CN212455199U - Movable shaft head assembly - Google Patents
Movable shaft head 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
- Authority
- CN
- China
- Prior art keywords
- shaft head
- movable
- hole
- pressing sleeve
- cylinder portion
- 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.)
- Active
Links
Images
Landscapes
- Automatic Assembly (AREA)
Abstract
The utility model relates to a movable shaft head component, which comprises a movable pressing sleeve and a movable shaft head, wherein the movable shaft head comprises a shaft head top part, 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 top of the shaft head comprises a first cylinder part which is fixedly connected from top to bottom, frustum portion and second cylinder portion, first cylinder portion, frustum portion and the concentric setting of second cylinder portion and the bottom surface area of second cylinder portion are 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 stretches out from the through-hole, be equipped with compression spring group between the inboard at spindle nose middle part and activity pressure cover top, the bottom that the cover was pressed in the activity is equipped with the circlip for the hole, stretch out in the circlip for the hole is followed to the spindle nose lower part. The utility model discloses effectively solved the spool and used the hole to grind greatly to the eccentric problem that appears after the top clamp is tight for a long time.
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 | Movable shaft head assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020985593.2U CN212455199U (en) | 2020-06-02 | 2020-06-02 | Movable shaft head 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 Active CN212455199U (en) | 2020-06-02 | 2020-06-02 | Movable shaft head assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212455199U (en) |
-
2020
- 2020-06-02 CN CN202020985593.2U patent/CN212455199U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202079381U (en) | Device for press mounting of automobile front-wheel hub-bearing outer ring | |
| CN102941460B (en) | Outer ring loading tool of tapered roller bearing | |
| CN212455199U (en) | Movable shaft head assembly | |
| CN101585144B (en) | Elastic positioning device of turbine shell | |
| CN205888660U (en) | Drilling frock of connecting plate | |
| CN215280729U (en) | Retaining ring press fitting tool and press fitting machine | |
| CN111536147A (en) | Movable shaft head assembly | |
| CN209902699U (en) | Floating assembly clamp | |
| CN201511139U (en) | Adjustable thimble with elastic end surface | |
| CN217317007U (en) | Floating centering device for steering tie rod arm | |
| CN210877572U (en) | Shaft neck turning device | |
| CN212095145U (en) | Be applied to automatic centering device of pressure equipment | |
| CN201872134U (en) | Press-mounting device for car shock absorber sleeve | |
| CN201565848U (en) | Honing clamp of thin-wall cylinder sleeve | |
| CN210848388U (en) | Pneumatic tensioning device | |
| CN110667633B (en) | Adjusting device for forming bogie frame and wheel set axle box spring assembly | |
| CN109211561B (en) | Thin-wall cover plate hydrostatic test tool | |
| CN201432188Y (en) | Flexible core clamper | |
| CN211248636U (en) | Gear clamp | |
| CN202192392U (en) | Positioning device for middle section of axle housing | |
| CN207997085U (en) | A kind of welding tool setup of servomechanism | |
| CN209811805U (en) | Blank auxiliary positioning device | |
| CN211761044U (en) | Frock of centering assembly bearing | |
| CN208543178U (en) | Oil storage cylinder of shock absorber bottom cap press mounting die | |
| CN216938799U (en) | Self-adaptive clamping tool for gear workpiece |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |