CN204002817U - A kind of shield machine rotary main shaft mechanism of working stability - Google Patents
A kind of shield machine rotary main shaft mechanism of working stability Download PDFInfo
- Publication number
- CN204002817U CN204002817U CN201420435116.3U CN201420435116U CN204002817U CN 204002817 U CN204002817 U CN 204002817U CN 201420435116 U CN201420435116 U CN 201420435116U CN 204002817 U CN204002817 U CN 204002817U
- Authority
- CN
- China
- Prior art keywords
- main shaft
- bearing
- locating cover
- ladder platform
- thrust bearing
- 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
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model relates to a kind of shield machine member, relate in particular to a kind of shield machine rotary main shaft mechanism of working stability, comprise main shaft, be located at the cutterhead gland of front-end of spindle, be located at the driving gear wheel at main shaft middle part and be provided with the bearing locating cover that drives gear wheel rear portion, in described bearing locating cover, be provided with ladder platform, between described ladder platform lower bearing locating cover and main shaft, be provided with thrust bearing, between described ladder platform upper bearing (metal) locating cover rear portion and main shaft, be provided with gap bearing.Owing to being provided with ladder platform in bearing locating cover; between described ladder platform lower bearing locating cover and main shaft, be provided with thrust bearing; between described ladder platform upper bearing (metal) locating cover rear portion and main shaft, be provided with gap bearing; thrust bearing is stuck in below ladder platform; effectively prevent that the outward pressure of thrust bearing is to the damage of device structure; in the time that the outward pressure of thrust bearing is excessive, the load protection of main shaft output just can make equipment downtime, makes equipment working stability.
Description
Technical field
The utility model relates to a kind of shield machine member, relates in particular to a kind of shield machine rotary main shaft mechanism of working stability.
Background technology
Shield machine rotary main shaft mechanism is the power take-off mechanism for driving the rotation of front end cutterhead, existing shield machine rotary main shaft mechanism comprises main shaft, be located at the cutterhead gland of front-end of spindle, be located at the driving gear wheel at main shaft middle part and be provided with the bearing locating cover that drives gear wheel rear portion, between bearing locating cover and thrust bearing, press fixing by nut, when in operating process, run into special circumstances, the outward pressure of bearing locating cover institute bearing thrust bearing is very large, easily nut is ejected, cause device damage.
Utility model content
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, and a kind of shield machine rotary main shaft mechanism of the working stability that prevents device damage is provided.
The utility model is to be achieved by the following technical programs:
A kind of shield machine rotary main shaft mechanism of working stability, comprise main shaft, be located at the cutterhead gland of front-end of spindle, be located at the driving gear wheel at main shaft middle part and be provided with the bearing locating cover that drives gear wheel rear portion, in described bearing locating cover, be provided with ladder platform, between described ladder platform lower bearing locating cover and main shaft, be provided with thrust bearing, between described ladder platform upper bearing (metal) locating cover rear portion and main shaft, be provided with gap bearing.
The beneficial effects of the utility model are:
Owing to being provided with ladder platform in bearing locating cover; between described ladder platform lower bearing locating cover and main shaft, be provided with thrust bearing; between described ladder platform upper bearing (metal) locating cover rear portion and main shaft, be provided with gap bearing; thrust bearing is stuck in below ladder platform; effectively prevent that the outward pressure of thrust bearing is to the damage of device structure; in the time that the outward pressure of thrust bearing is excessive, the load protection of main shaft output just can make equipment downtime, makes equipment working stability.
Brief description of the drawings
Fig. 1 is main TV structure schematic diagram of the present utility model.
In figure: 1. cutterhead gland, 2. main shaft, 3. drives gear wheel, 4. thrust bearing, 5. ladder platform, 6. gap bearing, 7. bearing locating cover.
Detailed description of the invention
In order to make those skilled in the art understand better the technical solution of the utility model, below in conjunction with accompanying drawing and most preferred embodiment, the utility model is described in further detail.
As shown in the figure, the utility model comprises main shaft 2, be located at the cutterhead gland 1 of front-end of spindle, be located at the driving gear wheel 3 at main shaft middle part and be provided with the bearing locating cover 7 that drives gear wheel rear portion, in described bearing locating cover, be provided with ladder platform 5, between described ladder platform lower bearing locating cover and main shaft, be provided with thrust bearing 4, between described ladder platform upper bearing (metal) locating cover rear portion and main shaft, be provided with gap bearing 6.
Owing to being provided with ladder platform in bearing locating cover; between described ladder platform lower bearing locating cover and main shaft, be provided with thrust bearing; between described ladder platform upper bearing (metal) locating cover rear portion and main shaft, be provided with gap bearing; thrust bearing is stuck in below ladder platform; effectively prevent that the outward pressure of thrust bearing is to the damage of device structure; in the time that the outward pressure of thrust bearing is excessive, the load protection of main shaft output just can make equipment downtime, makes equipment working stability.
The above is only preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (1)
1. the shield machine rotary main shaft mechanism of a working stability, it is characterized in that, comprise main shaft, be located at the cutterhead gland of front-end of spindle, be located at the driving gear wheel at main shaft middle part and be provided with the bearing locating cover that drives gear wheel rear portion, in described bearing locating cover, be provided with ladder platform, between described ladder platform lower bearing locating cover and main shaft, be provided with thrust bearing, between described ladder platform upper bearing (metal) locating cover rear portion and main shaft, be provided with gap bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420435116.3U CN204002817U (en) | 2014-07-31 | 2014-07-31 | A kind of shield machine rotary main shaft mechanism of working stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420435116.3U CN204002817U (en) | 2014-07-31 | 2014-07-31 | A kind of shield machine rotary main shaft mechanism of working stability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204002817U true CN204002817U (en) | 2014-12-10 |
Family
ID=52042836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420435116.3U Expired - Fee Related CN204002817U (en) | 2014-07-31 | 2014-07-31 | A kind of shield machine rotary main shaft mechanism of working stability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204002817U (en) |
-
2014
- 2014-07-31 CN CN201420435116.3U patent/CN204002817U/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 |
Granted publication date: 20141210 Termination date: 20150731 |
|
| EXPY | Termination of patent right or utility model |