CN206296463U - A kind of novel heavy duty tailstock main shaft - Google Patents
A kind of novel heavy duty tailstock main shaft Download PDFInfo
- Publication number
- CN206296463U CN206296463U CN201621367622.9U CN201621367622U CN206296463U CN 206296463 U CN206296463 U CN 206296463U CN 201621367622 U CN201621367622 U CN 201621367622U CN 206296463 U CN206296463 U CN 206296463U
- Authority
- CN
- China
- Prior art keywords
- main shaft
- thrust bearing
- cylindrical roller
- bearing
- tailstock
- 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.)
- Expired - Fee Related
Links
- 239000011148 porous material Substances 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 abstract description 5
- 230000005489 elastic deformation Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
The utility model patent discloses a kind of novel heavy duty tailstock main shaft, including main shaft and is arranged on the Biserial cylindrical roller bearing at main shaft two ends, it is characterised in that：Described Biserial cylindrical roller bearing passes through accurate locking nut and locks, and the Biserial cylindrical roller bearing outside on rear side of main shaft is provided with single thrust bearing, single thrust bearing rear side is provided with a butterfly spring, the device changes the position of thrust bearing, and two-direction thrust bearing is changed to single thrust bearing, and the rear side in single thrust bearing sets butterfly spring, tailstock main shaft can be allowed when axial force is born, moved after micro, larger axial impact force is born by the elastic deformation of disc spring, it is excessive so as to solve former rotating tailstock main shaft thrust bearing stress, rolling surface is damaged, influence the problem in life-span.
Description
Technical field
The utility model patent is related to the live spindle on a kind of heavy roller lathe, and especially a kind of bearing that improves is used
The novel heavy duty tailstock main axle structure in life-span, belongs to equipment manufacturing field.
Background technology
At present, the tailstock live spindle on existing numerical control roller lathe is by two double-row cylindrical roller axles of interior pore area taper
Hold and be applied in combination with a two-direction thrust bearing, for the radial load and axial force that overcome tailstock main shaft to be born.But tailstock
Main shaft is changeless after position mixes up in the axial direction, and when having larger axial force, axial force is all applied to two-way
On thrust bearing, if such case is frequently occurred, the roller surface of shaft strength one side is easy for damaging.This be due to：Such as
Shown in accompanying drawing 2, the front-end architecture of the rotary main shaft device be interior pore area taper Biserial cylindrical roller bearing and one it is double
Axial thrust bearing is applied in combination, and with accurate locking nut axial locking；Rear end structure is that a Biserial cylindrical roller bearing is used
Accurate locking nut axial locking.The radial load of live spindle is born by two Biserial cylindrical roller bearings in this structure, axially
Power is born by two-direction thrust bearing.But tailstock main shaft is mainly from the top axial force to afterbody, when the axial direction in this direction
When power is excessive, when such case is frequently occurred, two-direction thrust bearing is easy for damaging.
Utility model content
For the problems of the prior art, the purpose of this utility model is to provide for what a kind of solution bearing surface was often damaged
The new heavy tailstock main shaft of problem, improves the service life of bearing.
In order to achieve the above object, the technical solution of the utility model is：
A kind of novel heavy duty tailstock main shaft, including main shaft and the Biserial cylindrical roller bearing at main shaft two ends is arranged on, it is special
Levy and be：Described Biserial cylindrical roller bearing passes through accurate locking nut and locks, and the double-row cylindrical roller axle on rear side of main shaft
Hold outside and be provided with single thrust bearing, single thrust bearing rear side is provided with a butterfly spring.
Further, described Biserial cylindrical roller bearing is the Biserial cylindrical roller bearing of interior pore area taper.
Compared with prior art, the structure of the novel heavy duty tailstock that the utility model is provided is unusual, that it changes pushing away
The position of power bearing, and two-direction thrust bearing is changed to single thrust bearing, and in the rear side setting butterfly of single thrust bearing
Spring, can allow tailstock main shaft when axial force is born, and larger axial impact is born in micro rear shifting by the elastic deformation of disc spring
Power, so that it is excessive to solve former rotating tailstock main shaft thrust bearing stress, rolling surface is damaged, and influences the problem in life-span.This design structure
Think of is ingenious, solves the great difficult problem occurred in use, economical and practical.It was verified that this rotating tailstock main shaft was than former
The axial force that structure is born is big, can be used for the heavy processing of like product.And the bearing ratio of axial force is born with pre-structure
Bearing life extension.Cost has been saved, the maintenance cost of equipment has been reduced.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Accompanying drawing 1 is the mounting structure schematic diagram of this novel heavy duty tailstock；
Accompanying drawing 2 is the mounting structure schematic diagram of traditional heavy tailstock.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and examples.
As shown in figure 1, a kind of novel heavy duty tailstock main shaft, including main shaft 1 and it is arranged on the biserial cylinder rolling at the two ends of main shaft 1
Sub- bearing 2, this embodiment is characterized in that Biserial cylindrical roller bearing 2 passes through accurate locking nut 3 locking, biserial cylinder rolling
Sub- bearing 2 is to be set on the outside of the Biserial cylindrical roller bearing of interior pore area taper, and the Biserial cylindrical roller bearing 2 of the rear side of main shaft 1
There is single thrust bearing 4, the rear side of single thrust bearing 4 is provided with a butterfly spring 5, the double-row cylindrical roller axle of the front side of main shaft 1
Hold 2 outsides and be not provided with single thrust bearing 4, single thrust bearing 4 herein is than unidirectional axial direction that two-direction thrust bearing 6 bears
Power is big, improves the axial bearing capacity of tailstock main shaft 1.In the range of maximum weighted, the deformation of butterfly spring 5 is elastic deformation,
First it is that butterfly bullet 5 produces elastic deformation when main shaft stress is very big, bears axial force, is moved after main shaft is micro；So as to avoid
Thrust bearing bears axial impact force completely, frequently overload, damages rolling surface.
It is understood that above with respect to specific descriptions of the present utility model, be merely to illustrate the utility model and not
The technical scheme described by the utility model embodiment is limited to, it will be understood by those within the art that, still can be with
The utility model is modified or equivalent, to reach identical technique effect；As long as satisfaction uses needs, all in this reality
Within new protection domain.
Claims (2)
1. a kind of novel heavy duty tailstock main shaft, including main shaft (1) and the Biserial cylindrical roller bearing at main shaft (1) two ends is arranged on
(2), it is characterised in that：Described Biserial cylindrical roller bearing (2) is locked by accurate locking nut (3), and main shaft (1) rear side
Biserial cylindrical roller bearing (2) outside be provided with single thrust bearing (4), single thrust bearing (4) rear side is provided with a butterfly
Shape spring (5).
2. a kind of novel heavy duty tailstock main shaft according to claim 1, it is characterised in that：Described double-row cylindrical roller axle
Hold the Biserial cylindrical roller bearing that (2) are interior pore area taper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621367622.9U CN206296463U (en) | 2016-12-13 | 2016-12-13 | A kind of novel heavy duty tailstock main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621367622.9U CN206296463U (en) | 2016-12-13 | 2016-12-13 | A kind of novel heavy duty tailstock main shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206296463U true CN206296463U (en) | 2017-07-04 |
Family
ID=59213877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621367622.9U Expired - Fee Related CN206296463U (en) | 2016-12-13 | 2016-12-13 | A kind of novel heavy duty tailstock main shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206296463U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108163598A (en) * | 2018-01-24 | 2018-06-15 | 上海宗力印刷包装机械有限公司 | A kind of high-precision roller |
| CN109909355A (en) * | 2019-04-12 | 2019-06-21 | 广东鼎力旋压装备有限公司 | High-intensitive main axle structure |
-
2016
- 2016-12-13 CN CN201621367622.9U patent/CN206296463U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108163598A (en) * | 2018-01-24 | 2018-06-15 | 上海宗力印刷包装机械有限公司 | A kind of high-precision roller |
| CN109909355A (en) * | 2019-04-12 | 2019-06-21 | 广东鼎力旋压装备有限公司 | High-intensitive main axle structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170704 |