surface diameter of second cylinder portion, first cylinder portion stretch out from the through-hole at activity press sleeve top, the spindle nose middle part with the activity press and be equipped with compression spring group between the inboard at sleeve top, the bottom of the movable pressing sleeve is provided with a hole circlip, and the lower part of the shaft head extends out of the hole circlip.
In order to enable the movable shaft head to be stably propelled, the spring force of the compression spring set is greater than the dead weight of the supported spool.
Further, the middle part and the lower part of the shaft head are both cylinders and are concentrically arranged, and the area of the bottom surface of the lower part of the shaft head is smaller than that of the bottom surface of the middle part of the shaft head.
Furthermore, the movable pressing sleeve is a hollow cylinder, and the middle part of the shaft head is in clearance fit with the inner side of the movable pressing sleeve.
As optimization, the one end circumference that the spindle nose middle part is close to the spindle nose top is equipped with four holes, and four holes set up the periphery at the spindle nose top, compression spring group include four compression spring, during every compression spring one end was put into the hole, the other end was connected with the inboard at activity pressure cover top.
Further, specifically, the diameter of the through hole is the same as the diameter of the lower surface of the frustum portion.
The utility model discloses, the beneficial effect is: (1) when the movable shaft head assembly starts to push the spool upwards, the lower end face of the spool is horizontally contacted with the upper surface of the movable pressing sleeve under the action of the compression spring (the spring force is greater than the weight of the spool), the spool stably rises, and the spool cannot incline. (2) After the spool is jacked in place, the movable pressing sleeve moves downwards relative to the movable shaft head under the action of external force, the conical surface of the conical table part is adapted to the actual inner diameter of the spool hole (the spool is used for a long time, the inner hole is larger as the inner hole is worn), so that the centering property of the clamped spool after jacking is ensured, the eccentric and the shifting are avoided, and the spool cannot greatly shake during rotation, so that the product quality is improved.
Drawings
FIG. 1 is a cylindrical stub shaft in current use;
FIG. 2 is a schematic structural view of a currently used cylindrical spindle head before being clamped in an opposite manner;
FIG. 3 is a schematic structural view of a currently used cylindrical spindle head after being clamped in an opposite manner;
FIG. 4 is a schematic structural view of the movable shaft head assembly of the present invention;
FIG. 5 is a schematic structural view of the movable shaft head assembly of the present invention before being clamped in a butt-joint manner;
fig. 6 is a schematic structural view of the movable shaft head assembly of the present invention after being clamped in an opposite manner.
1-movable pressing sleeve; 2-the top of the shaft head; 3-the middle part of the shaft head; 4-lower part of the shaft head; 5-a through hole; 6-a first cylindrical portion; 7-a frustum portion; 8-a second cylindrical portion; 9-elastic retainer ring; 10-inner hole; 11-compression spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in figures 4-6, the movable shaft head assembly of the utility model comprises a movable pressing sleeve 1 and a movable shaft head arranged in the movable pressing sleeve 1, the movable shaft head comprises a shaft head top part 2, a shaft head middle part 3 and a shaft head lower part 4 which are fixedly connected from top to bottom, the top of the movable pressing sleeve 1 is provided with a through hole 5, the shaft head top part 2 comprises a first cylindrical part 6, a frustum part 7 and a second cylindrical part 8 which are fixedly connected from top to bottom, the first cylindrical part 6, the frustum part 7 and the second cylindrical part 8 are concentrically arranged, the area of the bottom surface of the second cylindrical part 8 is larger than that of the first cylindrical part 6, the diameter of the upper surface of the frustum part 7 is the same as that of the bottom surface of the first cylindrical part 6, the diameter of the lower surface of the frustum part 7 is the same as that of the bottom surface of the second cylindrical part 8, the first cylindrical part 6 extends out of the through hole 5 at the top of the movable pressing sleeve 1, a compression spring group is arranged between, the bottom of the movable pressing sleeve 1 is provided with a hole circlip 9, and the lower part 4 of the shaft head extends out of the hole circlip 9.
