CN205798455U - A kind of lathe spindle structure - Google Patents
A kind of lathe spindle structure Download PDFInfo
- Publication number
- CN205798455U CN205798455U CN201620562652.9U CN201620562652U CN205798455U CN 205798455 U CN205798455 U CN 205798455U CN 201620562652 U CN201620562652 U CN 201620562652U CN 205798455 U CN205798455 U CN 205798455U
- Authority
- CN
- China
- Prior art keywords
- main shaft
- roller bearing
- described main
- bearing seat
- lathe
- 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
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- Rolling Contact Bearings (AREA)
Abstract
The open a kind of lathe spindle structure of this utility model, described main shaft locks on the base of lathe, described main shaft is provided with main bearing seat, described main bearing seat is locked intrinsic gear ring, the workbench of lathe is locked and connected on described main bearing seat, it is provided with self-aligning thrust roller bearing between described main shaft and main bearing seat, have employed self-aligning thrust roller bearing and bear axially and radially load, main axle structure of the present utility model can bear bigger tilting moment, main shaft is made to have higher bearing capacity, the effective reliability ensureing lathe and the stability of precision, improve the crudy of product.
Description
Technical field
This utility model relates to lathe mechanical part construction applications, relates particularly to the main axle structure of lathe.
Background technology
In medium-sized vertical type lathe, main axle structure typically has two kinds, and one is to use hydrostatic bearing and cylinder roller bearing
Combination, carrys out supply pressure oil owing to hydrostatic bearing must attach a set of special oil supply system, safeguards more complicated and cost
The highest；Another kind of using thrust ball bearing and cylinder roller bearing combination, this design is widely used, and cost also than
Relatively low, but the bearing capacity ratio of this lathe is relatively low, and particularly when processing higher part, the main shaft rigidity of lathe is poor, adds
Work surface of the work surface roughness out is not fine.In view of this, upper for existing lathe spindle structure of the present inventor
State defect further investigation, then have this case to produce.
Utility model content
The purpose of this utility model is to provide a kind of lathe spindle structure, the lathe spindle rigidity of this structure and bearing capacity
Preferably, it is possible to effectively solve above-mentioned problems of the prior art.
For solving this technical problem, the technical solution of the utility model is: a kind of lathe spindle structure, and described main shaft locks
On the base of lathe, described main shaft is provided with main bearing seat, and described main bearing seat is locked intrinsic gear ring, on described main bearing seat
Lock and connect the workbench of lathe, between described main shaft and main bearing seat, be provided with self-aligning thrust roller bearing.
Described self-aligning thrust roller bearing is set in the upper end of main shaft, and described main bearing seat locks intrinsic bearing block for pushing away
Including power self-aligning roller bearing is embedded, the upper surface locking of described main shaft has the gland for compressing self-aligning thrust roller bearing.
It is provided with adjusting pad between described gland and the upper surface of main shaft.
It is provided with between described main bearing seat and base and supports the thrust ball bearing rotated.
Be provided with Biserial cylindrical roller bearing between described main shaft and main bearing seat, described main bearing seat is formed withstand double
The step surface of line column roller bearing upper surface, described main bearing seat is locked intrinsic for withstanding Biserial cylindrical roller bearing following table
The pressure ring in face.
The upper surface of described Biserial cylindrical roller bearing is provided with the locking nut being enclosed within main shaft for adjusting biserial cylinder
The gap of roller bearing, described main shaft is provided with and mates the screw thread screwed togather with locking nut.
It is provided with packing ring between upper surface and the locking nut of described Biserial cylindrical roller bearing.
The lower surface of described Biserial cylindrical roller bearing is provided with the round nut being enclosed within main shaft, and described main shaft is provided with and circle
Nut mates the screw thread screwed togather, and described round nut is for facilitating the dismounting of Biserial cylindrical roller bearing.
By using technique scheme, the beneficial effects of the utility model are: increase have employed and pushes away compared to existing technology
Power self-aligning roller bearing bears axially and radially load, with the main axle structure conventional without installed thrust self-aligning roller bearing
Comparing, main axle structure of the present utility model can bear bigger tilting moment, in conjunction with above-mentioned Biserial cylindrical roller bearing, pushes away
Power ball bearing work in combination and between structure arrange and enable to main shaft there is higher bearing capacity, processing higher part
Time, main axle structure has more preferable rigidity, the effective reliability ensureing lathe and the stability of precision, improves the processing of product
Quality, it is ensured that normally work at big cutting-in, roughing feed condition main shaft, thus realize the purpose of this utility model.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of lathe spindle structure that this utility model relates to.
In figure:
Base-1；Workbench-2；
Main shaft-3；Screw thread-31；Main bearing seat-4；Step surface-41；
Gear ring-5；Self-aligning thrust roller bearing-6；Thrust ball bearing-7；Biserial cylindrical roller bearing-8；
Bearing block-10；Gland-20；Adjusting pad-30；Pressure ring-40；
Locking nut-50；Packing ring-60；Round nut-70.
Detailed description of the invention
In order to the technical solution of the utility model is explained further, below by specific embodiment, this utility model is entered
Row elaborates.
A kind of lathe spindle structure disclosed in this utility model, as shown in Figure 1 have the base 1 of lathe, the work of lathe
Platform 2, main shaft 3, main bearing seat 4, gear ring 5, self-aligning thrust roller bearing 6, thrust ball bearing 7 and Biserial cylindrical roller bearing 8 (push away
Power self-aligning roller bearing, thrust ball bearing and Biserial cylindrical roller bearing are known products), wherein self-aligning thrust roller bearing 6
Setting be main improvements of the present utility model.Describe the position annexation between each parts below in conjunction with the accompanying drawings in detail
And further structure is arranged.
As shown in FIG., described main shaft 3 locks on the shaft core position of base 1, and described main bearing seat 4 is arranged on main shaft 3
On, described gear ring 5 locks on the outer ring of main bearing seat 4, and described workbench 2 locks on main bearing seat 4, described thrust force aligning
Roller bearing 6 is arranged on the rotation between main shaft 3 and main bearing seat 4 for longitudinal bracing main bearing seat 4, described thrust ball bearing
7 are arranged between main bearing seat 4 and base 1, and described Biserial cylindrical roller bearing 8 is arranged between main shaft 3 and main bearing seat 4.
Further, described self-aligning thrust roller bearing 6 is set in the upper end of main shaft 3, and on described main bearing seat, 4 lockings have
Including bearing block 10 arch thrust self-aligning roller bearing 6 is embedded, the upper surface locking of described main shaft 3 has for compressing thrust force aligning rolling
The gland 20 of sub-bearing 6.
Further, it is provided with adjusting pad 30 between described gland 20 and the upper surface of main shaft 3.
Further, described main bearing seat 4 is formed with the step surface 41 withstanding Biserial cylindrical roller bearing 8 upper surface, institute
State main bearing seat 4 to lock the intrinsic pressure ring 40 for withstanding Biserial cylindrical roller bearing 8 lower surface.
Further, the upper surface of described Biserial cylindrical roller bearing 8 is provided with the locking nut 50 being enclosed within main shaft 3 for adjusting
The gap of whole Biserial cylindrical roller bearing 8, described main shaft 3 is provided with and mates the screw thread 31 screwed togather with locking nut 50.
Further, it is provided with packing ring 60 between upper surface and the locking nut 50 of described Biserial cylindrical roller bearing 8.
Further, the lower surface of described Biserial cylindrical roller bearing 8 is provided with the round nut 70 being enclosed within main shaft 3, described master
Axle 3 is provided with and mates the screw thread 31 screwed togather with round nut 70, and described round nut 70 is for facilitating tearing open of Biserial cylindrical roller bearing 8
Unload.
Using said structure, during work, the moment of torsion being transmitted through from the spindle motor of lathe passes to two grades of speed changes through belt
Passing to gear ring 5 by gear again after case, gear ring 5 synchronizes to drive main bearing seat 4, and main bearing seat 4 Timing Belt station 2 of starting building rotates.
Preferably born by thrust ball bearing 7, Biserial cylindrical roller bearing 8, self-aligning thrust roller bearing 6 when main bearing seat 4 rotates
Axially and radially load, it is possible to bear bigger tilting moment, when processing higher part, main axle structure has the most just
Property, there is higher bearing capacity simultaneously, machine tool spindle rigidity is good, precision is high, and the workpiece surface roughness processed is preferable,
The effective reliability ensureing lathe and the stability of precision, improve the crudy of product, it is ensured that at big cutting-in, roughing feed bar
Part main shaft normally works.
Above-described embodiment and graphic and non-limiting product form of the present utility model and style, any art
Those of ordinary skill is suitably changed what it did or modifies, and all should be regarded as without departing from patent category of the present utility model.
Claims (8)
1. a lathe spindle structure, described main shaft locks on the base of lathe, and described main shaft is provided with main bearing seat, described
Main bearing seat is locked intrinsic gear ring, and described main bearing seat locks and connects the workbench of lathe, it is characterised in that: described main shaft with
Self-aligning thrust roller bearing it is provided with between main bearing seat.
2. a kind of lathe spindle structure as claimed in claim 1, it is characterised in that: described self-aligning thrust roller bearing is set in
The upper end of main shaft, described main bearing seat is locked including intrinsic bearing block arch thrust self-aligning roller bearing is embedded, described main shaft
Upper surface locking has the gland for compressing self-aligning thrust roller bearing.
3. a kind of lathe spindle structure as claimed in claim 2, it is characterised in that: between described gland and the upper surface of main shaft
It is provided with adjusting pad.
4. a kind of lathe spindle structure as claimed in claim 1 or 2, it is characterised in that: between described main bearing seat and base
It is provided with and supports the thrust ball bearing rotated.
5. a kind of lathe spindle structure as claimed in claim 1 or 2, it is characterised in that: between described main shaft and main bearing seat
It is provided with Biserial cylindrical roller bearing, described main bearing seat is formed the step surface withstanding Biserial cylindrical roller bearing upper surface,
Described main bearing seat is locked the intrinsic pressure ring for withstanding Biserial cylindrical roller bearing lower surface.
6. a kind of lathe spindle structure as claimed in claim 5, it is characterised in that: the upper table of described Biserial cylindrical roller bearing
Face is provided with the locking nut being enclosed within main shaft for adjusting the gap of Biserial cylindrical roller bearing, and described main shaft is provided with and locks
Nut mates the screw thread screwed togather.
7. a kind of lathe spindle structure as claimed in claim 6, it is characterised in that: the upper table of described Biserial cylindrical roller bearing
Packing ring it is provided with between face and locking nut.
8. a kind of lathe spindle structure as claimed in claim 5, it is characterised in that: the following table of described Biserial cylindrical roller bearing
Face is provided with the round nut being enclosed within main shaft, and described main shaft is provided with and mates the screw thread screwed togather with round nut, and described round nut is used for
Facilitate the dismounting of Biserial cylindrical roller bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620562652.9U CN205798455U (en) | 2016-06-12 | 2016-06-12 | A kind of lathe spindle structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620562652.9U CN205798455U (en) | 2016-06-12 | 2016-06-12 | A kind of lathe spindle structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205798455U true CN205798455U (en) | 2016-12-14 |
Family
ID=58142063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620562652.9U Expired - Fee Related CN205798455U (en) | 2016-06-12 | 2016-06-12 | A kind of lathe spindle structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205798455U (en) |
-
2016
- 2016-06-12 CN CN201620562652.9U patent/CN205798455U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20161214 Termination date: 20200612 |