CN203272659U - Hollow cooling lead screw device - Google Patents
Hollow cooling lead screw device Download PDFInfo
- Publication number
- CN203272659U CN203272659U CN 201320325645 CN201320325645U CN203272659U CN 203272659 U CN203272659 U CN 203272659U CN 201320325645 CN201320325645 CN 201320325645 CN 201320325645 U CN201320325645 U CN 201320325645U CN 203272659 U CN203272659 U CN 203272659U
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- CN
- China
- Prior art keywords
- bearing
- lead screw
- screw mandrel
- central shaft
- shaft hole
- 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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- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model relates to a hollow cooling lead screw device, belonging to the field of machine tool parts devices. Existing lead screw devices have the defect of poor heat dissipation effect due to heat expansion caused by high speed rotation. According to the utility model, a central axial hole is formed in the lead screw, a front flange plate and a rear flange plate are provided with an air inlet and an oil outlet, the oil inlet is divided into two paths, one part of the oil inlet is communicated with the central axial hole, the other path of the oil inlet is communicated with the front side of a bearing installation chamber of a front bearing support, and the rear side of the bearing installation chamber of the front bearing support is provided with a first inner hole communicated with the central axial hole; the front side of the bearing installation chamber of a rear bearing support is provided with a second inner hole communicated with the central axial hole, and the rear flange plate is provided with an inner chamber respectively communicated with the central axial hole, the rear side of the bearing installation chamber on the rear bearing support and the oil outlet. According to the utility model, the heat dissipation effect of the lead screw device is improved.
Description
Technical field
The utility model belongs to machine tool component device field, and is especially relevant with a kind of cooling unit of hollow screw mandrel of High Rotation Speed.
Background technique
The heat of traditional spindle gear screw mandrel and bearing rotary position generation relies on the mode of nature to dispel the heat, heat dissipation rate is slow, thereby cause when High Rotation Speed moment to produce a large amount of heats and can cause the screw mandrel heat expansion that is rapidly heated, cause running accuracy and stability decreases, can't satisfy the performance requirement of numerical control machine tool high-speed, high precision.
The model utility content
The purpose of this utility model is intended to overcome the defectives such as radiating effect that High Rotation Speed heat expansion that existing lead screw device exists causes is poor, and a kind of simple and compact for structure, radiating effect lead screw device preferably is provided.
for this reason, the utility model is by the following technical solutions: the cooling lead screw device of hollow, comprise screw mandrel, the fore bearing bearing, the rear bearing bearing, forward flange dish and rear stub, screw mandrel supports in the axis hole that is threaded onto fore bearing bearing and rear bearing bearing by bearing pack, fore bearing bearing and rear bearing bearing are positioned at the two ends of screw mandrel, the forward flange dish is set on the fore bearing bearing, on the rear bearing bearing, rear stub is set, it is characterized in that, on described screw mandrel, central shaft hole is set, be provided with filler opening and oil outlet on described forward flange dish and rear stub, filler opening is divided into two-way, filler opening one tunnel connects with described central shaft hole, the front side of the bearing installation cavity of another road and fore bearing bearing connects, the rear side of the bearing installation cavity of fore bearing bearing is provided with the first endoporus that connects with central shaft hole, cold oil enters filler opening and enters respectively in central shaft hole and bearing cavity, the cold oil of cold oil in the first endoporus and central shaft hole that enters bearing cavity converges, the front side of the bearing installation cavity of rear bearing bearing is provided with the second endoporus that connects with central shaft hole, rear stub be provided with respectively with central shaft hole, rear bearing bearing on the rear side of bearing installation cavity and the inner chamber that oil outlet connects, cold oil is shunted in the bearing cavity that enters the rear bearing bearing again through the second endoporus, converge in inner chamber after the outflow bearing cavity with after axis hole, flow out the screw mandrel axis hole through oil outlet.
Use the utility model can reach following beneficial effect: the utility model is when the screw mandrel High Rotation Speed, the Seal cage of cold oil by screw mandrel and the bearing heat that feed screw nut and bearing produce during with High Rotation Speed is taken away, and realize that by the thermostatic control performance of compressor the screw mandrel temperature is controlled in very little range of temperature, realize High Rotation Speed and the stable accuracy of screw mandrel.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.
as shown in Figure 1, the utility model comprises screw mandrel 3, fore bearing bearing 2, rear bearing bearing 4, forward flange dish 1 and rear stub 5, screw mandrel 3 supports in the axis hole that is threaded onto fore bearing bearing 2 and rear bearing bearing 4 by bearing pack, fore bearing bearing 2 and rear bearing bearing 4 are positioned at the two ends of screw mandrel 3, forward flange dish 1 is set on fore bearing bearing 2, rear stub 5 is set on rear bearing bearing 4, central shaft hole 7 is set on screw mandrel 3, be provided with filler opening 8 and oil outlet 6 on forward flange dish 1 and rear stub 5, filler opening 8 is divided into two-way, filler opening 8 one tunnel connects with described central shaft hole 7, the front side of the bearing installation cavity of another road and fore bearing bearing 2 connects, the rear side of the bearing installation cavity of fore bearing bearing 2 is provided with the first endoporus that connects with central shaft hole 7, cold oil enters filler opening and enters respectively in central shaft hole 7 and bearing cavity, the cold oil of cold oil in the first endoporus and central shaft hole 7 that enters bearing cavity converges, the front side of the bearing installation cavity of rear bearing bearing 4 is provided with the second endoporus that connects with central shaft hole 7, rear stub 5 be provided with respectively with central shaft hole 7, rear bearing bearing 4 on the rear side of bearing installation cavity and the inner chamber that oil outlet 6 connects, cold oil is shunted in the bearing cavity that enters rear bearing bearing 4 again through the second endoporus, converge in inner chamber after the outflow bearing cavity with after axis hole, flow out the screw mandrel axis holes through oil outlet 6.
The utility model is when the screw mandrel High Rotation Speed, the Seal cage of cold oil by screw mandrel 3 and the bearing heat that feed screw nut and bearing produce during with High Rotation Speed is taken away, and realize that by the thermostatic control performance of compressor the screw mandrel temperature is controlled in very little range of temperature, realize High Rotation Speed and the stable accuracy of screw mandrel.
Claims (1)
1. the cooling lead screw device of hollow, comprise screw mandrel (3), fore bearing bearing (2), rear bearing bearing (4), forward flange dish (1) and rear stub (5), screw mandrel (3) supports in the axis hole that is threaded onto fore bearing bearing (2) and rear bearing bearing (4) by bearing pack, fore bearing bearing (2) and rear bearing bearing (4) are positioned at the two ends of screw mandrel (3), forward flange dish (1) is set on fore bearing bearing (2), rear stub (5) is set on rear bearing bearing (4), it is characterized in that: central shaft hole (7) is set on described screw mandrel (3), be provided with filler opening (8) and oil outlet (6) on described forward flange dish (1) and rear stub (5), filler opening (8) is divided into two-way, filler opening (8) one tunnel connects with described central shaft hole (7), the front side of the bearing installation cavity of another road and fore bearing bearing (2) connects, the rear side of the bearing installation cavity of fore bearing bearing (2) is provided with the first endoporus that connects with central shaft hole (7), the front side of the bearing installation cavity of rear bearing bearing (4) is provided with the second endoporus that connects with central shaft hole (7), rear stub (5) be provided with respectively with central shaft hole (7), rear bearing bearing (4) on the rear side of bearing installation cavity and the inner chamber that oil outlet (6) connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320325645 CN203272659U (en) | 2013-06-05 | 2013-06-05 | Hollow cooling lead screw device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320325645 CN203272659U (en) | 2013-06-05 | 2013-06-05 | Hollow cooling lead screw device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203272659U true CN203272659U (en) | 2013-11-06 |
Family
ID=49503078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320325645 Expired - Lifetime CN203272659U (en) | 2013-06-05 | 2013-06-05 | Hollow cooling lead screw device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203272659U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547118A (en) * | 2015-12-08 | 2016-05-04 | 淄博柴油机总公司 | Diesel engine block bearing hole coaxiality measuring device |
| CN108857530A (en) * | 2018-08-01 | 2018-11-23 | 江苏匠准数控机床有限公司 | A kind of numerically-controlled machine tool screw rod |
| CN109590809A (en) * | 2019-01-24 | 2019-04-09 | 江门市奥斯龙机械有限公司 | Integrated digital controlled machining center |
-
2013
- 2013-06-05 CN CN 201320325645 patent/CN203272659U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547118A (en) * | 2015-12-08 | 2016-05-04 | 淄博柴油机总公司 | Diesel engine block bearing hole coaxiality measuring device |
| CN108857530A (en) * | 2018-08-01 | 2018-11-23 | 江苏匠准数控机床有限公司 | A kind of numerically-controlled machine tool screw rod |
| CN109590809A (en) * | 2019-01-24 | 2019-04-09 | 江门市奥斯龙机械有限公司 | Integrated digital controlled machining center |
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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: 20131106 |