CN203711869U - Fastening structure for pre-tightening spring base of high-speed motorized spindle - Google Patents
Fastening structure for pre-tightening spring base of high-speed motorized spindle Download PDFInfo
- Publication number
- CN203711869U CN203711869U CN201320893720.6U CN201320893720U CN203711869U CN 203711869 U CN203711869 U CN 203711869U CN 201320893720 U CN201320893720 U CN 201320893720U CN 203711869 U CN203711869 U CN 203711869U
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- CN
- China
- Prior art keywords
- bearing
- spring seat
- preloading spring
- tightening spring
- base
- 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 - Lifetime
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- 238000009434 installation Methods 0.000 abstract 2
- 230000000694 effects Effects 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
Abstract
A fastening structure for a pre-tightening spring base of a high-speed motorized spindle comprises a machine body, a bearing base with an inner cavity, a pre-tightening spring base, a bearing and a shaft core. The shaft core is arranged in the machine body and arranged in the inner cavity of the bearing base in a penetrating mode. The bearing base is arranged between the shaft core and the inner wall of the machine body. The bearing is supported between the shaft core and the bearing base and can rotate along with the shaft core under the effect of external force. A plurality of fixing holes are formed in the peripheral direction of the machine body and the pre-tightening spring base. A plurality of fixing parts are fixed in the corresponding fixing holes so as to fix the pre-tightening spring base to the machine body. A plurality of installation holes are formed in one end, opposite to the pre-tightening spring base, of the bearing base. The pre-tightening spring base is provided with a plurality of dowels matched with the installation holes. Compared with the prior art, when the shaft core works and drives the bearing to rotate, the dowels fix the bearing base and the pre-tightening spring base, so that the bearing base is effectively prevented from rotating under driving of the bearing.
Description
Technical field
The utility model relates to a kind of fastening structure of high-speed electric main shaft preloading spring seat.
Background technology
In the prior art, in high-speed electric main shaft, be provided with the preloading spring with bearing fit, to guarantee rigidity and the running accuracy of bearing.Conventionally, bearing block is arranged on preloading spring seat, and preloading spring is arranged between preloading spring seat and bearing block.Preloading spring seat and bearing block will rotate under the drive of bearing so, when rotated.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model is intended to provide a kind of fastening structure that can prevent the high-speed electric main shaft preloading spring seat that preloading spring seat and bearing block rotate.
For achieving the above object, the utility model adopts following technical scheme:
A fastening structure for high-speed electric main shaft preloading spring seat, it comprises body, the bearing block with inner chamber, preloading spring seat, bearing and axle core.Axle core is arranged in body and is arranged in the inner chamber of bearing block, and bearing block is arranged between axle core and body inwall, and bearings also can together be rotated with axle core under external force between axle core and bearing block.On the circumferencial direction of body and preloading spring seat, be provided with some fixing holes, some fixtures are fixed in corresponding fixing hole so that preloading spring seat is fixed on body.One end that bearing block is relative with preloading spring seat is provided with some installing holes, is provided with some pins that coordinate with installing hole on preloading spring seat.
On body inwall, be provided with step, preloading spring seat is arranged between axle core and body and is supported on step.
The beneficial effects of the utility model are:
Than prior art, in the utility model, when axle core drives bearing rotary, pin is fixed bearing block and preloading spring seat, thereby effectively prevents that bearing block from rotating under the drive of bearing.Meanwhile, when mounted, pin plays pretension and positioning action to bearing block to a certain extent.
Accompanying drawing explanation
Fig. 1 is the cutaway view of the utility model high-speed electric main shaft;
Fig. 2 is the cutaway view of another angle of high-speed electric main shaft shown in Fig. 1;
Wherein: 10, body; 11, step; 20, bearing block; 21, installing hole; 23, pin; 25, inner chamber; 30, preloading spring seat; 31, fixing hole; 32, fixture; 40, bearing; 50, axle core.
The specific embodiment
Below, by reference to the accompanying drawings and the specific embodiment, the utility model is described further:
Please refer to Fig. 1 and Fig. 2, a kind of high-speed electric main shaft of the present utility model, it comprises body 10, the bearing block 20 with inner chamber 25, preloading spring seat 30, bearing 40 and axle core 50.Axle core 50 is arranged in body 10 and is arranged in the inner chamber 25 of bearing block 20.Bearing block 20 is arranged between axle core 50 and body 10 inwalls.Bearing 40 is sheathed between axle core 50 and bearing block 20 and can with axle core 50, together rotates under external force.
Body 10 is hollow cylindrical substantially, is provided with step 11 on its inwall.Preloading spring seat 30 is arranged between axle core 50 and body 10 and is supported on step 11, to guarantee the axial location of preloading spring seat 30.On the circumferencial direction of body 10 and preloading spring seat 30, be provided with some fixing holes 31.Some fixtures 32 are fixed in corresponding fixing hole 31, so that preloading spring seat 30 is fixed on body 10.
Bearing block 20 is sheathed in body 10 and is supported on preloading spring seat 30.One end that bearing block 20 is relative with preloading spring seat 30 is provided with some installing holes 21.On preloading spring seat 30, be provided with some pins 23 with some installing hole 21 correspondence positions.When bearing block 20 is arranged on preloading spring seat 30, pin 23 is fixed in installing hole 21, so that bearing block 20 is fixing with preloading spring seat 30.
In the present embodiment, when 50 band dynamic bearing 40 rotation of axle core, pin 23 is fixing with preloading spring seat 30 by bearing block 20, thereby effectively prevents that bearing block 20 from rotating under the drive of bearing 40.Meanwhile, when mounted, pin 23 plays pretension and positioning action to bearing block 20 to a certain extent.
To one skilled in the art, can make other various corresponding changes and deformation according to technical scheme described above and design, and within these all changes and deformation all should belong to the protection domain of the utility model claim.
Claims (2)
1. a fastening structure for high-speed electric main shaft preloading spring seat, it is arranged in high-speed electric main shaft, it is characterized in that: this high-speed electric main shaft comprises body, the bearing block with inner chamber, preloading spring seat, bearing and axle core; Axle core is arranged in body and is arranged in the inner chamber of bearing block, and bearing block is arranged between axle core and body inwall, and bearings also can together be rotated with axle core under external force between axle core and bearing block; On the circumferencial direction of body and preloading spring seat, be provided with some fixing holes, some fixtures are fixed in corresponding fixing hole so that preloading spring seat is fixed on body; One end that bearing block is relative with preloading spring seat is provided with some installing holes, is provided with some pins that coordinate with installing hole on preloading spring seat.
2. the fastening structure of high-speed electric main shaft preloading spring seat as claimed in claim 1, is characterized in that: on body inwall, be provided with step, preloading spring seat is arranged between axle core and body and is supported on step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320893720.6U CN203711869U (en) | 2013-12-31 | 2013-12-31 | Fastening structure for pre-tightening spring base of high-speed motorized spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320893720.6U CN203711869U (en) | 2013-12-31 | 2013-12-31 | Fastening structure for pre-tightening spring base of high-speed motorized spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203711869U true CN203711869U (en) | 2014-07-16 |
Family
ID=51151068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320893720.6U Expired - Lifetime CN203711869U (en) | 2013-12-31 | 2013-12-31 | Fastening structure for pre-tightening spring base of high-speed motorized spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203711869U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112222933A (en) * | 2020-10-22 | 2021-01-15 | 哈尔滨理工大学 | Variable-voltage pre-tightening device of high-speed electric spindle |
-
2013
- 2013-12-31 CN CN201320893720.6U patent/CN203711869U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112222933A (en) * | 2020-10-22 | 2021-01-15 | 哈尔滨理工大学 | Variable-voltage pre-tightening device of high-speed electric spindle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140716 |