CN201053486Y - Skew gear for cutter - Google Patents
Skew gear for cutter Download PDFInfo
- Publication number
- CN201053486Y CN201053486Y CNU2007201554058U CN200720155405U CN201053486Y CN 201053486 Y CN201053486 Y CN 201053486Y CN U2007201554058 U CNU2007201554058 U CN U2007201554058U CN 200720155405 U CN200720155405 U CN 200720155405U CN 201053486 Y CN201053486 Y CN 201053486Y
- Authority
- CN
- China
- Prior art keywords
- bearing
- axis hole
- gear
- helical gear
- diameter
- 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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Abstract
The utility model discloses a bevel gear used in a cutting machine, comprising a gear axle hole, wherein, the inside of the gear axle hole is provided with a bearing which is in interference fit with the axle hole; moreover, the diameter of the inner hole of the bearing is equal to the diameter of the shaft of the bevel gear; the bearing is a radial-thrust ball bearing; the edge of the axle hole is provided with a annular flange protruding inwards; moreover, the inside diameter of the annular flange is slightly bigger than that of a bearing cup. The bevel gear has a simple structure, low abrasion, long service life and low use cost.
Description
Technical field
The utility model relates to a kind of mechanical transmission part, relates to a kind of cutting out machine helical gear particularly.
Background technique
Existing cutting out machine generally directly is enclosed within on the optical axis with helical gear, its when rotating with an axle direct friction because the axle surface is through a surface treatment; hardness is higher, so the helical gear often of wearing and tearing, in use for some time; helical gear usually can be because of wearing and tearing need to change, and user cost is than higher.Therefore also there is employing in the helical gear axis hole, to add the copper sheathing way at present, reduced wearing and tearing to a certain extent, but still can not tackle the problem at its root to reduce helical gear wearing and tearing.
The model utility content
The purpose of this utility model is at the problems referred to above, provides a kind of simple in structure, wear and tear little, the life-span is long, the cutting out machine helical gear that user cost is low.
For achieving the above object, the utility model adopts following technological scheme:
A kind of cutting out machine helical gear comprises the gear axis hole, in the gear axis hole bearing is housed, and bearing and described axis hole interference fit and brearing bore diameter equal the helical gear shaft diameter.
Described bearing is an angular contact ball bearing, the oriented projecting inward annular flange flange of described axis hole marginal zone, and the internal diameter of this annular flange flange is slightly larger than the bearing outer ring internal diameter.
Owing in the gear axis hole, bearing is housed, replace sliding friction by rolling friction between helical gear and the gear shaft, gear wear is little, only need change bearing and get final product when bearing wear, has prolonged the working life of gear greatly, and its user cost is lower.Bearing uses radial thrust bearing and at the axis hole edge annular flange flange is set, but its bearing radial force not only can also bear certain axial force, and to gear shaft, transmission is more reliable with axial force transmission; The annular flange flange slightly larger in diameter is changed bearing in the bearing outer ring internal diameter in the time of can making things convenient for bearing wear.
Description of drawings
Fig. 1 is the utility model helical gear structural representation.
Fig. 2 is the another kind of helical gear structural representation of the utility model.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, cutting out machine helical gear of the present utility model comprises gear axis hole 1, and bearing 2 is housed in the gear axis hole, and bearing 2 equals the helical gear shaft diameter with described axis hole 1 interference fit and brearing bore diameter.
As shown in Figure 2, described bearing can be angular contact ball bearing, the oriented projecting inward annular flange flange 3 of described axis hole 1 marginal zone, and the internal diameter of this annular flange flange 3 is slightly larger than bearing 1 outer ring internal diameter.
With way of example the utility model is illustrated above, but the utility model is not limited to above-mentioned specific embodiment the protection domain that all any improvement done based on the utility model or modification all belong to the utility model claim.
Claims (2)
1. a cutting out machine helical gear comprises the gear axis hole, it is characterized in that: in the gear axis hole bearing is housed, bearing and described axis hole interference fit and brearing bore diameter equal the helical gear shaft diameter.
2. cutting out machine helical gear according to claim 1 is characterized in that: described bearing is an angular contact ball bearing, the oriented projecting inward annular flange flange of described axis hole marginal zone, and the internal diameter of this annular flange flange is slightly larger than the bearing outer ring internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201554058U CN201053486Y (en) | 2007-06-29 | 2007-06-29 | Skew gear for cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201554058U CN201053486Y (en) | 2007-06-29 | 2007-06-29 | Skew gear for cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201053486Y true CN201053486Y (en) | 2008-04-30 |
Family
ID=39393149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201554058U Expired - Fee Related CN201053486Y (en) | 2007-06-29 | 2007-06-29 | Skew gear for cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201053486Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265864A (en) * | 2014-09-17 | 2015-01-07 | 常熟市华德粉末冶金有限公司 | Powder metallurgical planetary gear for high-power starter |
| CN107314106A (en) * | 2017-06-12 | 2017-11-03 | 南通国盛智能科技集团股份有限公司 | A kind of gearshift mechanism of gear box |
-
2007
- 2007-06-29 CN CNU2007201554058U patent/CN201053486Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265864A (en) * | 2014-09-17 | 2015-01-07 | 常熟市华德粉末冶金有限公司 | Powder metallurgical planetary gear for high-power starter |
| CN107314106A (en) * | 2017-06-12 | 2017-11-03 | 南通国盛智能科技集团股份有限公司 | A kind of gearshift mechanism of gear box |
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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 |
Granted publication date: 20080430 Termination date: 20140629 |
|
| EXPY | Termination of patent right or utility model |