CN203362026U - Power head capable of preventing sand from entering box body - Google Patents
Power head capable of preventing sand from entering box body Download PDFInfo
- Publication number
- CN203362026U CN203362026U CN 201320374866 CN201320374866U CN203362026U CN 203362026 U CN203362026 U CN 203362026U CN 201320374866 CN201320374866 CN 201320374866 CN 201320374866 U CN201320374866 U CN 201320374866U CN 203362026 U CN203362026 U CN 203362026U
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- CN
- China
- Prior art keywords
- output shaft
- box body
- upper cover
- shaft upper
- key
- 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 provides a power head capable of preventing sand from entering a box body and relates to the field of machinery, in particular to the technical field of rotary drilling rig power head manufacturing. The power head capable of preventing sand from entering the box body comprises a hub, a key sleeve, the power box body, a driving gear and a driven gear. The hub and the key sleeve are fixed together through a lengthened key. The power box body is fixed to the periphery of the hub in a coaxial mode. The driven gear and the hub are fixed into a whole through a transmission pin. An output shaft upper cover tightly matched with the power box body is fixedly connected to the upper end of the power box body. An oil seal is arranged between the output shaft upper cover and the hub. A key sleeve flange is arranged above the output shaft upper cover. The key sleeve flange is fixed to the periphery of the key sleeve and arranged in a coaxial mode. A dustproof ring is arranged between the key sleeve flange and the output shaft upper cover. One end of the dustproof ring is fixedly connected to the output shaft upper cover, a dustproof groove is formed in the key sleeve flange, the other end of the dustproof ring is arranged in the dustproof groove, and grease is injected into the dustproof groove. According to the power head capable of preventing sand from entering the box body, the phenomenon that the power head can not work normally due to the fact that sand enters the box body under the condition that the dustproof oil seal is damaged is avoided.
Description
Technical field
The utility model relates to mechanical field, particularly the manufacturing technology field of rotary digging drill power head.
Background technology
Existing unit head is dug sand at brill, when stone, rock stratum, invade gear-box because the anti-dust seal wearing and tearing cause silt particle, thereby make unit head badly damaged; Therefore take effectively to prevent that the silt particle measure is most important.
The utility model content
The utility model purpose is to provide a kind of can prevent that silt from immersing the unit head of casing, to guarantee the normal operation of unit head, and reduces the maintenance difficulty.
The utility model comprises wheel hub, the key cover, power box, driven wheel, driven gear, described wheel hub and described key cover are fixed together by lengthening key, described power box coaxially is fixed on described wheel hub periphery, described driven wheel, driven gear is arranged in described power box, described driven gear and described wheel hub are fixed as one by trundle, described driven wheel and the engagement of described driven gear, be fixedly connected with close-fitting output shaft upper cover with it in described power box upper end, between described output shaft upper cover and described wheel hub, oil sealing is set, key cover flange is set above described output shaft upper cover, described key cover flange is fixed on periphery and coaxial setting of described key cover, between described key cover flange and described output shaft upper cover, dust ring is set, one end of described dust ring is fixedly connected on described output shaft and covers, on described key cover flange, dustproof groove is set, described dustproof groove is towards the output shaft upper cover, the other end of described dust ring is arranged in described dustproof groove, inject butter in described dustproof groove.
The utility model by arranging dust ring above power box, be provided with dustproof groove in key cover flange simultaneously, and butter is set in dustproof groove, it can prevent that under the anti-dust seal damage situations, silt immerses casing, the phenomenon that causes unit head to work, simultaneously, maintenance is only to need to change anti-dust seal, do not need to clear up the silt in casing, make maintenance difficulty greatly reduce.
The accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model.
The specific embodiment
As shown in Figure 1, this unit head comprises lengthening key 1, wheel hub 3, key cover 2, power box 6, driven wheel 5, driven gear 4, wheel hub 3 is fixed together by lengthening key 1 with key cover 2, power box 6 coaxially is fixed on wheel hub 3 peripheries, driven wheel 5, driven gear 4 is arranged in power box 6, driven gear 4 is fixed as one by trundle with wheel hub 6, driven wheel 5 and driven gear 4 engagements, be fixedly connected with close-fitting output shaft upper cover 7 with it in power box 6 upper ends, between output shaft upper cover 7 and wheel hub 3, oil sealing 8 is set, key cover flange 10 is set above output shaft upper cover 7, key cover flange 10 is fixed on periphery and coaxial setting of key cover 2, between key cover flange 10 and output shaft upper cover 7, dust ring 9 is set, one end of dust ring 9 is fixedly connected on output shaft upper cover 7, on key cover flange 10, dustproof groove 11 is set, dustproof groove 11 is towards output shaft upper cover 7, the other end of dust ring 9 is arranged in dustproof groove 11, at the interior injection butter of dustproof groove 11.
Claims (1)
1. anti-silt immerses the unit head of casing, comprise wheel hub, the key cover, power box, driven wheel, driven gear, described wheel hub and described key cover are fixed together by lengthening key, described power box coaxially is fixed on described wheel hub periphery, described driven wheel, driven gear is arranged in described power box, described driven gear and described wheel hub are fixed as one by trundle, described driven wheel and the engagement of described driven gear, it is fixedly connected with close-fitting output shaft upper cover with it in described power box upper end, between described output shaft upper cover and described wheel hub, oil sealing is set, it is characterized in that arranging key cover flange above described output shaft upper cover, described key cover flange is fixed on periphery and coaxial setting of described key cover, between described key cover flange and described output shaft upper cover, dust ring is set, one end of described dust ring is fixedly connected on described output shaft and covers, on described key cover flange, dustproof groove is set, described dustproof groove is towards the output shaft upper cover, the other end of described dust ring is arranged in described dustproof groove, inject butter in described dustproof groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320374866 CN203362026U (en) | 2013-06-27 | 2013-06-27 | Power head capable of preventing sand from entering box body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320374866 CN203362026U (en) | 2013-06-27 | 2013-06-27 | Power head capable of preventing sand from entering box body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203362026U true CN203362026U (en) | 2013-12-25 |
Family
ID=49809812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320374866 Expired - Fee Related CN203362026U (en) | 2013-06-27 | 2013-06-27 | Power head capable of preventing sand from entering box body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203362026U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291211A (en) * | 2013-06-27 | 2013-09-11 | 高邮市恒辉机械有限公司 | Power head preventing silt from intruding into box body |
| CN107869307A (en) * | 2017-10-10 | 2018-04-03 | 合肥果成科技有限公司 | A kind of unit head for driving drill bit to enter rock |
-
2013
- 2013-06-27 CN CN 201320374866 patent/CN203362026U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291211A (en) * | 2013-06-27 | 2013-09-11 | 高邮市恒辉机械有限公司 | Power head preventing silt from intruding into box body |
| CN107869307A (en) * | 2017-10-10 | 2018-04-03 | 合肥果成科技有限公司 | A kind of unit head for driving drill bit to enter rock |
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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: 20131225 Termination date: 20210627 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |