CN202249746U - Multi-sealing power head - Google Patents
Multi-sealing power head Download PDFInfo
- Publication number
- CN202249746U CN202249746U CN2011203729212U CN201120372921U CN202249746U CN 202249746 U CN202249746 U CN 202249746U CN 2011203729212 U CN2011203729212 U CN 2011203729212U CN 201120372921 U CN201120372921 U CN 201120372921U CN 202249746 U CN202249746 U CN 202249746U
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- CN
- China
- Prior art keywords
- wheel hub
- power head
- installation casing
- key
- casing
- 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 multi-sealing power head, which relates to the field of machinery and in particular relates to the technical field of manufacturing the power head of a rotary digging drilling machine. The multi-sealing power head comprises an input shaft, a driving gear, a revolving support, a wheel hub, a key and an installation casing. The installation casing is coaxially arranged on the outer side of the wheel hub. The key is fixedly connected with the inner side of the wheel hub. The revolving support coaxially fixed to the wheel hub is provided with driven gear teeth. The driving gear fixedly connected with the input shaft is engaged with the driven gear teeth. The upper and lower parts of the installation casing are respectively provided with upper and lower oil seal boxes. Two skeleton oil seals are respectively arranged in the upper and lower oil seal boxes. Due to the adoption of the multi-sealing power head adopting the above structure, slurry is better prevented from damaging and intruding into the casing. Meanwhile, the accelerated wearing of the components of the power head, including the input shaft, the output shaft, the gear, the bearing and the like, are prevented. Therefore, the service life of the power head is prolonged.
Description
Technical field
The utility model relates to mechanical field, particularly the manufacturing technology field of rotary digging drill power head.
Background technology
Existing rotary drilling rig comprises power shaft, driven gear (containing revolution supports), wheel hub, key and the casing etc. of above-mentioned each part is installed; Thereby the splined shaft of power shaft through top is connected with reductor, hydraulic motor and gains impetus; Through being arranged on the driven wheel and said driven gear (containing revolution supports) engagement in the middle of the power shaft, driving the said wheel hub that is connected on the driven gear and working through the said key driving drilling rod that is installed on the wheel hub; In this simultaneously; The box house of installing parts is full of cooling, lubrication oil, and the wheel hub of casing rotation is when stretching out casing relatively, and the upper and lower of casing respectively is provided with an oil sealing box; The twice outside framework oil seal is installed in the following oil sealing box, one outside framework oil seal is installed in the last oil sealing box.The effect of this top single track sealing is bad, and when rotary drilling rig was worked, mud was prone to last sealing is damaged even get into casing, and gear, bearing are caused wearing and tearing, thereby shortened the application life of unit head.
Summary of the invention
The utility model provides a kind of many sealed motive forces head, and purpose is to overcome the unfavorable defective of an available dynamic sealing effectiveness.
The utility model comprises power shaft, driven wheel, revolution support, wheel hub, key, installation casing; The coaxial outside that is arranged on said wheel hub of said installation casing; Said key is fixedly connected on the inboard of said wheel hub, and coaxial being fixed on the said wheel hub supported in said revolution, on said revolution is supported, the driven gear teeth is set; Said driven wheel is fixedly connected on the said power shaft; Said driven wheel and driven gear teeth meshing are provided with upper and lower oil sealing box respectively in the upper and lower part of said installation casing, in said upper and lower oil sealing box, the twice outside framework oil seal are set respectively.
The utility model is provided with sealing than original unit head more, and it can prevent better that mud from damage to go up invading in the casing, and can prevent component accelerated wear tests such as input, output shaft, gear, bearing, thereby prolongs unit head application life.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model.
Among the figure, 1, power shaft, 2, the driven gear teeth, 3, wheel hub, 4, casing is installed, 5, outside framework oil seal, 6, go up the oil sealing box, 7, oil sealing box down, 9, driven wheel, 10, revolution supports, 11, key.
The specific embodiment
As shown in Figure 1, this many sealed motive forces head comprises power shaft 1, driven wheel 9, revolution support 10, wheel hub 3, key 11, casing 4 is installed; The casing 4 coaxial outsides that are arranged on wheel hub 3 are installed; Key 11 is fixedly connected on the inboard of wheel hub 3, and 10 coaxial being fixed on the wheel hub 3 are supported in revolution, supports on 10 that in revolution the driven gear teeth 2 being set; Driven wheel 9 is fixedly connected on the power shaft 1; Driven wheel 9 and the driven gear teeth 2 engagements are provided with upper and lower oil sealing box 6,7 respectively in the upper and lower part that casing 4 is installed, and in said upper and lower oil sealing box 6,7, twice outside framework oil seal 5 are set respectively.
Claims (1)
1. sealed motive force head more than a kind; Comprise power shaft, driven wheel, revolution support, wheel hub, key, installation casing, the coaxial outside that is arranged on said wheel hub of said installation casing, said key is fixedly connected on the inboard of said wheel hub; Coaxial being fixed on the said wheel hub supported in said revolution; On said revolution is supported, the driven gear teeth are set, said driven wheel is fixedly connected on the said power shaft, said driven wheel and driven gear teeth meshing; In the upper and lower part of said installation casing upper and lower oil sealing box is set respectively, it is characterized in that in said upper and lower oil sealing box, the twice outside framework oil seal being set respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203729212U CN202249746U (en) | 2011-09-28 | 2011-09-28 | Multi-sealing power head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203729212U CN202249746U (en) | 2011-09-28 | 2011-09-28 | Multi-sealing power head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202249746U true CN202249746U (en) | 2012-05-30 |
Family
ID=46111005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203729212U Expired - Fee Related CN202249746U (en) | 2011-09-28 | 2011-09-28 | Multi-sealing power head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202249746U (en) |
-
2011
- 2011-09-28 CN CN2011203729212U patent/CN202249746U/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: 20120530 Termination date: 20150928 |
|
| EXPY | Termination of patent right or utility model |