The spring force of the compression spring set is greater than the dead weight of the supported spool. The middle part 3 and the lower part 4 of the shaft head are both cylinders and are concentrically arranged, and the area of the bottom surface of the lower part 4 of the shaft head is smaller than that of the bottom surface of the middle part 3 of the shaft head. The movable pressing sleeve 1 is a hollow cylinder, and the middle part 3 of the shaft head is in clearance fit with the inner side of the movable pressing sleeve 1. The one end circumference that spindle nose middle part 3 is close to spindle nose top 2 is equipped with four holes 10, and four holes 10 set up in the periphery of spindle nose top 2, and compression spring group includes four compression spring 11, and during hole 10 was put into to 11 one ends of every compression spring, the other end was connected with the top inboard of movable pressure cover 1. The diameter of the through hole 5 is the same as the diameter of the lower surface of the frustum portion 7.
The working principle is as follows: when the movable shaft head assembly starts to push the spool upwards, the lower end face of the spool is horizontally contacted with the upper surface of the movable pressing sleeve 1 under the action of the compression spring 11 (the spring force is greater than the weight of the spool), the spool stably rises, and the spool cannot incline. After the spool is jacked in place, the movable pressing sleeve 1 moves downwards relative to the movable shaft head assembly under the action of external force, the conical surface of the conical table part 7 is adapted to the actual inner diameter of a spool hole (the spool is used for a long time, the inner hole is larger when the spool is worn), so that the centering property of the clamped spool after opposite jacking is ensured, the eccentric and the shifting are avoided, and the spool cannot shake too much during rotation, so that the product quality is improved.
Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.
Claims (6)
1. A movable shaft head component is characterized in that: the movable shaft head comprises a shaft head top, a shaft head middle part and a shaft head lower part which are fixedly connected from top to bottom, the top of the movable pressing sleeve is provided with a through hole, the shaft head top comprises a first cylindrical part, a conical part and a second cylindrical part which are fixedly connected from top to bottom, the first cylindrical part, the conical part and the second cylindrical part are concentrically arranged, the area of the bottom surface of the second cylindrical part is larger than that of the bottom surface of the first cylindrical part, the diameter of the upper surface of the conical part is the same as that of the bottom surface of the first cylindrical part, the diameter of the lower surface of the conical part is the same as that of the bottom surface of the second cylindrical part, the first cylindrical part extends out of the through hole at the top of the movable pressing sleeve, a compression spring group is arranged between the middle part of the shaft head and the inner side of the top of the movable pressing sleeve, and an elastic check ring for holes is arranged at the bottom of the movable pressing sleeve, the lower part of the shaft head extends out of the elastic retainer ring for the hole.
2. The movable spindle head assembly of claim 1, wherein: the spring force of the compression spring set is greater than the dead weight of the supported spool.
3. The movable spindle head assembly of claim 1, wherein: the middle part and the lower part of the shaft head are both cylinders and are concentrically arranged, and the area of the bottom surface of the lower part of the shaft head is smaller than that of the bottom surface of the middle part of the shaft head.
4. The movable spindle head assembly of claim 3, wherein: the movable pressing sleeve is a hollow cylinder, and the middle part of the shaft head is in clearance fit with the inner side of the movable pressing sleeve.
5. The movable spindle head assembly of claim 1, wherein: the one end circumference that the spindle nose middle part is close to the spindle nose top is equipped with four holes, and four holes set up the periphery at the spindle nose top, compression spring group including four compression spring, during every compression spring one end was put into the hole, the other end was connected with the inboard at activity pressure cover top.
6. The movable spindle head assembly of claim 1, wherein: the diameter of the through hole is the same as that of the lower surface of the frustum part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020985593.2U CN212455199U (en) | 2020-06-02 | 2020-06-02 | Active shaft assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020985593.2U CN212455199U (en) | 2020-06-02 | 2020-06-02 | Active shaft assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212455199U true CN212455199U (en) | 2021-02-02 |
Family
ID=74478862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020985593.2U Withdrawn - After Issue CN212455199U (en) | 2020-06-02 | 2020-06-02 | Active shaft assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212455199U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111536147A (en) * | 2020-06-02 | 2020-08-14 | 张家港市瑞昌智能机器系统有限公司 | Movable shaft head assembly |
-
2020
- 2020-06-02 CN CN202020985593.2U patent/CN212455199U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111536147A (en) * | 2020-06-02 | 2020-08-14 | 张家港市瑞昌智能机器系统有限公司 | Movable shaft head assembly |
| CN111536147B (en) * | 2020-06-02 | 2025-01-03 | 张家港市瑞昌智能机器系统有限公司 | Active shaft head assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20210202 Effective date of abandoning: 20250103 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20210202 Effective date of abandoning: 20250103 |